Mercurial > hg
annotate mercurial/help/internals/wireprotocol.txt @ 30828:0b792507ea15
help: don't let tools reflow revlog flags list
Before this change, the text about revlog flags was reflowed into a
single paragraph, which made it a bit hard to read. I don't even know
the rules around this, but adding a blank line before each flag seems
to prevent the reflowing.
author | Martin von Zweigbergk <martinvonz@google.com> |
---|---|
date | Tue, 17 Jan 2017 11:45:10 -0800 |
parents | 7283719e2bfd |
children | 435a3842ca3a |
rev | line source |
---|---|
29859
a1092e2d70a3
help: internals topic for wire protocol
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
1 The Mercurial wire protocol is a request-response based protocol |
a1092e2d70a3
help: internals topic for wire protocol
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
2 with multiple wire representations. |
a1092e2d70a3
help: internals topic for wire protocol
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
3 |
a1092e2d70a3
help: internals topic for wire protocol
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
4 Each request is modeled as a command name, a dictionary of arguments, and |
a1092e2d70a3
help: internals topic for wire protocol
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
5 optional raw input. Command arguments and their types are intrinsic |
a1092e2d70a3
help: internals topic for wire protocol
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
6 properties of commands. So is the response type of the command. This means |
a1092e2d70a3
help: internals topic for wire protocol
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
7 clients can't always send arbitrary arguments to servers and servers can't |
a1092e2d70a3
help: internals topic for wire protocol
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
8 return multiple response types. |
a1092e2d70a3
help: internals topic for wire protocol
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
9 |
a1092e2d70a3
help: internals topic for wire protocol
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
10 The protocol is synchronous and does not support multiplexing (concurrent |
a1092e2d70a3
help: internals topic for wire protocol
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
11 commands). |
29860
b42c26b0a785
help: document wire protocol transport protocols
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29859
diff
changeset
|
12 |
b42c26b0a785
help: document wire protocol transport protocols
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29859
diff
changeset
|
13 Transport Protocols |
b42c26b0a785
help: document wire protocol transport protocols
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29859
diff
changeset
|
14 =================== |
b42c26b0a785
help: document wire protocol transport protocols
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29859
diff
changeset
|
15 |
b42c26b0a785
help: document wire protocol transport protocols
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29859
diff
changeset
|
16 HTTP Transport |
b42c26b0a785
help: document wire protocol transport protocols
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29859
diff
changeset
|
17 -------------- |
b42c26b0a785
help: document wire protocol transport protocols
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29859
diff
changeset
|
18 |
b42c26b0a785
help: document wire protocol transport protocols
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29859
diff
changeset
|
19 Commands are issued as HTTP/1.0 or HTTP/1.1 requests. Commands are |
b42c26b0a785
help: document wire protocol transport protocols
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29859
diff
changeset
|
20 sent to the base URL of the repository with the command name sent in |
b42c26b0a785
help: document wire protocol transport protocols
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29859
diff
changeset
|
21 the ``cmd`` query string parameter. e.g. |
b42c26b0a785
help: document wire protocol transport protocols
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29859
diff
changeset
|
22 ``https://example.com/repo?cmd=capabilities``. The HTTP method is ``GET`` |
b42c26b0a785
help: document wire protocol transport protocols
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29859
diff
changeset
|
23 or ``POST`` depending on the command and whether there is a request |
b42c26b0a785
help: document wire protocol transport protocols
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29859
diff
changeset
|
24 body. |
b42c26b0a785
help: document wire protocol transport protocols
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29859
diff
changeset
|
25 |
b42c26b0a785
help: document wire protocol transport protocols
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29859
diff
changeset
|
26 Command arguments can be sent multiple ways. |
b42c26b0a785
help: document wire protocol transport protocols
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29859
diff
changeset
|
27 |
b42c26b0a785
help: document wire protocol transport protocols
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29859
diff
changeset
|
28 The simplest is part of the URL query string using ``x-www-form-urlencoded`` |
b42c26b0a785
help: document wire protocol transport protocols
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29859
diff
changeset
|
29 encoding (see Python's ``urllib.urlencode()``. However, many servers impose |
b42c26b0a785
help: document wire protocol transport protocols
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29859
diff
changeset
|
30 length limitations on the URL. So this mechanism is typically only used if |
b42c26b0a785
help: document wire protocol transport protocols
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29859
diff
changeset
|
31 the server doesn't support other mechanisms. |
b42c26b0a785
help: document wire protocol transport protocols
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29859
diff
changeset
|
32 |
b42c26b0a785
help: document wire protocol transport protocols
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29859
diff
changeset
|
33 If the server supports the ``httpheader`` capability, command arguments can |
b42c26b0a785
help: document wire protocol transport protocols
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29859
diff
changeset
|
34 be sent in HTTP request headers named ``X-HgArg-<N>`` where ``<N>`` is an |
b42c26b0a785
help: document wire protocol transport protocols
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29859
diff
changeset
|
35 integer starting at 1. A ``x-www-form-urlencoded`` representation of the |
b42c26b0a785
help: document wire protocol transport protocols
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29859
diff
changeset
|
36 arguments is obtained. This full string is then split into chunks and sent |
b42c26b0a785
help: document wire protocol transport protocols
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29859
diff
changeset
|
37 in numbered ``X-HgArg-<N>`` headers. The maximum length of each HTTP header |
b42c26b0a785
help: document wire protocol transport protocols
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29859
diff
changeset
|
38 is defined by the server in the ``httpheader`` capability value, which defaults |
b42c26b0a785
help: document wire protocol transport protocols
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29859
diff
changeset
|
39 to ``1024``. The server reassembles the encoded arguments string by |
b42c26b0a785
help: document wire protocol transport protocols
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29859
diff
changeset
|
40 concatenating the ``X-HgArg-<N>`` headers then URL decodes them into a |
b42c26b0a785
help: document wire protocol transport protocols
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29859
diff
changeset
|
41 dictionary. |
b42c26b0a785
help: document wire protocol transport protocols
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29859
diff
changeset
|
42 |
b42c26b0a785
help: document wire protocol transport protocols
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29859
diff
changeset
|
43 The list of ``X-HgArg-<N>`` headers should be added to the ``Vary`` request |
b42c26b0a785
help: document wire protocol transport protocols
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29859
diff
changeset
|
44 header to instruct caches to take these headers into consideration when caching |
b42c26b0a785
help: document wire protocol transport protocols
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29859
diff
changeset
|
45 requests. |
b42c26b0a785
help: document wire protocol transport protocols
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29859
diff
changeset
|
46 |
b42c26b0a785
help: document wire protocol transport protocols
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29859
diff
changeset
|
47 If the server supports the ``httppostargs`` capability, the client |
b42c26b0a785
help: document wire protocol transport protocols
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29859
diff
changeset
|
48 may send command arguments in the HTTP request body as part of an |
b42c26b0a785
help: document wire protocol transport protocols
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29859
diff
changeset
|
49 HTTP POST request. The command arguments will be URL encoded just like |
b42c26b0a785
help: document wire protocol transport protocols
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29859
diff
changeset
|
50 they would for sending them via HTTP headers. However, no splitting is |
b42c26b0a785
help: document wire protocol transport protocols
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29859
diff
changeset
|
51 performed: the raw arguments are included in the HTTP request body. |
b42c26b0a785
help: document wire protocol transport protocols
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29859
diff
changeset
|
52 |
b42c26b0a785
help: document wire protocol transport protocols
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29859
diff
changeset
|
53 The client sends a ``X-HgArgs-Post`` header with the string length of the |
b42c26b0a785
help: document wire protocol transport protocols
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29859
diff
changeset
|
54 encoded arguments data. Additional data may be included in the HTTP |
b42c26b0a785
help: document wire protocol transport protocols
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29859
diff
changeset
|
55 request body immediately following the argument data. The offset of the |
b42c26b0a785
help: document wire protocol transport protocols
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29859
diff
changeset
|
56 non-argument data is defined by the ``X-HgArgs-Post`` header. The |
b42c26b0a785
help: document wire protocol transport protocols
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29859
diff
changeset
|
57 ``X-HgArgs-Post`` header is not required if there is no argument data. |
b42c26b0a785
help: document wire protocol transport protocols
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29859
diff
changeset
|
58 |
b42c26b0a785
help: document wire protocol transport protocols
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29859
diff
changeset
|
59 Additional command data can be sent as part of the HTTP request body. The |
b42c26b0a785
help: document wire protocol transport protocols
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29859
diff
changeset
|
60 default ``Content-Type`` when sending data is ``application/mercurial-0.1``. |
b42c26b0a785
help: document wire protocol transport protocols
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29859
diff
changeset
|
61 A ``Content-Length`` header is currently always sent. |
b42c26b0a785
help: document wire protocol transport protocols
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29859
diff
changeset
|
62 |
b42c26b0a785
help: document wire protocol transport protocols
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29859
diff
changeset
|
63 Example HTTP requests:: |
b42c26b0a785
help: document wire protocol transport protocols
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29859
diff
changeset
|
64 |
b42c26b0a785
help: document wire protocol transport protocols
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29859
diff
changeset
|
65 GET /repo?cmd=capabilities |
b42c26b0a785
help: document wire protocol transport protocols
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29859
diff
changeset
|
66 X-HgArg-1: foo=bar&baz=hello%20world |
b42c26b0a785
help: document wire protocol transport protocols
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29859
diff
changeset
|
67 |
30760
753b9d43ca81
internals: document compression negotiation
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29865
diff
changeset
|
68 The request media type should be chosen based on server support. If the |
753b9d43ca81
internals: document compression negotiation
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29865
diff
changeset
|
69 ``httpmediatype`` server capability is present, the client should send |
753b9d43ca81
internals: document compression negotiation
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29865
diff
changeset
|
70 the newest mutually supported media type. If this capability is absent, |
753b9d43ca81
internals: document compression negotiation
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29865
diff
changeset
|
71 the client must assume the server only supports the |
753b9d43ca81
internals: document compression negotiation
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29865
diff
changeset
|
72 ``application/mercurial-0.1`` media type. |
753b9d43ca81
internals: document compression negotiation
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29865
diff
changeset
|
73 |
29860
b42c26b0a785
help: document wire protocol transport protocols
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29859
diff
changeset
|
74 The ``Content-Type`` HTTP response header identifies the response as coming |
b42c26b0a785
help: document wire protocol transport protocols
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29859
diff
changeset
|
75 from Mercurial and can also be used to signal an error has occurred. |
b42c26b0a785
help: document wire protocol transport protocols
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29859
diff
changeset
|
76 |
30760
753b9d43ca81
internals: document compression negotiation
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29865
diff
changeset
|
77 The ``application/mercurial-*`` media types indicate a generic Mercurial |
753b9d43ca81
internals: document compression negotiation
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29865
diff
changeset
|
78 data type. |
753b9d43ca81
internals: document compression negotiation
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29865
diff
changeset
|
79 |
753b9d43ca81
internals: document compression negotiation
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29865
diff
changeset
|
80 The ``application/mercurial-0.1`` media type is raw Mercurial data. It is the |
753b9d43ca81
internals: document compression negotiation
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29865
diff
changeset
|
81 predecessor of the format below. |
753b9d43ca81
internals: document compression negotiation
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29865
diff
changeset
|
82 |
753b9d43ca81
internals: document compression negotiation
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29865
diff
changeset
|
83 The ``application/mercurial-0.2`` media type is compression framed Mercurial |
753b9d43ca81
internals: document compression negotiation
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29865
diff
changeset
|
84 data. The first byte of the payload indicates the length of the compression |
753b9d43ca81
internals: document compression negotiation
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29865
diff
changeset
|
85 format identifier that follows. Next are N bytes indicating the compression |
753b9d43ca81
internals: document compression negotiation
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29865
diff
changeset
|
86 format. e.g. ``zlib``. The remaining bytes are compressed according to that |
753b9d43ca81
internals: document compression negotiation
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29865
diff
changeset
|
87 compression format. The decompressed data behaves the same as with |
753b9d43ca81
internals: document compression negotiation
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29865
diff
changeset
|
88 ``application/mercurial-0.1``. |
29860
b42c26b0a785
help: document wire protocol transport protocols
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29859
diff
changeset
|
89 |
b42c26b0a785
help: document wire protocol transport protocols
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29859
diff
changeset
|
90 The ``application/hg-error`` media type indicates a generic error occurred. |
b42c26b0a785
help: document wire protocol transport protocols
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29859
diff
changeset
|
91 The content of the HTTP response body typically holds text describing the |
b42c26b0a785
help: document wire protocol transport protocols
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29859
diff
changeset
|
92 error. |
b42c26b0a785
help: document wire protocol transport protocols
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29859
diff
changeset
|
93 |
b42c26b0a785
help: document wire protocol transport protocols
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29859
diff
changeset
|
94 The ``application/hg-changegroup`` media type indicates a changegroup response |
b42c26b0a785
help: document wire protocol transport protocols
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29859
diff
changeset
|
95 type. |
b42c26b0a785
help: document wire protocol transport protocols
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29859
diff
changeset
|
96 |
b42c26b0a785
help: document wire protocol transport protocols
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29859
diff
changeset
|
97 Clients also accept the ``text/plain`` media type. All other media |
b42c26b0a785
help: document wire protocol transport protocols
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29859
diff
changeset
|
98 types should cause the client to error. |
b42c26b0a785
help: document wire protocol transport protocols
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29859
diff
changeset
|
99 |
30760
753b9d43ca81
internals: document compression negotiation
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29865
diff
changeset
|
100 Behavior of media types is further described in the ``Content Negotiation`` |
753b9d43ca81
internals: document compression negotiation
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29865
diff
changeset
|
101 section below. |
753b9d43ca81
internals: document compression negotiation
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29865
diff
changeset
|
102 |
29860
b42c26b0a785
help: document wire protocol transport protocols
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29859
diff
changeset
|
103 Clients should issue a ``User-Agent`` request header that identifies the client. |
b42c26b0a785
help: document wire protocol transport protocols
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29859
diff
changeset
|
104 The server should not use the ``User-Agent`` for feature detection. |
b42c26b0a785
help: document wire protocol transport protocols
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29859
diff
changeset
|
105 |
30760
753b9d43ca81
internals: document compression negotiation
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29865
diff
changeset
|
106 A command returning a ``string`` response issues a |
753b9d43ca81
internals: document compression negotiation
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29865
diff
changeset
|
107 ``application/mercurial-0.*`` media type and the HTTP response body contains |
753b9d43ca81
internals: document compression negotiation
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29865
diff
changeset
|
108 the raw string value (after compression decoding, if used). A |
753b9d43ca81
internals: document compression negotiation
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29865
diff
changeset
|
109 ``Content-Length`` header is typically issued, but not required. |
29860
b42c26b0a785
help: document wire protocol transport protocols
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29859
diff
changeset
|
110 |
30760
753b9d43ca81
internals: document compression negotiation
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29865
diff
changeset
|
111 A command returning a ``stream`` response issues a |
753b9d43ca81
internals: document compression negotiation
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29865
diff
changeset
|
112 ``application/mercurial-0.*`` media type and the HTTP response is typically |
29860
b42c26b0a785
help: document wire protocol transport protocols
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29859
diff
changeset
|
113 using *chunked transfer* (``Transfer-Encoding: chunked``). |
b42c26b0a785
help: document wire protocol transport protocols
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29859
diff
changeset
|
114 |
b42c26b0a785
help: document wire protocol transport protocols
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29859
diff
changeset
|
115 SSH Transport |
b42c26b0a785
help: document wire protocol transport protocols
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29859
diff
changeset
|
116 ============= |
b42c26b0a785
help: document wire protocol transport protocols
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29859
diff
changeset
|
117 |
b42c26b0a785
help: document wire protocol transport protocols
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29859
diff
changeset
|
118 The SSH transport is a custom text-based protocol suitable for use over any |
b42c26b0a785
help: document wire protocol transport protocols
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29859
diff
changeset
|
119 bi-directional stream transport. It is most commonly used with SSH. |
b42c26b0a785
help: document wire protocol transport protocols
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29859
diff
changeset
|
120 |
b42c26b0a785
help: document wire protocol transport protocols
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29859
diff
changeset
|
121 A SSH transport server can be started with ``hg serve --stdio``. The stdin, |
b42c26b0a785
help: document wire protocol transport protocols
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29859
diff
changeset
|
122 stderr, and stdout file descriptors of the started process are used to exchange |
b42c26b0a785
help: document wire protocol transport protocols
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29859
diff
changeset
|
123 data. When Mercurial connects to a remote server over SSH, it actually starts |
b42c26b0a785
help: document wire protocol transport protocols
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29859
diff
changeset
|
124 a ``hg serve --stdio`` process on the remote server. |
b42c26b0a785
help: document wire protocol transport protocols
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29859
diff
changeset
|
125 |
b42c26b0a785
help: document wire protocol transport protocols
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29859
diff
changeset
|
126 Commands are issued by sending the command name followed by a trailing newline |
b42c26b0a785
help: document wire protocol transport protocols
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29859
diff
changeset
|
127 ``\n`` to the server. e.g. ``capabilities\n``. |
b42c26b0a785
help: document wire protocol transport protocols
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29859
diff
changeset
|
128 |
b42c26b0a785
help: document wire protocol transport protocols
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29859
diff
changeset
|
129 Command arguments are sent in the following format:: |
b42c26b0a785
help: document wire protocol transport protocols
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29859
diff
changeset
|
130 |
b42c26b0a785
help: document wire protocol transport protocols
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29859
diff
changeset
|
131 <argument> <length>\n<value> |
b42c26b0a785
help: document wire protocol transport protocols
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29859
diff
changeset
|
132 |
b42c26b0a785
help: document wire protocol transport protocols
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29859
diff
changeset
|
133 That is, the argument string name followed by a space followed by the |
b42c26b0a785
help: document wire protocol transport protocols
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29859
diff
changeset
|
134 integer length of the value (expressed as a string) followed by a newline |
b42c26b0a785
help: document wire protocol transport protocols
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29859
diff
changeset
|
135 (``\n``) followed by the raw argument value. |
b42c26b0a785
help: document wire protocol transport protocols
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29859
diff
changeset
|
136 |
b42c26b0a785
help: document wire protocol transport protocols
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29859
diff
changeset
|
137 Dictionary arguments are encoded differently:: |
b42c26b0a785
help: document wire protocol transport protocols
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29859
diff
changeset
|
138 |
b42c26b0a785
help: document wire protocol transport protocols
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29859
diff
changeset
|
139 <argument> <# elements>\n |
b42c26b0a785
help: document wire protocol transport protocols
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29859
diff
changeset
|
140 <key1> <length1>\n<value1> |
b42c26b0a785
help: document wire protocol transport protocols
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29859
diff
changeset
|
141 <key2> <length2>\n<value2> |
b42c26b0a785
help: document wire protocol transport protocols
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29859
diff
changeset
|
142 ... |
b42c26b0a785
help: document wire protocol transport protocols
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29859
diff
changeset
|
143 |
b42c26b0a785
help: document wire protocol transport protocols
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29859
diff
changeset
|
144 Non-argument data is sent immediately after the final argument value. It is |
b42c26b0a785
help: document wire protocol transport protocols
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29859
diff
changeset
|
145 encoded in chunks:: |
b42c26b0a785
help: document wire protocol transport protocols
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29859
diff
changeset
|
146 |
b42c26b0a785
help: document wire protocol transport protocols
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29859
diff
changeset
|
147 <length>\n<data> |
b42c26b0a785
help: document wire protocol transport protocols
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29859
diff
changeset
|
148 |
b42c26b0a785
help: document wire protocol transport protocols
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29859
diff
changeset
|
149 Each command declares a list of supported arguments and their types. If a |
b42c26b0a785
help: document wire protocol transport protocols
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29859
diff
changeset
|
150 client sends an unknown argument to the server, the server should abort |
b42c26b0a785
help: document wire protocol transport protocols
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29859
diff
changeset
|
151 immediately. The special argument ``*`` in a command's definition indicates |
b42c26b0a785
help: document wire protocol transport protocols
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29859
diff
changeset
|
152 that all argument names are allowed. |
b42c26b0a785
help: document wire protocol transport protocols
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29859
diff
changeset
|
153 |
b42c26b0a785
help: document wire protocol transport protocols
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29859
diff
changeset
|
154 The definition of supported arguments and types is initially made when a |
b42c26b0a785
help: document wire protocol transport protocols
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29859
diff
changeset
|
155 new command is implemented. The client and server must initially independently |
b42c26b0a785
help: document wire protocol transport protocols
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29859
diff
changeset
|
156 agree on the arguments and their types. This initial set of arguments can be |
b42c26b0a785
help: document wire protocol transport protocols
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29859
diff
changeset
|
157 supplemented through the presence of *capabilities* advertised by the server. |
b42c26b0a785
help: document wire protocol transport protocols
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29859
diff
changeset
|
158 |
b42c26b0a785
help: document wire protocol transport protocols
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29859
diff
changeset
|
159 Each command has a defined expected response type. |
b42c26b0a785
help: document wire protocol transport protocols
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29859
diff
changeset
|
160 |
b42c26b0a785
help: document wire protocol transport protocols
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29859
diff
changeset
|
161 A ``string`` response type is a length framed value. The response consists of |
b42c26b0a785
help: document wire protocol transport protocols
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29859
diff
changeset
|
162 the string encoded integer length of a value followed by a newline (``\n``) |
b42c26b0a785
help: document wire protocol transport protocols
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29859
diff
changeset
|
163 followed by the value. Empty values are allowed (and are represented as |
b42c26b0a785
help: document wire protocol transport protocols
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29859
diff
changeset
|
164 ``0\n``). |
b42c26b0a785
help: document wire protocol transport protocols
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29859
diff
changeset
|
165 |
b42c26b0a785
help: document wire protocol transport protocols
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29859
diff
changeset
|
166 A ``stream`` response type consists of raw bytes of data. There is no framing. |
b42c26b0a785
help: document wire protocol transport protocols
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29859
diff
changeset
|
167 |
b42c26b0a785
help: document wire protocol transport protocols
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29859
diff
changeset
|
168 A generic error response type is also supported. It consists of a an error |
b42c26b0a785
help: document wire protocol transport protocols
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29859
diff
changeset
|
169 message written to ``stderr`` followed by ``\n-\n``. In addition, ``\n`` is |
b42c26b0a785
help: document wire protocol transport protocols
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29859
diff
changeset
|
170 written to ``stdout``. |
b42c26b0a785
help: document wire protocol transport protocols
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29859
diff
changeset
|
171 |
b42c26b0a785
help: document wire protocol transport protocols
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29859
diff
changeset
|
172 If the server receives an unknown command, it will send an empty ``string`` |
b42c26b0a785
help: document wire protocol transport protocols
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29859
diff
changeset
|
173 response. |
b42c26b0a785
help: document wire protocol transport protocols
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29859
diff
changeset
|
174 |
b42c26b0a785
help: document wire protocol transport protocols
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29859
diff
changeset
|
175 The server terminates if it receives an empty command (a ``\n`` character). |
29863
2435ba6c82e6
help: document wire protocol capabilities
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29860
diff
changeset
|
176 |
2435ba6c82e6
help: document wire protocol capabilities
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29860
diff
changeset
|
177 Capabilities |
2435ba6c82e6
help: document wire protocol capabilities
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29860
diff
changeset
|
178 ============ |
2435ba6c82e6
help: document wire protocol capabilities
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29860
diff
changeset
|
179 |
2435ba6c82e6
help: document wire protocol capabilities
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29860
diff
changeset
|
180 Servers advertise supported wire protocol features. This allows clients to |
2435ba6c82e6
help: document wire protocol capabilities
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29860
diff
changeset
|
181 probe for server features before blindly calling a command or passing a |
2435ba6c82e6
help: document wire protocol capabilities
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29860
diff
changeset
|
182 specific argument. |
2435ba6c82e6
help: document wire protocol capabilities
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29860
diff
changeset
|
183 |
2435ba6c82e6
help: document wire protocol capabilities
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29860
diff
changeset
|
184 The server's features are exposed via a *capabilities* string. This is a |
2435ba6c82e6
help: document wire protocol capabilities
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29860
diff
changeset
|
185 space-delimited string of tokens/features. Some features are single words |
2435ba6c82e6
help: document wire protocol capabilities
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29860
diff
changeset
|
186 like ``lookup`` or ``batch``. Others are complicated key-value pairs |
2435ba6c82e6
help: document wire protocol capabilities
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29860
diff
changeset
|
187 advertising sub-features. e.g. ``httpheader=2048``. When complex, non-word |
2435ba6c82e6
help: document wire protocol capabilities
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29860
diff
changeset
|
188 values are used, each feature name can define its own encoding of sub-values. |
2435ba6c82e6
help: document wire protocol capabilities
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29860
diff
changeset
|
189 Comma-delimited and ``x-www-form-urlencoded`` values are common. |
2435ba6c82e6
help: document wire protocol capabilities
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29860
diff
changeset
|
190 |
2435ba6c82e6
help: document wire protocol capabilities
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29860
diff
changeset
|
191 The following document capabilities defined by the canonical Mercurial server |
2435ba6c82e6
help: document wire protocol capabilities
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29860
diff
changeset
|
192 implementation. |
2435ba6c82e6
help: document wire protocol capabilities
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29860
diff
changeset
|
193 |
2435ba6c82e6
help: document wire protocol capabilities
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29860
diff
changeset
|
194 batch |
2435ba6c82e6
help: document wire protocol capabilities
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29860
diff
changeset
|
195 ----- |
2435ba6c82e6
help: document wire protocol capabilities
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29860
diff
changeset
|
196 |
2435ba6c82e6
help: document wire protocol capabilities
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29860
diff
changeset
|
197 Whether the server supports the ``batch`` command. |
2435ba6c82e6
help: document wire protocol capabilities
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29860
diff
changeset
|
198 |
2435ba6c82e6
help: document wire protocol capabilities
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29860
diff
changeset
|
199 This capability/command was introduced in Mercurial 1.9 (released July 2011). |
2435ba6c82e6
help: document wire protocol capabilities
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29860
diff
changeset
|
200 |
2435ba6c82e6
help: document wire protocol capabilities
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29860
diff
changeset
|
201 branchmap |
2435ba6c82e6
help: document wire protocol capabilities
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29860
diff
changeset
|
202 --------- |
2435ba6c82e6
help: document wire protocol capabilities
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29860
diff
changeset
|
203 |
2435ba6c82e6
help: document wire protocol capabilities
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29860
diff
changeset
|
204 Whether the server supports the ``branchmap`` command. |
2435ba6c82e6
help: document wire protocol capabilities
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29860
diff
changeset
|
205 |
2435ba6c82e6
help: document wire protocol capabilities
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29860
diff
changeset
|
206 This capability/command was introduced in Mercurial 1.3 (released July 2009). |
2435ba6c82e6
help: document wire protocol capabilities
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29860
diff
changeset
|
207 |
2435ba6c82e6
help: document wire protocol capabilities
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29860
diff
changeset
|
208 bundle2-exp |
2435ba6c82e6
help: document wire protocol capabilities
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29860
diff
changeset
|
209 ----------- |
2435ba6c82e6
help: document wire protocol capabilities
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29860
diff
changeset
|
210 |
2435ba6c82e6
help: document wire protocol capabilities
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29860
diff
changeset
|
211 Precursor to ``bundle2`` capability that was used before bundle2 was a |
2435ba6c82e6
help: document wire protocol capabilities
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29860
diff
changeset
|
212 stable feature. |
2435ba6c82e6
help: document wire protocol capabilities
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29860
diff
changeset
|
213 |
2435ba6c82e6
help: document wire protocol capabilities
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29860
diff
changeset
|
214 This capability was introduced in Mercurial 3.0 behind an experimental |
2435ba6c82e6
help: document wire protocol capabilities
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29860
diff
changeset
|
215 flag. This capability should not be observed in the wild. |
2435ba6c82e6
help: document wire protocol capabilities
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29860
diff
changeset
|
216 |
2435ba6c82e6
help: document wire protocol capabilities
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29860
diff
changeset
|
217 bundle2 |
2435ba6c82e6
help: document wire protocol capabilities
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29860
diff
changeset
|
218 ------- |
2435ba6c82e6
help: document wire protocol capabilities
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29860
diff
changeset
|
219 |
2435ba6c82e6
help: document wire protocol capabilities
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29860
diff
changeset
|
220 Indicates whether the server supports the ``bundle2`` data exchange format. |
2435ba6c82e6
help: document wire protocol capabilities
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29860
diff
changeset
|
221 |
2435ba6c82e6
help: document wire protocol capabilities
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29860
diff
changeset
|
222 The value of the capability is a URL quoted, newline (``\n``) delimited |
2435ba6c82e6
help: document wire protocol capabilities
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29860
diff
changeset
|
223 list of keys or key-value pairs. |
2435ba6c82e6
help: document wire protocol capabilities
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29860
diff
changeset
|
224 |
2435ba6c82e6
help: document wire protocol capabilities
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29860
diff
changeset
|
225 A key is simply a URL encoded string. |
2435ba6c82e6
help: document wire protocol capabilities
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29860
diff
changeset
|
226 |
2435ba6c82e6
help: document wire protocol capabilities
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29860
diff
changeset
|
227 A key-value pair is a URL encoded key separated from a URL encoded value by |
2435ba6c82e6
help: document wire protocol capabilities
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29860
diff
changeset
|
228 an ``=``. If the value is a list, elements are delimited by a ``,`` after |
2435ba6c82e6
help: document wire protocol capabilities
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29860
diff
changeset
|
229 URL encoding. |
2435ba6c82e6
help: document wire protocol capabilities
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29860
diff
changeset
|
230 |
2435ba6c82e6
help: document wire protocol capabilities
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29860
diff
changeset
|
231 For example, say we have the values:: |
2435ba6c82e6
help: document wire protocol capabilities
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29860
diff
changeset
|
232 |
2435ba6c82e6
help: document wire protocol capabilities
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29860
diff
changeset
|
233 {'HG20': [], 'changegroup': ['01', '02'], 'digests': ['sha1', 'sha512']} |
2435ba6c82e6
help: document wire protocol capabilities
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29860
diff
changeset
|
234 |
2435ba6c82e6
help: document wire protocol capabilities
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29860
diff
changeset
|
235 We would first construct a string:: |
2435ba6c82e6
help: document wire protocol capabilities
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29860
diff
changeset
|
236 |
2435ba6c82e6
help: document wire protocol capabilities
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29860
diff
changeset
|
237 HG20\nchangegroup=01,02\ndigests=sha1,sha512 |
2435ba6c82e6
help: document wire protocol capabilities
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29860
diff
changeset
|
238 |
2435ba6c82e6
help: document wire protocol capabilities
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29860
diff
changeset
|
239 We would then URL quote this string:: |
2435ba6c82e6
help: document wire protocol capabilities
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29860
diff
changeset
|
240 |
2435ba6c82e6
help: document wire protocol capabilities
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29860
diff
changeset
|
241 HG20%0Achangegroup%3D01%2C02%0Adigests%3Dsha1%2Csha512 |
2435ba6c82e6
help: document wire protocol capabilities
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29860
diff
changeset
|
242 |
2435ba6c82e6
help: document wire protocol capabilities
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29860
diff
changeset
|
243 This capability was introduced in Mercurial 3.4 (released May 2015). |
2435ba6c82e6
help: document wire protocol capabilities
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29860
diff
changeset
|
244 |
2435ba6c82e6
help: document wire protocol capabilities
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29860
diff
changeset
|
245 changegroupsubset |
2435ba6c82e6
help: document wire protocol capabilities
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29860
diff
changeset
|
246 ----------------- |
2435ba6c82e6
help: document wire protocol capabilities
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29860
diff
changeset
|
247 |
2435ba6c82e6
help: document wire protocol capabilities
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29860
diff
changeset
|
248 Whether the server supports the ``changegroupsubset`` command. |
2435ba6c82e6
help: document wire protocol capabilities
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29860
diff
changeset
|
249 |
2435ba6c82e6
help: document wire protocol capabilities
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29860
diff
changeset
|
250 This capability was introduced in Mercurial 0.9.2 (released December |
2435ba6c82e6
help: document wire protocol capabilities
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29860
diff
changeset
|
251 2006). |
2435ba6c82e6
help: document wire protocol capabilities
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29860
diff
changeset
|
252 |
2435ba6c82e6
help: document wire protocol capabilities
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29860
diff
changeset
|
253 This capability was introduced at the same time as the ``lookup`` |
2435ba6c82e6
help: document wire protocol capabilities
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29860
diff
changeset
|
254 capability/command. |
2435ba6c82e6
help: document wire protocol capabilities
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29860
diff
changeset
|
255 |
30760
753b9d43ca81
internals: document compression negotiation
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29865
diff
changeset
|
256 compression |
753b9d43ca81
internals: document compression negotiation
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29865
diff
changeset
|
257 ----------- |
753b9d43ca81
internals: document compression negotiation
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29865
diff
changeset
|
258 |
753b9d43ca81
internals: document compression negotiation
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29865
diff
changeset
|
259 Declares support for negotiating compression formats. |
753b9d43ca81
internals: document compression negotiation
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29865
diff
changeset
|
260 |
753b9d43ca81
internals: document compression negotiation
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29865
diff
changeset
|
261 Presence of this capability indicates the server supports dynamic selection |
753b9d43ca81
internals: document compression negotiation
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29865
diff
changeset
|
262 of compression formats based on the client request. |
753b9d43ca81
internals: document compression negotiation
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29865
diff
changeset
|
263 |
753b9d43ca81
internals: document compression negotiation
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29865
diff
changeset
|
264 Servers advertising this capability are required to support the |
753b9d43ca81
internals: document compression negotiation
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29865
diff
changeset
|
265 ``application/mercurial-0.2`` media type in response to commands returning |
753b9d43ca81
internals: document compression negotiation
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29865
diff
changeset
|
266 streams. Servers may support this media type on any command. |
753b9d43ca81
internals: document compression negotiation
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29865
diff
changeset
|
267 |
753b9d43ca81
internals: document compression negotiation
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29865
diff
changeset
|
268 The value of the capability is a comma-delimited list of strings declaring |
753b9d43ca81
internals: document compression negotiation
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29865
diff
changeset
|
269 supported compression formats. The order of the compression formats is in |
753b9d43ca81
internals: document compression negotiation
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29865
diff
changeset
|
270 server-preferred order, most preferred first. |
753b9d43ca81
internals: document compression negotiation
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29865
diff
changeset
|
271 |
30761
7283719e2bfd
util: declare wire protocol support of compression engines
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30760
diff
changeset
|
272 The identifiers used by the official Mercurial distribution are: |
7283719e2bfd
util: declare wire protocol support of compression engines
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30760
diff
changeset
|
273 |
7283719e2bfd
util: declare wire protocol support of compression engines
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30760
diff
changeset
|
274 bzip2 |
7283719e2bfd
util: declare wire protocol support of compression engines
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30760
diff
changeset
|
275 bzip2 |
7283719e2bfd
util: declare wire protocol support of compression engines
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30760
diff
changeset
|
276 none |
7283719e2bfd
util: declare wire protocol support of compression engines
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30760
diff
changeset
|
277 uncompressed / raw data |
7283719e2bfd
util: declare wire protocol support of compression engines
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30760
diff
changeset
|
278 zlib |
7283719e2bfd
util: declare wire protocol support of compression engines
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30760
diff
changeset
|
279 zlib (no gzip header) |
7283719e2bfd
util: declare wire protocol support of compression engines
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30760
diff
changeset
|
280 zstd |
7283719e2bfd
util: declare wire protocol support of compression engines
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30760
diff
changeset
|
281 zstd |
7283719e2bfd
util: declare wire protocol support of compression engines
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30760
diff
changeset
|
282 |
30760
753b9d43ca81
internals: document compression negotiation
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29865
diff
changeset
|
283 This capability was introduced in Mercurial 4.1 (released February 2017). |
753b9d43ca81
internals: document compression negotiation
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29865
diff
changeset
|
284 |
29863
2435ba6c82e6
help: document wire protocol capabilities
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29860
diff
changeset
|
285 getbundle |
2435ba6c82e6
help: document wire protocol capabilities
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29860
diff
changeset
|
286 --------- |
2435ba6c82e6
help: document wire protocol capabilities
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29860
diff
changeset
|
287 |
2435ba6c82e6
help: document wire protocol capabilities
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29860
diff
changeset
|
288 Whether the server supports the ``getbundle`` command. |
2435ba6c82e6
help: document wire protocol capabilities
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29860
diff
changeset
|
289 |
2435ba6c82e6
help: document wire protocol capabilities
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29860
diff
changeset
|
290 This capability was introduced in Mercurial 1.9 (released July 2011). |
2435ba6c82e6
help: document wire protocol capabilities
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29860
diff
changeset
|
291 |
2435ba6c82e6
help: document wire protocol capabilities
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29860
diff
changeset
|
292 httpheader |
2435ba6c82e6
help: document wire protocol capabilities
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29860
diff
changeset
|
293 ---------- |
2435ba6c82e6
help: document wire protocol capabilities
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29860
diff
changeset
|
294 |
2435ba6c82e6
help: document wire protocol capabilities
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29860
diff
changeset
|
295 Whether the server supports receiving command arguments via HTTP request |
2435ba6c82e6
help: document wire protocol capabilities
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29860
diff
changeset
|
296 headers. |
2435ba6c82e6
help: document wire protocol capabilities
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29860
diff
changeset
|
297 |
2435ba6c82e6
help: document wire protocol capabilities
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29860
diff
changeset
|
298 The value of the capability is an integer describing the max header |
2435ba6c82e6
help: document wire protocol capabilities
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29860
diff
changeset
|
299 length that clients should send. Clients should ignore any content after a |
2435ba6c82e6
help: document wire protocol capabilities
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29860
diff
changeset
|
300 comma in the value, as this is reserved for future use. |
2435ba6c82e6
help: document wire protocol capabilities
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29860
diff
changeset
|
301 |
2435ba6c82e6
help: document wire protocol capabilities
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29860
diff
changeset
|
302 This capability was introduced in Mercurial 1.9 (released July 2011). |
2435ba6c82e6
help: document wire protocol capabilities
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29860
diff
changeset
|
303 |
30760
753b9d43ca81
internals: document compression negotiation
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29865
diff
changeset
|
304 httpmediatype |
753b9d43ca81
internals: document compression negotiation
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29865
diff
changeset
|
305 ------------- |
753b9d43ca81
internals: document compression negotiation
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29865
diff
changeset
|
306 |
753b9d43ca81
internals: document compression negotiation
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29865
diff
changeset
|
307 Indicates which HTTP media types (``Content-Type`` header) the server is |
753b9d43ca81
internals: document compression negotiation
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29865
diff
changeset
|
308 capable of receiving and sending. |
753b9d43ca81
internals: document compression negotiation
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29865
diff
changeset
|
309 |
753b9d43ca81
internals: document compression negotiation
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29865
diff
changeset
|
310 The value of the capability is a comma-delimited list of strings identifying |
753b9d43ca81
internals: document compression negotiation
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29865
diff
changeset
|
311 support for media type and transmission direction. The following strings may |
753b9d43ca81
internals: document compression negotiation
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29865
diff
changeset
|
312 be present: |
753b9d43ca81
internals: document compression negotiation
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29865
diff
changeset
|
313 |
753b9d43ca81
internals: document compression negotiation
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29865
diff
changeset
|
314 0.1rx |
753b9d43ca81
internals: document compression negotiation
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29865
diff
changeset
|
315 Indicates server support for receiving ``application/mercurial-0.1`` media |
753b9d43ca81
internals: document compression negotiation
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29865
diff
changeset
|
316 types. |
753b9d43ca81
internals: document compression negotiation
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29865
diff
changeset
|
317 |
753b9d43ca81
internals: document compression negotiation
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29865
diff
changeset
|
318 0.1tx |
753b9d43ca81
internals: document compression negotiation
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29865
diff
changeset
|
319 Indicates server support for sending ``application/mercurial-0.1`` media |
753b9d43ca81
internals: document compression negotiation
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29865
diff
changeset
|
320 types. |
753b9d43ca81
internals: document compression negotiation
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29865
diff
changeset
|
321 |
753b9d43ca81
internals: document compression negotiation
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29865
diff
changeset
|
322 0.2rx |
753b9d43ca81
internals: document compression negotiation
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29865
diff
changeset
|
323 Indicates server support for receiving ``application/mercurial-0.2`` media |
753b9d43ca81
internals: document compression negotiation
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29865
diff
changeset
|
324 types. |
753b9d43ca81
internals: document compression negotiation
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29865
diff
changeset
|
325 |
753b9d43ca81
internals: document compression negotiation
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29865
diff
changeset
|
326 0.2tx |
753b9d43ca81
internals: document compression negotiation
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29865
diff
changeset
|
327 Indicates server support for sending ``application/mercurial-0.2`` media |
753b9d43ca81
internals: document compression negotiation
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29865
diff
changeset
|
328 types. |
753b9d43ca81
internals: document compression negotiation
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29865
diff
changeset
|
329 |
753b9d43ca81
internals: document compression negotiation
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29865
diff
changeset
|
330 minrx=X |
753b9d43ca81
internals: document compression negotiation
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29865
diff
changeset
|
331 Minimum media type version the server is capable of receiving. Value is a |
753b9d43ca81
internals: document compression negotiation
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29865
diff
changeset
|
332 string like ``0.2``. |
753b9d43ca81
internals: document compression negotiation
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29865
diff
changeset
|
333 |
753b9d43ca81
internals: document compression negotiation
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29865
diff
changeset
|
334 This capability can be used by servers to limit connections from legacy |
753b9d43ca81
internals: document compression negotiation
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29865
diff
changeset
|
335 clients not using the latest supported media type. However, only clients |
753b9d43ca81
internals: document compression negotiation
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29865
diff
changeset
|
336 with knowledge of this capability will know to consult this value. This |
753b9d43ca81
internals: document compression negotiation
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29865
diff
changeset
|
337 capability is present so the client may issue a more user-friendly error |
753b9d43ca81
internals: document compression negotiation
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29865
diff
changeset
|
338 when the server has locked out a legacy client. |
753b9d43ca81
internals: document compression negotiation
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29865
diff
changeset
|
339 |
753b9d43ca81
internals: document compression negotiation
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29865
diff
changeset
|
340 mintx=X |
753b9d43ca81
internals: document compression negotiation
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29865
diff
changeset
|
341 Minimum media type version the server is capable of sending. Value is a |
753b9d43ca81
internals: document compression negotiation
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29865
diff
changeset
|
342 string like ``0.1``. |
753b9d43ca81
internals: document compression negotiation
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29865
diff
changeset
|
343 |
753b9d43ca81
internals: document compression negotiation
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29865
diff
changeset
|
344 Servers advertising support for the ``application/mercurial-0.2`` media type |
753b9d43ca81
internals: document compression negotiation
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29865
diff
changeset
|
345 should also advertise the ``compression`` capability. |
753b9d43ca81
internals: document compression negotiation
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29865
diff
changeset
|
346 |
753b9d43ca81
internals: document compression negotiation
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29865
diff
changeset
|
347 This capability was introduced in Mercurial 4.1 (released February 2017). |
753b9d43ca81
internals: document compression negotiation
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29865
diff
changeset
|
348 |
29863
2435ba6c82e6
help: document wire protocol capabilities
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29860
diff
changeset
|
349 httppostargs |
2435ba6c82e6
help: document wire protocol capabilities
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29860
diff
changeset
|
350 ------------ |
2435ba6c82e6
help: document wire protocol capabilities
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29860
diff
changeset
|
351 |
2435ba6c82e6
help: document wire protocol capabilities
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29860
diff
changeset
|
352 **Experimental** |
2435ba6c82e6
help: document wire protocol capabilities
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29860
diff
changeset
|
353 |
2435ba6c82e6
help: document wire protocol capabilities
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29860
diff
changeset
|
354 Indicates that the server supports and prefers clients send command arguments |
2435ba6c82e6
help: document wire protocol capabilities
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29860
diff
changeset
|
355 via a HTTP POST request as part of the request body. |
2435ba6c82e6
help: document wire protocol capabilities
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29860
diff
changeset
|
356 |
2435ba6c82e6
help: document wire protocol capabilities
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29860
diff
changeset
|
357 This capability was introduced in Mercurial 3.8 (released May 2016). |
2435ba6c82e6
help: document wire protocol capabilities
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29860
diff
changeset
|
358 |
2435ba6c82e6
help: document wire protocol capabilities
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29860
diff
changeset
|
359 known |
2435ba6c82e6
help: document wire protocol capabilities
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29860
diff
changeset
|
360 ----- |
2435ba6c82e6
help: document wire protocol capabilities
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29860
diff
changeset
|
361 |
2435ba6c82e6
help: document wire protocol capabilities
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29860
diff
changeset
|
362 Whether the server supports the ``known`` command. |
2435ba6c82e6
help: document wire protocol capabilities
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29860
diff
changeset
|
363 |
2435ba6c82e6
help: document wire protocol capabilities
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29860
diff
changeset
|
364 This capability/command was introduced in Mercurial 1.9 (released July 2011). |
2435ba6c82e6
help: document wire protocol capabilities
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29860
diff
changeset
|
365 |
2435ba6c82e6
help: document wire protocol capabilities
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29860
diff
changeset
|
366 lookup |
2435ba6c82e6
help: document wire protocol capabilities
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29860
diff
changeset
|
367 ------ |
2435ba6c82e6
help: document wire protocol capabilities
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29860
diff
changeset
|
368 |
2435ba6c82e6
help: document wire protocol capabilities
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29860
diff
changeset
|
369 Whether the server supports the ``lookup`` command. |
2435ba6c82e6
help: document wire protocol capabilities
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29860
diff
changeset
|
370 |
2435ba6c82e6
help: document wire protocol capabilities
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29860
diff
changeset
|
371 This capability was introduced in Mercurial 0.9.2 (released December |
2435ba6c82e6
help: document wire protocol capabilities
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29860
diff
changeset
|
372 2006). |
2435ba6c82e6
help: document wire protocol capabilities
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29860
diff
changeset
|
373 |
2435ba6c82e6
help: document wire protocol capabilities
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29860
diff
changeset
|
374 This capability was introduced at the same time as the ``changegroupsubset`` |
2435ba6c82e6
help: document wire protocol capabilities
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29860
diff
changeset
|
375 capability/command. |
2435ba6c82e6
help: document wire protocol capabilities
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29860
diff
changeset
|
376 |
2435ba6c82e6
help: document wire protocol capabilities
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29860
diff
changeset
|
377 pushkey |
2435ba6c82e6
help: document wire protocol capabilities
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29860
diff
changeset
|
378 ------- |
2435ba6c82e6
help: document wire protocol capabilities
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29860
diff
changeset
|
379 |
2435ba6c82e6
help: document wire protocol capabilities
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29860
diff
changeset
|
380 Whether the server supports the ``pushkey`` and ``listkeys`` commands. |
2435ba6c82e6
help: document wire protocol capabilities
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29860
diff
changeset
|
381 |
2435ba6c82e6
help: document wire protocol capabilities
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29860
diff
changeset
|
382 This capability was introduced in Mercurial 1.6 (released July 2010). |
2435ba6c82e6
help: document wire protocol capabilities
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29860
diff
changeset
|
383 |
2435ba6c82e6
help: document wire protocol capabilities
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29860
diff
changeset
|
384 standardbundle |
2435ba6c82e6
help: document wire protocol capabilities
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29860
diff
changeset
|
385 -------------- |
2435ba6c82e6
help: document wire protocol capabilities
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29860
diff
changeset
|
386 |
2435ba6c82e6
help: document wire protocol capabilities
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29860
diff
changeset
|
387 **Unsupported** |
2435ba6c82e6
help: document wire protocol capabilities
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29860
diff
changeset
|
388 |
2435ba6c82e6
help: document wire protocol capabilities
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29860
diff
changeset
|
389 This capability was introduced during the Mercurial 0.9.2 development cycle in |
2435ba6c82e6
help: document wire protocol capabilities
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29860
diff
changeset
|
390 2006. It was never present in a release, as it was replaced by the ``unbundle`` |
2435ba6c82e6
help: document wire protocol capabilities
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29860
diff
changeset
|
391 capability. This capability should not be encountered in the wild. |
2435ba6c82e6
help: document wire protocol capabilities
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29860
diff
changeset
|
392 |
2435ba6c82e6
help: document wire protocol capabilities
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29860
diff
changeset
|
393 stream-preferred |
2435ba6c82e6
help: document wire protocol capabilities
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29860
diff
changeset
|
394 ---------------- |
2435ba6c82e6
help: document wire protocol capabilities
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29860
diff
changeset
|
395 |
2435ba6c82e6
help: document wire protocol capabilities
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29860
diff
changeset
|
396 If present the server prefers that clients clone using the streaming clone |
2435ba6c82e6
help: document wire protocol capabilities
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29860
diff
changeset
|
397 protocol (``hg clone --uncompressed``) rather than the standard |
2435ba6c82e6
help: document wire protocol capabilities
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29860
diff
changeset
|
398 changegroup/bundle based protocol. |
2435ba6c82e6
help: document wire protocol capabilities
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29860
diff
changeset
|
399 |
2435ba6c82e6
help: document wire protocol capabilities
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29860
diff
changeset
|
400 This capability was introduced in Mercurial 2.2 (released May 2012). |
2435ba6c82e6
help: document wire protocol capabilities
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29860
diff
changeset
|
401 |
2435ba6c82e6
help: document wire protocol capabilities
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29860
diff
changeset
|
402 streamreqs |
2435ba6c82e6
help: document wire protocol capabilities
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29860
diff
changeset
|
403 ---------- |
2435ba6c82e6
help: document wire protocol capabilities
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29860
diff
changeset
|
404 |
2435ba6c82e6
help: document wire protocol capabilities
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29860
diff
changeset
|
405 Indicates whether the server supports *streaming clones* and the *requirements* |
2435ba6c82e6
help: document wire protocol capabilities
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29860
diff
changeset
|
406 that clients must support to receive it. |
2435ba6c82e6
help: document wire protocol capabilities
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29860
diff
changeset
|
407 |
2435ba6c82e6
help: document wire protocol capabilities
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29860
diff
changeset
|
408 If present, the server supports the ``stream_out`` command, which transmits |
2435ba6c82e6
help: document wire protocol capabilities
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29860
diff
changeset
|
409 raw revlogs from the repository instead of changegroups. This provides a faster |
2435ba6c82e6
help: document wire protocol capabilities
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29860
diff
changeset
|
410 cloning mechanism at the expense of more bandwidth used. |
2435ba6c82e6
help: document wire protocol capabilities
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29860
diff
changeset
|
411 |
2435ba6c82e6
help: document wire protocol capabilities
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29860
diff
changeset
|
412 The value of this capability is a comma-delimited list of repo format |
2435ba6c82e6
help: document wire protocol capabilities
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29860
diff
changeset
|
413 *requirements*. These are requirements that impact the reading of data in |
2435ba6c82e6
help: document wire protocol capabilities
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29860
diff
changeset
|
414 the ``.hg/store`` directory. An example value is |
2435ba6c82e6
help: document wire protocol capabilities
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29860
diff
changeset
|
415 ``streamreqs=generaldelta,revlogv1`` indicating the server repo requires |
2435ba6c82e6
help: document wire protocol capabilities
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29860
diff
changeset
|
416 the ``revlogv1`` and ``generaldelta`` requirements. |
2435ba6c82e6
help: document wire protocol capabilities
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29860
diff
changeset
|
417 |
2435ba6c82e6
help: document wire protocol capabilities
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29860
diff
changeset
|
418 If the only format requirement is ``revlogv1``, the server may expose the |
2435ba6c82e6
help: document wire protocol capabilities
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29860
diff
changeset
|
419 ``stream`` capability instead of the ``streamreqs`` capability. |
2435ba6c82e6
help: document wire protocol capabilities
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29860
diff
changeset
|
420 |
2435ba6c82e6
help: document wire protocol capabilities
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29860
diff
changeset
|
421 This capability was introduced in Mercurial 1.7 (released November 2010). |
2435ba6c82e6
help: document wire protocol capabilities
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29860
diff
changeset
|
422 |
2435ba6c82e6
help: document wire protocol capabilities
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29860
diff
changeset
|
423 stream |
2435ba6c82e6
help: document wire protocol capabilities
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29860
diff
changeset
|
424 ------ |
2435ba6c82e6
help: document wire protocol capabilities
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29860
diff
changeset
|
425 |
2435ba6c82e6
help: document wire protocol capabilities
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29860
diff
changeset
|
426 Whether the server supports *streaming clones* from ``revlogv1`` repos. |
2435ba6c82e6
help: document wire protocol capabilities
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29860
diff
changeset
|
427 |
2435ba6c82e6
help: document wire protocol capabilities
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29860
diff
changeset
|
428 If present, the server supports the ``stream_out`` command, which transmits |
2435ba6c82e6
help: document wire protocol capabilities
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29860
diff
changeset
|
429 raw revlogs from the repository instead of changegroups. This provides a faster |
2435ba6c82e6
help: document wire protocol capabilities
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29860
diff
changeset
|
430 cloning mechanism at the expense of more bandwidth used. |
2435ba6c82e6
help: document wire protocol capabilities
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29860
diff
changeset
|
431 |
2435ba6c82e6
help: document wire protocol capabilities
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29860
diff
changeset
|
432 This capability was introduced in Mercurial 0.9.1 (released July 2006). |
2435ba6c82e6
help: document wire protocol capabilities
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29860
diff
changeset
|
433 |
2435ba6c82e6
help: document wire protocol capabilities
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29860
diff
changeset
|
434 When initially introduced, the value of the capability was the numeric |
2435ba6c82e6
help: document wire protocol capabilities
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29860
diff
changeset
|
435 revlog revision. e.g. ``stream=1``. This indicates the changegroup is using |
2435ba6c82e6
help: document wire protocol capabilities
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29860
diff
changeset
|
436 ``revlogv1``. This simple integer value wasn't powerful enough, so the |
2435ba6c82e6
help: document wire protocol capabilities
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29860
diff
changeset
|
437 ``streamreqs`` capability was invented to handle cases where the repo |
2435ba6c82e6
help: document wire protocol capabilities
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29860
diff
changeset
|
438 requirements have more than just ``revlogv1``. Newer servers omit the |
2435ba6c82e6
help: document wire protocol capabilities
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29860
diff
changeset
|
439 ``=1`` since it was the only value supported and the value of ``1`` can |
2435ba6c82e6
help: document wire protocol capabilities
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29860
diff
changeset
|
440 be implied by clients. |
2435ba6c82e6
help: document wire protocol capabilities
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29860
diff
changeset
|
441 |
2435ba6c82e6
help: document wire protocol capabilities
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29860
diff
changeset
|
442 unbundlehash |
2435ba6c82e6
help: document wire protocol capabilities
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29860
diff
changeset
|
443 ------------ |
2435ba6c82e6
help: document wire protocol capabilities
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29860
diff
changeset
|
444 |
2435ba6c82e6
help: document wire protocol capabilities
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29860
diff
changeset
|
445 Whether the ``unbundle`` commands supports receiving a hash of all the |
2435ba6c82e6
help: document wire protocol capabilities
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29860
diff
changeset
|
446 heads instead of a list. |
2435ba6c82e6
help: document wire protocol capabilities
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29860
diff
changeset
|
447 |
2435ba6c82e6
help: document wire protocol capabilities
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29860
diff
changeset
|
448 For more, see the documentation for the ``unbundle`` command. |
2435ba6c82e6
help: document wire protocol capabilities
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29860
diff
changeset
|
449 |
2435ba6c82e6
help: document wire protocol capabilities
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29860
diff
changeset
|
450 This capability was introduced in Mercurial 1.9 (released July 2011). |
2435ba6c82e6
help: document wire protocol capabilities
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29860
diff
changeset
|
451 |
2435ba6c82e6
help: document wire protocol capabilities
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29860
diff
changeset
|
452 unbundle |
2435ba6c82e6
help: document wire protocol capabilities
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29860
diff
changeset
|
453 -------- |
2435ba6c82e6
help: document wire protocol capabilities
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29860
diff
changeset
|
454 |
2435ba6c82e6
help: document wire protocol capabilities
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29860
diff
changeset
|
455 Whether the server supports pushing via the ``unbundle`` command. |
2435ba6c82e6
help: document wire protocol capabilities
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29860
diff
changeset
|
456 |
2435ba6c82e6
help: document wire protocol capabilities
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29860
diff
changeset
|
457 This capability/command has been present since Mercurial 0.9.1 (released |
2435ba6c82e6
help: document wire protocol capabilities
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29860
diff
changeset
|
458 July 2006). |
2435ba6c82e6
help: document wire protocol capabilities
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29860
diff
changeset
|
459 |
2435ba6c82e6
help: document wire protocol capabilities
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29860
diff
changeset
|
460 Mercurial 0.9.2 (released December 2006) added values to the capability |
2435ba6c82e6
help: document wire protocol capabilities
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29860
diff
changeset
|
461 indicating which bundle types the server supports receiving. This value is a |
2435ba6c82e6
help: document wire protocol capabilities
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29860
diff
changeset
|
462 comma-delimited list. e.g. ``HG10GZ,HG10BZ,HG10UN``. The order of values |
2435ba6c82e6
help: document wire protocol capabilities
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29860
diff
changeset
|
463 reflects the priority/preference of that type, where the first value is the |
2435ba6c82e6
help: document wire protocol capabilities
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29860
diff
changeset
|
464 most preferred type. |
29864
f0d47aca1d47
help: document wire protocol "handshake" protocol
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29863
diff
changeset
|
465 |
f0d47aca1d47
help: document wire protocol "handshake" protocol
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29863
diff
changeset
|
466 Handshake Protocol |
f0d47aca1d47
help: document wire protocol "handshake" protocol
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29863
diff
changeset
|
467 ================== |
f0d47aca1d47
help: document wire protocol "handshake" protocol
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29863
diff
changeset
|
468 |
f0d47aca1d47
help: document wire protocol "handshake" protocol
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29863
diff
changeset
|
469 While not explicitly required, it is common for clients to perform a |
f0d47aca1d47
help: document wire protocol "handshake" protocol
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29863
diff
changeset
|
470 *handshake* when connecting to a server. The handshake accomplishes 2 things: |
f0d47aca1d47
help: document wire protocol "handshake" protocol
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29863
diff
changeset
|
471 |
f0d47aca1d47
help: document wire protocol "handshake" protocol
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29863
diff
changeset
|
472 * Obtaining capabilities and other server features |
f0d47aca1d47
help: document wire protocol "handshake" protocol
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29863
diff
changeset
|
473 * Flushing extra server output (e.g. SSH servers may print extra text |
f0d47aca1d47
help: document wire protocol "handshake" protocol
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29863
diff
changeset
|
474 when connecting that may confuse the wire protocol) |
f0d47aca1d47
help: document wire protocol "handshake" protocol
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29863
diff
changeset
|
475 |
f0d47aca1d47
help: document wire protocol "handshake" protocol
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29863
diff
changeset
|
476 This isn't a traditional *handshake* as far as network protocols go because |
f0d47aca1d47
help: document wire protocol "handshake" protocol
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29863
diff
changeset
|
477 there is no persistent state as a result of the handshake: the handshake is |
f0d47aca1d47
help: document wire protocol "handshake" protocol
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29863
diff
changeset
|
478 simply the issuing of commands and commands are stateless. |
f0d47aca1d47
help: document wire protocol "handshake" protocol
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29863
diff
changeset
|
479 |
f0d47aca1d47
help: document wire protocol "handshake" protocol
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29863
diff
changeset
|
480 The canonical clients perform a capabilities lookup at connection establishment |
f0d47aca1d47
help: document wire protocol "handshake" protocol
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29863
diff
changeset
|
481 time. This is because clients must assume a server only supports the features |
f0d47aca1d47
help: document wire protocol "handshake" protocol
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29863
diff
changeset
|
482 of the original Mercurial server implementation until proven otherwise (from |
f0d47aca1d47
help: document wire protocol "handshake" protocol
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29863
diff
changeset
|
483 advertised capabilities). Nearly every server running today supports features |
f0d47aca1d47
help: document wire protocol "handshake" protocol
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29863
diff
changeset
|
484 that weren't present in the original Mercurial server implementation. Rather |
f0d47aca1d47
help: document wire protocol "handshake" protocol
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29863
diff
changeset
|
485 than wait for a client to perform functionality that needs to consult |
f0d47aca1d47
help: document wire protocol "handshake" protocol
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29863
diff
changeset
|
486 capabilities, it issues the lookup at connection start to avoid any delay later. |
f0d47aca1d47
help: document wire protocol "handshake" protocol
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29863
diff
changeset
|
487 |
f0d47aca1d47
help: document wire protocol "handshake" protocol
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29863
diff
changeset
|
488 For HTTP servers, the client sends a ``capabilities`` command request as |
f0d47aca1d47
help: document wire protocol "handshake" protocol
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29863
diff
changeset
|
489 soon as the connection is established. The server responds with a capabilities |
f0d47aca1d47
help: document wire protocol "handshake" protocol
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29863
diff
changeset
|
490 string, which the client parses. |
f0d47aca1d47
help: document wire protocol "handshake" protocol
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29863
diff
changeset
|
491 |
f0d47aca1d47
help: document wire protocol "handshake" protocol
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29863
diff
changeset
|
492 For SSH servers, the client sends the ``hello`` command (no arguments) |
f0d47aca1d47
help: document wire protocol "handshake" protocol
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29863
diff
changeset
|
493 and a ``between`` command with the ``pairs`` argument having the value |
f0d47aca1d47
help: document wire protocol "handshake" protocol
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29863
diff
changeset
|
494 ``0000000000000000000000000000000000000000-0000000000000000000000000000000000000000``. |
f0d47aca1d47
help: document wire protocol "handshake" protocol
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29863
diff
changeset
|
495 |
f0d47aca1d47
help: document wire protocol "handshake" protocol
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29863
diff
changeset
|
496 The ``between`` command has been supported since the original Mercurial |
f0d47aca1d47
help: document wire protocol "handshake" protocol
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29863
diff
changeset
|
497 server. Requesting the empty range will return a ``\n`` string response, |
f0d47aca1d47
help: document wire protocol "handshake" protocol
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29863
diff
changeset
|
498 which will be encoded as ``1\n\n`` (value length of ``1`` followed by a newline |
f0d47aca1d47
help: document wire protocol "handshake" protocol
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29863
diff
changeset
|
499 followed by the value, which happens to be a newline). |
f0d47aca1d47
help: document wire protocol "handshake" protocol
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29863
diff
changeset
|
500 |
f0d47aca1d47
help: document wire protocol "handshake" protocol
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29863
diff
changeset
|
501 The ``hello`` command was later introduced. Servers supporting it will issue |
f0d47aca1d47
help: document wire protocol "handshake" protocol
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29863
diff
changeset
|
502 a response to that command before sending the ``1\n\n`` response to the |
f0d47aca1d47
help: document wire protocol "handshake" protocol
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29863
diff
changeset
|
503 ``between`` command. Servers not supporting ``hello`` will send an empty |
f0d47aca1d47
help: document wire protocol "handshake" protocol
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29863
diff
changeset
|
504 response (``0\n``). |
f0d47aca1d47
help: document wire protocol "handshake" protocol
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29863
diff
changeset
|
505 |
f0d47aca1d47
help: document wire protocol "handshake" protocol
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29863
diff
changeset
|
506 In addition to the expected output from the ``hello`` and ``between`` commands, |
f0d47aca1d47
help: document wire protocol "handshake" protocol
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29863
diff
changeset
|
507 servers may also send other output, such as *message of the day (MOTD)* |
f0d47aca1d47
help: document wire protocol "handshake" protocol
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29863
diff
changeset
|
508 announcements. Clients assume servers will send this output before the |
f0d47aca1d47
help: document wire protocol "handshake" protocol
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29863
diff
changeset
|
509 Mercurial server replies to the client-issued commands. So any server output |
f0d47aca1d47
help: document wire protocol "handshake" protocol
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29863
diff
changeset
|
510 not conforming to the expected command responses is assumed to be not related |
f0d47aca1d47
help: document wire protocol "handshake" protocol
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29863
diff
changeset
|
511 to Mercurial and can be ignored. |
29865
80c11c1a64bf
help: document wire protocol commands
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29864
diff
changeset
|
512 |
30760
753b9d43ca81
internals: document compression negotiation
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29865
diff
changeset
|
513 Content Negotiation |
753b9d43ca81
internals: document compression negotiation
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29865
diff
changeset
|
514 =================== |
753b9d43ca81
internals: document compression negotiation
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29865
diff
changeset
|
515 |
753b9d43ca81
internals: document compression negotiation
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29865
diff
changeset
|
516 The wire protocol has some mechanisms to help peers determine what content |
753b9d43ca81
internals: document compression negotiation
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29865
diff
changeset
|
517 types and encoding the other side will accept. Historically, these mechanisms |
753b9d43ca81
internals: document compression negotiation
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29865
diff
changeset
|
518 have been built into commands themselves because most commands only send a |
753b9d43ca81
internals: document compression negotiation
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29865
diff
changeset
|
519 well-defined response type and only certain commands needed to support |
753b9d43ca81
internals: document compression negotiation
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29865
diff
changeset
|
520 functionality like compression. |
753b9d43ca81
internals: document compression negotiation
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29865
diff
changeset
|
521 |
753b9d43ca81
internals: document compression negotiation
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29865
diff
changeset
|
522 Currently, only the HTTP transport supports content negotiation at the protocol |
753b9d43ca81
internals: document compression negotiation
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29865
diff
changeset
|
523 layer. |
753b9d43ca81
internals: document compression negotiation
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29865
diff
changeset
|
524 |
753b9d43ca81
internals: document compression negotiation
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29865
diff
changeset
|
525 HTTP requests advertise supported response formats via the ``X-HgProto-<N>`` |
753b9d43ca81
internals: document compression negotiation
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29865
diff
changeset
|
526 request header, where ``<N>`` is an integer starting at 1 allowing the logical |
753b9d43ca81
internals: document compression negotiation
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29865
diff
changeset
|
527 value to span multiple headers. This value consists of a list of |
753b9d43ca81
internals: document compression negotiation
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29865
diff
changeset
|
528 space-delimited parameters. Each parameter denotes a feature or capability. |
753b9d43ca81
internals: document compression negotiation
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29865
diff
changeset
|
529 |
753b9d43ca81
internals: document compression negotiation
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29865
diff
changeset
|
530 The following parameters are defined: |
753b9d43ca81
internals: document compression negotiation
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29865
diff
changeset
|
531 |
753b9d43ca81
internals: document compression negotiation
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29865
diff
changeset
|
532 0.1 |
753b9d43ca81
internals: document compression negotiation
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29865
diff
changeset
|
533 Indicates the client supports receiving ``application/mercurial-0.1`` |
753b9d43ca81
internals: document compression negotiation
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29865
diff
changeset
|
534 responses. |
753b9d43ca81
internals: document compression negotiation
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29865
diff
changeset
|
535 |
753b9d43ca81
internals: document compression negotiation
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29865
diff
changeset
|
536 0.2 |
753b9d43ca81
internals: document compression negotiation
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29865
diff
changeset
|
537 Indicates the client supports receiving ``application/mercurial-0.2`` |
753b9d43ca81
internals: document compression negotiation
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29865
diff
changeset
|
538 responses. |
753b9d43ca81
internals: document compression negotiation
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29865
diff
changeset
|
539 |
753b9d43ca81
internals: document compression negotiation
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29865
diff
changeset
|
540 comp |
753b9d43ca81
internals: document compression negotiation
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29865
diff
changeset
|
541 Indicates compression formats the client can decode. Value is a list of |
753b9d43ca81
internals: document compression negotiation
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29865
diff
changeset
|
542 comma delimited strings identifying compression formats ordered from |
753b9d43ca81
internals: document compression negotiation
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29865
diff
changeset
|
543 most preferential to least preferential. e.g. ``comp=zstd,zlib,none``. |
753b9d43ca81
internals: document compression negotiation
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29865
diff
changeset
|
544 |
753b9d43ca81
internals: document compression negotiation
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29865
diff
changeset
|
545 This parameter does not have an effect if only the ``0.1`` parameter |
753b9d43ca81
internals: document compression negotiation
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29865
diff
changeset
|
546 is defined, as support for ``application/mercurial-0.2`` or greater is |
753b9d43ca81
internals: document compression negotiation
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29865
diff
changeset
|
547 required to use arbitrary compression formats. |
753b9d43ca81
internals: document compression negotiation
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29865
diff
changeset
|
548 |
753b9d43ca81
internals: document compression negotiation
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29865
diff
changeset
|
549 If this parameter is not advertised, the server interprets this as |
753b9d43ca81
internals: document compression negotiation
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29865
diff
changeset
|
550 equivalent to ``zlib,none``. |
753b9d43ca81
internals: document compression negotiation
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29865
diff
changeset
|
551 |
753b9d43ca81
internals: document compression negotiation
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29865
diff
changeset
|
552 Clients may choose to only send this header if the ``httpmediatype`` |
753b9d43ca81
internals: document compression negotiation
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29865
diff
changeset
|
553 server capability is present, as currently all server-side features |
753b9d43ca81
internals: document compression negotiation
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29865
diff
changeset
|
554 consulting this header require the client to opt in to new protocol features |
753b9d43ca81
internals: document compression negotiation
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29865
diff
changeset
|
555 advertised via the ``httpmediatype`` capability. |
753b9d43ca81
internals: document compression negotiation
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29865
diff
changeset
|
556 |
753b9d43ca81
internals: document compression negotiation
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29865
diff
changeset
|
557 A server that doesn't receive an ``X-HgProto-<N>`` header should infer a |
753b9d43ca81
internals: document compression negotiation
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29865
diff
changeset
|
558 value of ``0.1``. This is compatible with legacy clients. |
753b9d43ca81
internals: document compression negotiation
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29865
diff
changeset
|
559 |
753b9d43ca81
internals: document compression negotiation
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29865
diff
changeset
|
560 A server receiving a request indicating support for multiple media type |
753b9d43ca81
internals: document compression negotiation
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29865
diff
changeset
|
561 versions may respond with any of the supported media types. Not all servers |
753b9d43ca81
internals: document compression negotiation
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29865
diff
changeset
|
562 may support all media types on all commands. |
753b9d43ca81
internals: document compression negotiation
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29865
diff
changeset
|
563 |
29865
80c11c1a64bf
help: document wire protocol commands
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29864
diff
changeset
|
564 Commands |
80c11c1a64bf
help: document wire protocol commands
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29864
diff
changeset
|
565 ======== |
80c11c1a64bf
help: document wire protocol commands
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29864
diff
changeset
|
566 |
80c11c1a64bf
help: document wire protocol commands
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29864
diff
changeset
|
567 This section contains a list of all wire protocol commands implemented by |
80c11c1a64bf
help: document wire protocol commands
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29864
diff
changeset
|
568 the canonical Mercurial server. |
80c11c1a64bf
help: document wire protocol commands
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29864
diff
changeset
|
569 |
80c11c1a64bf
help: document wire protocol commands
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29864
diff
changeset
|
570 batch |
80c11c1a64bf
help: document wire protocol commands
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29864
diff
changeset
|
571 ----- |
80c11c1a64bf
help: document wire protocol commands
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29864
diff
changeset
|
572 |
80c11c1a64bf
help: document wire protocol commands
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29864
diff
changeset
|
573 Issue multiple commands while sending a single command request. The purpose |
80c11c1a64bf
help: document wire protocol commands
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29864
diff
changeset
|
574 of this command is to allow a client to issue multiple commands while avoiding |
80c11c1a64bf
help: document wire protocol commands
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29864
diff
changeset
|
575 multiple round trips to the server therefore enabling commands to complete |
80c11c1a64bf
help: document wire protocol commands
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29864
diff
changeset
|
576 quicker. |
80c11c1a64bf
help: document wire protocol commands
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29864
diff
changeset
|
577 |
80c11c1a64bf
help: document wire protocol commands
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29864
diff
changeset
|
578 The command accepts a ``cmds`` argument that contains a list of commands to |
80c11c1a64bf
help: document wire protocol commands
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29864
diff
changeset
|
579 execute. |
80c11c1a64bf
help: document wire protocol commands
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29864
diff
changeset
|
580 |
80c11c1a64bf
help: document wire protocol commands
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29864
diff
changeset
|
581 The value of ``cmds`` is a ``;`` delimited list of strings. Each string has the |
80c11c1a64bf
help: document wire protocol commands
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29864
diff
changeset
|
582 form ``<command> <arguments>``. That is, the command name followed by a space |
80c11c1a64bf
help: document wire protocol commands
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29864
diff
changeset
|
583 followed by an argument string. |
80c11c1a64bf
help: document wire protocol commands
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29864
diff
changeset
|
584 |
80c11c1a64bf
help: document wire protocol commands
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29864
diff
changeset
|
585 The argument string is a ``,`` delimited list of ``<key>=<value>`` values |
80c11c1a64bf
help: document wire protocol commands
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29864
diff
changeset
|
586 corresponding to command arguments. Both the argument name and value are |
80c11c1a64bf
help: document wire protocol commands
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29864
diff
changeset
|
587 escaped using a special substitution map:: |
80c11c1a64bf
help: document wire protocol commands
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29864
diff
changeset
|
588 |
80c11c1a64bf
help: document wire protocol commands
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29864
diff
changeset
|
589 : -> :c |
80c11c1a64bf
help: document wire protocol commands
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29864
diff
changeset
|
590 , -> :o |
80c11c1a64bf
help: document wire protocol commands
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29864
diff
changeset
|
591 ; -> :s |
80c11c1a64bf
help: document wire protocol commands
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29864
diff
changeset
|
592 = -> :e |
80c11c1a64bf
help: document wire protocol commands
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29864
diff
changeset
|
593 |
80c11c1a64bf
help: document wire protocol commands
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29864
diff
changeset
|
594 The response type for this command is ``string``. The value contains a |
80c11c1a64bf
help: document wire protocol commands
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29864
diff
changeset
|
595 ``;`` delimited list of responses for each requested command. Each value |
80c11c1a64bf
help: document wire protocol commands
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29864
diff
changeset
|
596 in this list is escaped using the same substitution map used for arguments. |
80c11c1a64bf
help: document wire protocol commands
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29864
diff
changeset
|
597 |
80c11c1a64bf
help: document wire protocol commands
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29864
diff
changeset
|
598 If an error occurs, the generic error response may be sent. |
80c11c1a64bf
help: document wire protocol commands
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29864
diff
changeset
|
599 |
80c11c1a64bf
help: document wire protocol commands
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29864
diff
changeset
|
600 between |
80c11c1a64bf
help: document wire protocol commands
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29864
diff
changeset
|
601 ------- |
80c11c1a64bf
help: document wire protocol commands
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29864
diff
changeset
|
602 |
80c11c1a64bf
help: document wire protocol commands
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29864
diff
changeset
|
603 (Legacy command used for discovery in old clients) |
80c11c1a64bf
help: document wire protocol commands
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29864
diff
changeset
|
604 |
80c11c1a64bf
help: document wire protocol commands
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29864
diff
changeset
|
605 Obtain nodes between pairs of nodes. |
80c11c1a64bf
help: document wire protocol commands
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29864
diff
changeset
|
606 |
80c11c1a64bf
help: document wire protocol commands
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29864
diff
changeset
|
607 The ``pairs`` arguments contains a space-delimited list of ``-`` delimited |
80c11c1a64bf
help: document wire protocol commands
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29864
diff
changeset
|
608 hex node pairs. e.g.:: |
80c11c1a64bf
help: document wire protocol commands
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29864
diff
changeset
|
609 |
80c11c1a64bf
help: document wire protocol commands
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29864
diff
changeset
|
610 a072279d3f7fd3a4aa7ffa1a5af8efc573e1c896-6dc58916e7c070f678682bfe404d2e2d68291a18 |
80c11c1a64bf
help: document wire protocol commands
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29864
diff
changeset
|
611 |
80c11c1a64bf
help: document wire protocol commands
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29864
diff
changeset
|
612 Return type is a ``string``. Value consists of lines corresponding to each |
80c11c1a64bf
help: document wire protocol commands
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29864
diff
changeset
|
613 requested range. Each line contains a space-delimited list of hex nodes. |
80c11c1a64bf
help: document wire protocol commands
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29864
diff
changeset
|
614 A newline ``\n`` terminates each line, including the last one. |
80c11c1a64bf
help: document wire protocol commands
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29864
diff
changeset
|
615 |
80c11c1a64bf
help: document wire protocol commands
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29864
diff
changeset
|
616 branchmap |
80c11c1a64bf
help: document wire protocol commands
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29864
diff
changeset
|
617 --------- |
80c11c1a64bf
help: document wire protocol commands
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29864
diff
changeset
|
618 |
80c11c1a64bf
help: document wire protocol commands
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29864
diff
changeset
|
619 Obtain heads in named branches. |
80c11c1a64bf
help: document wire protocol commands
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29864
diff
changeset
|
620 |
80c11c1a64bf
help: document wire protocol commands
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29864
diff
changeset
|
621 Accepts no arguments. Return type is a ``string``. |
80c11c1a64bf
help: document wire protocol commands
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29864
diff
changeset
|
622 |
80c11c1a64bf
help: document wire protocol commands
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29864
diff
changeset
|
623 Return value contains lines with URL encoded branch names followed by a space |
80c11c1a64bf
help: document wire protocol commands
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29864
diff
changeset
|
624 followed by a space-delimited list of hex nodes of heads on that branch. |
80c11c1a64bf
help: document wire protocol commands
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29864
diff
changeset
|
625 e.g.:: |
80c11c1a64bf
help: document wire protocol commands
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29864
diff
changeset
|
626 |
80c11c1a64bf
help: document wire protocol commands
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29864
diff
changeset
|
627 default a072279d3f7fd3a4aa7ffa1a5af8efc573e1c896 6dc58916e7c070f678682bfe404d2e2d68291a18 |
80c11c1a64bf
help: document wire protocol commands
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29864
diff
changeset
|
628 stable baae3bf31522f41dd5e6d7377d0edd8d1cf3fccc |
80c11c1a64bf
help: document wire protocol commands
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29864
diff
changeset
|
629 |
80c11c1a64bf
help: document wire protocol commands
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29864
diff
changeset
|
630 There is no trailing newline. |
80c11c1a64bf
help: document wire protocol commands
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29864
diff
changeset
|
631 |
80c11c1a64bf
help: document wire protocol commands
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29864
diff
changeset
|
632 branches |
80c11c1a64bf
help: document wire protocol commands
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29864
diff
changeset
|
633 -------- |
80c11c1a64bf
help: document wire protocol commands
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29864
diff
changeset
|
634 |
80c11c1a64bf
help: document wire protocol commands
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29864
diff
changeset
|
635 Obtain ancestor changesets of specific nodes back to a branch point. |
80c11c1a64bf
help: document wire protocol commands
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29864
diff
changeset
|
636 |
80c11c1a64bf
help: document wire protocol commands
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29864
diff
changeset
|
637 Despite the name, this command has nothing to do with Mercurial named branches. |
80c11c1a64bf
help: document wire protocol commands
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29864
diff
changeset
|
638 Instead, it is related to DAG branches. |
80c11c1a64bf
help: document wire protocol commands
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29864
diff
changeset
|
639 |
80c11c1a64bf
help: document wire protocol commands
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29864
diff
changeset
|
640 The command accepts a ``nodes`` argument, which is a string of space-delimited |
80c11c1a64bf
help: document wire protocol commands
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29864
diff
changeset
|
641 hex nodes. |
80c11c1a64bf
help: document wire protocol commands
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29864
diff
changeset
|
642 |
80c11c1a64bf
help: document wire protocol commands
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29864
diff
changeset
|
643 For each node requested, the server will find the first ancestor node that is |
80c11c1a64bf
help: document wire protocol commands
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29864
diff
changeset
|
644 a DAG root or is a merge. |
80c11c1a64bf
help: document wire protocol commands
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29864
diff
changeset
|
645 |
80c11c1a64bf
help: document wire protocol commands
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29864
diff
changeset
|
646 Return type is a ``string``. Return value contains lines with result data for |
80c11c1a64bf
help: document wire protocol commands
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29864
diff
changeset
|
647 each requested node. Each line contains space-delimited nodes followed by a |
80c11c1a64bf
help: document wire protocol commands
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29864
diff
changeset
|
648 newline (``\n``). The 4 nodes reported on each line correspond to the requested |
80c11c1a64bf
help: document wire protocol commands
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29864
diff
changeset
|
649 node, the ancestor node found, and its 2 parent nodes (which may be the null |
80c11c1a64bf
help: document wire protocol commands
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29864
diff
changeset
|
650 node). |
80c11c1a64bf
help: document wire protocol commands
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29864
diff
changeset
|
651 |
80c11c1a64bf
help: document wire protocol commands
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29864
diff
changeset
|
652 capabilities |
80c11c1a64bf
help: document wire protocol commands
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29864
diff
changeset
|
653 ------------ |
80c11c1a64bf
help: document wire protocol commands
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29864
diff
changeset
|
654 |
80c11c1a64bf
help: document wire protocol commands
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29864
diff
changeset
|
655 Obtain the capabilities string for the repo. |
80c11c1a64bf
help: document wire protocol commands
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29864
diff
changeset
|
656 |
80c11c1a64bf
help: document wire protocol commands
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29864
diff
changeset
|
657 Unlike the ``hello`` command, the capabilities string is not prefixed. |
80c11c1a64bf
help: document wire protocol commands
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29864
diff
changeset
|
658 There is no trailing newline. |
80c11c1a64bf
help: document wire protocol commands
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29864
diff
changeset
|
659 |
80c11c1a64bf
help: document wire protocol commands
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29864
diff
changeset
|
660 This command does not accept any arguments. Return type is a ``string``. |
80c11c1a64bf
help: document wire protocol commands
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29864
diff
changeset
|
661 |
80c11c1a64bf
help: document wire protocol commands
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29864
diff
changeset
|
662 changegroup |
80c11c1a64bf
help: document wire protocol commands
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29864
diff
changeset
|
663 ----------- |
80c11c1a64bf
help: document wire protocol commands
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29864
diff
changeset
|
664 |
80c11c1a64bf
help: document wire protocol commands
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29864
diff
changeset
|
665 (Legacy command: use ``getbundle`` instead) |
80c11c1a64bf
help: document wire protocol commands
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29864
diff
changeset
|
666 |
80c11c1a64bf
help: document wire protocol commands
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29864
diff
changeset
|
667 Obtain a changegroup version 1 with data for changesets that are |
80c11c1a64bf
help: document wire protocol commands
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29864
diff
changeset
|
668 descendants of client-specified changesets. |
80c11c1a64bf
help: document wire protocol commands
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29864
diff
changeset
|
669 |
80c11c1a64bf
help: document wire protocol commands
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29864
diff
changeset
|
670 The ``roots`` arguments contains a list of space-delimited hex nodes. |
80c11c1a64bf
help: document wire protocol commands
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29864
diff
changeset
|
671 |
80c11c1a64bf
help: document wire protocol commands
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29864
diff
changeset
|
672 The server responds with a changegroup version 1 containing all |
80c11c1a64bf
help: document wire protocol commands
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29864
diff
changeset
|
673 changesets between the requested root/base nodes and the repo's head nodes |
80c11c1a64bf
help: document wire protocol commands
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29864
diff
changeset
|
674 at the time of the request. |
80c11c1a64bf
help: document wire protocol commands
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29864
diff
changeset
|
675 |
80c11c1a64bf
help: document wire protocol commands
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29864
diff
changeset
|
676 The return type is a ``stream``. |
80c11c1a64bf
help: document wire protocol commands
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29864
diff
changeset
|
677 |
80c11c1a64bf
help: document wire protocol commands
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29864
diff
changeset
|
678 changegroupsubset |
80c11c1a64bf
help: document wire protocol commands
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29864
diff
changeset
|
679 ----------------- |
80c11c1a64bf
help: document wire protocol commands
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29864
diff
changeset
|
680 |
80c11c1a64bf
help: document wire protocol commands
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29864
diff
changeset
|
681 (Legacy command: use ``getbundle`` instead) |
80c11c1a64bf
help: document wire protocol commands
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29864
diff
changeset
|
682 |
80c11c1a64bf
help: document wire protocol commands
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29864
diff
changeset
|
683 Obtain a changegroup version 1 with data for changesetsets between |
80c11c1a64bf
help: document wire protocol commands
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29864
diff
changeset
|
684 client specified base and head nodes. |
80c11c1a64bf
help: document wire protocol commands
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29864
diff
changeset
|
685 |
80c11c1a64bf
help: document wire protocol commands
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29864
diff
changeset
|
686 The ``bases`` argument contains a list of space-delimited hex nodes. |
80c11c1a64bf
help: document wire protocol commands
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29864
diff
changeset
|
687 The ``heads`` argument contains a list of space-delimited hex nodes. |
80c11c1a64bf
help: document wire protocol commands
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29864
diff
changeset
|
688 |
80c11c1a64bf
help: document wire protocol commands
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29864
diff
changeset
|
689 The server responds with a changegroup version 1 containing all |
80c11c1a64bf
help: document wire protocol commands
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29864
diff
changeset
|
690 changesets between the requested base and head nodes at the time of the |
80c11c1a64bf
help: document wire protocol commands
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29864
diff
changeset
|
691 request. |
80c11c1a64bf
help: document wire protocol commands
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29864
diff
changeset
|
692 |
80c11c1a64bf
help: document wire protocol commands
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29864
diff
changeset
|
693 The return type is a ``stream``. |
80c11c1a64bf
help: document wire protocol commands
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29864
diff
changeset
|
694 |
80c11c1a64bf
help: document wire protocol commands
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29864
diff
changeset
|
695 clonebundles |
80c11c1a64bf
help: document wire protocol commands
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29864
diff
changeset
|
696 ------------ |
80c11c1a64bf
help: document wire protocol commands
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29864
diff
changeset
|
697 |
80c11c1a64bf
help: document wire protocol commands
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29864
diff
changeset
|
698 Obtains a manifest of bundle URLs available to seed clones. |
80c11c1a64bf
help: document wire protocol commands
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29864
diff
changeset
|
699 |
80c11c1a64bf
help: document wire protocol commands
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29864
diff
changeset
|
700 Each returned line contains a URL followed by metadata. See the |
80c11c1a64bf
help: document wire protocol commands
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29864
diff
changeset
|
701 documentation in the ``clonebundles`` extension for more. |
80c11c1a64bf
help: document wire protocol commands
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29864
diff
changeset
|
702 |
80c11c1a64bf
help: document wire protocol commands
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29864
diff
changeset
|
703 The return type is a ``string``. |
80c11c1a64bf
help: document wire protocol commands
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29864
diff
changeset
|
704 |
80c11c1a64bf
help: document wire protocol commands
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29864
diff
changeset
|
705 getbundle |
80c11c1a64bf
help: document wire protocol commands
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29864
diff
changeset
|
706 --------- |
80c11c1a64bf
help: document wire protocol commands
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29864
diff
changeset
|
707 |
80c11c1a64bf
help: document wire protocol commands
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29864
diff
changeset
|
708 Obtain a bundle containing repository data. |
80c11c1a64bf
help: document wire protocol commands
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29864
diff
changeset
|
709 |
80c11c1a64bf
help: document wire protocol commands
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29864
diff
changeset
|
710 This command accepts the following arguments: |
80c11c1a64bf
help: document wire protocol commands
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29864
diff
changeset
|
711 |
80c11c1a64bf
help: document wire protocol commands
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29864
diff
changeset
|
712 heads |
80c11c1a64bf
help: document wire protocol commands
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29864
diff
changeset
|
713 List of space-delimited hex nodes of heads to retrieve. |
80c11c1a64bf
help: document wire protocol commands
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29864
diff
changeset
|
714 common |
80c11c1a64bf
help: document wire protocol commands
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29864
diff
changeset
|
715 List of space-delimited hex nodes that the client has in common with the |
80c11c1a64bf
help: document wire protocol commands
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29864
diff
changeset
|
716 server. |
80c11c1a64bf
help: document wire protocol commands
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29864
diff
changeset
|
717 obsmarkers |
80c11c1a64bf
help: document wire protocol commands
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29864
diff
changeset
|
718 Boolean indicating whether to include obsolescence markers as part |
80c11c1a64bf
help: document wire protocol commands
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29864
diff
changeset
|
719 of the response. Only works with bundle2. |
80c11c1a64bf
help: document wire protocol commands
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29864
diff
changeset
|
720 bundlecaps |
80c11c1a64bf
help: document wire protocol commands
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29864
diff
changeset
|
721 Comma-delimited set of strings defining client bundle capabilities. |
80c11c1a64bf
help: document wire protocol commands
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29864
diff
changeset
|
722 listkeys |
80c11c1a64bf
help: document wire protocol commands
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29864
diff
changeset
|
723 Comma-delimited list of strings of ``pushkey`` namespaces. For each |
80c11c1a64bf
help: document wire protocol commands
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29864
diff
changeset
|
724 namespace listed, a bundle2 part will be included with the content of |
80c11c1a64bf
help: document wire protocol commands
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29864
diff
changeset
|
725 that namespace. |
80c11c1a64bf
help: document wire protocol commands
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29864
diff
changeset
|
726 cg |
80c11c1a64bf
help: document wire protocol commands
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29864
diff
changeset
|
727 Boolean indicating whether changegroup data is requested. |
80c11c1a64bf
help: document wire protocol commands
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29864
diff
changeset
|
728 cbattempted |
80c11c1a64bf
help: document wire protocol commands
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29864
diff
changeset
|
729 Boolean indicating whether the client attempted to use the *clone bundles* |
80c11c1a64bf
help: document wire protocol commands
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29864
diff
changeset
|
730 feature before performing this request. |
80c11c1a64bf
help: document wire protocol commands
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29864
diff
changeset
|
731 |
80c11c1a64bf
help: document wire protocol commands
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29864
diff
changeset
|
732 The return type on success is a ``stream`` where the value is bundle. |
80c11c1a64bf
help: document wire protocol commands
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29864
diff
changeset
|
733 On the HTTP transport, the response is zlib compressed. |
80c11c1a64bf
help: document wire protocol commands
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29864
diff
changeset
|
734 |
80c11c1a64bf
help: document wire protocol commands
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29864
diff
changeset
|
735 If an error occurs, a generic error response can be sent. |
80c11c1a64bf
help: document wire protocol commands
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29864
diff
changeset
|
736 |
80c11c1a64bf
help: document wire protocol commands
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29864
diff
changeset
|
737 Unless the client sends a false value for the ``cg`` argument, the returned |
80c11c1a64bf
help: document wire protocol commands
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29864
diff
changeset
|
738 bundle contains a changegroup with the nodes between the specified ``common`` |
80c11c1a64bf
help: document wire protocol commands
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29864
diff
changeset
|
739 and ``heads`` nodes. Depending on the command arguments, the type and content |
80c11c1a64bf
help: document wire protocol commands
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29864
diff
changeset
|
740 of the returned bundle can vary significantly. |
80c11c1a64bf
help: document wire protocol commands
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29864
diff
changeset
|
741 |
80c11c1a64bf
help: document wire protocol commands
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29864
diff
changeset
|
742 The default behavior is for the server to send a raw changegroup version |
80c11c1a64bf
help: document wire protocol commands
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29864
diff
changeset
|
743 ``01`` response. |
80c11c1a64bf
help: document wire protocol commands
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29864
diff
changeset
|
744 |
80c11c1a64bf
help: document wire protocol commands
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29864
diff
changeset
|
745 If the ``bundlecaps`` provided by the client contain a value beginning |
80c11c1a64bf
help: document wire protocol commands
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29864
diff
changeset
|
746 with ``HG2``, a bundle2 will be returned. The bundle2 data may contain |
80c11c1a64bf
help: document wire protocol commands
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29864
diff
changeset
|
747 additional repository data, such as ``pushkey`` namespace values. |
80c11c1a64bf
help: document wire protocol commands
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29864
diff
changeset
|
748 |
80c11c1a64bf
help: document wire protocol commands
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29864
diff
changeset
|
749 heads |
80c11c1a64bf
help: document wire protocol commands
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29864
diff
changeset
|
750 ----- |
80c11c1a64bf
help: document wire protocol commands
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29864
diff
changeset
|
751 |
80c11c1a64bf
help: document wire protocol commands
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29864
diff
changeset
|
752 Returns a list of space-delimited hex nodes of repository heads followed |
80c11c1a64bf
help: document wire protocol commands
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29864
diff
changeset
|
753 by a newline. e.g. |
80c11c1a64bf
help: document wire protocol commands
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29864
diff
changeset
|
754 ``a9eeb3adc7ddb5006c088e9eda61791c777cbf7c 31f91a3da534dc849f0d6bfc00a395a97cf218a1\n`` |
80c11c1a64bf
help: document wire protocol commands
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29864
diff
changeset
|
755 |
80c11c1a64bf
help: document wire protocol commands
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29864
diff
changeset
|
756 This command does not accept any arguments. The return type is a ``string``. |
80c11c1a64bf
help: document wire protocol commands
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29864
diff
changeset
|
757 |
80c11c1a64bf
help: document wire protocol commands
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29864
diff
changeset
|
758 hello |
80c11c1a64bf
help: document wire protocol commands
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29864
diff
changeset
|
759 ----- |
80c11c1a64bf
help: document wire protocol commands
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29864
diff
changeset
|
760 |
80c11c1a64bf
help: document wire protocol commands
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29864
diff
changeset
|
761 Returns lines describing interesting things about the server in an RFC-822 |
80c11c1a64bf
help: document wire protocol commands
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29864
diff
changeset
|
762 like format. |
80c11c1a64bf
help: document wire protocol commands
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29864
diff
changeset
|
763 |
80c11c1a64bf
help: document wire protocol commands
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29864
diff
changeset
|
764 Currently, the only line defines the server capabilities. It has the form:: |
80c11c1a64bf
help: document wire protocol commands
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29864
diff
changeset
|
765 |
80c11c1a64bf
help: document wire protocol commands
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29864
diff
changeset
|
766 capabilities: <value> |
80c11c1a64bf
help: document wire protocol commands
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29864
diff
changeset
|
767 |
80c11c1a64bf
help: document wire protocol commands
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29864
diff
changeset
|
768 See above for more about the capabilities string. |
80c11c1a64bf
help: document wire protocol commands
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29864
diff
changeset
|
769 |
80c11c1a64bf
help: document wire protocol commands
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29864
diff
changeset
|
770 SSH clients typically issue this command as soon as a connection is |
80c11c1a64bf
help: document wire protocol commands
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29864
diff
changeset
|
771 established. |
80c11c1a64bf
help: document wire protocol commands
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29864
diff
changeset
|
772 |
80c11c1a64bf
help: document wire protocol commands
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29864
diff
changeset
|
773 This command does not accept any arguments. The return type is a ``string``. |
80c11c1a64bf
help: document wire protocol commands
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29864
diff
changeset
|
774 |
80c11c1a64bf
help: document wire protocol commands
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29864
diff
changeset
|
775 listkeys |
80c11c1a64bf
help: document wire protocol commands
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29864
diff
changeset
|
776 -------- |
80c11c1a64bf
help: document wire protocol commands
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29864
diff
changeset
|
777 |
80c11c1a64bf
help: document wire protocol commands
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29864
diff
changeset
|
778 List values in a specified ``pushkey`` namespace. |
80c11c1a64bf
help: document wire protocol commands
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29864
diff
changeset
|
779 |
80c11c1a64bf
help: document wire protocol commands
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29864
diff
changeset
|
780 The ``namespace`` argument defines the pushkey namespace to operate on. |
80c11c1a64bf
help: document wire protocol commands
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29864
diff
changeset
|
781 |
80c11c1a64bf
help: document wire protocol commands
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29864
diff
changeset
|
782 The return type is a ``string``. The value is an encoded dictionary of keys. |
80c11c1a64bf
help: document wire protocol commands
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29864
diff
changeset
|
783 |
80c11c1a64bf
help: document wire protocol commands
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29864
diff
changeset
|
784 Key-value pairs are delimited by newlines (``\n``). Within each line, keys and |
80c11c1a64bf
help: document wire protocol commands
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29864
diff
changeset
|
785 values are separated by a tab (``\t``). Keys and values are both strings. |
80c11c1a64bf
help: document wire protocol commands
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29864
diff
changeset
|
786 |
80c11c1a64bf
help: document wire protocol commands
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29864
diff
changeset
|
787 lookup |
80c11c1a64bf
help: document wire protocol commands
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29864
diff
changeset
|
788 ------ |
80c11c1a64bf
help: document wire protocol commands
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29864
diff
changeset
|
789 |
80c11c1a64bf
help: document wire protocol commands
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29864
diff
changeset
|
790 Try to resolve a value to a known repository revision. |
80c11c1a64bf
help: document wire protocol commands
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29864
diff
changeset
|
791 |
80c11c1a64bf
help: document wire protocol commands
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29864
diff
changeset
|
792 The ``key`` argument is converted from bytes to an |
80c11c1a64bf
help: document wire protocol commands
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29864
diff
changeset
|
793 ``encoding.localstr`` instance then passed into |
80c11c1a64bf
help: document wire protocol commands
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29864
diff
changeset
|
794 ``localrepository.__getitem__`` in an attempt to resolve it. |
80c11c1a64bf
help: document wire protocol commands
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29864
diff
changeset
|
795 |
80c11c1a64bf
help: document wire protocol commands
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29864
diff
changeset
|
796 The return type is a ``string``. |
80c11c1a64bf
help: document wire protocol commands
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29864
diff
changeset
|
797 |
80c11c1a64bf
help: document wire protocol commands
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29864
diff
changeset
|
798 Upon successful resolution, returns ``1 <hex node>\n``. On failure, |
80c11c1a64bf
help: document wire protocol commands
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29864
diff
changeset
|
799 returns ``0 <error string>\n``. e.g.:: |
80c11c1a64bf
help: document wire protocol commands
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29864
diff
changeset
|
800 |
80c11c1a64bf
help: document wire protocol commands
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29864
diff
changeset
|
801 1 273ce12ad8f155317b2c078ec75a4eba507f1fba\n |
80c11c1a64bf
help: document wire protocol commands
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29864
diff
changeset
|
802 |
80c11c1a64bf
help: document wire protocol commands
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29864
diff
changeset
|
803 0 unknown revision 'foo'\n |
80c11c1a64bf
help: document wire protocol commands
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29864
diff
changeset
|
804 |
80c11c1a64bf
help: document wire protocol commands
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29864
diff
changeset
|
805 known |
80c11c1a64bf
help: document wire protocol commands
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29864
diff
changeset
|
806 ----- |
80c11c1a64bf
help: document wire protocol commands
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29864
diff
changeset
|
807 |
80c11c1a64bf
help: document wire protocol commands
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29864
diff
changeset
|
808 Determine whether multiple nodes are known. |
80c11c1a64bf
help: document wire protocol commands
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29864
diff
changeset
|
809 |
80c11c1a64bf
help: document wire protocol commands
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29864
diff
changeset
|
810 The ``nodes`` argument is a list of space-delimited hex nodes to check |
80c11c1a64bf
help: document wire protocol commands
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29864
diff
changeset
|
811 for existence. |
80c11c1a64bf
help: document wire protocol commands
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29864
diff
changeset
|
812 |
80c11c1a64bf
help: document wire protocol commands
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29864
diff
changeset
|
813 The return type is ``string``. |
80c11c1a64bf
help: document wire protocol commands
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29864
diff
changeset
|
814 |
80c11c1a64bf
help: document wire protocol commands
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29864
diff
changeset
|
815 Returns a string consisting of ``0``s and ``1``s indicating whether nodes |
80c11c1a64bf
help: document wire protocol commands
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29864
diff
changeset
|
816 are known. If the Nth node specified in the ``nodes`` argument is known, |
80c11c1a64bf
help: document wire protocol commands
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29864
diff
changeset
|
817 a ``1`` will be returned at byte offset N. If the node isn't known, ``0`` |
80c11c1a64bf
help: document wire protocol commands
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29864
diff
changeset
|
818 will be present at byte offset N. |
80c11c1a64bf
help: document wire protocol commands
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29864
diff
changeset
|
819 |
80c11c1a64bf
help: document wire protocol commands
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29864
diff
changeset
|
820 There is no trailing newline. |
80c11c1a64bf
help: document wire protocol commands
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29864
diff
changeset
|
821 |
80c11c1a64bf
help: document wire protocol commands
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29864
diff
changeset
|
822 pushkey |
80c11c1a64bf
help: document wire protocol commands
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29864
diff
changeset
|
823 ------- |
80c11c1a64bf
help: document wire protocol commands
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29864
diff
changeset
|
824 |
80c11c1a64bf
help: document wire protocol commands
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29864
diff
changeset
|
825 Set a value using the ``pushkey`` protocol. |
80c11c1a64bf
help: document wire protocol commands
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29864
diff
changeset
|
826 |
80c11c1a64bf
help: document wire protocol commands
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29864
diff
changeset
|
827 Accepts arguments ``namespace``, ``key``, ``old``, and ``new``, which |
80c11c1a64bf
help: document wire protocol commands
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29864
diff
changeset
|
828 correspond to the pushkey namespace to operate on, the key within that |
80c11c1a64bf
help: document wire protocol commands
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29864
diff
changeset
|
829 namespace to change, the old value (which may be empty), and the new value. |
80c11c1a64bf
help: document wire protocol commands
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29864
diff
changeset
|
830 All arguments are string types. |
80c11c1a64bf
help: document wire protocol commands
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29864
diff
changeset
|
831 |
80c11c1a64bf
help: document wire protocol commands
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29864
diff
changeset
|
832 The return type is a ``string``. The value depends on the transport protocol. |
80c11c1a64bf
help: document wire protocol commands
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29864
diff
changeset
|
833 |
80c11c1a64bf
help: document wire protocol commands
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29864
diff
changeset
|
834 The SSH transport sends a string encoded integer followed by a newline |
80c11c1a64bf
help: document wire protocol commands
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29864
diff
changeset
|
835 (``\n``) which indicates operation result. The server may send additional |
80c11c1a64bf
help: document wire protocol commands
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29864
diff
changeset
|
836 output on the ``stderr`` stream that should be displayed to the user. |
80c11c1a64bf
help: document wire protocol commands
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29864
diff
changeset
|
837 |
80c11c1a64bf
help: document wire protocol commands
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29864
diff
changeset
|
838 The HTTP transport sends a string encoded integer followed by a newline |
80c11c1a64bf
help: document wire protocol commands
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29864
diff
changeset
|
839 followed by additional server output that should be displayed to the user. |
80c11c1a64bf
help: document wire protocol commands
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29864
diff
changeset
|
840 This may include output from hooks, etc. |
80c11c1a64bf
help: document wire protocol commands
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29864
diff
changeset
|
841 |
80c11c1a64bf
help: document wire protocol commands
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29864
diff
changeset
|
842 The integer result varies by namespace. ``0`` means an error has occurred |
80c11c1a64bf
help: document wire protocol commands
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29864
diff
changeset
|
843 and there should be additional output to display to the user. |
80c11c1a64bf
help: document wire protocol commands
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29864
diff
changeset
|
844 |
80c11c1a64bf
help: document wire protocol commands
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29864
diff
changeset
|
845 stream_out |
80c11c1a64bf
help: document wire protocol commands
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29864
diff
changeset
|
846 ---------- |
80c11c1a64bf
help: document wire protocol commands
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29864
diff
changeset
|
847 |
80c11c1a64bf
help: document wire protocol commands
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29864
diff
changeset
|
848 Obtain *streaming clone* data. |
80c11c1a64bf
help: document wire protocol commands
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29864
diff
changeset
|
849 |
80c11c1a64bf
help: document wire protocol commands
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29864
diff
changeset
|
850 The return type is either a ``string`` or a ``stream``, depending on |
80c11c1a64bf
help: document wire protocol commands
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29864
diff
changeset
|
851 whether the request was fulfilled properly. |
80c11c1a64bf
help: document wire protocol commands
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29864
diff
changeset
|
852 |
80c11c1a64bf
help: document wire protocol commands
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29864
diff
changeset
|
853 A return value of ``1\n`` indicates the server is not configured to serve |
80c11c1a64bf
help: document wire protocol commands
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29864
diff
changeset
|
854 this data. If this is seen by the client, they may not have verified the |
80c11c1a64bf
help: document wire protocol commands
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29864
diff
changeset
|
855 ``stream`` capability is set before making the request. |
80c11c1a64bf
help: document wire protocol commands
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29864
diff
changeset
|
856 |
80c11c1a64bf
help: document wire protocol commands
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29864
diff
changeset
|
857 A return value of ``2\n`` indicates the server was unable to lock the |
80c11c1a64bf
help: document wire protocol commands
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29864
diff
changeset
|
858 repository to generate data. |
80c11c1a64bf
help: document wire protocol commands
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29864
diff
changeset
|
859 |
80c11c1a64bf
help: document wire protocol commands
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29864
diff
changeset
|
860 All other responses are a ``stream`` of bytes. The first line of this data |
80c11c1a64bf
help: document wire protocol commands
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29864
diff
changeset
|
861 contains 2 space-delimited integers corresponding to the path count and |
80c11c1a64bf
help: document wire protocol commands
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29864
diff
changeset
|
862 payload size, respectively:: |
80c11c1a64bf
help: document wire protocol commands
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29864
diff
changeset
|
863 |
80c11c1a64bf
help: document wire protocol commands
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29864
diff
changeset
|
864 <path count> <payload size>\n |
80c11c1a64bf
help: document wire protocol commands
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29864
diff
changeset
|
865 |
80c11c1a64bf
help: document wire protocol commands
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29864
diff
changeset
|
866 The ``<payload size>`` is the total size of path data: it does not include |
80c11c1a64bf
help: document wire protocol commands
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29864
diff
changeset
|
867 the size of the per-path header lines. |
80c11c1a64bf
help: document wire protocol commands
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29864
diff
changeset
|
868 |
80c11c1a64bf
help: document wire protocol commands
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29864
diff
changeset
|
869 Following that header are ``<path count>`` entries. Each entry consists of a |
80c11c1a64bf
help: document wire protocol commands
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29864
diff
changeset
|
870 line with metadata followed by raw revlog data. The line consists of:: |
80c11c1a64bf
help: document wire protocol commands
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29864
diff
changeset
|
871 |
80c11c1a64bf
help: document wire protocol commands
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29864
diff
changeset
|
872 <store path>\0<size>\n |
80c11c1a64bf
help: document wire protocol commands
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29864
diff
changeset
|
873 |
80c11c1a64bf
help: document wire protocol commands
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29864
diff
changeset
|
874 The ``<store path>`` is the encoded store path of the data that follows. |
80c11c1a64bf
help: document wire protocol commands
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29864
diff
changeset
|
875 ``<size>`` is the amount of data for this store path/revlog that follows the |
80c11c1a64bf
help: document wire protocol commands
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29864
diff
changeset
|
876 newline. |
80c11c1a64bf
help: document wire protocol commands
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29864
diff
changeset
|
877 |
80c11c1a64bf
help: document wire protocol commands
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29864
diff
changeset
|
878 There is no trailer to indicate end of data. Instead, the client should stop |
80c11c1a64bf
help: document wire protocol commands
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29864
diff
changeset
|
879 reading after ``<path count>`` entries are consumed. |
80c11c1a64bf
help: document wire protocol commands
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29864
diff
changeset
|
880 |
80c11c1a64bf
help: document wire protocol commands
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29864
diff
changeset
|
881 unbundle |
80c11c1a64bf
help: document wire protocol commands
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29864
diff
changeset
|
882 -------- |
80c11c1a64bf
help: document wire protocol commands
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29864
diff
changeset
|
883 |
80c11c1a64bf
help: document wire protocol commands
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29864
diff
changeset
|
884 Send a bundle containing data (usually changegroup data) to the server. |
80c11c1a64bf
help: document wire protocol commands
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29864
diff
changeset
|
885 |
80c11c1a64bf
help: document wire protocol commands
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29864
diff
changeset
|
886 Accepts the argument ``heads``, which is a space-delimited list of hex nodes |
80c11c1a64bf
help: document wire protocol commands
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29864
diff
changeset
|
887 corresponding to server repository heads observed by the client. This is used |
80c11c1a64bf
help: document wire protocol commands
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29864
diff
changeset
|
888 to detect race conditions and abort push operations before a server performs |
80c11c1a64bf
help: document wire protocol commands
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29864
diff
changeset
|
889 too much work or a client transfers too much data. |
80c11c1a64bf
help: document wire protocol commands
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29864
diff
changeset
|
890 |
80c11c1a64bf
help: document wire protocol commands
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29864
diff
changeset
|
891 The request payload consists of a bundle to be applied to the repository, |
80c11c1a64bf
help: document wire protocol commands
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29864
diff
changeset
|
892 similarly to as if :hg:`unbundle` were called. |
80c11c1a64bf
help: document wire protocol commands
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29864
diff
changeset
|
893 |
80c11c1a64bf
help: document wire protocol commands
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29864
diff
changeset
|
894 In most scenarios, a special ``push response`` type is returned. This type |
80c11c1a64bf
help: document wire protocol commands
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29864
diff
changeset
|
895 contains an integer describing the change in heads as a result of the |
80c11c1a64bf
help: document wire protocol commands
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29864
diff
changeset
|
896 operation. A value of ``0`` indicates nothing changed. ``1`` means the number |
80c11c1a64bf
help: document wire protocol commands
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29864
diff
changeset
|
897 of heads remained the same. Values ``2`` and larger indicate the number of |
80c11c1a64bf
help: document wire protocol commands
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29864
diff
changeset
|
898 added heads minus 1. e.g. ``3`` means 2 heads were added. Negative values |
80c11c1a64bf
help: document wire protocol commands
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29864
diff
changeset
|
899 indicate the number of fewer heads, also off by 1. e.g. ``-2`` means there |
80c11c1a64bf
help: document wire protocol commands
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29864
diff
changeset
|
900 is 1 fewer head. |
80c11c1a64bf
help: document wire protocol commands
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29864
diff
changeset
|
901 |
80c11c1a64bf
help: document wire protocol commands
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29864
diff
changeset
|
902 The encoding of the ``push response`` type varies by transport. |
80c11c1a64bf
help: document wire protocol commands
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29864
diff
changeset
|
903 |
80c11c1a64bf
help: document wire protocol commands
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29864
diff
changeset
|
904 For the SSH transport, this type is composed of 2 ``string`` responses: an |
80c11c1a64bf
help: document wire protocol commands
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29864
diff
changeset
|
905 empty response (``0\n``) followed by the integer result value. e.g. |
80c11c1a64bf
help: document wire protocol commands
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29864
diff
changeset
|
906 ``1\n2``. So the full response might be ``0\n1\n2``. |
80c11c1a64bf
help: document wire protocol commands
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29864
diff
changeset
|
907 |
80c11c1a64bf
help: document wire protocol commands
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29864
diff
changeset
|
908 For the HTTP transport, the response is a ``string`` type composed of an |
80c11c1a64bf
help: document wire protocol commands
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29864
diff
changeset
|
909 integer result value followed by a newline (``\n``) followed by string |
80c11c1a64bf
help: document wire protocol commands
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29864
diff
changeset
|
910 content holding server output that should be displayed on the client (output |
80c11c1a64bf
help: document wire protocol commands
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29864
diff
changeset
|
911 hooks, etc). |
80c11c1a64bf
help: document wire protocol commands
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29864
diff
changeset
|
912 |
80c11c1a64bf
help: document wire protocol commands
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29864
diff
changeset
|
913 In some cases, the server may respond with a ``bundle2`` bundle. In this |
80c11c1a64bf
help: document wire protocol commands
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29864
diff
changeset
|
914 case, the response type is ``stream``. For the HTTP transport, the response |
80c11c1a64bf
help: document wire protocol commands
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29864
diff
changeset
|
915 is zlib compressed. |
80c11c1a64bf
help: document wire protocol commands
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29864
diff
changeset
|
916 |
80c11c1a64bf
help: document wire protocol commands
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29864
diff
changeset
|
917 The server may also respond with a generic error type, which contains a string |
80c11c1a64bf
help: document wire protocol commands
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29864
diff
changeset
|
918 indicating the failure. |