diff tests/test-http-api-httpv2.t @ 40176:41263df08109

wireprotov2: change how revisions are specified to changesetdata

Right now, we have a handful of arguments for specifying the revisions
whose data should be returned. Defining how all these arguments
interact when various combinations are present is difficult.

This commit establishes a new, generic mechanism for specifying
revisions. Instead of a hodgepodge of arguments defining things, we
have a list of dicts that specify revision selectors. The final set
of revisions is a union of all these selectors.

We implement support for specifying revisions based on:

* An explicit list of changeset revisions
* An explicit list of changeset revisions plus ancestry depth
* A DAG range between changeset roots and heads

If you squint hard enough, this problem has already been solved by
revsets. But I'm reluctant to expose revsets to the wire protocol
because that would require servers to implement a revset parser.
Plus there are security and performance implications: the set
of revision selectors needs to be narrowly and specifically tailored
for what is appropriate to be executing on a server. Perhaps there
would be a way for us to express the "parse tree" of a revset
query, for example. I'm not sure. We can explore this space another
time. For now, the new mechanism should bring sufficient flexibility
while remaining relatively simple.

The selector "types" are prefixed with "changeset" because I plan
to add manifest and file-flavored selectors as well. This will enable
us to e.g. select file revisions based on a range of changeset
revisions.

Differential Revision: https://phab.mercurial-scm.org/D4979

--- a/tests/test-http-api-httpv2.t	Mon Oct 08 17:54:14 2018 -0700
+++ b/tests/test-http-api-httpv2.t	Mon Oct 08 18:17:12 2018 -0700
@@ -18,7 +18,7 @@
   >     user-agent: test
   > EOF
   using raw connection to peer
-  s>     GET /api/exp-http-v2-0002 HTTP/1.1\r\n
+  s>     GET /api/exp-http-v2-0003 HTTP/1.1\r\n
   s>     Accept-Encoding: identity\r\n
   s>     user-agent: test\r\n
   s>     host: $LOCALIP:$HGPORT\r\n (glob)
@@ -30,7 +30,7 @@
   s>     Content-Type: text/plain\r\n
   s>     Content-Length: 33\r\n
   s>     \r\n
-  s>     API exp-http-v2-0002 not enabled\n
+  s>     API exp-http-v2-0003 not enabled\n
 
 Restart server with support for HTTP v2 API
 
@@ -46,7 +46,7 @@
   >     user-agent: test
   > EOF
   using raw connection to peer
-  s>     POST /api/exp-http-v2-0002/ro/badcommand HTTP/1.1\r\n
+  s>     POST /api/exp-http-v2-0003/ro/badcommand HTTP/1.1\r\n
   s>     Accept-Encoding: identity\r\n
   s>     user-agent: test\r\n
   s>     host: $LOCALIP:$HGPORT\r\n (glob)
@@ -67,7 +67,7 @@
   >     user-agent: test
   > EOF
   using raw connection to peer
-  s>     GET /api/exp-http-v2-0002/ro/customreadonly HTTP/1.1\r\n
+  s>     GET /api/exp-http-v2-0003/ro/customreadonly HTTP/1.1\r\n
   s>     Accept-Encoding: identity\r\n
   s>     user-agent: test\r\n
   s>     host: $LOCALIP:$HGPORT\r\n (glob)
@@ -88,7 +88,7 @@
   >     user-agent: test
   > EOF
   using raw connection to peer
-  s>     POST /api/exp-http-v2-0002/ro/customreadonly HTTP/1.1\r\n
+  s>     POST /api/exp-http-v2-0003/ro/customreadonly HTTP/1.1\r\n
   s>     Accept-Encoding: identity\r\n
   s>     user-agent: test\r\n
   s>     host: $LOCALIP:$HGPORT\r\n (glob)
@@ -110,7 +110,7 @@
   >     user-agent: test
   > EOF
   using raw connection to peer
-  s>     POST /api/exp-http-v2-0002/ro/customreadonly HTTP/1.1\r\n
+  s>     POST /api/exp-http-v2-0003/ro/customreadonly HTTP/1.1\r\n
   s>     Accept-Encoding: identity\r\n
   s>     accept: invalid\r\n
   s>     user-agent: test\r\n
@@ -134,7 +134,7 @@
   >     content-type: badmedia
   > EOF
   using raw connection to peer
-  s>     POST /api/exp-http-v2-0002/ro/customreadonly HTTP/1.1\r\n
+  s>     POST /api/exp-http-v2-0003/ro/customreadonly HTTP/1.1\r\n
   s>     Accept-Encoding: identity\r\n
   s>     accept: application/mercurial-exp-framing-0006\r\n
   s>     content-type: badmedia\r\n
@@ -160,7 +160,7 @@
   >     frame 1 1 stream-begin command-request new cbor:{b'name': b'customreadonly'}
   > EOF
   using raw connection to peer
-  s>     POST /api/exp-http-v2-0002/ro/customreadonly HTTP/1.1\r\n
+  s>     POST /api/exp-http-v2-0003/ro/customreadonly HTTP/1.1\r\n
   s>     Accept-Encoding: identity\r\n
   s>     *\r\n (glob)
   s>     content-type: application/mercurial-exp-framing-0006\r\n
@@ -196,7 +196,7 @@
   > EOF
   creating http peer for wire protocol version 2
   sending customreadonly command
-  s>     POST /api/exp-http-v2-0002/ro/customreadonly HTTP/1.1\r\n
+  s>     POST /api/exp-http-v2-0003/ro/customreadonly HTTP/1.1\r\n
   s>     Accept-Encoding: identity\r\n
   s>     accept: application/mercurial-exp-framing-0006\r\n
   s>     content-type: application/mercurial-exp-framing-0006\r\n
@@ -247,7 +247,7 @@
   >     user-agent: test
   > EOF
   using raw connection to peer
-  s>     GET /api/exp-http-v2-0002/rw/customreadonly HTTP/1.1\r\n
+  s>     GET /api/exp-http-v2-0003/rw/customreadonly HTTP/1.1\r\n
   s>     Accept-Encoding: identity\r\n
   s>     user-agent: test\r\n
   s>     host: $LOCALIP:$HGPORT\r\n (glob)
@@ -268,7 +268,7 @@
   >     user-agent: test
   > EOF
   using raw connection to peer
-  s>     GET /api/exp-http-v2-0002/rw/badcommand HTTP/1.1\r\n
+  s>     GET /api/exp-http-v2-0003/rw/badcommand HTTP/1.1\r\n
   s>     Accept-Encoding: identity\r\n
   s>     user-agent: test\r\n
   s>     host: $LOCALIP:$HGPORT\r\n (glob)
@@ -289,7 +289,7 @@
   >     user-agent: test
   > EOF
   using raw connection to peer
-  s>     POST /api/exp-http-v2-0002/rw/customreadonly HTTP/1.1\r\n
+  s>     POST /api/exp-http-v2-0003/rw/customreadonly HTTP/1.1\r\n
   s>     Accept-Encoding: identity\r\n
   s>     user-agent: test\r\n
   s>     host: $LOCALIP:$HGPORT\r\n (glob)
@@ -327,7 +327,7 @@
   >     frame 1 1 stream-begin command-request new cbor:{b'name': b'customreadonly'}
   > EOF
   using raw connection to peer
-  s>     POST /api/exp-http-v2-0002/rw/customreadonly HTTP/1.1\r\n
+  s>     POST /api/exp-http-v2-0003/rw/customreadonly HTTP/1.1\r\n
   s>     Accept-Encoding: identity\r\n
   s>     accept: application/mercurial-exp-framing-0006\r\n
   s>     content-type: application/mercurial-exp-framing-0006\r\n
@@ -366,7 +366,7 @@
   >     accept: $MEDIATYPE
   > EOF
   using raw connection to peer
-  s>     POST /api/exp-http-v2-0002/rw/badcommand HTTP/1.1\r\n
+  s>     POST /api/exp-http-v2-0003/rw/badcommand HTTP/1.1\r\n
   s>     Accept-Encoding: identity\r\n
   s>     accept: application/mercurial-exp-framing-0006\r\n
   s>     user-agent: test\r\n
@@ -388,7 +388,7 @@
   >     user-agent: test
   > EOF
   using raw connection to peer
-  s>     POST /api/exp-http-v2-0002/ro/debugreflect HTTP/1.1\r\n
+  s>     POST /api/exp-http-v2-0003/ro/debugreflect HTTP/1.1\r\n
   s>     Accept-Encoding: identity\r\n
   s>     user-agent: test\r\n
   s>     host: $LOCALIP:$HGPORT\r\n (glob)
@@ -428,7 +428,7 @@
   >     frame 1 1 stream-begin command-request new cbor:{b'name': b'command1', b'args': {b'foo': b'val1', b'bar1': b'val'}}
   > EOF
   using raw connection to peer
-  s>     POST /api/exp-http-v2-0002/ro/debugreflect HTTP/1.1\r\n
+  s>     POST /api/exp-http-v2-0003/ro/debugreflect HTTP/1.1\r\n
   s>     Accept-Encoding: identity\r\n
   s>     accept: application/mercurial-exp-framing-0006\r\n
   s>     content-type: application/mercurial-exp-framing-0006\r\n
@@ -459,7 +459,7 @@
   >     frame 1 1 stream-begin command-request new cbor:{b'name': b'customreadonly'}
   > EOF
   using raw connection to peer
-  s>     POST /api/exp-http-v2-0002/ro/customreadonly HTTP/1.1\r\n
+  s>     POST /api/exp-http-v2-0003/ro/customreadonly HTTP/1.1\r\n
   s>     Accept-Encoding: identity\r\n
   s>     accept: application/mercurial-exp-framing-0006\r\n
   s>     content-type: application/mercurial-exp-framing-0006\r\n
@@ -501,7 +501,7 @@
   >     frame 3 1 0 command-request new cbor:{b'name': b'customreadonly'}
   > EOF
   using raw connection to peer
-  s>     POST /api/exp-http-v2-0002/ro/multirequest HTTP/1.1\r\n
+  s>     POST /api/exp-http-v2-0003/ro/multirequest HTTP/1.1\r\n
   s>     Accept-Encoding: identity\r\n
   s>     *\r\n (glob)
   s>     *\r\n (glob)
@@ -554,7 +554,7 @@
   >     frame 1 1 0 command-request continuation IbookmarksDnameHlistkeys
   > EOF
   using raw connection to peer
-  s>     POST /api/exp-http-v2-0002/ro/multirequest HTTP/1.1\r\n
+  s>     POST /api/exp-http-v2-0003/ro/multirequest HTTP/1.1\r\n
   s>     Accept-Encoding: identity\r\n
   s>     accept: application/mercurial-exp-framing-0006\r\n
   s>     content-type: application/mercurial-exp-framing-0006\r\n
@@ -619,7 +619,7 @@
   >     frame 1 1 stream-begin command-request new cbor:{b'name': b'pushkey'}
   > EOF
   using raw connection to peer
-  s>     POST /api/exp-http-v2-0002/ro/multirequest HTTP/1.1\r\n
+  s>     POST /api/exp-http-v2-0003/ro/multirequest HTTP/1.1\r\n
   s>     Accept-Encoding: identity\r\n
   s>     accept: application/mercurial-exp-framing-0006\r\n
   s>     content-type: application/mercurial-exp-framing-0006\r\n
@@ -645,7 +645,7 @@
   creating http peer for wire protocol version 2
   sending heads command
   wire protocol version 2 encoder referenced in config (badencoder) is not known; ignoring
-  s>     POST /api/exp-http-v2-0002/ro/heads HTTP/1.1\r\n
+  s>     POST /api/exp-http-v2-0003/ro/heads HTTP/1.1\r\n
   s>     Accept-Encoding: identity\r\n
   s>     accept: application/mercurial-exp-framing-0006\r\n
   s>     content-type: application/mercurial-exp-framing-0006\r\n
@@ -694,7 +694,7 @@
   > EOF
   creating http peer for wire protocol version 2
   sending heads command
-  s>     POST /api/exp-http-v2-0002/ro/heads HTTP/1.1\r\n
+  s>     POST /api/exp-http-v2-0003/ro/heads HTTP/1.1\r\n
   s>     Accept-Encoding: identity\r\n
   s>     accept: application/mercurial-exp-framing-0006\r\n
   s>     content-type: application/mercurial-exp-framing-0006\r\n