Mercurial > hg
annotate tests/test-arbitraryfilectx.t @ 36367:043e77f3be09
sshpeer: return framed file object when needed
Currently, wireproto.wirepeer has a default implementation of
_submitbatch() and sshv1peer has a very similar implementation.
The main difference is that sshv1peer is aware of the total amount
of bytes it can read whereas the default implementation reads the
stream until no more data is returned. The default implementation
works for HTTP, since there is a known end to HTTP responses (either
Content-Length or 0 sized chunk).
This commit teaches sshv1peer to use our just-introduced "cappedreader"
class for wrapping a file object to limit the number of bytes that
can be read. We do this by introducing an argument to specify whether
the response is framed. If set, we returned a cappedreader instance
instead of the raw pipe.
_call() always has framed responses. So we set this argument
unconditionally and then .read() the entirety of the result.
Strictly speaking, we don't need to use cappedreader in this case
and can inline frame decoding/read logic. But I like when things
are consistent. The overhead should be negligible.
_callstream() and _callcompressable() are special: whether framing
is used depends on the specific command. So, we define a set
of commands that have framed response. It currently only
contains "batch."
As a result of this change, the one-off implementation of
_submitbatch() in sshv1peer can be removed since it is now
safe to .read() the response's file object until end of stream.
cappedreader takes care of not overrunning the frame.
Differential Revision: https://phab.mercurial-scm.org/D2380
author | Gregory Szorc <gregory.szorc@gmail.com> |
---|---|
date | Wed, 21 Feb 2018 08:35:48 -0800 |
parents | a36d3c8a0e41 |
children | b4d1c09b754b |
rev | line source |
---|---|
34835
14c87708f432
arbitraryfilecontext: skip the cmp fast path if any side is a symlink
Phil Cohen <phillco@fb.com>
parents:
diff
changeset
|
1 Setup: |
14c87708f432
arbitraryfilecontext: skip the cmp fast path if any side is a symlink
Phil Cohen <phillco@fb.com>
parents:
diff
changeset
|
2 $ cat > eval.py <<EOF |
14c87708f432
arbitraryfilecontext: skip the cmp fast path if any side is a symlink
Phil Cohen <phillco@fb.com>
parents:
diff
changeset
|
3 > from __future__ import absolute_import |
14c87708f432
arbitraryfilecontext: skip the cmp fast path if any side is a symlink
Phil Cohen <phillco@fb.com>
parents:
diff
changeset
|
4 > import filecmp |
14c87708f432
arbitraryfilecontext: skip the cmp fast path if any side is a symlink
Phil Cohen <phillco@fb.com>
parents:
diff
changeset
|
5 > from mercurial import commands, context, registrar |
14c87708f432
arbitraryfilecontext: skip the cmp fast path if any side is a symlink
Phil Cohen <phillco@fb.com>
parents:
diff
changeset
|
6 > cmdtable = {} |
14c87708f432
arbitraryfilecontext: skip the cmp fast path if any side is a symlink
Phil Cohen <phillco@fb.com>
parents:
diff
changeset
|
7 > command = registrar.command(cmdtable) |
14c87708f432
arbitraryfilecontext: skip the cmp fast path if any side is a symlink
Phil Cohen <phillco@fb.com>
parents:
diff
changeset
|
8 > @command(b'eval', [], 'hg eval CMD') |
14c87708f432
arbitraryfilecontext: skip the cmp fast path if any side is a symlink
Phil Cohen <phillco@fb.com>
parents:
diff
changeset
|
9 > def eval_(ui, repo, *cmds, **opts): |
35947
a36d3c8a0e41
py3: add b'' prefixes to string literals in test files
Pulkit Goyal <7895pulkit@gmail.com>
parents:
34936
diff
changeset
|
10 > cmd = b" ".join(cmds) |
34835
14c87708f432
arbitraryfilecontext: skip the cmp fast path if any side is a symlink
Phil Cohen <phillco@fb.com>
parents:
diff
changeset
|
11 > res = str(eval(cmd, globals(), locals())) |
35947
a36d3c8a0e41
py3: add b'' prefixes to string literals in test files
Pulkit Goyal <7895pulkit@gmail.com>
parents:
34936
diff
changeset
|
12 > ui.warn(b"%s" % res) |
34835
14c87708f432
arbitraryfilecontext: skip the cmp fast path if any side is a symlink
Phil Cohen <phillco@fb.com>
parents:
diff
changeset
|
13 > EOF |
14c87708f432
arbitraryfilecontext: skip the cmp fast path if any side is a symlink
Phil Cohen <phillco@fb.com>
parents:
diff
changeset
|
14 |
14c87708f432
arbitraryfilecontext: skip the cmp fast path if any side is a symlink
Phil Cohen <phillco@fb.com>
parents:
diff
changeset
|
15 $ echo "[extensions]" >> $HGRCPATH |
14c87708f432
arbitraryfilecontext: skip the cmp fast path if any side is a symlink
Phil Cohen <phillco@fb.com>
parents:
diff
changeset
|
16 $ echo "eval=`pwd`/eval.py" >> $HGRCPATH |
14c87708f432
arbitraryfilecontext: skip the cmp fast path if any side is a symlink
Phil Cohen <phillco@fb.com>
parents:
diff
changeset
|
17 |
14c87708f432
arbitraryfilecontext: skip the cmp fast path if any side is a symlink
Phil Cohen <phillco@fb.com>
parents:
diff
changeset
|
18 Arbitraryfilectx.cmp does not follow symlinks: |
14c87708f432
arbitraryfilecontext: skip the cmp fast path if any side is a symlink
Phil Cohen <phillco@fb.com>
parents:
diff
changeset
|
19 $ mkdir case1 |
14c87708f432
arbitraryfilecontext: skip the cmp fast path if any side is a symlink
Phil Cohen <phillco@fb.com>
parents:
diff
changeset
|
20 $ cd case1 |
14c87708f432
arbitraryfilecontext: skip the cmp fast path if any side is a symlink
Phil Cohen <phillco@fb.com>
parents:
diff
changeset
|
21 $ hg init |
34936
9645c2a2bc2a
test-arbitraryfilectx: stabilize for Windows
Matt Harbison <matt_harbison@yahoo.com>
parents:
34835
diff
changeset
|
22 #if symlink |
34835
14c87708f432
arbitraryfilecontext: skip the cmp fast path if any side is a symlink
Phil Cohen <phillco@fb.com>
parents:
diff
changeset
|
23 $ printf "A" > real_A |
14c87708f432
arbitraryfilecontext: skip the cmp fast path if any side is a symlink
Phil Cohen <phillco@fb.com>
parents:
diff
changeset
|
24 $ printf "foo" > A |
14c87708f432
arbitraryfilecontext: skip the cmp fast path if any side is a symlink
Phil Cohen <phillco@fb.com>
parents:
diff
changeset
|
25 $ printf "foo" > B |
14c87708f432
arbitraryfilecontext: skip the cmp fast path if any side is a symlink
Phil Cohen <phillco@fb.com>
parents:
diff
changeset
|
26 $ ln -s A sym_A |
14c87708f432
arbitraryfilecontext: skip the cmp fast path if any side is a symlink
Phil Cohen <phillco@fb.com>
parents:
diff
changeset
|
27 $ hg add . |
14c87708f432
arbitraryfilecontext: skip the cmp fast path if any side is a symlink
Phil Cohen <phillco@fb.com>
parents:
diff
changeset
|
28 adding A |
14c87708f432
arbitraryfilecontext: skip the cmp fast path if any side is a symlink
Phil Cohen <phillco@fb.com>
parents:
diff
changeset
|
29 adding B |
14c87708f432
arbitraryfilecontext: skip the cmp fast path if any side is a symlink
Phil Cohen <phillco@fb.com>
parents:
diff
changeset
|
30 adding real_A |
14c87708f432
arbitraryfilecontext: skip the cmp fast path if any side is a symlink
Phil Cohen <phillco@fb.com>
parents:
diff
changeset
|
31 adding sym_A |
14c87708f432
arbitraryfilecontext: skip the cmp fast path if any side is a symlink
Phil Cohen <phillco@fb.com>
parents:
diff
changeset
|
32 $ hg commit -m "base" |
34936
9645c2a2bc2a
test-arbitraryfilectx: stabilize for Windows
Matt Harbison <matt_harbison@yahoo.com>
parents:
34835
diff
changeset
|
33 #else |
9645c2a2bc2a
test-arbitraryfilectx: stabilize for Windows
Matt Harbison <matt_harbison@yahoo.com>
parents:
34835
diff
changeset
|
34 $ hg import -q --bypass - <<EOF |
9645c2a2bc2a
test-arbitraryfilectx: stabilize for Windows
Matt Harbison <matt_harbison@yahoo.com>
parents:
34835
diff
changeset
|
35 > # HG changeset patch |
9645c2a2bc2a
test-arbitraryfilectx: stabilize for Windows
Matt Harbison <matt_harbison@yahoo.com>
parents:
34835
diff
changeset
|
36 > # User test |
9645c2a2bc2a
test-arbitraryfilectx: stabilize for Windows
Matt Harbison <matt_harbison@yahoo.com>
parents:
34835
diff
changeset
|
37 > # Date 0 0 |
9645c2a2bc2a
test-arbitraryfilectx: stabilize for Windows
Matt Harbison <matt_harbison@yahoo.com>
parents:
34835
diff
changeset
|
38 > base |
9645c2a2bc2a
test-arbitraryfilectx: stabilize for Windows
Matt Harbison <matt_harbison@yahoo.com>
parents:
34835
diff
changeset
|
39 > |
9645c2a2bc2a
test-arbitraryfilectx: stabilize for Windows
Matt Harbison <matt_harbison@yahoo.com>
parents:
34835
diff
changeset
|
40 > diff --git a/A b/A |
9645c2a2bc2a
test-arbitraryfilectx: stabilize for Windows
Matt Harbison <matt_harbison@yahoo.com>
parents:
34835
diff
changeset
|
41 > new file mode 100644 |
9645c2a2bc2a
test-arbitraryfilectx: stabilize for Windows
Matt Harbison <matt_harbison@yahoo.com>
parents:
34835
diff
changeset
|
42 > --- /dev/null |
9645c2a2bc2a
test-arbitraryfilectx: stabilize for Windows
Matt Harbison <matt_harbison@yahoo.com>
parents:
34835
diff
changeset
|
43 > +++ b/A |
9645c2a2bc2a
test-arbitraryfilectx: stabilize for Windows
Matt Harbison <matt_harbison@yahoo.com>
parents:
34835
diff
changeset
|
44 > @@ -0,0 +1,1 @@ |
9645c2a2bc2a
test-arbitraryfilectx: stabilize for Windows
Matt Harbison <matt_harbison@yahoo.com>
parents:
34835
diff
changeset
|
45 > +foo |
9645c2a2bc2a
test-arbitraryfilectx: stabilize for Windows
Matt Harbison <matt_harbison@yahoo.com>
parents:
34835
diff
changeset
|
46 > \ No newline at end of file |
9645c2a2bc2a
test-arbitraryfilectx: stabilize for Windows
Matt Harbison <matt_harbison@yahoo.com>
parents:
34835
diff
changeset
|
47 > diff --git a/B b/B |
9645c2a2bc2a
test-arbitraryfilectx: stabilize for Windows
Matt Harbison <matt_harbison@yahoo.com>
parents:
34835
diff
changeset
|
48 > new file mode 100644 |
9645c2a2bc2a
test-arbitraryfilectx: stabilize for Windows
Matt Harbison <matt_harbison@yahoo.com>
parents:
34835
diff
changeset
|
49 > --- /dev/null |
9645c2a2bc2a
test-arbitraryfilectx: stabilize for Windows
Matt Harbison <matt_harbison@yahoo.com>
parents:
34835
diff
changeset
|
50 > +++ b/B |
9645c2a2bc2a
test-arbitraryfilectx: stabilize for Windows
Matt Harbison <matt_harbison@yahoo.com>
parents:
34835
diff
changeset
|
51 > @@ -0,0 +1,1 @@ |
9645c2a2bc2a
test-arbitraryfilectx: stabilize for Windows
Matt Harbison <matt_harbison@yahoo.com>
parents:
34835
diff
changeset
|
52 > +foo |
9645c2a2bc2a
test-arbitraryfilectx: stabilize for Windows
Matt Harbison <matt_harbison@yahoo.com>
parents:
34835
diff
changeset
|
53 > \ No newline at end of file |
9645c2a2bc2a
test-arbitraryfilectx: stabilize for Windows
Matt Harbison <matt_harbison@yahoo.com>
parents:
34835
diff
changeset
|
54 > diff --git a/real_A b/real_A |
9645c2a2bc2a
test-arbitraryfilectx: stabilize for Windows
Matt Harbison <matt_harbison@yahoo.com>
parents:
34835
diff
changeset
|
55 > new file mode 100644 |
9645c2a2bc2a
test-arbitraryfilectx: stabilize for Windows
Matt Harbison <matt_harbison@yahoo.com>
parents:
34835
diff
changeset
|
56 > --- /dev/null |
9645c2a2bc2a
test-arbitraryfilectx: stabilize for Windows
Matt Harbison <matt_harbison@yahoo.com>
parents:
34835
diff
changeset
|
57 > +++ b/real_A |
9645c2a2bc2a
test-arbitraryfilectx: stabilize for Windows
Matt Harbison <matt_harbison@yahoo.com>
parents:
34835
diff
changeset
|
58 > @@ -0,0 +1,1 @@ |
9645c2a2bc2a
test-arbitraryfilectx: stabilize for Windows
Matt Harbison <matt_harbison@yahoo.com>
parents:
34835
diff
changeset
|
59 > +A |
9645c2a2bc2a
test-arbitraryfilectx: stabilize for Windows
Matt Harbison <matt_harbison@yahoo.com>
parents:
34835
diff
changeset
|
60 > \ No newline at end of file |
9645c2a2bc2a
test-arbitraryfilectx: stabilize for Windows
Matt Harbison <matt_harbison@yahoo.com>
parents:
34835
diff
changeset
|
61 > diff --git a/sym_A b/sym_A |
9645c2a2bc2a
test-arbitraryfilectx: stabilize for Windows
Matt Harbison <matt_harbison@yahoo.com>
parents:
34835
diff
changeset
|
62 > new file mode 120000 |
9645c2a2bc2a
test-arbitraryfilectx: stabilize for Windows
Matt Harbison <matt_harbison@yahoo.com>
parents:
34835
diff
changeset
|
63 > --- /dev/null |
9645c2a2bc2a
test-arbitraryfilectx: stabilize for Windows
Matt Harbison <matt_harbison@yahoo.com>
parents:
34835
diff
changeset
|
64 > +++ b/sym_A |
9645c2a2bc2a
test-arbitraryfilectx: stabilize for Windows
Matt Harbison <matt_harbison@yahoo.com>
parents:
34835
diff
changeset
|
65 > @@ -0,0 +1,1 @@ |
9645c2a2bc2a
test-arbitraryfilectx: stabilize for Windows
Matt Harbison <matt_harbison@yahoo.com>
parents:
34835
diff
changeset
|
66 > +A |
9645c2a2bc2a
test-arbitraryfilectx: stabilize for Windows
Matt Harbison <matt_harbison@yahoo.com>
parents:
34835
diff
changeset
|
67 > \ No newline at end of file |
9645c2a2bc2a
test-arbitraryfilectx: stabilize for Windows
Matt Harbison <matt_harbison@yahoo.com>
parents:
34835
diff
changeset
|
68 > EOF |
9645c2a2bc2a
test-arbitraryfilectx: stabilize for Windows
Matt Harbison <matt_harbison@yahoo.com>
parents:
34835
diff
changeset
|
69 $ hg up -q |
9645c2a2bc2a
test-arbitraryfilectx: stabilize for Windows
Matt Harbison <matt_harbison@yahoo.com>
parents:
34835
diff
changeset
|
70 #endif |
34835
14c87708f432
arbitraryfilecontext: skip the cmp fast path if any side is a symlink
Phil Cohen <phillco@fb.com>
parents:
diff
changeset
|
71 |
14c87708f432
arbitraryfilecontext: skip the cmp fast path if any side is a symlink
Phil Cohen <phillco@fb.com>
parents:
diff
changeset
|
72 These files are different and should return True (different): |
14c87708f432
arbitraryfilecontext: skip the cmp fast path if any side is a symlink
Phil Cohen <phillco@fb.com>
parents:
diff
changeset
|
73 (Note that filecmp.cmp's return semantics are inverted from ours, so we invert |
14c87708f432
arbitraryfilecontext: skip the cmp fast path if any side is a symlink
Phil Cohen <phillco@fb.com>
parents:
diff
changeset
|
74 for simplicity): |
14c87708f432
arbitraryfilecontext: skip the cmp fast path if any side is a symlink
Phil Cohen <phillco@fb.com>
parents:
diff
changeset
|
75 $ hg eval "context.arbitraryfilectx('A', repo).cmp(repo[None]['real_A'])" |
14c87708f432
arbitraryfilecontext: skip the cmp fast path if any side is a symlink
Phil Cohen <phillco@fb.com>
parents:
diff
changeset
|
76 True (no-eol) |
14c87708f432
arbitraryfilecontext: skip the cmp fast path if any side is a symlink
Phil Cohen <phillco@fb.com>
parents:
diff
changeset
|
77 $ hg eval "not filecmp.cmp('A', 'real_A')" |
14c87708f432
arbitraryfilecontext: skip the cmp fast path if any side is a symlink
Phil Cohen <phillco@fb.com>
parents:
diff
changeset
|
78 True (no-eol) |
14c87708f432
arbitraryfilecontext: skip the cmp fast path if any side is a symlink
Phil Cohen <phillco@fb.com>
parents:
diff
changeset
|
79 |
14c87708f432
arbitraryfilecontext: skip the cmp fast path if any side is a symlink
Phil Cohen <phillco@fb.com>
parents:
diff
changeset
|
80 These files are identical and should return False (same): |
14c87708f432
arbitraryfilecontext: skip the cmp fast path if any side is a symlink
Phil Cohen <phillco@fb.com>
parents:
diff
changeset
|
81 $ hg eval "context.arbitraryfilectx('A', repo).cmp(repo[None]['A'])" |
14c87708f432
arbitraryfilecontext: skip the cmp fast path if any side is a symlink
Phil Cohen <phillco@fb.com>
parents:
diff
changeset
|
82 False (no-eol) |
14c87708f432
arbitraryfilecontext: skip the cmp fast path if any side is a symlink
Phil Cohen <phillco@fb.com>
parents:
diff
changeset
|
83 $ hg eval "context.arbitraryfilectx('A', repo).cmp(repo[None]['B'])" |
14c87708f432
arbitraryfilecontext: skip the cmp fast path if any side is a symlink
Phil Cohen <phillco@fb.com>
parents:
diff
changeset
|
84 False (no-eol) |
14c87708f432
arbitraryfilecontext: skip the cmp fast path if any side is a symlink
Phil Cohen <phillco@fb.com>
parents:
diff
changeset
|
85 $ hg eval "not filecmp.cmp('A', 'B')" |
14c87708f432
arbitraryfilecontext: skip the cmp fast path if any side is a symlink
Phil Cohen <phillco@fb.com>
parents:
diff
changeset
|
86 False (no-eol) |
14c87708f432
arbitraryfilecontext: skip the cmp fast path if any side is a symlink
Phil Cohen <phillco@fb.com>
parents:
diff
changeset
|
87 |
14c87708f432
arbitraryfilecontext: skip the cmp fast path if any side is a symlink
Phil Cohen <phillco@fb.com>
parents:
diff
changeset
|
88 This comparison should also return False, since A and sym_A are substantially |
14c87708f432
arbitraryfilecontext: skip the cmp fast path if any side is a symlink
Phil Cohen <phillco@fb.com>
parents:
diff
changeset
|
89 the same in the eyes of ``filectx.cmp``, which looks at data only. |
14c87708f432
arbitraryfilecontext: skip the cmp fast path if any side is a symlink
Phil Cohen <phillco@fb.com>
parents:
diff
changeset
|
90 $ hg eval "context.arbitraryfilectx('real_A', repo).cmp(repo[None]['sym_A'])" |
14c87708f432
arbitraryfilecontext: skip the cmp fast path if any side is a symlink
Phil Cohen <phillco@fb.com>
parents:
diff
changeset
|
91 False (no-eol) |
14c87708f432
arbitraryfilecontext: skip the cmp fast path if any side is a symlink
Phil Cohen <phillco@fb.com>
parents:
diff
changeset
|
92 |
14c87708f432
arbitraryfilecontext: skip the cmp fast path if any side is a symlink
Phil Cohen <phillco@fb.com>
parents:
diff
changeset
|
93 A naive use of filecmp on those two would wrongly return True, since it follows |
14c87708f432
arbitraryfilecontext: skip the cmp fast path if any side is a symlink
Phil Cohen <phillco@fb.com>
parents:
diff
changeset
|
94 the symlink to "A", which has different contents. |
34936
9645c2a2bc2a
test-arbitraryfilectx: stabilize for Windows
Matt Harbison <matt_harbison@yahoo.com>
parents:
34835
diff
changeset
|
95 #if symlink |
34835
14c87708f432
arbitraryfilecontext: skip the cmp fast path if any side is a symlink
Phil Cohen <phillco@fb.com>
parents:
diff
changeset
|
96 $ hg eval "not filecmp.cmp('real_A', 'sym_A')" |
14c87708f432
arbitraryfilecontext: skip the cmp fast path if any side is a symlink
Phil Cohen <phillco@fb.com>
parents:
diff
changeset
|
97 True (no-eol) |
34936
9645c2a2bc2a
test-arbitraryfilectx: stabilize for Windows
Matt Harbison <matt_harbison@yahoo.com>
parents:
34835
diff
changeset
|
98 #else |
9645c2a2bc2a
test-arbitraryfilectx: stabilize for Windows
Matt Harbison <matt_harbison@yahoo.com>
parents:
34835
diff
changeset
|
99 $ hg eval "not filecmp.cmp('real_A', 'sym_A')" |
9645c2a2bc2a
test-arbitraryfilectx: stabilize for Windows
Matt Harbison <matt_harbison@yahoo.com>
parents:
34835
diff
changeset
|
100 False (no-eol) |
9645c2a2bc2a
test-arbitraryfilectx: stabilize for Windows
Matt Harbison <matt_harbison@yahoo.com>
parents:
34835
diff
changeset
|
101 #endif |