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wireprotov2: implement commands as a generator of objects...
wireprotov2: implement commands as a generator of objects Previously, wire protocol version 2 inherited version 1's model of having separate types to represent the results of different wire protocol commands. As I implemented more powerful commands in future commits, I found I was using a common pattern of returning a special type to hold a generator. This meant the command function required a closure to do most of the work. That made logic flow more difficult to follow. I also noticed that many commands were effectively a sequence of objects to be CBOR encoded. I think it makes sense to define version 2 commands as generators. This way, commands can simply emit the data structures they wish to send to the client. This eliminates the need for a closure in command functions and removes encoding from the bodies of commands. As part of this commit, the handling of response objects has been moved into the serverreactor class. This puts the reactor in the driver's seat with regards to CBOR encoding and error handling. Having error handling in the function that emits frames is particularly important because exceptions in that function can lead to things getting in a bad state: I'm fairly certain that uncaught exceptions in the frame generator were causing deadlocks. I also introduced a dedicated error type for explicit error reporting in command handlers. This will be used in subsequent commits. There's still a bit of work to be done here, especially around formalizing the error handling "protocol." I've added yet another TODO to track this so we don't forget. Test output changed because we're using generators and no longer know we are at the end of the data until we hit the end of the generator. This means we can't emit the end-of-stream flag until we've exhausted the generator. Hence the introduction of 0-sized end-of-stream frames. Differential Revision: https://phab.mercurial-scm.org/D4472

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test-casefolding.t
257 lines | 4.7 KiB | text/troff | Tads3Lexer
#require icasefs
$ hg debugfs | grep 'case-sensitive:'
case-sensitive: no
test file addition with bad case
$ hg init repo1
$ cd repo1
$ echo a > a
$ hg add A
$ hg st
A a
$ hg ci -m adda
$ hg manifest
a
$ cd ..
test case collision on rename (issue750)
$ hg init repo2
$ cd repo2
$ echo a > a
$ hg --debug ci -Am adda
adding a
committing files:
a
committing manifest
committing changelog
updating the branch cache
committed changeset 0:07f4944404050f47db2e5c5071e0e84e7a27bba9
Case-changing renames should work:
$ hg mv a A
$ hg mv A a
$ hg st
addremove after case-changing rename has no effect (issue4590)
$ hg mv a A
$ hg addremove
recording removal of a as rename to A (100% similar)
$ hg revert --all
forgetting A
undeleting a
test changing case of path components
$ mkdir D
$ echo b > D/b
$ hg ci -Am addb D/b
$ hg mv D/b d/b
D/b: not overwriting - file already committed
('hg rename --force' to replace the file by recording a rename)
[1]
$ hg mv D/b d/c
$ hg st
A D/c
R D/b
$ mv D temp
$ mv temp d
$ hg st
A D/c
R D/b
$ hg revert -aq
$ rm d/c
$ echo c > D/c
$ hg add D/c
$ hg st
A D/c
$ hg ci -m addc D/c
$ hg mv d/b d/e
$ hg st
A D/e
R D/b
$ hg revert -aq
$ rm d/e
$ hg mv d/b D/B
$ hg st
A D/B
R D/b
$ cd ..
test case collision between revisions (issue912)
$ hg init repo3
$ cd repo3
$ echo a > a
$ hg ci -Am adda
adding a
$ hg rm a
$ hg ci -Am removea
$ echo A > A
on linux hfs keeps the old case stored, force it
$ mv a aa
$ mv aa A
$ hg ci -Am addA
adding A
used to fail under case insensitive fs
$ hg up -C 0
1 files updated, 0 files merged, 1 files removed, 0 files unresolved
$ hg up -C
1 files updated, 0 files merged, 1 files removed, 0 files unresolved
no clobbering of untracked files with wrong casing
$ hg up -r null
0 files updated, 0 files merged, 1 files removed, 0 files unresolved
$ echo gold > a
$ hg up
A: untracked file differs
abort: untracked files in working directory differ from files in requested revision
[255]
$ cat a
gold
$ rm a
test that normal file in different case on target context is not
unlinked by largefiles extension.
$ cat >> .hg/hgrc <<EOF
> [extensions]
> largefiles=
> EOF
$ hg update -q -C 1
$ hg status -A
$ echo 'A as largefiles' > A
$ hg add --large A
$ hg commit -m '#3'
created new head
$ hg manifest -r 3
.hglf/A
$ hg manifest -r 0
a
$ hg update -q -C 0
$ hg status -A
C a
$ hg update -q -C 3
$ hg update -q 0
$ hg up -C -r 2
1 files updated, 0 files merged, 0 files removed, 0 files unresolved
$ hg mv A a
$ hg diff -g > rename.diff
$ hg ci -m 'A -> a'
$ hg up -q '.^'
$ hg import rename.diff -m "import rename A -> a"
applying rename.diff
$ hg st
? rename.diff
$ hg files
a
$ find * | sort
a
rename.diff
$ rm rename.diff
$ cd ..
issue 3342: file in nested directory causes unexpected abort
$ hg init issue3342
$ cd issue3342
$ mkdir -p a/B/c/D
$ echo e > a/B/c/D/e
$ hg add a/B/c/D/e
$ hg ci -m 'add e'
issue 4481: revert across case only renames
$ hg mv a/B/c/D/e a/B/c/d/E
$ hg ci -m "uppercase E"
$ echo 'foo' > a/B/c/D/E
$ hg ci -m 'e content change'
$ hg revert --all -r 0
removing a/B/c/D/E
adding a/B/c/D/e
$ find * | sort
a
a/B
a/B/c
a/B/c/D
a/B/c/D/e
a/B/c/D/e.orig
$ cd ..
issue 3340: mq does not handle case changes correctly
in addition to reported case, 'hg qrefresh' is also tested against
case changes.
$ echo "[extensions]" >> $HGRCPATH
$ echo "mq=" >> $HGRCPATH
$ hg init issue3340
$ cd issue3340
$ echo a > mIxEdCaSe
$ hg add mIxEdCaSe
$ hg commit -m '#0'
$ hg rename mIxEdCaSe tmp
$ hg rename tmp MiXeDcAsE
$ hg status -A
A MiXeDcAsE
mIxEdCaSe
R mIxEdCaSe
$ hg qnew changecase
$ hg status -A
C MiXeDcAsE
$ hg qpop -a
popping changecase
patch queue now empty
$ hg qnew refresh-casechange
$ hg status -A
C mIxEdCaSe
$ hg rename mIxEdCaSe tmp
$ hg rename tmp MiXeDcAsE
$ hg status -A
A MiXeDcAsE
mIxEdCaSe
R mIxEdCaSe
$ hg qrefresh
$ hg status -A
C MiXeDcAsE
$ hg qpop -a
popping refresh-casechange
patch queue now empty
$ hg qnew refresh-pattern
$ hg status
$ echo A > A
$ hg add
adding A
$ hg qrefresh a # issue 3271, qrefresh with file handled case wrong
$ hg status # empty status means the qrefresh worked
#if osx
We assume anyone running the tests on a case-insensitive volume on OS
X will be using HFS+. If that's not true, this test will fail.
$ rm A
>>> open(u'a\u200c'.encode('utf-8'), 'w').write('unicode is fun')
$ hg status
M A
#endif
$ cd ..