upstream/mercurial-mirror Files · tests/test-issue1175.t

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

Meirambek Omyrzak - - Load All Authors

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        Matt Mackall
    
urls: bulk-change BTS urls to new location

              r26420
            
      https://bz.mercurial-scm.org/1175

        Adrian Buehlmann
    
tests: unify test-issue*

              r12195
            
        $ hg init

        $ touch a

        $ hg ci -Am0

        adding a

        $ hg mv a a1

        $ hg ci -m1

        $ hg co 0

        1 files updated, 0 files merged, 1 files removed, 0 files unresolved

        $ hg mv a a2

        $ hg up

        Dan Villiom Podlaski Christiansen
    
merge: make 'diverging renames' diagnostic a more helpful note....

              r12757
            
        note: possible conflict - a was renamed multiple times to:

        Adrian Buehlmann
    
tests: unify test-issue*

              r12195
            
         a2

         a1

        1 files updated, 0 files merged, 0 files removed, 0 files unresolved

        $ hg ci -m2

        $ touch a

        $ hg ci -Am3

        adding a

        $ hg mv a b

        $ hg ci -Am4 a

        $ hg ci --debug --traceback -Am5 b

        Mads Kiilerich
    
localrepo: show headline notes in commitctx before showing filenames...

              r23749
            
        committing files:

        Adrian Buehlmann
    
tests: unify test-issue*

              r12195
            
        b

        Ryan McElroy
    
commit: remove reverse search for copy source when not in parent (issue4476)...

              r23929
            
        warning: can't find ancestor for 'b' copied from 'a'!

        Mads Kiilerich
    
localrepo: show headline notes in commitctx before showing filenames...

              r23749
            
        committing manifest

        committing changelog

        Pierre-Yves David
    
caches: move the 'updating the branch cache' message in 'updatecaches'...

              r32267
            
        updating the branch cache

        Ryan McElroy
    
commit: remove reverse search for copy source when not in parent (issue4476)...

              r23929
            
        committed changeset 5:83a687e8a97c80992ba385bbfd766be181bfb1d1

        Adrian Buehlmann
    
tests: unify test-issue*

              r12195
            
        $ hg verify

        checking changesets

        checking manifests

        crosschecking files in changesets and manifests

        checking files

        Meirambek Omyrzak
    
verify: make output less confusing (issue5924)...

              r39525
            
        checked 6 changesets with 4 changes to 4 files

        Adrian Buehlmann
    
tests: unify test-issue*

              r12195
            
        $ hg export --git tip

        # HG changeset patch

        # User test

        # Date 0 0

        Mads Kiilerich
    
export: show 'Date' header in a format that also is readable for humans...

              r18648
            
        #      Thu Jan 01 00:00:00 1970 +0000

        Ryan McElroy
    
commit: remove reverse search for copy source when not in parent (issue4476)...

              r23929
            
        # Node ID 83a687e8a97c80992ba385bbfd766be181bfb1d1

        Matt Mackall
    
setparents: drop copies from dropped p2 (issue3843)

              r18739
            
        # Parent  1d1625283f71954f21d14c3d44d0ad3c019c597f

        Adrian Buehlmann
    
tests: unify test-issue*

              r12195
            
        5

        diff --git a/b b/b

        new file mode 100644

        av6
    
tests: update bugzilla link in test-issue1175.t

              r29680
            
      https://bz.mercurial-scm.org/show_bug.cgi?id=4476

        Ryan McElroy
    
commit: remove reverse search for copy source when not in parent (issue4476)...

              r23929
            
        $ hg init foo

        $ cd foo

        $ touch a && hg ci -Aqm a

        $ hg mv a b

        $ echo b1 >> b

        $ hg ci -Aqm b1

        $ hg up 0

        1 files updated, 0 files merged, 1 files removed, 0 files unresolved

        $ hg mv a b

        $ echo b2 >> b

        $ hg ci -Aqm b2

        $ hg graft 1

        grafting 1:5974126fad84 "b1"

        merging b

        Siddharth Agarwal
    
simplemerge: move conflict warning message to filemerge...

              r26614
            
        warning: conflicts while merging b! (edit, then use 'hg resolve --mark')

        Ryan McElroy
    
commit: remove reverse search for copy source when not in parent (issue4476)...

              r23929
            
        abort: unresolved conflicts, can't continue

        timeless
    
graft: use single quotes around command hint...

              r28963
            
        (use 'hg resolve' and 'hg graft --continue')

        Ryan McElroy
    
commit: remove reverse search for copy source when not in parent (issue4476)...

              r23929
            
        [255]

        $ echo a > b

        $ echo b3 >> b

        $ hg resolve --mark b

        (no more unresolved files)

        timeless
    
graft: hook afterresolvedstates

              r27625
            
        continue: hg graft --continue

        Ryan McElroy
    
commit: remove reverse search for copy source when not in parent (issue4476)...

              r23929
            
        $ hg graft --continue

        grafting 1:5974126fad84 "b1"

        warning: can't find ancestor for 'b' copied from 'a'!

        $ hg log -f b -T 'changeset:   {rev}:{node|short}\nsummary:     {desc}\n\n'

        changeset:   3:376d30ccffc0

        summary:     b1

        changeset:   2:416baaa2e5e4

        summary:     b2

        changeset:   0:3903775176ed

        summary:     a

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Matt Mackall urls: bulk-change BTS urls to new location	r26420	https://bz.mercurial-scm.org/1175
Adrian Buehlmann tests: unify test-issue*	r12195
		$ hg init
		$ touch a
		$ hg ci -Am0
		adding a

		$ hg mv a a1
		$ hg ci -m1

		$ hg co 0
		1 files updated, 0 files merged, 1 files removed, 0 files unresolved

		$ hg mv a a2
		$ hg up
Dan Villiom Podlaski Christiansen merge: make 'diverging renames' diagnostic a more helpful note....	r12757	note: possible conflict - a was renamed multiple times to:
Adrian Buehlmann tests: unify test-issue*	r12195	a2
		a1
		1 files updated, 0 files merged, 0 files removed, 0 files unresolved

		$ hg ci -m2

		$ touch a
		$ hg ci -Am3
		adding a

		$ hg mv a b
		$ hg ci -Am4 a

		$ hg ci --debug --traceback -Am5 b
Mads Kiilerich localrepo: show headline notes in commitctx before showing filenames...	r23749	committing files:
Adrian Buehlmann tests: unify test-issue*	r12195	b
Ryan McElroy commit: remove reverse search for copy source when not in parent (issue4476)...	r23929	warning: can't find ancestor for 'b' copied from 'a'!
Mads Kiilerich localrepo: show headline notes in commitctx before showing filenames...	r23749	committing manifest
		committing changelog
Pierre-Yves David caches: move the 'updating the branch cache' message in 'updatecaches'...	r32267	updating the branch cache
Ryan McElroy commit: remove reverse search for copy source when not in parent (issue4476)...	r23929	committed changeset 5:83a687e8a97c80992ba385bbfd766be181bfb1d1
Adrian Buehlmann tests: unify test-issue*	r12195
		$ hg verify
		checking changesets
		checking manifests
		crosschecking files in changesets and manifests
		checking files
Meirambek Omyrzak verify: make output less confusing (issue5924)...	r39525	checked 6 changesets with 4 changes to 4 files
Adrian Buehlmann tests: unify test-issue*	r12195
		$ hg export --git tip
		# HG changeset patch
		# User test
		# Date 0 0
Mads Kiilerich export: show 'Date' header in a format that also is readable for humans...	r18648	# Thu Jan 01 00:00:00 1970 +0000
Ryan McElroy commit: remove reverse search for copy source when not in parent (issue4476)...	r23929	# Node ID 83a687e8a97c80992ba385bbfd766be181bfb1d1
Matt Mackall setparents: drop copies from dropped p2 (issue3843)	r18739	# Parent 1d1625283f71954f21d14c3d44d0ad3c019c597f
Adrian Buehlmann tests: unify test-issue*	r12195	5

		diff --git a/b b/b
		new file mode 100644

av6 tests: update bugzilla link in test-issue1175.t	r29680	https://bz.mercurial-scm.org/show_bug.cgi?id=4476
Ryan McElroy commit: remove reverse search for copy source when not in parent (issue4476)...	r23929
		$ hg init foo
		$ cd foo
		$ touch a && hg ci -Aqm a
		$ hg mv a b
		$ echo b1 >> b
		$ hg ci -Aqm b1
		$ hg up 0
		1 files updated, 0 files merged, 1 files removed, 0 files unresolved
		$ hg mv a b
		$ echo b2 >> b
		$ hg ci -Aqm b2
		$ hg graft 1
		grafting 1:5974126fad84 "b1"
		merging b
Siddharth Agarwal simplemerge: move conflict warning message to filemerge...	r26614	warning: conflicts while merging b! (edit, then use 'hg resolve --mark')
Ryan McElroy commit: remove reverse search for copy source when not in parent (issue4476)...	r23929	abort: unresolved conflicts, can't continue
timeless graft: use single quotes around command hint...	r28963	(use 'hg resolve' and 'hg graft --continue')
Ryan McElroy commit: remove reverse search for copy source when not in parent (issue4476)...	r23929	[255]
		$ echo a > b
		$ echo b3 >> b
		$ hg resolve --mark b
		(no more unresolved files)
timeless graft: hook afterresolvedstates	r27625	continue: hg graft --continue
Ryan McElroy commit: remove reverse search for copy source when not in parent (issue4476)...	r23929	$ hg graft --continue
		grafting 1:5974126fad84 "b1"
		warning: can't find ancestor for 'b' copied from 'a'!
		$ hg log -f b -T 'changeset: {rev}:{node\|short}\nsummary: {desc}\n\n'
		changeset: 3:376d30ccffc0
		summary: b1

		changeset: 2:416baaa2e5e4
		summary: b2

		changeset: 0:3903775176ed
		summary: a