bundle2: increase payload part chunk size to 32kb
Bundle2 payload parts are framed chunks. Esentially, we obtain
data in equal size chunks of size `preferedchunksize` and emit those
to a generator. That generator is fed into a compressor (which can
be the no-op compressor, which just re-emits the generator). And
the output from the compressor likely goes to a file descriptor
or socket.
What this means is that small chunk sizes create more Python objects
and Python function calls than larger chunk sizes. And as we know,
Python object and function call overhead in performance sensitive
code matters (at least with CPython).
This commit increases the bundle2 part payload chunk size from 4k
to 32k. Practically speaking, this means that the chunks we feed
into a compressor (implemented in C code) or feed directly into a
file handle or socket write() are larger. It's possible the chunks
might be larger than what the receiver can handle in one logical
operation. But at that point, we're in C code, which is much more
efficient at dealing with splitting up the chunk and making multiple
function calls than Python is.
A downside to larger chunks is that the receiver has to wait for that
much data to arrive (either raw or from a decompressor) before it
can process the chunk. But 32kb still feels like a small buffer to
have to wait for. And in many cases, the client will convert from
8 read(4096) to 1 read(32768). That's happening in Python land. So
we cut down on the number of Python objects and function calls,
making the client faster as well. I don't think there are any
significant concerns to increasing the payload chunk size to 32kb.
The impact of this change on performance significant. Using `curl`
to obtain a stream clone bundle2 payload from a server on localhost
serving the mozilla-unified repository:
before: 20.78 user; 7.71 system; 80.5 MB/s
after: 13.90 user; 3.51 system; 132 MB/s
legacy: 9.72 user; 8.16 system; 132 MB/s
bundle2 stream clone generation is still more resource intensive than
legacy stream clone (that's likely because of the use of a
util.chunkbuffer). But the throughput is the same. We might
be in territory we're this is effectively a benchmark of the
networking stack or Python's syscall throughput.
From the client perspective, `hg clone -U --stream`:
before: 33.50 user; 7.95 system; 53.3 MB/s
after: 22.82 user; 7.33 system; 72.7 MB/s
legacy: 29.96 user; 7.94 system; 58.0 MB/s
And for `hg clone --stream` with a working directory update of
~230k files:
after: 119.55 user; 26.47 system; 0:57.08 wall
legacy: 126.98 user; 26.94 system; 1:05.56 wall
So, it appears that bundle2's stream clone is now definitively faster
than legacy stream clone!
Differential Revision: https://phab.mercurial-scm.org/D1932
Tests for change/delete conflicts, including:
b5605d88dc27: Make ui.prompt repeat on "unrecognized response" again
(issue897)
840e2b315c1f: Fix misleading error and prompts during update/merge
(issue556)
Make sure HGMERGE doesn't interfere with the test
$ unset HGMERGE
$ status() {
> echo "--- status ---"
> hg st -A file1 file2 file3
> echo "--- resolve --list ---"
> hg resolve --list file1 file2 file3
> echo "--- debugmergestate ---"
> hg debugmergestate
> for file in file1 file2 file3; do
> if [ -f $file ]; then
> echo "--- $file ---"
> cat $file
> else
> echo "*** $file does not exist"
> fi
> done
> }
$ hg init repo
$ cd repo
$ echo 1 > file1
$ echo 2 > file2
$ echo 3 > file3
$ hg ci -Am 'added files'
adding file1
adding file2
adding file3
$ hg rm file1
$ echo changed >> file2
$ echo changed1 >> file3
$ hg ci -m 'removed file1, changed file2, changed file3'
$ hg co 0
3 files updated, 0 files merged, 0 files removed, 0 files unresolved
$ echo changed >> file1
$ hg rm file2
$ echo changed2 >> file3
$ hg ci -m 'changed file1, removed file2, changed file3'
created new head
Non-interactive merge:
$ hg merge -y
local [working copy] changed file1 which other [merge rev] deleted
use (c)hanged version, (d)elete, or leave (u)nresolved? u
other [merge rev] changed file2 which local [working copy] deleted
use (c)hanged version, leave (d)eleted, or leave (u)nresolved? u
merging file3
warning: conflicts while merging file3! (edit, then use 'hg resolve --mark')
0 files updated, 0 files merged, 0 files removed, 3 files unresolved
use 'hg resolve' to retry unresolved file merges or 'hg merge --abort' to abandon
[1]
$ status
--- status ---
M file2
M file3
C file1
--- resolve --list ---
U file1
U file2
U file3
--- debugmergestate ---
* version 2 records
local: 13910f48cf7bdb2a0ba6e24b4900e4fdd5739dd4
other: 10f9a0a634e82080907e62f075ab119cbc565ea6
labels:
local: working copy
other: merge rev
file extras: file1 (ancestorlinknode = ab57bf49aa276a22d35a473592d4c34b5abc3eff)
file: file1 (record type "C", state "u", hash 60b27f004e454aca81b0480209cce5081ec52390)
local path: file1 (flags "")
ancestor path: file1 (node b8e02f6433738021a065f94175c7cd23db5f05be)
other path: file1 (node null)
file extras: file2 (ancestorlinknode = ab57bf49aa276a22d35a473592d4c34b5abc3eff)
file: file2 (record type "C", state "u", hash null)
local path: file2 (flags "")
ancestor path: file2 (node 5d9299349fc01ddd25d0070d149b124d8f10411e)
other path: file2 (node e7c1328648519852e723de86c0c0525acd779257)
file extras: file3 (ancestorlinknode = ab57bf49aa276a22d35a473592d4c34b5abc3eff)
file: file3 (record type "F", state "u", hash d5b0a58bc47161b1b8a831084b366f757c4f0b11)
local path: file3 (flags "")
ancestor path: file3 (node 2661d26c649684b482d10f91960cc3db683c38b4)
other path: file3 (node a2644c43e210356772c7772a8674544a62e06beb)
--- file1 ---
1
changed
--- file2 ---
2
changed
--- file3 ---
3
<<<<<<< working copy: 13910f48cf7b - test: changed file1, removed file2, chan...
changed2
=======
changed1
>>>>>>> merge rev: 10f9a0a634e8 - test: removed file1, changed file2, chan...
Interactive merge:
$ hg co -C
1 files updated, 0 files merged, 1 files removed, 0 files unresolved
updated to "13910f48cf7b: changed file1, removed file2, changed file3"
1 other heads for branch "default"
$ hg merge --config ui.interactive=true <<EOF
> c
> d
> EOF
local [working copy] changed file1 which other [merge rev] deleted
use (c)hanged version, (d)elete, or leave (u)nresolved? c
other [merge rev] changed file2 which local [working copy] deleted
use (c)hanged version, leave (d)eleted, or leave (u)nresolved? d
merging file3
warning: conflicts while merging file3! (edit, then use 'hg resolve --mark')
0 files updated, 2 files merged, 0 files removed, 1 files unresolved
use 'hg resolve' to retry unresolved file merges or 'hg merge --abort' to abandon
[1]
$ status
--- status ---
file2: * (glob)
M file3
C file1
--- resolve --list ---
R file1
R file2
U file3
--- debugmergestate ---
* version 2 records
local: 13910f48cf7bdb2a0ba6e24b4900e4fdd5739dd4
other: 10f9a0a634e82080907e62f075ab119cbc565ea6
labels:
local: working copy
other: merge rev
file extras: file1 (ancestorlinknode = ab57bf49aa276a22d35a473592d4c34b5abc3eff)
file: file1 (record type "C", state "r", hash 60b27f004e454aca81b0480209cce5081ec52390)
local path: file1 (flags "")
ancestor path: file1 (node b8e02f6433738021a065f94175c7cd23db5f05be)
other path: file1 (node null)
file extras: file2 (ancestorlinknode = ab57bf49aa276a22d35a473592d4c34b5abc3eff)
file: file2 (record type "C", state "r", hash null)
local path: file2 (flags "")
ancestor path: file2 (node 5d9299349fc01ddd25d0070d149b124d8f10411e)
other path: file2 (node e7c1328648519852e723de86c0c0525acd779257)
file extras: file3 (ancestorlinknode = ab57bf49aa276a22d35a473592d4c34b5abc3eff)
file: file3 (record type "F", state "u", hash d5b0a58bc47161b1b8a831084b366f757c4f0b11)
local path: file3 (flags "")
ancestor path: file3 (node 2661d26c649684b482d10f91960cc3db683c38b4)
other path: file3 (node a2644c43e210356772c7772a8674544a62e06beb)
--- file1 ---
1
changed
*** file2 does not exist
--- file3 ---
3
<<<<<<< working copy: 13910f48cf7b - test: changed file1, removed file2, chan...
changed2
=======
changed1
>>>>>>> merge rev: 10f9a0a634e8 - test: removed file1, changed file2, chan...
Interactive merge with bad input:
$ hg co -C
1 files updated, 0 files merged, 0 files removed, 0 files unresolved
updated to "13910f48cf7b: changed file1, removed file2, changed file3"
1 other heads for branch "default"
$ hg merge --config ui.interactive=true <<EOF
> foo
> bar
> d
> baz
> c
> EOF
local [working copy] changed file1 which other [merge rev] deleted
use (c)hanged version, (d)elete, or leave (u)nresolved? foo
unrecognized response
local [working copy] changed file1 which other [merge rev] deleted
use (c)hanged version, (d)elete, or leave (u)nresolved? bar
unrecognized response
local [working copy] changed file1 which other [merge rev] deleted
use (c)hanged version, (d)elete, or leave (u)nresolved? d
other [merge rev] changed file2 which local [working copy] deleted
use (c)hanged version, leave (d)eleted, or leave (u)nresolved? baz
unrecognized response
other [merge rev] changed file2 which local [working copy] deleted
use (c)hanged version, leave (d)eleted, or leave (u)nresolved? c
merging file3
warning: conflicts while merging file3! (edit, then use 'hg resolve --mark')
0 files updated, 1 files merged, 1 files removed, 1 files unresolved
use 'hg resolve' to retry unresolved file merges or 'hg merge --abort' to abandon
[1]
$ status
--- status ---
M file2
M file3
R file1
--- resolve --list ---
R file1
R file2
U file3
--- debugmergestate ---
* version 2 records
local: 13910f48cf7bdb2a0ba6e24b4900e4fdd5739dd4
other: 10f9a0a634e82080907e62f075ab119cbc565ea6
labels:
local: working copy
other: merge rev
file extras: file1 (ancestorlinknode = ab57bf49aa276a22d35a473592d4c34b5abc3eff)
file: file1 (record type "C", state "r", hash 60b27f004e454aca81b0480209cce5081ec52390)
local path: file1 (flags "")
ancestor path: file1 (node b8e02f6433738021a065f94175c7cd23db5f05be)
other path: file1 (node null)
file extras: file2 (ancestorlinknode = ab57bf49aa276a22d35a473592d4c34b5abc3eff)
file: file2 (record type "C", state "r", hash null)
local path: file2 (flags "")
ancestor path: file2 (node 5d9299349fc01ddd25d0070d149b124d8f10411e)
other path: file2 (node e7c1328648519852e723de86c0c0525acd779257)
file extras: file3 (ancestorlinknode = ab57bf49aa276a22d35a473592d4c34b5abc3eff)
file: file3 (record type "F", state "u", hash d5b0a58bc47161b1b8a831084b366f757c4f0b11)
local path: file3 (flags "")
ancestor path: file3 (node 2661d26c649684b482d10f91960cc3db683c38b4)
other path: file3 (node a2644c43e210356772c7772a8674544a62e06beb)
*** file1 does not exist
--- file2 ---
2
changed
--- file3 ---
3
<<<<<<< working copy: 13910f48cf7b - test: changed file1, removed file2, chan...
changed2
=======
changed1
>>>>>>> merge rev: 10f9a0a634e8 - test: removed file1, changed file2, chan...
Interactive merge with not enough input:
$ hg co -C
2 files updated, 0 files merged, 1 files removed, 0 files unresolved
updated to "13910f48cf7b: changed file1, removed file2, changed file3"
1 other heads for branch "default"
$ hg merge --config ui.interactive=true <<EOF
> d
> EOF
local [working copy] changed file1 which other [merge rev] deleted
use (c)hanged version, (d)elete, or leave (u)nresolved? d
other [merge rev] changed file2 which local [working copy] deleted
use (c)hanged version, leave (d)eleted, or leave (u)nresolved?
merging file3
warning: conflicts while merging file3! (edit, then use 'hg resolve --mark')
0 files updated, 0 files merged, 1 files removed, 2 files unresolved
use 'hg resolve' to retry unresolved file merges or 'hg merge --abort' to abandon
[1]
$ status
--- status ---
M file2
M file3
R file1
--- resolve --list ---
R file1
U file2
U file3
--- debugmergestate ---
* version 2 records
local: 13910f48cf7bdb2a0ba6e24b4900e4fdd5739dd4
other: 10f9a0a634e82080907e62f075ab119cbc565ea6
labels:
local: working copy
other: merge rev
file extras: file1 (ancestorlinknode = ab57bf49aa276a22d35a473592d4c34b5abc3eff)
file: file1 (record type "C", state "r", hash 60b27f004e454aca81b0480209cce5081ec52390)
local path: file1 (flags "")
ancestor path: file1 (node b8e02f6433738021a065f94175c7cd23db5f05be)
other path: file1 (node null)
file extras: file2 (ancestorlinknode = ab57bf49aa276a22d35a473592d4c34b5abc3eff)
file: file2 (record type "C", state "u", hash null)
local path: file2 (flags "")
ancestor path: file2 (node 5d9299349fc01ddd25d0070d149b124d8f10411e)
other path: file2 (node e7c1328648519852e723de86c0c0525acd779257)
file extras: file3 (ancestorlinknode = ab57bf49aa276a22d35a473592d4c34b5abc3eff)
file: file3 (record type "F", state "u", hash d5b0a58bc47161b1b8a831084b366f757c4f0b11)
local path: file3 (flags "")
ancestor path: file3 (node 2661d26c649684b482d10f91960cc3db683c38b4)
other path: file3 (node a2644c43e210356772c7772a8674544a62e06beb)
*** file1 does not exist
--- file2 ---
2
changed
--- file3 ---
3
<<<<<<< working copy: 13910f48cf7b - test: changed file1, removed file2, chan...
changed2
=======
changed1
>>>>>>> merge rev: 10f9a0a634e8 - test: removed file1, changed file2, chan...
Choose local versions of files
$ hg co -C
2 files updated, 0 files merged, 1 files removed, 0 files unresolved
updated to "13910f48cf7b: changed file1, removed file2, changed file3"
1 other heads for branch "default"
$ hg merge --tool :local
0 files updated, 3 files merged, 0 files removed, 0 files unresolved
(branch merge, don't forget to commit)
$ status 2>&1 | tee $TESTTMP/local.status
--- status ---
file2: * (glob)
M file3
C file1
--- resolve --list ---
R file1
R file2
R file3
--- debugmergestate ---
* version 2 records
local: 13910f48cf7bdb2a0ba6e24b4900e4fdd5739dd4
other: 10f9a0a634e82080907e62f075ab119cbc565ea6
labels:
local: working copy
other: merge rev
file extras: file1 (ancestorlinknode = ab57bf49aa276a22d35a473592d4c34b5abc3eff)
file: file1 (record type "C", state "r", hash 60b27f004e454aca81b0480209cce5081ec52390)
local path: file1 (flags "")
ancestor path: file1 (node b8e02f6433738021a065f94175c7cd23db5f05be)
other path: file1 (node null)
file extras: file2 (ancestorlinknode = ab57bf49aa276a22d35a473592d4c34b5abc3eff)
file: file2 (record type "C", state "r", hash null)
local path: file2 (flags "")
ancestor path: file2 (node 5d9299349fc01ddd25d0070d149b124d8f10411e)
other path: file2 (node e7c1328648519852e723de86c0c0525acd779257)
file extras: file3 (ancestorlinknode = ab57bf49aa276a22d35a473592d4c34b5abc3eff)
file: file3 (record type "F", state "r", hash d5b0a58bc47161b1b8a831084b366f757c4f0b11)
local path: file3 (flags "")
ancestor path: file3 (node 2661d26c649684b482d10f91960cc3db683c38b4)
other path: file3 (node a2644c43e210356772c7772a8674544a62e06beb)
--- file1 ---
1
changed
*** file2 does not exist
--- file3 ---
3
changed2
Choose other versions of files
$ hg co -C
1 files updated, 0 files merged, 0 files removed, 0 files unresolved
updated to "13910f48cf7b: changed file1, removed file2, changed file3"
1 other heads for branch "default"
$ hg merge --tool :other
0 files updated, 2 files merged, 1 files removed, 0 files unresolved
(branch merge, don't forget to commit)
$ status 2>&1 | tee $TESTTMP/other.status
--- status ---
M file2
M file3
R file1
--- resolve --list ---
R file1
R file2
R file3
--- debugmergestate ---
* version 2 records
local: 13910f48cf7bdb2a0ba6e24b4900e4fdd5739dd4
other: 10f9a0a634e82080907e62f075ab119cbc565ea6
labels:
local: working copy
other: merge rev
file extras: file1 (ancestorlinknode = ab57bf49aa276a22d35a473592d4c34b5abc3eff)
file: file1 (record type "C", state "r", hash 60b27f004e454aca81b0480209cce5081ec52390)
local path: file1 (flags "")
ancestor path: file1 (node b8e02f6433738021a065f94175c7cd23db5f05be)
other path: file1 (node null)
file extras: file2 (ancestorlinknode = ab57bf49aa276a22d35a473592d4c34b5abc3eff)
file: file2 (record type "C", state "r", hash null)
local path: file2 (flags "")
ancestor path: file2 (node 5d9299349fc01ddd25d0070d149b124d8f10411e)
other path: file2 (node e7c1328648519852e723de86c0c0525acd779257)
file extras: file3 (ancestorlinknode = ab57bf49aa276a22d35a473592d4c34b5abc3eff)
file: file3 (record type "F", state "r", hash d5b0a58bc47161b1b8a831084b366f757c4f0b11)
local path: file3 (flags "")
ancestor path: file3 (node 2661d26c649684b482d10f91960cc3db683c38b4)
other path: file3 (node a2644c43e210356772c7772a8674544a62e06beb)
*** file1 does not exist
--- file2 ---
2
changed
--- file3 ---
3
changed1
Fail
$ hg co -C
2 files updated, 0 files merged, 1 files removed, 0 files unresolved
updated to "13910f48cf7b: changed file1, removed file2, changed file3"
1 other heads for branch "default"
$ hg merge --tool :fail
0 files updated, 0 files merged, 0 files removed, 3 files unresolved
use 'hg resolve' to retry unresolved file merges or 'hg merge --abort' to abandon
[1]
$ status 2>&1 | tee $TESTTMP/fail.status
--- status ---
M file2
M file3
C file1
--- resolve --list ---
U file1
U file2
U file3
--- debugmergestate ---
* version 2 records
local: 13910f48cf7bdb2a0ba6e24b4900e4fdd5739dd4
other: 10f9a0a634e82080907e62f075ab119cbc565ea6
labels:
local: working copy
other: merge rev
file extras: file1 (ancestorlinknode = ab57bf49aa276a22d35a473592d4c34b5abc3eff)
file: file1 (record type "C", state "u", hash 60b27f004e454aca81b0480209cce5081ec52390)
local path: file1 (flags "")
ancestor path: file1 (node b8e02f6433738021a065f94175c7cd23db5f05be)
other path: file1 (node null)
file extras: file2 (ancestorlinknode = ab57bf49aa276a22d35a473592d4c34b5abc3eff)
file: file2 (record type "C", state "u", hash null)
local path: file2 (flags "")
ancestor path: file2 (node 5d9299349fc01ddd25d0070d149b124d8f10411e)
other path: file2 (node e7c1328648519852e723de86c0c0525acd779257)
file extras: file3 (ancestorlinknode = ab57bf49aa276a22d35a473592d4c34b5abc3eff)
file: file3 (record type "F", state "u", hash d5b0a58bc47161b1b8a831084b366f757c4f0b11)
local path: file3 (flags "")
ancestor path: file3 (node 2661d26c649684b482d10f91960cc3db683c38b4)
other path: file3 (node a2644c43e210356772c7772a8674544a62e06beb)
--- file1 ---
1
changed
--- file2 ---
2
changed
--- file3 ---
3
changed2
Force prompts with no input (should be similar to :fail)
$ hg co -C
1 files updated, 0 files merged, 1 files removed, 0 files unresolved
updated to "13910f48cf7b: changed file1, removed file2, changed file3"
1 other heads for branch "default"
$ hg merge --config ui.interactive=True --tool :prompt
local [working copy] changed file1 which other [merge rev] deleted
use (c)hanged version, (d)elete, or leave (u)nresolved?
other [merge rev] changed file2 which local [working copy] deleted
use (c)hanged version, leave (d)eleted, or leave (u)nresolved?
keep (l)ocal [working copy], take (o)ther [merge rev], or leave (u)nresolved for file3?
0 files updated, 0 files merged, 0 files removed, 3 files unresolved
use 'hg resolve' to retry unresolved file merges or 'hg merge --abort' to abandon
[1]
$ status 2>&1 | tee $TESTTMP/prompt.status
--- status ---
M file2
M file3
C file1
--- resolve --list ---
U file1
U file2
U file3
--- debugmergestate ---
* version 2 records
local: 13910f48cf7bdb2a0ba6e24b4900e4fdd5739dd4
other: 10f9a0a634e82080907e62f075ab119cbc565ea6
labels:
local: working copy
other: merge rev
file extras: file1 (ancestorlinknode = ab57bf49aa276a22d35a473592d4c34b5abc3eff)
file: file1 (record type "C", state "u", hash 60b27f004e454aca81b0480209cce5081ec52390)
local path: file1 (flags "")
ancestor path: file1 (node b8e02f6433738021a065f94175c7cd23db5f05be)
other path: file1 (node null)
file extras: file2 (ancestorlinknode = ab57bf49aa276a22d35a473592d4c34b5abc3eff)
file: file2 (record type "C", state "u", hash null)
local path: file2 (flags "")
ancestor path: file2 (node 5d9299349fc01ddd25d0070d149b124d8f10411e)
other path: file2 (node e7c1328648519852e723de86c0c0525acd779257)
file extras: file3 (ancestorlinknode = ab57bf49aa276a22d35a473592d4c34b5abc3eff)
file: file3 (record type "F", state "u", hash d5b0a58bc47161b1b8a831084b366f757c4f0b11)
local path: file3 (flags "")
ancestor path: file3 (node 2661d26c649684b482d10f91960cc3db683c38b4)
other path: file3 (node a2644c43e210356772c7772a8674544a62e06beb)
--- file1 ---
1
changed
--- file2 ---
2
changed
--- file3 ---
3
changed2
$ cmp $TESTTMP/fail.status $TESTTMP/prompt.status || diff -U8 $TESTTMP/fail.status $TESTTMP/prompt.status
Force prompts
$ hg co -C
1 files updated, 0 files merged, 1 files removed, 0 files unresolved
updated to "13910f48cf7b: changed file1, removed file2, changed file3"
1 other heads for branch "default"
$ hg merge --tool :prompt
local [working copy] changed file1 which other [merge rev] deleted
use (c)hanged version, (d)elete, or leave (u)nresolved? u
other [merge rev] changed file2 which local [working copy] deleted
use (c)hanged version, leave (d)eleted, or leave (u)nresolved? u
keep (l)ocal [working copy], take (o)ther [merge rev], or leave (u)nresolved for file3? u
0 files updated, 0 files merged, 0 files removed, 3 files unresolved
use 'hg resolve' to retry unresolved file merges or 'hg merge --abort' to abandon
[1]
$ status
--- status ---
M file2
M file3
C file1
--- resolve --list ---
U file1
U file2
U file3
--- debugmergestate ---
* version 2 records
local: 13910f48cf7bdb2a0ba6e24b4900e4fdd5739dd4
other: 10f9a0a634e82080907e62f075ab119cbc565ea6
labels:
local: working copy
other: merge rev
file extras: file1 (ancestorlinknode = ab57bf49aa276a22d35a473592d4c34b5abc3eff)
file: file1 (record type "C", state "u", hash 60b27f004e454aca81b0480209cce5081ec52390)
local path: file1 (flags "")
ancestor path: file1 (node b8e02f6433738021a065f94175c7cd23db5f05be)
other path: file1 (node null)
file extras: file2 (ancestorlinknode = ab57bf49aa276a22d35a473592d4c34b5abc3eff)
file: file2 (record type "C", state "u", hash null)
local path: file2 (flags "")
ancestor path: file2 (node 5d9299349fc01ddd25d0070d149b124d8f10411e)
other path: file2 (node e7c1328648519852e723de86c0c0525acd779257)
file extras: file3 (ancestorlinknode = ab57bf49aa276a22d35a473592d4c34b5abc3eff)
file: file3 (record type "F", state "u", hash d5b0a58bc47161b1b8a831084b366f757c4f0b11)
local path: file3 (flags "")
ancestor path: file3 (node 2661d26c649684b482d10f91960cc3db683c38b4)
other path: file3 (node a2644c43e210356772c7772a8674544a62e06beb)
--- file1 ---
1
changed
--- file2 ---
2
changed
--- file3 ---
3
changed2
Choose to merge all files
$ hg co -C
1 files updated, 0 files merged, 1 files removed, 0 files unresolved
updated to "13910f48cf7b: changed file1, removed file2, changed file3"
1 other heads for branch "default"
$ hg merge --tool :merge3
local [working copy] changed file1 which other [merge rev] deleted
use (c)hanged version, (d)elete, or leave (u)nresolved? u
other [merge rev] changed file2 which local [working copy] deleted
use (c)hanged version, leave (d)eleted, or leave (u)nresolved? u
merging file3
warning: conflicts while merging file3! (edit, then use 'hg resolve --mark')
0 files updated, 0 files merged, 0 files removed, 3 files unresolved
use 'hg resolve' to retry unresolved file merges or 'hg merge --abort' to abandon
[1]
$ status
--- status ---
M file2
M file3
C file1
--- resolve --list ---
U file1
U file2
U file3
--- debugmergestate ---
* version 2 records
local: 13910f48cf7bdb2a0ba6e24b4900e4fdd5739dd4
other: 10f9a0a634e82080907e62f075ab119cbc565ea6
labels:
local: working copy
other: merge rev
file extras: file1 (ancestorlinknode = ab57bf49aa276a22d35a473592d4c34b5abc3eff)
file: file1 (record type "C", state "u", hash 60b27f004e454aca81b0480209cce5081ec52390)
local path: file1 (flags "")
ancestor path: file1 (node b8e02f6433738021a065f94175c7cd23db5f05be)
other path: file1 (node null)
file extras: file2 (ancestorlinknode = ab57bf49aa276a22d35a473592d4c34b5abc3eff)
file: file2 (record type "C", state "u", hash null)
local path: file2 (flags "")
ancestor path: file2 (node 5d9299349fc01ddd25d0070d149b124d8f10411e)
other path: file2 (node e7c1328648519852e723de86c0c0525acd779257)
file extras: file3 (ancestorlinknode = ab57bf49aa276a22d35a473592d4c34b5abc3eff)
file: file3 (record type "F", state "u", hash d5b0a58bc47161b1b8a831084b366f757c4f0b11)
local path: file3 (flags "")
ancestor path: file3 (node 2661d26c649684b482d10f91960cc3db683c38b4)
other path: file3 (node a2644c43e210356772c7772a8674544a62e06beb)
--- file1 ---
1
changed
--- file2 ---
2
changed
--- file3 ---
3
<<<<<<< working copy: 13910f48cf7b - test: changed file1, removed file2, chan...
changed2
||||||| base
=======
changed1
>>>>>>> merge rev: 10f9a0a634e8 - test: removed file1, changed file2, chan...
Exercise transitions between local, other, fail and prompt, and make sure the
dirstate stays consistent. (Compare with each other and to the above
invocations.)
$ testtransitions() {
> # this traversal order covers every transition
> tools="local other prompt local fail other local prompt other fail prompt fail local"
> lasttool="merge3"
> for tool in $tools; do
> echo "=== :$lasttool -> :$tool ==="
> ref="$TESTTMP/$tool.status"
> hg resolve --unmark --all
> hg resolve --tool ":$tool" --all --config ui.interactive=True
> status > "$TESTTMP/compare.status" 2>&1
> echo '--- diff of status ---'
> if cmp "$TESTTMP/$tool.status" "$TESTTMP/compare.status" || diff -U8 "$TESTTMP/$tool.status" "$TESTTMP/compare.status"; then
> echo '(status identical)'
> fi
> lasttool="$tool"
> echo
> done
> }
$ testtransitions
=== :merge3 -> :local ===
(no more unresolved files)
--- diff of status ---
(status identical)
=== :local -> :other ===
(no more unresolved files)
--- diff of status ---
(status identical)
=== :other -> :prompt ===
local [working copy] changed file1 which other [merge rev] deleted
use (c)hanged version, (d)elete, or leave (u)nresolved?
other [merge rev] changed file2 which local [working copy] deleted
use (c)hanged version, leave (d)eleted, or leave (u)nresolved?
keep (l)ocal [working copy], take (o)ther [merge rev], or leave (u)nresolved for file3?
--- diff of status ---
(status identical)
=== :prompt -> :local ===
(no more unresolved files)
--- diff of status ---
(status identical)
=== :local -> :fail ===
--- diff of status ---
(status identical)
=== :fail -> :other ===
(no more unresolved files)
--- diff of status ---
(status identical)
=== :other -> :local ===
(no more unresolved files)
--- diff of status ---
(status identical)
=== :local -> :prompt ===
local [working copy] changed file1 which other [merge rev] deleted
use (c)hanged version, (d)elete, or leave (u)nresolved?
other [merge rev] changed file2 which local [working copy] deleted
use (c)hanged version, leave (d)eleted, or leave (u)nresolved?
keep (l)ocal [working copy], take (o)ther [merge rev], or leave (u)nresolved for file3?
--- diff of status ---
(status identical)
=== :prompt -> :other ===
(no more unresolved files)
--- diff of status ---
(status identical)
=== :other -> :fail ===
--- diff of status ---
(status identical)
=== :fail -> :prompt ===
local [working copy] changed file1 which other [merge rev] deleted
use (c)hanged version, (d)elete, or leave (u)nresolved?
other [merge rev] changed file2 which local [working copy] deleted
use (c)hanged version, leave (d)eleted, or leave (u)nresolved?
keep (l)ocal [working copy], take (o)ther [merge rev], or leave (u)nresolved for file3?
--- diff of status ---
(status identical)
=== :prompt -> :fail ===
--- diff of status ---
(status identical)
=== :fail -> :local ===
(no more unresolved files)
--- diff of status ---
(status identical)
Non-interactive linear update
$ hg co -C 0
3 files updated, 0 files merged, 0 files removed, 0 files unresolved
$ echo changed >> file1
$ hg rm file2
$ hg update 1 -y
local [working copy] changed file1 which other [destination] deleted
use (c)hanged version, (d)elete, or leave (u)nresolved? u
other [destination] changed file2 which local [working copy] deleted
use (c)hanged version, leave (d)eleted, or leave (u)nresolved? u
1 files updated, 0 files merged, 0 files removed, 2 files unresolved
use 'hg resolve' to retry unresolved file merges
[1]
$ status
--- status ---
A file1
C file2
C file3
--- resolve --list ---
U file1
U file2
--- debugmergestate ---
* version 2 records
local: ab57bf49aa276a22d35a473592d4c34b5abc3eff
other: 10f9a0a634e82080907e62f075ab119cbc565ea6
labels:
local: working copy
other: destination
file extras: file1 (ancestorlinknode = ab57bf49aa276a22d35a473592d4c34b5abc3eff)
file: file1 (record type "C", state "u", hash 60b27f004e454aca81b0480209cce5081ec52390)
local path: file1 (flags "")
ancestor path: file1 (node b8e02f6433738021a065f94175c7cd23db5f05be)
other path: file1 (node null)
file extras: file2 (ancestorlinknode = ab57bf49aa276a22d35a473592d4c34b5abc3eff)
file: file2 (record type "C", state "u", hash null)
local path: file2 (flags "")
ancestor path: file2 (node 5d9299349fc01ddd25d0070d149b124d8f10411e)
other path: file2 (node e7c1328648519852e723de86c0c0525acd779257)
--- file1 ---
1
changed
--- file2 ---
2
changed
--- file3 ---
3
changed1
Choose local versions of files
$ hg co -C 0
3 files updated, 0 files merged, 0 files removed, 0 files unresolved
$ echo changed >> file1
$ hg rm file2
$ hg update 1 --tool :local
1 files updated, 2 files merged, 0 files removed, 0 files unresolved
$ status 2>&1 | tee $TESTTMP/local.status
--- status ---
file2: * (glob)
A file1
C file3
--- resolve --list ---
R file1
R file2
--- debugmergestate ---
* version 2 records
local: ab57bf49aa276a22d35a473592d4c34b5abc3eff
other: 10f9a0a634e82080907e62f075ab119cbc565ea6
labels:
local: working copy
other: destination
file extras: file1 (ancestorlinknode = ab57bf49aa276a22d35a473592d4c34b5abc3eff)
file: file1 (record type "C", state "r", hash 60b27f004e454aca81b0480209cce5081ec52390)
local path: file1 (flags "")
ancestor path: file1 (node b8e02f6433738021a065f94175c7cd23db5f05be)
other path: file1 (node null)
file extras: file2 (ancestorlinknode = ab57bf49aa276a22d35a473592d4c34b5abc3eff)
file: file2 (record type "C", state "r", hash null)
local path: file2 (flags "")
ancestor path: file2 (node 5d9299349fc01ddd25d0070d149b124d8f10411e)
other path: file2 (node e7c1328648519852e723de86c0c0525acd779257)
--- file1 ---
1
changed
*** file2 does not exist
--- file3 ---
3
changed1
Choose other versions of files
$ hg co -C 0
3 files updated, 0 files merged, 0 files removed, 0 files unresolved
$ echo changed >> file1
$ hg rm file2
$ hg update 1 --tool :other
1 files updated, 1 files merged, 1 files removed, 0 files unresolved
$ status 2>&1 | tee $TESTTMP/other.status
--- status ---
file1: * (glob)
C file2
C file3
--- resolve --list ---
R file1
R file2
--- debugmergestate ---
* version 2 records
local: ab57bf49aa276a22d35a473592d4c34b5abc3eff
other: 10f9a0a634e82080907e62f075ab119cbc565ea6
labels:
local: working copy
other: destination
file extras: file1 (ancestorlinknode = ab57bf49aa276a22d35a473592d4c34b5abc3eff)
file: file1 (record type "C", state "r", hash 60b27f004e454aca81b0480209cce5081ec52390)
local path: file1 (flags "")
ancestor path: file1 (node b8e02f6433738021a065f94175c7cd23db5f05be)
other path: file1 (node null)
file extras: file2 (ancestorlinknode = ab57bf49aa276a22d35a473592d4c34b5abc3eff)
file: file2 (record type "C", state "r", hash null)
local path: file2 (flags "")
ancestor path: file2 (node 5d9299349fc01ddd25d0070d149b124d8f10411e)
other path: file2 (node e7c1328648519852e723de86c0c0525acd779257)
*** file1 does not exist
--- file2 ---
2
changed
--- file3 ---
3
changed1
Fail
$ hg co -C 0
3 files updated, 0 files merged, 0 files removed, 0 files unresolved
$ echo changed >> file1
$ hg rm file2
$ hg update 1 --tool :fail
1 files updated, 0 files merged, 0 files removed, 2 files unresolved
use 'hg resolve' to retry unresolved file merges
[1]
$ status 2>&1 | tee $TESTTMP/fail.status
--- status ---
A file1
C file2
C file3
--- resolve --list ---
U file1
U file2
--- debugmergestate ---
* version 2 records
local: ab57bf49aa276a22d35a473592d4c34b5abc3eff
other: 10f9a0a634e82080907e62f075ab119cbc565ea6
labels:
local: working copy
other: destination
file extras: file1 (ancestorlinknode = ab57bf49aa276a22d35a473592d4c34b5abc3eff)
file: file1 (record type "C", state "u", hash 60b27f004e454aca81b0480209cce5081ec52390)
local path: file1 (flags "")
ancestor path: file1 (node b8e02f6433738021a065f94175c7cd23db5f05be)
other path: file1 (node null)
file extras: file2 (ancestorlinknode = ab57bf49aa276a22d35a473592d4c34b5abc3eff)
file: file2 (record type "C", state "u", hash null)
local path: file2 (flags "")
ancestor path: file2 (node 5d9299349fc01ddd25d0070d149b124d8f10411e)
other path: file2 (node e7c1328648519852e723de86c0c0525acd779257)
--- file1 ---
1
changed
--- file2 ---
2
changed
--- file3 ---
3
changed1
Force prompts with no input
$ hg co -C 0
3 files updated, 0 files merged, 0 files removed, 0 files unresolved
$ echo changed >> file1
$ hg rm file2
$ hg update 1 --config ui.interactive=True --tool :prompt
local [working copy] changed file1 which other [destination] deleted
use (c)hanged version, (d)elete, or leave (u)nresolved?
other [destination] changed file2 which local [working copy] deleted
use (c)hanged version, leave (d)eleted, or leave (u)nresolved?
1 files updated, 0 files merged, 0 files removed, 2 files unresolved
use 'hg resolve' to retry unresolved file merges
[1]
$ status 2>&1 | tee $TESTTMP/prompt.status
--- status ---
A file1
C file2
C file3
--- resolve --list ---
U file1
U file2
--- debugmergestate ---
* version 2 records
local: ab57bf49aa276a22d35a473592d4c34b5abc3eff
other: 10f9a0a634e82080907e62f075ab119cbc565ea6
labels:
local: working copy
other: destination
file extras: file1 (ancestorlinknode = ab57bf49aa276a22d35a473592d4c34b5abc3eff)
file: file1 (record type "C", state "u", hash 60b27f004e454aca81b0480209cce5081ec52390)
local path: file1 (flags "")
ancestor path: file1 (node b8e02f6433738021a065f94175c7cd23db5f05be)
other path: file1 (node null)
file extras: file2 (ancestorlinknode = ab57bf49aa276a22d35a473592d4c34b5abc3eff)
file: file2 (record type "C", state "u", hash null)
local path: file2 (flags "")
ancestor path: file2 (node 5d9299349fc01ddd25d0070d149b124d8f10411e)
other path: file2 (node e7c1328648519852e723de86c0c0525acd779257)
--- file1 ---
1
changed
--- file2 ---
2
changed
--- file3 ---
3
changed1
$ cmp $TESTTMP/fail.status $TESTTMP/prompt.status || diff -U8 $TESTTMP/fail.status $TESTTMP/prompt.status
Choose to merge all files
$ hg co -C 0
3 files updated, 0 files merged, 0 files removed, 0 files unresolved
$ echo changed >> file1
$ hg rm file2
$ hg update 1 --tool :merge3
local [working copy] changed file1 which other [destination] deleted
use (c)hanged version, (d)elete, or leave (u)nresolved? u
other [destination] changed file2 which local [working copy] deleted
use (c)hanged version, leave (d)eleted, or leave (u)nresolved? u
1 files updated, 0 files merged, 0 files removed, 2 files unresolved
use 'hg resolve' to retry unresolved file merges
[1]
$ status
--- status ---
A file1
C file2
C file3
--- resolve --list ---
U file1
U file2
--- debugmergestate ---
* version 2 records
local: ab57bf49aa276a22d35a473592d4c34b5abc3eff
other: 10f9a0a634e82080907e62f075ab119cbc565ea6
labels:
local: working copy
other: destination
file extras: file1 (ancestorlinknode = ab57bf49aa276a22d35a473592d4c34b5abc3eff)
file: file1 (record type "C", state "u", hash 60b27f004e454aca81b0480209cce5081ec52390)
local path: file1 (flags "")
ancestor path: file1 (node b8e02f6433738021a065f94175c7cd23db5f05be)
other path: file1 (node null)
file extras: file2 (ancestorlinknode = ab57bf49aa276a22d35a473592d4c34b5abc3eff)
file: file2 (record type "C", state "u", hash null)
local path: file2 (flags "")
ancestor path: file2 (node 5d9299349fc01ddd25d0070d149b124d8f10411e)
other path: file2 (node e7c1328648519852e723de86c0c0525acd779257)
--- file1 ---
1
changed
--- file2 ---
2
changed
--- file3 ---
3
changed1
Test transitions between different merge tools
$ testtransitions
=== :merge3 -> :local ===
(no more unresolved files)
--- diff of status ---
(status identical)
=== :local -> :other ===
(no more unresolved files)
--- diff of status ---
(status identical)
=== :other -> :prompt ===
local [working copy] changed file1 which other [destination] deleted
use (c)hanged version, (d)elete, or leave (u)nresolved?
other [destination] changed file2 which local [working copy] deleted
use (c)hanged version, leave (d)eleted, or leave (u)nresolved?
--- diff of status ---
(status identical)
=== :prompt -> :local ===
(no more unresolved files)
--- diff of status ---
(status identical)
=== :local -> :fail ===
--- diff of status ---
(status identical)
=== :fail -> :other ===
(no more unresolved files)
--- diff of status ---
(status identical)
=== :other -> :local ===
(no more unresolved files)
--- diff of status ---
(status identical)
=== :local -> :prompt ===
local [working copy] changed file1 which other [destination] deleted
use (c)hanged version, (d)elete, or leave (u)nresolved?
other [destination] changed file2 which local [working copy] deleted
use (c)hanged version, leave (d)eleted, or leave (u)nresolved?
--- diff of status ---
(status identical)
=== :prompt -> :other ===
(no more unresolved files)
--- diff of status ---
(status identical)
=== :other -> :fail ===
--- diff of status ---
(status identical)
=== :fail -> :prompt ===
local [working copy] changed file1 which other [destination] deleted
use (c)hanged version, (d)elete, or leave (u)nresolved?
other [destination] changed file2 which local [working copy] deleted
use (c)hanged version, leave (d)eleted, or leave (u)nresolved?
--- diff of status ---
(status identical)
=== :prompt -> :fail ===
--- diff of status ---
(status identical)
=== :fail -> :local ===
(no more unresolved files)
--- diff of status ---
(status identical)