phases: rework the logic of _pushdiscoveryphase to bound complexity
This rework the various graph traversal in _pushdiscoveryphase to keep the
complexity in check.
This is done though a couple of things:
- first, limiting the space we have to explore, for example, if we are not in
publishing push, we don't need to consider remote draft roots that are also
draft locally, as there is nothing to be moved there.
- avoid unbounded descendant computation, and use the faster "rev between"
computation.
This provide a massive boost to performance when exchanging with repository with
a massive amount of draft, like mozilla-try:
### data-env-vars.name = mozilla-try-2023-03-22-zstd-sparse-revlog
# benchmark.name = hg.command.push
# bin-env-vars.hg.flavor = default
# bin-env-vars.hg.py-re2-module = default
# benchmark.variants.explicit-rev = all-out-heads
# benchmark.variants.issue6528 = disabled
# benchmark.variants.protocol = ssh
# benchmark.variants.reuse-external-delta-parent = default
## benchmark.variants.revs = any-1-extra-rev
before: 20.346590 seconds
after: 11.232059 seconds (-38.15%, -7.48 seconds)
## benchmark.variants.revs = any-100-extra-rev
before: 24.752051 seconds
after: 15.367412 seconds (-37.91%, -9.38 seconds)
After this changes, the push operation is still quite too slow. Some of this
can be attributed to general phases slowness (reading all the roots from disk
for example) and other know slowness (not using persistent-nodemap, branchmap,
tags, etc. We are also working on them, but with this series, phase discovery
during push no longer showing up in profile and this is a pretty nice and bit
low-hanging fruit out of the way.
### (same case as the above)
# benchmark.variants.revs = any-1-extra-rev
pre-%ln-change: 44.235070
this-changeset: 11.232059 seconds (-74.61%, -33.00 seconds)
# benchmark.variants.revs = any-100-extra-rev
pre-%ln-change: 49.234697
this-changeset: 15.367412 seconds (-68.79%, -33.87 seconds)
Note that with this change, the `hg push` performance is now much closer to the
`hg pull` performance, even it still lagging behind a bit. (and the overall
performance are still too slow).
### data-env-vars.name = mozilla-try-2023-03-22-ds2-pnm
# benchmark.variants.explicit-rev = all-out-heads
# benchmark.variants.issue6528 = disabled
# benchmark.variants.protocol = ssh
# benchmark.variants.pulled-delta-reuse-policy = default
# bin-env-vars.hg.flavor = rust
## benchmark.variants.revs = any-1-extra-rev
hg.command.pull: 6.517450
hg.command.push: 11.219888
## benchmark.variants.revs = any-100-extra-rev
hg.command.pull: 10.160991
hg.command.push: 14.251107
### data-env-vars.name = mozilla-try-2023-03-22-zstd-sparse-revlog
# bin-env-vars.hg.py-re2-module = default
# benchmark.variants.explicit-rev = all-out-heads
# benchmark.variants.issue6528 = disabled
# benchmark.variants.protocol = ssh
# benchmark.variants.pulled-delta-reuse-policy = default
## bin-env-vars.hg.flavor = default
## benchmark.variants.revs = any-1-extra-rev
hg.command.pull: 8.577772
hg.command.push: 11.232059
## bin-env-vars.hg.flavor = default
## benchmark.variants.revs = any-100-extra-rev
hg.command.pull: 13.152976
hg.command.push: 15.367412
## bin-env-vars.hg.flavor = rust
## benchmark.variants.revs = any-1-extra-rev
hg.command.pull: 8.731982
hg.command.push: 11.178751
## bin-env-vars.hg.flavor = rust
## benchmark.variants.revs = any-100-extra-rev
hg.command.pull: 13.184236
hg.command.push: 15.620843
$ mkdir -p t
$ cd t
$ cat <<EOF > merge
> import sys, os
> f = open(sys.argv[1], "w")
> f.write("merge %s %s %s" % (sys.argv[1], sys.argv[2], sys.argv[3]))
> f.close()
> EOF
perform a test merge with possible renaming
args:
$1 = action in local branch
$2 = action in remote branch
$3 = action in working dir
$4 = expected result
$ tm()
> {
> hg init t
> cd t
> echo "[merge]" >> .hg/hgrc
> echo "followcopies = 1" >> .hg/hgrc
>
> # base
> echo base > a
> echo base > rev # used to force commits
> hg add a rev
> hg ci -m "base"
>
> # remote
> echo remote > rev
> if [ "$2" != "" ] ; then $2 ; fi
> hg ci -m "remote"
>
> # local
> hg co -q 0
> echo local > rev
> if [ "$1" != "" ] ; then $1 ; fi
> hg ci -m "local"
>
> # working dir
> echo local > rev
> if [ "$3" != "" ] ; then $3 ; fi
>
> # merge
> echo "--------------"
> echo "test L:$1 R:$2 W:$3 - $4"
> echo "--------------"
> hg merge -y --debug --traceback --tool="\"$PYTHON\" ../merge"
>
> echo "--------------"
> hg status -camC -X rev
>
> hg ci -m "merge"
>
> echo "--------------"
> echo
>
> cd ..
> rm -r t
> }
$ up() {
> cp rev $1
> hg add $1 2> /dev/null
> if [ "$2" != "" ] ; then
> cp rev $2
> hg add $2 2> /dev/null
> fi
> }
$ um() { up $1; hg mv $1 $2; }
$ nc() { hg cp $1 $2; } # just copy
$ nm() { hg mv $1 $2; } # just move
$ tm "up a " "nc a b" " " "1 get local a to b"
created new head
--------------
test L:up a R:nc a b W: - 1 get local a to b
--------------
unmatched files in other:
b
all copies found (* = to merge, ! = divergent, % = renamed and deleted):
on remote side:
src: 'a' -> dst: 'b' *
checking for directory renames
resolving manifests
branchmerge: True, force: False, partial: False
ancestor: 924404dff337, local: e300d1c794ec+, remote: 4ce40f5aca24
starting 4 threads for background file closing (?)
preserving a for resolve of b
preserving rev for resolve of rev
b: remote copied from a -> m
picked tool '* ../merge' for b (binary False symlink False changedelete False) (glob)
merging a and b to b
my b@e300d1c794ec+ other b@4ce40f5aca24 ancestor a@924404dff337
premerge successful
rev: versions differ -> m
picked tool '* ../merge' for rev (binary False symlink False changedelete False) (glob)
merging rev
my rev@e300d1c794ec+ other rev@4ce40f5aca24 ancestor rev@924404dff337
launching merge tool: * ../merge *$TESTTMP/t/t/rev* * * (glob)
merge tool returned: 0
0 files updated, 2 files merged, 0 files removed, 0 files unresolved
(branch merge, don't forget to commit)
--------------
M b
a
C a
--------------
$ tm "nc a b" "up a " " " "2 get rem change to a and b"
created new head
--------------
test L:nc a b R:up a W: - 2 get rem change to a and b
--------------
unmatched files in local:
b
all copies found (* = to merge, ! = divergent, % = renamed and deleted):
on local side:
src: 'a' -> dst: 'b' *
checking for directory renames
resolving manifests
branchmerge: True, force: False, partial: False
ancestor: 924404dff337, local: 86a2aa42fc76+, remote: f4db7e329e71
a: remote is newer -> g
getting a
preserving b for resolve of b
preserving rev for resolve of rev
b: local copied/moved from a -> m
picked tool '* ../merge' for b (binary False symlink False changedelete False) (glob)
merging b and a to b
my b@86a2aa42fc76+ other a@f4db7e329e71 ancestor a@924404dff337
premerge successful
rev: versions differ -> m
picked tool '* ../merge' for rev (binary False symlink False changedelete False) (glob)
merging rev
my rev@86a2aa42fc76+ other rev@f4db7e329e71 ancestor rev@924404dff337
launching merge tool: * ../merge *$TESTTMP/t/t/rev* * * (glob)
merge tool returned: 0
1 files updated, 2 files merged, 0 files removed, 0 files unresolved
(branch merge, don't forget to commit)
--------------
M a
M b
a
--------------
$ tm "up a " "nm a b" " " "3 get local a change to b, remove a"
created new head
--------------
test L:up a R:nm a b W: - 3 get local a change to b, remove a
--------------
unmatched files in other:
b
all copies found (* = to merge, ! = divergent, % = renamed and deleted):
on remote side:
src: 'a' -> dst: 'b' *
checking for directory renames
resolving manifests
branchmerge: True, force: False, partial: False
ancestor: 924404dff337, local: e300d1c794ec+, remote: bdb19105162a
starting 4 threads for background file closing (?)
preserving a for resolve of b
preserving rev for resolve of rev
removing a
b: remote moved from a -> m
picked tool '* ../merge' for b (binary False symlink False changedelete False) (glob)
merging a and b to b
my b@e300d1c794ec+ other b@bdb19105162a ancestor a@924404dff337
premerge successful
rev: versions differ -> m
picked tool '* ../merge' for rev (binary False symlink False changedelete False) (glob)
merging rev
my rev@e300d1c794ec+ other rev@bdb19105162a ancestor rev@924404dff337
launching merge tool: * ../merge *$TESTTMP/t/t/rev* * * (glob)
merge tool returned: 0
0 files updated, 2 files merged, 0 files removed, 0 files unresolved
(branch merge, don't forget to commit)
--------------
M b
a
--------------
$ tm "nm a b" "up a " " " "4 get remote change to b"
created new head
--------------
test L:nm a b R:up a W: - 4 get remote change to b
--------------
unmatched files in local:
b
all copies found (* = to merge, ! = divergent, % = renamed and deleted):
on local side:
src: 'a' -> dst: 'b' *
checking for directory renames
resolving manifests
branchmerge: True, force: False, partial: False
ancestor: 924404dff337, local: 02963e448370+, remote: f4db7e329e71
starting 4 threads for background file closing (?)
preserving b for resolve of b
preserving rev for resolve of rev
b: local copied/moved from a -> m
picked tool '* ../merge' for b (binary False symlink False changedelete False) (glob)
merging b and a to b
my b@02963e448370+ other a@f4db7e329e71 ancestor a@924404dff337
premerge successful
rev: versions differ -> m
picked tool '* ../merge' for rev (binary False symlink False changedelete False) (glob)
merging rev
my rev@02963e448370+ other rev@f4db7e329e71 ancestor rev@924404dff337
launching merge tool: * ../merge *$TESTTMP/t/t/rev* * * (glob)
merge tool returned: 0
0 files updated, 2 files merged, 0 files removed, 0 files unresolved
(branch merge, don't forget to commit)
--------------
M b
a
--------------
$ tm " " "nc a b" " " "5 get b"
created new head
--------------
test L: R:nc a b W: - 5 get b
--------------
unmatched files in other:
b
all copies found (* = to merge, ! = divergent, % = renamed and deleted):
on remote side:
src: 'a' -> dst: 'b'
checking for directory renames
resolving manifests
branchmerge: True, force: False, partial: False
ancestor: 924404dff337, local: 94b33a1b7f2d+, remote: 4ce40f5aca24
b: remote created -> g
getting b
preserving rev for resolve of rev
rev: versions differ -> m
picked tool '* ../merge' for rev (binary False symlink False changedelete False) (glob)
merging rev
my rev@94b33a1b7f2d+ other rev@4ce40f5aca24 ancestor rev@924404dff337
launching merge tool: * ../merge *$TESTTMP/t/t/rev* * * (glob)
merge tool returned: 0
1 files updated, 1 files merged, 0 files removed, 0 files unresolved
(branch merge, don't forget to commit)
--------------
M b
C a
--------------
$ tm "nc a b" " " " " "6 nothing"
created new head
--------------
test L:nc a b R: W: - 6 nothing
--------------
unmatched files in local:
b
all copies found (* = to merge, ! = divergent, % = renamed and deleted):
on local side:
src: 'a' -> dst: 'b'
checking for directory renames
resolving manifests
branchmerge: True, force: False, partial: False
ancestor: 924404dff337, local: 86a2aa42fc76+, remote: 97c705ade336
starting 4 threads for background file closing (?)
preserving rev for resolve of rev
rev: versions differ -> m
picked tool '* ../merge' for rev (binary False symlink False changedelete False) (glob)
merging rev
my rev@86a2aa42fc76+ other rev@97c705ade336 ancestor rev@924404dff337
launching merge tool: * ../merge *$TESTTMP/t/t/rev* * * (glob)
merge tool returned: 0
0 files updated, 1 files merged, 0 files removed, 0 files unresolved
(branch merge, don't forget to commit)
--------------
C a
C b
--------------
$ tm " " "nm a b" " " "7 get b"
created new head
--------------
test L: R:nm a b W: - 7 get b
--------------
unmatched files in other:
b
all copies found (* = to merge, ! = divergent, % = renamed and deleted):
on remote side:
src: 'a' -> dst: 'b'
checking for directory renames
resolving manifests
branchmerge: True, force: False, partial: False
ancestor: 924404dff337, local: 94b33a1b7f2d+, remote: bdb19105162a
a: other deleted -> r
removing a
b: remote created -> g
getting b
preserving rev for resolve of rev
rev: versions differ -> m
picked tool '* ../merge' for rev (binary False symlink False changedelete False) (glob)
merging rev
my rev@94b33a1b7f2d+ other rev@bdb19105162a ancestor rev@924404dff337
launching merge tool: * ../merge *$TESTTMP/t/t/rev* * * (glob)
merge tool returned: 0
1 files updated, 1 files merged, 1 files removed, 0 files unresolved
(branch merge, don't forget to commit)
--------------
M b
--------------
$ tm "nm a b" " " " " "8 nothing"
created new head
--------------
test L:nm a b R: W: - 8 nothing
--------------
unmatched files in local:
b
all copies found (* = to merge, ! = divergent, % = renamed and deleted):
on local side:
src: 'a' -> dst: 'b'
checking for directory renames
resolving manifests
branchmerge: True, force: False, partial: False
ancestor: 924404dff337, local: 02963e448370+, remote: 97c705ade336
starting 4 threads for background file closing (?)
preserving rev for resolve of rev
rev: versions differ -> m
picked tool '* ../merge' for rev (binary False symlink False changedelete False) (glob)
merging rev
my rev@02963e448370+ other rev@97c705ade336 ancestor rev@924404dff337
launching merge tool: * ../merge *$TESTTMP/t/t/rev* * * (glob)
merge tool returned: 0
0 files updated, 1 files merged, 0 files removed, 0 files unresolved
(branch merge, don't forget to commit)
--------------
C b
--------------
$ tm "um a b" "um a b" " " "9 do merge with ancestor in a"
created new head
--------------
test L:um a b R:um a b W: - 9 do merge with ancestor in a
--------------
all copies found (* = to merge, ! = divergent, % = renamed and deleted):
on local side:
src: 'a' -> dst: 'b' *
on remote side:
src: 'a' -> dst: 'b' *
checking for directory renames
resolving manifests
branchmerge: True, force: False, partial: False
ancestor: 924404dff337, local: 62e7bf090eba+, remote: 49b6d8032493
starting 4 threads for background file closing (?)
preserving b for resolve of b
preserving rev for resolve of rev
b: both renamed from a -> m
picked tool '* ../merge' for b (binary False symlink False changedelete False) (glob)
merging b
my b@62e7bf090eba+ other b@49b6d8032493 ancestor a@924404dff337
launching merge tool: * ../merge *$TESTTMP/t/t/b* * * (glob)
merge tool returned: 0
rev: versions differ -> m
picked tool '* ../merge' for rev (binary False symlink False changedelete False) (glob)
merging rev
my rev@62e7bf090eba+ other rev@49b6d8032493 ancestor rev@924404dff337
launching merge tool: * ../merge *$TESTTMP/t/t/rev* * * (glob)
merge tool returned: 0
0 files updated, 2 files merged, 0 files removed, 0 files unresolved
(branch merge, don't forget to commit)
--------------
M b
--------------
m "um a c" "um x c" " " "10 do merge with no ancestor"
$ tm "nm a b" "nm a c" " " "11 get c, keep b"
created new head
--------------
test L:nm a b R:nm a c W: - 11 get c, keep b
--------------
unmatched files in local:
b
unmatched files in other:
c
all copies found (* = to merge, ! = divergent, % = renamed and deleted):
on local side:
src: 'a' -> dst: 'b' !
on remote side:
src: 'a' -> dst: 'c' !
checking for directory renames
resolving manifests
branchmerge: True, force: False, partial: False
ancestor: 924404dff337, local: 02963e448370+, remote: fe905ef2c33e
note: possible conflict - a was renamed multiple times to:
b
c
c: remote created -> g
getting c
preserving rev for resolve of rev
rev: versions differ -> m
picked tool '* ../merge' for rev (binary False symlink False changedelete False) (glob)
merging rev
my rev@02963e448370+ other rev@fe905ef2c33e ancestor rev@924404dff337
launching merge tool: * ../merge *$TESTTMP/t/t/rev* * * (glob)
merge tool returned: 0
1 files updated, 1 files merged, 0 files removed, 0 files unresolved
(branch merge, don't forget to commit)
--------------
M c
C b
--------------
$ tm "nc a b" "up b " " " "12 merge b no ancestor"
created new head
--------------
test L:nc a b R:up b W: - 12 merge b no ancestor
--------------
all copies found (* = to merge, ! = divergent, % = renamed and deleted):
on local side:
src: 'a' -> dst: 'b'
checking for directory renames
resolving manifests
branchmerge: True, force: False, partial: False
ancestor: 924404dff337, local: 86a2aa42fc76+, remote: af30c7647fc7
starting 4 threads for background file closing (?)
preserving b for resolve of b
preserving rev for resolve of rev
b: both created -> m
picked tool '* ../merge' for b (binary False symlink False changedelete False) (glob)
merging b
my b@86a2aa42fc76+ other b@af30c7647fc7 ancestor b@000000000000
launching merge tool: * ../merge *$TESTTMP/t/t/b* * * (glob)
merge tool returned: 0
rev: versions differ -> m
picked tool '* ../merge' for rev (binary False symlink False changedelete False) (glob)
merging rev
my rev@86a2aa42fc76+ other rev@af30c7647fc7 ancestor rev@924404dff337
launching merge tool: * ../merge *$TESTTMP/t/t/rev* * * (glob)
merge tool returned: 0
0 files updated, 2 files merged, 0 files removed, 0 files unresolved
(branch merge, don't forget to commit)
--------------
M b
C a
--------------
$ tm "up b " "nm a b" " " "13 merge b no ancestor"
created new head
--------------
test L:up b R:nm a b W: - 13 merge b no ancestor
--------------
all copies found (* = to merge, ! = divergent, % = renamed and deleted):
on remote side:
src: 'a' -> dst: 'b'
checking for directory renames
resolving manifests
branchmerge: True, force: False, partial: False
ancestor: 924404dff337, local: 59318016310c+, remote: bdb19105162a
a: other deleted -> r
removing a
starting 4 threads for background file closing (?)
preserving b for resolve of b
preserving rev for resolve of rev
b: both created -> m
picked tool '* ../merge' for b (binary False symlink False changedelete False) (glob)
merging b
my b@59318016310c+ other b@bdb19105162a ancestor b@000000000000
launching merge tool: * ../merge *$TESTTMP/t/t/b* * * (glob)
merge tool returned: 0
rev: versions differ -> m
picked tool '* ../merge' for rev (binary False symlink False changedelete False) (glob)
merging rev
my rev@59318016310c+ other rev@bdb19105162a ancestor rev@924404dff337
launching merge tool: * ../merge *$TESTTMP/t/t/rev* * * (glob)
merge tool returned: 0
0 files updated, 2 files merged, 1 files removed, 0 files unresolved
(branch merge, don't forget to commit)
--------------
M b
--------------
$ tm "nc a b" "up a b" " " "14 merge b no ancestor"
created new head
--------------
test L:nc a b R:up a b W: - 14 merge b no ancestor
--------------
all copies found (* = to merge, ! = divergent, % = renamed and deleted):
on local side:
src: 'a' -> dst: 'b' *
checking for directory renames
resolving manifests
branchmerge: True, force: False, partial: False
ancestor: 924404dff337, local: 86a2aa42fc76+, remote: 8dbce441892a
a: remote is newer -> g
getting a
preserving b for resolve of b
preserving rev for resolve of rev
b: both renamed from a -> m
picked tool '* ../merge' for b (binary False symlink False changedelete False) (glob)
merging b
my b@86a2aa42fc76+ other b@8dbce441892a ancestor a@924404dff337
premerge successful
rev: versions differ -> m
picked tool '* ../merge' for rev (binary False symlink False changedelete False) (glob)
merging rev
my rev@86a2aa42fc76+ other rev@8dbce441892a ancestor rev@924404dff337
launching merge tool: * ../merge *$TESTTMP/t/t/rev* * * (glob)
merge tool returned: 0
1 files updated, 2 files merged, 0 files removed, 0 files unresolved
(branch merge, don't forget to commit)
--------------
M a
M b
--------------
$ tm "up b " "nm a b" " " "15 merge b no ancestor, remove a"
created new head
--------------
test L:up b R:nm a b W: - 15 merge b no ancestor, remove a
--------------
all copies found (* = to merge, ! = divergent, % = renamed and deleted):
on remote side:
src: 'a' -> dst: 'b'
checking for directory renames
resolving manifests
branchmerge: True, force: False, partial: False
ancestor: 924404dff337, local: 59318016310c+, remote: bdb19105162a
a: other deleted -> r
removing a
starting 4 threads for background file closing (?)
preserving b for resolve of b
preserving rev for resolve of rev
b: both created -> m
picked tool '* ../merge' for b (binary False symlink False changedelete False) (glob)
merging b
my b@59318016310c+ other b@bdb19105162a ancestor b@000000000000
launching merge tool: * ../merge *$TESTTMP/t/t/b* * * (glob)
merge tool returned: 0
rev: versions differ -> m
picked tool '* ../merge' for rev (binary False symlink False changedelete False) (glob)
merging rev
my rev@59318016310c+ other rev@bdb19105162a ancestor rev@924404dff337
launching merge tool: * ../merge *$TESTTMP/t/t/rev* * * (glob)
merge tool returned: 0
0 files updated, 2 files merged, 1 files removed, 0 files unresolved
(branch merge, don't forget to commit)
--------------
M b
--------------
$ tm "nc a b" "up a b" " " "16 get a, merge b no ancestor"
created new head
--------------
test L:nc a b R:up a b W: - 16 get a, merge b no ancestor
--------------
all copies found (* = to merge, ! = divergent, % = renamed and deleted):
on local side:
src: 'a' -> dst: 'b' *
checking for directory renames
resolving manifests
branchmerge: True, force: False, partial: False
ancestor: 924404dff337, local: 86a2aa42fc76+, remote: 8dbce441892a
a: remote is newer -> g
getting a
preserving b for resolve of b
preserving rev for resolve of rev
b: both renamed from a -> m
picked tool '* ../merge' for b (binary False symlink False changedelete False) (glob)
merging b
my b@86a2aa42fc76+ other b@8dbce441892a ancestor a@924404dff337
premerge successful
rev: versions differ -> m
picked tool '* ../merge' for rev (binary False symlink False changedelete False) (glob)
merging rev
my rev@86a2aa42fc76+ other rev@8dbce441892a ancestor rev@924404dff337
launching merge tool: * ../merge *$TESTTMP/t/t/rev* * * (glob)
merge tool returned: 0
1 files updated, 2 files merged, 0 files removed, 0 files unresolved
(branch merge, don't forget to commit)
--------------
M a
M b
--------------
$ tm "up a b" "nc a b" " " "17 keep a, merge b no ancestor"
created new head
--------------
test L:up a b R:nc a b W: - 17 keep a, merge b no ancestor
--------------
all copies found (* = to merge, ! = divergent, % = renamed and deleted):
on remote side:
src: 'a' -> dst: 'b' *
checking for directory renames
resolving manifests
branchmerge: True, force: False, partial: False
ancestor: 924404dff337, local: 0b76e65c8289+, remote: 4ce40f5aca24
starting 4 threads for background file closing (?)
preserving b for resolve of b
preserving rev for resolve of rev
b: both renamed from a -> m
picked tool '* ../merge' for b (binary False symlink False changedelete False) (glob)
merging b
my b@0b76e65c8289+ other b@4ce40f5aca24 ancestor a@924404dff337
premerge successful
rev: versions differ -> m
picked tool '* ../merge' for rev (binary False symlink False changedelete False) (glob)
merging rev
my rev@0b76e65c8289+ other rev@4ce40f5aca24 ancestor rev@924404dff337
launching merge tool: * ../merge *$TESTTMP/t/t/rev* * * (glob)
merge tool returned: 0
0 files updated, 2 files merged, 0 files removed, 0 files unresolved
(branch merge, don't forget to commit)
--------------
M b
C a
--------------
$ tm "nm a b" "up a b" " " "18 merge b no ancestor"
created new head
--------------
test L:nm a b R:up a b W: - 18 merge b no ancestor
--------------
all copies found (* = to merge, ! = divergent, % = renamed and deleted):
on local side:
src: 'a' -> dst: 'b' *
checking for directory renames
resolving manifests
branchmerge: True, force: False, partial: False
ancestor: 924404dff337, local: 02963e448370+, remote: 8dbce441892a
starting 4 threads for background file closing (?)
preserving b for resolve of b
preserving rev for resolve of rev
b: both renamed from a -> m
picked tool '* ../merge' for b (binary False symlink False changedelete False) (glob)
merging b
my b@02963e448370+ other b@8dbce441892a ancestor a@924404dff337
premerge successful
rev: versions differ -> m
picked tool '* ../merge' for rev (binary False symlink False changedelete False) (glob)
merging rev
my rev@02963e448370+ other rev@8dbce441892a ancestor rev@924404dff337
launching merge tool: * ../merge *$TESTTMP/t/t/rev* * * (glob)
merge tool returned: 0
0 files updated, 2 files merged, 0 files removed, 0 files unresolved
(branch merge, don't forget to commit)
--------------
M b
--------------
$ tm "up a b" "nm a b" " " "19 merge b no ancestor, prompt remove a"
created new head
--------------
test L:up a b R:nm a b W: - 19 merge b no ancestor, prompt remove a
--------------
all copies found (* = to merge, ! = divergent, % = renamed and deleted):
on remote side:
src: 'a' -> dst: 'b' *
checking for directory renames
resolving manifests
branchmerge: True, force: False, partial: False
ancestor: 924404dff337, local: 0b76e65c8289+, remote: bdb19105162a
starting 4 threads for background file closing (?)
preserving b for resolve of b
preserving rev for resolve of rev
b: both renamed from a -> m
picked tool '* ../merge' for b (binary False symlink False changedelete False) (glob)
merging b
my b@0b76e65c8289+ other b@bdb19105162a ancestor a@924404dff337
premerge successful
rev: versions differ -> m
picked tool '* ../merge' for rev (binary False symlink False changedelete False) (glob)
merging rev
my rev@0b76e65c8289+ other rev@bdb19105162a ancestor rev@924404dff337
launching merge tool: * ../merge *$TESTTMP/t/t/rev* * * (glob)
merge tool returned: 0
0 files updated, 2 files merged, 0 files removed, 0 files unresolved
(branch merge, don't forget to commit)
--------------
M b
C a
--------------
$ tm "up a " "um a b" " " "20 merge a and b to b, remove a"
created new head
--------------
test L:up a R:um a b W: - 20 merge a and b to b, remove a
--------------
unmatched files in other:
b
all copies found (* = to merge, ! = divergent, % = renamed and deleted):
on remote side:
src: 'a' -> dst: 'b' *
checking for directory renames
resolving manifests
branchmerge: True, force: False, partial: False
ancestor: 924404dff337, local: e300d1c794ec+, remote: 49b6d8032493
starting 4 threads for background file closing (?)
preserving a for resolve of b
preserving rev for resolve of rev
removing a
b: remote moved from a -> m
picked tool '* ../merge' for b (binary False symlink False changedelete False) (glob)
merging a and b to b
my b@e300d1c794ec+ other b@49b6d8032493 ancestor a@924404dff337
launching merge tool: * ../merge *$TESTTMP/t/t/b* * * (glob)
merge tool returned: 0
rev: versions differ -> m
picked tool '* ../merge' for rev (binary False symlink False changedelete False) (glob)
merging rev
my rev@e300d1c794ec+ other rev@49b6d8032493 ancestor rev@924404dff337
launching merge tool: * ../merge *$TESTTMP/t/t/rev* * * (glob)
merge tool returned: 0
0 files updated, 2 files merged, 0 files removed, 0 files unresolved
(branch merge, don't forget to commit)
--------------
M b
a
--------------
$ tm "um a b" "up a " " " "21 merge a and b to b"
created new head
--------------
test L:um a b R:up a W: - 21 merge a and b to b
--------------
unmatched files in local:
b
all copies found (* = to merge, ! = divergent, % = renamed and deleted):
on local side:
src: 'a' -> dst: 'b' *
checking for directory renames
resolving manifests
branchmerge: True, force: False, partial: False
ancestor: 924404dff337, local: 62e7bf090eba+, remote: f4db7e329e71
starting 4 threads for background file closing (?)
preserving b for resolve of b
preserving rev for resolve of rev
b: local copied/moved from a -> m
picked tool '* ../merge' for b (binary False symlink False changedelete False) (glob)
merging b and a to b
my b@62e7bf090eba+ other a@f4db7e329e71 ancestor a@924404dff337
launching merge tool: * ../merge *$TESTTMP/t/t/b* * * (glob)
merge tool returned: 0
rev: versions differ -> m
picked tool '* ../merge' for rev (binary False symlink False changedelete False) (glob)
merging rev
my rev@62e7bf090eba+ other rev@f4db7e329e71 ancestor rev@924404dff337
launching merge tool: * ../merge *$TESTTMP/t/t/rev* * * (glob)
merge tool returned: 0
0 files updated, 2 files merged, 0 files removed, 0 files unresolved
(branch merge, don't forget to commit)
--------------
M b
a
--------------
m "nm a b" "um x a" " " "22 get a, keep b"
$ tm "nm a b" "up a c" " " "23 get c, keep b"
created new head
--------------
test L:nm a b R:up a c W: - 23 get c, keep b
--------------
unmatched files in local:
b
unmatched files in other:
c
all copies found (* = to merge, ! = divergent, % = renamed and deleted):
on local side:
src: 'a' -> dst: 'b' *
checking for directory renames
resolving manifests
branchmerge: True, force: False, partial: False
ancestor: 924404dff337, local: 02963e448370+, remote: 2b958612230f
c: remote created -> g
getting c
preserving b for resolve of b
preserving rev for resolve of rev
b: local copied/moved from a -> m
picked tool '* ../merge' for b (binary False symlink False changedelete False) (glob)
merging b and a to b
my b@02963e448370+ other a@2b958612230f ancestor a@924404dff337
premerge successful
rev: versions differ -> m
picked tool '* ../merge' for rev (binary False symlink False changedelete False) (glob)
merging rev
my rev@02963e448370+ other rev@2b958612230f ancestor rev@924404dff337
launching merge tool: * ../merge *$TESTTMP/t/t/rev* * * (glob)
merge tool returned: 0
1 files updated, 2 files merged, 0 files removed, 0 files unresolved
(branch merge, don't forget to commit)
--------------
M b
a
M c
--------------
$ cd ..
Systematic and terse testing of merge merges and ancestor calculation:
Expected result:
\ a m1 m2 dst
0 - f f f "versions differ"
1 f g g g "versions differ"
2 f f f f "versions differ"
3 f f g f+g "remote copied to " + f
4 f f g g "remote moved to " + f
5 f g f f+g "local copied to " + f2
6 f g f g "local moved to " + f2
7 - (f) f f "remote differs from untracked local"
8 f (f) f f "remote differs from untracked local"
$ hg init ancestortest
$ cd ancestortest
$ for x in 1 2 3 4 5 6 8; do mkdir $x; echo a > $x/f; done
$ hg ci -Aqm "a"
$ mkdir 0
$ touch 0/f
$ hg mv 1/f 1/g
$ hg cp 5/f 5/g
$ hg mv 6/f 6/g
$ hg rm 8/f
$ for x in */*; do echo m1 > $x; done
$ hg ci -Aqm "m1"
$ hg up -qr0
$ mkdir 0 7
$ touch 0/f 7/f
$ hg mv 1/f 1/g
$ hg cp 3/f 3/g
$ hg mv 4/f 4/g
$ for x in */*; do echo m2 > $x; done
$ hg ci -Aqm "m2"
$ hg up -qr1
$ mkdir 7 8
$ echo m > 7/f
$ echo m > 8/f
$ hg merge -f --tool internal:dump -v --debug -r2 | sed '/^resolving manifests/,$d' 2> /dev/null
unmatched files in local:
5/g
6/g
unmatched files in other:
3/g
4/g
7/f
all copies found (* = to merge, ! = divergent, % = renamed and deleted):
on local side:
src: '1/f' -> dst: '1/g' *
src: '5/f' -> dst: '5/g' *
src: '6/f' -> dst: '6/g' *
on remote side:
src: '1/f' -> dst: '1/g' *
src: '3/f' -> dst: '3/g' *
src: '4/f' -> dst: '4/g' *
checking for directory renames
$ hg mani
0/f
1/g
2/f
3/f
4/f
5/f
5/g
6/g
$ for f in */*; do echo $f:; cat $f; done
0/f:
m1
0/f.base:
0/f.local:
m1
0/f.orig:
m1
0/f.other:
m2
1/g:
m1
1/g.base:
a
1/g.local:
m1
1/g.orig:
m1
1/g.other:
m2
2/f:
m1
2/f.base:
a
2/f.local:
m1
2/f.orig:
m1
2/f.other:
m2
3/f:
m1
3/f.base:
a
3/f.local:
m1
3/f.orig:
m1
3/f.other:
m2
3/g:
m1
3/g.base:
a
3/g.local:
m1
3/g.orig:
m1
3/g.other:
m2
4/g:
m1
4/g.base:
a
4/g.local:
m1
4/g.orig:
m1
4/g.other:
m2
5/f:
m1
5/f.base:
a
5/f.local:
m1
5/f.orig:
m1
5/f.other:
m2
5/g:
m1
5/g.base:
a
5/g.local:
m1
5/g.orig:
m1
5/g.other:
m2
6/g:
m1
6/g.base:
a
6/g.local:
m1
6/g.orig:
m1
6/g.other:
m2
7/f:
m
7/f.base:
7/f.local:
m
7/f.orig:
m
7/f.other:
m2
8/f:
m2
$ cd ..