snapshot: introduce an intermediate `_refinedgroups` generator
This method will be used to improve the search for a good snapshot base. To
keep things simpler, we introduce the necessary function before doing any
delta base logic change. The next handful of commits will focus on refactoring
the code to let that new logic land as clearly as possible.
# General Idea
Right now, the search for a good delta base stop whenever we found a good one.
However, when using sparse-revlog, we should probably try a bit harder.
We do significant effort to increase delta re-use by jumping on "unrelated"
delta chains that provide better results. Moving to another chain for a better
result is good, but we have no guarantee we jump at a reasonable point in that
new chain. When we consider over the chains related to the parents, we start
from the higher-level snapshots. This is a way to consider the snapshot closer
to the current revision that has the best chance to produce a small delta. We
do benefit from this walk order when jumping to a better "unrelated" stack.
To counter-balance this, we'll introduce a way to "refine" the result. After a
good delta have been found, we'll keep searching for a better delta, using the
current best one as a starting point.
# Target Setup
The `finddeltainfo` method is responsible for the general search for a good
delta. It requests candidates base from `_candidategroups` and decides which
one are usable.
The `_candidategroups` generator act as a top-level filter, it does not care
about how we pick candidates, it just does basic filtering, excluding
revisions that have been tested already or that are an obvious misfit.
The `_rawgroups` generator is the one with the actual ancestors walking logic,
It does not care about what would do a good delta and what was already tested,
it just issues the initial candidates.
We introduce a new `_refinedgroup` function to bridge the gap between
`_candidategroups` and `_rawgroups`. It delegates the initial iteration logic
and then performing relevant refining of the valid base once found. (This
logic is yet to be added to function)
All these logics are fairly independent and easier to understand when standing
alone, not mixed with each other. It also makes it easy to test and try
different approaches for one of those four layers without affecting the other
ones.
# Technical details
To communicate `finddeltainfo` choice of "current best delta base" to the
`_refinegroup` logic, we plan to use python co-routine feature. The
`_candidategroups` and `_refinegroup` generators will become co-routine. This
will allow `_refinegroup` to detect when a good delta have been found and
triggers various refining steps.
For now, `_candidategroups` will just pass the value down the stack.
After poking at various option, the co-routine appears the best to keep each
layers focus on its duty, without the need to spread implementation details
across layers.
$ cat <<EOF >> $HGRCPATH
> [extensions]
> transplant=
> EOF
$ hg init t
$ cd t
$ hg transplant
abort: no source URL, branch revision, or revision list provided
[255]
$ hg transplant --continue --all
abort: --continue is incompatible with --branch, --all and --merge
[255]
$ hg transplant --all tip
abort: --all requires a branch revision
[255]
$ hg transplant --all --branch default tip
abort: --all is incompatible with a revision list
[255]
$ echo r1 > r1
$ hg ci -Amr1 -d'0 0'
adding r1
$ hg co -q null
$ hg transplant tip
abort: no revision checked out
[255]
$ hg up -q
$ echo r2 > r2
$ hg ci -Amr2 -d'1 0'
adding r2
$ hg up 0
0 files updated, 0 files merged, 1 files removed, 0 files unresolved
$ echo b1 > b1
$ hg ci -Amb1 -d '0 0'
adding b1
created new head
$ hg merge 1
1 files updated, 0 files merged, 0 files removed, 0 files unresolved
(branch merge, don't forget to commit)
$ hg transplant 1
abort: outstanding uncommitted merges
[255]
$ hg up -qC tip
$ echo b0 > b1
$ hg transplant 1
abort: outstanding local changes
[255]
$ hg up -qC tip
$ echo b2 > b2
$ hg ci -Amb2 -d '1 0'
adding b2
$ echo b3 > b3
$ hg ci -Amb3 -d '2 0'
adding b3
$ hg log --template '{rev} {parents} {desc}\n'
4 b3
3 b2
2 0:17ab29e464c6 b1
1 r2
0 r1
$ hg clone . ../rebase
updating to branch default
4 files updated, 0 files merged, 0 files removed, 0 files unresolved
$ hg init ../emptydest
$ cd ../emptydest
$ hg transplant --source=../t > /dev/null
$ cd ../rebase
$ hg up -C 1
1 files updated, 0 files merged, 3 files removed, 0 files unresolved
rebase b onto r1
(this also tests that editor is not invoked if '--edit' is not specified)
$ HGEDITOR=cat hg transplant -a -b tip
applying 37a1297eb21b
37a1297eb21b transplanted to e234d668f844
applying 722f4667af76
722f4667af76 transplanted to 539f377d78df
applying a53251cdf717
a53251cdf717 transplanted to ffd6818a3975
$ hg log --template '{rev} {parents} {desc}\n'
7 b3
6 b2
5 1:d11e3596cc1a b1
4 b3
3 b2
2 0:17ab29e464c6 b1
1 r2
0 r1
test format of transplant_source
$ hg log -r7 --debug | grep transplant_source
extra: transplant_source=\xa52Q\xcd\xf7\x17g\x9d\x19\x07\xb2\x89\xf9\x91SK\xe0\\\x99z
$ hg log -r7 -T '{extras}\n'
branch=defaulttransplant_source=\xa52Q\xcd\xf7\x17g\x9d\x19\x07\xb2\x89\xf9\x91SK\xe0\\\x99z
$ hg log -r7 -T '{join(extras, " ")}\n'
branch=default transplant_source=\xa52Q\xcd\xf7\x17g\x9d\x19\x07\xb2\x89\xf9\x91SK\xe0\\\x99z
test transplanted revset
$ hg log -r 'transplanted()' --template '{rev} {parents} {desc}\n'
5 1:d11e3596cc1a b1
6 b2
7 b3
$ hg log -r 'transplanted(head())' --template '{rev} {parents} {desc}\n'
7 b3
$ hg help revisions.transplanted
"transplanted([set])"
Transplanted changesets in set, or all transplanted changesets.
test transplanted keyword
$ hg log --template '{rev} {transplanted}\n'
7 a53251cdf717679d1907b289f991534be05c997a
6 722f4667af767100cb15b6a79324bf8abbfe1ef4
5 37a1297eb21b3ef5c5d2ffac22121a0988ed9f21
4
3
2
1
0
test destination() revset predicate with a transplant of a transplant; new
clone so subsequent rollback isn't affected
(this also tests that editor is invoked if '--edit' is specified)
$ hg clone -q . ../destination
$ cd ../destination
$ hg up -Cq 0
$ hg branch -q b4
$ hg ci -qm "b4"
$ hg status --rev "7^1" --rev 7
A b3
$ cat > $TESTTMP/checkeditform.sh <<EOF
> env | grep HGEDITFORM
> true
> EOF
$ cat > $TESTTMP/checkeditform-n-cat.sh <<EOF
> env | grep HGEDITFORM
> cat \$*
> EOF
$ HGEDITOR="sh $TESTTMP/checkeditform-n-cat.sh" hg transplant --edit 7
applying ffd6818a3975
HGEDITFORM=transplant.normal
b3
HG: Enter commit message. Lines beginning with 'HG:' are removed.
HG: Leave message empty to abort commit.
HG: --
HG: user: test
HG: branch 'b4'
HG: added b3
ffd6818a3975 transplanted to 502236fa76bb
$ hg log -r 'destination()'
changeset: 5:e234d668f844
parent: 1:d11e3596cc1a
user: test
date: Thu Jan 01 00:00:00 1970 +0000
summary: b1
changeset: 6:539f377d78df
user: test
date: Thu Jan 01 00:00:01 1970 +0000
summary: b2
changeset: 7:ffd6818a3975
user: test
date: Thu Jan 01 00:00:02 1970 +0000
summary: b3
changeset: 9:502236fa76bb
branch: b4
tag: tip
user: test
date: Thu Jan 01 00:00:02 1970 +0000
summary: b3
$ hg log -r 'destination(a53251cdf717)'
changeset: 7:ffd6818a3975
user: test
date: Thu Jan 01 00:00:02 1970 +0000
summary: b3
changeset: 9:502236fa76bb
branch: b4
tag: tip
user: test
date: Thu Jan 01 00:00:02 1970 +0000
summary: b3
test subset parameter in reverse order
$ hg log -r 'reverse(all()) and destination(a53251cdf717)'
changeset: 9:502236fa76bb
branch: b4
tag: tip
user: test
date: Thu Jan 01 00:00:02 1970 +0000
summary: b3
changeset: 7:ffd6818a3975
user: test
date: Thu Jan 01 00:00:02 1970 +0000
summary: b3
back to the original dir
$ cd ../rebase
rollback the transplant
$ hg rollback
repository tip rolled back to revision 4 (undo transplant)
working directory now based on revision 1
$ hg tip -q
4:a53251cdf717
$ hg parents -q
1:d11e3596cc1a
$ hg status
? b1
? b2
? b3
$ hg clone ../t ../prune
updating to branch default
4 files updated, 0 files merged, 0 files removed, 0 files unresolved
$ cd ../prune
$ hg up -C 1
1 files updated, 0 files merged, 3 files removed, 0 files unresolved
rebase b onto r1, skipping b2
$ hg transplant -a -b tip -p 3
applying 37a1297eb21b
37a1297eb21b transplanted to e234d668f844
applying a53251cdf717
a53251cdf717 transplanted to 7275fda4d04f
$ hg log --template '{rev} {parents} {desc}\n'
6 b3
5 1:d11e3596cc1a b1
4 b3
3 b2
2 0:17ab29e464c6 b1
1 r2
0 r1
test same-parent transplant with --log
$ hg clone -r 1 ../t ../sameparent
adding changesets
adding manifests
adding file changes
added 2 changesets with 2 changes to 2 files
new changesets 17ab29e464c6:d11e3596cc1a
updating to branch default
2 files updated, 0 files merged, 0 files removed, 0 files unresolved
$ cd ../sameparent
$ hg transplant --log -s ../prune 5
searching for changes
applying e234d668f844
e234d668f844 transplanted to e07aea8ecf9c
$ hg log --template '{rev} {parents} {desc}\n'
2 b1
(transplanted from e234d668f844e1b1a765f01db83a32c0c7bfa170)
1 r2
0 r1
remote transplant, and also test that transplant doesn't break with
format-breaking diffopts
$ hg clone -r 1 ../t ../remote
adding changesets
adding manifests
adding file changes
added 2 changesets with 2 changes to 2 files
new changesets 17ab29e464c6:d11e3596cc1a
updating to branch default
2 files updated, 0 files merged, 0 files removed, 0 files unresolved
$ cd ../remote
$ hg --config diff.noprefix=True transplant --log -s ../t 2 4
searching for changes
applying 37a1297eb21b
37a1297eb21b transplanted to c19cf0ccb069
applying a53251cdf717
a53251cdf717 transplanted to f7fe5bf98525
$ hg log --template '{rev} {parents} {desc}\n'
3 b3
(transplanted from a53251cdf717679d1907b289f991534be05c997a)
2 b1
(transplanted from 37a1297eb21b3ef5c5d2ffac22121a0988ed9f21)
1 r2
0 r1
skip previous transplants
$ hg transplant -s ../t -a -b 4
searching for changes
applying 722f4667af76
722f4667af76 transplanted to 47156cd86c0b
$ hg log --template '{rev} {parents} {desc}\n'
4 b2
3 b3
(transplanted from a53251cdf717679d1907b289f991534be05c997a)
2 b1
(transplanted from 37a1297eb21b3ef5c5d2ffac22121a0988ed9f21)
1 r2
0 r1
skip local changes transplanted to the source
$ echo b4 > b4
$ hg ci -Amb4 -d '3 0'
adding b4
$ hg clone ../t ../pullback
updating to branch default
4 files updated, 0 files merged, 0 files removed, 0 files unresolved
$ cd ../pullback
$ hg transplant -s ../remote -a -b tip
searching for changes
applying 4333daefcb15
4333daefcb15 transplanted to 5f42c04e07cc
remote transplant with pull
$ hg serve -R ../t -p $HGPORT -d --pid-file=../t.pid
$ cat ../t.pid >> $DAEMON_PIDS
$ hg clone -r 0 ../t ../rp
adding changesets
adding manifests
adding file changes
added 1 changesets with 1 changes to 1 files
new changesets 17ab29e464c6
updating to branch default
1 files updated, 0 files merged, 0 files removed, 0 files unresolved
$ cd ../rp
$ hg transplant -s http://localhost:$HGPORT/ 37a1297eb21b a53251cdf717
searching for changes
searching for changes
adding changesets
adding manifests
adding file changes
added 1 changesets with 1 changes to 1 files
applying a53251cdf717
a53251cdf717 transplanted to 8d9279348abb
$ hg log --template '{rev} {parents} {desc}\n'
2 b3
1 b1
0 r1
remote transplant without pull
(It was using "2" and "4" (as the previous transplant used to) which referenced
revision different from one run to another)
$ hg pull -q http://localhost:$HGPORT/
$ hg transplant -s http://localhost:$HGPORT/ 8d9279348abb 722f4667af76
skipping already applied revision 2:8d9279348abb
applying 722f4667af76
722f4667af76 transplanted to 76e321915884
transplant --continue
$ hg init ../tc
$ cd ../tc
$ cat <<EOF > foo
> foo
> bar
> baz
> EOF
$ echo toremove > toremove
$ echo baz > baz
$ hg ci -Amfoo
adding baz
adding foo
adding toremove
$ cat <<EOF > foo
> foo2
> bar2
> baz2
> EOF
$ rm toremove
$ echo added > added
$ hg ci -Amfoo2
adding added
removing toremove
$ echo bar > bar
$ cat > baz <<EOF
> before baz
> baz
> after baz
> EOF
$ hg ci -Ambar
adding bar
$ echo bar2 >> bar
$ hg ci -mbar2
$ hg up 0
3 files updated, 0 files merged, 2 files removed, 0 files unresolved
$ echo foobar > foo
$ hg ci -mfoobar
created new head
$ hg transplant 1:3
applying 46ae92138f3c
patching file foo
Hunk #1 FAILED at 0
1 out of 1 hunks FAILED -- saving rejects to file foo.rej
patch failed to apply
abort: fix up the working directory and run hg transplant --continue
[255]
transplant -c shouldn't use an old changeset
$ hg up -C
1 files updated, 0 files merged, 0 files removed, 0 files unresolved
updated to "e8643552fde5: foobar"
1 other heads for branch "default"
$ rm added
$ hg transplant --continue
abort: no transplant to continue
[255]
$ hg transplant 1
applying 46ae92138f3c
patching file foo
Hunk #1 FAILED at 0
1 out of 1 hunks FAILED -- saving rejects to file foo.rej
patch failed to apply
abort: fix up the working directory and run hg transplant --continue
[255]
$ cp .hg/transplant/journal .hg/transplant/journal.orig
$ cat .hg/transplant/journal
# User test
# Date 0 0
# Node ID 46ae92138f3ce0249f6789650403286ead052b6d
# Parent e8643552fde58f57515e19c4b373a57c96e62af3
foo2
$ grep -v 'Date' .hg/transplant/journal.orig > .hg/transplant/journal
$ HGEDITOR="sh $TESTTMP/checkeditform.sh" hg transplant --continue -e
abort: filter corrupted changeset (no user or date)
[255]
$ cp .hg/transplant/journal.orig .hg/transplant/journal
$ HGEDITOR="sh $TESTTMP/checkeditform.sh" hg transplant --continue -e
HGEDITFORM=transplant.normal
46ae92138f3c transplanted as 9159dada197d
$ hg transplant 1:3
skipping already applied revision 1:46ae92138f3c
applying 9d6d6b5a8275
9d6d6b5a8275 transplanted to 2d17a10c922f
applying 1dab759070cf
1dab759070cf transplanted to e06a69927eb0
$ hg locate
added
bar
baz
foo
test multiple revisions and --continue
$ hg up -qC 0
$ echo bazbaz > baz
$ hg ci -Am anotherbaz baz
created new head
$ hg transplant 1:3
applying 46ae92138f3c
46ae92138f3c transplanted to 1024233ea0ba
applying 9d6d6b5a8275
patching file baz
Hunk #1 FAILED at 0
1 out of 1 hunks FAILED -- saving rejects to file baz.rej
patch failed to apply
abort: fix up the working directory and run hg transplant --continue
[255]
$ hg transplant 1:3
abort: transplant in progress
(use 'hg transplant --continue' or 'hg update' to abort)
[255]
$ echo fixed > baz
$ hg transplant --continue
9d6d6b5a8275 transplanted as d80c49962290
applying 1dab759070cf
1dab759070cf transplanted to aa0ffe6bd5ae
$ cd ..
Issue1111: Test transplant --merge
$ hg init t1111
$ cd t1111
$ echo a > a
$ hg ci -Am adda
adding a
$ echo b >> a
$ hg ci -m appendb
$ echo c >> a
$ hg ci -m appendc
$ hg up -C 0
1 files updated, 0 files merged, 0 files removed, 0 files unresolved
$ echo d >> a
$ hg ci -m appendd
created new head
transplant
$ HGEDITOR="sh $TESTTMP/checkeditform.sh" hg transplant -m 1 -e
applying 42dc4432fd35
HGEDITFORM=transplant.merge
1:42dc4432fd35 merged at a9f4acbac129
$ hg update -q -C 2
$ cat > a <<EOF
> x
> y
> z
> EOF
$ hg commit -m replace
$ hg update -q -C 4
$ hg transplant -m 5
applying 600a3cdcb41d
patching file a
Hunk #1 FAILED at 0
1 out of 1 hunks FAILED -- saving rejects to file a.rej
patch failed to apply
abort: fix up the working directory and run hg transplant --continue
[255]
$ HGEDITOR="sh $TESTTMP/checkeditform.sh" hg transplant --continue -e
HGEDITFORM=transplant.merge
600a3cdcb41d transplanted as a3f88be652e0
$ cd ..
test transplant into empty repository
$ hg init empty
$ cd empty
$ hg transplant -s ../t -b tip -a
adding changesets
adding manifests
adding file changes
added 4 changesets with 4 changes to 4 files
new changesets 17ab29e464c6:a53251cdf717
test "--merge" causing pull from source repository on local host
$ hg --config extensions.mq= -q strip 2
$ hg transplant -s ../t --merge tip
searching for changes
searching for changes
adding changesets
adding manifests
adding file changes
added 2 changesets with 2 changes to 2 files
applying a53251cdf717
4:a53251cdf717 merged at 4831f4dc831a
test interactive transplant
$ hg --config extensions.strip= -q strip 0
$ hg -R ../t log -G --template "{rev}:{node|short}"
@ 4:a53251cdf717
|
o 3:722f4667af76
|
o 2:37a1297eb21b
|
| o 1:d11e3596cc1a
|/
o 0:17ab29e464c6
$ hg transplant -q --config ui.interactive=true -s ../t <<EOF
> ?
> x
> q
> EOF
0:17ab29e464c6
apply changeset? [ynmpcq?]: ?
y: yes, transplant this changeset
n: no, skip this changeset
m: merge at this changeset
p: show patch
c: commit selected changesets
q: quit and cancel transplant
?: ? (show this help)
apply changeset? [ynmpcq?]: x
unrecognized response
apply changeset? [ynmpcq?]: q
$ hg transplant -q --config ui.interactive=true -s ../t <<EOF
> p
> y
> n
> n
> m
> c
> EOF
0:17ab29e464c6
apply changeset? [ynmpcq?]: p
--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/r1 Thu Jan 01 00:00:00 1970 +0000
@@ -0,0 +1,1 @@
+r1
apply changeset? [ynmpcq?]: y
1:d11e3596cc1a
apply changeset? [ynmpcq?]: n
2:37a1297eb21b
apply changeset? [ynmpcq?]: n
3:722f4667af76
apply changeset? [ynmpcq?]: m
4:a53251cdf717
apply changeset? [ynmpcq?]: c
$ hg log -G --template "{node|short}"
@ 88be5dde5260
|\
| o 722f4667af76
| |
| o 37a1297eb21b
|/
o 17ab29e464c6
$ hg transplant -q --config ui.interactive=true -s ../t <<EOF
> x
> ?
> y
> q
> EOF
1:d11e3596cc1a
apply changeset? [ynmpcq?]: x
unrecognized response
apply changeset? [ynmpcq?]: ?
y: yes, transplant this changeset
n: no, skip this changeset
m: merge at this changeset
p: show patch
c: commit selected changesets
q: quit and cancel transplant
?: ? (show this help)
apply changeset? [ynmpcq?]: y
4:a53251cdf717
apply changeset? [ynmpcq?]: q
$ hg heads --template "{node|short}\n"
88be5dde5260
$ cd ..
#if unix-permissions system-sh
test filter
$ hg init filter
$ cd filter
$ cat <<'EOF' >test-filter
> #!/bin/sh
> sed 's/r1/r2/' $1 > $1.new
> mv $1.new $1
> EOF
$ chmod +x test-filter
$ hg transplant -s ../t -b tip -a --filter ./test-filter
filtering * (glob)
applying 17ab29e464c6
17ab29e464c6 transplanted to e9ffc54ea104
filtering * (glob)
applying 37a1297eb21b
37a1297eb21b transplanted to 348b36d0b6a5
filtering * (glob)
applying 722f4667af76
722f4667af76 transplanted to 0aa6979afb95
filtering * (glob)
applying a53251cdf717
a53251cdf717 transplanted to 14f8512272b5
$ hg log --template '{rev} {parents} {desc}\n'
3 b3
2 b2
1 b1
0 r2
$ cd ..
test filter with failed patch
$ cd filter
$ hg up 0
0 files updated, 0 files merged, 3 files removed, 0 files unresolved
$ echo foo > b1
$ hg ci -Am foo
adding b1
adding test-filter
created new head
$ hg transplant 1 --filter ./test-filter
filtering * (glob)
applying 348b36d0b6a5
file b1 already exists
1 out of 1 hunks FAILED -- saving rejects to file b1.rej
patch failed to apply
abort: fix up the working directory and run hg transplant --continue
[255]
$ cd ..
test environment passed to filter
$ hg init filter-environment
$ cd filter-environment
$ cat <<'EOF' >test-filter-environment
> #!/bin/sh
> echo "Transplant by $HGUSER" >> $1
> echo "Transplant from rev $HGREVISION" >> $1
> EOF
$ chmod +x test-filter-environment
$ hg transplant -s ../t --filter ./test-filter-environment 0
filtering * (glob)
applying 17ab29e464c6
17ab29e464c6 transplanted to 5190e68026a0
$ hg log --template '{rev} {parents} {desc}\n'
0 r1
Transplant by test
Transplant from rev 17ab29e464c6ca53e329470efe2a9918ac617a6f
$ cd ..
test transplant with filter handles invalid changelog
$ hg init filter-invalid-log
$ cd filter-invalid-log
$ cat <<'EOF' >test-filter-invalid-log
> #!/bin/sh
> echo "" > $1
> EOF
$ chmod +x test-filter-invalid-log
$ hg transplant -s ../t --filter ./test-filter-invalid-log 0
filtering * (glob)
abort: filter corrupted changeset (no user or date)
[255]
$ cd ..
#endif
test with a win32ext like setup (differing EOLs)
$ hg init twin1
$ cd twin1
$ echo a > a
$ echo b > b
$ echo b >> b
$ hg ci -Am t
adding a
adding b
$ echo a > b
$ echo b >> b
$ hg ci -m changeb
$ cd ..
$ hg init twin2
$ cd twin2
$ echo '[patch]' >> .hg/hgrc
$ echo 'eol = crlf' >> .hg/hgrc
$ $PYTHON -c "open('b', 'wb').write(b'b\r\nb\r\n')"
$ hg ci -Am addb
adding b
$ hg transplant -s ../twin1 tip
searching for changes
warning: repository is unrelated
applying 2e849d776c17
2e849d776c17 transplanted to 8e65bebc063e
$ cat b
a\r (esc)
b\r (esc)
$ cd ..
test transplant with merge changeset is skipped
$ hg init merge1a
$ cd merge1a
$ echo a > a
$ hg ci -Am a
adding a
$ hg branch b
marked working directory as branch b
(branches are permanent and global, did you want a bookmark?)
$ hg ci -m branchb
$ echo b > b
$ hg ci -Am b
adding b
$ hg update default
0 files updated, 0 files merged, 1 files removed, 0 files unresolved
$ hg merge b
1 files updated, 0 files merged, 0 files removed, 0 files unresolved
(branch merge, don't forget to commit)
$ hg ci -m mergeb
$ cd ..
$ hg init merge1b
$ cd merge1b
$ hg transplant -s ../merge1a tip
$ cd ..
test transplant with merge changeset accepts --parent
$ hg init merge2a
$ cd merge2a
$ echo a > a
$ hg ci -Am a
adding a
$ hg branch b
marked working directory as branch b
(branches are permanent and global, did you want a bookmark?)
$ hg ci -m branchb
$ echo b > b
$ hg ci -Am b
adding b
$ hg update default
0 files updated, 0 files merged, 1 files removed, 0 files unresolved
$ hg merge b
1 files updated, 0 files merged, 0 files removed, 0 files unresolved
(branch merge, don't forget to commit)
$ hg ci -m mergeb
$ cd ..
$ hg init merge2b
$ cd merge2b
$ hg transplant -s ../merge2a --parent tip tip
abort: be9f9b39483f is not a parent of be9f9b39483f
[255]
$ hg transplant -s ../merge2a --parent 0 tip
applying be9f9b39483f
be9f9b39483f transplanted to 9959e51f94d1
$ cd ..
test transplanting a patch turning into a no-op
$ hg init binarysource
$ cd binarysource
$ echo a > a
$ hg ci -Am adda a
>>> open('b', 'wb').write(b'\0b1') and None
$ hg ci -Am addb b
>>> open('b', 'wb').write(b'\0b2') and None
$ hg ci -m changeb b
$ cd ..
$ hg clone -r0 binarysource binarydest
adding changesets
adding manifests
adding file changes
added 1 changesets with 1 changes to 1 files
new changesets 07f494440405
updating to branch default
1 files updated, 0 files merged, 0 files removed, 0 files unresolved
$ cd binarydest
$ cp ../binarysource/b b
$ hg ci -Am addb2 b
$ hg transplant -s ../binarysource 2
searching for changes
applying 7a7d57e15850
skipping emptied changeset 7a7d57e15850
Test empty result in --continue
$ hg transplant -s ../binarysource 1
searching for changes
applying 645035761929
file b already exists
1 out of 1 hunks FAILED -- saving rejects to file b.rej
patch failed to apply
abort: fix up the working directory and run hg transplant --continue
[255]
$ hg status
? b.rej
$ hg transplant --continue
645035761929 skipped due to empty diff
$ cd ..
Explicitly kill daemons to let the test exit on Windows
$ killdaemons.py
Test that patch-ed files are treated as "modified", when transplant is
aborted by failure of patching, even if none of mode, size and
timestamp of them isn't changed on the filesystem (see also issue4583)
$ cd t
$ cat > $TESTTMP/abort.py <<EOF
> # emulate that patch.patch() is aborted at patching on "abort" file
> from mercurial import error, extensions, patch as patchmod
> def patch(orig, ui, repo, patchname,
> strip=1, prefix=b'', files=None,
> eolmode=b'strict', similarity=0):
> if files is None:
> files = set()
> r = orig(ui, repo, patchname,
> strip=strip, prefix=prefix, files=files,
> eolmode=eolmode, similarity=similarity)
> if b'abort' in files:
> raise error.PatchError('intentional error while patching')
> return r
> def extsetup(ui):
> extensions.wrapfunction(patchmod, 'patch', patch)
> EOF
$ echo X1 > r1
$ hg diff --nodates r1
diff -r a53251cdf717 r1
--- a/r1
+++ b/r1
@@ -1,1 +1,1 @@
-r1
+X1
$ hg commit -m "X1 as r1"
$ echo 'marking to abort patching' > abort
$ hg add abort
$ echo Y1 > r1
$ hg diff --nodates r1
diff -r 22c515968f13 r1
--- a/r1
+++ b/r1
@@ -1,1 +1,1 @@
-X1
+Y1
$ hg commit -m "Y1 as r1"
$ hg update -q -C d11e3596cc1a
$ cat r1
r1
$ cat >> .hg/hgrc <<EOF
> [fakedirstatewritetime]
> # emulate invoking dirstate.write() via repo.status() or markcommitted()
> # at 2000-01-01 00:00
> fakenow = 200001010000
>
> # emulate invoking patch.internalpatch() at 2000-01-01 00:00
> [fakepatchtime]
> fakenow = 200001010000
>
> [extensions]
> fakedirstatewritetime = $TESTDIR/fakedirstatewritetime.py
> fakepatchtime = $TESTDIR/fakepatchtime.py
> abort = $TESTTMP/abort.py
> EOF
$ hg transplant "22c515968f13::"
applying 22c515968f13
22c515968f13 transplanted to * (glob)
applying e38700ba9dd3
intentional error while patching
abort: fix up the working directory and run hg transplant --continue
[255]
$ cat >> .hg/hgrc <<EOF
> [hooks]
> fakedirstatewritetime = !
> fakepatchtime = !
> [extensions]
> abort = !
> EOF
$ cat r1
Y1
$ hg debugstate | grep ' r1$'
n 644 3 unset r1
$ hg status -A r1
M r1
Test that rollback by unexpected failure after transplanting the first
revision restores dirstate correctly.
$ hg rollback -q
$ rm -f abort
$ hg update -q -C d11e3596cc1a
$ hg parents -T "{node|short}\n"
d11e3596cc1a
$ hg status -A
C r1
C r2
$ cat >> .hg/hgrc <<EOF
> [hooks]
> # emulate failure at transplanting the 2nd revision
> pretxncommit.abort = test ! -f abort
> EOF
$ hg transplant "22c515968f13::"
applying 22c515968f13
22c515968f13 transplanted to * (glob)
applying e38700ba9dd3
transaction abort!
rollback completed
abort: pretxncommit.abort hook exited with status 1
[255]
$ cat >> .hg/hgrc <<EOF
> [hooks]
> pretxncommit.abort = !
> EOF
$ hg parents -T "{node|short}\n"
d11e3596cc1a
$ hg status -A
M r1
? abort
C r2
$ cd ..