phases: introduce phasecache
The original motivation was changectx.phase() had special logic to
correctly lookup in repo._phaserev, including invalidating it when
necessary. And at other places, repo._phaserev was accessed directly.
This led to the discovery that phases state including _phaseroots,
_phaserev and _dirtyphase was manipulated in localrepository.py,
phases.py, repair.py, etc. phasecache helps encapsulating that.
This patch replaces all phase state in localrepo with phasecache and
adjust related code except for advance/retractboundary() in phases.
These still access to phasecache internals directly. This will be
addressed in a followup.
Create a repo with some stuff in it:
$ hg init a
$ cd a
$ echo a > a
$ echo a > d
$ echo a > e
$ hg ci -qAm0
$ echo b > a
$ hg ci -m1 -u bar
$ hg mv a b
$ hg ci -m2
$ hg cp b c
$ hg ci -m3 -u baz
$ echo b > d
$ echo f > e
$ hg ci -m4
$ hg up -q 3
$ echo b > e
$ hg branch -q stable
$ hg ci -m5
$ hg merge -q default --tool internal:local
$ hg branch -q default
$ hg ci -m6
$ hg phase --public 3
$ hg phase --force --secret 6
$ hg --config extensions.graphlog= log -G --template '{author}@{rev}.{phase}: {desc}\n'
@ test@6.secret: 6
|\
| o test@5.draft: 5
| |
o | test@4.draft: 4
|/
o baz@3.public: 3
|
o test@2.public: 2
|
o bar@1.public: 1
|
o test@0.public: 0
Need to specify a rev:
$ hg graft
abort: no revisions specified
[255]
Can't graft ancestor:
$ hg graft 1 2
skipping ancestor revision 1
skipping ancestor revision 2
[255]
Can't graft with dirty wd:
$ hg up -q 0
$ echo foo > a
$ hg graft 1
abort: outstanding uncommitted changes
[255]
$ hg revert a
Graft a rename:
$ hg graft 2 -u foo
grafting revision 2
merging a and b to b
$ hg export tip --git
# HG changeset patch
# User foo
# Date 0 0
# Node ID ef0ef43d49e79e81ddafdc7997401ba0041efc82
# Parent 68795b066622ca79a25816a662041d8f78f3cd9e
2
diff --git a/a b/b
rename from a
rename to b
Look for extra:source
$ hg log --debug -r tip
changeset: 7:ef0ef43d49e79e81ddafdc7997401ba0041efc82
tag: tip
phase: draft
parent: 0:68795b066622ca79a25816a662041d8f78f3cd9e
parent: -1:0000000000000000000000000000000000000000
manifest: 7:e59b6b228f9cbf9903d5e9abf996e083a1f533eb
user: foo
date: Thu Jan 01 00:00:00 1970 +0000
files+: b
files-: a
extra: branch=default
extra: source=5c095ad7e90f871700f02dd1fa5012cb4498a2d4
description:
2
Graft out of order, skipping a merge and a duplicate
$ hg graft 1 5 4 3 'merge()' 2 -n
skipping ungraftable merge revision 6
skipping already grafted revision 2
grafting revision 1
grafting revision 5
grafting revision 4
grafting revision 3
$ hg graft 1 5 4 3 'merge()' 2 --debug
skipping ungraftable merge revision 6
scanning for duplicate grafts
skipping already grafted revision 2
grafting revision 1
searching for copies back to rev 1
unmatched files in local:
b
all copies found (* = to merge, ! = divergent):
b -> a *
checking for directory renames
resolving manifests
overwrite: False, partial: False
ancestor: 68795b066622, local: ef0ef43d49e7+, remote: 5d205f8b35b6
b: local copied/moved to a -> m
preserving b for resolve of b
updating: b 1/1 files (100.00%)
picked tool 'internal:merge' for b (binary False symlink False)
merging b and a to b
my b@ef0ef43d49e7+ other a@5d205f8b35b6 ancestor a@68795b066622
premerge successful
b
grafting revision 5
searching for copies back to rev 1
resolving manifests
overwrite: False, partial: False
ancestor: 4c60f11aa304, local: 6b9e5368ca4e+, remote: 97f8bfe72746
e: remote is newer -> g
updating: e 1/1 files (100.00%)
getting e
e
grafting revision 4
searching for copies back to rev 1
resolving manifests
overwrite: False, partial: False
ancestor: 4c60f11aa304, local: 1905859650ec+, remote: 9c233e8e184d
e: versions differ -> m
d: remote is newer -> g
preserving e for resolve of e
updating: d 1/2 files (50.00%)
getting d
updating: e 2/2 files (100.00%)
picked tool 'internal:merge' for e (binary False symlink False)
merging e
my e@1905859650ec+ other e@9c233e8e184d ancestor e@68795b066622
warning: conflicts during merge.
merging e incomplete! (edit conflicts, then use 'hg resolve --mark')
abort: unresolved conflicts, can't continue
(use hg resolve and hg graft --continue)
[255]
Continue without resolve should fail:
$ hg graft -c
grafting revision 4
abort: unresolved merge conflicts (see hg help resolve)
[255]
Fix up:
$ echo b > e
$ hg resolve -m e
Continue with a revision should fail:
$ hg graft -c 6
abort: can't specify --continue and revisions
[255]
Continue for real, clobber usernames
$ hg graft -c -U
grafting revision 4
grafting revision 3
Compare with original:
$ hg diff -r 6
$ hg status --rev 0:. -C
M d
M e
A b
a
A c
a
R a
View graph:
$ hg --config extensions.graphlog= log -G --template '{author}@{rev}.{phase}: {desc}\n'
@ test@11.draft: 3
|
o test@10.draft: 4
|
o test@9.draft: 5
|
o bar@8.draft: 1
|
o foo@7.draft: 2
|
| o test@6.secret: 6
| |\
| | o test@5.draft: 5
| | |
| o | test@4.draft: 4
| |/
| o baz@3.public: 3
| |
| o test@2.public: 2
| |
| o bar@1.public: 1
|/
o test@0.public: 0
Graft again onto another branch should preserve the original source
$ hg up -q 0
$ echo 'g'>g
$ hg add g
$ hg ci -m 7
created new head
$ hg graft 7
grafting revision 7
$ hg log -r 7 --template '{rev}:{node}\n'
7:ef0ef43d49e79e81ddafdc7997401ba0041efc82
$ hg log -r 2 --template '{rev}:{node}\n'
2:5c095ad7e90f871700f02dd1fa5012cb4498a2d4
$ hg log --debug -r tip
changeset: 13:9db0f28fd3747e92c57d015f53b5593aeec53c2d
tag: tip
phase: draft
parent: 12:b592ea63bb0c19a6c5c44685ee29a2284f9f1b8f
parent: -1:0000000000000000000000000000000000000000
manifest: 13:dc313617b8c32457c0d589e0dbbedfe71f3cd637
user: foo
date: Thu Jan 01 00:00:00 1970 +0000
files+: b
files-: a
extra: branch=default
extra: source=5c095ad7e90f871700f02dd1fa5012cb4498a2d4
description:
2
Disallow grafting an already grafted cset onto its original branch
$ hg up -q 6
$ hg graft 7
skipping already grafted revision 7 (was grafted from 2)
[255]
Disallow grafting already grafted csets with the same origin onto each other
$ hg up -q 13
$ hg graft 2
skipping already grafted revision 2
[255]
$ hg graft 7
skipping already grafted revision 7 (same origin 2)
[255]
$ hg up -q 7
$ hg graft 2
skipping already grafted revision 2
[255]
$ hg graft tip
skipping already grafted revision 13 (same origin 2)
[255]