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largefiles: for update -C, only update largefiles when necessary...
largefiles: for update -C, only update largefiles when necessary Before, a --clean update with largefiles would use the "optimization" that it didn't read hashes from standin files before and after the update. Instead of trusting the content of the standin files, it would rehash all the actual largefiles that lfdirstate reported clean and update the standins that didn't have the expected content. It could thus in some "impossible" situations automatically recover from some "largefile got out sync with its standin" issues (even there apparently still were weird corner cases where it could fail). This extra checking is similar to what core --clean intentionally do not do, and it made update --clean unbearable slow. Usually in core Mercurial, --clean will rely on the dirstate to find the files it should update. (It is thus intentionally possible (when trying to trick the system or if there should be bugs) to end up in situations where --clean not will restore the working directory content correctly.) Checking every file when we "know" it is ok is however not an option - that would be too slow. Instead, trust the content of the standin files. Use the same logic for --clean as for linear updates and trust the dirstate and that our "logic" will keep them in sync. It is much cheaper to just rehash the largefiles reported dirty by a status walk and read all standins than to hash largefiles. Most of the changes are just a change of indentation now when the different kinds of updates no longer are handled that differently. Standins for added files are however only written when doing a normal update, while deleted and removed files only will be updated for --clean updates.
Matt Mackall - - Load All Authors

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test-strip.t
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$ echo "[extensions]" >> $HGRCPATH
$ echo "strip=" >> $HGRCPATH
$ restore() {
> hg unbundle -q .hg/strip-backup/*
> rm .hg/strip-backup/*
> }
$ teststrip() {
> hg up -C $1
> echo % before update $1, strip $2
> hg parents
> hg --traceback strip $2
> echo % after update $1, strip $2
> hg parents
> restore
> }
$ hg init test
$ cd test
$ echo foo > bar
$ hg ci -Ama
adding bar
$ echo more >> bar
$ hg ci -Amb
$ echo blah >> bar
$ hg ci -Amc
$ hg up 1
1 files updated, 0 files merged, 0 files removed, 0 files unresolved
$ echo blah >> bar
$ hg ci -Amd
created new head
$ echo final >> bar
$ hg ci -Ame
$ hg log
changeset: 4:443431ffac4f
tag: tip
user: test
date: Thu Jan 01 00:00:00 1970 +0000
summary: e
changeset: 3:65bd5f99a4a3
parent: 1:ef3a871183d7
user: test
date: Thu Jan 01 00:00:00 1970 +0000
summary: d
changeset: 2:264128213d29
user: test
date: Thu Jan 01 00:00:00 1970 +0000
summary: c
changeset: 1:ef3a871183d7
user: test
date: Thu Jan 01 00:00:00 1970 +0000
summary: b
changeset: 0:9ab35a2d17cb
user: test
date: Thu Jan 01 00:00:00 1970 +0000
summary: a
$ teststrip 4 4
0 files updated, 0 files merged, 0 files removed, 0 files unresolved
% before update 4, strip 4
changeset: 4:443431ffac4f
tag: tip
user: test
date: Thu Jan 01 00:00:00 1970 +0000
summary: e
1 files updated, 0 files merged, 0 files removed, 0 files unresolved
saved backup bundle to $TESTTMP/test/.hg/strip-backup/*-backup.hg (glob)
% after update 4, strip 4
changeset: 3:65bd5f99a4a3
tag: tip
parent: 1:ef3a871183d7
user: test
date: Thu Jan 01 00:00:00 1970 +0000
summary: d
$ teststrip 4 3
1 files updated, 0 files merged, 0 files removed, 0 files unresolved
% before update 4, strip 3
changeset: 4:443431ffac4f
tag: tip
user: test
date: Thu Jan 01 00:00:00 1970 +0000
summary: e
1 files updated, 0 files merged, 0 files removed, 0 files unresolved
saved backup bundle to $TESTTMP/test/.hg/strip-backup/*-backup.hg (glob)
% after update 4, strip 3
changeset: 1:ef3a871183d7
user: test
date: Thu Jan 01 00:00:00 1970 +0000
summary: b
$ teststrip 1 4
0 files updated, 0 files merged, 0 files removed, 0 files unresolved
% before update 1, strip 4
changeset: 1:ef3a871183d7
user: test
date: Thu Jan 01 00:00:00 1970 +0000
summary: b
saved backup bundle to $TESTTMP/test/.hg/strip-backup/*-backup.hg (glob)
% after update 1, strip 4
changeset: 1:ef3a871183d7
user: test
date: Thu Jan 01 00:00:00 1970 +0000
summary: b
$ teststrip 4 2
1 files updated, 0 files merged, 0 files removed, 0 files unresolved
% before update 4, strip 2
changeset: 4:443431ffac4f
tag: tip
user: test
date: Thu Jan 01 00:00:00 1970 +0000
summary: e
saved backup bundle to $TESTTMP/test/.hg/strip-backup/*-backup.hg (glob)
% after update 4, strip 2
changeset: 3:443431ffac4f
tag: tip
user: test
date: Thu Jan 01 00:00:00 1970 +0000
summary: e
$ teststrip 4 1
1 files updated, 0 files merged, 0 files removed, 0 files unresolved
% before update 4, strip 1
changeset: 4:264128213d29
tag: tip
parent: 1:ef3a871183d7
user: test
date: Thu Jan 01 00:00:00 1970 +0000
summary: c
1 files updated, 0 files merged, 0 files removed, 0 files unresolved
saved backup bundle to $TESTTMP/test/.hg/strip-backup/*-backup.hg (glob)
% after update 4, strip 1
changeset: 0:9ab35a2d17cb
tag: tip
user: test
date: Thu Jan 01 00:00:00 1970 +0000
summary: a
$ teststrip null 4
0 files updated, 0 files merged, 1 files removed, 0 files unresolved
% before update null, strip 4
saved backup bundle to $TESTTMP/test/.hg/strip-backup/*-backup.hg (glob)
% after update null, strip 4
$ hg log
changeset: 4:264128213d29
tag: tip
parent: 1:ef3a871183d7
user: test
date: Thu Jan 01 00:00:00 1970 +0000
summary: c
changeset: 3:443431ffac4f
user: test
date: Thu Jan 01 00:00:00 1970 +0000
summary: e
changeset: 2:65bd5f99a4a3
user: test
date: Thu Jan 01 00:00:00 1970 +0000
summary: d
changeset: 1:ef3a871183d7
user: test
date: Thu Jan 01 00:00:00 1970 +0000
summary: b
changeset: 0:9ab35a2d17cb
user: test
date: Thu Jan 01 00:00:00 1970 +0000
summary: a
$ hg up -C 4
1 files updated, 0 files merged, 0 files removed, 0 files unresolved
$ hg parents
changeset: 4:264128213d29
tag: tip
parent: 1:ef3a871183d7
user: test
date: Thu Jan 01 00:00:00 1970 +0000
summary: c
$ hg --config experimental.bundle2-exp=True --config experimental.strip-bundle2-version=INVALID strip 4
1 files updated, 0 files merged, 0 files removed, 0 files unresolved
unknown strip-bundle2-version value 'INVALID'; should be one of ['01', '02']
saved backup bundle to $TESTTMP/test/.hg/strip-backup/264128213d29-0b39d6bf-backup.hg (glob)
$ hg debugbundle .hg/strip-backup/*
264128213d290d868c54642d13aeaa3675551a78
$ restore
$ hg up -C 4
1 files updated, 0 files merged, 0 files removed, 0 files unresolved
$ hg --config experimental.bundle2-exp=True --config experimental.strip-bundle2-version=02 --traceback strip 4
1 files updated, 0 files merged, 0 files removed, 0 files unresolved
saved backup bundle to $TESTTMP/test/.hg/strip-backup/264128213d29-0b39d6bf-backup.hg (glob)
$ hg parents
changeset: 1:ef3a871183d7
user: test
date: Thu Jan 01 00:00:00 1970 +0000
summary: b
$ hg debugbundle .hg/strip-backup/*
Stream params: {}
changegroup -- "{'version': '02'}"
264128213d290d868c54642d13aeaa3675551a78
$ hg incoming .hg/strip-backup/*
comparing with .hg/strip-backup/264128213d29-0b39d6bf-backup.hg
searching for changes
changeset: 4:264128213d29
tag: tip
parent: 1:ef3a871183d7
user: test
date: Thu Jan 01 00:00:00 1970 +0000
summary: c
$ restore
$ hg up -C 4
1 files updated, 0 files merged, 0 files removed, 0 files unresolved
$ hg --config experimental.bundle2-exp=True --config experimental.strip-bundle2-version=02 --traceback strip 4
1 files updated, 0 files merged, 0 files removed, 0 files unresolved
saved backup bundle to $TESTTMP/test/.hg/strip-backup/264128213d29-0b39d6bf-backup.hg (glob)
$ hg parents
changeset: 1:ef3a871183d7
user: test
date: Thu Jan 01 00:00:00 1970 +0000
summary: b
$ hg debugbundle .hg/strip-backup/*
Stream params: {}
changegroup -- "{'version': '02'}"
264128213d290d868c54642d13aeaa3675551a78
$ hg pull .hg/strip-backup/*
pulling from .hg/strip-backup/264128213d29-0b39d6bf-backup.hg
searching for changes
adding changesets
adding manifests
adding file changes
added 1 changesets with 0 changes to 0 files (+1 heads)
(run 'hg heads' to see heads, 'hg merge' to merge)
$ rm .hg/strip-backup/*
$ hg log --graph
o changeset: 4:264128213d29
| tag: tip
| parent: 1:ef3a871183d7
| user: test
| date: Thu Jan 01 00:00:00 1970 +0000
| summary: c
|
| o changeset: 3:443431ffac4f
| | user: test
| | date: Thu Jan 01 00:00:00 1970 +0000
| | summary: e
| |
| o changeset: 2:65bd5f99a4a3
|/ user: test
| date: Thu Jan 01 00:00:00 1970 +0000
| summary: d
|
@ changeset: 1:ef3a871183d7
| user: test
| date: Thu Jan 01 00:00:00 1970 +0000
| summary: b
|
o changeset: 0:9ab35a2d17cb
user: test
date: Thu Jan 01 00:00:00 1970 +0000
summary: a
$ hg up -C 2
1 files updated, 0 files merged, 0 files removed, 0 files unresolved
$ hg merge 4
0 files updated, 0 files merged, 0 files removed, 0 files unresolved
(branch merge, don't forget to commit)
before strip of merge parent
$ hg parents
changeset: 2:65bd5f99a4a3
user: test
date: Thu Jan 01 00:00:00 1970 +0000
summary: d
changeset: 4:264128213d29
tag: tip
parent: 1:ef3a871183d7
user: test
date: Thu Jan 01 00:00:00 1970 +0000
summary: c
$ hg strip 4
1 files updated, 0 files merged, 0 files removed, 0 files unresolved
saved backup bundle to $TESTTMP/test/.hg/strip-backup/*-backup.hg (glob)
after strip of merge parent
$ hg parents
changeset: 1:ef3a871183d7
user: test
date: Thu Jan 01 00:00:00 1970 +0000
summary: b
$ restore
$ hg up
1 files updated, 0 files merged, 0 files removed, 0 files unresolved
$ hg log -G
@ changeset: 4:264128213d29
| tag: tip
| parent: 1:ef3a871183d7
| user: test
| date: Thu Jan 01 00:00:00 1970 +0000
| summary: c
|
| o changeset: 3:443431ffac4f
| | user: test
| | date: Thu Jan 01 00:00:00 1970 +0000
| | summary: e
| |
| o changeset: 2:65bd5f99a4a3
|/ user: test
| date: Thu Jan 01 00:00:00 1970 +0000
| summary: d
|
o changeset: 1:ef3a871183d7
| user: test
| date: Thu Jan 01 00:00:00 1970 +0000
| summary: b
|
o changeset: 0:9ab35a2d17cb
user: test
date: Thu Jan 01 00:00:00 1970 +0000
summary: a
2 is parent of 3, only one strip should happen
$ hg strip "roots(2)" 3
saved backup bundle to $TESTTMP/test/.hg/strip-backup/*-backup.hg (glob)
$ hg log -G
@ changeset: 2:264128213d29
| tag: tip
| user: test
| date: Thu Jan 01 00:00:00 1970 +0000
| summary: c
|
o changeset: 1:ef3a871183d7
| user: test
| date: Thu Jan 01 00:00:00 1970 +0000
| summary: b
|
o changeset: 0:9ab35a2d17cb
user: test
date: Thu Jan 01 00:00:00 1970 +0000
summary: a
$ restore
$ hg log -G
o changeset: 4:443431ffac4f
| tag: tip
| user: test
| date: Thu Jan 01 00:00:00 1970 +0000
| summary: e
|
o changeset: 3:65bd5f99a4a3
| parent: 1:ef3a871183d7
| user: test
| date: Thu Jan 01 00:00:00 1970 +0000
| summary: d
|
| @ changeset: 2:264128213d29
|/ user: test
| date: Thu Jan 01 00:00:00 1970 +0000
| summary: c
|
o changeset: 1:ef3a871183d7
| user: test
| date: Thu Jan 01 00:00:00 1970 +0000
| summary: b
|
o changeset: 0:9ab35a2d17cb
user: test
date: Thu Jan 01 00:00:00 1970 +0000
summary: a
2 different branches: 2 strips
$ hg strip 2 4
1 files updated, 0 files merged, 0 files removed, 0 files unresolved
saved backup bundle to $TESTTMP/test/.hg/strip-backup/*-backup.hg (glob)
$ hg log -G
o changeset: 2:65bd5f99a4a3
| tag: tip
| user: test
| date: Thu Jan 01 00:00:00 1970 +0000
| summary: d
|
@ changeset: 1:ef3a871183d7
| user: test
| date: Thu Jan 01 00:00:00 1970 +0000
| summary: b
|
o changeset: 0:9ab35a2d17cb
user: test
date: Thu Jan 01 00:00:00 1970 +0000
summary: a
$ restore
2 different branches and a common ancestor: 1 strip
$ hg strip 1 "2|4"
1 files updated, 0 files merged, 0 files removed, 0 files unresolved
saved backup bundle to $TESTTMP/test/.hg/strip-backup/*-backup.hg (glob)
$ restore
verify fncache is kept up-to-date
$ touch a
$ hg ci -qAm a
$ cat .hg/store/fncache | sort
data/a.i
data/bar.i
$ hg strip tip
0 files updated, 0 files merged, 1 files removed, 0 files unresolved
saved backup bundle to $TESTTMP/test/.hg/strip-backup/*-backup.hg (glob)
$ cat .hg/store/fncache
data/bar.i
stripping an empty revset
$ hg strip "1 and not 1"
abort: empty revision set
[255]
remove branchy history for qimport tests
$ hg strip 3
saved backup bundle to $TESTTMP/test/.hg/strip-backup/*-backup.hg (glob)
strip of applied mq should cleanup status file
$ echo "mq=" >> $HGRCPATH
$ hg up -C 3
1 files updated, 0 files merged, 0 files removed, 0 files unresolved
$ echo fooagain >> bar
$ hg ci -mf
$ hg qimport -r tip:2
applied patches before strip
$ hg qapplied
2.diff
3.diff
4.diff
stripping revision in queue
$ hg strip 3
1 files updated, 0 files merged, 0 files removed, 0 files unresolved
saved backup bundle to $TESTTMP/test/.hg/strip-backup/*-backup.hg (glob)
applied patches after stripping rev in queue
$ hg qapplied
2.diff
stripping ancestor of queue
$ hg strip 1
1 files updated, 0 files merged, 0 files removed, 0 files unresolved
saved backup bundle to $TESTTMP/test/.hg/strip-backup/*-backup.hg (glob)
applied patches after stripping ancestor of queue
$ hg qapplied
Verify strip protects against stripping wc parent when there are uncommitted mods
$ echo b > b
$ echo bb > bar
$ hg add b
$ hg ci -m 'b'
$ hg log --graph
@ changeset: 1:76dcf9fab855
| tag: tip
| user: test
| date: Thu Jan 01 00:00:00 1970 +0000
| summary: b
|
o changeset: 0:9ab35a2d17cb
user: test
date: Thu Jan 01 00:00:00 1970 +0000
summary: a
$ hg up 0
1 files updated, 0 files merged, 1 files removed, 0 files unresolved
$ echo c > bar
$ hg up -t false
merging bar
merging bar failed!
1 files updated, 0 files merged, 0 files removed, 1 files unresolved
use 'hg resolve' to retry unresolved file merges
[1]
$ hg sum
parent: 1:76dcf9fab855 tip
b
branch: default
commit: 1 modified, 1 unknown, 1 unresolved
update: (current)
mq: 3 unapplied
$ echo c > b
$ hg strip tip
abort: local changes found
[255]
$ hg strip tip --keep
saved backup bundle to $TESTTMP/test/.hg/strip-backup/*-backup.hg (glob)
$ hg log --graph
@ changeset: 0:9ab35a2d17cb
tag: tip
user: test
date: Thu Jan 01 00:00:00 1970 +0000
summary: a
$ hg status
M bar
? b
? bar.orig
$ rm bar.orig
$ hg sum
parent: 0:9ab35a2d17cb tip
a
branch: default
commit: 1 modified, 1 unknown
update: (current)
mq: 3 unapplied
Strip adds, removes, modifies with --keep
$ touch b
$ hg add b
$ hg commit -mb
$ touch c
... with a clean working dir
$ hg add c
$ hg rm bar
$ hg commit -mc
$ hg status
$ hg strip --keep tip
saved backup bundle to $TESTTMP/test/.hg/strip-backup/*-backup.hg (glob)
$ hg status
! bar
? c
... with a dirty working dir
$ hg add c
$ hg rm bar
$ hg commit -mc
$ hg status
$ echo b > b
$ echo d > d
$ hg strip --keep tip
saved backup bundle to $TESTTMP/test/.hg/strip-backup/57e364c8a475-4cfed93c-backup.hg (glob)
$ hg status
M b
! bar
? c
? d
$ cd ..
stripping many nodes on a complex graph (issue3299)
$ hg init issue3299
$ cd issue3299
$ hg debugbuilddag '@a.:a@b.:b.:x<a@a.:a<b@b.:b<a@a.:a'
$ hg strip 'not ancestors(x)'
saved backup bundle to $TESTTMP/issue3299/.hg/strip-backup/*-backup.hg (glob)
test hg strip -B bookmark
$ cd ..
$ hg init bookmarks
$ cd bookmarks
$ hg debugbuilddag '..<2.*1/2:m<2+3:c<m+3:a<2.:b'
$ hg bookmark -r 'a' 'todelete'
$ hg bookmark -r 'b' 'B'
$ hg bookmark -r 'b' 'nostrip'
$ hg bookmark -r 'c' 'delete'
$ hg up -C todelete
0 files updated, 0 files merged, 0 files removed, 0 files unresolved
(activating bookmark todelete)
$ hg strip -B nostrip
bookmark 'nostrip' deleted
abort: empty revision set
[255]
$ hg strip -B todelete
0 files updated, 0 files merged, 0 files removed, 0 files unresolved
saved backup bundle to $TESTTMP/bookmarks/.hg/strip-backup/*-backup.hg (glob)
bookmark 'todelete' deleted
$ hg id -ir dcbb326fdec2
abort: unknown revision 'dcbb326fdec2'!
[255]
$ hg id -ir d62d843c9a01
d62d843c9a01
$ hg bookmarks
B 9:ff43616e5d0f
delete 6:2702dd0c91e7
$ hg strip -B delete
saved backup bundle to $TESTTMP/bookmarks/.hg/strip-backup/*-backup.hg (glob)
bookmark 'delete' deleted
$ hg id -ir 6:2702dd0c91e7
abort: unknown revision '2702dd0c91e7'!
[255]
$ hg update B
0 files updated, 0 files merged, 0 files removed, 0 files unresolved
(activating bookmark B)
$ echo a > a
$ hg add a
$ hg strip -B B
abort: local changes found
[255]
$ hg bookmarks
* B 6:ff43616e5d0f
Make sure no one adds back a -b option:
$ hg strip -b tip
hg strip: option -b not recognized
hg strip [-k] [-f] [-n] [-B bookmark] [-r] REV...
strip changesets and all their descendants from the repository
(use "hg help -e strip" to show help for the strip extension)
options ([+] can be repeated):
-r --rev REV [+] strip specified revision (optional, can specify revisions
without this option)
-f --force force removal of changesets, discard uncommitted changes
(no backup)
--no-backup no backups
-k --keep do not modify working directory during strip
-B --bookmark VALUE remove revs only reachable from given bookmark
--mq operate on patch repository
(use "hg strip -h" to show more help)
[255]
$ cd ..
Verify bundles don't get overwritten:
$ hg init doublebundle
$ cd doublebundle
$ touch a
$ hg commit -Aqm a
$ touch b
$ hg commit -Aqm b
$ hg strip -r 0
0 files updated, 0 files merged, 2 files removed, 0 files unresolved
saved backup bundle to $TESTTMP/doublebundle/.hg/strip-backup/3903775176ed-e68910bd-backup.hg (glob)
$ ls .hg/strip-backup
3903775176ed-e68910bd-backup.hg
$ hg pull -q -r 3903775176ed .hg/strip-backup/3903775176ed-e68910bd-backup.hg
$ hg strip -r 0
saved backup bundle to $TESTTMP/doublebundle/.hg/strip-backup/3903775176ed-54390173-backup.hg (glob)
$ ls .hg/strip-backup
3903775176ed-54390173-backup.hg
3903775176ed-e68910bd-backup.hg