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copies: add config option for writing copy metadata to file and/or changset...
copies: add config option for writing copy metadata to file and/or changset This introduces a config option that lets you choose to write copy metadata to the changeset extras instead of to filelog. There's also an option to write it to both places. I imagine that may possibly be useful when transitioning an existing repo. The copy metadata is stored as two fields in extras: one for copies since p1 and one for copies since p2. I may need to add more information later in order to make copy tracing faster. Specifically, I'm thinking out recording which files were added or removed so that copies._chaincopies() doesn't have to look at the manifest for that. But that would just be an optimization and that can be added once we know if it's necessary. I have also considered saving space by using replacing the destination file path by an index into the "files" list, but that can also be changed later (but before the feature is ready to release). Differential Revision: https://phab.mercurial-scm.org/D6183

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test-repair-strip.t
141 lines | 4.1 KiB | text/troff | Tads3Lexer
#require unix-permissions no-root reporevlogstore
$ cat > $TESTTMP/dumpjournal.py <<EOF
> import sys
> for entry in sys.stdin.read().split('\n'):
> if entry:
> print(entry.split('\x00')[0])
> EOF
$ echo "[extensions]" >> $HGRCPATH
$ echo "mq=">> $HGRCPATH
$ teststrip() {
> hg -q up -C $1
> echo % before update $1, strip $2
> hg parents
> chmod -$3 $4
> hg strip $2 2>&1 | sed 's/\(bundle\).*/\1/' | sed 's/Permission denied.*\.hg\/store\/\(.*\)/Permission denied \.hg\/store\/\1/'
> echo % after update $1, strip $2
> chmod +$3 $4
> hg verify
> echo % journal contents
> if [ -f .hg/store/journal ]; then
> cat .hg/store/journal | "$PYTHON" $TESTTMP/dumpjournal.py
> else
> echo "(no journal)"
> fi
> ls .hg/store/journal >/dev/null 2>&1 && hg recover
> ls .hg/strip-backup/* >/dev/null 2>&1 && hg unbundle -q .hg/strip-backup/*
> rm -rf .hg/strip-backup
> }
$ hg init test
$ cd test
$ echo a > a
$ hg -q ci -m "a" -A
$ echo b > b
$ hg -q ci -m "b" -A
$ echo b2 >> b
$ hg -q ci -m "b2" -A
$ echo c > c
$ hg -q ci -m "c" -A
$ teststrip 0 2 w .hg/store/data/b.i
% before update 0, strip 2
changeset: 0:cb9a9f314b8b
user: test
date: Thu Jan 01 00:00:00 1970 +0000
summary: a
saved backup bundle
transaction abort!
failed to truncate data/b.i
rollback failed - please run hg recover
(failure reason: [Errno 13] Permission denied .hg/store/data/b.i')
strip failed, backup bundle
abort: Permission denied .hg/store/data/b.i'
% after update 0, strip 2
abandoned transaction found - run hg recover
checking changesets
checking manifests
crosschecking files in changesets and manifests
checking files
b@?: rev 1 points to nonexistent changeset 2
(expected 1)
b@?: 736c29771fba not in manifests
warning: orphan data file 'data/c.i'
checked 2 changesets with 3 changes to 2 files
2 warnings encountered!
2 integrity errors encountered!
% journal contents
00changelog.i
00manifest.i
data/b.i
data/c.i
rolling back interrupted transaction
checking changesets
checking manifests
crosschecking files in changesets and manifests
checking files
checked 2 changesets with 2 changes to 2 files
$ teststrip 0 2 r .hg/store/data/b.i
% before update 0, strip 2
changeset: 0:cb9a9f314b8b
user: test
date: Thu Jan 01 00:00:00 1970 +0000
summary: a
abort: Permission denied .hg/store/data/b.i'
% after update 0, strip 2
checking changesets
checking manifests
crosschecking files in changesets and manifests
checking files
checked 4 changesets with 4 changes to 3 files
% journal contents
(no journal)
$ teststrip 0 2 w .hg/store/00manifest.i
% before update 0, strip 2
changeset: 0:cb9a9f314b8b
user: test
date: Thu Jan 01 00:00:00 1970 +0000
summary: a
saved backup bundle
transaction abort!
failed to truncate 00manifest.i
rollback failed - please run hg recover
(failure reason: [Errno 13] Permission denied .hg/store/00manifest.i')
strip failed, backup bundle
abort: Permission denied .hg/store/00manifest.i'
% after update 0, strip 2
abandoned transaction found - run hg recover
checking changesets
checking manifests
manifest@?: rev 2 points to nonexistent changeset 2
manifest@?: 3362547cdf64 not in changesets
manifest@?: rev 3 points to nonexistent changeset 3
manifest@?: 265a85892ecb not in changesets
crosschecking files in changesets and manifests
c@3: in manifest but not in changeset
checking files
b@?: rev 1 points to nonexistent changeset 2
(expected 1)
c@?: rev 0 points to nonexistent changeset 3
checked 2 changesets with 4 changes to 3 files
1 warnings encountered!
7 integrity errors encountered!
(first damaged changeset appears to be 3)
% journal contents
00changelog.i
00manifest.i
data/b.i
data/c.i
rolling back interrupted transaction
checking changesets
checking manifests
crosschecking files in changesets and manifests
checking files
checked 2 changesets with 2 changes to 2 files
$ cd ..