Mercurial > hg-stable
view tests/test-convert-bzr.t @ 50391:12f13b13f414 stable
revlog: avoid possible collision between directory and temporary index
Since 6.4, we create a temporary index file to write the split data without
overwriting the inline version too early. However, the store encoding does not
prevent these new `.i.s` file to collide with a directory with the same name.
While the odds for such a collision to happens are fairly low, the collision
would prevent Mercurial from working.
The store encoding have a mitigation solution in place to prevent such
collisions from happening for `.i` and `.d` files, but not for other extensions.
We cannot update this encoding scheme to solve the issue since it would diverge
from older version of Mercurial.
Instead, we create an alternative directory tree dedicated to such files.
The use of the `.i` extension combined with store encoding will prevent
collisions there.
author | Pierre-Yves David <pierre-yves.david@octobus.net> |
---|---|
date | Thu, 08 Jun 2023 14:28:21 +0200 |
parents | 26127236b229 |
children | fe08a0bfa9fd |
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#require bzr $ . "$TESTDIR/bzr-definitions" create and rename on the same file in the same step $ mkdir test-createandrename $ cd test-createandrename $ brz init -q source test empty repo conversion (issue3233) $ hg convert source source-hg initializing destination source-hg repository scanning source... sorting... converting... back to the rename stuff $ cd source $ echo a > a $ echo c > c $ echo e > e $ brz add -q a c e $ brz commit -q -m 'Initial add: a, c, e' $ brz mv a b a => b $ brz mv c d c => d $ brz mv e f e => f $ echo a2 >> a $ mkdir e $ brz add -q a e $ brz commit -q -m 'rename a into b, create a, rename c into d' $ cd .. $ hg convert source source-hg scanning source... sorting... converting... 1 Initial add: a, c, e 0 rename a into b, create a, rename c into d $ glog -R source-hg o 1@source "rename a into b, create a, rename c into d" files+: [b d f], files-: [c e], files: [a] | o 0@source "Initial add: a, c, e" files+: [a c e], files-: [], files: [] manifest $ hg manifest -R source-hg -r tip a b d f test --rev option $ hg convert -r 1 source source-1-hg initializing destination source-1-hg repository scanning source... sorting... converting... 0 Initial add: a, c, e $ glog -R source-1-hg o 0@source "Initial add: a, c, e" files+: [a c e], files-: [], files: [] test with filemap $ cat > filemap <<EOF > exclude a > EOF $ hg convert --filemap filemap source source-filemap-hg initializing destination source-filemap-hg repository scanning source... sorting... converting... 1 Initial add: a, c, e 0 rename a into b, create a, rename c into d $ hg -R source-filemap-hg manifest -r tip b d f convert from lightweight checkout $ brz checkout --lightweight source source-light $ hg convert -s bzr source-light source-light-hg initializing destination source-light-hg repository warning: lightweight checkouts may cause conversion failures, try with a regular branch instead. $TESTTMP/test-createandrename/source-light does not look like a Bazaar repository abort: source-light: missing or unsupported repository [255] extract timestamps that look just like hg's {date|isodate}: yyyy-mm-dd HH:MM zzzz (no seconds!) compare timestamps $ cd source $ brz log | \ > sed '/timestamp/!d;s/.\{15\}\([0-9: -]\{16\}\):.. \(.[0-9]\{4\}\)/\1 \2/' \ > > ../bzr-timestamps $ cd .. $ hg -R source-hg log --template "{date|isodate}\n" > hg-timestamps $ cmp bzr-timestamps hg-timestamps || diff -u bzr-timestamps hg-timestamps $ cd .. merge $ mkdir test-merge $ cd test-merge $ cat > helper.py <<EOF > import sys > from breezy import workingtree > import breezy.bzr.bzrdir > wt = workingtree.WorkingTree.open('.') > > message, stamp = sys.argv[1:] > wt.commit(message, timestamp=int(stamp)) > EOF $ brz init -q source $ cd source $ echo content > a $ echo content2 > b $ brz add -q a b $ brz commit -q -m 'Initial add' $ cd .. $ brz branch -q source source-improve $ cd source $ echo more >> a $ "$PYTHON" ../helper.py 'Editing a' 100 $ cd ../source-improve $ echo content3 >> b $ "$PYTHON" ../helper.py 'Editing b' 200 $ cd ../source $ brz merge -q ../source-improve $ brz commit -q -m 'Merged improve branch' $ cd .. $ hg convert --datesort source source-hg initializing destination source-hg repository scanning source... sorting... converting... 3 Initial add 2 Editing a 1 Editing b 0 Merged improve branch $ glog -R source-hg o 3@source "Merged improve branch" files+: [], files-: [], files: [] |\ | o 2@source-improve "Editing b" files+: [], files-: [], files: [b] | | o | 1@source "Editing a" files+: [], files-: [], files: [a] |/ o 0@source "Initial add" files+: [a b], files-: [], files: [] $ cd .. #if symlink execbit symlinks and executable files $ mkdir test-symlinks $ cd test-symlinks $ brz init -q source $ cd source $ touch program $ chmod +x program $ ln -s program altname $ mkdir d $ echo a > d/a $ ln -s a syma $ brz add -q altname program syma d/a $ brz commit -q -m 'Initial setup' $ touch newprog $ chmod +x newprog $ rm altname $ ln -s newprog altname $ chmod -x program $ brz add -q newprog $ brz commit -q -m 'Symlink changed, x bits changed' $ cd .. $ hg convert source source-hg initializing destination source-hg repository scanning source... sorting... converting... 1 Initial setup 0 Symlink changed, x bits changed $ manifest source-hg 0 % manifest of 0 644 @ altname 644 d/a 755 * program 644 @ syma $ manifest source-hg tip % manifest of tip 644 @ altname 644 d/a 755 * newprog 644 program 644 @ syma test the symlinks can be recreated $ cd source-hg $ hg up 5 files updated, 0 files merged, 0 files removed, 0 files unresolved $ hg cat syma; echo a $ cd ../.. #endif Multiple branches $ brz init-repo -q --no-trees repo $ brz init -q repo/trunk $ brz co repo/trunk repo-trunk $ cd repo-trunk $ echo a > a $ brz add -q a $ brz ci -qm adda $ brz tag trunk-tag Created tag trunk-tag. $ brz switch -b branch Tree is up to date at revision 1. Switched to branch*repo/branch/ (glob) $ echo b > b $ brz add -q b $ brz ci -qm addb $ brz tag branch-tag Created tag branch-tag. $ brz switch --force ../repo/trunk Updated to revision 1. Switched to branch*/repo/trunk/ (glob) $ echo a >> a $ brz ci -qm changea $ cd .. $ hg convert --datesort repo repo-bzr initializing destination repo-bzr repository scanning source... sorting... converting... 2 adda 1 addb 0 changea updating tags $ (cd repo-bzr; glog) o 3@default "update tags" files+: [.hgtags], files-: [], files: [] | o 2@default "changea" files+: [], files-: [], files: [a] | | o 1@branch "addb" files+: [b], files-: [], files: [] |/ o 0@default "adda" files+: [a], files-: [], files: [] Test tags (converted identifiers are not stable because bzr ones are not and get incorporated in extra fields). $ hg -R repo-bzr tags tip 3:* (glob) branch-tag 1:* (glob) trunk-tag 0:* (glob) Nested repositories (issue3254) $ brz init-repo -q --no-trees repo/inner $ brz init -q repo/inner/trunk $ brz co repo/inner/trunk inner-trunk $ cd inner-trunk $ echo b > b $ brz add -q b $ brz ci -qm addb $ cd .. $ hg convert --datesort repo noinner-bzr initializing destination noinner-bzr repository scanning source... sorting... converting... 2 adda 1 addb 0 changea updating tags