branchcache: skip entries that are topological heads in the on disk file
In the majority of cases, topological heads are also branch heads. We have
efficient way to get the topological heads and efficient way to retrieve
their branch information. So there is little value in putting them in the branch
cache file explicitly. On the contrary, writing them explicitly tend to create
very large cache file that are inefficient to read and update.
So the branch cache v3 format is no longer including them. This changeset focus
on the format aspect and have no focus on the performance aspect. We will cover
that later.
#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