unionrepo: read-only operations on a union of two localrepos
unionrepo is just like bundlerepo without bundles.
The implementation is very similar to bundlerepo, but I don't see any obvious
way to generalize it.
Some most obvious use cases for this would be log and diff across local repos,
as a kind of preview of pulls, for instance:
$ hg -R union:repo1+repo2 heads
$ hg -R union:repo1+repo2 log -r REPO1REV -r REPO2REV
$ hg -R union:repo1+repo2 log -r '::REPO1REV-::REPO2REV'
$ hg -R union:repo1+repo2 log -r 'ancestor(REPO1REV,REPO2REV)'
$ hg -R union:repo1+repo2 diff -r REPO1REV -r REPO2REV
This is going to be used in RhodeCode, and Bitbucket already uses something
similar. Having a core implementation would be beneficial.
$ "$TESTDIR/hghave" bzr114 || exit 80
$ . "$TESTDIR/bzr-definitions"
The file/directory replacement can only be reproduced on
bzr >= 1.4. Merge it back in test-convert-bzr-directories once
this version becomes mainstream.
replace file with dir
$ mkdir test-replace-file-with-dir
$ cd test-replace-file-with-dir
$ bzr init -q source
$ cd source
$ echo d > d
$ bzr add -q d
$ bzr commit -q -m 'add d file'
$ rm d
$ mkdir d
$ bzr add -q d
$ bzr commit -q -m 'replace with d dir'
$ echo a > d/a
$ bzr add -q d/a
$ bzr commit -q -m 'add d/a'
$ cd ..
$ hg convert source source-hg
initializing destination source-hg repository
scanning source...
sorting...
converting...
2 add d file
1 replace with d dir
0 add d/a
$ manifest source-hg tip
% manifest of tip
644 d/a
$ cd source-hg
$ hg update
1 files updated, 0 files merged, 0 files removed, 0 files unresolved
$ cd ../..