merge: let the user choose to merge, keep local or keep remote subrepo revisions
When a subrepo has changed on the local and remote revisions, prompt the user
whether it wants to merge those subrepo revisions, keep the local revision or
keep the remote revision.
Up until now mercurial would always perform a merge on a subrepo that had
changed on the local and the remote revisions. This is often inconvenient. For
example:
- You may want to perform the actual subrepo merge after you have merged the
parent subrepo files.
- Some subrepos may be considered "read only", in the sense that you are not
supposed to add new revisions to them. In those cases "merging a subrepo" means
choosing which _existing_ revision you want to use on the merged revision. This
is often the case for subrepos that contain binary dependencies (such as DLLs,
etc).
This new prompt makes mercurial better cope with those common scenarios.
Notes:
- The default behavior (which is the one that is used when ui is not
interactive) remains unchanged (i.e. merge is the default action).
- This prompt will be shown even if the ui --tool flag is set.
- I don't know of a way to test the "keep local" and "keep remote" options (i.e.
to force the test to choose those options).
# HG changeset patch
# User Angel Ezquerra <angel.ezquerra@gmail.com>
# Date
1378420708 -7200
# Fri Sep 06 00:38:28 2013 +0200
# Node ID
2fb9cb0c7b26303ac3178b7739975e663075857d
# Parent
50d721553198cea51c30f53b76d41dc919280097
merge: let the user choose to merge, keep local or keep remote subrepo revisions
When a subrepo has changed on the local and remote revisions, prompt the user
whether it wants to merge those subrepo revisions, keep the local revision or
keep the remote revision.
Up until now mercurial would always perform a merge on a subrepo that had
changed on the local and the remote revisions. This is often inconvenient. For
example:
- You may want to perform the actual subrepo merge after you have merged the
parent subrepo files.
- Some subrepos may be considered "read only", in the sense that you are not
supposed to add new revisions to them. In those cases "merging a subrepo" means
choosing which _existing_ revision you want to use on the merged revision. This
is often the case for subrepos that contain binary dependencies (such as DLLs,
etc).
This new prompt makes mercurial better cope with those common scenarios.
Notes:
- The default behavior (which is the one that is used when ui is not
interactive) remains unchanged (i.e. merge is the default action).
- This prompt will be shown even if the ui --tool flag is set.
- I don't know of a way to test the "keep local" and "keep remote" options (i.e.
to force the test to choose those options).
$ "$TESTDIR/hghave" svn15 || exit 80
$ SVNREPOPATH=`pwd`/svn-repo
#if windows
$ SVNREPOURL=file:///`python -c "import urllib, sys; sys.stdout.write(urllib.quote(sys.argv[1]))" "$SVNREPOPATH"`
#else
$ SVNREPOURL=file://`python -c "import urllib, sys; sys.stdout.write(urllib.quote(sys.argv[1]))" "$SVNREPOPATH"`
#endif
create subversion repo
$ WCROOT="`pwd`/svn-wc"
$ svnadmin create svn-repo
$ svn co "$SVNREPOURL" svn-wc
Checked out revision 0.
$ cd svn-wc
$ mkdir src
$ echo alpha > src/alpha
$ svn add src
A src
A src/alpha (glob)
$ mkdir externals
$ echo other > externals/other
$ svn add externals
A externals
A externals/other (glob)
$ svn ci -m 'Add alpha'
Adding externals
Adding externals/other (glob)
Adding src
Adding src/alpha (glob)
Transmitting file data ..
Committed revision 1.
$ svn up -q
$ echo "externals -r1 $SVNREPOURL/externals" > extdef
$ svn propset -F extdef svn:externals src
property 'svn:externals' set on 'src'
$ svn ci -m 'Setting externals'
Sending src
Committed revision 2.
$ cd ..
create hg repo
$ mkdir sub
$ cd sub
$ hg init t
$ cd t
first revision, no sub
$ echo a > a
$ hg ci -Am0
adding a
add first svn sub with leading whitespaces
$ echo "s = [svn] $SVNREPOURL/src" >> .hgsub
$ echo "subdir/s = [svn] $SVNREPOURL/src" >> .hgsub
$ svn co --quiet "$SVNREPOURL"/src s
$ mkdir subdir
$ svn co --quiet "$SVNREPOURL"/src subdir/s
$ hg add .hgsub
$ hg ci -m1
make sure we avoid empty commits (issue2445)
$ hg sum
parent: 1:* tip (glob)
1
branch: default
commit: (clean)
update: (current)
$ hg ci -moops
nothing changed
[1]
debugsub
$ hg debugsub
path s
source file://*/svn-repo/src (glob)
revision 2
path subdir/s
source file://*/svn-repo/src (glob)
revision 2
change file in svn and hg, commit
$ echo a >> a
$ echo alpha >> s/alpha
$ hg sum
parent: 1:* tip (glob)
1
branch: default
commit: 1 modified, 1 subrepos
update: (current)
$ hg commit --subrepos -m 'Message!' | grep -v Updating
committing subrepository s
Sending*s/alpha (glob)
Transmitting file data .
Committed revision 3.
Fetching external item into '*s/externals'* (glob)
External at revision 1.
At revision 3.
$ hg debugsub
path s
source file://*/svn-repo/src (glob)
revision 3
path subdir/s
source file://*/svn-repo/src (glob)
revision 2
missing svn file, commit should fail
$ rm s/alpha
$ hg commit --subrepos -m 'abort on missing file'
committing subrepository s
abort: cannot commit missing svn entries (in subrepo s)
[255]
$ svn revert s/alpha > /dev/null
add an unrelated revision in svn and update the subrepo to without
bringing any changes.
$ svn mkdir "$SVNREPOURL/unrelated" -m 'create unrelated'
Committed revision 4.
$ svn up -q s
$ hg sum
parent: 2:* tip (glob)
Message!
branch: default
commit: (clean)
update: (current)
$ echo a > s/a
should be empty despite change to s/a
$ hg st
add a commit from svn
$ cd "$WCROOT/src"
$ svn up -q
$ echo xyz >> alpha
$ svn propset svn:mime-type 'text/xml' alpha
property 'svn:mime-type' set on 'alpha'
$ svn ci -m 'amend a from svn'
Sending *alpha (glob)
Transmitting file data .
Committed revision 5.
$ cd ../../sub/t
this commit from hg will fail
$ echo zzz >> s/alpha
$ (hg ci --subrepos -m 'amend alpha from hg' 2>&1; echo "[$?]") | grep -vi 'out of date'
committing subrepository s
abort: svn:*Commit failed (details follow): (glob)
[255]
$ svn revert -q s/alpha
this commit fails because of meta changes
$ svn propset svn:mime-type 'text/html' s/alpha
property 'svn:mime-type' set on 's/alpha' (glob)
$ (hg ci --subrepos -m 'amend alpha from hg' 2>&1; echo "[$?]") | grep -vi 'out of date'
committing subrepository s
abort: svn:*Commit failed (details follow): (glob)
[255]
$ svn revert -q s/alpha
this commit fails because of externals changes
$ echo zzz > s/externals/other
$ hg ci --subrepos -m 'amend externals from hg'
committing subrepository s
abort: cannot commit svn externals (in subrepo s)
[255]
$ hg diff --subrepos -r 1:2 | grep -v diff
--- a/.hgsubstate Thu Jan 01 00:00:00 1970 +0000
+++ b/.hgsubstate Thu Jan 01 00:00:00 1970 +0000
@@ -1,2 +1,2 @@
-2 s
+3 s
2 subdir/s
--- a/a Thu Jan 01 00:00:00 1970 +0000
+++ b/a Thu Jan 01 00:00:00 1970 +0000
@@ -1,1 +1,2 @@
a
+a
$ svn revert -q s/externals/other
this commit fails because of externals meta changes
$ svn propset svn:mime-type 'text/html' s/externals/other
property 'svn:mime-type' set on 's/externals/other' (glob)
$ hg ci --subrepos -m 'amend externals from hg'
committing subrepository s
abort: cannot commit svn externals (in subrepo s)
[255]
$ svn revert -q s/externals/other
clone
$ cd ..
$ hg clone t tc
updating to branch default
A tc/s/alpha (glob)
U tc/s (glob)
Fetching external item into 'tc/s/externals'* (glob)
A tc/s/externals/other (glob)
Checked out external at revision 1.
Checked out revision 3.
A tc/subdir/s/alpha (glob)
U tc/subdir/s (glob)
Fetching external item into 'tc/subdir/s/externals'* (glob)
A tc/subdir/s/externals/other (glob)
Checked out external at revision 1.
Checked out revision 2.
3 files updated, 0 files merged, 0 files removed, 0 files unresolved
$ cd tc
debugsub in clone
$ hg debugsub
path s
source file://*/svn-repo/src (glob)
revision 3
path subdir/s
source file://*/svn-repo/src (glob)
revision 2
verify subrepo is contained within the repo directory
$ python -c "import os.path; print os.path.exists('s')"
True
update to nullrev (must delete the subrepo)
$ hg up null
0 files updated, 0 files merged, 3 files removed, 0 files unresolved
$ ls
Check hg update --clean
$ cd "$TESTTMP/sub/t"
$ cd s
$ echo c0 > alpha
$ echo c1 > f1
$ echo c1 > f2
$ svn add f1 -q
$ svn status | sort
? * a (glob)
? * f2 (glob)
A * f1 (glob)
M * alpha (glob)
Performing status on external item at 'externals'* (glob)
X * externals (glob)
$ cd ../..
$ hg -R t update -C
Fetching external item into 't/s/externals'* (glob)
Checked out external at revision 1.
Checked out revision 3.
1 files updated, 0 files merged, 0 files removed, 0 files unresolved
$ cd t/s
$ svn status | sort
? * a (glob)
? * f1 (glob)
? * f2 (glob)
Performing status on external item at 'externals'* (glob)
X * externals (glob)
Sticky subrepositories, no changes
$ cd "$TESTTMP/sub/t"
$ hg id -n
2
$ cd s
$ svnversion
3
$ cd ..
$ hg update 1
U *s/alpha (glob)
Fetching external item into '*s/externals'* (glob)
Checked out external at revision 1.
Checked out revision 2.
2 files updated, 0 files merged, 0 files removed, 0 files unresolved
$ hg id -n
1
$ cd s
$ svnversion
2
$ cd ..
Sticky subrepositorys, file changes
$ touch s/f1
$ cd s
$ svn add f1
A f1
$ cd ..
$ hg id -n
1+
$ cd s
$ svnversion
2M
$ cd ..
$ hg update tip
subrepository s diverged (local revision: 2, remote revision: 3)
(M)erge, keep (l)ocal or keep (r)emote? m
subrepository sources for s differ
use (l)ocal source (2) or (r)emote source (3)?
l
1 files updated, 0 files merged, 0 files removed, 0 files unresolved
$ hg id -n
2+
$ cd s
$ svnversion
2M
$ cd ..
$ hg update --clean tip
U *s/alpha (glob)
Fetching external item into '*s/externals'* (glob)
Checked out external at revision 1.
Checked out revision 3.
1 files updated, 0 files merged, 0 files removed, 0 files unresolved
Sticky subrepository, revision updates
$ hg id -n
2
$ cd s
$ svnversion
3
$ cd ..
$ cd s
$ svn update -qr 1
$ cd ..
$ hg update 1
subrepository s diverged (local revision: 3, remote revision: 2)
(M)erge, keep (l)ocal or keep (r)emote? m
subrepository sources for s differ (in checked out version)
use (l)ocal source (1) or (r)emote source (2)?
l
1 files updated, 0 files merged, 0 files removed, 0 files unresolved
$ hg id -n
1+
$ cd s
$ svnversion
1
$ cd ..
Sticky subrepository, file changes and revision updates
$ touch s/f1
$ cd s
$ svn add f1
A f1
$ svnversion
1M
$ cd ..
$ hg id -n
1+
$ hg update tip
subrepository s diverged (local revision: 3, remote revision: 3)
(M)erge, keep (l)ocal or keep (r)emote? m
subrepository sources for s differ
use (l)ocal source (1) or (r)emote source (3)?
l
1 files updated, 0 files merged, 0 files removed, 0 files unresolved
$ hg id -n
2+
$ cd s
$ svnversion
1M
$ cd ..
Sticky repository, update --clean
$ hg update --clean tip | grep -v 's[/\]externals[/\]other'
U *s/alpha (glob)
U *s (glob)
Fetching external item into '*s/externals'* (glob)
Checked out external at revision 1.
Checked out revision 3.
1 files updated, 0 files merged, 0 files removed, 0 files unresolved
$ hg id -n
2
$ cd s
$ svnversion
3
$ cd ..
Test subrepo already at intended revision:
$ cd s
$ svn update -qr 2
$ cd ..
$ hg update 1
subrepository s diverged (local revision: 3, remote revision: 2)
(M)erge, keep (l)ocal or keep (r)emote? m
1 files updated, 0 files merged, 0 files removed, 0 files unresolved
$ hg id -n
1+
$ cd s
$ svnversion
2
$ cd ..
Test case where subversion would fail to update the subrepo because there
are unknown directories being replaced by tracked ones (happens with rebase).
$ cd "$WCROOT/src"
$ mkdir dir
$ echo epsilon.py > dir/epsilon.py
$ svn add dir
A dir
A dir/epsilon.py (glob)
$ svn ci -m 'Add dir/epsilon.py'
Adding *dir (glob)
Adding *dir/epsilon.py (glob)
Transmitting file data .
Committed revision 6.
$ cd ../..
$ hg init rebaserepo
$ cd rebaserepo
$ svn co -r5 --quiet "$SVNREPOURL"/src s
$ echo "s = [svn] $SVNREPOURL/src" >> .hgsub
$ hg add .hgsub
$ hg ci -m addsub
$ echo a > a
$ hg ci -Am adda
adding a
$ hg up 0
0 files updated, 0 files merged, 1 files removed, 0 files unresolved
$ svn up -qr6 s
$ hg ci -m updatesub
created new head
$ echo pyc > s/dir/epsilon.pyc
$ hg up 1
D *s/dir (glob)
Fetching external item into '*s/externals'* (glob)
Checked out external at revision 1.
Checked out revision 5.
2 files updated, 0 files merged, 0 files removed, 0 files unresolved
$ hg up -q 2
Modify one of the externals to point to a different path so we can
test having obstructions when switching branches on checkout:
$ hg checkout tip
0 files updated, 0 files merged, 0 files removed, 0 files unresolved
$ echo "obstruct = [svn] $SVNREPOURL/externals" >> .hgsub
$ svn co -r5 --quiet "$SVNREPOURL"/externals obstruct
$ hg commit -m 'Start making obstructed working copy'
$ hg book other
$ hg co -r 'p1(tip)'
2 files updated, 0 files merged, 0 files removed, 0 files unresolved
$ echo "obstruct = [svn] $SVNREPOURL/src" >> .hgsub
$ svn co -r5 --quiet "$SVNREPOURL"/src obstruct
$ hg commit -m 'Other branch which will be obstructed'
created new head
Switching back to the head where we have another path mapped to the
same subrepo should work if the subrepo is clean.
$ hg co other
A *obstruct/other (glob)
Checked out revision 1.
2 files updated, 0 files merged, 0 files removed, 0 files unresolved
This is surprising, but is also correct based on the current code:
$ echo "updating should (maybe) fail" > obstruct/other
$ hg co tip
abort: uncommitted changes
(commit or update --clean to discard changes)
[255]
Point to a Subversion branch which has since been deleted and recreated
First, create that condition in the repository.
$ hg ci --subrepos -m cleanup | grep -v Updating
committing subrepository obstruct
Sending obstruct/other (glob)
Transmitting file data .
Committed revision 7.
At revision 7.
$ svn mkdir -m "baseline" $SVNREPOURL/trunk
Committed revision 8.
$ svn copy -m "initial branch" $SVNREPOURL/trunk $SVNREPOURL/branch
Committed revision 9.
$ svn co --quiet "$SVNREPOURL"/branch tempwc
$ cd tempwc
$ echo "something old" > somethingold
$ svn add somethingold
A somethingold
$ svn ci -m 'Something old'
Adding somethingold
Transmitting file data .
Committed revision 10.
$ svn rm -m "remove branch" $SVNREPOURL/branch
Committed revision 11.
$ svn copy -m "recreate branch" $SVNREPOURL/trunk $SVNREPOURL/branch
Committed revision 12.
$ svn up -q
$ echo "something new" > somethingnew
$ svn add somethingnew
A somethingnew
$ svn ci -m 'Something new'
Adding somethingnew
Transmitting file data .
Committed revision 13.
$ cd ..
$ rm -rf tempwc
$ svn co "$SVNREPOURL/branch"@10 recreated
A recreated/somethingold (glob)
Checked out revision 10.
$ echo "recreated = [svn] $SVNREPOURL/branch" >> .hgsub
$ hg ci -m addsub
$ cd recreated
$ svn up -q
$ cd ..
$ hg ci -m updatesub
$ hg up -r-2
D *recreated/somethingnew (glob)
A *recreated/somethingold (glob)
Checked out revision 10.
1 files updated, 0 files merged, 0 files removed, 0 files unresolved
$ test -f recreated/somethingold
Test archive
$ hg archive -S ../archive-all --debug
archiving: 0/2 files (0.00%)
archiving: .hgsub 1/2 files (50.00%)
archiving: .hgsubstate 2/2 files (100.00%)
archiving (obstruct): 0/1 files (0.00%)
archiving (obstruct): 1/1 files (100.00%)
archiving (recreated): 0/1 files (0.00%)
archiving (recreated): 1/1 files (100.00%)
archiving (s): 0/2 files (0.00%)
archiving (s): 1/2 files (50.00%)
archiving (s): 2/2 files (100.00%)
$ hg archive -S ../archive-exclude --debug -X **old
archiving: 0/2 files (0.00%)
archiving: .hgsub 1/2 files (50.00%)
archiving: .hgsubstate 2/2 files (100.00%)
archiving (obstruct): 0/1 files (0.00%)
archiving (obstruct): 1/1 files (100.00%)
archiving (recreated): 0 files
archiving (s): 0/2 files (0.00%)
archiving (s): 1/2 files (50.00%)
archiving (s): 2/2 files (100.00%)
$ find ../archive-exclude | sort
../archive-exclude
../archive-exclude/.hg_archival.txt
../archive-exclude/.hgsub
../archive-exclude/.hgsubstate
../archive-exclude/obstruct
../archive-exclude/obstruct/other
../archive-exclude/s
../archive-exclude/s/alpha
../archive-exclude/s/dir
../archive-exclude/s/dir/epsilon.py
Test forgetting files, not implemented in svn subrepo, used to
traceback
#if no-windows
$ hg forget 'notafile*'
notafile*: No such file or directory
[1]
#else
$ hg forget 'notafile'
notafile: * (glob)
[1]
#endif
Test a subrepo referencing a just moved svn path. Last commit rev will
be different from the revision, and the path will be different as
well.
$ cd "$WCROOT"
$ svn up > /dev/null
$ mkdir trunk/subdir branches
$ echo a > trunk/subdir/a
$ svn add trunk/subdir branches
A trunk/subdir (glob)
A trunk/subdir/a (glob)
A branches
$ svn ci -m addsubdir
Adding branches
Adding trunk/subdir (glob)
Adding trunk/subdir/a (glob)
Transmitting file data .
Committed revision 14.
$ svn cp -m branchtrunk $SVNREPOURL/trunk $SVNREPOURL/branches/somebranch
Committed revision 15.
$ cd ..
$ hg init repo2
$ cd repo2
$ svn co $SVNREPOURL/branches/somebranch/subdir
A subdir/a (glob)
Checked out revision 15.
$ echo "subdir = [svn] $SVNREPOURL/branches/somebranch/subdir" > .hgsub
$ hg add .hgsub
$ hg ci -m addsub
$ hg up null
0 files updated, 0 files merged, 2 files removed, 0 files unresolved
$ hg up
A *subdir/a (glob)
Checked out revision 15.
2 files updated, 0 files merged, 0 files removed, 0 files unresolved
$ cd ..