localrepo: add branchtip() method for faster single-branch lookups
For the PyPy repo with 744 branches and 843 branch heads, this brings
hg log -r default over NFS from:
CallCount Recursive Total(ms) Inline(ms) module:lineno(function)
3249 0 1.3222 1.3222 <open>
3244 0 0.6211 0.6211 <method 'close' of 'file' objects>
3243 0 0.0800 0.0800 <method 'read' of 'file' objects>
3241 0 0.0660 0.0660 <method 'seek' of 'file' objects>
3905 0 0.0476 0.0476 <zlib.decompress>
3281 0 2.6756 0.0472 mercurial.changelog:182(read)
+3281 0 2.5256 0.0453 +mercurial.revlog:881(revision)
+3276 0 0.0389 0.0196 +mercurial.changelog:28(decodeextra)
+6562 0 0.0123 0.0123 +<method 'split' of 'str' objects>
+6562 0 0.0408 0.0073 +mercurial.encoding:61(tolocal)
+3281 0 0.0054 0.0054 +<method 'index' of 'str' objects>
3241 0 2.2464 0.0456 mercurial.revlog:818(_loadchunk)
+3241 0 0.6205 0.6205 +<method 'close' of 'file' objects>
+3241 0 0.0765 0.0765 +<method 'read' of 'file' objects>
+3241 0 0.0660 0.0660 +<method 'seek' of 'file' objects>
+3241 0 1.4209 0.0135 +mercurial.store:374(__call__)
+3241 0 0.0122 0.0107 +mercurial.revlog:810(_addchunk)
3281 0 2.5256 0.0453 mercurial.revlog:881(revision)
+3280 0 0.0175 0.0175 +mercurial.revlog:305(rev)
+3281 0 2.2819 0.0119 +mercurial.revlog:847(_chunkraw)
+3281 0 0.0603 0.0083 +mercurial.revlog:945(_checkhash)
+3281 0 0.0051 0.0051 +mercurial.revlog:349(flags)
+3281 0 0.0040 0.0040 +<mercurial.mpatch.patches>
13682 0 0.0479 0.0248 <method 'decode' of 'str' objects>
+7418 0 0.0228 0.0076 +encodings.utf_8:15(decode)
+1 0 0.0003 0.0000 +encodings:71(search_function)
3248 0 1.3995 0.0246 mercurial.scmutil:218(__call__)
+3248 0 1.3222 1.3222 +<open>
+3248 0 0.0235 0.0184 +os.path:80(split)
+3248 0 0.0084 0.0068 +mercurial.scmutil:92(__call__)
Time: real 2.750 secs (user 0.680+0.000 sys 0.360+0.000)
down to:
CallCount Recursive Total(ms) Inline(ms) module:lineno(function)
55 31 0.0197 0.0163 <__import__>
+1 0 0.0006 0.0002 +mercurial.context:8(<module>)
+1 0 0.0042 0.0001 +mercurial.revlog:12(<module>)
+1 0 0.0002 0.0001 +mercurial.match:8(<module>)
+1 0 0.0003 0.0001 +mercurial.dirstate:7(<module>)
+1 0 0.0057 0.0001 +mercurial.changelog:8(<module>)
1 0 0.0117 0.0032 mercurial.localrepo:525(_readbranchcache)
+844 0 0.0015 0.0015 +<binascii.unhexlify>
+845 0 0.0010 0.0010 +<method 'split' of 'str' objects>
+843 0 0.0045 0.0009 +mercurial.encoding:61(tolocal)
+843 0 0.0004 0.0004 +<method 'setdefault' of 'dict' objects>
+1 0 0.0003 0.0003 +<method 'close' of 'file' objects>
3 0 0.0029 0.0029 <method 'read' of 'file' objects>
9 0 0.0018 0.0018 <open>
990 0 0.0017 0.0017 <binascii.unhexlify>
53 0 0.0016 0.0016 mercurial.demandimport:43(__init__)
862 0 0.0015 0.0015 <_codecs.utf_8_decode>
862 0 0.0037 0.0014 <method 'decode' of 'str' objects>
+862 0 0.0023 0.0008 +encodings.utf_8:15(decode)
981 0 0.0011 0.0011 <method 'split' of 'str' objects>
861 0 0.0046 0.0009 mercurial.encoding:61(tolocal)
+861 0 0.0037 0.0014 +<method 'decode' of 'str' objects>
862 0 0.0023 0.0008 encodings.utf_8:15(decode)
+862 0 0.0015 0.0015 +<_codecs.utf_8_decode>
4 0 0.0008 0.0008 <method 'close' of 'file' objects>
179 154 0.0202 0.0004 mercurial.demandimport:83(__getattribute__)
+36 11 0.0199 0.0003 +mercurial.demandimport:55(_load)
+72 0 0.0001 0.0001 +mercurial.demandimport:83(__getattribute__)
+36 0 0.0000 0.0000 +<getattr>
1 0 0.0015 0.0004 mercurial.tags:148(_readtagcache)
Time: real 0.060 secs (user 0.030+0.000 sys 0.010+0.000)
Prepare repo a:
$ hg init a
$ cd a
$ echo a > a
$ hg add a
$ hg commit -m test
$ echo first line > b
$ hg add b
Create a non-inlined filelog:
$ python -c 'file("data1", "wb").write("".join("%s\n" % x for x in range(10000)))'
$ for j in 0 1 2 3 4 5 6 7 8 9; do
> cat data1 >> b
> hg commit -m test
> done
List files in store/data (should show a 'b.d'):
$ for i in .hg/store/data/*; do
> echo $i
> done
.hg/store/data/a.i
.hg/store/data/b.d
.hg/store/data/b.i
Default operation:
$ hg clone . ../b
updating to branch default
2 files updated, 0 files merged, 0 files removed, 0 files unresolved
$ cd ../b
$ cat a
a
$ hg verify
checking changesets
checking manifests
crosschecking files in changesets and manifests
checking files
2 files, 11 changesets, 11 total revisions
Invalid dest '' must abort:
$ hg clone . ''
abort: * (glob)
[255]
No update, with debug option:
$ hg --debug clone -U . ../c
linked 8 files
$ cd ../c
$ cat a 2>/dev/null || echo "a not present"
a not present
$ hg verify
checking changesets
checking manifests
crosschecking files in changesets and manifests
checking files
2 files, 11 changesets, 11 total revisions
Default destination:
$ mkdir ../d
$ cd ../d
$ hg clone ../a
destination directory: a
updating to branch default
2 files updated, 0 files merged, 0 files removed, 0 files unresolved
$ cd a
$ hg cat a
a
$ cd ../..
Check that we drop the 'file:' from the path before writing the .hgrc:
$ hg clone file:a e
updating to branch default
2 files updated, 0 files merged, 0 files removed, 0 files unresolved
$ grep 'file:' e/.hg/hgrc
[1]
Check that path aliases are expanded:
$ hg clone -q -U --config 'paths.foobar=a#0' foobar f
$ hg -R f showconfig paths.default
$TESTTMP/a#0 (glob)
Use --pull:
$ hg clone --pull a g
requesting all changes
adding changesets
adding manifests
adding file changes
added 11 changesets with 11 changes to 2 files
updating to branch default
2 files updated, 0 files merged, 0 files removed, 0 files unresolved
$ hg -R g verify
checking changesets
checking manifests
crosschecking files in changesets and manifests
checking files
2 files, 11 changesets, 11 total revisions
Invalid dest '' with --pull must abort (issue2528):
$ hg clone --pull a ''
abort: * (glob)
[255]
Clone to '.':
$ mkdir h
$ cd h
$ hg clone ../a .
updating to branch default
2 files updated, 0 files merged, 0 files removed, 0 files unresolved
$ cd ..
*** Tests for option -u ***
Adding some more history to repo a:
$ cd a
$ hg tag ref1
$ echo the quick brown fox >a
$ hg ci -m "hacked default"
$ hg up ref1
1 files updated, 0 files merged, 1 files removed, 0 files unresolved
$ hg branch stable
marked working directory as branch stable
(branches are permanent and global, did you want a bookmark?)
$ echo some text >a
$ hg ci -m "starting branch stable"
$ hg tag ref2
$ echo some more text >a
$ hg ci -m "another change for branch stable"
$ hg up ref2
1 files updated, 0 files merged, 1 files removed, 0 files unresolved
$ hg parents
changeset: 13:e8ece76546a6
branch: stable
tag: ref2
parent: 10:a7949464abda
user: test
date: Thu Jan 01 00:00:00 1970 +0000
summary: starting branch stable
Repo a has two heads:
$ hg heads
changeset: 15:0aae7cf88f0d
branch: stable
tag: tip
user: test
date: Thu Jan 01 00:00:00 1970 +0000
summary: another change for branch stable
changeset: 12:f21241060d6a
user: test
date: Thu Jan 01 00:00:00 1970 +0000
summary: hacked default
$ cd ..
Testing --noupdate with --updaterev (must abort):
$ hg clone --noupdate --updaterev 1 a ua
abort: cannot specify both --noupdate and --updaterev
[255]
Testing clone -u:
$ hg clone -u . a ua
updating to branch stable
2 files updated, 0 files merged, 0 files removed, 0 files unresolved
Repo ua has both heads:
$ hg -R ua heads
changeset: 15:0aae7cf88f0d
branch: stable
tag: tip
user: test
date: Thu Jan 01 00:00:00 1970 +0000
summary: another change for branch stable
changeset: 12:f21241060d6a
user: test
date: Thu Jan 01 00:00:00 1970 +0000
summary: hacked default
Same revision checked out in repo a and ua:
$ hg -R a parents --template "{node|short}\n"
e8ece76546a6
$ hg -R ua parents --template "{node|short}\n"
e8ece76546a6
$ rm -r ua
Testing clone --pull -u:
$ hg clone --pull -u . a ua
requesting all changes
adding changesets
adding manifests
adding file changes
added 16 changesets with 16 changes to 3 files (+1 heads)
updating to branch stable
2 files updated, 0 files merged, 0 files removed, 0 files unresolved
Repo ua has both heads:
$ hg -R ua heads
changeset: 15:0aae7cf88f0d
branch: stable
tag: tip
user: test
date: Thu Jan 01 00:00:00 1970 +0000
summary: another change for branch stable
changeset: 12:f21241060d6a
user: test
date: Thu Jan 01 00:00:00 1970 +0000
summary: hacked default
Same revision checked out in repo a and ua:
$ hg -R a parents --template "{node|short}\n"
e8ece76546a6
$ hg -R ua parents --template "{node|short}\n"
e8ece76546a6
$ rm -r ua
Testing clone -u <branch>:
$ hg clone -u stable a ua
updating to branch stable
3 files updated, 0 files merged, 0 files removed, 0 files unresolved
Repo ua has both heads:
$ hg -R ua heads
changeset: 15:0aae7cf88f0d
branch: stable
tag: tip
user: test
date: Thu Jan 01 00:00:00 1970 +0000
summary: another change for branch stable
changeset: 12:f21241060d6a
user: test
date: Thu Jan 01 00:00:00 1970 +0000
summary: hacked default
Branch 'stable' is checked out:
$ hg -R ua parents
changeset: 15:0aae7cf88f0d
branch: stable
tag: tip
user: test
date: Thu Jan 01 00:00:00 1970 +0000
summary: another change for branch stable
$ rm -r ua
Testing default checkout:
$ hg clone a ua
updating to branch default
3 files updated, 0 files merged, 0 files removed, 0 files unresolved
Repo ua has both heads:
$ hg -R ua heads
changeset: 15:0aae7cf88f0d
branch: stable
tag: tip
user: test
date: Thu Jan 01 00:00:00 1970 +0000
summary: another change for branch stable
changeset: 12:f21241060d6a
user: test
date: Thu Jan 01 00:00:00 1970 +0000
summary: hacked default
Branch 'default' is checked out:
$ hg -R ua parents
changeset: 12:f21241060d6a
user: test
date: Thu Jan 01 00:00:00 1970 +0000
summary: hacked default
$ rm -r ua
Testing #<branch>:
$ hg clone -u . a#stable ua
adding changesets
adding manifests
adding file changes
added 14 changesets with 14 changes to 3 files
updating to branch stable
2 files updated, 0 files merged, 0 files removed, 0 files unresolved
Repo ua has branch 'stable' and 'default' (was changed in fd511e9eeea6):
$ hg -R ua heads
changeset: 13:0aae7cf88f0d
branch: stable
tag: tip
user: test
date: Thu Jan 01 00:00:00 1970 +0000
summary: another change for branch stable
changeset: 10:a7949464abda
user: test
date: Thu Jan 01 00:00:00 1970 +0000
summary: test
Same revision checked out in repo a and ua:
$ hg -R a parents --template "{node|short}\n"
e8ece76546a6
$ hg -R ua parents --template "{node|short}\n"
e8ece76546a6
$ rm -r ua
Testing -u -r <branch>:
$ hg clone -u . -r stable a ua
adding changesets
adding manifests
adding file changes
added 14 changesets with 14 changes to 3 files
updating to branch stable
2 files updated, 0 files merged, 0 files removed, 0 files unresolved
Repo ua has branch 'stable' and 'default' (was changed in fd511e9eeea6):
$ hg -R ua heads
changeset: 13:0aae7cf88f0d
branch: stable
tag: tip
user: test
date: Thu Jan 01 00:00:00 1970 +0000
summary: another change for branch stable
changeset: 10:a7949464abda
user: test
date: Thu Jan 01 00:00:00 1970 +0000
summary: test
Same revision checked out in repo a and ua:
$ hg -R a parents --template "{node|short}\n"
e8ece76546a6
$ hg -R ua parents --template "{node|short}\n"
e8ece76546a6
$ rm -r ua
Testing -r <branch>:
$ hg clone -r stable a ua
adding changesets
adding manifests
adding file changes
added 14 changesets with 14 changes to 3 files
updating to branch stable
3 files updated, 0 files merged, 0 files removed, 0 files unresolved
Repo ua has branch 'stable' and 'default' (was changed in fd511e9eeea6):
$ hg -R ua heads
changeset: 13:0aae7cf88f0d
branch: stable
tag: tip
user: test
date: Thu Jan 01 00:00:00 1970 +0000
summary: another change for branch stable
changeset: 10:a7949464abda
user: test
date: Thu Jan 01 00:00:00 1970 +0000
summary: test
Branch 'stable' is checked out:
$ hg -R ua parents
changeset: 13:0aae7cf88f0d
branch: stable
tag: tip
user: test
date: Thu Jan 01 00:00:00 1970 +0000
summary: another change for branch stable
$ rm -r ua
Issue2267: Error in 1.6 hg.py: TypeError: 'NoneType' object is not
iterable in addbranchrevs()
$ cat <<EOF > simpleclone.py
> from mercurial import ui, hg
> myui = ui.ui()
> repo = hg.repository(myui, 'a')
> hg.clone(myui, {}, repo, dest="ua")
> EOF
$ python simpleclone.py
updating to branch default
3 files updated, 0 files merged, 0 files removed, 0 files unresolved
$ rm -r ua
$ cat <<EOF > branchclone.py
> from mercurial import ui, hg
> myui = ui.ui()
> repo = hg.repository(myui, 'a')
> hg.clone(myui, {}, repo, dest="ua", branch=["stable",])
> EOF
$ python branchclone.py
adding changesets
adding manifests
adding file changes
added 14 changesets with 14 changes to 3 files
updating to branch stable
3 files updated, 0 files merged, 0 files removed, 0 files unresolved
$ rm -r ua