$ branchcache=.hg/cache/branchheads
$ hg init t
$ cd t
$ hg branches
$ echo foo > a
$ hg add a
$ hg ci -m "initial"
$ hg branch foo
marked working directory as branch foo
$ hg branch
foo
$ hg ci -m "add branch name"
$ hg branch bar
marked working directory as branch bar
$ hg ci -m "change branch name"
Branch shadowing:
$ hg branch default
abort: a branch of the same name already exists (use 'hg update' to switch to it)
[255]
$ hg branch -f default
marked working directory as branch default
$ hg ci -m "clear branch name"
created new head
There should be only one default branch head
$ hg heads .
changeset: 3:9d567d0b51f9
tag: tip
user: test
date: Thu Jan 01 00:00:00 1970 +0000
summary: clear branch name
$ hg co foo
0 files updated, 0 files merged, 0 files removed, 0 files unresolved
$ hg branch
foo
$ echo bleah > a
$ hg ci -m "modify a branch"
$ hg merge default
0 files updated, 0 files merged, 0 files removed, 0 files unresolved
(branch merge, don't forget to commit)
$ hg branch
foo
$ hg ci -m "merge"
$ hg log
changeset: 5:dc140083783b
branch: foo
tag: tip
parent: 4:98d14f698afe
parent: 3:9d567d0b51f9
user: test
date: Thu Jan 01 00:00:00 1970 +0000
summary: merge
changeset: 4:98d14f698afe
branch: foo
parent: 1:0079f24813e2
user: test
date: Thu Jan 01 00:00:00 1970 +0000
summary: modify a branch
changeset: 3:9d567d0b51f9
user: test
date: Thu Jan 01 00:00:00 1970 +0000
summary: clear branch name
changeset: 2:ed2bbf4e0102
branch: bar
user: test
date: Thu Jan 01 00:00:00 1970 +0000
summary: change branch name
changeset: 1:0079f24813e2
branch: foo
user: test
date: Thu Jan 01 00:00:00 1970 +0000
summary: add branch name
changeset: 0:db01e8ea3388
user: test
date: Thu Jan 01 00:00:00 1970 +0000
summary: initial
$ hg branches
foo 5:dc140083783b
default 3:9d567d0b51f9 (inactive)
bar 2:ed2bbf4e0102 (inactive)
$ hg branches -q
foo
default
bar
Test for invalid branch cache:
$ hg rollback
repository tip rolled back to revision 4 (undo commit)
working directory now based on revisions 4 and 3
$ cp $branchcache .hg/bc-invalid
$ hg log -r foo
changeset: 4:98d14f698afe
branch: foo
tag: tip
parent: 1:0079f24813e2
user: test
date: Thu Jan 01 00:00:00 1970 +0000
summary: modify a branch
$ cp .hg/bc-invalid $branchcache
$ hg --debug log -r foo
invalidating branch cache (tip differs)
changeset: 4:98d14f698afeaff8cb612dcf215ce95e639effc3
branch: foo
tag: tip
parent: 1:0079f24813e2b73a891577c243684c5066347bc8
parent: -1:0000000000000000000000000000000000000000
manifest: 4:d01b250baaa05909152f7ae07d7a649deea0df9a
user: test
date: Thu Jan 01 00:00:00 1970 +0000
files: a
extra: branch=foo
description:
modify a branch
$ rm $branchcache
$ echo corrupted > $branchcache
$ hg log -qr foo
4:98d14f698afe
$ cat $branchcache
98d14f698afeaff8cb612dcf215ce95e639effc3 4
9d567d0b51f9e2068b054e1948e1a927f99b5874 default
98d14f698afeaff8cb612dcf215ce95e639effc3 foo
ed2bbf4e01029020711be82ca905283e883f0e11 bar
Push should update the branch cache:
$ hg init ../target
Pushing just rev 0:
$ hg push -qr 0 ../target
$ cat ../target/$branchcache
db01e8ea3388fd3c7c94e1436ea2bd6a53d581c5 0
db01e8ea3388fd3c7c94e1436ea2bd6a53d581c5 default
Pushing everything:
$ hg push -qf ../target
$ cat ../target/$branchcache
98d14f698afeaff8cb612dcf215ce95e639effc3 4
9d567d0b51f9e2068b054e1948e1a927f99b5874 default
98d14f698afeaff8cb612dcf215ce95e639effc3 foo
ed2bbf4e01029020711be82ca905283e883f0e11 bar
Update with no arguments: tipmost revision of the current branch:
$ hg up -q -C 0
$ hg up -q
$ hg id
9d567d0b51f9
$ hg up -q 1
$ hg up -q
$ hg id
98d14f698afe (foo) tip
$ hg branch foobar
marked working directory as branch foobar
$ hg up
abort: branch foobar not found
[255]
Fastforward merge:
$ hg branch ff
marked working directory as branch ff
$ echo ff > ff
$ hg ci -Am'fast forward'
adding ff
$ hg up foo
0 files updated, 0 files merged, 1 files removed, 0 files unresolved
$ hg merge ff
1 files updated, 0 files merged, 0 files removed, 0 files unresolved
(branch merge, don't forget to commit)
$ hg branch
foo
$ hg commit -m'Merge ff into foo'
$ hg parents
changeset: 6:917eb54e1b4b
branch: foo
tag: tip
parent: 4:98d14f698afe
parent: 5:6683a60370cb
user: test
date: Thu Jan 01 00:00:00 1970 +0000
summary: Merge ff into foo
$ hg manifest
a
ff
Test merging, add 3 default heads and one test head:
$ cd ..
$ hg init merges
$ cd merges
$ echo a > a
$ hg ci -Ama
adding a
$ echo b > b
$ hg ci -Amb
adding b
$ hg up 0
0 files updated, 0 files merged, 1 files removed, 0 files unresolved
$ echo c > c
$ hg ci -Amc
adding c
created new head
$ hg up 0
0 files updated, 0 files merged, 1 files removed, 0 files unresolved
$ echo d > d
$ hg ci -Amd
adding d
created new head
$ hg up 0
0 files updated, 0 files merged, 1 files removed, 0 files unresolved
$ hg branch test
marked working directory as branch test
$ echo e >> e
$ hg ci -Ame
adding e
$ hg log
changeset: 4:3a1e01ed1df4
branch: test
tag: tip
parent: 0:cb9a9f314b8b
user: test
date: Thu Jan 01 00:00:00 1970 +0000
summary: e
changeset: 3:980f7dc84c29
parent: 0:cb9a9f314b8b
user: test
date: Thu Jan 01 00:00:00 1970 +0000
summary: d
changeset: 2:d36c0562f908
parent: 0:cb9a9f314b8b
user: test
date: Thu Jan 01 00:00:00 1970 +0000
summary: c
changeset: 1:d2ae7f538514
user: test
date: Thu Jan 01 00:00:00 1970 +0000
summary: b
changeset: 0:cb9a9f314b8b
user: test
date: Thu Jan 01 00:00:00 1970 +0000
summary: a
Implicit merge with test branch as parent:
$ hg merge
abort: branch 'test' has one head - please merge with an explicit rev
(run 'hg heads' to see all heads)
[255]
$ hg up -C default
1 files updated, 0 files merged, 1 files removed, 0 files unresolved
Implicit merge with default branch as parent:
$ hg merge
abort: branch 'default' has 3 heads - please merge with an explicit rev
(run 'hg heads .' to see heads)
[255]
3 branch heads, explicit merge required:
$ hg merge 2
1 files updated, 0 files merged, 0 files removed, 0 files unresolved
(branch merge, don't forget to commit)
$ hg ci -m merge
2 branch heads, implicit merge works:
$ hg merge
1 files updated, 0 files merged, 0 files removed, 0 files unresolved
(branch merge, don't forget to commit)