cext: move util.h to cext tree
Since util.h isn't useful in plain C module, it should be placed in CPython
extension directory.
$ cat >> $HGRCPATH << EOF
> [extensions]
> show =
> EOF
$ hg init repo0
$ cd repo0
Command works on an empty repo
$ hg show work
Single draft changeset shown
$ echo 0 > foo
$ hg -q commit -A -m 'commit 0'
$ hg show work
@ 9f171 commit 0
Even when it isn't the wdir
$ hg -q up null
$ hg show work
o 9f171 commit 0
Single changeset is still there when public because it is a head
$ hg phase --public -r 0
$ hg show work
o 9f171 commit 0
A draft child will show both it and public parent
$ hg -q up 0
$ echo 1 > foo
$ hg commit -m 'commit 1'
$ hg show work
@ 181cc commit 1
o 9f171 commit 0
Multiple draft children will be shown
$ echo 2 > foo
$ hg commit -m 'commit 2'
$ hg show work
@ 128c8 commit 2
o 181cc commit 1
o 9f171 commit 0
Bumping first draft changeset to public will hide its parent
$ hg phase --public -r 1
$ hg show work
@ 128c8 commit 2
o 181cc commit 1
|
~
Multiple DAG heads will be shown
$ hg -q up -r 1
$ echo 3 > foo
$ hg commit -m 'commit 3'
created new head
$ hg show work
@ f0abc commit 3
| o 128c8 commit 2
|/
o 181cc commit 1
|
~
Even when wdir is something else
$ hg -q up null
$ hg show work
o f0abc commit 3
| o 128c8 commit 2
|/
o 181cc commit 1
|
~
Draft child shows public head (multiple heads)
$ hg -q up 0
$ echo 4 > foo
$ hg commit -m 'commit 4'
created new head
$ hg show work
@ 668ca commit 4
| o f0abc commit 3
| | o 128c8 commit 2
| |/
| o 181cc commit 1
|/
o 9f171 commit 0
$ cd ..
Branch name appears in output
$ hg init branches
$ cd branches
$ echo 0 > foo
$ hg -q commit -A -m 'commit 0'
$ echo 1 > foo
$ hg commit -m 'commit 1'
$ echo 2 > foo
$ hg commit -m 'commit 2'
$ hg phase --public -r .
$ hg -q up -r 1
$ hg branch mybranch
marked working directory as branch mybranch
(branches are permanent and global, did you want a bookmark?)
$ echo 3 > foo
$ hg commit -m 'commit 3'
$ echo 4 > foo
$ hg commit -m 'commit 4'
$ hg show work
@ f8dd3 (mybranch) commit 4
o 90cfc (mybranch) commit 3
| o 128c8 commit 2
|/
o 181cc commit 1
|
~
$ cd ..
Bookmark name appears in output
$ hg init bookmarks
$ cd bookmarks
$ echo 0 > foo
$ hg -q commit -A -m 'commit 0'
$ echo 1 > foo
$ hg commit -m 'commit 1'
$ echo 2 > foo
$ hg commit -m 'commit 2'
$ hg phase --public -r .
$ hg bookmark @
$ hg -q up -r 1
$ echo 3 > foo
$ hg commit -m 'commit 3'
created new head
$ echo 4 > foo
$ hg commit -m 'commit 4'
$ hg bookmark mybook
$ hg show work
@ cac82 (mybook) commit 4
o f0abc commit 3
| o 128c8 (@) commit 2
|/
o 181cc commit 1
|
~
$ cd ..