hgweb: use patch.diffhunks in webutil.diffs to simplify the algorithm
Function patch.diffhunks yields items for a "block" (i.e. a file) as a whole
so take advantage of this to simplify the algorithm and avoid parsing diff
lines to determine whether we're starting a new "block" or not. Thus we drop
to external block counter and rely on diffhunks iterations instead.
We also take advantage of the fact that patch.diffhunks() yields *lines* of
hunks (instead of a string) to avoid building a list that is ''.join-ed into a
string that is then split.
As lines in 'header' returned by patch.diffhunks() have no trailing new line,
we need to insert it ourselves to match template expectations.
$ cat >> $HGRCPATH <<EOF
> [extensions]
> rebase=
> mq=
>
> [phases]
> publish=False
>
> [alias]
> tglog = log -G --template "{rev}: '{desc}' {branches}\n"
> tglogp = log -G --template "{rev}:{phase} '{desc}' {branches}\n"
> EOF
Create repo a:
$ hg init a
$ cd a
$ hg unbundle "$TESTDIR/bundles/rebase.hg"
adding changesets
adding manifests
adding file changes
added 8 changesets with 7 changes to 7 files (+2 heads)
(run 'hg heads' to see heads, 'hg merge' to merge)
$ hg up tip
3 files updated, 0 files merged, 0 files removed, 0 files unresolved
$ hg tglog
@ 7: 'H'
|
| o 6: 'G'
|/|
o | 5: 'F'
| |
| o 4: 'E'
|/
| o 3: 'D'
| |
| o 2: 'C'
| |
| o 1: 'B'
|/
o 0: 'A'
$ cd ..
Rebasing B onto H and collapsing changesets with different phases:
$ hg clone -q -u 3 a a1
$ cd a1
$ hg phase --force --secret 3
$ cat > $TESTTMP/editor.sh <<EOF
> echo "==== before editing"
> cat \$1
> echo "===="
> echo "edited manually" >> \$1
> EOF
$ HGEDITOR="sh $TESTTMP/editor.sh" hg rebase --collapse --keepbranches -e --dest 7
rebasing 1:42ccdea3bb16 "B"
rebasing 2:5fddd98957c8 "C"
rebasing 3:32af7686d403 "D"
==== before editing
Collapsed revision
* B
* C
* D
HG: Enter commit message. Lines beginning with 'HG:' are removed.
HG: Leave message empty to abort commit.
HG: --
HG: user: Nicolas Dumazet <nicdumz.commits@gmail.com>
HG: branch 'default'
HG: added B
HG: added C
HG: added D
====
saved backup bundle to $TESTTMP/a1/.hg/strip-backup/42ccdea3bb16-3cb021d3-backup.hg (glob)
$ hg tglogp
@ 5:secret 'Collapsed revision
| * B
| * C
| * D
|
|
| edited manually'
o 4:draft 'H'
|
| o 3:draft 'G'
|/|
o | 2:draft 'F'
| |
| o 1:draft 'E'
|/
o 0:draft 'A'
$ hg manifest --rev tip
A
B
C
D
F
H
$ cd ..
Rebasing E onto H:
$ hg clone -q -u . a a2
$ cd a2
$ hg phase --force --secret 6
$ hg rebase --source 4 --collapse --dest 7
rebasing 4:9520eea781bc "E"
rebasing 6:eea13746799a "G"
saved backup bundle to $TESTTMP/a2/.hg/strip-backup/9520eea781bc-fcd8edd4-backup.hg (glob)
$ hg tglog
o 6: 'Collapsed revision
| * E
| * G'
@ 5: 'H'
|
o 4: 'F'
|
| o 3: 'D'
| |
| o 2: 'C'
| |
| o 1: 'B'
|/
o 0: 'A'
$ hg manifest --rev tip
A
E
F
H
$ cd ..
Rebasing G onto H with custom message:
$ hg clone -q -u . a a3
$ cd a3
$ hg rebase --base 6 -m 'custom message'
abort: message can only be specified with collapse
[255]
$ cat > $TESTTMP/checkeditform.sh <<EOF
> env | grep HGEDITFORM
> true
> EOF
$ HGEDITOR="sh $TESTTMP/checkeditform.sh" hg rebase --source 4 --collapse -m 'custom message' -e --dest 7
rebasing 4:9520eea781bc "E"
rebasing 6:eea13746799a "G"
HGEDITFORM=rebase.collapse
saved backup bundle to $TESTTMP/a3/.hg/strip-backup/9520eea781bc-fcd8edd4-backup.hg (glob)
$ hg tglog
o 6: 'custom message'
|
@ 5: 'H'
|
o 4: 'F'
|
| o 3: 'D'
| |
| o 2: 'C'
| |
| o 1: 'B'
|/
o 0: 'A'
$ hg manifest --rev tip
A
E
F
H
$ cd ..
Create repo b:
$ hg init b
$ cd b
$ echo A > A
$ hg ci -Am A
adding A
$ echo B > B
$ hg ci -Am B
adding B
$ hg up -q 0
$ echo C > C
$ hg ci -Am C
adding C
created new head
$ hg merge
1 files updated, 0 files merged, 0 files removed, 0 files unresolved
(branch merge, don't forget to commit)
$ echo D > D
$ hg ci -Am D
adding D
$ hg up -q 1
$ echo E > E
$ hg ci -Am E
adding E
created new head
$ echo F > F
$ hg ci -Am F
adding F
$ hg merge
2 files updated, 0 files merged, 0 files removed, 0 files unresolved
(branch merge, don't forget to commit)
$ hg ci -m G
$ hg up -q 0
$ echo H > H
$ hg ci -Am H
adding H
created new head
$ hg tglog
@ 7: 'H'
|
| o 6: 'G'
| |\
| | o 5: 'F'
| | |
| | o 4: 'E'
| | |
| o | 3: 'D'
| |\|
| o | 2: 'C'
|/ /
| o 1: 'B'
|/
o 0: 'A'
$ cd ..
Rebase and collapse - more than one external (fail):
$ hg clone -q -u . b b1
$ cd b1
$ hg rebase -s 2 --dest 7 --collapse
abort: unable to collapse on top of 7, there is more than one external parent: 1, 5
[255]
Rebase and collapse - E onto H:
$ hg rebase -s 4 --dest 7 --collapse # root (4) is not a merge
rebasing 4:8a5212ebc852 "E"
rebasing 5:7f219660301f "F"
rebasing 6:c772a8b2dc17 "G"
saved backup bundle to $TESTTMP/b1/.hg/strip-backup/8a5212ebc852-75046b61-backup.hg (glob)
$ hg tglog
o 5: 'Collapsed revision
|\ * E
| | * F
| | * G'
| @ 4: 'H'
| |
o | 3: 'D'
|\ \
| o | 2: 'C'
| |/
o / 1: 'B'
|/
o 0: 'A'
$ hg manifest --rev tip
A
C
D
E
F
H
$ cd ..
Test that branchheads cache is updated correctly when doing a strip in which
the parent of the ancestor node to be stripped does not become a head and also,
the parent of a node that is a child of the node stripped becomes a head (node
3). The code is now much simpler and we could just test a simpler scenario
We keep it the test this way in case new complexity is injected.
$ hg clone -q -u . b b2
$ cd b2
$ hg heads --template="{rev}:{node} {branch}\n"
7:c65502d4178782309ce0574c5ae6ee9485a9bafa default
6:c772a8b2dc17629cec88a19d09c926c4814b12c7 default
$ cat $TESTTMP/b2/.hg/cache/branch2-served
c65502d4178782309ce0574c5ae6ee9485a9bafa 7
c772a8b2dc17629cec88a19d09c926c4814b12c7 o default
c65502d4178782309ce0574c5ae6ee9485a9bafa o default
$ hg strip 4
saved backup bundle to $TESTTMP/b2/.hg/strip-backup/8a5212ebc852-75046b61-backup.hg (glob)
$ cat $TESTTMP/b2/.hg/cache/branch2-served
c65502d4178782309ce0574c5ae6ee9485a9bafa 4
2870ad076e541e714f3c2bc32826b5c6a6e5b040 o default
c65502d4178782309ce0574c5ae6ee9485a9bafa o default
$ hg heads --template="{rev}:{node} {branch}\n"
4:c65502d4178782309ce0574c5ae6ee9485a9bafa default
3:2870ad076e541e714f3c2bc32826b5c6a6e5b040 default
$ cd ..
Create repo c:
$ hg init c
$ cd c
$ echo A > A
$ hg ci -Am A
adding A
$ echo B > B
$ hg ci -Am B
adding B
$ hg up -q 0
$ echo C > C
$ hg ci -Am C
adding C
created new head
$ hg merge
1 files updated, 0 files merged, 0 files removed, 0 files unresolved
(branch merge, don't forget to commit)
$ echo D > D
$ hg ci -Am D
adding D
$ hg up -q 1
$ echo E > E
$ hg ci -Am E
adding E
created new head
$ echo F > E
$ hg ci -m 'F'
$ echo G > G
$ hg ci -Am G
adding G
$ hg merge
2 files updated, 0 files merged, 0 files removed, 0 files unresolved
(branch merge, don't forget to commit)
$ hg ci -m H
$ hg up -q 0
$ echo I > I
$ hg ci -Am I
adding I
created new head
$ hg tglog
@ 8: 'I'
|
| o 7: 'H'
| |\
| | o 6: 'G'
| | |
| | o 5: 'F'
| | |
| | o 4: 'E'
| | |
| o | 3: 'D'
| |\|
| o | 2: 'C'
|/ /
| o 1: 'B'
|/
o 0: 'A'
$ cd ..
Rebase and collapse - E onto I:
$ hg clone -q -u . c c1
$ cd c1
$ hg rebase -s 4 --dest 8 --collapse # root (4) is not a merge
rebasing 4:8a5212ebc852 "E"
rebasing 5:dca5924bb570 "F"
merging E
rebasing 6:55a44ad28289 "G"
rebasing 7:417d3b648079 "H"
saved backup bundle to $TESTTMP/c1/.hg/strip-backup/8a5212ebc852-f95d0879-backup.hg (glob)
$ hg tglog
o 5: 'Collapsed revision
|\ * E
| | * F
| | * G
| | * H'
| @ 4: 'I'
| |
o | 3: 'D'
|\ \
| o | 2: 'C'
| |/
o / 1: 'B'
|/
o 0: 'A'
$ hg manifest --rev tip
A
C
D
E
G
I
$ hg up tip -q
$ cat E
F
$ cd ..
Create repo d:
$ hg init d
$ cd d
$ echo A > A
$ hg ci -Am A
adding A
$ echo B > B
$ hg ci -Am B
adding B
$ echo C > C
$ hg ci -Am C
adding C
$ hg up -q 1
$ echo D > D
$ hg ci -Am D
adding D
created new head
$ hg merge
1 files updated, 0 files merged, 0 files removed, 0 files unresolved
(branch merge, don't forget to commit)
$ hg ci -m E
$ hg up -q 0
$ echo F > F
$ hg ci -Am F
adding F
created new head
$ hg tglog
@ 5: 'F'
|
| o 4: 'E'
| |\
| | o 3: 'D'
| | |
| o | 2: 'C'
| |/
| o 1: 'B'
|/
o 0: 'A'
$ cd ..
Rebase and collapse - B onto F:
$ hg clone -q -u . d d1
$ cd d1
$ hg rebase -s 1 --collapse --dest 5
rebasing 1:27547f69f254 "B"
rebasing 2:f838bfaca5c7 "C"
rebasing 3:7bbcd6078bcc "D"
rebasing 4:0a42590ed746 "E"
saved backup bundle to $TESTTMP/d1/.hg/strip-backup/27547f69f254-9a3f7d92-backup.hg (glob)
$ hg tglog
o 2: 'Collapsed revision
| * B
| * C
| * D
| * E'
@ 1: 'F'
|
o 0: 'A'
$ hg manifest --rev tip
A
B
C
D
F
Interactions between collapse and keepbranches
$ cd ..
$ hg init e
$ cd e
$ echo 'a' > a
$ hg ci -Am 'A'
adding a
$ hg branch 'one'
marked working directory as branch one
(branches are permanent and global, did you want a bookmark?)
$ echo 'b' > b
$ hg ci -Am 'B'
adding b
$ hg branch 'two'
marked working directory as branch two
$ echo 'c' > c
$ hg ci -Am 'C'
adding c
$ hg up -q 0
$ echo 'd' > d
$ hg ci -Am 'D'
adding d
$ hg tglog
@ 3: 'D'
|
| o 2: 'C' two
| |
| o 1: 'B' one
|/
o 0: 'A'
$ hg rebase --keepbranches --collapse -s 1 -d 3
abort: cannot collapse multiple named branches
[255]
$ repeatchange() {
> hg checkout $1
> hg cp d z
> echo blah >> z
> hg commit -Am "$2" --user "$3"
> }
$ repeatchange 3 "E" "user1"
0 files updated, 0 files merged, 0 files removed, 0 files unresolved
$ repeatchange 3 "E" "user2"
0 files updated, 0 files merged, 1 files removed, 0 files unresolved
created new head
$ hg tglog
@ 5: 'E'
|
| o 4: 'E'
|/
o 3: 'D'
|
| o 2: 'C' two
| |
| o 1: 'B' one
|/
o 0: 'A'
$ hg rebase -s 5 -d 4
rebasing 5:fbfb97b1089a "E" (tip)
note: rebase of 5:fbfb97b1089a created no changes to commit
saved backup bundle to $TESTTMP/e/.hg/strip-backup/fbfb97b1089a-553e1d85-backup.hg (glob)
$ hg tglog
@ 4: 'E'
|
o 3: 'D'
|
| o 2: 'C' two
| |
| o 1: 'B' one
|/
o 0: 'A'
$ hg export tip
# HG changeset patch
# User user1
# Date 0 0
# Thu Jan 01 00:00:00 1970 +0000
# Node ID f338eb3c2c7cc5b5915676a2376ba7ac558c5213
# Parent 41acb9dca9eb976e84cd21fcb756b4afa5a35c09
E
diff -r 41acb9dca9eb -r f338eb3c2c7c z
--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/z Thu Jan 01 00:00:00 1970 +0000
@@ -0,0 +1,2 @@
+d
+blah
$ cd ..
Rebase, collapse and copies
$ hg init copies
$ cd copies
$ hg unbundle "$TESTDIR/bundles/renames.hg"
adding changesets
adding manifests
adding file changes
added 4 changesets with 11 changes to 7 files (+1 heads)
(run 'hg heads' to see heads, 'hg merge' to merge)
$ hg up -q tip
$ hg tglog
@ 3: 'move2'
|
o 2: 'move1'
|
| o 1: 'change'
|/
o 0: 'add'
$ hg rebase --collapse -d 1
rebasing 2:6e7340ee38c0 "move1"
merging a and d to d
merging b and e to e
merging c and f to f
rebasing 3:338e84e2e558 "move2" (tip)
merging f and c to c
merging e and g to g
saved backup bundle to $TESTTMP/copies/.hg/strip-backup/6e7340ee38c0-ef8ef003-backup.hg (glob)
$ hg st
$ hg st --copies --change tip
A d
a
A g
b
R b
$ hg up tip -q
$ cat c
c
c
$ cat d
a
a
$ cat g
b
b
$ hg log -r . --template "{file_copies}\n"
d (a)g (b)
Test collapsing a middle revision in-place
$ hg tglog
@ 2: 'Collapsed revision
| * move1
| * move2'
o 1: 'change'
|
o 0: 'add'
$ hg rebase --collapse -r 1 -d 0
abort: can't remove original changesets with unrebased descendants
(use --keep to keep original changesets)
[255]
Test collapsing in place
$ hg rebase --collapse -b . -d 0
rebasing 1:1352765a01d4 "change"
rebasing 2:64b456429f67 "Collapsed revision" (tip)
saved backup bundle to $TESTTMP/copies/.hg/strip-backup/1352765a01d4-45a352ea-backup.hg (glob)
$ hg st --change tip --copies
M a
M c
A d
a
A g
b
R b
$ hg up tip -q
$ cat a
a
a
$ cat c
c
c
$ cat d
a
a
$ cat g
b
b
$ cd ..
Test stripping a revision with another child
$ hg init f
$ cd f
$ echo A > A
$ hg ci -Am A
adding A
$ echo B > B
$ hg ci -Am B
adding B
$ hg up -q 0
$ echo C > C
$ hg ci -Am C
adding C
created new head
$ hg tglog
@ 2: 'C'
|
| o 1: 'B'
|/
o 0: 'A'
$ hg heads --template="{rev}:{node} {branch}: {desc}\n"
2:c5cefa58fd557f84b72b87f970135984337acbc5 default: C
1:27547f69f25460a52fff66ad004e58da7ad3fb56 default: B
$ hg strip 2
0 files updated, 0 files merged, 1 files removed, 0 files unresolved
saved backup bundle to $TESTTMP/f/.hg/strip-backup/c5cefa58fd55-629429f4-backup.hg (glob)
$ hg tglog
o 1: 'B'
|
@ 0: 'A'
$ hg heads --template="{rev}:{node} {branch}: {desc}\n"
1:27547f69f25460a52fff66ad004e58da7ad3fb56 default: B
$ cd ..
Test collapsing changes that add then remove a file
$ hg init collapseaddremove
$ cd collapseaddremove
$ touch base
$ hg commit -Am base
adding base
$ touch a
$ hg commit -Am a
adding a
$ hg rm a
$ touch b
$ hg commit -Am b
adding b
$ hg book foo
$ hg rebase -d 0 -r "1::2" --collapse -m collapsed
rebasing 1:6d8d9f24eec3 "a"
rebasing 2:1cc73eca5ecc "b" (tip foo)
saved backup bundle to $TESTTMP/collapseaddremove/.hg/strip-backup/6d8d9f24eec3-77d3b6e2-backup.hg (glob)
$ hg log -G --template "{rev}: '{desc}' {bookmarks}"
@ 1: 'collapsed' foo
|
o 0: 'base'
$ hg manifest --rev tip
b
base
$ cd ..
Test that rebase --collapse will remember message after
running into merge conflict and invoking rebase --continue.
$ hg init collapse_remember_message
$ cd collapse_remember_message
$ touch a
$ hg add a
$ hg commit -m "a"
$ echo "a-default" > a
$ hg commit -m "a-default"
$ hg update -r 0
1 files updated, 0 files merged, 0 files removed, 0 files unresolved
$ hg branch dev
marked working directory as branch dev
(branches are permanent and global, did you want a bookmark?)
$ echo "a-dev" > a
$ hg commit -m "a-dev"
$ hg rebase --collapse -m "a-default-dev" -d 1
rebasing 2:b8d8db2b242d "a-dev" (tip)
merging a
warning: conflicts while merging a! (edit, then use 'hg resolve --mark')
unresolved conflicts (see hg resolve, then hg rebase --continue)
[1]
$ rm a.orig
$ hg resolve --mark a
(no more unresolved files)
continue: hg rebase --continue
$ hg rebase --continue
rebasing 2:b8d8db2b242d "a-dev" (tip)
saved backup bundle to $TESTTMP/collapse_remember_message/.hg/strip-backup/b8d8db2b242d-f474c19a-backup.hg (glob)
$ hg log
changeset: 2:45ba1d1a8665
tag: tip
user: test
date: Thu Jan 01 00:00:00 1970 +0000
summary: a-default-dev
changeset: 1:3c8db56a44bc
user: test
date: Thu Jan 01 00:00:00 1970 +0000
summary: a-default
changeset: 0:3903775176ed
user: test
date: Thu Jan 01 00:00:00 1970 +0000
summary: a
$ cd ..