histedit: replaces patching logic by merges
The old and fragile patching logic is replaced by smart merges (as rebase and
graft do). This should prevents some conflicts and smoother human resolution.
For this purpose the "foldchanges" function is renamed to "applychanges" and
handle a single revision only.
$ . "$TESTDIR/histedit-helpers.sh"
$ cat >> $HGRCPATH <<EOF
> [extensions]
> graphlog=
> histedit=
> EOF
$ EDITED="$TESTTMP/editedhistory"
$ cat > $EDITED <<EOF
> pick e860deea161a e
> pick 652413bf663e f
> fold 177f92b77385 c
> pick 055a42cdd887 d
> EOF
$ initrepo ()
> {
> hg init r
> cd r
> for x in a b c d e f ; do
> echo $x > $x
> hg add $x
> hg ci -m $x
> done
> }
$ initrepo
log before edit
$ hg log --graph
@ changeset: 5:652413bf663e
| tag: tip
| user: test
| date: Thu Jan 01 00:00:00 1970 +0000
| summary: f
|
o changeset: 4:e860deea161a
| user: test
| date: Thu Jan 01 00:00:00 1970 +0000
| summary: e
|
o changeset: 3:055a42cdd887
| user: test
| date: Thu Jan 01 00:00:00 1970 +0000
| summary: d
|
o changeset: 2:177f92b77385
| user: test
| date: Thu Jan 01 00:00:00 1970 +0000
| summary: c
|
o changeset: 1:d2ae7f538514
| user: test
| date: Thu Jan 01 00:00:00 1970 +0000
| summary: b
|
o changeset: 0:cb9a9f314b8b
user: test
date: Thu Jan 01 00:00:00 1970 +0000
summary: a
edit the history
$ HGEDITOR="cat \"$EDITED\" > " hg histedit 177f92b77385 2>&1 | fixbundle
0 files updated, 0 files merged, 4 files removed, 0 files unresolved
0 files updated, 0 files merged, 0 files removed, 0 files unresolved
0 files updated, 0 files merged, 0 files removed, 0 files unresolved
0 files updated, 0 files merged, 2 files removed, 0 files unresolved
2 files updated, 0 files merged, 0 files removed, 0 files unresolved
0 files updated, 0 files merged, 0 files removed, 0 files unresolved
0 files updated, 0 files merged, 0 files removed, 0 files unresolved
log after edit
$ hg log --graph
@ changeset: 4:82b0c1ff1777
| tag: tip
| user: test
| date: Thu Jan 01 00:00:00 1970 +0000
| summary: d
|
o changeset: 3:150aafb44a91
| user: test
| date: Thu Jan 01 00:00:00 1970 +0000
| summary: pick e860deea161a e
|
o changeset: 2:493dc0964412
| user: test
| date: Thu Jan 01 00:00:00 1970 +0000
| summary: e
|
o changeset: 1:d2ae7f538514
| user: test
| date: Thu Jan 01 00:00:00 1970 +0000
| summary: b
|
o changeset: 0:cb9a9f314b8b
user: test
date: Thu Jan 01 00:00:00 1970 +0000
summary: a
post-fold manifest
$ hg manifest
a
b
c
d
e
f
$ cd ..
folding and creating no new change doesn't break:
$ mkdir fold-to-empty-test
$ cd fold-to-empty-test
$ hg init
$ printf "1\n2\n3\n" > file
$ hg add file
$ hg commit -m '1+2+3'
$ echo 4 >> file
$ hg commit -m '+4'
$ echo 5 >> file
$ hg commit -m '+5'
$ echo 6 >> file
$ hg commit -m '+6'
$ hg log --graph
@ changeset: 3:251d831eeec5
| tag: tip
| user: test
| date: Thu Jan 01 00:00:00 1970 +0000
| summary: +6
|
o changeset: 2:888f9082bf99
| user: test
| date: Thu Jan 01 00:00:00 1970 +0000
| summary: +5
|
o changeset: 1:617f94f13c0f
| user: test
| date: Thu Jan 01 00:00:00 1970 +0000
| summary: +4
|
o changeset: 0:0189ba417d34
user: test
date: Thu Jan 01 00:00:00 1970 +0000
summary: 1+2+3
$ cat > editor.py <<EOF
> import re, sys
> rules = sys.argv[1]
> data = open(rules).read()
> data = re.sub(r'pick ([0-9a-f]{12} 2 \+5)', r'drop \1', data)
> data = re.sub(r'pick ([0-9a-f]{12} 2 \+6)', r'fold \1', data)
> open(rules, 'w').write(data)
> EOF
$ HGEDITOR='python editor.py' hg histedit 1
1 files updated, 0 files merged, 0 files removed, 0 files unresolved
merging file
warning: conflicts during merge.
merging file incomplete! (edit conflicts, then use 'hg resolve --mark')
abort: Fix up the change and run hg histedit --continue
[255]
There were conflicts, we keep P1 content. This
should effectively drop the changes from +6.
$ hg status
M file
? editor.py
? file.orig
$ hg resolve -l
U file
$ hg revert -r 'p1()' file
$ hg resolve --mark file
$ hg histedit --continue
0 files updated, 0 files merged, 0 files removed, 0 files unresolved
saved backup bundle to $TESTTMP/*-backup.hg (glob)
$ hg log --graph
@ changeset: 1:617f94f13c0f
| tag: tip
| user: test
| date: Thu Jan 01 00:00:00 1970 +0000
| summary: +4
|
o changeset: 0:0189ba417d34
user: test
date: Thu Jan 01 00:00:00 1970 +0000
summary: 1+2+3
$ cd ..
Test corner case where folded revision is separated from its parent by a
dropped revision.
$ hg init fold-with-dropped
$ cd fold-with-dropped
$ printf "1\n2\n3\n" > file
$ hg commit -Am '1+2+3'
adding file
$ echo 4 >> file
$ hg commit -m '+4'
$ echo 5 >> file
$ hg commit -m '+5'
$ echo 6 >> file
$ hg commit -m '+6'
$ hg log -G --template '{rev}:{node|short} {desc|firstline}\n'
@ 3:251d831eeec5 +6
|
o 2:888f9082bf99 +5
|
o 1:617f94f13c0f +4
|
o 0:0189ba417d34 1+2+3
$ EDITED="$TESTTMP/editcommands"
$ cat > $EDITED <<EOF
> pick 617f94f13c0f 1 +4
> drop 888f9082bf99 2 +5
> fold 251d831eeec5 3 +6
> EOF
$ HGEDITOR="cat $EDITED >" hg histedit 1
1 files updated, 0 files merged, 0 files removed, 0 files unresolved
merging file
warning: conflicts during merge.
merging file incomplete! (edit conflicts, then use 'hg resolve --mark')
abort: Fix up the change and run hg histedit --continue
[255]
$ cat > file << EOF
> 1
> 2
> 3
> 4
> 5
> EOF
$ hg resolve --mark file
$ hg commit -m '+5.2'
created new head
$ echo 6 >> file
$ HGEDITOR=cat hg histedit --continue
1 files updated, 0 files merged, 0 files removed, 0 files unresolved
+4
***
+5.2
***
+6
HG: Enter commit message. Lines beginning with 'HG:' are removed.
HG: Leave message empty to abort commit.
HG: --
HG: user: test
HG: branch 'default'
HG: changed file
1 files updated, 0 files merged, 0 files removed, 0 files unresolved
0 files updated, 0 files merged, 0 files removed, 0 files unresolved
saved backup bundle to $TESTTMP/fold-with-dropped/.hg/strip-backup/617f94f13c0f-backup.hg (glob)
$ cd ..