evolve: add pre-check logic for content-divergence in rewriteutil.precheck()
For now, pre-check will abort if rewriting a rev create divergence (and
config experimental.evolution.allowdivergence is not set to True).
But this behaviour can be improved where instead of abort maybe we
can confirm the user to either proceed with divergence or some other
options depends on what command user is running.
Changes in test file are used to overrides the pre-check for testing
purpose (using experimental.evolution.allowdivergence=yes).
Testing `hg stack` on complex cases when we have multiple successors because of
divergence, split etc.
$ . "$TESTDIR/testlib/topic_setup.sh"
Setup
$ cat << EOF >> $HGRCPATH
> [experimental]
> evolution = all
> evolution.allowdivergence = True
> [ui]
> interactive = True
> [extensions]
> show =
> EOF
$ echo "evolve=$(echo $(dirname $TESTDIR))/hgext3rd/evolve/" >> $HGRCPATH
$ hg init test
$ cd test
$ echo foo > foo
$ hg add foo
$ hg ci -m "Added foo"
$ hg phase -r . --public
$ hg topic foo
marked working directory as topic: foo
$ echo a > a
$ echo b > b
$ hg ci -Aqm "Added a and b"
$ echo c > c
$ echo d > d
$ hg ci -Aqm "Added c and d"
$ echo e > e
$ echo f > f
$ hg ci -Aqm "Added e and f"
$ hg show work
@ f1d3 (foo) Added e and f
o 8e82 (foo) Added c and d
o 002b (foo) Added a and b
o f360 Added foo
Testing in case of split within the topic
$ hg stack
### topic: foo
### target: default (branch)
s3@ Added e and f (current)
s2: Added c and d
s1: Added a and b
s0^ Added foo (base)
$ hg prev
0 files updated, 0 files merged, 2 files removed, 0 files unresolved
[s2] Added c and d
$ echo 0 > num
$ cat > editor.sh << '__EOF__'
> NUM=$(cat num)
> NUM=`expr "$NUM" + 1`
> echo "$NUM" > num
> echo "split$NUM" > "$1"
> __EOF__
$ export HGEDITOR="\"sh\" \"editor.sh\""
$ hg split << EOF
> y
> y
> n
> c
> EOF
0 files updated, 0 files merged, 2 files removed, 0 files unresolved
adding c
adding d
diff --git a/c b/c
new file mode 100644
examine changes to 'c'?
(enter ? for help) [Ynesfdaq?] y
@@ -0,0 +1,1 @@
+c
record change 1/2 to 'c'?
(enter ? for help) [Ynesfdaq?] y
diff --git a/d b/d
new file mode 100644
examine changes to 'd'?
(enter ? for help) [Ynesfdaq?] n
continue splitting? [Ycdq?] c
1 new orphan changesets
$ hg stack
### topic: foo
### target: default (branch)
s4$ Added e and f (orphan)
s3@ split2 (current)
s2: split1
s1: Added a and b
s0^ Added foo (base)
$ hg show work
@ 5cce (foo) split2
o f26c (foo) split1
| * f1d3 (foo) Added e and f
| x 8e82 (foo) Added c and d
|/
o 002b (foo) Added a and b
o f360 Added foo
$ hg prev
0 files updated, 0 files merged, 1 files removed, 0 files unresolved
[s2] split1
$ echo foo > c
$ hg diff
diff -r f26c1b9addde c
--- a/c Thu Jan 01 00:00:00 1970 +0000
+++ b/c Thu Jan 01 00:00:00 1970 +0000
@@ -1,1 +1,1 @@
-c
+foo
$ hg amend
1 new orphan changesets
$ hg show work
@ 7d94 (foo) split1
| * 5cce (foo) split2
| x f26c (foo) split1
|/
| * f1d3 (foo) Added e and f
| x 8e82 (foo) Added c and d
|/
o 002b (foo) Added a and b
o f360 Added foo
$ hg stack
### topic: foo (2 heads)
### target: default (branch), 2 behind
s4$ Added e and f (orphan)
s3$ split2 (orphan)
s2@ split1 (current)
s1: Added a and b
s0^ Added foo (base)
Test case with divergence
-------------------------
$ hg evolve --all
move:[s3] split2
atop:[s2] split1
move:[s4] Added e and f
$ hg up s4
3 files updated, 0 files merged, 0 files removed, 0 files unresolved
$ hg id -r .
ec94a1ed1330 tip
$ hg up --hidden 'min(predecessors(.))'
1 files updated, 0 files merged, 0 files removed, 0 files unresolved
updated to hidden changeset f1d3649d6a8b
(hidden revision 'f1d3649d6a8b' was rewritten as: ec94a1ed1330)
working directory parent is obsolete! (f1d3649d6a8b)
(use 'hg evolve' to update to its successor: ec94a1ed1330)
$ hg amend -d '0 1'
1 new orphan changesets
2 new content-divergent changesets
$ hg rebase -r . -d ec94a1ed1330~1
rebasing 9:eb3b16fef8ea "Added e and f" (tip foo)
$ hg stack
### topic: foo (2 heads)
### target: default (branch)
s5$ Added e and f (content divergent)
s3^ split2 (base)
s4@ Added e and f (content divergent current)
s3: split2
s2: split1
s1: Added a and b
s0^ Added foo (base)
$ hg evolve --content-divergent -r ec94a1ed1330
merge:[s5] Added e and f
with: [s4] Added e and f
base: [3] Added e and f
0 files updated, 0 files merged, 0 files removed, 0 files unresolved
working directory is now at 80b2ddbf01d3
$ hg log -r 80b2ddbf01d3 -T '{date|hgdate}\n'
0 1