stack: get stack data directly from stack and remove stackdata()
stackdata function began its life in 137f8b04901e as a proto-stack: it computed
stack revs on its own and only had one property to return, "changesetcount".
Later it started to prepare and return more properties, but since b933a8068c17
it was computing revs using a getstack function. And then finally in
17749d9d3968 it started to rely on stack class entirely.
It was a good function, but now, when all the logic it provided was factored
into stack class, I'd say it's finally time for it to be put to rest.
This test file test the #6028 issue
evolve fails with mercurial.error.ProgrammingError: unsupported changeid '' of type <type 'str'>
https://bz.mercurial-scm.org/show_bug.cgi?id=6028
Global setup
============
$ . $TESTDIR/testlib/common.sh
$ cat >> $HGRCPATH <<EOF
> [ui]
> interactive = true
> [phases]
> publish=False
> [extensions]
> evolve =
> topic =
> EOF
Test
====
$ hg init $TESTTMP/issue-6028
$ cd $TESTTMP/issue-6028
create initial commit
$ echo "0" > 0
$ hg ci -Am 0
adding 0
$ hg up default
0 files updated, 0 files merged, 0 files removed, 0 files unresolved
$ hg topics a
marked working directory as topic: a
$ echo "a" > a
$ hg ci -Am a
adding a
active topic 'a' grew its first changeset
(see 'hg help topics' for more information)
$ hg up default
0 files updated, 0 files merged, 1 files removed, 0 files unresolved
$ hg topics b
marked working directory as topic: b
$ echo "b" > b
$ hg ci -Am b
adding b
active topic 'b' grew its first changeset
(see 'hg help topics' for more information)
$ hg up default
0 files updated, 0 files merged, 1 files removed, 0 files unresolved
$ hg branch integration
marked working directory as branch integration
$ hg merge a
1 files updated, 0 files merged, 0 files removed, 0 files unresolved
(branch merge, don't forget to commit)
$ hg ci -m "merged a"
$ hg merge b
1 files updated, 0 files merged, 0 files removed, 0 files unresolved
(branch merge, don't forget to commit)
$ hg ci -m "merged b"
$ hg up a
switching to topic a
0 files updated, 0 files merged, 1 files removed, 0 files unresolved
$ echo "a bad commit" >> a_bad_commit
$ hg add a_bad_commit
$ hg ci -m "a bad commit"
$ hg up integration
1 files updated, 0 files merged, 1 files removed, 0 files unresolved
$ hg merge a
1 files updated, 0 files merged, 0 files removed, 0 files unresolved
(branch merge, don't forget to commit)
$ hg ci -m "merged a bad commit"
$ hg up a
switching to topic a
0 files updated, 0 files merged, 1 files removed, 0 files unresolved
$ echo "aa" >> a
$ hg ci -m "aa"
$ hg up integration
2 files updated, 0 files merged, 0 files removed, 0 files unresolved
$ hg merge a
1 files updated, 0 files merged, 0 files removed, 0 files unresolved
(branch merge, don't forget to commit)
$ hg ci -m "merged aa"
$ hg up b
switching to topic b
0 files updated, 0 files merged, 2 files removed, 0 files unresolved
$ echo "bb" >> b
$ hg ci -m "bb"
$ hg up integration
3 files updated, 0 files merged, 0 files removed, 0 files unresolved
$ hg merge b
1 files updated, 0 files merged, 0 files removed, 0 files unresolved
(branch merge, don't forget to commit)
$ hg ci -m "merged bb"
create instability by pruning two changesets, one in a topic, one in a merge
$ hg prune -r 5:6
2 changesets pruned
3 new orphan changesets
$ hg up 4
2 files updated, 0 files merged, 1 files removed, 0 files unresolved
start the evolve
$ hg evolve --update --no-all
move:[8] merged aa
atop:[4] merged b
working directory is now at c920dd828523
evolve creates an obsolete changeset above as 11
$ hg evolve -r .
cannot solve instability of c920dd828523, skipping
cannot solve instability of c920dd828523, skipping