evolve: Fix crush when reading docstring
Before this patch, hg evolve --divergent could crush when looking
for docstring of function of merge.update. We were checking the
docstring to work properly with older version of Mercurial. It
could crush if an extension would wrap merge.update without
keeping the docstring. This patch fixes the crush.
Initial setup
$ . $TESTDIR/_exc-util.sh
=== A.7 Non targeted common changeset ===
.. {{{
.. ⇠◕ A
.. |
.. ● O
.. }}}
..
.. Marker exist from:
..
.. * Chain from A
..
.. Command run:
..
.. * hg push -r O
..
.. Expected exchange:
..
.. * ø
$ setuprepos A.7
creating test repo for test case A.7
- pulldest
- main
- pushdest
cd into `main` and proceed with env setup
$ cd main
$ mkcommit A
$ hg push -q ../pushdest
$ hg push -q ../pulldest
$ hg debugobsolete aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa `getid 'desc(A)'`
$ hg log -G --hidden
@ f5bc6836db60 (draft): A
|
o a9bdc8b26820 (public): O
$ hg debugobsolete
aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa f5bc6836db60e308a17ba08bf050154ba9c4fad7 0 (Thu Jan 01 00:00:00 1970 +0000) {'user': 'test'}
$ cd ..
$ cd ..
Actual Test
-----------------------------------
$ dotest A.7 O
## Running testcase A.7
# testing echange of "O" (a9bdc8b26820)
## initial state
# obstore: main
aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa f5bc6836db60e308a17ba08bf050154ba9c4fad7 0 (Thu Jan 01 00:00:00 1970 +0000) {'user': 'test'}
# obstore: pushdest
# obstore: pulldest
## pushing "O" from main to pushdest
pushing to pushdest
searching for changes
no changes found
## post push state
# obstore: main
aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa f5bc6836db60e308a17ba08bf050154ba9c4fad7 0 (Thu Jan 01 00:00:00 1970 +0000) {'user': 'test'}
# obstore: pushdest
# obstore: pulldest
## pulling "a9bdc8b26820" from main into pulldest
pulling from main
no changes found
## post pull state
# obstore: main
aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa f5bc6836db60e308a17ba08bf050154ba9c4fad7 0 (Thu Jan 01 00:00:00 1970 +0000) {'user': 'test'}
# obstore: pushdest
# obstore: pulldest