phase: when phase cannot be reduced, hint at --force and return 1 (BC)
Before, trying to change the phase of a "public" node to "draft" would result
in:
$ hg phase --draft .
no phases changed
[0]
With this patch:
$ hg phase --draft .
cannot move 1 changesets to a more permissive phase, use --force
no phases changed
[1]
On partial failures, the exit status is now 1 instead of 0 and the number of
changed nodes is displayed while it was only with --verbose. It seems useful to
tell the user that despite the apparent failure, something changed.
$ hg phase --draft '5 or 7'
cannot move 1 changesets to a more permissive phase, use --force
phase changed for 1 changesets
[1]
$ hg init
$ python -c 'file("a", "wb").write("confuse str.splitlines\nembedded\rnewline\n")'
$ hg ci -Ama -d '1 0'
adding a
$ echo clean diff >> a
$ hg ci -mb -d '2 0'
$ hg diff -r0 -r1
diff -r 107ba6f817b5 -r 310ce7989cdc a
--- a/a Thu Jan 01 00:00:01 1970 +0000
+++ b/a Thu Jan 01 00:00:02 1970 +0000
@@ -1,2 +1,3 @@
confuse str.splitlines
embedded\rnewline (esc)
+clean diff