mq: factor out push conditions checks
Some extensions (e.g. hgsubversion) completely override push command. Because
extensions load order is unspecified, if hgsubversion loads before mq, mq
checks about not pushing applied patches will be bypassed. Short of finding a
way to fix load order, extracting the checking logic will allow
hgsubversion-like extensions to run the check themselves.
$ cat <<EOF >> $HGRCPATH
> [extensions]
> notify=
>
> [hooks]
> changegroup.notify = python:hgext.notify.hook
>
> [notify]
> sources = push
> diffstat = False
> maxsubject = 10
>
> [usersubs]
> foo@bar = *
>
> [reposubs]
> * = baz
> EOF
$ hg init a
clone
$ hg --traceback clone a b
updating to branch default
0 files updated, 0 files merged, 0 files removed, 0 files unresolved
$ echo a > b/a
commit
$ hg --traceback --cwd b commit -Ama
adding a
$ echo a >> b/a
commit
$ hg --traceback --cwd b commit -Amb
push
$ hg --traceback --cwd b push ../a 2>&1 |
> python -c 'import sys,re; print re.sub("\n\t", " ", sys.stdin.read()),'
pushing to ../a
searching for changes
adding changesets
adding manifests
adding file changes
added 2 changesets with 2 changes to 1 files
Content-Type: text/plain; charset="us-ascii"
MIME-Version: 1.0
Content-Transfer-Encoding: 7bit
Date: * (glob)
Subject: * (glob)
From: test
X-Hg-Notification: changeset cb9a9f314b8b
Message-Id: <*> (glob)
To: baz, foo@bar
changeset cb9a9f314b8b in $TESTTMP/a
details: $TESTTMP/a?cmd=changeset;node=cb9a9f314b8b
summary: a
changeset ba677d0156c1 in $TESTTMP/a
details: $TESTTMP/a?cmd=changeset;node=ba677d0156c1
summary: b
diffs (6 lines):
diff -r 000000000000 -r ba677d0156c1 a
--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/a Thu Jan 01 00:00:00 1970 +0000
@@ -0,0 +1,2 @@
+a
+a