rhg: desambiguate status without decompressing filelog if possible
When status is unsure based on `stat()` and the dirstate if a file is clean
or modified, we need to compare it against the filelog.
This comparison can skip looking at contents if the lengths differ.
This changeset optimize this further to deduce what we can about the length
if the filelog without decompressing it or resolving deltas.
Differential Revision: https://phab.mercurial-scm.org/D11965
$ cat <<EOF >> $HGRCPATH
> [extensions]
> notify =
> hooklib =
>
> [phases]
> publish = False
>
> [notify]
> sources = pull
> diffstat = False
> messageidseed = example
> domain = example.com
>
> [reposubs]
> * = baz
> EOF
$ hg init a
$ hg --cwd a debugbuilddag .
$ hg init b
$ cat <<EOF >> b/.hg/hgrc
> [hooks]
> incoming.notify = python:hgext.notify.hook
> txnclose-phase.changeset_published = python:hgext.hooklib.changeset_published.hook
> EOF
$ hg --cwd b pull ../a | "$PYTHON" $TESTDIR/unwrap-message-id.py
pulling from ../a
requesting all changes
adding changesets
adding manifests
adding file changes
added 1 changesets with 0 changes to 0 files
new changesets 1ea73414a91b (1 drafts)
MIME-Version: 1.0
Content-Type: text/plain; charset="us-ascii"
Content-Transfer-Encoding: 7bit
Date: * (glob)
Subject: changeset in * (glob)
From: debugbuilddag@example.com
X-Hg-Notification: changeset 1ea73414a91b
Message-Id: <hg.81c297828fd2d5afaadf2775a6a71b74143b6451dfaac09fac939e9107a50d01@example.com>
To: baz@example.com
changeset 1ea73414a91b in $TESTTMP/b
details: $TESTTMP/b?cmd=changeset;node=1ea73414a91b
description:
r0
(run 'hg update' to get a working copy)
$ hg --cwd a phase --public 0
$ hg --cwd b pull ../a | "$PYTHON" $TESTDIR/unwrap-message-id.py
pulling from ../a
searching for changes
no changes found
1 local changesets published
Subject: changeset published
In-reply-to: <hg.81c297828fd2d5afaadf2775a6a71b74143b6451dfaac09fac939e9107a50d01@example.com>
Message-Id: <hg.2ec19bbddee5b542442bf5e1aed97bf706afff6aa765629883fbd1f4edd6fcb0@example.com>
Date: * (glob)
From: test@example.com
To: baz@example.com
This changeset has been published.
$ hg --cwd b phase --force --draft 0
$ cat <<EOF >> b/.hg/hgrc
> [notify_published]
> messageidseed = example2
> domain = alt.example.com
> template = Subject: changeset published
> From: hg@example.com\n
> This draft changeset has been published.\n
> EOF
$ hg --cwd b pull ../a | "$PYTHON" $TESTDIR/unwrap-message-id.py
pulling from ../a
searching for changes
no changes found
1 local changesets published
Subject: changeset published
From: hg@example.com
In-reply-to: <hg.e3381dc41c051215e50b1c166a72949d0fff99609eb373420bcb763af80ef230@alt.example.com>
Message-Id: <hg.c927f3d324e645a4245bfed20b0efb5b9582999d6be9bef45a37e7ec21208b24@alt.example.com>
Date: * (glob)
To: baz@example.com
This draft changeset has been published.