How can I get a commit message from a bzr post-commit hook?
<p>I'm trying to write a bzr post-commit hook for my private bugtracker, but I'm stuck at the function signature of post_commit(local, master, old_revno, old_revid, new_revno, mew_revid).  How can I extract the commit message for the branch from this with bzrlib in Python?</p>

<p>And the answer is like so:</p>

<pre><code>def check_commit_msg(local, master, old_revno, old_revid, new_revno, new_revid):
    branch = local or master
    revision = branch.repository.get_revision(new_revid)
    print revision.message
</code></pre>

<p>local and master are Branch objects, so once you have a revision, it's easy to extract the message.</p>
