How to test for a no-op commit.

According to the docstring for svn_client_commit, you should test for
commit_info->revision being SVN_INVALID_REVNUM:

 * If no error is returned and @a (*commit_info)->revision is set to
 * @c SVN_INVALID_REVNUM, then the commit was a no-op; nothing needed to
 * be committed.

However, the Subversion client itself does not seem to do that, instead
checking for commit_info being NULL:

  if (commit_info && ! opt_state->quiet)
    SVN_ERR (svn_cl__print_commit_info (commit_info, pool));

(http://svn.collab.net/repos/svn/trunk/subversion/clients/cmdline/commit-cmd
.c)

The reason I'm asking is that I am seeing commit_info being non-null and
pointing to junk for an svn_client_commit call on a WC without
modifications. This only happens in Release builds - Debug builds leave
commit_info as NULL.

In any case, the doc string seems to be wrong.

--
Arild
AnkhSVN: http://ankhsvn.tigris.org
Blog: http://ankhsvn.com/blog
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"Weaseling out of things is good. It's what separates us from the other
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