You appear to have cloned an empty MediaWiki.

[adrelanos]

• It's a public wiki. No password protection for viewing.
• https://www.whonix.org/wiki
• Operating system: Debian buster
• Git version: git version 2.26.1
• Mediawiki remote version: 1.34.1
• Install method: https://packages.debian.org/buster-backports/git-mediawiki
• Site URL: https://www.whonix.org/wiki/
• Mediawiki 1.34.1
• Git configuration:

 git config -l

user.name=whonix
user.email=postmaster at whonix.org (manually redacted to reduce spam)
core.repositoryformatversion=0
core.filemode=true
core.bare=false
core.logallrefupdates=true

git clone mediawiki::https://www.whonix.org/w

Says Found 0 revision(s). for all pages.

[snip]
page 799/800: Upgrade
Found 0 revision(s).
page 800/800: Dev/Archived Discussions
Found 0 revision(s).
You appear to have cloned an empty MediaWiki.
fatal: could not read ref refs/mediawiki/origin/master

Any advice?

[mrMams]

Hi, I'm having the same issue. @adrelanos, did you manage to find a workaround here ?
Thanks for letting me know.

[mrMams]

I just found the root cause in my case: it is exactly the same as #65 .

Indeed, in the MediaWiki I'm working on, there was no page with a revision 1. In Git-MediaWiki, in the function fetch_mw_revisions_for_page, a query is made using MediaWiki API in order to get all the revisions for a given page.

However, as stated in MediaWiki API documentation about the parameter rvstartid used in the query (check (here)[https://www.mediawiki.org/w/api.php?action=help&modules=query%2Brevisions]) :

Start enumeration from this revision's timestamp. The revision must exist, but need not belong to this page.
May only be used with a single page (mode #2).
Type: integer

If this parameter is provided with a revision that doesn't exist (1 here), an error is returned. Therefore, no revision is processed, and "Found 0 revision(s)" is returned.

So I made the quick (and possibly dirty) fix below in git-remote-mediawiki.perl file in order to make it work.

sub fetch_mw_revisions_for_page {
    my $page = shift;
    my $id = shift;
    my $fetch_from = shift;
    my @page_revs = ();
    my $query = {
        action => 'query',
        prop => 'revisions',
        rvprop => 'ids',
        rvdir => 'newer',
        # FIX start : rvstartid should not be added if $fetch_from is 1, because rev 1 does not always exist on pages
        # rvstartid => $fetch_from,
        # FIX end
        rvlimit => 500,
        pageids => $id,

        # Let MediaWiki know that we support the latest API.
        continue => '',
    };

    #FIX start : adding rvstartid to query only if $fetch_from is not equals to 1
    if ($fetch_from != 1) {
        $query->{rvstartid} = $fetch_from;
    }
    #FIX end

    my $revnum = 0;
    # Get 500 revisions at a time due to the mediawiki api limit
    
    # ... rest of the code....
}

@anarcat , I don't know if you are still a maintainer here, but you may want to have a look (and possibly include, if relevant) my quick fix above.

[cooljeanius]

huh I wonder if this was the same issue I was running into a few years back...

[adrelanos]

Could you please send a pull request here?

https://github.com/git/git/blob/master/contrib/mw-to-git/git-remote-mediawiki.perl