[PATCH] remote-mediawiki: limit filenames to legal

["Antoine Beaupré" <anarcat@debian.org>]

mediawiki pages can have names longer than NAME_MAX (generally 255)
characters, which will fail on checkout. we simply strip out extra
characters, which may mean one page's content will overwrite another
(the last editing winning).

ideally, we would do a more clever system to find unique names, but
that would be more difficult and error prone for a situation that
should rarely happen in the first place.
---
 contrib/mw-to-git/git-remote-mediawiki.perl | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/contrib/mw-to-git/git-remote-mediawiki.perl b/contrib/mw-to-git/git-remote-mediawiki.perl
index e7f857c1a..58870d197 100755
--- a/contrib/mw-to-git/git-remote-mediawiki.perl
+++ b/contrib/mw-to-git/git-remote-mediawiki.perl
@@ -18,6 +18,7 @@ use Git::Mediawiki qw(clean_filename smudge_filename connect_maybe
 					EMPTY HTTP_CODE_OK);
 use DateTime::Format::ISO8601;
 use warnings;
+use POSIX;
 
 # By default, use UTF-8 to communicate with Git and the user
 binmode STDERR, ':encoding(UTF-8)';
@@ -703,7 +704,7 @@ sub import_file_revision {
 		%mediafile = %{$mediafile};
 	}
 
-	my $title = $commit{title};
+	my $title = substr($commit{title}, 0, NAME_MAX);
 	my $comment = $commit{comment};
 	my $content = $commit{content};
 	my $author = $commit{author};
-- 
2.11.0