Merge branch 'cm/remote-mediawiki'

[thirdparty/git.git] / contrib / mw-to-git / git-remote-mediawiki.perl

diff --git a/contrib/mw-to-git/git-remote-mediawiki.perl b/contrib/mw-to-git/git-remote-mediawiki.perl
index 717387275cdb0fd7e4999503cd53261e11f851a1..c1a967b3d14e87fedebd093c473e1d6f6eb4e94c 100755 (executable)
--- a/contrib/mw-to-git/git-remote-mediawiki.perl
+++ b/contrib/mw-to-git/git-remote-mediawiki.perl
@@ -42,6 +42,10 @@ use constant NULL_SHA1 => "0000000000000000000000000000000000000000";
 # Used on Git's side to reflect empty edit messages on the wiki
 use constant EMPTY_MESSAGE => '*Empty MediaWiki Message*';
 
+if (@ARGV != 2) {
+       exit_error_usage();
+}
+
 my $remotename = $ARGV[0];
 my $url = $ARGV[1];
 
@@ -157,6 +161,17 @@ while (<STDIN>) {
 
 ########################## Functions ##############################
 
+## error handling
+sub exit_error_usage {
+       die "ERROR: git-remote-mediawiki module was not called with a correct number of\n" .
+           "parameters\n" .
+           "You may obtain this error because you attempted to run the git-remote-mediawiki\n" .
+            "module directly.\n" .
+           "This module can be used the following way:\n" .
+           "\tgit clone mediawiki://<address of a mediawiki>\n" .
+           "Then, use git commit, push and pull as with every normal git repository.\n";
+}
+
 # MediaWiki API instance, created lazily.
 my $mediawiki;