various checks & cleanups, default usage, hook script

Add file valid checks to update
Add file checks to parse contents
Remove empty files which don't download
Automatically attempt to update contents if they cannot be opened
Add default showopts if no options are passed
Remove show struct mention in usage
Move order of usage
Add alternative media toc file option
Added commit hook script

git-archimport-id: getht@sv.gnu.org/getht--mainline--0.1--patch-6

1 files changed, 4 insertions, 0 deletions

diff --git a/mediarev.c b/mediarev.c
index 9877561..777e786 100644
--- a/mediarev.c
+++ b/mediarev.c
@@ -77,6 +77,10 @@ int parsemediagz(char * media_path, med * cur_media, int * no_of_media)
 		}
 		strcpy(cur_line,""); /* reset cur_line */
 	}
+
+	if(*no_of_media == -1)
+		return 1;
+
 	return 0;
 }