[PATCH] Update tags to record who made them

And finally what all of this has been leading up to.
The 2 line code change to record who made a tag,
and the 8 line code change to check that we recorded
the tag.

Gosh the error checking is always so much bigger than the code :)

Signed-off-by: Linus Torvalds <torvalds@osdl.org>

diff --git a/git-tag-script b/git-tag-script
index aee4891..4124f54 100755 (executable)
--- a/git-tag-script
+++ b/git-tag-script
@@ -7,6 +7,7 @@ name="$1"
 
 object=${2:-$(cat "$GIT_DIR"/HEAD)}
 type=$(git-cat-file -t $object) || exit 1
+tagger=$(git-var GIT_COMMITTER_IDENT) || exit 1
 
 ( echo "#"
   echo "# Write a tag message"
@@ -17,7 +18,7 @@ grep -v '^#' < .editmsg | git-stripspace > .tagmsg
 
 [ -s .tagmsg ] || exit
 
-( echo -e "object $object\ntype $type\ntag $name\n"; cat .tagmsg ) > .tmp-tag
+( echo -e "object $object\ntype $type\ntag $name\ntagger $tagger\n"; cat .tagmsg ) > .tmp-tag
 rm -f .tmp-tag.asc .tagmsg
 gpg -bsa .tmp-tag && cat .tmp-tag.asc >> .tmp-tag
 mkdir -p "$GIT_DIR/refs/tags"

diff --git a/mktag.c b/mktag.c
index 8cbbef6..585677e 100644 (file)
--- a/mktag.c
+++ b/mktag.c
@@ -42,7 +42,7 @@ static int verify_tag(char *buffer, unsigned long size)
        int typelen;
        char type[20];
        unsigned char sha1[20];
-       const char *object, *type_line, *tag_line;
+       const char *object, *type_line, *tag_line, *tagger_line;
 
        if (size < 64 || size > MAXSIZE-1)
                return -1;
@@ -92,6 +92,12 @@ static int verify_tag(char *buffer, unsigned long size)
                return -1;
        }
 
+       /* Verify the tagger line */
+       tagger_line = tag_line;
+
+       if (memcmp(tagger_line, "tagger", 6) || (tagger_line[6] == '\n'))
+               return -1;
+
        /* The actual stuff afterwards we don't care about.. */
        return 0;
 }
@@ -119,7 +125,7 @@ int main(int argc, char **argv)
                size += ret;
        }
 
-       // Verify it for some basic sanity: it needs to start with "object <sha1>\ntype "
+       // Verify it for some basic sanity: it needs to start with "object <sha1>\ntype\ntagger "
        if (verify_tag(buffer, size) < 0)
                die("invalid tag signature file");