fi
OPTS_SPEC="\
git subtree add --prefix=<prefix> <commit>
+git subtree add --prefix=<prefix> <repository> <commit>
git subtree merge --prefix=<prefix> <commit>
git subtree pull --prefix=<prefix> <repository> <refspec...>
git subtree push --prefix=<prefix> <repository> <refspec...>
ensure_clean
if [ $# -eq 1 ]; then
- "cmd_add_commit" "$@"
+ git rev-parse -q --verify "$1^{commit}" >/dev/null ||
+ die "'$1' does not refer to a commit"
+
+ "cmd_add_commit" "$@"
elif [ $# -eq 2 ]; then
- "cmd_add_repository" "$@"
+ # Technically we could accept a refspec here but we're
+ # just going to turn around and add FETCH_HEAD under the
+ # specified directory. Allowing a refspec might be
+ # misleading because we won't do anything with any other
+ # branches fetched via the refspec.
+ git rev-parse -q --verify "$2^{commit}" >/dev/null ||
+ die "'$2' does not refer to a commit"
+
+ "cmd_add_repository" "$@"
else
say "error: parameters were '$@'"
- die "Provide either a refspec or a repository and refspec."
+ die "Provide either a commit or a repository and commit."
fi
}