From: "David A. Greene" <gree...@obbligato.org>
Check refspecs for validity before passing them on to other commands.
This lets us generate more helpful error messages.
Signed-off-by: David A. Greene <gree...@obbligato.org>
---
contrib/subtree/git-subtree.sh | 12 +++++++++---
1 file changed, 9 insertions(+), 3 deletions(-)
diff --git a/contrib/subtree/git-subtree.sh b/contrib/subtree/git-subtree.sh
index 5598210..771f39d 100755
--- a/contrib/subtree/git-subtree.sh
+++ b/contrib/subtree/git-subtree.sh
@@ -497,12 +497,18 @@ cmd_add()
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 [ $# -eq 2 ]; then
- "cmd_add_repository" "$@"
+ 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
}
--
1.7.10.4
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