"David A. Greene" <greened@xxxxxxxxxxxxx> writes:
> From: "David A. Greene" <greened@xxxxxxxxxxxxx>
>
> 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 <greened@xxxxxxxxxxxxx>
> ---
> contrib/subtree/git-subtree.sh | 12 ++++++++++++
> 1 file changed, 12 insertions(+)
>
> diff --git a/contrib/subtree/git-subtree.sh b/contrib/subtree/git-subtree.sh
> index 7ceb413..b8a807a 100755
> --- a/contrib/subtree/git-subtree.sh
> +++ b/contrib/subtree/git-subtree.sh
> @@ -509,8 +509,20 @@ cmd_add()
> ensure_clean
>
> if [ $# -eq 1 ]; then
> + ref=$(git check-ref-format --normalize "refs/heads/$1") ||
> + die "'$1' is not a valid refspec. Are you missing a branch?"
Is a user forbidden from passing a commit that is not at the tip of
an existing branch? In other words, is
$ subtree add origin/next~4^2
forbidden?
> + rev=$(git rev-parse --verify $1) ||
> + die "'$1' is not a valid refspec. Are you missing a branch?"
> +
> "cmd_add_commit" "$@"
If you want to make sure you give a comit to add_commit, you can
probably say something like this:
git rev-parse -q --verify "$1^{commit}" >/dev/null ||
die "'$1' does not refer to a commit"
> elif [ $# -eq 2 ]; then
> + ref=$(git check-ref-format --normalize "refs/heads/$2") ||
> + die "'$2' is not a valid refspec."
> +
> + rev=$(git rev-parse --verify $2) ||
> + die "'$2' is not a valid refspec."
> +
Likewise.
> "cmd_add_repository" "$@"
> else
> say "error: parameters were '$@'"
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