On Mon, Sep 17, 2018 at 4:43 PM Eric Sunshine <sunshine@xxxxxxxxxxxxxx> wrote: > I did consider this case and felt that it would be reasonable for it > to error out and ignore the error if git was missing or if the > directory was not a repository. And, I _thought_ I had prefixed the > line with "-" to handle just such a case, but apparently I botched it. > Oh well. Dredging up from memory, I think the omission of "-" from the Makefile line was intentional since I specifically handled the case of missing "git" command in the script itself by ignoring any error from it. Specifically, this excerpt from doc-diff: if test -n "$clean" then test $# -eq 0 || usage git worktree remove --force "$tmp/worktree" 2>/dev/null rm -rf "$tmp" exit 0 fi in which a problem invoking git is explicitly ignored and the script exits cleanly, so no Makefile "-" is needed. Unfortunately, I forgot about the: . "$(git --exec-path)/git-sh-setup" which happens earlier in the script.