branch: use non-gentle write_file for branch description

We use write_file_gently() to do this job currently.
However, if we see an error, we simply complain via
error_errno() and then end up exiting with an error code.

By switching to the non-gentle form, the function will die
for us, with a better error. It is more specific about which
syscall caused the error, and that mentions the
actual filename we're trying to write.

Our exit code for the error case does switch from "1" to
"128", but that's OK; it wasn't a meaningful documented code
(and in fact it was odd that it was a different exit code
than most other error conditions).

Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>

diff --git a/builtin/branch.c b/builtin/branch.c
index 2ecde53bf838777e191926557c0c8190cdc7d09a..15232c4a428b5b458fcd974440b0e884c2db6952 100644 (file)
--- a/builtin/branch.c
+++ b/builtin/branch.c
@@ -618,10 +618,7 @@ static int edit_branch_description(const char *branch_name)
                    "  %s\n"
                    "Lines starting with '%c' will be stripped.\n",
                    branch_name, comment_line_char);
-       if (write_file_gently(git_path(edit_description), "%s", buf.buf)) {
-               strbuf_release(&buf);
-               return error_errno(_("could not write branch description template"));
-       }
+       write_file(git_path(edit_description), "%s", buf.buf);
        strbuf_reset(&buf);
        if (launch_editor(git_path(edit_description), &buf, NULL)) {
                strbuf_release(&buf);