rebase: validate -C<n> and --whitespace=<mode> parameters early
It is a good idea to error out early upon seeing, say, `-Cbad`, rather
than starting the rebase only to have the `--am` backend complain later.
Let's do this.
The only options accepting parameters which we pass through to `git am`
(which may, or may not, forward them to `git apply`) are `-C` and
`--whitespace`. The other options we pass through do not accept
parameters, so we do not have to validate them here.
Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
diff --git a/builtin/rebase.c b/builtin/rebase.c
index 96ffa80..571cf89 100644
--- a/builtin/rebase.c
+++ b/builtin/rebase.c
@@ -1064,12 +1064,22 @@
}
for (i = 0; i < options.git_am_opts.argc; i++) {
- const char *option = options.git_am_opts.argv[i];
+ const char *option = options.git_am_opts.argv[i], *p;
if (!strcmp(option, "--committer-date-is-author-date") ||
!strcmp(option, "--ignore-date") ||
!strcmp(option, "--whitespace=fix") ||
!strcmp(option, "--whitespace=strip"))
options.flags |= REBASE_FORCE;
+ else if (skip_prefix(option, "-C", &p)) {
+ while (*p)
+ if (!isdigit(*(p++)))
+ die(_("switch `C' expects a "
+ "numerical value"));
+ } else if (skip_prefix(option, "--whitespace=", &p)) {
+ if (*p && strcmp(p, "warn") && strcmp(p, "nowarn") &&
+ strcmp(p, "error") && strcmp(p, "error-all"))
+ die("Invalid whitespace option: '%s'", p);
+ }
}
if (!(options.flags & REBASE_NO_QUIET))
diff --git a/t/t3406-rebase-message.sh b/t/t3406-rebase-message.sh
index 0392e36..2c79eed 100755
--- a/t/t3406-rebase-message.sh
+++ b/t/t3406-rebase-message.sh
@@ -84,4 +84,11 @@
test_i18ngrep "invalid-ref" err
'
+test_expect_success 'error out early upon -C<n> or --whitespace=<bad>' '
+ test_must_fail git rebase -Cnot-a-number HEAD 2>err &&
+ test_i18ngrep "numerical value" err &&
+ test_must_fail git rebase --whitespace=bad HEAD 2>err &&
+ test_i18ngrep "Invalid whitespace option" err
+'
+
test_done
