[v4,09/16] bisect--helper: make `--bisect-state` optional

Commit Message

Johannes Schindelin June 27, 2022, 6:31 p.m. UTC

From: Johannes Schindelin <[e-mail]>

In preparation for making `git bisect` a real built-in, let's prepare
the `bisect--helper` built-in to handle `git bisect--helper good` and
`git bisect--helper bad`, i.e. do not require the `--bisect-state`
option to be passed explicitly.

Signed-off-by: Johannes Schindelin <[e-mail]>
---
 builtin/bisect--helper.c | 14 ++++++++------
 git-bisect.sh            |  2 +-
 2 files changed, 9 insertions(+), 7 deletions(-)

Patch

diff --git a/builtin/bisect--helper.c b/builtin/bisect--helper.c
index 2d6eafa2abd..1b1ce0941ff 100644
--- a/builtin/bisect--helper.c
+++ b/builtin/bisect--helper.c
@@ -26,8 +26,8 @@  static const char * const git_bisect_helper_usage[] = {
 	N_("git bisect--helper --bisect-start [--term-{new,bad}=<term> --term-{old,good}=<term>]"
 					    " [--no-checkout] [--first-parent] [<bad> [<good>...]] [--] [<paths>...]"),
 	"git bisect--helper --bisect-next",
-	N_("git bisect--helper --bisect-state (bad|new) [<rev>]"),
-	N_("git bisect--helper --bisect-state (good|old) [<rev>...]"),
+	N_("git bisect--helper [--bisect-state] (bad|new) [<rev>]"),
+	N_("git bisect--helper [--bisect-state] (good|old) [<rev>...]"),
 	N_("git bisect--helper --bisect-replay <filename>"),
 	N_("git bisect--helper --bisect-skip [(<rev>|<range>)...]"),
 	"git bisect--helper --bisect-visualize",
@@ -1320,10 +1320,7 @@  int cmd_bisect__helper(int argc, const char **argv, const char *prefix)
 			     git_bisect_helper_usage,
 			     PARSE_OPT_KEEP_DASHDASH | PARSE_OPT_KEEP_UNKNOWN);
 
-	if (!cmdmode)
-		usage_with_options(git_bisect_helper_usage, options);
-
-	switch (cmdmode) {
+	switch (cmdmode ? cmdmode : BISECT_STATE) {
 	case BISECT_START:
 		set_terms(&terms, "bad", "good");
 		res = bisect_start(&terms, argv, argc);
@@ -1331,6 +1328,11 @@  int cmd_bisect__helper(int argc, const char **argv, const char *prefix)
 	case BISECT_STATE:
 		set_terms(&terms, "bad", "good");
 		get_terms(&terms);
+		if (!cmdmode &&
+		    (!argc || check_and_set_terms(&terms, argv[0]))) {
+			char *msg = xstrfmt(_("unknown command: '%s'"), argv[0]);
+			usage_msg_opt(msg, git_bisect_helper_usage, options);
+		}
 		res = bisect_state(&terms, argv, argc);
 		break;
 	case BISECT_TERMS:
diff --git a/git-bisect.sh b/git-bisect.sh
index 405cf76f2a3..fbf56649d7d 100755
--- a/git-bisect.sh
+++ b/git-bisect.sh
@@ -60,7 +60,7 @@  case "$#" in
 	start)
 		git bisect--helper --bisect-start "$@" ;;
 	bad|good|new|old|"$TERM_BAD"|"$TERM_GOOD")
-		git bisect--helper --bisect-state "$cmd" "$@" ;;
+		git bisect--helper "$cmd" "$@" ;;
 	skip)
 		git bisect--helper --bisect-skip "$@" || exit;;
 	next)