bisect--helper: reimplement `bisect_autostart` shell function in C
Reimplement the `bisect_autostart()` shell function in C and add the
C implementation from `bisect_next()` which was previously left
uncovered.
Add `--bisect-autostart` subcommand to be called from git-bisect.sh.
Using `--bisect-autostart` subcommand is a temporary measure to port
the shell function to C so as to use the existing test suite. As more
functions are ported, this subcommand will be retired and
bisect_autostart() will be called directly by `bisect_state()`.
Change behavior of shell script that returned success when user aborted
the bisection.
Mentored-by: Lars Schneider <larsxschneider@gmail.com>
Mentored-by: Christian Couder <chriscool@tuxfamily.org>
Mentored-by: Johannes Schindelin <johannes.schindelin@gmx.de>
Signed-off-by: Pranit Bauva <pranit.bauva@gmail.com>
Signed-off-by: Tanushree Tumane <tanushreetumane@gmail.com>
Signed-off-by: Miriam Rubio <mirucam@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
diff --git a/builtin/bisect--helper.c b/builtin/bisect--helper.c
index bae09ce..45e46d4 100644
--- a/builtin/bisect--helper.c
+++ b/builtin/bisect--helper.c
@@ -29,6 +29,7 @@
N_("git bisect--helper --bisect-terms [--term-good | --term-old | --term-bad | --term-new]"),
N_("git bisect--helper --bisect-start [--term-{old,good}=<term> --term-{new,bad}=<term>]"
" [--no-checkout] [--first-parent] [<bad> [<good>...]] [--] [<paths>...]"),
+ N_("git bisect--helper --bisect-autostart"),
NULL
};
@@ -653,6 +654,38 @@
return res;
}
+static inline int file_is_not_empty(const char *path)
+{
+ return !is_empty_or_missing_file(path);
+}
+
+static int bisect_autostart(struct bisect_terms *terms)
+{
+ int res;
+ const char *yesno;
+
+ if (file_is_not_empty(git_path_bisect_start()))
+ return 0;
+
+ fprintf_ln(stderr, _("You need to start by \"git bisect "
+ "start\"\n"));
+
+ if (!isatty(STDIN_FILENO))
+ return -1;
+
+ /*
+ * TRANSLATORS: Make sure to include [Y] and [n] in your
+ * translation. The program will only accept English input
+ * at this point.
+ */
+ yesno = git_prompt(_("Do you want me to do it for you "
+ "[Y/n]? "), PROMPT_ECHO);
+ res = tolower(*yesno) == 'n' ?
+ -1 : bisect_start(terms, empty_strvec, 0);
+
+ return res;
+}
+
int cmd_bisect__helper(int argc, const char **argv, const char *prefix)
{
enum {
@@ -665,7 +698,8 @@
CHECK_AND_SET_TERMS,
BISECT_NEXT_CHECK,
BISECT_TERMS,
- BISECT_START
+ BISECT_START,
+ BISECT_AUTOSTART,
} cmdmode = 0;
int res = 0, nolog = 0;
struct option options[] = {
@@ -689,6 +723,8 @@
N_("print out the bisect terms"), BISECT_TERMS),
OPT_CMDMODE(0, "bisect-start", &cmdmode,
N_("start the bisect session"), BISECT_START),
+ OPT_CMDMODE(0, "bisect-autostart", &cmdmode,
+ N_("start the bisection if it has not yet been started"), BISECT_AUTOSTART),
OPT_BOOL(0, "no-log", &nolog,
N_("no log for BISECT_WRITE")),
OPT_END()
@@ -748,6 +784,12 @@
set_terms(&terms, "bad", "good");
res = bisect_start(&terms, argv, argc);
break;
+ case BISECT_AUTOSTART:
+ if (argc)
+ return error(_("--bisect-autostart does not accept arguments"));
+ set_terms(&terms, "bad", "good");
+ res = bisect_autostart(&terms);
+ break;
default:
BUG("unknown subcommand %d", cmdmode);
}
diff --git a/git-bisect.sh b/git-bisect.sh
index c7580e5..eefbee3 100755
--- a/git-bisect.sh
+++ b/git-bisect.sh
@@ -49,27 +49,6 @@
fi
}
-bisect_autostart() {
- test -s "$GIT_DIR/BISECT_START" || {
- gettextln "You need to start by \"git bisect start\"" >&2
- if test -t 0
- then
- # TRANSLATORS: Make sure to include [Y] and [n] in your
- # translation. The program will only accept English input
- # at this point.
- gettext "Do you want me to do it for you [Y/n]? " >&2
- read yesno
- case "$yesno" in
- [Nn]*)
- exit ;;
- esac
- bisect_start
- else
- exit 1
- fi
- }
-}
-
bisect_start() {
git bisect--helper --bisect-start $@ || exit
@@ -108,7 +87,7 @@
}
bisect_state() {
- bisect_autostart
+ git bisect--helper --bisect-autostart || exit
state=$1
git bisect--helper --check-and-set-terms $state $TERM_GOOD $TERM_BAD || exit
get_terms
@@ -149,7 +128,7 @@
bisect_next() {
case "$#" in 0) ;; *) usage ;; esac
- bisect_autostart
+ git bisect--helper --bisect-autostart || exit
git bisect--helper --bisect-next-check $TERM_GOOD $TERM_BAD $TERM_GOOD|| exit
# Perform all bisection computation, display and checkout