summaryrefslogtreecommitdiff
path: root/builtin/bisect--helper.c
diff options
context:
space:
mode:
Diffstat (limited to 'builtin/bisect--helper.c')
-rw-r--r--builtin/bisect--helper.c160
1 files changed, 152 insertions, 8 deletions
diff --git a/builtin/bisect--helper.c b/builtin/bisect--helper.c
index f184eaeac6..28a2e6a575 100644
--- a/builtin/bisect--helper.c
+++ b/builtin/bisect--helper.c
@@ -18,10 +18,10 @@ static GIT_PATH_FUNC(git_path_bisect_log, "BISECT_LOG")
static GIT_PATH_FUNC(git_path_head_name, "head-name")
static GIT_PATH_FUNC(git_path_bisect_names, "BISECT_NAMES")
static GIT_PATH_FUNC(git_path_bisect_first_parent, "BISECT_FIRST_PARENT")
+static GIT_PATH_FUNC(git_path_bisect_run, "BISECT_RUN")
static const char * const git_bisect_helper_usage[] = {
N_("git bisect--helper --bisect-reset [<commit>]"),
- N_("git bisect--helper --bisect-next-check <good_term> <bad_term> [<term>]"),
N_("git bisect--helper --bisect-terms [--term-good | --term-old | --term-bad | --term-new]"),
N_("git bisect--helper --bisect-start [--term-{new,bad}=<term> --term-{old,good}=<term>]"
" [--no-checkout] [--first-parent] [<bad> [<good>...]] [--] [<paths>...]"),
@@ -30,6 +30,8 @@ static const char * const git_bisect_helper_usage[] = {
N_("git bisect--helper --bisect-state (good|old) [<rev>...]"),
N_("git bisect--helper --bisect-replay <filename>"),
N_("git bisect--helper --bisect-skip [(<rev>|<range>)...]"),
+ N_("git bisect--helper --bisect-visualize"),
+ N_("git bisect--helper --bisect-run <cmd>..."),
NULL
};
@@ -143,6 +145,19 @@ static int append_to_file(const char *path, const char *format, ...)
return res;
}
+static int print_file_to_stdout(const char *path)
+{
+ int fd = open(path, O_RDONLY);
+ int ret = 0;
+
+ if (fd < 0)
+ return error_errno(_("cannot open file '%s' for reading"), path);
+ if (copy_fd(fd, 1) < 0)
+ ret = error_errno(_("failed to read '%s'"), path);
+ close(fd);
+ return ret;
+}
+
static int check_term_format(const char *term, const char *orig_term)
{
int res;
@@ -1036,6 +1051,125 @@ static enum bisect_error bisect_skip(struct bisect_terms *terms, const char **ar
return res;
}
+static int bisect_visualize(struct bisect_terms *terms, const char **argv, int argc)
+{
+ struct strvec args = STRVEC_INIT;
+ int flags = RUN_COMMAND_NO_STDIN, res = 0;
+ struct strbuf sb = STRBUF_INIT;
+
+ if (bisect_next_check(terms, NULL) != 0)
+ return BISECT_FAILED;
+
+ if (!argc) {
+ if ((getenv("DISPLAY") || getenv("SESSIONNAME") || getenv("MSYSTEM") ||
+ getenv("SECURITYSESSIONID")) && exists_in_PATH("gitk")) {
+ strvec_push(&args, "gitk");
+ } else {
+ strvec_push(&args, "log");
+ flags |= RUN_GIT_CMD;
+ }
+ } else {
+ if (argv[0][0] == '-') {
+ strvec_push(&args, "log");
+ flags |= RUN_GIT_CMD;
+ } else if (strcmp(argv[0], "tig") && !starts_with(argv[0], "git"))
+ flags |= RUN_GIT_CMD;
+
+ strvec_pushv(&args, argv);
+ }
+
+ strvec_pushl(&args, "--bisect", "--", NULL);
+
+ strbuf_read_file(&sb, git_path_bisect_names(), 0);
+ sq_dequote_to_strvec(sb.buf, &args);
+ strbuf_release(&sb);
+
+ res = run_command_v_opt(args.v, flags);
+ strvec_clear(&args);
+ return res;
+}
+
+static int bisect_run(struct bisect_terms *terms, const char **argv, int argc)
+{
+ int res = BISECT_OK;
+ struct strbuf command = STRBUF_INIT;
+ struct strvec args = STRVEC_INIT;
+ struct strvec run_args = STRVEC_INIT;
+ const char *new_state;
+ int temporary_stdout_fd, saved_stdout;
+
+ if (bisect_next_check(terms, NULL))
+ return BISECT_FAILED;
+
+ if (argc)
+ sq_quote_argv(&command, argv);
+ else {
+ error(_("bisect run failed: no command provided."));
+ return BISECT_FAILED;
+ }
+
+ strvec_push(&run_args, command.buf);
+
+ while (1) {
+ strvec_clear(&args);
+
+ printf(_("running %s\n"), command.buf);
+ res = run_command_v_opt(run_args.v, RUN_USING_SHELL);
+
+ if (res < 0 || 128 <= res) {
+ error(_("bisect run failed: exit code %d from"
+ " '%s' is < 0 or >= 128"), res, command.buf);
+ strbuf_release(&command);
+ return res;
+ }
+
+ if (res == 125)
+ new_state = "skip";
+ else if (!res)
+ new_state = terms->term_good;
+ else
+ new_state = terms->term_bad;
+
+ temporary_stdout_fd = open(git_path_bisect_run(), O_CREAT | O_WRONLY | O_TRUNC, 0666);
+
+ if (temporary_stdout_fd < 0)
+ return error_errno(_("cannot open file '%s' for writing"), git_path_bisect_run());
+
+ fflush(stdout);
+ saved_stdout = dup(1);
+ dup2(temporary_stdout_fd, 1);
+
+ res = bisect_state(terms, &new_state, 1);
+
+ fflush(stdout);
+ dup2(saved_stdout, 1);
+ close(saved_stdout);
+ close(temporary_stdout_fd);
+
+ print_file_to_stdout(git_path_bisect_run());
+
+ if (res == BISECT_ONLY_SKIPPED_LEFT)
+ error(_("bisect run cannot continue any more"));
+ else if (res == BISECT_INTERNAL_SUCCESS_MERGE_BASE) {
+ printf(_("bisect run success"));
+ res = BISECT_OK;
+ } else if (res == BISECT_INTERNAL_SUCCESS_1ST_BAD_FOUND) {
+ printf(_("bisect found first bad commit"));
+ res = BISECT_OK;
+ } else if (res) {
+ error(_("bisect run failed: 'git bisect--helper --bisect-state"
+ " %s' exited with error code %d"), args.v[0], res);
+ } else {
+ continue;
+ }
+
+ strbuf_release(&command);
+ strvec_clear(&args);
+ strvec_clear(&run_args);
+ return res;
+ }
+}
+
int cmd_bisect__helper(int argc, const char **argv, const char *prefix)
{
enum {
@@ -1048,7 +1182,9 @@ int cmd_bisect__helper(int argc, const char **argv, const char *prefix)
BISECT_STATE,
BISECT_LOG,
BISECT_REPLAY,
- BISECT_SKIP
+ BISECT_SKIP,
+ BISECT_VISUALIZE,
+ BISECT_RUN,
} cmdmode = 0;
int res = 0, nolog = 0;
struct option options[] = {
@@ -1070,6 +1206,10 @@ int cmd_bisect__helper(int argc, const char **argv, const char *prefix)
N_("replay the bisection process from the given file"), BISECT_REPLAY),
OPT_CMDMODE(0, "bisect-skip", &cmdmode,
N_("skip some commits for checkout"), BISECT_SKIP),
+ OPT_CMDMODE(0, "bisect-visualize", &cmdmode,
+ N_("visualize the bisection"), BISECT_VISUALIZE),
+ OPT_CMDMODE(0, "bisect-run", &cmdmode,
+ N_("use <cmd>... to automatically bisect."), BISECT_RUN),
OPT_BOOL(0, "no-log", &nolog,
N_("no log for BISECT_WRITE")),
OPT_END()
@@ -1089,12 +1229,6 @@ int cmd_bisect__helper(int argc, const char **argv, const char *prefix)
return error(_("--bisect-reset requires either no argument or a commit"));
res = bisect_reset(argc ? argv[0] : NULL);
break;
- case BISECT_NEXT_CHECK:
- if (argc != 2 && argc != 3)
- return error(_("--bisect-next-check requires 2 or 3 arguments"));
- set_terms(&terms, argv[1], argv[0]);
- res = bisect_next_check(&terms, argc == 3 ? argv[2] : NULL);
- break;
case BISECT_TERMS:
if (argc > 1)
return error(_("--bisect-terms requires 0 or 1 argument"));
@@ -1131,6 +1265,16 @@ int cmd_bisect__helper(int argc, const char **argv, const char *prefix)
get_terms(&terms);
res = bisect_skip(&terms, argv, argc);
break;
+ case BISECT_VISUALIZE:
+ get_terms(&terms);
+ res = bisect_visualize(&terms, argv, argc);
+ break;
+ case BISECT_RUN:
+ if (!argc)
+ return error(_("bisect run failed: no command provided."));
+ get_terms(&terms);
+ res = bisect_run(&terms, argv, argc);
+ break;
default:
BUG("unknown subcommand %d", cmdmode);
}