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authorLibravatar Junio C Hamano <gitster@pobox.com>2021-02-17 17:21:40 -0800
committerLibravatar Junio C Hamano <gitster@pobox.com>2021-02-17 17:21:40 -0800
commit0871fb9af5aa03a56c42a9257589248624d75eb8 (patch)
treea3f1502650d7ce0d708dec073410a9e7c66ec223 /builtin
parentMerge branch 'ds/commit-graph-genno-fix' (diff)
parentbisect--helper: retire `--check-and-set-terms` subcommand (diff)
downloadtgif-0871fb9af5aa03a56c42a9257589248624d75eb8.tar.xz
Merge branch 'mr/bisect-in-c-4'
Piecemeal of rewrite of "git bisect" in C continues. * mr/bisect-in-c-4: bisect--helper: retire `--check-and-set-terms` subcommand bisect--helper: reimplement `bisect_skip` shell function in C bisect--helper: retire `--bisect-auto-next` subcommand bisect--helper: use `res` instead of return in BISECT_RESET case option bisect--helper: retire `--bisect-write` subcommand bisect--helper: reimplement `bisect_replay` shell function in C bisect--helper: reimplement `bisect_log` shell function in C
Diffstat (limited to 'builtin')
-rw-r--r--builtin/bisect--helper.c183
1 files changed, 152 insertions, 31 deletions
diff --git a/builtin/bisect--helper.c b/builtin/bisect--helper.c
index 709eb713a3..d69e13335d 100644
--- a/builtin/bisect--helper.c
+++ b/builtin/bisect--helper.c
@@ -21,16 +21,15 @@ static GIT_PATH_FUNC(git_path_bisect_first_parent, "BISECT_FIRST_PARENT")
static const char * const git_bisect_helper_usage[] = {
N_("git bisect--helper --bisect-reset [<commit>]"),
- N_("git bisect--helper --bisect-write [--no-log] <state> <revision> <good_term> <bad_term>"),
- N_("git bisect--helper --bisect-check-and-set-terms <command> <good_term> <bad_term>"),
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>...]"),
N_("git bisect--helper --bisect-next"),
- N_("git bisect--helper --bisect-auto-next"),
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>)...]"),
NULL
};
@@ -904,28 +903,148 @@ static enum bisect_error bisect_state(struct bisect_terms *terms, const char **a
return bisect_auto_next(terms, NULL);
}
+static enum bisect_error bisect_log(void)
+{
+ int fd, status;
+ const char* filename = git_path_bisect_log();
+
+ if (is_empty_or_missing_file(filename))
+ return error(_("We are not bisecting."));
+
+ fd = open(filename, O_RDONLY);
+ if (fd < 0)
+ return BISECT_FAILED;
+
+ status = copy_fd(fd, STDOUT_FILENO);
+ close(fd);
+ return status ? BISECT_FAILED : BISECT_OK;
+}
+
+static int process_replay_line(struct bisect_terms *terms, struct strbuf *line)
+{
+ const char *p = line->buf + strspn(line->buf, " \t");
+ char *word_end, *rev;
+
+ if ((!skip_prefix(p, "git bisect", &p) &&
+ !skip_prefix(p, "git-bisect", &p)) || !isspace(*p))
+ return 0;
+ p += strspn(p, " \t");
+
+ word_end = (char *)p + strcspn(p, " \t");
+ rev = word_end + strspn(word_end, " \t");
+ *word_end = '\0'; /* NUL-terminate the word */
+
+ get_terms(terms);
+ if (check_and_set_terms(terms, p))
+ return -1;
+
+ if (!strcmp(p, "start")) {
+ struct strvec argv = STRVEC_INIT;
+ int res;
+ sq_dequote_to_strvec(rev, &argv);
+ res = bisect_start(terms, argv.v, argv.nr);
+ strvec_clear(&argv);
+ return res;
+ }
+
+ if (one_of(p, terms->term_good,
+ terms->term_bad, "skip", NULL))
+ return bisect_write(p, rev, terms, 0);
+
+ if (!strcmp(p, "terms")) {
+ struct strvec argv = STRVEC_INIT;
+ int res;
+ sq_dequote_to_strvec(rev, &argv);
+ res = bisect_terms(terms, argv.nr == 1 ? argv.v[0] : NULL);
+ strvec_clear(&argv);
+ return res;
+ }
+ error(_("'%s'?? what are you talking about?"), p);
+
+ return -1;
+}
+
+static enum bisect_error bisect_replay(struct bisect_terms *terms, const char *filename)
+{
+ FILE *fp = NULL;
+ enum bisect_error res = BISECT_OK;
+ struct strbuf line = STRBUF_INIT;
+
+ if (is_empty_or_missing_file(filename))
+ return error(_("cannot read file '%s' for replaying"), filename);
+
+ if (bisect_reset(NULL))
+ return BISECT_FAILED;
+
+ fp = fopen(filename, "r");
+ if (!fp)
+ return BISECT_FAILED;
+
+ while ((strbuf_getline(&line, fp) != EOF) && !res)
+ res = process_replay_line(terms, &line);
+
+ strbuf_release(&line);
+ fclose(fp);
+
+ if (res)
+ return BISECT_FAILED;
+
+ return bisect_auto_next(terms, NULL);
+}
+
+static enum bisect_error bisect_skip(struct bisect_terms *terms, const char **argv, int argc)
+{
+ int i;
+ enum bisect_error res;
+ struct strvec argv_state = STRVEC_INIT;
+
+ strvec_push(&argv_state, "skip");
+
+ for (i = 0; i < argc; i++) {
+ const char *dotdot = strstr(argv[i], "..");
+
+ if (dotdot) {
+ struct rev_info revs;
+ struct commit *commit;
+
+ init_revisions(&revs, NULL);
+ setup_revisions(2, argv + i - 1, &revs, NULL);
+
+ if (prepare_revision_walk(&revs))
+ die(_("revision walk setup failed\n"));
+ while ((commit = get_revision(&revs)) != NULL)
+ strvec_push(&argv_state,
+ oid_to_hex(&commit->object.oid));
+
+ reset_revision_walk();
+ } else {
+ strvec_push(&argv_state, argv[i]);
+ }
+ }
+ res = bisect_state(terms, argv_state.v, argv_state.nr);
+
+ strvec_clear(&argv_state);
+ return res;
+}
+
int cmd_bisect__helper(int argc, const char **argv, const char *prefix)
{
enum {
BISECT_RESET = 1,
- BISECT_WRITE,
- CHECK_AND_SET_TERMS,
BISECT_NEXT_CHECK,
BISECT_TERMS,
BISECT_START,
BISECT_AUTOSTART,
BISECT_NEXT,
- BISECT_AUTO_NEXT,
- BISECT_STATE
+ BISECT_STATE,
+ BISECT_LOG,
+ BISECT_REPLAY,
+ BISECT_SKIP
} cmdmode = 0;
int res = 0, nolog = 0;
struct option options[] = {
OPT_CMDMODE(0, "bisect-reset", &cmdmode,
N_("reset the bisection state"), BISECT_RESET),
- OPT_CMDMODE(0, "bisect-write", &cmdmode,
- N_("write out the bisection state in BISECT_LOG"), BISECT_WRITE),
- OPT_CMDMODE(0, "check-and-set-terms", &cmdmode,
- N_("check and set terms in a bisection state"), CHECK_AND_SET_TERMS),
OPT_CMDMODE(0, "bisect-next-check", &cmdmode,
N_("check whether bad or good terms exist"), BISECT_NEXT_CHECK),
OPT_CMDMODE(0, "bisect-terms", &cmdmode,
@@ -934,10 +1053,14 @@ int cmd_bisect__helper(int argc, const char **argv, const char *prefix)
N_("start the bisect session"), BISECT_START),
OPT_CMDMODE(0, "bisect-next", &cmdmode,
N_("find the next bisection commit"), BISECT_NEXT),
- OPT_CMDMODE(0, "bisect-auto-next", &cmdmode,
- N_("verify the next bisection state then checkout the next bisection commit"), BISECT_AUTO_NEXT),
OPT_CMDMODE(0, "bisect-state", &cmdmode,
N_("mark the state of ref (or refs)"), BISECT_STATE),
+ OPT_CMDMODE(0, "bisect-log", &cmdmode,
+ N_("list the bisection steps so far"), BISECT_LOG),
+ OPT_CMDMODE(0, "bisect-replay", &cmdmode,
+ 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_BOOL(0, "no-log", &nolog,
N_("no log for BISECT_WRITE")),
OPT_END()
@@ -955,18 +1078,7 @@ int cmd_bisect__helper(int argc, const char **argv, const char *prefix)
case BISECT_RESET:
if (argc > 1)
return error(_("--bisect-reset requires either no argument or a commit"));
- return !!bisect_reset(argc ? argv[0] : NULL);
- case BISECT_WRITE:
- if (argc != 4 && argc != 5)
- return error(_("--bisect-write requires either 4 or 5 arguments"));
- set_terms(&terms, argv[3], argv[2]);
- res = bisect_write(argv[0], argv[1], &terms, nolog);
- break;
- case CHECK_AND_SET_TERMS:
- if (argc != 3)
- return error(_("--check-and-set-terms requires 3 arguments"));
- set_terms(&terms, argv[2], argv[1]);
- res = check_and_set_terms(&terms, argv[0]);
+ res = bisect_reset(argc ? argv[0] : NULL);
break;
case BISECT_NEXT_CHECK:
if (argc != 2 && argc != 3)
@@ -989,17 +1101,26 @@ int cmd_bisect__helper(int argc, const char **argv, const char *prefix)
get_terms(&terms);
res = bisect_next(&terms, prefix);
break;
- case BISECT_AUTO_NEXT:
- if (argc)
- return error(_("--bisect-auto-next requires 0 arguments"));
- get_terms(&terms);
- res = bisect_auto_next(&terms, prefix);
- break;
case BISECT_STATE:
set_terms(&terms, "bad", "good");
get_terms(&terms);
res = bisect_state(&terms, argv, argc);
break;
+ case BISECT_LOG:
+ if (argc)
+ return error(_("--bisect-log requires 0 arguments"));
+ res = bisect_log();
+ break;
+ case BISECT_REPLAY:
+ if (argc != 1)
+ return error(_("no logfile given"));
+ set_terms(&terms, "bad", "good");
+ res = bisect_replay(&terms, argv[0]);
+ break;
+ case BISECT_SKIP:
+ set_terms(&terms, "bad", "good");
+ res = bisect_skip(&terms, argv, argc);
+ break;
default:
BUG("unknown subcommand %d", cmdmode);
}