From: Pranit Bauva <pranit.bauva@xxxxxxxxx> Reimplement the `bisect_replay` shell function in C and also add `--bisect-replay` subcommand to `git bisect--helper` to call it from git-bisect.sh Using `--bisect-replay` subcommand is a temporary measure to port shell function to C so as to use the existing test suite. Mentored-by: Lars Schneider <larsxschneider@xxxxxxxxx> Mentored-by: Christian Couder <chriscool@xxxxxxxxxxxxx> Mentored-by: Johannes Schindelin <Johannes.Schindelin@xxxxxx> Signed-off-by: Pranit Bauva <pranit.bauva@xxxxxxxxx> Signed-off-by: Tanushree Tumane <tanushreetumane@xxxxxxxxx> Signed-off-by: Miriam Rubio <mirucam@xxxxxxxxx> --- builtin/bisect--helper.c | 127 ++++++++++++++++++++++++++++++++++++++- git-bisect.sh | 32 +--------- 2 files changed, 127 insertions(+), 32 deletions(-) diff --git a/builtin/bisect--helper.c b/builtin/bisect--helper.c index 4795b7880c..4b4ce13b50 100644 --- a/builtin/bisect--helper.c +++ b/builtin/bisect--helper.c @@ -32,6 +32,7 @@ static const char * const git_bisect_helper_usage[] = { N_("git bisect--helper --bisect-autostart"), 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>"), NULL }; @@ -904,6 +905,121 @@ static int bisect_log(void) return status ? -1 : 0; } +static int get_next_word(const char *line, int pos, struct strbuf *word) +{ + int i, len = strlen(line), begin = 0; + + strbuf_reset(word); + for (i = pos; i < len; i++) { + if (line[i] == ' ' && begin) + return i + 1; + + if (!begin) + begin = 1; + strbuf_addch(word, line[i]); + } + + return i; +} + +static int process_line(struct bisect_terms *terms, struct strbuf *line, struct strbuf *word) +{ + int res = 0; + int pos = 0; + + while (pos < line->len) { + pos = get_next_word(line->buf, pos, word); + + if (!strcmp(word->buf, "git")) + continue; + else if (!strcmp(word->buf, "git-bisect")) + continue; + else if (!strcmp(word->buf, "bisect")) + continue; + else if (starts_with(word->buf, "#")) + break; + + get_terms(terms); + if (check_and_set_terms(terms, word->buf)) + return -1; + + if (!strcmp(word->buf, "start")) { + struct argv_array argv = ARGV_ARRAY_INIT; + int res; + sq_dequote_to_argv_array(line->buf+pos, &argv); + res = bisect_start(terms, 0, argv.argv, argv.argc); + argv_array_clear(&argv); + if (res) + return -1; + break; + } + + if (one_of(word->buf, terms->term_good, + terms->term_bad, "skip", NULL)) { + if (bisect_write(word->buf, line->buf+pos, terms, 0)) + return -1; + break; + } + + if (!strcmp(word->buf, "terms")) { + struct argv_array argv = ARGV_ARRAY_INIT; + int res; + sq_dequote_to_argv_array(line->buf+pos, &argv); + res = bisect_terms(terms, argv.argc == 1 ? argv.argv[0] : NULL); + argv_array_clear(&argv); + if (res) + return -1; + break; + } + + error(_("Replay file contains rubbish (\"%s\")"), + word->buf); + res = -1; + } + return res; +} + +static int process_replay_file(FILE *fp, struct bisect_terms *terms) +{ + struct strbuf line = STRBUF_INIT; + struct strbuf word = STRBUF_INIT; + int res = 0; + + while (strbuf_getline(&line, fp) != EOF) { + res = process_line(terms, &line, &word); + if (res) + break; + } + + strbuf_release(&line); + strbuf_release(&word); + return res; +} + +static int bisect_replay(struct bisect_terms *terms, const char *filename) +{ + FILE *fp = NULL; + int res = 0; + + if (is_empty_or_missing_file(filename)) + return error(_("cannot read file '%s' for replaying"), filename); + + if (bisect_reset(NULL)) + return -1; + + fp = fopen(filename, "r"); + if (!fp) + return -1; + + res = process_replay_file(fp, terms); + fclose(fp); + + if (res) + return -1; + + return bisect_auto_next(terms, NULL); +} + int cmd_bisect__helper(int argc, const char **argv, const char *prefix) { enum { @@ -917,7 +1033,8 @@ int cmd_bisect__helper(int argc, const char **argv, const char *prefix) BISECT_AUTO_NEXT, BISECT_AUTOSTART, BISECT_STATE, - BISECT_LOG + BISECT_LOG, + BISECT_REPLAY } cmdmode = 0; int no_checkout = 0, res = 0, nolog = 0; struct option options[] = { @@ -943,6 +1060,8 @@ int cmd_bisect__helper(int argc, const char **argv, const char *prefix) N_("mark the state of ref (or refs)"), BISECT_STATE), OPT_CMDMODE(0, "bisect-log", &cmdmode, N_("output the contents of BISECT_LOG"), BISECT_LOG), + OPT_CMDMODE(0, "bisect-replay", &cmdmode, + N_("replay the bisection process from the given file"), BISECT_REPLAY), OPT_BOOL(0, "no-checkout", &no_checkout, N_("update BISECT_HEAD instead of checking out the current commit")), OPT_BOOL(0, "no-log", &nolog, @@ -1020,6 +1139,12 @@ int cmd_bisect__helper(int argc, const char **argv, const char *prefix) 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; default: return error("BUG: unknown subcommand '%d'", cmdmode); } diff --git a/git-bisect.sh b/git-bisect.sh index 151358aeda..0555191c41 100755 --- a/git-bisect.sh +++ b/git-bisect.sh @@ -77,36 +77,6 @@ bisect_visualize() { eval '"$@"' --bisect -- $(cat "$GIT_DIR/BISECT_NAMES") } -bisect_replay () { - file="$1" - test "$#" -eq 1 || die "$(gettext "No logfile given")" - test -r "$file" || die "$(eval_gettext "cannot read \$file for replaying")" - git bisect--helper --bisect-reset || exit - while read git bisect command rev - do - test "$git $bisect" = "git bisect" || test "$git" = "git-bisect" || continue - if test "$git" = "git-bisect" - then - rev="$command" - command="$bisect" - fi - get_terms - git bisect--helper --check-and-set-terms "$command" "$TERM_GOOD" "$TERM_BAD" || exit - get_terms - case "$command" in - start) - eval "git bisect--helper --bisect-start $rev" ;; - "$TERM_GOOD"|"$TERM_BAD"|skip) - git bisect--helper --bisect-write "$command" "$rev" "$TERM_GOOD" "$TERM_BAD" || exit;; - terms) - git bisect--helper --bisect-terms $rev || exit;; - *) - die "$(gettext "?? what are you talking about?")" ;; - esac - done <"$file" - git bisect--helper --bisect-auto-next -} - bisect_run () { git bisect--helper --bisect-next-check $TERM_GOOD $TERM_BAD fail || exit @@ -202,7 +172,7 @@ case "$#" in reset) git bisect--helper --bisect-reset "$@" ;; replay) - bisect_replay "$@" ;; + git bisect--helper --bisect-replay "$@" ;; log) git bisect--helper --bisect-log ;; run) -- 2.21.1 (Apple Git-122.3)