| /* |
| * Builtin "git log" and related commands (show, whatchanged) |
| * |
| * (C) Copyright 2006 Linus Torvalds |
| * 2006 Junio Hamano |
| */ |
| #include "cache.h" |
| #include "color.h" |
| #include "commit.h" |
| #include "diff.h" |
| #include "revision.h" |
| #include "log-tree.h" |
| #include "builtin.h" |
| #include "tag.h" |
| #include "reflog-walk.h" |
| #include "patch-ids.h" |
| #include "run-command.h" |
| #include "shortlog.h" |
| #include "remote.h" |
| #include "string-list.h" |
| #include "parse-options.h" |
| |
| /* Set a default date-time format for git log ("log.date" config variable) */ |
| static const char *default_date_mode = NULL; |
| |
| static int default_show_root = 1; |
| static const char *fmt_patch_subject_prefix = "PATCH"; |
| static const char *fmt_pretty; |
| |
| static const char * const builtin_log_usage = |
| "git log [<options>] [<since>..<until>] [[--] <path>...]\n" |
| " or: git show [options] <object>..."; |
| |
| static void cmd_log_init(int argc, const char **argv, const char *prefix, |
| struct rev_info *rev) |
| { |
| int i; |
| int decoration_style = 0; |
| |
| rev->abbrev = DEFAULT_ABBREV; |
| rev->commit_format = CMIT_FMT_DEFAULT; |
| if (fmt_pretty) |
| get_commit_format(fmt_pretty, rev); |
| rev->verbose_header = 1; |
| DIFF_OPT_SET(&rev->diffopt, RECURSIVE); |
| rev->show_root_diff = default_show_root; |
| rev->subject_prefix = fmt_patch_subject_prefix; |
| DIFF_OPT_SET(&rev->diffopt, ALLOW_TEXTCONV); |
| |
| if (default_date_mode) |
| rev->date_mode = parse_date_format(default_date_mode); |
| |
| argc = setup_revisions(argc, argv, rev, "HEAD"); |
| |
| if (rev->diffopt.pickaxe || rev->diffopt.filter) |
| rev->always_show_header = 0; |
| if (DIFF_OPT_TST(&rev->diffopt, FOLLOW_RENAMES)) { |
| rev->always_show_header = 0; |
| if (rev->diffopt.nr_paths != 1) |
| usage("git logs can only follow renames on one pathname at a time"); |
| } |
| for (i = 1; i < argc; i++) { |
| const char *arg = argv[i]; |
| if (!strcmp(arg, "--decorate")) { |
| decoration_style = DECORATE_SHORT_REFS; |
| } else if (!prefixcmp(arg, "--decorate=")) { |
| const char *v = skip_prefix(arg, "--decorate="); |
| if (!strcmp(v, "full")) |
| decoration_style = DECORATE_FULL_REFS; |
| else if (!strcmp(v, "short")) |
| decoration_style = DECORATE_SHORT_REFS; |
| else |
| die("invalid --decorate option: %s", arg); |
| } else if (!strcmp(arg, "--source")) { |
| rev->show_source = 1; |
| } else if (!strcmp(arg, "-h")) { |
| usage(builtin_log_usage); |
| } else |
| die("unrecognized argument: %s", arg); |
| } |
| if (decoration_style) { |
| rev->show_decorations = 1; |
| load_ref_decorations(decoration_style); |
| } |
| } |
| |
| /* |
| * This gives a rough estimate for how many commits we |
| * will print out in the list. |
| */ |
| static int estimate_commit_count(struct rev_info *rev, struct commit_list *list) |
| { |
| int n = 0; |
| |
| while (list) { |
| struct commit *commit = list->item; |
| unsigned int flags = commit->object.flags; |
| list = list->next; |
| if (!(flags & (TREESAME | UNINTERESTING))) |
| n++; |
| } |
| return n; |
| } |
| |
| static void show_early_header(struct rev_info *rev, const char *stage, int nr) |
| { |
| if (rev->shown_one) { |
| rev->shown_one = 0; |
| if (rev->commit_format != CMIT_FMT_ONELINE) |
| putchar(rev->diffopt.line_termination); |
| } |
| printf("Final output: %d %s\n", nr, stage); |
| } |
| |
| static struct itimerval early_output_timer; |
| |
| static void log_show_early(struct rev_info *revs, struct commit_list *list) |
| { |
| int i = revs->early_output; |
| int show_header = 1; |
| |
| sort_in_topological_order(&list, revs->lifo); |
| while (list && i) { |
| struct commit *commit = list->item; |
| switch (simplify_commit(revs, commit)) { |
| case commit_show: |
| if (show_header) { |
| int n = estimate_commit_count(revs, list); |
| show_early_header(revs, "incomplete", n); |
| show_header = 0; |
| } |
| log_tree_commit(revs, commit); |
| i--; |
| break; |
| case commit_ignore: |
| break; |
| case commit_error: |
| return; |
| } |
| list = list->next; |
| } |
| |
| /* Did we already get enough commits for the early output? */ |
| if (!i) |
| return; |
| |
| /* |
| * ..if no, then repeat it twice a second until we |
| * do. |
| * |
| * NOTE! We don't use "it_interval", because if the |
| * reader isn't listening, we want our output to be |
| * throttled by the writing, and not have the timer |
| * trigger every second even if we're blocked on a |
| * reader! |
| */ |
| early_output_timer.it_value.tv_sec = 0; |
| early_output_timer.it_value.tv_usec = 500000; |
| setitimer(ITIMER_REAL, &early_output_timer, NULL); |
| } |
| |
| static void early_output(int signal) |
| { |
| show_early_output = log_show_early; |
| } |
| |
| static void setup_early_output(struct rev_info *rev) |
| { |
| struct sigaction sa; |
| |
| /* |
| * Set up the signal handler, minimally intrusively: |
| * we only set a single volatile integer word (not |
| * using sigatomic_t - trying to avoid unnecessary |
| * system dependencies and headers), and using |
| * SA_RESTART. |
| */ |
| memset(&sa, 0, sizeof(sa)); |
| sa.sa_handler = early_output; |
| sigemptyset(&sa.sa_mask); |
| sa.sa_flags = SA_RESTART; |
| sigaction(SIGALRM, &sa, NULL); |
| |
| /* |
| * If we can get the whole output in less than a |
| * tenth of a second, don't even bother doing the |
| * early-output thing.. |
| * |
| * This is a one-time-only trigger. |
| */ |
| early_output_timer.it_value.tv_sec = 0; |
| early_output_timer.it_value.tv_usec = 100000; |
| setitimer(ITIMER_REAL, &early_output_timer, NULL); |
| } |
| |
| static void finish_early_output(struct rev_info *rev) |
| { |
| int n = estimate_commit_count(rev, rev->commits); |
| signal(SIGALRM, SIG_IGN); |
| show_early_header(rev, "done", n); |
| } |
| |
| static int cmd_log_walk(struct rev_info *rev) |
| { |
| struct commit *commit; |
| |
| if (rev->early_output) |
| setup_early_output(rev); |
| |
| if (prepare_revision_walk(rev)) |
| die("revision walk setup failed"); |
| |
| if (rev->early_output) |
| finish_early_output(rev); |
| |
| /* |
| * For --check and --exit-code, the exit code is based on CHECK_FAILED |
| * and HAS_CHANGES being accumulated in rev->diffopt, so be careful to |
| * retain that state information if replacing rev->diffopt in this loop |
| */ |
| while ((commit = get_revision(rev)) != NULL) { |
| log_tree_commit(rev, commit); |
| if (!rev->reflog_info) { |
| /* we allow cycles in reflog ancestry */ |
| free(commit->buffer); |
| commit->buffer = NULL; |
| } |
| free_commit_list(commit->parents); |
| commit->parents = NULL; |
| } |
| if (rev->diffopt.output_format & DIFF_FORMAT_CHECKDIFF && |
| DIFF_OPT_TST(&rev->diffopt, CHECK_FAILED)) { |
| return 02; |
| } |
| return diff_result_code(&rev->diffopt, 0); |
| } |
| |
| static int git_log_config(const char *var, const char *value, void *cb) |
| { |
| if (!strcmp(var, "format.pretty")) |
| return git_config_string(&fmt_pretty, var, value); |
| if (!strcmp(var, "format.subjectprefix")) |
| return git_config_string(&fmt_patch_subject_prefix, var, value); |
| if (!strcmp(var, "log.date")) |
| return git_config_string(&default_date_mode, var, value); |
| if (!strcmp(var, "log.showroot")) { |
| default_show_root = git_config_bool(var, value); |
| return 0; |
| } |
| return git_diff_ui_config(var, value, cb); |
| } |
| |
| int cmd_whatchanged(int argc, const char **argv, const char *prefix) |
| { |
| struct rev_info rev; |
| |
| git_config(git_log_config, NULL); |
| |
| if (diff_use_color_default == -1) |
| diff_use_color_default = git_use_color_default; |
| |
| init_revisions(&rev, prefix); |
| rev.diff = 1; |
| rev.simplify_history = 0; |
| cmd_log_init(argc, argv, prefix, &rev); |
| if (!rev.diffopt.output_format) |
| rev.diffopt.output_format = DIFF_FORMAT_RAW; |
| return cmd_log_walk(&rev); |
| } |
| |
| static void show_tagger(char *buf, int len, struct rev_info *rev) |
| { |
| struct strbuf out = STRBUF_INIT; |
| |
| pp_user_info("Tagger", rev->commit_format, &out, buf, rev->date_mode, |
| git_log_output_encoding ? |
| git_log_output_encoding: git_commit_encoding); |
| printf("%s", out.buf); |
| strbuf_release(&out); |
| } |
| |
| static int show_object(const unsigned char *sha1, int show_tag_object, |
| struct rev_info *rev) |
| { |
| unsigned long size; |
| enum object_type type; |
| char *buf = read_sha1_file(sha1, &type, &size); |
| int offset = 0; |
| |
| if (!buf) |
| return error("Could not read object %s", sha1_to_hex(sha1)); |
| |
| if (show_tag_object) |
| while (offset < size && buf[offset] != '\n') { |
| int new_offset = offset + 1; |
| while (new_offset < size && buf[new_offset++] != '\n') |
| ; /* do nothing */ |
| if (!prefixcmp(buf + offset, "tagger ")) |
| show_tagger(buf + offset + 7, |
| new_offset - offset - 7, rev); |
| offset = new_offset; |
| } |
| |
| if (offset < size) |
| fwrite(buf + offset, size - offset, 1, stdout); |
| free(buf); |
| return 0; |
| } |
| |
| static int show_tree_object(const unsigned char *sha1, |
| const char *base, int baselen, |
| const char *pathname, unsigned mode, int stage, void *context) |
| { |
| printf("%s%s\n", pathname, S_ISDIR(mode) ? "/" : ""); |
| return 0; |
| } |
| |
| int cmd_show(int argc, const char **argv, const char *prefix) |
| { |
| struct rev_info rev; |
| struct object_array_entry *objects; |
| int i, count, ret = 0; |
| |
| git_config(git_log_config, NULL); |
| |
| if (diff_use_color_default == -1) |
| diff_use_color_default = git_use_color_default; |
| |
| init_revisions(&rev, prefix); |
| rev.diff = 1; |
| rev.combine_merges = 1; |
| rev.dense_combined_merges = 1; |
| rev.always_show_header = 1; |
| rev.ignore_merges = 0; |
| rev.no_walk = 1; |
| cmd_log_init(argc, argv, prefix, &rev); |
| |
| count = rev.pending.nr; |
| objects = rev.pending.objects; |
| for (i = 0; i < count && !ret; i++) { |
| struct object *o = objects[i].item; |
| const char *name = objects[i].name; |
| switch (o->type) { |
| case OBJ_BLOB: |
| ret = show_object(o->sha1, 0, NULL); |
| break; |
| case OBJ_TAG: { |
| struct tag *t = (struct tag *)o; |
| |
| if (rev.shown_one) |
| putchar('\n'); |
| printf("%stag %s%s\n", |
| diff_get_color_opt(&rev.diffopt, DIFF_COMMIT), |
| t->tag, |
| diff_get_color_opt(&rev.diffopt, DIFF_RESET)); |
| ret = show_object(o->sha1, 1, &rev); |
| rev.shown_one = 1; |
| if (ret) |
| break; |
| o = parse_object(t->tagged->sha1); |
| if (!o) |
| ret = error("Could not read object %s", |
| sha1_to_hex(t->tagged->sha1)); |
| objects[i].item = o; |
| i--; |
| break; |
| } |
| case OBJ_TREE: |
| if (rev.shown_one) |
| putchar('\n'); |
| printf("%stree %s%s\n\n", |
| diff_get_color_opt(&rev.diffopt, DIFF_COMMIT), |
| name, |
| diff_get_color_opt(&rev.diffopt, DIFF_RESET)); |
| read_tree_recursive((struct tree *)o, "", 0, 0, NULL, |
| show_tree_object, NULL); |
| rev.shown_one = 1; |
| break; |
| case OBJ_COMMIT: |
| rev.pending.nr = rev.pending.alloc = 0; |
| rev.pending.objects = NULL; |
| add_object_array(o, name, &rev.pending); |
| ret = cmd_log_walk(&rev); |
| break; |
| default: |
| ret = error("Unknown type: %d", o->type); |
| } |
| } |
| free(objects); |
| return ret; |
| } |
| |
| /* |
| * This is equivalent to "git log -g --abbrev-commit --pretty=oneline" |
| */ |
| int cmd_log_reflog(int argc, const char **argv, const char *prefix) |
| { |
| struct rev_info rev; |
| |
| git_config(git_log_config, NULL); |
| |
| if (diff_use_color_default == -1) |
| diff_use_color_default = git_use_color_default; |
| |
| init_revisions(&rev, prefix); |
| init_reflog_walk(&rev.reflog_info); |
| rev.abbrev_commit = 1; |
| rev.verbose_header = 1; |
| cmd_log_init(argc, argv, prefix, &rev); |
| |
| /* |
| * This means that we override whatever commit format the user gave |
| * on the cmd line. Sad, but cmd_log_init() currently doesn't |
| * allow us to set a different default. |
| */ |
| rev.commit_format = CMIT_FMT_ONELINE; |
| rev.use_terminator = 1; |
| rev.always_show_header = 1; |
| |
| /* |
| * We get called through "git reflog", so unlike the other log |
| * routines, we need to set up our pager manually.. |
| */ |
| setup_pager(); |
| |
| return cmd_log_walk(&rev); |
| } |
| |
| int cmd_log(int argc, const char **argv, const char *prefix) |
| { |
| struct rev_info rev; |
| |
| git_config(git_log_config, NULL); |
| |
| if (diff_use_color_default == -1) |
| diff_use_color_default = git_use_color_default; |
| |
| init_revisions(&rev, prefix); |
| rev.always_show_header = 1; |
| cmd_log_init(argc, argv, prefix, &rev); |
| return cmd_log_walk(&rev); |
| } |
| |
| /* format-patch */ |
| |
| static const char *fmt_patch_suffix = ".patch"; |
| static int numbered = 0; |
| static int auto_number = 1; |
| |
| static char *default_attach = NULL; |
| |
| static char **extra_hdr; |
| static int extra_hdr_nr; |
| static int extra_hdr_alloc; |
| |
| static char **extra_to; |
| static int extra_to_nr; |
| static int extra_to_alloc; |
| |
| static char **extra_cc; |
| static int extra_cc_nr; |
| static int extra_cc_alloc; |
| |
| static void add_header(const char *value) |
| { |
| int len = strlen(value); |
| while (len && value[len - 1] == '\n') |
| len--; |
| if (!strncasecmp(value, "to: ", 4)) { |
| ALLOC_GROW(extra_to, extra_to_nr + 1, extra_to_alloc); |
| extra_to[extra_to_nr++] = xstrndup(value + 4, len - 4); |
| return; |
| } |
| if (!strncasecmp(value, "cc: ", 4)) { |
| ALLOC_GROW(extra_cc, extra_cc_nr + 1, extra_cc_alloc); |
| extra_cc[extra_cc_nr++] = xstrndup(value + 4, len - 4); |
| return; |
| } |
| ALLOC_GROW(extra_hdr, extra_hdr_nr + 1, extra_hdr_alloc); |
| extra_hdr[extra_hdr_nr++] = xstrndup(value, len); |
| } |
| |
| #define THREAD_SHALLOW 1 |
| #define THREAD_DEEP 2 |
| static int thread = 0; |
| static int do_signoff = 0; |
| |
| static int git_format_config(const char *var, const char *value, void *cb) |
| { |
| if (!strcmp(var, "format.headers")) { |
| if (!value) |
| die("format.headers without value"); |
| add_header(value); |
| return 0; |
| } |
| if (!strcmp(var, "format.suffix")) |
| return git_config_string(&fmt_patch_suffix, var, value); |
| if (!strcmp(var, "format.cc")) { |
| if (!value) |
| return config_error_nonbool(var); |
| ALLOC_GROW(extra_cc, extra_cc_nr + 1, extra_cc_alloc); |
| extra_cc[extra_cc_nr++] = xstrdup(value); |
| return 0; |
| } |
| if (!strcmp(var, "diff.color") || !strcmp(var, "color.diff")) { |
| return 0; |
| } |
| if (!strcmp(var, "format.numbered")) { |
| if (value && !strcasecmp(value, "auto")) { |
| auto_number = 1; |
| return 0; |
| } |
| numbered = git_config_bool(var, value); |
| auto_number = auto_number && numbered; |
| return 0; |
| } |
| if (!strcmp(var, "format.attach")) { |
| if (value && *value) |
| default_attach = xstrdup(value); |
| else |
| default_attach = xstrdup(git_version_string); |
| return 0; |
| } |
| if (!strcmp(var, "format.thread")) { |
| if (value && !strcasecmp(value, "deep")) { |
| thread = THREAD_DEEP; |
| return 0; |
| } |
| if (value && !strcasecmp(value, "shallow")) { |
| thread = THREAD_SHALLOW; |
| return 0; |
| } |
| thread = git_config_bool(var, value) && THREAD_SHALLOW; |
| return 0; |
| } |
| if (!strcmp(var, "format.signoff")) { |
| do_signoff = git_config_bool(var, value); |
| return 0; |
| } |
| |
| return git_log_config(var, value, cb); |
| } |
| |
| static FILE *realstdout = NULL; |
| static const char *output_directory = NULL; |
| static int outdir_offset; |
| |
| static int reopen_stdout(struct commit *commit, struct rev_info *rev) |
| { |
| struct strbuf filename = STRBUF_INIT; |
| int suffix_len = strlen(fmt_patch_suffix) + 1; |
| |
| if (output_directory) { |
| strbuf_addstr(&filename, output_directory); |
| if (filename.len >= |
| PATH_MAX - FORMAT_PATCH_NAME_MAX - suffix_len) |
| return error("name of output directory is too long"); |
| if (filename.buf[filename.len - 1] != '/') |
| strbuf_addch(&filename, '/'); |
| } |
| |
| get_patch_filename(commit, rev->nr, fmt_patch_suffix, &filename); |
| |
| if (!DIFF_OPT_TST(&rev->diffopt, QUIET)) |
| fprintf(realstdout, "%s\n", filename.buf + outdir_offset); |
| |
| if (freopen(filename.buf, "w", stdout) == NULL) |
| return error("Cannot open patch file %s", filename.buf); |
| |
| strbuf_release(&filename); |
| return 0; |
| } |
| |
| static void get_patch_ids(struct rev_info *rev, struct patch_ids *ids, const char *prefix) |
| { |
| struct rev_info check_rev; |
| struct commit *commit; |
| struct object *o1, *o2; |
| unsigned flags1, flags2; |
| |
| if (rev->pending.nr != 2) |
| die("Need exactly one range."); |
| |
| o1 = rev->pending.objects[0].item; |
| flags1 = o1->flags; |
| o2 = rev->pending.objects[1].item; |
| flags2 = o2->flags; |
| |
| if ((flags1 & UNINTERESTING) == (flags2 & UNINTERESTING)) |
| die("Not a range."); |
| |
| init_patch_ids(ids); |
| |
| /* given a range a..b get all patch ids for b..a */ |
| init_revisions(&check_rev, prefix); |
| o1->flags ^= UNINTERESTING; |
| o2->flags ^= UNINTERESTING; |
| add_pending_object(&check_rev, o1, "o1"); |
| add_pending_object(&check_rev, o2, "o2"); |
| if (prepare_revision_walk(&check_rev)) |
| die("revision walk setup failed"); |
| |
| while ((commit = get_revision(&check_rev)) != NULL) { |
| /* ignore merges */ |
| if (commit->parents && commit->parents->next) |
| continue; |
| |
| add_commit_patch_id(commit, ids); |
| } |
| |
| /* reset for next revision walk */ |
| clear_commit_marks((struct commit *)o1, |
| SEEN | UNINTERESTING | SHOWN | ADDED); |
| clear_commit_marks((struct commit *)o2, |
| SEEN | UNINTERESTING | SHOWN | ADDED); |
| o1->flags = flags1; |
| o2->flags = flags2; |
| } |
| |
| static void gen_message_id(struct rev_info *info, char *base) |
| { |
| const char *committer = git_committer_info(IDENT_WARN_ON_NO_NAME); |
| const char *email_start = strrchr(committer, '<'); |
| const char *email_end = strrchr(committer, '>'); |
| struct strbuf buf = STRBUF_INIT; |
| if (!email_start || !email_end || email_start > email_end - 1) |
| die("Could not extract email from committer identity."); |
| strbuf_addf(&buf, "%s.%lu.git.%.*s", base, |
| (unsigned long) time(NULL), |
| (int)(email_end - email_start - 1), email_start + 1); |
| info->message_id = strbuf_detach(&buf, NULL); |
| } |
| |
| static void make_cover_letter(struct rev_info *rev, int use_stdout, |
| int numbered, int numbered_files, |
| struct commit *origin, |
| int nr, struct commit **list, struct commit *head) |
| { |
| const char *committer; |
| const char *subject_start = NULL; |
| const char *body = "*** SUBJECT HERE ***\n\n*** BLURB HERE ***\n"; |
| const char *msg; |
| const char *extra_headers = rev->extra_headers; |
| struct shortlog log; |
| struct strbuf sb = STRBUF_INIT; |
| int i; |
| const char *encoding = "UTF-8"; |
| struct diff_options opts; |
| int need_8bit_cte = 0; |
| struct commit *commit = NULL; |
| |
| if (rev->commit_format != CMIT_FMT_EMAIL) |
| die("Cover letter needs email format"); |
| |
| committer = git_committer_info(0); |
| |
| if (!numbered_files) { |
| /* |
| * We fake a commit for the cover letter so we get the filename |
| * desired. |
| */ |
| commit = xcalloc(1, sizeof(*commit)); |
| commit->buffer = xmalloc(400); |
| snprintf(commit->buffer, 400, |
| "tree 0000000000000000000000000000000000000000\n" |
| "parent %s\n" |
| "author %s\n" |
| "committer %s\n\n" |
| "cover letter\n", |
| sha1_to_hex(head->object.sha1), committer, committer); |
| } |
| |
| if (!use_stdout && reopen_stdout(commit, rev)) |
| return; |
| |
| if (commit) { |
| |
| free(commit->buffer); |
| free(commit); |
| } |
| |
| log_write_email_headers(rev, head, &subject_start, &extra_headers, |
| &need_8bit_cte); |
| |
| for (i = 0; !need_8bit_cte && i < nr; i++) |
| if (has_non_ascii(list[i]->buffer)) |
| need_8bit_cte = 1; |
| |
| msg = body; |
| pp_user_info(NULL, CMIT_FMT_EMAIL, &sb, committer, DATE_RFC2822, |
| encoding); |
| pp_title_line(CMIT_FMT_EMAIL, &msg, &sb, subject_start, extra_headers, |
| encoding, need_8bit_cte); |
| pp_remainder(CMIT_FMT_EMAIL, &msg, &sb, 0); |
| printf("%s\n", sb.buf); |
| |
| strbuf_release(&sb); |
| |
| shortlog_init(&log); |
| log.wrap_lines = 1; |
| log.wrap = 72; |
| log.in1 = 2; |
| log.in2 = 4; |
| for (i = 0; i < nr; i++) |
| shortlog_add_commit(&log, list[i]); |
| |
| shortlog_output(&log); |
| |
| /* |
| * We can only do diffstat with a unique reference point |
| */ |
| if (!origin) |
| return; |
| |
| memcpy(&opts, &rev->diffopt, sizeof(opts)); |
| opts.output_format = DIFF_FORMAT_SUMMARY | DIFF_FORMAT_DIFFSTAT; |
| |
| diff_setup_done(&opts); |
| |
| diff_tree_sha1(origin->tree->object.sha1, |
| head->tree->object.sha1, |
| "", &opts); |
| diffcore_std(&opts); |
| diff_flush(&opts); |
| |
| printf("\n"); |
| } |
| |
| static const char *clean_message_id(const char *msg_id) |
| { |
| char ch; |
| const char *a, *z, *m; |
| |
| m = msg_id; |
| while ((ch = *m) && (isspace(ch) || (ch == '<'))) |
| m++; |
| a = m; |
| z = NULL; |
| while ((ch = *m)) { |
| if (!isspace(ch) && (ch != '>')) |
| z = m; |
| m++; |
| } |
| if (!z) |
| die("insane in-reply-to: %s", msg_id); |
| if (++z == m) |
| return a; |
| return xmemdupz(a, z - a); |
| } |
| |
| static const char *set_outdir(const char *prefix, const char *output_directory) |
| { |
| if (output_directory && is_absolute_path(output_directory)) |
| return output_directory; |
| |
| if (!prefix || !*prefix) { |
| if (output_directory) |
| return output_directory; |
| /* The user did not explicitly ask for "./" */ |
| outdir_offset = 2; |
| return "./"; |
| } |
| |
| outdir_offset = strlen(prefix); |
| if (!output_directory) |
| return prefix; |
| |
| return xstrdup(prefix_filename(prefix, outdir_offset, |
| output_directory)); |
| } |
| |
| static const char * const builtin_format_patch_usage[] = { |
| "git format-patch [options] [<since> | <revision range>]", |
| NULL |
| }; |
| |
| static int keep_subject = 0; |
| |
| static int keep_callback(const struct option *opt, const char *arg, int unset) |
| { |
| ((struct rev_info *)opt->value)->total = -1; |
| keep_subject = 1; |
| return 0; |
| } |
| |
| static int subject_prefix = 0; |
| |
| static int subject_prefix_callback(const struct option *opt, const char *arg, |
| int unset) |
| { |
| subject_prefix = 1; |
| ((struct rev_info *)opt->value)->subject_prefix = arg; |
| return 0; |
| } |
| |
| static int numbered_cmdline_opt = 0; |
| |
| static int numbered_callback(const struct option *opt, const char *arg, |
| int unset) |
| { |
| *(int *)opt->value = numbered_cmdline_opt = unset ? 0 : 1; |
| if (unset) |
| auto_number = 0; |
| return 0; |
| } |
| |
| static int no_numbered_callback(const struct option *opt, const char *arg, |
| int unset) |
| { |
| return numbered_callback(opt, arg, 1); |
| } |
| |
| static int output_directory_callback(const struct option *opt, const char *arg, |
| int unset) |
| { |
| const char **dir = (const char **)opt->value; |
| if (*dir) |
| die("Two output directories?"); |
| *dir = arg; |
| return 0; |
| } |
| |
| static int thread_callback(const struct option *opt, const char *arg, int unset) |
| { |
| int *thread = (int *)opt->value; |
| if (unset) |
| *thread = 0; |
| else if (!arg || !strcmp(arg, "shallow")) |
| *thread = THREAD_SHALLOW; |
| else if (!strcmp(arg, "deep")) |
| *thread = THREAD_DEEP; |
| else |
| return 1; |
| return 0; |
| } |
| |
| static int attach_callback(const struct option *opt, const char *arg, int unset) |
| { |
| struct rev_info *rev = (struct rev_info *)opt->value; |
| if (unset) |
| rev->mime_boundary = NULL; |
| else if (arg) |
| rev->mime_boundary = arg; |
| else |
| rev->mime_boundary = git_version_string; |
| rev->no_inline = unset ? 0 : 1; |
| return 0; |
| } |
| |
| static int inline_callback(const struct option *opt, const char *arg, int unset) |
| { |
| struct rev_info *rev = (struct rev_info *)opt->value; |
| if (unset) |
| rev->mime_boundary = NULL; |
| else if (arg) |
| rev->mime_boundary = arg; |
| else |
| rev->mime_boundary = git_version_string; |
| rev->no_inline = 0; |
| return 0; |
| } |
| |
| static int header_callback(const struct option *opt, const char *arg, int unset) |
| { |
| add_header(arg); |
| return 0; |
| } |
| |
| static int cc_callback(const struct option *opt, const char *arg, int unset) |
| { |
| ALLOC_GROW(extra_cc, extra_cc_nr + 1, extra_cc_alloc); |
| extra_cc[extra_cc_nr++] = xstrdup(arg); |
| return 0; |
| } |
| |
| int cmd_format_patch(int argc, const char **argv, const char *prefix) |
| { |
| struct commit *commit; |
| struct commit **list = NULL; |
| struct rev_info rev; |
| int nr = 0, total, i; |
| int use_stdout = 0; |
| int start_number = -1; |
| int numbered_files = 0; /* _just_ numbers */ |
| int ignore_if_in_upstream = 0; |
| int cover_letter = 0; |
| int boundary_count = 0; |
| int no_binary_diff = 0; |
| struct commit *origin = NULL, *head = NULL; |
| const char *in_reply_to = NULL; |
| struct patch_ids ids; |
| char *add_signoff = NULL; |
| struct strbuf buf = STRBUF_INIT; |
| const struct option builtin_format_patch_options[] = { |
| { OPTION_CALLBACK, 'n', "numbered", &numbered, NULL, |
| "use [PATCH n/m] even with a single patch", |
| PARSE_OPT_NOARG, numbered_callback }, |
| { OPTION_CALLBACK, 'N', "no-numbered", &numbered, NULL, |
| "use [PATCH] even with multiple patches", |
| PARSE_OPT_NOARG, no_numbered_callback }, |
| OPT_BOOLEAN('s', "signoff", &do_signoff, "add Signed-off-by:"), |
| OPT_BOOLEAN(0, "stdout", &use_stdout, |
| "print patches to standard out"), |
| OPT_BOOLEAN(0, "cover-letter", &cover_letter, |
| "generate a cover letter"), |
| OPT_BOOLEAN(0, "numbered-files", &numbered_files, |
| "use simple number sequence for output file names"), |
| OPT_STRING(0, "suffix", &fmt_patch_suffix, "sfx", |
| "use <sfx> instead of '.patch'"), |
| OPT_INTEGER(0, "start-number", &start_number, |
| "start numbering patches at <n> instead of 1"), |
| { OPTION_CALLBACK, 0, "subject-prefix", &rev, "prefix", |
| "Use [<prefix>] instead of [PATCH]", |
| PARSE_OPT_NONEG, subject_prefix_callback }, |
| { OPTION_CALLBACK, 'o', "output-directory", &output_directory, |
| "dir", "store resulting files in <dir>", |
| PARSE_OPT_NONEG, output_directory_callback }, |
| { OPTION_CALLBACK, 'k', "keep-subject", &rev, NULL, |
| "don't strip/add [PATCH]", |
| PARSE_OPT_NOARG | PARSE_OPT_NONEG, keep_callback }, |
| OPT_BOOLEAN(0, "no-binary", &no_binary_diff, |
| "don't output binary diffs"), |
| OPT_BOOLEAN(0, "ignore-if-in-upstream", &ignore_if_in_upstream, |
| "don't include a patch matching a commit upstream"), |
| OPT_GROUP("Messaging"), |
| { OPTION_CALLBACK, 0, "add-header", NULL, "header", |
| "add email header", PARSE_OPT_NONEG, |
| header_callback }, |
| { OPTION_CALLBACK, 0, "cc", NULL, "email", "add Cc: header", |
| PARSE_OPT_NONEG, cc_callback }, |
| OPT_STRING(0, "in-reply-to", &in_reply_to, "message-id", |
| "make first mail a reply to <message-id>"), |
| { OPTION_CALLBACK, 0, "attach", &rev, "boundary", |
| "attach the patch", PARSE_OPT_OPTARG, |
| attach_callback }, |
| { OPTION_CALLBACK, 0, "inline", &rev, "boundary", |
| "inline the patch", |
| PARSE_OPT_OPTARG | PARSE_OPT_NONEG, |
| inline_callback }, |
| { OPTION_CALLBACK, 0, "thread", &thread, "style", |
| "enable message threading, styles: shallow, deep", |
| PARSE_OPT_OPTARG, thread_callback }, |
| OPT_END() |
| }; |
| |
| git_config(git_format_config, NULL); |
| init_revisions(&rev, prefix); |
| rev.commit_format = CMIT_FMT_EMAIL; |
| rev.verbose_header = 1; |
| rev.diff = 1; |
| rev.combine_merges = 0; |
| rev.ignore_merges = 1; |
| DIFF_OPT_SET(&rev.diffopt, RECURSIVE); |
| |
| rev.subject_prefix = fmt_patch_subject_prefix; |
| |
| if (default_attach) { |
| rev.mime_boundary = default_attach; |
| rev.no_inline = 1; |
| } |
| |
| /* |
| * Parse the arguments before setup_revisions(), or something |
| * like "git format-patch -o a123 HEAD^.." may fail; a123 is |
| * possibly a valid SHA1. |
| */ |
| argc = parse_options(argc, argv, prefix, builtin_format_patch_options, |
| builtin_format_patch_usage, |
| PARSE_OPT_KEEP_ARGV0 | PARSE_OPT_KEEP_UNKNOWN); |
| |
| if (do_signoff) { |
| const char *committer; |
| const char *endpos; |
| committer = git_committer_info(IDENT_ERROR_ON_NO_NAME); |
| endpos = strchr(committer, '>'); |
| if (!endpos) |
| die("bogus committer info %s", committer); |
| add_signoff = xmemdupz(committer, endpos - committer + 1); |
| } |
| |
| for (i = 0; i < extra_hdr_nr; i++) { |
| strbuf_addstr(&buf, extra_hdr[i]); |
| strbuf_addch(&buf, '\n'); |
| } |
| |
| if (extra_to_nr) |
| strbuf_addstr(&buf, "To: "); |
| for (i = 0; i < extra_to_nr; i++) { |
| if (i) |
| strbuf_addstr(&buf, " "); |
| strbuf_addstr(&buf, extra_to[i]); |
| if (i + 1 < extra_to_nr) |
| strbuf_addch(&buf, ','); |
| strbuf_addch(&buf, '\n'); |
| } |
| |
| if (extra_cc_nr) |
| strbuf_addstr(&buf, "Cc: "); |
| for (i = 0; i < extra_cc_nr; i++) { |
| if (i) |
| strbuf_addstr(&buf, " "); |
| strbuf_addstr(&buf, extra_cc[i]); |
| if (i + 1 < extra_cc_nr) |
| strbuf_addch(&buf, ','); |
| strbuf_addch(&buf, '\n'); |
| } |
| |
| rev.extra_headers = strbuf_detach(&buf, NULL); |
| |
| if (start_number < 0) |
| start_number = 1; |
| |
| /* |
| * If numbered is set solely due to format.numbered in config, |
| * and it would conflict with --keep-subject (-k) from the |
| * command line, reset "numbered". |
| */ |
| if (numbered && keep_subject && !numbered_cmdline_opt) |
| numbered = 0; |
| |
| if (numbered && keep_subject) |
| die ("-n and -k are mutually exclusive."); |
| if (keep_subject && subject_prefix) |
| die ("--subject-prefix and -k are mutually exclusive."); |
| |
| argc = setup_revisions(argc, argv, &rev, "HEAD"); |
| if (argc > 1) |
| die ("unrecognized argument: %s", argv[1]); |
| |
| if (!rev.diffopt.output_format |
| || rev.diffopt.output_format == DIFF_FORMAT_PATCH) |
| rev.diffopt.output_format = DIFF_FORMAT_DIFFSTAT | DIFF_FORMAT_SUMMARY | DIFF_FORMAT_PATCH; |
| |
| if (!DIFF_OPT_TST(&rev.diffopt, TEXT) && !no_binary_diff) |
| DIFF_OPT_SET(&rev.diffopt, BINARY); |
| |
| if (!use_stdout) |
| output_directory = set_outdir(prefix, output_directory); |
| |
| if (output_directory) { |
| if (use_stdout) |
| die("standard output, or directory, which one?"); |
| if (mkdir(output_directory, 0777) < 0 && errno != EEXIST) |
| die_errno("Could not create directory '%s'", |
| output_directory); |
| } |
| |
| if (rev.pending.nr == 1) { |
| if (rev.max_count < 0 && !rev.show_root_diff) { |
| /* |
| * This is traditional behaviour of "git format-patch |
| * origin" that prepares what the origin side still |
| * does not have. |
| */ |
| rev.pending.objects[0].item->flags |= UNINTERESTING; |
| add_head_to_pending(&rev); |
| } |
| /* |
| * Otherwise, it is "format-patch -22 HEAD", and/or |
| * "format-patch --root HEAD". The user wants |
| * get_revision() to do the usual traversal. |
| */ |
| } |
| |
| /* |
| * We cannot move this anywhere earlier because we do want to |
| * know if --root was given explicitly from the comand line. |
| */ |
| rev.show_root_diff = 1; |
| |
| if (cover_letter) { |
| /* remember the range */ |
| int i; |
| for (i = 0; i < rev.pending.nr; i++) { |
| struct object *o = rev.pending.objects[i].item; |
| if (!(o->flags & UNINTERESTING)) |
| head = (struct commit *)o; |
| } |
| /* We can't generate a cover letter without any patches */ |
| if (!head) |
| return 0; |
| } |
| |
| if (ignore_if_in_upstream) |
| get_patch_ids(&rev, &ids, prefix); |
| |
| if (!use_stdout) |
| realstdout = xfdopen(xdup(1), "w"); |
| |
| if (prepare_revision_walk(&rev)) |
| die("revision walk setup failed"); |
| rev.boundary = 1; |
| while ((commit = get_revision(&rev)) != NULL) { |
| if (commit->object.flags & BOUNDARY) { |
| boundary_count++; |
| origin = (boundary_count == 1) ? commit : NULL; |
| continue; |
| } |
| |
| /* ignore merges */ |
| if (commit->parents && commit->parents->next) |
| continue; |
| |
| if (ignore_if_in_upstream && |
| has_commit_patch_id(commit, &ids)) |
| continue; |
| |
| nr++; |
| list = xrealloc(list, nr * sizeof(list[0])); |
| list[nr - 1] = commit; |
| } |
| total = nr; |
| if (!keep_subject && auto_number && total > 1) |
| numbered = 1; |
| if (numbered) |
| rev.total = total + start_number - 1; |
| if (in_reply_to || thread || cover_letter) |
| rev.ref_message_ids = xcalloc(1, sizeof(struct string_list)); |
| if (in_reply_to) { |
| const char *msgid = clean_message_id(in_reply_to); |
| string_list_append(msgid, rev.ref_message_ids); |
| } |
| rev.numbered_files = numbered_files; |
| rev.patch_suffix = fmt_patch_suffix; |
| if (cover_letter) { |
| if (thread) |
| gen_message_id(&rev, "cover"); |
| make_cover_letter(&rev, use_stdout, numbered, numbered_files, |
| origin, nr, list, head); |
| total++; |
| start_number--; |
| } |
| rev.add_signoff = add_signoff; |
| while (0 <= --nr) { |
| int shown; |
| commit = list[nr]; |
| rev.nr = total - nr + (start_number - 1); |
| /* Make the second and subsequent mails replies to the first */ |
| if (thread) { |
| /* Have we already had a message ID? */ |
| if (rev.message_id) { |
| /* |
| * For deep threading: make every mail |
| * a reply to the previous one, no |
| * matter what other options are set. |
| * |
| * For shallow threading: |
| * |
| * Without --cover-letter and |
| * --in-reply-to, make every mail a |
| * reply to the one before. |
| * |
| * With --in-reply-to but no |
| * --cover-letter, make every mail a |
| * reply to the <reply-to>. |
| * |
| * With --cover-letter, make every |
| * mail but the cover letter a reply |
| * to the cover letter. The cover |
| * letter is a reply to the |
| * --in-reply-to, if specified. |
| */ |
| if (thread == THREAD_SHALLOW |
| && rev.ref_message_ids->nr > 0 |
| && (!cover_letter || rev.nr > 1)) |
| free(rev.message_id); |
| else |
| string_list_append(rev.message_id, |
| rev.ref_message_ids); |
| } |
| gen_message_id(&rev, sha1_to_hex(commit->object.sha1)); |
| } |
| |
| if (!use_stdout && reopen_stdout(numbered_files ? NULL : commit, |
| &rev)) |
| die("Failed to create output files"); |
| shown = log_tree_commit(&rev, commit); |
| free(commit->buffer); |
| commit->buffer = NULL; |
| |
| /* We put one extra blank line between formatted |
| * patches and this flag is used by log-tree code |
| * to see if it needs to emit a LF before showing |
| * the log; when using one file per patch, we do |
| * not want the extra blank line. |
| */ |
| if (!use_stdout) |
| rev.shown_one = 0; |
| if (shown) { |
| if (rev.mime_boundary) |
| printf("\n--%s%s--\n\n\n", |
| mime_boundary_leader, |
| rev.mime_boundary); |
| else |
| printf("-- \n%s\n\n", git_version_string); |
| } |
| if (!use_stdout) |
| fclose(stdout); |
| } |
| free(list); |
| if (ignore_if_in_upstream) |
| free_patch_ids(&ids); |
| return 0; |
| } |
| |
| static int add_pending_commit(const char *arg, struct rev_info *revs, int flags) |
| { |
| unsigned char sha1[20]; |
| if (get_sha1(arg, sha1) == 0) { |
| struct commit *commit = lookup_commit_reference(sha1); |
| if (commit) { |
| commit->object.flags |= flags; |
| add_pending_object(revs, &commit->object, arg); |
| return 0; |
| } |
| } |
| return -1; |
| } |
| |
| static const char cherry_usage[] = |
| "git cherry [-v] [<upstream> [<head> [<limit>]]]"; |
| int cmd_cherry(int argc, const char **argv, const char *prefix) |
| { |
| struct rev_info revs; |
| struct patch_ids ids; |
| struct commit *commit; |
| struct commit_list *list = NULL; |
| struct branch *current_branch; |
| const char *upstream; |
| const char *head = "HEAD"; |
| const char *limit = NULL; |
| int verbose = 0; |
| |
| if (argc > 1 && !strcmp(argv[1], "-v")) { |
| verbose = 1; |
| argc--; |
| argv++; |
| } |
| |
| switch (argc) { |
| case 4: |
| limit = argv[3]; |
| /* FALLTHROUGH */ |
| case 3: |
| head = argv[2]; |
| /* FALLTHROUGH */ |
| case 2: |
| upstream = argv[1]; |
| break; |
| default: |
| current_branch = branch_get(NULL); |
| if (!current_branch || !current_branch->merge |
| || !current_branch->merge[0] |
| || !current_branch->merge[0]->dst) { |
| fprintf(stderr, "Could not find a tracked" |
| " remote branch, please" |
| " specify <upstream> manually.\n"); |
| usage(cherry_usage); |
| } |
| |
| upstream = current_branch->merge[0]->dst; |
| } |
| |
| init_revisions(&revs, prefix); |
| revs.diff = 1; |
| revs.combine_merges = 0; |
| revs.ignore_merges = 1; |
| DIFF_OPT_SET(&revs.diffopt, RECURSIVE); |
| |
| if (add_pending_commit(head, &revs, 0)) |
| die("Unknown commit %s", head); |
| if (add_pending_commit(upstream, &revs, UNINTERESTING)) |
| die("Unknown commit %s", upstream); |
| |
| /* Don't say anything if head and upstream are the same. */ |
| if (revs.pending.nr == 2) { |
| struct object_array_entry *o = revs.pending.objects; |
| if (hashcmp(o[0].item->sha1, o[1].item->sha1) == 0) |
| return 0; |
| } |
| |
| get_patch_ids(&revs, &ids, prefix); |
| |
| if (limit && add_pending_commit(limit, &revs, UNINTERESTING)) |
| die("Unknown commit %s", limit); |
| |
| /* reverse the list of commits */ |
| if (prepare_revision_walk(&revs)) |
| die("revision walk setup failed"); |
| while ((commit = get_revision(&revs)) != NULL) { |
| /* ignore merges */ |
| if (commit->parents && commit->parents->next) |
| continue; |
| |
| commit_list_insert(commit, &list); |
| } |
| |
| while (list) { |
| char sign = '+'; |
| |
| commit = list->item; |
| if (has_commit_patch_id(commit, &ids)) |
| sign = '-'; |
| |
| if (verbose) { |
| struct strbuf buf = STRBUF_INIT; |
| pretty_print_commit(CMIT_FMT_ONELINE, commit, |
| &buf, 0, NULL, NULL, 0, 0); |
| printf("%c %s %s\n", sign, |
| sha1_to_hex(commit->object.sha1), buf.buf); |
| strbuf_release(&buf); |
| } |
| else { |
| printf("%c %s\n", sign, |
| sha1_to_hex(commit->object.sha1)); |
| } |
| |
| list = list->next; |
| } |
| |
| free_patch_ids(&ids); |
| return 0; |
| } |