/* * 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 int decoration_style = 0; static const char *fmt_patch_subject_prefix = "PATCH"; static const char *fmt_pretty; static const char * const builtin_log_usage = "git log [] [..] [[--] ...]\n" " or: git show [options] ..."; static void cmd_log_init(int argc, const char **argv, const char *prefix, struct rev_info *rev) { int i; 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); /* * Check for -h before setup_revisions(), or "git log -h" will * fail when run without a git directory. */ if (argc == 2 && !strcmp(argv[1], "-h")) usage(builtin_log_usage); argc = setup_revisions(argc, argv, rev, "HEAD"); if (!rev->show_notes_given && !rev->pretty_given) rev->show_notes = 1; 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.decorate")) { if (!strcmp(value, "full")) decoration_style = DECORATE_FULL_REFS; else if (!strcmp(value, "short")) decoration_style = DECORATE_SHORT_REFS; return 0; } 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, QUICK)) 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] [ | ]", 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; int use_patch_format = 0; 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 instead of '.patch'"), OPT_INTEGER(0, "start-number", &start_number, "start numbering patches at instead of 1"), { OPTION_CALLBACK, 0, "subject-prefix", &rev, "prefix", "Use [] instead of [PATCH]", PARSE_OPT_NONEG, subject_prefix_callback }, { OPTION_CALLBACK, 'o', "output-directory", &output_directory, "dir", "store resulting files in ", 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"), { OPTION_BOOLEAN, 'p', "no-stat", &use_patch_format, NULL, "show patch format instead of default (patch + stat)", PARSE_OPT_NONEG | PARSE_OPT_NOARG }, 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 "), { 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 | PARSE_OPT_KEEP_DASHDASH); 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 & DIFF_FORMAT_NAME) die("--name-only does not make sense"); if (rev.diffopt.output_format & DIFF_FORMAT_NAME_STATUS) die("--name-status does not make sense"); if (rev.diffopt.output_format & DIFF_FORMAT_CHECKDIFF) die("--check does not make sense"); if (!use_patch_format && (!rev.diffopt.output_format || rev.diffopt.output_format == DIFF_FORMAT_PATCH)) rev.diffopt.output_format = DIFF_FORMAT_DIFFSTAT | DIFF_FORMAT_SUMMARY; /* Always generate a patch */ rev.diffopt.output_format |= 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 . * * 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] [ [ []]]"; 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++; } if (argc > 1 && !strcmp(argv[1], "-h")) usage(cherry_usage); 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 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; struct pretty_print_context ctx = {0}; pretty_print_commit(CMIT_FMT_ONELINE, commit, &buf, &ctx); 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; }