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-rw-r--r--builtin-log.c1177
1 files changed, 1177 insertions, 0 deletions
diff --git a/builtin-log.c b/builtin-log.c
new file mode 100644
index 0000000000..430d87661e
--- /dev/null
+++ b/builtin-log.c
@@ -0,0 +1,1177 @@
+/*
+ * 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 "refs.h"
+#include "run-command.h"
+#include "shortlog.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 void add_name_decoration(const char *prefix, const char *name, struct object *obj)
+{
+ int plen = strlen(prefix);
+ int nlen = strlen(name);
+ struct name_decoration *res = xmalloc(sizeof(struct name_decoration) + plen + nlen);
+ memcpy(res->name, prefix, plen);
+ memcpy(res->name + plen, name, nlen + 1);
+ res->next = add_decoration(&name_decoration, obj, res);
+}
+
+static int add_ref_decoration(const char *refname, const unsigned char *sha1, int flags, void *cb_data)
+{
+ struct object *obj = parse_object(sha1);
+ if (!obj)
+ return 0;
+ add_name_decoration("", refname, obj);
+ while (obj->type == OBJ_TAG) {
+ obj = ((struct tag *)obj)->tagged;
+ if (!obj)
+ break;
+ add_name_decoration("tag: ", refname, obj);
+ }
+ return 0;
+}
+
+static void cmd_log_init(int argc, const char **argv, const char *prefix,
+ struct rev_info *rev)
+{
+ int i;
+ int decorate = 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;
+
+ 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")) {
+ if (!decorate)
+ for_each_ref(add_ref_decoration, NULL);
+ decorate = 1;
+ } else
+ die("unrecognized argument: %s", arg);
+ }
+}
+
+/*
+ * 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);
+}
+
+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);
+
+ 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;
+ }
+ return 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)
+{
+ char *email_end, *p;
+ unsigned long date;
+ int tz;
+
+ email_end = memchr(buf, '>', len);
+ if (!email_end)
+ return;
+ p = ++email_end;
+ while (isspace(*p))
+ p++;
+ date = strtoul(p, &p, 10);
+ while (isspace(*p))
+ p++;
+ tz = (int)strtol(p, NULL, 10);
+ printf("Tagger: %.*s\nDate: %s\n", (int)(email_end - buf), buf,
+ show_date(date, tz, rev->date_mode));
+}
+
+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)
+{
+ 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;
+
+ 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);
+ objects[i].item = parse_object(t->tagged->sha1);
+ i--;
+ break;
+ }
+ case OBJ_TREE:
+ 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);
+ 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 */
+#define FORMAT_PATCH_NAME_MAX 64
+
+static int istitlechar(char c)
+{
+ return (c >= 'a' && c <= 'z') || (c >= 'A' && c <= 'Z') ||
+ (c >= '0' && c <= '9') || c == '.' || c == '_';
+}
+
+static const char *fmt_patch_suffix = ".patch";
+static int numbered = 0;
+static int auto_number = 0;
+
+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 (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);
+}
+
+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);
+ return 0;
+ }
+
+ return git_log_config(var, value, cb);
+}
+
+
+static const char *get_oneline_for_filename(struct commit *commit,
+ int keep_subject)
+{
+ static char filename[PATH_MAX];
+ char *sol;
+ int len = 0;
+ int suffix_len = strlen(fmt_patch_suffix) + 1;
+
+ sol = strstr(commit->buffer, "\n\n");
+ if (!sol)
+ filename[0] = '\0';
+ else {
+ int j, space = 0;
+
+ sol += 2;
+ /* strip [PATCH] or [PATCH blabla] */
+ if (!keep_subject && !prefixcmp(sol, "[PATCH")) {
+ char *eos = strchr(sol + 6, ']');
+ if (eos) {
+ while (isspace(*eos))
+ eos++;
+ sol = eos;
+ }
+ }
+
+ for (j = 0;
+ j < FORMAT_PATCH_NAME_MAX - suffix_len - 5 &&
+ len < sizeof(filename) - suffix_len &&
+ sol[j] && sol[j] != '\n';
+ j++) {
+ if (istitlechar(sol[j])) {
+ if (space) {
+ filename[len++] = '-';
+ space = 0;
+ }
+ filename[len++] = sol[j];
+ if (sol[j] == '.')
+ while (sol[j + 1] == '.')
+ j++;
+ } else
+ space = 1;
+ }
+ while (filename[len - 1] == '.'
+ || filename[len - 1] == '-')
+ len--;
+ filename[len] = '\0';
+ }
+ return filename;
+}
+
+static FILE *realstdout = NULL;
+static const char *output_directory = NULL;
+
+static int reopen_stdout(const char *oneline, int nr, int total)
+{
+ char filename[PATH_MAX];
+ int len = 0;
+ int suffix_len = strlen(fmt_patch_suffix) + 1;
+
+ if (output_directory) {
+ len = snprintf(filename, sizeof(filename), "%s",
+ output_directory);
+ if (len >=
+ sizeof(filename) - FORMAT_PATCH_NAME_MAX - suffix_len)
+ return error("name of output directory is too long");
+ if (filename[len - 1] != '/')
+ filename[len++] = '/';
+ }
+
+ if (!oneline)
+ len += sprintf(filename + len, "%d", nr);
+ else {
+ len += sprintf(filename + len, "%04d-", nr);
+ len += snprintf(filename + len, sizeof(filename) - len - 1
+ - suffix_len, "%s", oneline);
+ strcpy(filename + len, fmt_patch_suffix);
+ }
+
+ fprintf(realstdout, "%s\n", filename);
+ if (freopen(filename, "w", stdout) == NULL)
+ return error("Cannot open patch file %s",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;
+ if (!email_start || !email_end || email_start > email_end - 1)
+ die("Could not extract email from committer identity.");
+ strbuf_init(&buf, 0);
+ 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;
+ char *head_sha1;
+ 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;
+ int i;
+ const char *encoding = "utf-8";
+ struct diff_options opts;
+ int need_8bit_cte = 0;
+
+ if (rev->commit_format != CMIT_FMT_EMAIL)
+ die("Cover letter needs email format");
+
+ if (!use_stdout && reopen_stdout(numbered_files ?
+ NULL : "cover-letter", 0, rev->total))
+ return;
+
+ head_sha1 = sha1_to_hex(head->object.sha1);
+
+ log_write_email_headers(rev, head_sha1, &subject_start, &extra_headers,
+ &need_8bit_cte);
+
+ committer = git_committer_info(0);
+
+ msg = body;
+ strbuf_init(&sb, 0);
+ 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);
+}
+
+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, j;
+ int use_stdout = 0;
+ int start_number = -1;
+ int keep_subject = 0;
+ int numbered_files = 0; /* _just_ numbers */
+ int subject_prefix = 0;
+ int ignore_if_in_upstream = 0;
+ int thread = 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;
+
+ 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;
+
+ /*
+ * Parse the arguments before setup_revisions(), or something
+ * like "git format-patch -o a123 HEAD^.." may fail; a123 is
+ * possibly a valid SHA1.
+ */
+ for (i = 1, j = 1; i < argc; i++) {
+ if (!strcmp(argv[i], "--stdout"))
+ use_stdout = 1;
+ else if (!strcmp(argv[i], "-n") ||
+ !strcmp(argv[i], "--numbered"))
+ numbered = 1;
+ else if (!strcmp(argv[i], "-N") ||
+ !strcmp(argv[i], "--no-numbered")) {
+ numbered = 0;
+ auto_number = 0;
+ }
+ else if (!prefixcmp(argv[i], "--start-number="))
+ start_number = strtol(argv[i] + 15, NULL, 10);
+ else if (!strcmp(argv[i], "--numbered-files"))
+ numbered_files = 1;
+ else if (!strcmp(argv[i], "--start-number")) {
+ i++;
+ if (i == argc)
+ die("Need a number for --start-number");
+ start_number = strtol(argv[i], NULL, 10);
+ }
+ else if (!prefixcmp(argv[i], "--cc=")) {
+ ALLOC_GROW(extra_cc, extra_cc_nr + 1, extra_cc_alloc);
+ extra_cc[extra_cc_nr++] = xstrdup(argv[i] + 5);
+ }
+ else if (!strcmp(argv[i], "-k") ||
+ !strcmp(argv[i], "--keep-subject")) {
+ keep_subject = 1;
+ rev.total = -1;
+ }
+ else if (!strcmp(argv[i], "--output-directory") ||
+ !strcmp(argv[i], "-o")) {
+ i++;
+ if (argc <= i)
+ die("Which directory?");
+ if (output_directory)
+ die("Two output directories?");
+ output_directory = argv[i];
+ }
+ else if (!strcmp(argv[i], "--signoff") ||
+ !strcmp(argv[i], "-s")) {
+ const char *committer;
+ const char *endpos;
+ committer = git_committer_info(IDENT_ERROR_ON_NO_NAME);
+ endpos = strchr(committer, '>');
+ if (!endpos)
+ die("bogos committer info %s\n", committer);
+ add_signoff = xmemdupz(committer, endpos - committer + 1);
+ }
+ else if (!strcmp(argv[i], "--attach")) {
+ rev.mime_boundary = git_version_string;
+ rev.no_inline = 1;
+ }
+ else if (!prefixcmp(argv[i], "--attach=")) {
+ rev.mime_boundary = argv[i] + 9;
+ rev.no_inline = 1;
+ }
+ else if (!strcmp(argv[i], "--inline")) {
+ rev.mime_boundary = git_version_string;
+ rev.no_inline = 0;
+ }
+ else if (!prefixcmp(argv[i], "--inline=")) {
+ rev.mime_boundary = argv[i] + 9;
+ rev.no_inline = 0;
+ }
+ else if (!strcmp(argv[i], "--ignore-if-in-upstream"))
+ ignore_if_in_upstream = 1;
+ else if (!strcmp(argv[i], "--thread"))
+ thread = 1;
+ else if (!prefixcmp(argv[i], "--in-reply-to="))
+ in_reply_to = argv[i] + 14;
+ else if (!strcmp(argv[i], "--in-reply-to")) {
+ i++;
+ if (i == argc)
+ die("Need a Message-Id for --in-reply-to");
+ in_reply_to = argv[i];
+ } else if (!prefixcmp(argv[i], "--subject-prefix=")) {
+ subject_prefix = 1;
+ rev.subject_prefix = argv[i] + 17;
+ } else if (!prefixcmp(argv[i], "--suffix="))
+ fmt_patch_suffix = argv[i] + 9;
+ else if (!strcmp(argv[i], "--cover-letter"))
+ cover_letter = 1;
+ else if (!strcmp(argv[i], "--no-binary"))
+ no_binary_diff = 1;
+ else
+ argv[j++] = argv[i];
+ }
+ argc = j;
+
+ strbuf_init(&buf, 0);
+
+ 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, 0);
+
+ if (start_number < 0)
+ start_number = 1;
+ if (numbered && keep_subject)
+ die ("-n and -k are mutually exclusive.");
+ if (keep_subject && subject_prefix)
+ die ("--subject-prefix and -k are mutually exclusive.");
+ if (numbered_files && use_stdout)
+ die ("--numbered-files and --stdout 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_DIFFSTAT | DIFF_FORMAT_SUMMARY | DIFF_FORMAT_PATCH;
+
+ if (!DIFF_OPT_TST(&rev.diffopt, TEXT) && !no_binary_diff)
+ DIFF_OPT_SET(&rev.diffopt, BINARY);
+
+ if (!output_directory && !use_stdout)
+ output_directory = prefix;
+
+ if (output_directory) {
+ if (use_stdout)
+ die("standard output, or directory, which one?");
+ if (mkdir(output_directory, 0777) < 0 && errno != EEXIST)
+ die("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.
+ */
+ }
+ 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)
+ rev.ref_message_id = clean_message_id(in_reply_to);
+ 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) {
+ /*
+ * If we've got the ID to be a reply
+ * to, discard the current ID;
+ * otherwise, make everything a reply
+ * to that.
+ */
+ if (rev.ref_message_id)
+ free(rev.message_id);
+ else
+ rev.ref_message_id = rev.message_id;
+ }
+ gen_message_id(&rev, sha1_to_hex(commit->object.sha1));
+ }
+ if (!use_stdout && reopen_stdout(numbered_files ? NULL :
+ get_oneline_for_filename(commit, keep_subject),
+ rev.nr, rev.total))
+ 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;
+ 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:
+ usage(cherry_usage);
+ }
+
+ 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(&buf, 0);
+ 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;
+}
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-25 14:11:36 +0000