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![Stephen Boyd](/assets/img/avatar_default.png)
The --summary command line option has been deprecated in favor of --log. Hide the option from the help message to further discourage the use of this option. Signed-off-by: Stephen Boyd <bebarino@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
335 lines
8.1 KiB
C
335 lines
8.1 KiB
C
#include "builtin.h"
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#include "cache.h"
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#include "commit.h"
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#include "diff.h"
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#include "revision.h"
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#include "tag.h"
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#include "string-list.h"
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static const char * const fmt_merge_msg_usage[] = {
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"git fmt-merge-msg [--log|--no-log] [--file <file>]",
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NULL
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};
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static int merge_summary;
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static int fmt_merge_msg_config(const char *key, const char *value, void *cb)
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{
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static int found_merge_log = 0;
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if (!strcmp("merge.log", key)) {
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found_merge_log = 1;
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merge_summary = git_config_bool(key, value);
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}
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if (!found_merge_log && !strcmp("merge.summary", key))
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merge_summary = git_config_bool(key, value);
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return 0;
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}
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struct src_data {
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struct string_list branch, tag, r_branch, generic;
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int head_status;
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};
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void init_src_data(struct src_data *data)
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{
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data->branch.strdup_strings = 1;
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data->tag.strdup_strings = 1;
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data->r_branch.strdup_strings = 1;
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data->generic.strdup_strings = 1;
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}
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static struct string_list srcs = { NULL, 0, 0, 1 };
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static struct string_list origins = { NULL, 0, 0, 1 };
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static int handle_line(char *line)
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{
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int i, len = strlen(line);
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unsigned char *sha1;
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char *src, *origin;
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struct src_data *src_data;
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struct string_list_item *item;
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int pulling_head = 0;
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if (len < 43 || line[40] != '\t')
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return 1;
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if (!prefixcmp(line + 41, "not-for-merge"))
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return 0;
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if (line[41] != '\t')
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return 2;
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line[40] = 0;
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sha1 = xmalloc(20);
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i = get_sha1(line, sha1);
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line[40] = '\t';
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if (i)
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return 3;
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if (line[len - 1] == '\n')
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line[len - 1] = 0;
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line += 42;
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src = strstr(line, " of ");
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if (src) {
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*src = 0;
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src += 4;
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pulling_head = 0;
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} else {
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src = line;
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pulling_head = 1;
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}
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item = unsorted_string_list_lookup(&srcs, src);
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if (!item) {
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item = string_list_append(src, &srcs);
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item->util = xcalloc(1, sizeof(struct src_data));
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init_src_data(item->util);
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}
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src_data = item->util;
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if (pulling_head) {
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origin = src;
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src_data->head_status |= 1;
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} else if (!prefixcmp(line, "branch ")) {
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origin = line + 7;
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string_list_append(origin, &src_data->branch);
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src_data->head_status |= 2;
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} else if (!prefixcmp(line, "tag ")) {
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origin = line;
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string_list_append(origin + 4, &src_data->tag);
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src_data->head_status |= 2;
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} else if (!prefixcmp(line, "remote branch ")) {
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origin = line + 14;
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string_list_append(origin, &src_data->r_branch);
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src_data->head_status |= 2;
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} else {
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origin = src;
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string_list_append(line, &src_data->generic);
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src_data->head_status |= 2;
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}
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if (!strcmp(".", src) || !strcmp(src, origin)) {
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int len = strlen(origin);
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if (origin[0] == '\'' && origin[len - 1] == '\'')
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origin = xmemdupz(origin + 1, len - 2);
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} else {
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char *new_origin = xmalloc(strlen(origin) + strlen(src) + 5);
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sprintf(new_origin, "%s of %s", origin, src);
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origin = new_origin;
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}
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string_list_append(origin, &origins)->util = sha1;
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return 0;
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}
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static void print_joined(const char *singular, const char *plural,
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struct string_list *list, struct strbuf *out)
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{
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if (list->nr == 0)
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return;
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if (list->nr == 1) {
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strbuf_addf(out, "%s%s", singular, list->items[0].string);
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} else {
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int i;
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strbuf_addstr(out, plural);
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for (i = 0; i < list->nr - 1; i++)
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strbuf_addf(out, "%s%s", i > 0 ? ", " : "",
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list->items[i].string);
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strbuf_addf(out, " and %s", list->items[list->nr - 1].string);
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}
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}
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static void shortlog(const char *name, unsigned char *sha1,
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struct commit *head, struct rev_info *rev, int limit,
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struct strbuf *out)
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{
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int i, count = 0;
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struct commit *commit;
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struct object *branch;
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struct string_list subjects = { NULL, 0, 0, 1 };
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int flags = UNINTERESTING | TREESAME | SEEN | SHOWN | ADDED;
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struct strbuf sb = STRBUF_INIT;
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branch = deref_tag(parse_object(sha1), sha1_to_hex(sha1), 40);
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if (!branch || branch->type != OBJ_COMMIT)
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return;
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setup_revisions(0, NULL, rev, NULL);
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rev->ignore_merges = 1;
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add_pending_object(rev, branch, name);
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add_pending_object(rev, &head->object, "^HEAD");
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head->object.flags |= UNINTERESTING;
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if (prepare_revision_walk(rev))
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die("revision walk setup failed");
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while ((commit = get_revision(rev)) != NULL) {
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struct pretty_print_context ctx = {0};
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/* ignore merges */
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if (commit->parents && commit->parents->next)
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continue;
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count++;
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if (subjects.nr > limit)
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continue;
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format_commit_message(commit, "%s", &sb, &ctx);
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strbuf_ltrim(&sb);
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if (!sb.len)
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string_list_append(sha1_to_hex(commit->object.sha1),
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&subjects);
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else
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string_list_append(strbuf_detach(&sb, NULL), &subjects);
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}
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if (count > limit)
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strbuf_addf(out, "\n* %s: (%d commits)\n", name, count);
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else
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strbuf_addf(out, "\n* %s:\n", name);
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for (i = 0; i < subjects.nr; i++)
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if (i >= limit)
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strbuf_addf(out, " ...\n");
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else
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strbuf_addf(out, " %s\n", subjects.items[i].string);
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clear_commit_marks((struct commit *)branch, flags);
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clear_commit_marks(head, flags);
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free_commit_list(rev->commits);
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rev->commits = NULL;
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rev->pending.nr = 0;
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string_list_clear(&subjects, 0);
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}
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int fmt_merge_msg(int merge_summary, struct strbuf *in, struct strbuf *out) {
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int limit = 20, i = 0, pos = 0;
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char *sep = "";
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unsigned char head_sha1[20];
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const char *current_branch;
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/* get current branch */
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current_branch = resolve_ref("HEAD", head_sha1, 1, NULL);
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if (!current_branch)
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die("No current branch");
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if (!prefixcmp(current_branch, "refs/heads/"))
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current_branch += 11;
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/* get a line */
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while (pos < in->len) {
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int len;
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char *newline, *p = in->buf + pos;
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newline = strchr(p, '\n');
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len = newline ? newline - p : strlen(p);
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pos += len + !!newline;
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i++;
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p[len] = 0;
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if (handle_line(p))
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die ("Error in line %d: %.*s", i, len, p);
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}
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if (!srcs.nr)
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return 0;
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strbuf_addstr(out, "Merge ");
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for (i = 0; i < srcs.nr; i++) {
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struct src_data *src_data = srcs.items[i].util;
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const char *subsep = "";
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strbuf_addstr(out, sep);
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sep = "; ";
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if (src_data->head_status == 1) {
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strbuf_addstr(out, srcs.items[i].string);
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continue;
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}
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if (src_data->head_status == 3) {
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subsep = ", ";
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strbuf_addstr(out, "HEAD");
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}
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if (src_data->branch.nr) {
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strbuf_addstr(out, subsep);
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subsep = ", ";
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print_joined("branch ", "branches ", &src_data->branch,
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out);
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}
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if (src_data->r_branch.nr) {
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strbuf_addstr(out, subsep);
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subsep = ", ";
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print_joined("remote branch ", "remote branches ",
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&src_data->r_branch, out);
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}
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if (src_data->tag.nr) {
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strbuf_addstr(out, subsep);
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subsep = ", ";
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print_joined("tag ", "tags ", &src_data->tag, out);
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}
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if (src_data->generic.nr) {
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strbuf_addstr(out, subsep);
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print_joined("commit ", "commits ", &src_data->generic,
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out);
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}
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if (strcmp(".", srcs.items[i].string))
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strbuf_addf(out, " of %s", srcs.items[i].string);
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}
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if (!strcmp("master", current_branch))
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strbuf_addch(out, '\n');
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else
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strbuf_addf(out, " into %s\n", current_branch);
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if (merge_summary) {
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struct commit *head;
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struct rev_info rev;
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head = lookup_commit(head_sha1);
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init_revisions(&rev, NULL);
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rev.commit_format = CMIT_FMT_ONELINE;
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rev.ignore_merges = 1;
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rev.limited = 1;
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for (i = 0; i < origins.nr; i++)
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shortlog(origins.items[i].string, origins.items[i].util,
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head, &rev, limit, out);
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}
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return 0;
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}
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int cmd_fmt_merge_msg(int argc, const char **argv, const char *prefix)
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{
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const char *inpath = NULL;
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struct option options[] = {
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OPT_BOOLEAN(0, "log", &merge_summary, "populate log with the shortlog"),
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{ OPTION_BOOLEAN, 0, "summary", &merge_summary, NULL,
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"alias for --log (deprecated)",
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PARSE_OPT_NOARG | PARSE_OPT_HIDDEN },
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OPT_FILENAME('F', "file", &inpath, "file to read from"),
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OPT_END()
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};
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FILE *in = stdin;
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struct strbuf input = STRBUF_INIT, output = STRBUF_INIT;
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int ret;
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git_config(fmt_merge_msg_config, NULL);
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argc = parse_options(argc, argv, prefix, options, fmt_merge_msg_usage,
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0);
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if (argc > 0)
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usage_with_options(fmt_merge_msg_usage, options);
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if (inpath && strcmp(inpath, "-")) {
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in = fopen(inpath, "r");
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if (!in)
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die_errno("cannot open '%s'", inpath);
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}
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if (strbuf_read(&input, fileno(in), 0) < 0)
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die_errno("could not read input file");
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ret = fmt_merge_msg(merge_summary, &input, &output);
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if (ret)
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return ret;
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write_in_full(STDOUT_FILENO, output.buf, output.len);
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return 0;
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}
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