+int handle_revision_opt(struct rev_info *revs, int argc, const char **argv,
+ int *unkc, const char **unkv)
+{
+ const char *arg = argv[0];
+
+ /* pseudo revision arguments */
+ if (!strcmp(arg, "--all") || !strcmp(arg, "--branches") ||
+ !strcmp(arg, "--tags") || !strcmp(arg, "--remotes") ||
+ !strcmp(arg, "--reflog") || !strcmp(arg, "--not") ||
+ !strcmp(arg, "--no-walk") || !strcmp(arg, "--do-walk"))
+ {
+ unkv[(*unkc)++] = arg;
+ return 0;
+ }
+
+ if (!prefixcmp(arg, "--max-count=")) {
+ revs->max_count = atoi(arg + 12);
+ } else if (!prefixcmp(arg, "--skip=")) {
+ revs->skip_count = atoi(arg + 7);
+ } else if ((*arg == '-') && isdigit(arg[1])) {
+ /* accept -<digit>, like traditional "head" */
+ revs->max_count = atoi(arg + 1);
+ } else if (!strcmp(arg, "-n")) {
+ if (argc <= 1)
+ return error("-n requires an argument");
+ revs->max_count = atoi(argv[1]);
+ return 2;
+ } else if (!prefixcmp(arg, "-n")) {
+ revs->max_count = atoi(arg + 2);
+ } else if (!prefixcmp(arg, "--max-age=")) {
+ revs->max_age = atoi(arg + 10);
+ } else if (!prefixcmp(arg, "--since=")) {
+ revs->max_age = approxidate(arg + 8);
+ } else if (!prefixcmp(arg, "--after=")) {
+ revs->max_age = approxidate(arg + 8);
+ } else if (!prefixcmp(arg, "--min-age=")) {
+ revs->min_age = atoi(arg + 10);
+ } else if (!prefixcmp(arg, "--before=")) {
+ revs->min_age = approxidate(arg + 9);
+ } else if (!prefixcmp(arg, "--until=")) {
+ revs->min_age = approxidate(arg + 8);
+ } else if (!strcmp(arg, "--first-parent")) {
+ revs->first_parent_only = 1;
+ } else if (!strcmp(arg, "-g") || !strcmp(arg, "--walk-reflogs")) {
+ init_reflog_walk(&revs->reflog_info);
+ } else if (!strcmp(arg, "--default")) {
+ if (argc <= 1)
+ return error("bad --default argument");
+ revs->def = argv[1];
+ return 2;
+ } else if (!strcmp(arg, "--merge")) {
+ revs->show_merge = 1;
+ } else if (!strcmp(arg, "--topo-order")) {
+ revs->lifo = 1;
+ revs->topo_order = 1;
+ } else if (!strcmp(arg, "--date-order")) {
+ revs->lifo = 0;
+ revs->topo_order = 1;
+ } else if (!prefixcmp(arg, "--early-output")) {
+ int count = 100;
+ switch (arg[14]) {
+ case '=':
+ count = atoi(arg+15);
+ /* Fallthrough */
+ case 0:
+ revs->topo_order = 1;
+ revs->early_output = count;
+ }
+ } else if (!strcmp(arg, "--parents")) {
+ revs->rewrite_parents = 1;
+ revs->print_parents = 1;
+ } else if (!strcmp(arg, "--dense")) {
+ revs->dense = 1;
+ } else if (!strcmp(arg, "--sparse")) {
+ revs->dense = 0;
+ } else if (!strcmp(arg, "--show-all")) {
+ revs->show_all = 1;
+ } else if (!strcmp(arg, "--remove-empty")) {
+ revs->remove_empty_trees = 1;
+ } else if (!strcmp(arg, "--no-merges")) {
+ revs->no_merges = 1;
+ } else if (!strcmp(arg, "--boundary")) {
+ revs->boundary = 1;
+ } else if (!strcmp(arg, "--left-right")) {
+ revs->left_right = 1;
+ } else if (!strcmp(arg, "--cherry-pick")) {
+ revs->cherry_pick = 1;
+ revs->limited = 1;
+ } else if (!strcmp(arg, "--objects")) {
+ revs->tag_objects = 1;
+ revs->tree_objects = 1;
+ revs->blob_objects = 1;
+ } else if (!strcmp(arg, "--objects-edge")) {
+ revs->tag_objects = 1;
+ revs->tree_objects = 1;
+ revs->blob_objects = 1;
+ revs->edge_hint = 1;
+ } else if (!strcmp(arg, "--unpacked")) {
+ revs->unpacked = 1;
+ free(revs->ignore_packed);
+ revs->ignore_packed = NULL;
+ revs->num_ignore_packed = 0;
+ } else if (!prefixcmp(arg, "--unpacked=")) {
+ revs->unpacked = 1;
+ add_ignore_packed(revs, arg+11);
+ } else if (!strcmp(arg, "-r")) {
+ revs->diff = 1;
+ DIFF_OPT_SET(&revs->diffopt, RECURSIVE);
+ } else if (!strcmp(arg, "-t")) {
+ revs->diff = 1;
+ DIFF_OPT_SET(&revs->diffopt, RECURSIVE);
+ DIFF_OPT_SET(&revs->diffopt, TREE_IN_RECURSIVE);
+ } else if (!strcmp(arg, "-m")) {
+ revs->ignore_merges = 0;
+ } else if (!strcmp(arg, "-c")) {
+ revs->diff = 1;
+ revs->dense_combined_merges = 0;
+ revs->combine_merges = 1;
+ } else if (!strcmp(arg, "--cc")) {
+ revs->diff = 1;
+ revs->dense_combined_merges = 1;
+ revs->combine_merges = 1;
+ } else if (!strcmp(arg, "-v")) {
+ revs->verbose_header = 1;
+ } else if (!strcmp(arg, "--pretty")) {
+ revs->verbose_header = 1;
+ get_commit_format(arg+8, revs);
+ } else if (!prefixcmp(arg, "--pretty=")) {
+ revs->verbose_header = 1;
+ get_commit_format(arg+9, revs);
+ } else if (!strcmp(arg, "--graph")) {
+ revs->topo_order = 1;
+ revs->rewrite_parents = 1;
+ revs->graph = graph_init(revs);
+ } else if (!strcmp(arg, "--root")) {
+ revs->show_root_diff = 1;
+ } else if (!strcmp(arg, "--no-commit-id")) {
+ revs->no_commit_id = 1;
+ } else if (!strcmp(arg, "--always")) {
+ revs->always_show_header = 1;
+ } else if (!strcmp(arg, "--no-abbrev")) {
+ revs->abbrev = 0;
+ } else if (!strcmp(arg, "--abbrev")) {
+ revs->abbrev = DEFAULT_ABBREV;
+ } else if (!prefixcmp(arg, "--abbrev=")) {
+ revs->abbrev = strtoul(arg + 9, NULL, 10);
+ if (revs->abbrev < MINIMUM_ABBREV)
+ revs->abbrev = MINIMUM_ABBREV;
+ else if (revs->abbrev > 40)
+ revs->abbrev = 40;
+ } else if (!strcmp(arg, "--abbrev-commit")) {
+ revs->abbrev_commit = 1;
+ } else if (!strcmp(arg, "--full-diff")) {
+ revs->diff = 1;
+ revs->full_diff = 1;
+ } else if (!strcmp(arg, "--full-history")) {
+ revs->simplify_history = 0;
+ } else if (!strcmp(arg, "--relative-date")) {
+ revs->date_mode = DATE_RELATIVE;
+ } else if (!strncmp(arg, "--date=", 7)) {
+ revs->date_mode = parse_date_format(arg + 7);
+ } else if (!strcmp(arg, "--log-size")) {
+ revs->show_log_size = 1;
+ }
+ /*
+ * Grepping the commit log
+ */
+ else if (!prefixcmp(arg, "--author=")) {
+ add_header_grep(revs, "author", arg+9);
+ } else if (!prefixcmp(arg, "--committer=")) {
+ add_header_grep(revs, "committer", arg+12);
+ } else if (!prefixcmp(arg, "--grep=")) {
+ add_message_grep(revs, arg+7);
+ } else if (!strcmp(arg, "--extended-regexp") || !strcmp(arg, "-E")) {
+ if (revs->grep_filter)
+ revs->grep_filter->regflags |= REG_EXTENDED;
+ } else if (!strcmp(arg, "--regexp-ignore-case") || !strcmp(arg, "-i")) {
+ if (revs->grep_filter)
+ revs->grep_filter->regflags |= REG_ICASE;
+ } else if (!strcmp(arg, "--fixed-strings") || !strcmp(arg, "-F")) {
+ if (revs->grep_filter)
+ revs->grep_filter->fixed = 1;
+ } else if (!strcmp(arg, "--all-match")) {
+ if (revs->grep_filter)
+ revs->grep_filter->all_match = 1;
+ } else if (!prefixcmp(arg, "--encoding=")) {
+ arg += 11;
+ if (strcmp(arg, "none"))
+ git_log_output_encoding = xstrdup(arg);
+ else
+ git_log_output_encoding = "";
+ } else if (!strcmp(arg, "--reverse")) {
+ revs->reverse ^= 1;
+ } else if (!strcmp(arg, "--children")) {
+ revs->children.name = "children";
+ revs->limited = 1;
+ } else {
+ int opts = diff_opt_parse(&revs->diffopt, argv, argc);
+ if (!opts)
+ unkv[(*unkc)++] = arg;
+ return opts;
+ }
+
+ return 1;
+}
+