Merge branch 'bk/ancestry-path' into jc/branch-desc
authorJunio C Hamano <gitster@pobox.com>
Thu, 22 Sep 2011 03:13:08 +0000 (20:13 -0700)
committerJunio C Hamano <gitster@pobox.com>
Thu, 22 Sep 2011 03:13:13 +0000 (20:13 -0700)
* bk/ancestry-path:
t6019: avoid refname collision on case-insensitive systems
revision: do not include sibling history in --ancestry-path output
revision: keep track of the end-user input from the command line
rev-list: Demonstrate breakage with --ancestry-path --all

1  2 
revision.c
revision.h
diff --combined revision.c
index c46cfaa3e4d2f06fd67ccd71c7ba47891796fd60,48a2db439f193271aa757d5afcec0496cbcb1442..102456b009429eeecdee3a5f8f9a1a0404f1cffa
@@@ -133,8 -133,6 +133,8 @@@ void mark_parents_uninteresting(struct 
  
  static void add_pending_object_with_mode(struct rev_info *revs, struct object *obj, const char *name, unsigned mode)
  {
 +      if (!obj)
 +              return;
        if (revs->no_walk && (obj->flags & UNINTERESTING))
                revs->no_walk = 0;
        if (revs->reflog_info && obj->type == OBJ_COMMIT) {
@@@ -176,11 -174,8 +176,11 @@@ static struct object *get_reference(str
        struct object *object;
  
        object = parse_object(sha1);
 -      if (!object)
 +      if (!object) {
 +              if (revs->ignore_missing)
 +                      return object;
                die("bad object %s", name);
 +      }
        object->flags |= flags;
        return object;
  }
@@@ -328,7 -323,7 +328,7 @@@ static int rev_compare_tree(struct rev_
                 * tagged commit by specifying both --simplify-by-decoration
                 * and pathspec.
                 */
 -              if (!revs->prune_data)
 +              if (!revs->prune_data.nr)
                        return REV_TREE_SAME;
        }
  
@@@ -449,15 -444,15 +449,15 @@@ static void try_to_simplify_commit(stru
        commit->object.flags |= TREESAME;
  }
  
 -static void insert_by_date_cached(struct commit *p, struct commit_list **head,
 +static void commit_list_insert_by_date_cached(struct commit *p, struct commit_list **head,
                    struct commit_list *cached_base, struct commit_list **cache)
  {
        struct commit_list *new_entry;
  
        if (cached_base && p->date < cached_base->item->date)
 -              new_entry = insert_by_date(p, &cached_base->next);
 +              new_entry = commit_list_insert_by_date(p, &cached_base->next);
        else
 -              new_entry = insert_by_date(p, head);
 +              new_entry = commit_list_insert_by_date(p, head);
  
        if (cache && (!*cache || p->date < (*cache)->item->date))
                *cache = new_entry;
@@@ -499,7 -494,7 +499,7 @@@ static int add_parents_to_list(struct r
                        if (p->object.flags & SEEN)
                                continue;
                        p->object.flags |= SEEN;
 -                      insert_by_date_cached(p, list, cached_base, cache_ptr);
 +                      commit_list_insert_by_date_cached(p, list, cached_base, cache_ptr);
                }
                return 0;
        }
                p->object.flags |= left_flag;
                if (!(p->object.flags & SEEN)) {
                        p->object.flags |= SEEN;
 -                      insert_by_date_cached(p, list, cached_base, cache_ptr);
 +                      commit_list_insert_by_date_cached(p, list, cached_base, cache_ptr);
                }
                if (revs->first_parent_only)
                        break;
@@@ -540,7 -535,6 +540,7 @@@ static void cherry_pick_list(struct com
        int left_count = 0, right_count = 0;
        int left_first;
        struct patch_ids ids;
 +      unsigned cherry_flag;
  
        /* First count the commits on the left and on the right */
        for (p = list; p; p = p->next) {
  
        left_first = left_count < right_count;
        init_patch_ids(&ids);
 -      if (revs->diffopt.nr_paths) {
 -              ids.diffopts.nr_paths = revs->diffopt.nr_paths;
 -              ids.diffopts.paths = revs->diffopt.paths;
 -              ids.diffopts.pathlens = revs->diffopt.pathlens;
 -      }
 +      ids.diffopts.pathspec = revs->diffopt.pathspec;
  
        /* Compute patch-ids for one side */
        for (p = list; p; p = p->next) {
                commit->util = add_commit_patch_id(commit, &ids);
        }
  
 +      /* either cherry_mark or cherry_pick are true */
 +      cherry_flag = revs->cherry_mark ? PATCHSAME : SHOWN;
 +
        /* Check the other side */
        for (p = list; p; p = p->next) {
                struct commit *commit = p->item;
                if (!id)
                        continue;
                id->seen = 1;
 -              commit->object.flags |= SHOWN;
 +              commit->object.flags |= cherry_flag;
        }
  
        /* Now check the original side for seen ones */
                if (!ent)
                        continue;
                if (ent->seen)
 -                      commit->object.flags |= SHOWN;
 +                      commit->object.flags |= cherry_flag;
                commit->util = NULL;
        }
  
@@@ -729,32 -724,19 +729,36 @@@ static void limit_to_ancestry(struct co
   * to filter the result of "A..B" further to the ones that can actually
   * reach A.
   */
- static struct commit_list *collect_bottom_commits(struct commit_list *list)
+ static struct commit_list *collect_bottom_commits(struct rev_info *revs)
  {
-       struct commit_list *elem, *bottom = NULL;
-       for (elem = list; elem; elem = elem->next)
-               if (elem->item->object.flags & UNINTERESTING)
-                       commit_list_insert(elem->item, &bottom);
+       struct commit_list *bottom = NULL;
+       int i;
+       for (i = 0; i < revs->cmdline.nr; i++) {
+               struct rev_cmdline_entry *elem = &revs->cmdline.rev[i];
+               if ((elem->flags & UNINTERESTING) &&
+                   elem->item->type == OBJ_COMMIT)
+                       commit_list_insert((struct commit *)elem->item, &bottom);
+       }
        return bottom;
  }
  
 +/* Assumes either left_only or right_only is set */
 +static void limit_left_right(struct commit_list *list, struct rev_info *revs)
 +{
 +      struct commit_list *p;
 +
 +      for (p = list; p; p = p->next) {
 +              struct commit *commit = p->item;
 +
 +              if (revs->right_only) {
 +                      if (commit->object.flags & SYMMETRIC_LEFT)
 +                              commit->object.flags |= SHOWN;
 +              } else  /* revs->left_only is set */
 +                      if (!(commit->object.flags & SYMMETRIC_LEFT))
 +                              commit->object.flags |= SHOWN;
 +      }
 +}
 +
  static int limit_list(struct rev_info *revs)
  {
        int slop = SLOP;
        struct commit_list *bottom = NULL;
  
        if (revs->ancestry_path) {
-               bottom = collect_bottom_commits(list);
+               bottom = collect_bottom_commits(revs);
                if (!bottom)
                        die("--ancestry-path given but there are no bottom commits");
        }
                show(revs, newlist);
                show_early_output = NULL;
        }
 -      if (revs->cherry_pick)
 +      if (revs->cherry_pick || revs->cherry_mark)
                cherry_pick_list(newlist, revs);
  
 +      if (revs->left_only || revs->right_only)
 +              limit_left_right(newlist, revs);
 +
        if (bottom) {
                limit_to_ancestry(bottom, newlist);
                free_commit_list(bottom);
        return 0;
  }
  
+ static void add_rev_cmdline(struct rev_info *revs,
+                           struct object *item,
+                           const char *name,
+                           int whence,
+                           unsigned flags)
+ {
+       struct rev_cmdline_info *info = &revs->cmdline;
+       int nr = info->nr;
+       ALLOC_GROW(info->rev, nr + 1, info->alloc);
+       info->rev[nr].item = item;
+       info->rev[nr].name = name;
+       info->rev[nr].whence = whence;
+       info->rev[nr].flags = flags;
+       info->nr++;
+ }
  struct all_refs_cb {
        int all_flags;
        int warned_bad_reflog;
@@@ -834,6 -830,7 +855,7 @@@ static int handle_one_ref(const char *p
        struct all_refs_cb *cb = cb_data;
        struct object *object = get_reference(cb->all_revs, path, sha1,
                                              cb->all_flags);
+       add_rev_cmdline(cb->all_revs, object, path, REV_CMD_REF, cb->all_flags);
        add_pending_object(cb->all_revs, object, path);
        return 0;
  }
@@@ -845,12 -842,12 +867,12 @@@ static void init_all_refs_cb(struct all
        cb->all_flags = flags;
  }
  
 -static void handle_refs(struct rev_info *revs, unsigned flags,
 -              int (*for_each)(each_ref_fn, void *))
 +static void handle_refs(const char *submodule, struct rev_info *revs, unsigned flags,
 +              int (*for_each)(const char *, each_ref_fn, void *))
  {
        struct all_refs_cb cb;
        init_all_refs_cb(&cb, revs, flags);
 -      for_each(handle_one_ref, &cb);
 +      for_each(submodule, handle_one_ref, &cb);
  }
  
  static void handle_one_reflog_commit(unsigned char *sha1, void *cb_data)
                struct object *o = parse_object(sha1);
                if (o) {
                        o->flags |= cb->all_flags;
+                       /* ??? CMDLINEFLAGS ??? */
                        add_pending_object(cb->all_revs, o, "");
                }
                else if (!cb->warned_bad_reflog) {
@@@ -896,12 -894,13 +919,13 @@@ static void handle_reflog(struct rev_in
        for_each_reflog(handle_one_reflog, &cb);
  }
  
- static int add_parents_only(struct rev_info *revs, const char *arg, int flags)
+ static int add_parents_only(struct rev_info *revs, const char *arg_, int flags)
  {
        unsigned char sha1[20];
        struct object *it;
        struct commit *commit;
        struct commit_list *parents;
+       const char *arg = arg_;
  
        if (*arg == '^') {
                flags ^= UNINTERESTING;
                return 0;
        while (1) {
                it = get_reference(revs, arg, sha1, 0);
 +              if (!it && revs->ignore_missing)
 +                      return 0;
                if (it->type != OBJ_TAG)
                        break;
                if (!((struct tag*)it)->tagged)
        for (parents = commit->parents; parents; parents = parents->next) {
                it = &parents->item->object;
                it->flags |= flags;
+               add_rev_cmdline(revs, it, arg_, REV_CMD_PARENTS_ONLY, flags);
                add_pending_object(revs, it, arg);
        }
        return 1;
@@@ -948,7 -946,6 +973,7 @@@ void init_revisions(struct rev_info *re
        revs->min_age = -1;
        revs->skip_count = -1;
        revs->max_count = -1;
 +      revs->max_parents = -1;
  
        revs->commit_format = CMIT_FMT_DEFAULT;
  
                revs->diffopt.prefix = prefix;
                revs->diffopt.prefix_length = strlen(prefix);
        }
 +
 +      revs->notes_opt.use_default_notes = -1;
  }
  
  static void add_pending_commit_list(struct rev_info *revs,
@@@ -1003,7 -998,7 +1028,7 @@@ static void prepare_show_merge(struct r
                struct cache_entry *ce = active_cache[i];
                if (!ce_stage(ce))
                        continue;
 -              if (ce_path_match(ce, revs->prune_data)) {
 +              if (ce_path_match(ce, &revs->prune_data)) {
                        prune_num++;
                        prune = xrealloc(prune, sizeof(*prune) * prune_num);
                        prune[prune_num-2] = ce->name;
                       ce_same_name(ce, active_cache[i+1]))
                        i++;
        }
 -      revs->prune_data = prune;
 +      free_pathspec(&revs->prune_data);
 +      init_pathspec(&revs->prune_data, prune);
        revs->limited = 1;
  }
  
- int handle_revision_arg(const char *arg, struct rev_info *revs,
+ int handle_revision_arg(const char *arg_, struct rev_info *revs,
                        int flags,
                        int cant_be_filename)
  {
        struct object *object;
        unsigned char sha1[20];
        int local_flags;
+       const char *arg = arg_;
  
        dotdot = strstr(arg, "..");
        if (dotdot) {
                const char *this = arg;
                int symmetric = *next == '.';
                unsigned int flags_exclude = flags ^ UNINTERESTING;
+               unsigned int a_flags;
  
                *dotdot = 0;
                next += symmetric;
                        a = lookup_commit_reference(from_sha1);
                        b = lookup_commit_reference(sha1);
                        if (!a || !b) {
 +                              if (revs->ignore_missing)
 +                                      return 0;
                                die(symmetric ?
                                    "Invalid symmetric difference expression %s...%s" :
                                    "Invalid revision range %s..%s",
                                add_pending_commit_list(revs, exclude,
                                                        flags_exclude);
                                free_commit_list(exclude);
-                               a->object.flags |= flags | SYMMETRIC_LEFT;
+                               a_flags = flags | SYMMETRIC_LEFT;
                        } else
-                               a->object.flags |= flags_exclude;
+                               a_flags = flags_exclude;
+                       a->object.flags |= a_flags;
                        b->object.flags |= flags;
+                       add_rev_cmdline(revs, &a->object, this,
+                                       REV_CMD_LEFT, a_flags);
+                       add_rev_cmdline(revs, &b->object, next,
+                                       REV_CMD_RIGHT, flags);
                        add_pending_object(revs, &a->object, this);
                        add_pending_object(revs, &b->object, next);
                        return 0;
                arg++;
        }
        if (get_sha1_with_mode(arg, sha1, &mode))
 -              return -1;
 +              return revs->ignore_missing ? 0 : -1;
        if (!cant_be_filename)
                verify_non_filename(revs->prefix, arg);
        object = get_reference(revs, arg, sha1, flags ^ local_flags);
+       add_rev_cmdline(revs, object, arg_, REV_CMD_REV, flags ^ local_flags);
        add_pending_object_with_mode(revs, object, arg, mode);
        return 0;
  }
  
 -static void read_pathspec_from_stdin(struct rev_info *revs, struct strbuf *sb, const char ***prune_data)
 -{
 -      const char **prune = *prune_data;
 -      int prune_nr;
 -      int prune_alloc;
 +struct cmdline_pathspec {
 +      int alloc;
 +      int nr;
 +      const char **path;
 +};
  
 -      /* count existing ones */
 -      if (!prune)
 -              prune_nr = 0;
 -      else
 -              for (prune_nr = 0; prune[prune_nr]; prune_nr++)
 -                      ;
 -      prune_alloc = prune_nr; /* not really, but we do not know */
 +static void append_prune_data(struct cmdline_pathspec *prune, const char **av)
 +{
 +      while (*av) {
 +              ALLOC_GROW(prune->path, prune->nr+1, prune->alloc);
 +              prune->path[prune->nr++] = *(av++);
 +      }
 +}
  
 +static void read_pathspec_from_stdin(struct rev_info *revs, struct strbuf *sb,
 +                                   struct cmdline_pathspec *prune)
 +{
        while (strbuf_getwholeline(sb, stdin, '\n') != EOF) {
                int len = sb->len;
                if (len && sb->buf[len - 1] == '\n')
                        sb->buf[--len] = '\0';
 -              ALLOC_GROW(prune, prune_nr+1, prune_alloc);
 -              prune[prune_nr++] = xstrdup(sb->buf);
 -      }
 -      if (prune) {
 -              ALLOC_GROW(prune, prune_nr+1, prune_alloc);
 -              prune[prune_nr] = NULL;
 +              ALLOC_GROW(prune->path, prune->nr+1, prune->alloc);
 +              prune->path[prune->nr++] = xstrdup(sb->buf);
        }
 -      *prune_data = prune;
  }
  
 -static void read_revisions_from_stdin(struct rev_info *revs, const char ***prune)
 +static void read_revisions_from_stdin(struct rev_info *revs,
 +                                    struct cmdline_pathspec *prune)
  {
        struct strbuf sb;
        int seen_dashdash = 0;
@@@ -1180,60 -1181,44 +1213,60 @@@ static int handle_revision_opt(struct r
                               int *unkc, const char **unkv)
  {
        const char *arg = argv[0];
 +      const char *optarg;
 +      int argcount;
  
        /* 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") ||
 -          !strcmp(arg, "--bisect"))
 +          !strcmp(arg, "--bisect") || !prefixcmp(arg, "--glob=") ||
 +          !prefixcmp(arg, "--branches=") || !prefixcmp(arg, "--tags=") ||
 +          !prefixcmp(arg, "--remotes="))
        {
                unkv[(*unkc)++] = arg;
                return 1;
        }
  
 -      if (!prefixcmp(arg, "--max-count=")) {
 -              revs->max_count = atoi(arg + 12);
 -      } else if (!prefixcmp(arg, "--skip=")) {
 -              revs->skip_count = atoi(arg + 7);
 +      if ((argcount = parse_long_opt("max-count", argv, &optarg))) {
 +              revs->max_count = atoi(optarg);
 +              revs->no_walk = 0;
 +              return argcount;
 +      } else if ((argcount = parse_long_opt("skip", argv, &optarg))) {
 +              revs->skip_count = atoi(optarg);
 +              return argcount;
        } else if ((*arg == '-') && isdigit(arg[1])) {
        /* accept -<digit>, like traditional "head" */
                revs->max_count = atoi(arg + 1);
 +              revs->no_walk = 0;
        } else if (!strcmp(arg, "-n")) {
                if (argc <= 1)
                        return error("-n requires an argument");
                revs->max_count = atoi(argv[1]);
 +              revs->no_walk = 0;
                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);
 +              revs->no_walk = 0;
 +      } else if ((argcount = parse_long_opt("max-age", argv, &optarg))) {
 +              revs->max_age = atoi(optarg);
 +              return argcount;
 +      } else if ((argcount = parse_long_opt("since", argv, &optarg))) {
 +              revs->max_age = approxidate(optarg);
 +              return argcount;
 +      } else if ((argcount = parse_long_opt("after", argv, &optarg))) {
 +              revs->max_age = approxidate(optarg);
 +              return argcount;
 +      } else if ((argcount = parse_long_opt("min-age", argv, &optarg))) {
 +              revs->min_age = atoi(optarg);
 +              return argcount;
 +      } else if ((argcount = parse_long_opt("before", argv, &optarg))) {
 +              revs->min_age = approxidate(optarg);
 +              return argcount;
 +      } else if ((argcount = parse_long_opt("until", argv, &optarg))) {
 +              revs->min_age = approxidate(optarg);
 +              return argcount;
        } else if (!strcmp(arg, "--first-parent")) {
                revs->first_parent_only = 1;
        } else if (!strcmp(arg, "--ancestry-path")) {
        } else if (!strcmp(arg, "--remove-empty")) {
                revs->remove_empty_trees = 1;
        } else if (!strcmp(arg, "--merges")) {
 -              revs->merges_only = 1;
 +              revs->min_parents = 2;
        } else if (!strcmp(arg, "--no-merges")) {
 -              revs->no_merges = 1;
 +              revs->max_parents = 1;
 +      } else if (!prefixcmp(arg, "--min-parents=")) {
 +              revs->min_parents = atoi(arg+14);
 +      } else if (!prefixcmp(arg, "--no-min-parents")) {
 +              revs->min_parents = 0;
 +      } else if (!prefixcmp(arg, "--max-parents=")) {
 +              revs->max_parents = atoi(arg+14);
 +      } else if (!prefixcmp(arg, "--no-max-parents")) {
 +              revs->max_parents = -1;
        } else if (!strcmp(arg, "--boundary")) {
                revs->boundary = 1;
        } else if (!strcmp(arg, "--left-right")) {
                revs->left_right = 1;
 +      } else if (!strcmp(arg, "--left-only")) {
 +              if (revs->right_only)
 +                      die("--left-only is incompatible with --right-only"
 +                          " or --cherry");
 +              revs->left_only = 1;
 +      } else if (!strcmp(arg, "--right-only")) {
 +              if (revs->left_only)
 +                      die("--right-only is incompatible with --left-only");
 +              revs->right_only = 1;
 +      } else if (!strcmp(arg, "--cherry")) {
 +              if (revs->left_only)
 +                      die("--cherry is incompatible with --left-only");
 +              revs->cherry_mark = 1;
 +              revs->right_only = 1;
 +              revs->max_parents = 1;
 +              revs->limited = 1;
 +      } else if (!strcmp(arg, "--count")) {
 +              revs->count = 1;
 +      } else if (!strcmp(arg, "--cherry-mark")) {
 +              if (revs->cherry_pick)
 +                      die("--cherry-mark is incompatible with --cherry-pick");
 +              revs->cherry_mark = 1;
 +              revs->limited = 1; /* needs limit_list() */
        } else if (!strcmp(arg, "--cherry-pick")) {
 +              if (revs->cherry_mark)
 +                      die("--cherry-pick is incompatible with --cherry-mark");
                revs->cherry_pick = 1;
                revs->limited = 1;
        } else if (!strcmp(arg, "--objects")) {
                revs->pretty_given = 1;
                get_commit_format(arg+8, revs);
        } else if (!prefixcmp(arg, "--pretty=") || !prefixcmp(arg, "--format=")) {
 +              /*
 +               * Detached form ("--pretty X" as opposed to "--pretty=X")
 +               * not allowed, since the argument is optional.
 +               */
                revs->verbose_header = 1;
                revs->pretty_given = 1;
                get_commit_format(arg+9, revs);
 -      } else if (!strcmp(arg, "--show-notes")) {
 +      } else if (!strcmp(arg, "--show-notes") || !strcmp(arg, "--notes")) {
                revs->show_notes = 1;
                revs->show_notes_given = 1;
 -      } else if (!prefixcmp(arg, "--show-notes=")) {
 +              revs->notes_opt.use_default_notes = 1;
 +      } else if (!prefixcmp(arg, "--show-notes=") ||
 +                 !prefixcmp(arg, "--notes=")) {
                struct strbuf buf = STRBUF_INIT;
                revs->show_notes = 1;
                revs->show_notes_given = 1;
 -              if (!revs->notes_opt.extra_notes_refs)
 -                      revs->notes_opt.extra_notes_refs = xcalloc(1, sizeof(struct string_list));
 -              if (!prefixcmp(arg+13, "refs/"))
 -                      /* happy */;
 -              else if (!prefixcmp(arg+13, "notes/"))
 -                      strbuf_addstr(&buf, "refs/");
 +              if (!prefixcmp(arg, "--show-notes")) {
 +                      if (revs->notes_opt.use_default_notes < 0)
 +                              revs->notes_opt.use_default_notes = 1;
 +                      strbuf_addstr(&buf, arg+13);
 +              }
                else
 -                      strbuf_addstr(&buf, "refs/notes/");
 -              strbuf_addstr(&buf, arg+13);
 -              string_list_append(strbuf_detach(&buf, NULL),
 -                                 revs->notes_opt.extra_notes_refs);
 +                      strbuf_addstr(&buf, arg+8);
 +              expand_notes_ref(&buf);
 +              string_list_append(&revs->notes_opt.extra_notes_refs,
 +                                 strbuf_detach(&buf, NULL));
        } else if (!strcmp(arg, "--no-notes")) {
                revs->show_notes = 0;
                revs->show_notes_given = 1;
 +              revs->notes_opt.use_default_notes = -1;
 +              /* we have been strdup'ing ourselves, so trick
 +               * string_list into free()ing strings */
 +              revs->notes_opt.extra_notes_refs.strdup_strings = 1;
 +              string_list_clear(&revs->notes_opt.extra_notes_refs, 0);
 +              revs->notes_opt.extra_notes_refs.strdup_strings = 0;
        } else if (!strcmp(arg, "--standard-notes")) {
                revs->show_notes_given = 1;
 -              revs->notes_opt.suppress_default_notes = 0;
 +              revs->notes_opt.use_default_notes = 1;
        } else if (!strcmp(arg, "--no-standard-notes")) {
 -              revs->notes_opt.suppress_default_notes = 1;
 +              revs->notes_opt.use_default_notes = 0;
        } else if (!strcmp(arg, "--oneline")) {
                revs->verbose_header = 1;
                get_commit_format("oneline", revs);
                        revs->abbrev = 40;
        } else if (!strcmp(arg, "--abbrev-commit")) {
                revs->abbrev_commit = 1;
 +              revs->abbrev_commit_given = 1;
 +      } else if (!strcmp(arg, "--no-abbrev-commit")) {
 +              revs->abbrev_commit = 0;
        } else if (!strcmp(arg, "--full-diff")) {
                revs->diff = 1;
                revs->full_diff = 1;
        } else if (!strcmp(arg, "--relative-date")) {
                revs->date_mode = DATE_RELATIVE;
                revs->date_mode_explicit = 1;
 -      } else if (!strncmp(arg, "--date=", 7)) {
 -              revs->date_mode = parse_date_format(arg + 7);
 +      } else if ((argcount = parse_long_opt("date", argv, &optarg))) {
 +              revs->date_mode = parse_date_format(optarg);
                revs->date_mode_explicit = 1;
 +              return argcount;
        } else if (!strcmp(arg, "--log-size")) {
                revs->show_log_size = 1;
        }
        /*
         * Grepping the commit log
         */
 -      else if (!prefixcmp(arg, "--author=")) {
 -              add_header_grep(revs, GREP_HEADER_AUTHOR, arg+9);
 -      } else if (!prefixcmp(arg, "--committer=")) {
 -              add_header_grep(revs, GREP_HEADER_COMMITTER, arg+12);
 -      } else if (!prefixcmp(arg, "--grep=")) {
 -              add_message_grep(revs, arg+7);
 +      else if ((argcount = parse_long_opt("author", argv, &optarg))) {
 +              add_header_grep(revs, GREP_HEADER_AUTHOR, optarg);
 +              return argcount;
 +      } else if ((argcount = parse_long_opt("committer", argv, &optarg))) {
 +              add_header_grep(revs, GREP_HEADER_COMMITTER, optarg);
 +              return argcount;
 +      } else if ((argcount = parse_long_opt("grep", argv, &optarg))) {
 +              add_message_grep(revs, optarg);
 +              return argcount;
        } else if (!strcmp(arg, "--extended-regexp") || !strcmp(arg, "-E")) {
                revs->grep_filter.regflags |= REG_EXTENDED;
        } else if (!strcmp(arg, "--regexp-ignore-case") || !strcmp(arg, "-i")) {
                revs->grep_filter.fixed = 1;
        } else if (!strcmp(arg, "--all-match")) {
                revs->grep_filter.all_match = 1;
 -      } else if (!prefixcmp(arg, "--encoding=")) {
 -              arg += 11;
 -              if (strcmp(arg, "none"))
 -                      git_log_output_encoding = xstrdup(arg);
 +      } else if ((argcount = parse_long_opt("encoding", argv, &optarg))) {
 +              if (strcmp(optarg, "none"))
 +                      git_log_output_encoding = xstrdup(optarg);
                else
                        git_log_output_encoding = "";
 +              return argcount;
        } else if (!strcmp(arg, "--reverse")) {
                revs->reverse ^= 1;
        } else if (!strcmp(arg, "--children")) {
                revs->children.name = "children";
                revs->limited = 1;
 +      } else if (!strcmp(arg, "--ignore-missing")) {
 +              revs->ignore_missing = 1;
        } else {
                int opts = diff_opt_parse(&revs->diffopt, argv, argc);
                if (!opts)
@@@ -1512,77 -1444,42 +1545,77 @@@ void parse_revision_opt(struct rev_inf
        ctx->argc -= n;
  }
  
 -static int for_each_bad_bisect_ref(each_ref_fn fn, void *cb_data)
 +static int for_each_bad_bisect_ref(const char *submodule, each_ref_fn fn, void *cb_data)
  {
 -      return for_each_ref_in("refs/bisect/bad", fn, cb_data);
 +      return for_each_ref_in_submodule(submodule, "refs/bisect/bad", fn, cb_data);
  }
  
 -static int for_each_good_bisect_ref(each_ref_fn fn, void *cb_data)
 +static int for_each_good_bisect_ref(const char *submodule, each_ref_fn fn, void *cb_data)
  {
 -      return for_each_ref_in("refs/bisect/good", fn, cb_data);
 +      return for_each_ref_in_submodule(submodule, "refs/bisect/good", fn, cb_data);
  }
  
 -static void append_prune_data(const char ***prune_data, const char **av)
 +static int handle_revision_pseudo_opt(const char *submodule,
 +                              struct rev_info *revs,
 +                              int argc, const char **argv, int *flags)
  {
 -      const char **prune = *prune_data;
 -      int prune_nr;
 -      int prune_alloc;
 +      const char *arg = argv[0];
 +      const char *optarg;
 +      int argcount;
  
 -      if (!prune) {
 -              *prune_data = av;
 -              return;
 +      /*
 +       * NOTE!
 +       *
 +       * Commands like "git shortlog" will not accept the options below
 +       * unless parse_revision_opt queues them (as opposed to erroring
 +       * out).
 +       *
 +       * When implementing your new pseudo-option, remember to
 +       * register it in the list at the top of handle_revision_opt.
 +       */
 +      if (!strcmp(arg, "--all")) {
 +              handle_refs(submodule, revs, *flags, for_each_ref_submodule);
 +              handle_refs(submodule, revs, *flags, head_ref_submodule);
 +      } else if (!strcmp(arg, "--branches")) {
 +              handle_refs(submodule, revs, *flags, for_each_branch_ref_submodule);
 +      } else if (!strcmp(arg, "--bisect")) {
 +              handle_refs(submodule, revs, *flags, for_each_bad_bisect_ref);
 +              handle_refs(submodule, revs, *flags ^ UNINTERESTING, for_each_good_bisect_ref);
 +              revs->bisect = 1;
 +      } else if (!strcmp(arg, "--tags")) {
 +              handle_refs(submodule, revs, *flags, for_each_tag_ref_submodule);
 +      } else if (!strcmp(arg, "--remotes")) {
 +              handle_refs(submodule, revs, *flags, for_each_remote_ref_submodule);
 +      } else if ((argcount = parse_long_opt("glob", argv, &optarg))) {
 +              struct all_refs_cb cb;
 +              init_all_refs_cb(&cb, revs, *flags);
 +              for_each_glob_ref(handle_one_ref, optarg, &cb);
 +              return argcount;
 +      } else if (!prefixcmp(arg, "--branches=")) {
 +              struct all_refs_cb cb;
 +              init_all_refs_cb(&cb, revs, *flags);
 +              for_each_glob_ref_in(handle_one_ref, arg + 11, "refs/heads/", &cb);
 +      } else if (!prefixcmp(arg, "--tags=")) {
 +              struct all_refs_cb cb;
 +              init_all_refs_cb(&cb, revs, *flags);
 +              for_each_glob_ref_in(handle_one_ref, arg + 7, "refs/tags/", &cb);
 +      } else if (!prefixcmp(arg, "--remotes=")) {
 +              struct all_refs_cb cb;
 +              init_all_refs_cb(&cb, revs, *flags);
 +              for_each_glob_ref_in(handle_one_ref, arg + 10, "refs/remotes/", &cb);
 +      } else if (!strcmp(arg, "--reflog")) {
 +              handle_reflog(revs, *flags);
 +      } else if (!strcmp(arg, "--not")) {
 +              *flags ^= UNINTERESTING;
 +      } else if (!strcmp(arg, "--no-walk")) {
 +              revs->no_walk = 1;
 +      } else if (!strcmp(arg, "--do-walk")) {
 +              revs->no_walk = 0;
 +      } else {
 +              return 0;
        }
  
 -      /* count existing ones */
 -      for (prune_nr = 0; prune[prune_nr]; prune_nr++)
 -              ;
 -      prune_alloc = prune_nr; /* not really, but we do not know */
 -
 -      while (*av) {
 -              ALLOC_GROW(prune, prune_nr+1, prune_alloc);
 -              prune[prune_nr++] = *av;
 -              av++;
 -      }
 -      if (prune) {
 -              ALLOC_GROW(prune, prune_nr+1, prune_alloc);
 -              prune[prune_nr] = NULL;
 -      }
 -      *prune_data = prune;
 +      return 1;
  }
  
  /*
  int setup_revisions(int argc, const char **argv, struct rev_info *revs, struct setup_revision_opt *opt)
  {
        int i, flags, left, seen_dashdash, read_from_stdin, got_rev_arg = 0;
 -      const char **prune_data = NULL;
 +      struct cmdline_pathspec prune_data;
 +      const char *submodule = NULL;
 +
 +      memset(&prune_data, 0, sizeof(prune_data));
 +      if (opt)
 +              submodule = opt->submodule;
  
        /* First, search for "--" */
        seen_dashdash = 0;
                argv[i] = NULL;
                argc = i;
                if (argv[i + 1])
 -                      prune_data = argv + i + 1;
 +                      append_prune_data(&prune_data, argv + i + 1);
                seen_dashdash = 1;
                break;
        }
                if (*arg == '-') {
                        int opts;
  
 -                      if (!strcmp(arg, "--all")) {
 -                              handle_refs(revs, flags, for_each_ref);
 -                              handle_refs(revs, flags, head_ref);
 -                              continue;
 -                      }
 -                      if (!strcmp(arg, "--branches")) {
 -                              handle_refs(revs, flags, for_each_branch_ref);
 -                              continue;
 -                      }
 -                      if (!strcmp(arg, "--bisect")) {
 -                              handle_refs(revs, flags, for_each_bad_bisect_ref);
 -                              handle_refs(revs, flags ^ UNINTERESTING, for_each_good_bisect_ref);
 -                              revs->bisect = 1;
 -                              continue;
 -                      }
 -                      if (!strcmp(arg, "--tags")) {
 -                              handle_refs(revs, flags, for_each_tag_ref);
 -                              continue;
 -                      }
 -                      if (!strcmp(arg, "--remotes")) {
 -                              handle_refs(revs, flags, for_each_remote_ref);
 -                              continue;
 -                      }
 -                      if (!prefixcmp(arg, "--glob=")) {
 -                              struct all_refs_cb cb;
 -                              init_all_refs_cb(&cb, revs, flags);
 -                              for_each_glob_ref(handle_one_ref, arg + 7, &cb);
 -                              continue;
 -                      }
 -                      if (!prefixcmp(arg, "--branches=")) {
 -                              struct all_refs_cb cb;
 -                              init_all_refs_cb(&cb, revs, flags);
 -                              for_each_glob_ref_in(handle_one_ref, arg + 11, "refs/heads/", &cb);
 -                              continue;
 -                      }
 -                      if (!prefixcmp(arg, "--tags=")) {
 -                              struct all_refs_cb cb;
 -                              init_all_refs_cb(&cb, revs, flags);
 -                              for_each_glob_ref_in(handle_one_ref, arg + 7, "refs/tags/", &cb);
 -                              continue;
 -                      }
 -                      if (!prefixcmp(arg, "--remotes=")) {
 -                              struct all_refs_cb cb;
 -                              init_all_refs_cb(&cb, revs, flags);
 -                              for_each_glob_ref_in(handle_one_ref, arg + 10, "refs/remotes/", &cb);
 -                              continue;
 -                      }
 -                      if (!strcmp(arg, "--reflog")) {
 -                              handle_reflog(revs, flags);
 -                              continue;
 -                      }
 -                      if (!strcmp(arg, "--not")) {
 -                              flags ^= UNINTERESTING;
 -                              continue;
 -                      }
 -                      if (!strcmp(arg, "--no-walk")) {
 -                              revs->no_walk = 1;
 -                              continue;
 -                      }
 -                      if (!strcmp(arg, "--do-walk")) {
 -                              revs->no_walk = 0;
 +                      opts = handle_revision_pseudo_opt(submodule,
 +                                              revs, argc - i, argv + i,
 +                                              &flags);
 +                      if (opts > 0) {
 +                              i += opts - 1;
                                continue;
                        }
 +
                        if (!strcmp(arg, "--stdin")) {
                                if (revs->disable_stdin) {
                                        argv[left++] = arg;
                        got_rev_arg = 1;
        }
  
 -      if (prune_data)
 -              revs->prune_data = get_pathspec(revs->prefix, prune_data);
 +      if (prune_data.nr) {
 +              /*
 +               * If we need to introduce the magic "a lone ':' means no
 +               * pathspec whatsoever", here is the place to do so.
 +               *
 +               * if (prune_data.nr == 1 && !strcmp(prune_data[0], ":")) {
 +               *      prune_data.nr = 0;
 +               *      prune_data.alloc = 0;
 +               *      free(prune_data.path);
 +               *      prune_data.path = NULL;
 +               * } else {
 +               *      terminate prune_data.alloc with NULL and
 +               *      call init_pathspec() to set revs->prune_data here.
 +               * }
 +               */
 +              ALLOC_GROW(prune_data.path, prune_data.nr+1, prune_data.alloc);
 +              prune_data.path[prune_data.nr++] = NULL;
 +              init_pathspec(&revs->prune_data,
 +                            get_pathspec(revs->prefix, prune_data.path));
 +      }
  
        if (revs->def == NULL)
                revs->def = opt ? opt->def : NULL;
        if (revs->topo_order)
                revs->limited = 1;
  
 -      if (revs->prune_data) {
 -              diff_tree_setup_paths(revs->prune_data, &revs->pruning);
 +      if (revs->prune_data.nr) {
 +              diff_tree_setup_paths(revs->prune_data.raw, &revs->pruning);
                /* Can't prune commits with rename following: the paths change.. */
                if (!DIFF_OPT_TST(&revs->diffopt, FOLLOW_RENAMES))
                        revs->prune = 1;
                if (!revs->full_diff)
 -                      diff_tree_setup_paths(revs->prune_data, &revs->diffopt);
 +                      diff_tree_setup_paths(revs->prune_data.raw, &revs->diffopt);
        }
        if (revs->combine_merges)
                revs->ignore_merges = 0;
@@@ -1964,7 -1893,7 +1997,7 @@@ int prepare_revision_walk(struct rev_in
                if (commit) {
                        if (!(commit->object.flags & SEEN)) {
                                commit->object.flags |= SEEN;
 -                              insert_by_date(commit, &revs->commits);
 +                              commit_list_insert_by_date(commit, &revs->commits);
                        }
                }
                e++;
  enum rewrite_result {
        rewrite_one_ok,
        rewrite_one_noparents,
 -      rewrite_one_error,
 +      rewrite_one_error
  };
  
  static enum rewrite_result rewrite_one(struct rev_info *revs, struct commit **pp)
@@@ -2058,15 -1987,10 +2091,15 @@@ enum commit_action get_commit_action(st
                return commit_ignore;
        if (revs->min_age != -1 && (commit->date > revs->min_age))
                return commit_ignore;
 -      if (revs->no_merges && commit->parents && commit->parents->next)
 -              return commit_ignore;
 -      if (revs->merges_only && !(commit->parents && commit->parents->next))
 -              return commit_ignore;
 +      if (revs->min_parents || (revs->max_parents >= 0)) {
 +              int n = 0;
 +              struct commit_list *p;
 +              for (p = commit->parents; p; p = p->next)
 +                      n++;
 +              if ((n < revs->min_parents) ||
 +                  ((revs->max_parents >= 0) && (n > revs->max_parents)))
 +                      return commit_ignore;
 +      }
        if (!commit_match(commit, revs))
                return commit_ignore;
        if (revs->prune && revs->dense) {
@@@ -2108,10 -2032,8 +2141,10 @@@ static struct commit *get_revision_1(st
                revs->commits = entry->next;
                free(entry);
  
 -              if (revs->reflog_info)
 +              if (revs->reflog_info) {
                        fake_reflog_parent(revs->reflog_info, commit);
 +                      commit->object.flags &= ~(ADDED | SEEN | SHOWN);
 +              }
  
                /*
                 * If we haven't done the list limiting, we need to look at
@@@ -2313,32 -2235,3 +2346,32 @@@ struct commit *get_revision(struct rev_
                graph_update(revs->graph, c);
        return c;
  }
 +
 +char *get_revision_mark(const struct rev_info *revs, const struct commit *commit)
 +{
 +      if (commit->object.flags & BOUNDARY)
 +              return "-";
 +      else if (commit->object.flags & UNINTERESTING)
 +              return "^";
 +      else if (commit->object.flags & PATCHSAME)
 +              return "=";
 +      else if (!revs || revs->left_right) {
 +              if (commit->object.flags & SYMMETRIC_LEFT)
 +                      return "<";
 +              else
 +                      return ">";
 +      } else if (revs->graph)
 +              return "*";
 +      else if (revs->cherry_mark)
 +              return "+";
 +      return "";
 +}
 +
 +void put_revision_mark(const struct rev_info *revs, const struct commit *commit)
 +{
 +      char *mark = get_revision_mark(revs, commit);
 +      if (!strlen(mark))
 +              return;
 +      fputs(mark, stdout);
 +      putchar(' ');
 +}
diff --combined revision.h
index 3d64adad18e2c889b7a7b7367f99c239f958dc70,031cc7c81d37268e2cd8d641b4b9cb395cd61601..93d31556cb44d3e4c5162d21c8e92d572a36508e
@@@ -14,8 -14,7 +14,8 @@@
  #define CHILD_SHOWN   (1u<<6)
  #define ADDED         (1u<<7) /* Parents already parsed and added? */
  #define SYMMETRIC_LEFT        (1u<<8)
 -#define ALL_REV_FLAGS ((1u<<9)-1)
 +#define PATCHSAME     (1u<<9)
 +#define ALL_REV_FLAGS ((1u<<10)-1)
  
  #define DECORATE_SHORT_REFS   1
  #define DECORATE_FULL_REFS    2
@@@ -24,6 -23,23 +24,23 @@@ struct rev_info
  struct log_info;
  struct string_list;
  
+ struct rev_cmdline_info {
+       unsigned int nr;
+       unsigned int alloc;
+       struct rev_cmdline_entry {
+               struct object *item;
+               const char *name;
+               enum {
+                       REV_CMD_REF,
+                       REV_CMD_PARENTS_ONLY,
+                       REV_CMD_LEFT,
+                       REV_CMD_RIGHT,
+                       REV_CMD_REV
+               } whence;
+               unsigned flags;
+       } *rev;
+ };
  struct rev_info {
        /* Starting list */
        struct commit_list *commits;
        /* Parents of shown commits */
        struct object_array boundary_commits;
  
+       /* The end-points specified by the end user */
+       struct rev_cmdline_info cmdline;
        /* Basic information */
        const char *prefix;
        const char *def;
 -      void *prune_data;
 -      unsigned int early_output;
 +      struct pathspec prune_data;
 +      unsigned int    early_output:1,
 +                      ignore_missing:1;
  
        /* Traversal flags */
        unsigned int    dense:1,
                        prune:1,
 -                      no_merges:1,
 -                      merges_only:1,
                        no_walk:1,
                        show_all:1,
                        remove_empty_trees:1,
                        limited:1,
                        unpacked:1,
                        boundary:2,
 +                      count:1,
                        left_right:1,
 +                      left_only:1,
 +                      right_only:1,
                        rewrite_parents:1,
                        print_parents:1,
                        show_source:1,
@@@ -68,7 -85,6 +88,7 @@@
                        reverse:1,
                        reverse_output_stage:1,
                        cherry_pick:1,
 +                      cherry_mark:1,
                        bisect:1,
                        ancestry_path:1,
                        first_parent_only:1;
                        show_notes_given:1,
                        pretty_given:1,
                        abbrev_commit:1,
 +                      abbrev_commit_given:1,
                        use_terminator:1,
                        missing_newline:1,
 -                      date_mode_explicit:1;
 +                      date_mode_explicit:1,
 +                      preserve_subject:1;
        unsigned int    disable_stdin:1;
  
        enum date_mode date_mode;
        int max_count;
        unsigned long max_age;
        unsigned long min_age;
 +      int min_parents;
 +      int max_parents;
  
        /* diff info for patches and for paths limiting */
        struct diff_options diffopt;
  
        /* notes-specific options: which refs to show */
        struct display_notes_opt notes_opt;
 +
 +      /* commit counts */
 +      int count_left;
 +      int count_right;
 +      int count_same;
  };
  
  #define REV_TREE_SAME         0
@@@ -159,7 -166,6 +179,7 @@@ extern volatile show_early_output_fn_t 
  struct setup_revision_opt {
        const char *def;
        void (*tweak)(struct rev_info *, struct setup_revision_opt *);
 +      const char *submodule;
  };
  
  extern void init_revisions(struct rev_info *revs, const char *prefix);
@@@ -171,8 -177,6 +191,8 @@@ extern int handle_revision_arg(const ch
  
  extern int prepare_revision_walk(struct rev_info *revs);
  extern struct commit *get_revision(struct rev_info *revs);
 +extern char *get_revision_mark(const struct rev_info *revs, const struct commit *commit);
 +extern void put_revision_mark(const struct rev_info *revs, const struct commit *commit);
  
  extern void mark_parents_uninteresting(struct commit *commit);
  extern void mark_tree_uninteresting(struct tree *tree);