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

revision.c
revision.h
t/t6019-rev-list-ancestry-path.sh

index c46cfaa..102456b 100644 (file)
@@ -729,12 +729,16 @@ static void limit_to_ancestry(struct commit_list *bottom, struct commit_list *li
  * 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;
 }
 
@@ -765,7 +769,7 @@ static int limit_list(struct rev_info *revs)
        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");
        }
@@ -822,6 +826,23 @@ static int limit_list(struct rev_info *revs)
        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 +855,7 @@ static int handle_one_ref(const char *path, const unsigned char *sha1, int flag,
        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;
 }
@@ -860,6 +882,7 @@ 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 +919,13 @@ static void handle_reflog(struct rev_info *revs, unsigned flags)
        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;
@@ -925,6 +949,7 @@ static int add_parents_only(struct rev_info *revs, const char *arg, int flags)
        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;
@@ -1018,7 +1043,7 @@ static void prepare_show_merge(struct rev_info *revs)
        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)
 {
@@ -1027,6 +1052,7 @@ int handle_revision_arg(const char *arg, struct rev_info *revs,
        struct object *object;
        unsigned char sha1[20];
        int local_flags;
+       const char *arg = arg_;
 
        dotdot = strstr(arg, "..");
        if (dotdot) {
@@ -1035,6 +1061,7 @@ int handle_revision_arg(const char *arg, struct rev_info *revs,
                const char *this = arg;
                int symmetric = *next == '.';
                unsigned int flags_exclude = flags ^ UNINTERESTING;
+               unsigned int a_flags;
 
                *dotdot = 0;
                next += symmetric;
@@ -1069,10 +1096,15 @@ int handle_revision_arg(const char *arg, struct rev_info *revs,
                                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;
@@ -1103,6 +1135,7 @@ int handle_revision_arg(const char *arg, struct rev_info *revs,
        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;
 }
index 3d64ada..93d3155 100644 (file)
@@ -24,6 +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;
@@ -32,6 +49,9 @@ struct rev_info {
        /* 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;
index 7641029..39b4cb0 100755 (executable)
@@ -70,4 +70,42 @@ test_expect_success 'rev-list --ancestry-patch D..M -- M.t' '
        test_cmp expect actual
 '
 
+#   b---bc
+#  / \ /
+# a   X
+#  \ / \
+#   c---cb
+#
+# All refnames prefixed with 'x' to avoid confusion with the tags
+# generated by test_commit on case-insensitive systems.
+test_expect_success 'setup criss-cross' '
+       mkdir criss-cross &&
+       (cd criss-cross &&
+        git init &&
+        test_commit A &&
+        git checkout -b xb master &&
+        test_commit B &&
+        git checkout -b xc master &&
+        test_commit C &&
+        git checkout -b xbc xb -- &&
+        git merge xc &&
+        git checkout -b xcb xc -- &&
+        git merge xb &&
+        git checkout master)
+'
+
+# no commits in bc descend from cb
+test_expect_success 'criss-cross: rev-list --ancestry-path cb..bc' '
+       (cd criss-cross &&
+        git rev-list --ancestry-path xcb..xbc > actual &&
+        test -z "$(cat actual)")
+'
+
+# no commits in repository descend from cb
+test_expect_success 'criss-cross: rev-list --ancestry-path --all ^cb' '
+       (cd criss-cross &&
+        git rev-list --ancestry-path --all ^xcb > actual &&
+        test -z "$(cat actual)")
+'
+
 test_done