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authorLinus Torvalds <torvalds@ppc970.osdl.org>2005-06-29 11:30:24 -0700
committerLinus Torvalds <torvalds@ppc970.osdl.org>2005-06-29 11:30:24 -0700
commit36f8d17445087a59d81963520ded982e03dfb6cb (patch)
treef0006b5d40c4d4efa0847fed2c7d084ca19883d8 /rev-list.c
parent3c90f03d3206cb2c2bff6e20f7477bbfcd624887 (diff)
downloadgit-36f8d17445087a59d81963520ded982e03dfb6cb.tar.gz
git-36f8d17445087a59d81963520ded982e03dfb6cb.tar.xz
Teach git-rev-list about non-commit objects
Now you can give git-rev-list tags, trees and blobs, and it will do the proper reachability for them all. Knock wood. Of course, you need the "--objects" flag to do anything but plain commits.
Diffstat (limited to 'rev-list.c')
-rw-r--r--rev-list.c104
1 files changed, 91 insertions, 13 deletions
diff --git a/rev-list.c b/rev-list.c
index ca8cc92fc..362342eab 100644
--- a/rev-list.c
+++ b/rev-list.c
@@ -1,4 +1,5 @@
#include "cache.h"
+#include "tag.h"
#include "commit.h"
#include "tree.h"
#include "blob.h"
@@ -103,7 +104,7 @@ static struct object_list **add_object(struct object *obj, struct object_list **
{
struct object_list *entry = xmalloc(sizeof(*entry));
entry->item = obj;
- entry->next = NULL;
+ entry->next = *p;
entry->name = name;
*p = entry;
return &entry->next;
@@ -143,9 +144,11 @@ static struct object_list **process_tree(struct tree *tree, struct object_list *
return p;
}
+static struct object_list *pending_objects = NULL;
+
static void show_commit_list(struct commit_list *list)
{
- struct object_list *objects = NULL, **p = &objects;
+ struct object_list *objects = NULL, **p = &objects, *pending;
while (list) {
struct commit *commit = pop_most_recent_commit(&list, SEEN);
@@ -153,6 +156,26 @@ static void show_commit_list(struct commit_list *list)
if (process_commit(commit) == STOP)
break;
}
+ for (pending = pending_objects; pending; pending = pending->next) {
+ struct object *obj = pending->item;
+ const char *name = pending->name;
+ if (obj->flags & (UNINTERESTING | SEEN))
+ continue;
+ if (obj->type == tag_type) {
+ obj->flags |= SEEN;
+ p = add_object(obj, p, name);
+ continue;
+ }
+ if (obj->type == tree_type) {
+ p = process_tree((struct tree *)obj, p, name);
+ continue;
+ }
+ if (obj->type == blob_type) {
+ p = process_blob((struct blob *)obj, p, name);
+ continue;
+ }
+ die("unknown pending object %s (%s)", sha1_to_hex(obj->sha1), name);
+ }
while (objects) {
printf("%s %s\n", sha1_to_hex(objects->item->sha1), objects->name);
objects = objects->next;
@@ -291,7 +314,7 @@ struct commit_list *limit_list(struct commit_list *list)
{
struct commit_list *newlist = NULL;
struct commit_list **p = &newlist;
- do {
+ while (list) {
struct commit *commit = pop_most_recent_commit(&list, SEEN);
struct object *obj = &commit->object;
@@ -302,24 +325,82 @@ struct commit_list *limit_list(struct commit_list *list)
continue;
}
p = &commit_list_insert(commit, p)->next;
- } while (list);
+ }
if (bisect_list)
newlist = find_bisection(newlist);
return newlist;
}
+static void add_pending_object(struct object *obj, const char *name)
+{
+ add_object(obj, &pending_objects, name);
+}
+
static struct commit *get_commit_reference(const char *name, unsigned int flags)
{
unsigned char sha1[20];
- struct commit *commit;
+ struct object *object;
if (get_sha1(name, sha1))
usage(rev_list_usage);
- commit = lookup_commit_reference(sha1);
- if (!commit || parse_commit(commit) < 0)
- die("bad commit object %s", name);
- commit->object.flags |= flags;
- return commit;
+ object = parse_object(sha1);
+ if (!object)
+ die("bad object %s", name);
+
+ /*
+ * Tag object? Look what it points to..
+ */
+ if (object->type == tag_type) {
+ struct tag *tag = (struct tag *) object;
+ object->flags |= flags;
+ if (tag_objects && !(object->flags & UNINTERESTING))
+ add_pending_object(object, tag->tag);
+ object = tag->tagged;
+ }
+
+ /*
+ * Commit object? Just return it, we'll do all the complex
+ * reachability crud.
+ */
+ if (object->type == commit_type) {
+ struct commit *commit = (struct commit *)object;
+ object->flags |= flags;
+ if (parse_commit(commit) < 0)
+ die("unable to parse commit %s", name);
+ return commit;
+ }
+
+ /*
+ * Tree object? Either mark it uniniteresting, or add it
+ * to the list of objects to look at later..
+ */
+ if (object->type == tree_type) {
+ struct tree *tree = (struct tree *)object;
+ if (!tree_objects)
+ die("%s is a tree object, not a commit", name);
+ if (flags & UNINTERESTING) {
+ mark_tree_uninteresting(tree);
+ return NULL;
+ }
+ add_pending_object(object, "");
+ return NULL;
+ }
+
+ /*
+ * Blob object? You know the drill by now..
+ */
+ if (object->type == blob_type) {
+ struct blob *blob = (struct blob *)object;
+ if (!blob_objects)
+ die("%s is a blob object, not a commit", name);
+ if (flags & UNINTERESTING) {
+ mark_blob_uninteresting(blob);
+ return NULL;
+ }
+ add_pending_object(object, "");
+ return NULL;
+ }
+ die("%s is unknown object", name);
}
int main(int argc, char **argv)
@@ -392,9 +473,6 @@ int main(int argc, char **argv)
commit_list_insert(commit, &list);
}
- if (!list)
- usage(rev_list_usage);
-
if (!merge_order) {
if (limited)
list = limit_list(list);