Revision 2c162b56f370f5c33e6a945e6922d598006c5ec4 authored by Jonathan Nieder on 09 June 2011, 07:08:57 UTC, committed by Junio C Hamano on 09 June 2011, 16:22:44 UTC
v1.7.6-rc0~27^2~4 (gitweb: Change the way "content tags" ('ctags') are handled, 2011-04-29) tried to make gitweb's tag cloud feature more intuitive for webmasters by checking whether the ctags/<label> under a project's .git dir contains a number (representing the strength of association to <label>) before treating it as one. With that change, after putting '$feature{'ctags'}{'default'} = [1];' in your $GITWEB_CONFIG, you could do echo Linux >.git/ctags/linux and gitweb would treat that as a request to tag the current repository with the Linux tag, instead of the previous behavior of writing an error page embedded in the projects list that triggers error messages from Chromium and Firefox about malformed XML. Unfortunately the pattern (\d+) used to match numbers is too loose, and the "XML declaration allowed only at the start of the document" error can still be experienced if you write "Linux-2.6" in place of "Linux" in the example above. Fix it by tightening the pattern to ^\d+$. Signed-off-by: Jonathan Nieder <jrnieder@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
1 parent 2cbd969
reachable.c
#include "cache.h"
#include "refs.h"
#include "tag.h"
#include "commit.h"
#include "blob.h"
#include "diff.h"
#include "revision.h"
#include "reachable.h"
#include "cache-tree.h"
static void process_blob(struct blob *blob,
struct object_array *p,
struct name_path *path,
const char *name)
{
struct object *obj = &blob->object;
if (!blob)
die("bad blob object");
if (obj->flags & SEEN)
return;
obj->flags |= SEEN;
/* Nothing to do, really .. The blob lookup was the important part */
}
static void process_gitlink(const unsigned char *sha1,
struct object_array *p,
struct name_path *path,
const char *name)
{
/* I don't think we want to recurse into this, really. */
}
static void process_tree(struct tree *tree,
struct object_array *p,
struct name_path *path,
const char *name)
{
struct object *obj = &tree->object;
struct tree_desc desc;
struct name_entry entry;
struct name_path me;
if (!tree)
die("bad tree object");
if (obj->flags & SEEN)
return;
obj->flags |= SEEN;
if (parse_tree(tree) < 0)
die("bad tree object %s", sha1_to_hex(obj->sha1));
add_object(obj, p, path, name);
me.up = path;
me.elem = name;
me.elem_len = strlen(name);
init_tree_desc(&desc, tree->buffer, tree->size);
while (tree_entry(&desc, &entry)) {
if (S_ISDIR(entry.mode))
process_tree(lookup_tree(entry.sha1), p, &me, entry.path);
else if (S_ISGITLINK(entry.mode))
process_gitlink(entry.sha1, p, &me, entry.path);
else
process_blob(lookup_blob(entry.sha1), p, &me, entry.path);
}
free(tree->buffer);
tree->buffer = NULL;
}
static void process_tag(struct tag *tag, struct object_array *p, const char *name)
{
struct object *obj = &tag->object;
if (obj->flags & SEEN)
return;
obj->flags |= SEEN;
if (parse_tag(tag) < 0)
die("bad tag object %s", sha1_to_hex(obj->sha1));
if (tag->tagged)
add_object(tag->tagged, p, NULL, name);
}
static void walk_commit_list(struct rev_info *revs)
{
int i;
struct commit *commit;
struct object_array objects = OBJECT_ARRAY_INIT;
/* Walk all commits, process their trees */
while ((commit = get_revision(revs)) != NULL)
process_tree(commit->tree, &objects, NULL, "");
/* Then walk all the pending objects, recursively processing them too */
for (i = 0; i < revs->pending.nr; i++) {
struct object_array_entry *pending = revs->pending.objects + i;
struct object *obj = pending->item;
const char *name = pending->name;
if (obj->type == OBJ_TAG) {
process_tag((struct tag *) obj, &objects, name);
continue;
}
if (obj->type == OBJ_TREE) {
process_tree((struct tree *)obj, &objects, NULL, name);
continue;
}
if (obj->type == OBJ_BLOB) {
process_blob((struct blob *)obj, &objects, NULL, name);
continue;
}
die("unknown pending object %s (%s)", sha1_to_hex(obj->sha1), name);
}
}
static int add_one_reflog_ent(unsigned char *osha1, unsigned char *nsha1,
const char *email, unsigned long timestamp, int tz,
const char *message, void *cb_data)
{
struct object *object;
struct rev_info *revs = (struct rev_info *)cb_data;
object = parse_object(osha1);
if (object)
add_pending_object(revs, object, "");
object = parse_object(nsha1);
if (object)
add_pending_object(revs, object, "");
return 0;
}
static int add_one_ref(const char *path, const unsigned char *sha1, int flag, void *cb_data)
{
struct object *object = parse_object(sha1);
struct rev_info *revs = (struct rev_info *)cb_data;
if (!object)
die("bad object ref: %s:%s", path, sha1_to_hex(sha1));
add_pending_object(revs, object, "");
return 0;
}
static int add_one_reflog(const char *path, const unsigned char *sha1, int flag, void *cb_data)
{
for_each_reflog_ent(path, add_one_reflog_ent, cb_data);
return 0;
}
static void add_one_tree(const unsigned char *sha1, struct rev_info *revs)
{
struct tree *tree = lookup_tree(sha1);
if (tree)
add_pending_object(revs, &tree->object, "");
}
static void add_cache_tree(struct cache_tree *it, struct rev_info *revs)
{
int i;
if (it->entry_count >= 0)
add_one_tree(it->sha1, revs);
for (i = 0; i < it->subtree_nr; i++)
add_cache_tree(it->down[i]->cache_tree, revs);
}
static void add_cache_refs(struct rev_info *revs)
{
int i;
read_cache();
for (i = 0; i < active_nr; i++) {
/*
* The index can contain blobs and GITLINKs, GITLINKs are hashes
* that don't actually point to objects in the repository, it's
* almost guaranteed that they are NOT blobs, so we don't call
* lookup_blob() on them, to avoid populating the hash table
* with invalid information
*/
if (S_ISGITLINK(active_cache[i]->ce_mode))
continue;
lookup_blob(active_cache[i]->sha1);
/*
* We could add the blobs to the pending list, but quite
* frankly, we don't care. Once we've looked them up, and
* added them as objects, we've really done everything
* there is to do for a blob
*/
}
if (active_cache_tree)
add_cache_tree(active_cache_tree, revs);
}
void mark_reachable_objects(struct rev_info *revs, int mark_reflog)
{
/*
* Set up revision parsing, and mark us as being interested
* in all object types, not just commits.
*/
revs->tag_objects = 1;
revs->blob_objects = 1;
revs->tree_objects = 1;
/* Add all refs from the index file */
add_cache_refs(revs);
/* Add all external refs */
for_each_ref(add_one_ref, revs);
/* Add all reflog info */
if (mark_reflog)
for_each_reflog(add_one_reflog, revs);
/*
* Set up the revision walk - this will move all commits
* from the pending list to the commit walking list.
*/
if (prepare_revision_walk(revs))
die("revision walk setup failed");
walk_commit_list(revs);
}
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