X-Git-Url: https://git.tokkee.org/?a=blobdiff_plain;f=builtin-prune.c;h=bb8ead92cf41c3cbdbc421a1490fb40ce19f11c3;hb=1f1300b4f16591feaa1387e967752af33d4fffda;hp=6228c7907b183fb686c9f4cc54347c3dc16f3ec4;hpb=551029af305e04bed638771a3932e376243dddcb;p=git.git

diff --git a/builtin-prune.c b/builtin-prune.c
index 6228c7907..bb8ead92c 100644
--- a/builtin-prune.c
+++ b/builtin-prune.c
@@ -1,27 +1,30 @@
 #include "cache.h"
-#include "refs.h"
-#include "tag.h"
 #include "commit.h"
-#include "tree.h"
-#include "blob.h"
-#include "tree-walk.h"
 #include "diff.h"
 #include "revision.h"
 #include "builtin.h"
-#include "cache-tree.h"
+#include "reachable.h"
 
 static const char prune_usage[] = "git-prune [-n]";
 static int show_only;
-static struct rev_info revs;
+static unsigned long expire;
 
 static int prune_object(char *path, const char *filename, const unsigned char *sha1)
 {
-	if (show_only) {
-		printf("would prune %s/%s\n", path, filename);
-		return 0;
+	const char *fullpath = mkpath("%s/%s", path, filename);
+	if (expire) {
+		struct stat st;
+		if (lstat(fullpath, &st))
+			return error("Could not stat '%s'", fullpath);
+		if (st.st_mtime > expire)
+			return 0;
 	}
-	unlink(mkpath("%s/%s", path, filename));
-	rmdir(path);
+	if (show_only) {
+		enum object_type type = sha1_object_info(sha1, NULL);
+		printf("%s %s\n", sha1_to_hex(sha1),
+		       (type > 0) ? typename(type) : "unknown");
+	} else
+		unlink(fullpath);
 	return 0;
 }
 
@@ -64,6 +67,8 @@ static int prune_dir(int i, char *path)
 		}
 		fprintf(stderr, "bad sha1 file: %s/%s\n", path, de->d_name);
 	}
+	if (!show_only)
+		rmdir(path);
 	closedir(dir);
 	return 0;
 }
@@ -78,148 +83,48 @@ static void prune_object_dir(const char *path)
 	}
 }
 
-static void process_blob(struct blob *blob,
-			 struct object_array *p,
-			 struct name_path *path,
-			 const char *name)
-{
-	struct object *obj = &blob->object;
-
-	if (obj->flags & SEEN)
-		return;
-	obj->flags |= SEEN;
-	/* Nothing to do, really .. The blob lookup was the important part */
-}
-
-static void process_tree(struct tree *tree,
-			 struct object_array *p,
-			 struct name_path *path,
-			 const char *name)
+/*
+ * Write errors (particularly out of space) can result in
+ * failed temporary packs (and more rarely indexes and other
+ * files begining with "tmp_") accumulating in the
+ * object directory.
+ */
+static void remove_temporary_files(void)
 {
-	struct object *obj = &tree->object;
-	struct tree_desc desc;
-	struct name_entry entry;
-	struct name_path me;
+	DIR *dir;
+	struct dirent *de;
+	char* dirname=get_object_directory();
 
-	if (obj->flags & SEEN)
+	dir = opendir(dirname);
+	if (!dir) {
+		fprintf(stderr, "Unable to open object directory %s\n",
+			dirname);
 		return;
-	obj->flags |= SEEN;
-	if (parse_tree(tree) < 0)
-		die("bad tree object %s", sha1_to_hex(obj->sha1));
-	name = xstrdup(name);
-	add_object(obj, p, path, name);
-	me.up = path;
-	me.elem = name;
-	me.elem_len = strlen(name);
-
-	desc.buf = tree->buffer;
-	desc.size = tree->size;
-
-	while (tree_entry(&desc, &entry)) {
-		if (S_ISDIR(entry.mode))
-			process_tree(lookup_tree(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;
-	struct name_path me;
-
-	if (obj->flags & SEEN)
-		return;
-	obj->flags |= SEEN;
-
-	me.up = NULL;
-	me.elem = "tag:/";
-	me.elem_len = 5;
-
-	if (parse_tag(tag) < 0)
-		die("bad tag object %s", sha1_to_hex(obj->sha1));
-	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 = { 0, 0, NULL };
-
-	/* 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;
+	while ((de = readdir(dir)) != NULL) {
+		if (!prefixcmp(de->d_name, "tmp_")) {
+			char name[PATH_MAX];
+			int c = snprintf(name, PATH_MAX, "%s/%s",
+					 dirname, de->d_name);
+			if (c < 0 || c >= PATH_MAX)
+				continue;
+			if (expire) {
+				struct stat st;
+				if (stat(name, &st) != 0 || st.st_mtime >= expire)
+					continue;
+			}
+			printf("Removing stale temporary file %s\n", name);
+			if (!show_only)
+				unlink(name);
 		}
-		die("unknown pending object %s (%s)", sha1_to_hex(obj->sha1), name);
 	}
-}
-
-static int add_one_ref(const char *path, const unsigned char *sha1)
-{
-	struct object *object = parse_object(sha1);
-	if (!object)
-		die("bad object ref: %s:%s", path, sha1_to_hex(sha1));
-	add_pending_object(&revs, object, "");
-	return 0;
-}
-
-static void add_one_tree(const unsigned char *sha1)
-{
-	struct tree *tree = lookup_tree(sha1);
-	add_pending_object(&revs, &tree->object, "");
-}
-
-static void add_cache_tree(struct cache_tree *it)
-{
-	int i;
-
-	if (it->entry_count >= 0)
-		add_one_tree(it->sha1);
-	for (i = 0; i < it->subtree_nr; i++)
-		add_cache_tree(it->down[i]->cache_tree);
-}
-
-static void add_cache_refs(void)
-{
-	int i;
-
-	read_cache();
-	for (i = 0; i < active_nr; i++) {
-		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);
+	closedir(dir);
 }
 
 int cmd_prune(int argc, const char **argv, const char *prefix)
 {
 	int i;
+	struct rev_info revs;
 
 	for (i = 1; i < argc; i++) {
 		const char *arg = argv[i];
@@ -227,33 +132,27 @@ int cmd_prune(int argc, const char **argv, const char *prefix)
 			show_only = 1;
 			continue;
 		}
+		if (!strcmp(arg, "--expire")) {
+			if (++i < argc) {
+				expire = approxidate(argv[i]);
+				continue;
+			}
+		}
+		else if (!prefixcmp(arg, "--expire=")) {
+			expire = approxidate(arg + 9);
+			continue;
+		}
 		usage(prune_usage);
 	}
 
-	/*
-	 * Set up revision parsing, and mark us as being interested
-	 * in all object types, not just commits.
-	 */
+	save_commit_buffer = 0;
 	init_revisions(&revs, prefix);
-	revs.tag_objects = 1;
-	revs.blob_objects = 1;
-	revs.tree_objects = 1;
-
-	/* Add all external refs */
-	for_each_ref(add_one_ref);
-
-	/* Add all refs from the index file */
-	add_cache_refs();
-
-	/*
-	 * Set up the revision walk - this will move all commits
-	 * from the pending list to the commit walking list.
-	 */
-	prepare_revision_walk(&revs);
-
-	walk_commit_list(&revs);
+	mark_reachable_objects(&revs, 1);
 
 	prune_object_dir(get_object_directory());
 
+	sync();
+	prune_packed_objects(show_only);
+	remove_temporary_files();
 	return 0;
 }