#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"
+#include "parse-options.h"
-static const char prune_usage[] = "git-prune [-n]";
+static const char * const prune_usage[] = {
+ "git-prune [-n] [--expire <time>] [--] [<head>...]",
+ NULL
+};
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)
{
- char buf[20];
- const char *type;
-
- if (show_only) {
- if (sha1_object_info(sha1, buf, NULL))
- type = "unknown";
- else
- type = buf;
- printf("%s %s\n", sha1_to_hex(sha1), type);
- 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;
}
}
fprintf(stderr, "bad sha1 file: %s/%s\n", path, de->d_name);
}
+ if (!show_only)
+ rmdir(path);
closedir(dir);
return 0;
}
}
}
-static void process_blob(struct blob *blob,
- 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 = &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)
-{
- 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, int flag, void *cb_data)
-{
- 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;
-
- for (i = 1; i < argc; i++) {
- const char *arg = argv[i];
- if (!strcmp(arg, "-n")) {
- show_only = 1;
- continue;
- }
- usage(prune_usage);
- }
-
- /*
- * Set up revision parsing, and mark us as being interested
- * in all object types, not just commits.
- */
+ struct rev_info revs;
+ const struct option options[] = {
+ OPT_BOOLEAN('n', NULL, &show_only,
+ "do not remove, show only"),
+ OPT_DATE(0, "expire", &expire,
+ "expire objects older than <time>"),
+ OPT_END()
+ };
+
+ 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, NULL);
-
- /* 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);
+ argc = parse_options(argc, argv, options, prune_usage, 0);
+ while (argc--) {
+ unsigned char sha1[20];
+ const char *name = *argv++;
+ if (!get_sha1(name, sha1)) {
+ struct object *object = parse_object(sha1);
+ if (!object)
+ die("bad object: %s", name);
+ add_pending_object(&revs, object, "");
+ }
+ else
+ die("unrecognized argument: %s", name);
+ }
+ mark_reachable_objects(&revs, 1);
prune_object_dir(get_object_directory());
sync();
prune_packed_objects(show_only);
+ remove_temporary_files();
return 0;
}