#include "pack.h"
#include "cache-tree.h"
#include "tree-walk.h"
+#include "fsck.h"
+#include "parse-options.h"
#define REACHABLE 0x0001
#define SEEN 0x0002
return -1;
}
+static int mark_object(struct object *obj, int type, void *data)
+{
+ struct tree *tree = NULL;
+ struct object *parent = data;
+ int result;
+
+ if (!obj) {
+ printf("broken link from %7s %s\n",
+ typename(parent->type), sha1_to_hex(parent->sha1));
+ printf("broken link from %7s %s\n",
+ (type == OBJ_ANY ? "unknown" : typename(type)), "unknown");
+ errors_found |= ERROR_REACHABLE;
+ return 1;
+ }
+
+ if (type != OBJ_ANY && obj->type != type)
+ objerror(parent, "wrong object type in link");
+
+ if (obj->flags & REACHABLE)
+ return 0;
+ obj->flags |= REACHABLE;
+ if (!obj->parsed) {
+ if (parent && !has_sha1_file(obj->sha1)) {
+ printf("broken link from %7s %s\n",
+ typename(parent->type), sha1_to_hex(parent->sha1));
+ printf(" to %7s %s\n",
+ typename(obj->type), sha1_to_hex(obj->sha1));
+ errors_found |= ERROR_REACHABLE;
+ }
+ return 1;
+ }
+
+ if (obj->type == OBJ_TREE) {
+ obj->parsed = 0;
+ tree = (struct tree *)obj;
+ if (parse_tree(tree) < 0)
+ return 1; /* error already displayed */
+ }
+ result = fsck_walk(obj, mark_object, obj);
+ if (tree) {
+ free(tree->buffer);
+ tree->buffer = NULL;
+ }
+ if (result < 0)
+ result = 1;
+
+ return result;
+}
+
+static void mark_object_reachable(struct object *obj)
+{
+ mark_object(obj, OBJ_ANY, 0);
+}
+
+static int mark_used(struct object *obj, int type, void *data)
+{
+ if (!obj)
+ return 1;
+ obj->used = 1;
+ return 0;
+}
+
/*
* Check a single reachable object
*/
static void check_reachable_object(struct object *obj)
{
- const struct object_refs *refs;
-
/*
* We obviously want the object to be parsed,
* except if it was in a pack-file and we didn't
errors_found |= ERROR_REACHABLE;
return;
}
-
- /*
- * Check that everything that we try to reference is also good.
- */
- refs = lookup_object_refs(obj);
- if (refs) {
- unsigned j;
- for (j = 0; j < refs->count; j++) {
- struct object *ref = refs->ref[j];
- if (ref->parsed ||
- (has_sha1_file(ref->sha1)))
- continue;
- printf("broken link from %7s %s\n",
- typename(obj->type), sha1_to_hex(obj->sha1));
- printf(" to %7s %s\n",
- typename(ref->type), sha1_to_hex(ref->sha1));
- errors_found |= ERROR_REACHABLE;
- }
- }
}
/*
if (obj->flags & SEEN)
return 0;
obj->flags |= SEEN;
+ if (fsck_walk(obj, mark_used, 0))
+ objerror(obj, "broken links");
if (obj->type == OBJ_BLOB)
return 0;
if (obj->type == OBJ_TREE)
obj = lookup_object(osha1);
if (obj) {
obj->used = 1;
- mark_reachable(obj, REACHABLE);
+ mark_object_reachable(obj);
}
}
obj = lookup_object(nsha1);
if (obj) {
obj->used = 1;
- mark_reachable(obj, REACHABLE);
+ mark_object_reachable(obj);
}
return 0;
}
return 0;
}
+static int is_branch(const char *refname)
+{
+ return !strcmp(refname, "HEAD") || !prefixcmp(refname, "refs/heads/");
+}
+
static int fsck_handle_ref(const char *refname, const unsigned char *sha1, int flag, void *cb_data)
{
struct object *obj;
- obj = lookup_object(sha1);
+ obj = parse_object(sha1);
if (!obj) {
- if (has_sha1_file(sha1)) {
- default_refs++;
- return 0; /* it is in a pack */
- }
error("%s: invalid sha1 pointer %s", refname, sha1_to_hex(sha1));
/* We'll continue with the rest despite the error.. */
return 0;
}
+ if (obj->type != OBJ_COMMIT && is_branch(refname))
+ error("%s: not a commit", refname);
default_refs++;
obj->used = 1;
- mark_reachable(obj, REACHABLE);
+ mark_object_reachable(obj);
return 0;
}
sha1_to_hex(it->sha1));
return 1;
}
- mark_reachable(obj, REACHABLE);
+ mark_object_reachable(obj);
obj->used = 1;
if (obj->type != OBJ_TREE)
err |= objerror(obj, "non-tree in cache-tree");
return err;
}
-static const char fsck_usage[] =
-"git-fsck [--tags] [--root] [[--unreachable] [--cache] [--full] "
-"[--strict] [--verbose] <head-sha1>*]";
+static char const * const fsck_usage[] = {
+ "git-fsck [options] [<object>...]",
+ NULL
+};
+
+static struct option fsck_opts[] = {
+ OPT__VERBOSE(&verbose),
+ OPT_BOOLEAN(0, "unreachable", &show_unreachable, "show unreachable objects"),
+ OPT_BOOLEAN(0, "tags", &show_tags, "report tags"),
+ OPT_BOOLEAN(0, "root", &show_root, "report root nodes"),
+ OPT_BOOLEAN(0, "cache", &keep_cache_objects, "make index objects head nodes"),
+ OPT_BOOLEAN(0, "reflogs", &include_reflogs, "make reflogs head nodes (default)"),
+ OPT_BOOLEAN(0, "full", &check_full, "also consider alternate objects"),
+ OPT_BOOLEAN(0, "strict", &check_strict, "enable more strict checking"),
+ OPT_BOOLEAN(0, "lost-found", &write_lost_and_found,
+ "write dangling objects in .git/lost-found"),
+ OPT_END(),
+};
int cmd_fsck(int argc, const char **argv, const char *prefix)
{
int i, heads;
- track_object_refs = 1;
errors_found = 0;
- for (i = 1; i < argc; i++) {
- const char *arg = argv[i];
-
- if (!strcmp(arg, "--unreachable")) {
- show_unreachable = 1;
- continue;
- }
- if (!strcmp(arg, "--tags")) {
- show_tags = 1;
- continue;
- }
- if (!strcmp(arg, "--root")) {
- show_root = 1;
- continue;
- }
- if (!strcmp(arg, "--cache")) {
- keep_cache_objects = 1;
- continue;
- }
- if (!strcmp(arg, "--no-reflogs")) {
- include_reflogs = 0;
- continue;
- }
- if (!strcmp(arg, "--full")) {
- check_full = 1;
- continue;
- }
- if (!strcmp(arg, "--strict")) {
- check_strict = 1;
- continue;
- }
- if (!strcmp(arg, "--verbose")) {
- verbose = 1;
- continue;
- }
- if (!strcmp(arg, "--lost-found")) {
- check_full = 1;
- include_reflogs = 0;
- write_lost_and_found = 1;
- continue;
- }
- if (*arg == '-')
- usage(fsck_usage);
+ argc = parse_options(argc, argv, fsck_opts, fsck_usage, 0);
+ if (write_lost_and_found) {
+ check_full = 1;
+ include_reflogs = 0;
}
fsck_head_link();
verify_pack(p, 0);
for (p = packed_git; p; p = p->next) {
- uint32_t i, num;
+ uint32_t j, num;
if (open_pack_index(p))
continue;
num = p->num_objects;
- for (i = 0; i < num; i++)
- fsck_sha1(nth_packed_object_sha1(p, i));
+ for (j = 0; j < num; j++)
+ fsck_sha1(nth_packed_object_sha1(p, j));
}
}
heads = 0;
for (i = 1; i < argc; i++) {
const char *arg = argv[i];
-
- if (*arg == '-')
- continue;
-
if (!get_sha1(arg, head_sha1)) {
struct object *obj = lookup_object(head_sha1);
continue;
obj->used = 1;
- mark_reachable(obj, REACHABLE);
+ mark_object_reachable(obj);
heads++;
continue;
}
}
if (keep_cache_objects) {
- int i;
read_cache();
for (i = 0; i < active_nr; i++) {
unsigned int mode;
continue;
obj = &blob->object;
obj->used = 1;
- mark_reachable(obj, REACHABLE);
+ mark_object_reachable(obj);
}
if (active_cache_tree)
fsck_cache_tree(active_cache_tree);