#include "tree-walk.h"
#include "fsck.h"
#include "parse-options.h"
+#include "dir.h"
#define REACHABLE 0x0001
#define SEEN 0x0002
static int check_strict;
static int keep_cache_objects;
static unsigned char head_sha1[20];
+static const char *head_points_at;
static int errors_found;
static int write_lost_and_found;
static int verbose;
return (type == FSCK_WARN) ? 0 : 1;
}
+static struct object_array pending;
+
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",
return 1;
}
+ add_object_array(obj, (void *) parent, &pending);
+ return 0;
+}
+
+static void mark_object_reachable(struct object *obj)
+{
+ mark_object(obj, OBJ_ANY, 0);
+}
+
+static int traverse_one_object(struct object *obj, struct object *parent)
+{
+ int result;
+ struct tree *tree = NULL;
+
if (obj->type == OBJ_TREE) {
obj->parsed = 0;
tree = (struct tree *)obj;
free(tree->buffer);
tree->buffer = NULL;
}
- if (result < 0)
- result = 1;
-
return result;
}
-static void mark_object_reachable(struct object *obj)
+static int traverse_reachable(void)
{
- mark_object(obj, OBJ_ANY, 0);
+ int result = 0;
+ while (pending.nr) {
+ struct object_array_entry *entry;
+ struct object *obj, *parent;
+
+ entry = pending.objects + --pending.nr;
+ obj = entry->item;
+ parent = (struct object *) entry->name;
+ result |= traverse_one_object(obj, parent);
+ }
+ return !!result;
}
static int mark_used(struct object *obj, int type, void *data)
* do a full fsck
*/
if (!obj->parsed) {
- if (has_sha1_pack(obj->sha1, NULL))
+ if (has_sha1_pack(obj->sha1))
return; /* it is in pack - forget about it */
printf("missing %s %s\n", typename(obj->type), sha1_to_hex(obj->sha1));
errors_found |= ERROR_REACHABLE;
char *buf = read_sha1_file(obj->sha1,
&type, &size);
if (buf) {
- fwrite(buf, size, 1, f);
+ if (fwrite(buf, size, 1, f) != 1)
+ die("Could not write %s: %s",
+ filename, strerror(errno));
free(buf);
}
} else
fprintf(f, "%s\n", sha1_to_hex(obj->sha1));
- fclose(f);
+ if (fclose(f))
+ die("Could not finish %s: %s",
+ filename, strerror(errno));
}
return;
}
{
int i, max;
+ /* Traverse the pending reachable objects */
+ traverse_reachable();
+
/* Look up all the requirements, warn about missing objects.. */
max = get_max_object_index();
if (verbose)
while ((de = readdir(dir)) != NULL) {
char name[100];
unsigned char sha1[20];
- int len = strlen(de->d_name);
- switch (len) {
- case 2:
- if (de->d_name[1] != '.')
- break;
- case 1:
- if (de->d_name[0] != '.')
- break;
+ if (is_dot_or_dotdot(de->d_name))
continue;
- case 38:
+ if (strlen(de->d_name) == 38) {
sprintf(name, "%02x", i);
- memcpy(name+2, de->d_name, len+1);
+ memcpy(name+2, de->d_name, 39);
if (get_sha1_hex(name, sha1) < 0)
break;
add_sha1_list(sha1, DIRENT_SORT_HINT(de));
static void get_default_heads(void)
{
+ if (head_points_at && !is_null_sha1(head_sha1))
+ fsck_handle_ref("HEAD", head_sha1, 0, NULL);
for_each_ref(fsck_handle_ref, NULL);
if (include_reflogs)
for_each_reflog(fsck_handle_reflog, NULL);
static int fsck_head_link(void)
{
- unsigned char sha1[20];
int flag;
int null_is_error = 0;
- const char *head_points_at = resolve_ref("HEAD", sha1, 0, &flag);
if (verbose)
fprintf(stderr, "Checking HEAD link\n");
+ head_points_at = resolve_ref("HEAD", head_sha1, 0, &flag);
if (!head_points_at)
return error("Invalid HEAD");
if (!strcmp(head_points_at, "HEAD"))
else if (prefixcmp(head_points_at, "refs/heads/"))
return error("HEAD points to something strange (%s)",
head_points_at);
- if (is_null_sha1(sha1)) {
+ if (is_null_sha1(head_sha1)) {
if (null_is_error)
return error("HEAD: detached HEAD points at nothing");
fprintf(stderr, "notice: HEAD points to an unborn branch (%s)\n",
int cmd_fsck(int argc, const char **argv, const char *prefix)
{
int i, heads;
+ struct alternate_object_database *alt;
errors_found = 0;
fsck_head_link();
fsck_object_dir(get_object_directory());
+
+ prepare_alt_odb();
+ for (alt = alt_odb_list; alt; alt = alt->next) {
+ char namebuf[PATH_MAX];
+ int namelen = alt->name - alt->base;
+ memcpy(namebuf, alt->base, namelen);
+ namebuf[namelen - 1] = 0;
+ fsck_object_dir(namebuf);
+ }
+
if (check_full) {
- struct alternate_object_database *alt;
struct packed_git *p;
- prepare_alt_odb();
- for (alt = alt_odb_list; alt; alt = alt->next) {
- char namebuf[PATH_MAX];
- int namelen = alt->name - alt->base;
- memcpy(namebuf, alt->base, namelen);
- namebuf[namelen - 1] = 0;
- fsck_object_dir(namebuf);
- }
+
prepare_packed_git();
for (p = packed_git; p; p = p->next)
/* verify gives error messages itself */
}
heads = 0;
- for (i = 1; i < argc; i++) {
+ for (i = 0; i < argc; i++) {
const char *arg = argv[i];
- if (!get_sha1(arg, head_sha1)) {
- struct object *obj = lookup_object(head_sha1);
+ unsigned char sha1[20];
+ if (!get_sha1(arg, sha1)) {
+ struct object *obj = lookup_object(sha1);
/* Error is printed by lookup_object(). */
if (!obj)