#include "tree.h"
#include "blob.h"
#include "tag.h"
+#include "refs.h"
+#include "pack.h"
#define REACHABLE 0x0001
static int show_root = 0;
static int show_tags = 0;
static int show_unreachable = 0;
+static int standalone = 0;
+static int check_full = 0;
static int keep_cache_objects = 0;
static unsigned char head_sha1[20];
struct object_list *refs;
if (!obj->parsed) {
- printf("missing %s %s\n", obj->type, sha1_to_hex(obj->sha1));
+ if (!standalone && has_sha1_file(obj->sha1))
+ ; /* it is in pack */
+ else
+ printf("missing %s %s\n",
+ obj->type, sha1_to_hex(obj->sha1));
continue;
}
for (refs = obj->refs; refs; refs = refs->next) {
- if (refs->item->parsed)
+ if (refs->item->parsed ||
+ (!standalone && has_sha1_file(refs->item->sha1)))
continue;
printf("broken link from %7s %s\n",
obj->type, sha1_to_hex(obj->sha1));
refs->item->type, sha1_to_hex(refs->item->sha1));
}
- /* Don't bother with tag reachability. */
- if (obj->type == tag_type)
- continue;
-
if (show_unreachable && !(obj->flags & REACHABLE)) {
- printf("unreachable %s %s\n", obj->type, sha1_to_hex(obj->sha1));
+ printf("unreachable %s %s\n",
+ obj->type, sha1_to_hex(obj->sha1));
continue;
}
}
if (has_full_path) {
- fprintf(stderr, "warning: fsck-cache: tree %s "
+ fprintf(stderr, "warning: git-fsck-cache: tree %s "
"has full pathnames in it\n",
sha1_to_hex(item->object.sha1));
}
static int fsck_commit(struct commit *commit)
{
+ free(commit->buffer);
+ commit->buffer = NULL;
if (!commit->tree)
return -1;
if (!commit->parents && show_root)
return 0;
}
-static void read_sha1_reference(const char *path)
+static int default_refs = 0;
+
+static int fsck_handle_ref(const char *refname, const unsigned char *sha1)
{
- char hexname[60];
- unsigned char sha1[20];
- int fd = open(path, O_RDONLY), len;
struct object *obj;
- if (fd < 0)
- return;
-
- len = read(fd, hexname, sizeof(hexname));
- close(fd);
- if (len < 40)
- return;
-
- if (get_sha1_hex(hexname, sha1) < 0)
- return;
-
obj = lookup_object(sha1);
+ if (!obj) {
+ if (!standalone && 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;
+ }
+ default_refs++;
obj->used = 1;
mark_reachable(obj, REACHABLE);
+ return 0;
}
-static void find_file_objects(const char *base, const char *name)
+static void get_default_heads(void)
{
- int baselen = strlen(base);
- int namelen = strlen(name);
- char *path = xmalloc(baselen + namelen + 2);
- struct stat st;
-
- memcpy(path, base, baselen);
- path[baselen] = '/';
- memcpy(path + baselen + 1, name, namelen+1);
- if (stat(path, &st) < 0)
- return;
+ for_each_ref(fsck_handle_ref);
+ if (!default_refs)
+ die("No default references");
+}
- /*
- * Recurse into directories
- */
- if (S_ISDIR(st.st_mode)) {
- DIR *dir = opendir(path);
- if (dir) {
- struct dirent *de;
- while ((de = readdir(dir)) != NULL) {
- if (de->d_name[0] == '.')
- continue;
- find_file_objects(path, de->d_name);
- }
- closedir(dir);
- }
- return;
- }
- if (S_ISREG(st.st_mode)) {
- read_sha1_reference(path);
- return;
+static void fsck_object_dir(const char *path)
+{
+ int i;
+ for (i = 0; i < 256; i++) {
+ static char dir[4096];
+ sprintf(dir, "%s/%02x", path, i);
+ fsck_dir(i, dir);
}
+ fsck_sha1_list();
}
-static void get_default_heads(void)
+static int fsck_head_link(void)
{
- char *git_dir = gitenv(GIT_DIR_ENVIRONMENT) ? : DEFAULT_GIT_DIR_ENVIRONMENT;
- find_file_objects(git_dir, "refs");
+ int fd, count;
+ char hex[40];
+ unsigned char sha1[20];
+ static char path[PATH_MAX], link[PATH_MAX];
+ const char *git_dir = gitenv(GIT_DIR_ENVIRONMENT) ? : DEFAULT_GIT_DIR_ENVIRONMENT;
+
+ snprintf(path, sizeof(path), "%s/HEAD", git_dir);
+ if (readlink(path, link, sizeof(link)) < 0)
+ return error("HEAD is not a symlink");
+ if (strncmp("refs/heads/", link, 11))
+ return error("HEAD points to something strange (%s)", link);
+ fd = open(path, O_RDONLY);
+ if (fd < 0)
+ return error("HEAD: %s", strerror(errno));
+ count = read(fd, hex, sizeof(hex));
+ close(fd);
+ if (count < 0)
+ return error("HEAD: %s", strerror(errno));
+ if (count < 40 || get_sha1_hex(hex, sha1))
+ return error("HEAD: not a valid git pointer");
+ return 0;
}
int main(int argc, char **argv)
{
int i, heads;
- char *sha1_dir;
for (i = 1; i < argc; i++) {
const char *arg = argv[i];
keep_cache_objects = 1;
continue;
}
+ if (!strcmp(arg, "--standalone")) {
+ standalone = 1;
+ continue;
+ }
+ if (!strcmp(arg, "--full")) {
+ check_full = 1;
+ continue;
+ }
if (*arg == '-')
- usage("fsck-cache [--tags] [[--unreachable] [--cache] <head-sha1>*]");
+ usage("git-fsck-cache [--tags] [[--unreachable] [--cache] [--standalone | --full] <head-sha1>*]");
}
- sha1_dir = get_object_directory();
- for (i = 0; i < 256; i++) {
- static char dir[4096];
- sprintf(dir, "%s/%02x", sha1_dir, i);
- fsck_dir(i, dir);
+ if (standalone && check_full)
+ die("Only one of --standalone or --full can be used.");
+ if (standalone)
+ unsetenv("GIT_ALTERNATE_OBJECT_DIRECTORIES");
+
+ fsck_head_link();
+ fsck_object_dir(get_object_directory());
+ if (check_full) {
+ int j;
+ struct packed_git *p;
+ prepare_alt_odb();
+ for (j = 0; alt_odb[j].base; j++) {
+ char namebuf[PATH_MAX];
+ int namelen = alt_odb[j].name - alt_odb[j].base;
+ memcpy(namebuf, alt_odb[j].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 */
+ verify_pack(p, 0);
+
+ for (p = packed_git; p; p = p->next) {
+ int num = num_packed_objects(p);
+ for (i = 0; i < num; i++) {
+ unsigned char sha1[20];
+ nth_packed_object_sha1(p, i, sha1);
+ if (fsck_sha1(sha1) < 0)
+ fprintf(stderr, "bad sha1 entry '%s'\n", sha1_to_hex(sha1));
+
+ }
+ }
}
- fsck_sha1_list();
heads = 0;
for (i = 1; i < argc; i++) {
}
/*
- * If we've been asked to do reachability without any explicit
- * head information, do the default ones from .git/refs. We also
- * consider the index file in this case (ie this implies --cache).
+ * If we've not been given any explicit head information, do the
+ * default ones from .git/refs. We also consider the index file
+ * in this case (ie this implies --cache).
*/
- if (show_unreachable && !heads) {
+ if (!heads) {
get_default_heads();
keep_cache_objects = 1;
}