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-rw-r--r--builtin-fsck.c111
1 files changed, 71 insertions, 40 deletions
diff --git a/builtin-fsck.c b/builtin-fsck.c
index d3f3de9446..0929c7f245 100644
--- a/builtin-fsck.c
+++ b/builtin-fsck.c
@@ -10,6 +10,7 @@
#include "tree-walk.h"
#include "fsck.h"
#include "parse-options.h"
+#include "dir.h"
#define REACHABLE 0x0001
#define SEEN 0x0002
@@ -18,10 +19,11 @@ static int show_root;
static int show_tags;
static int show_unreachable;
static int include_reflogs = 1;
-static int check_full;
+static int check_full = 1;
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;
@@ -45,6 +47,7 @@ static void objreport(struct object *obj, const char *severity,
fputs("\n", stderr);
}
+__attribute__((format (printf, 2, 3)))
static int objerror(struct object *obj, const char *err, ...)
{
va_list params;
@@ -55,6 +58,7 @@ static int objerror(struct object *obj, const char *err, ...)
return -1;
}
+__attribute__((format (printf, 3, 4)))
static int fsck_error_func(struct object *obj, int type, const char *err, ...)
{
va_list params;
@@ -64,11 +68,11 @@ static int fsck_error_func(struct object *obj, int type, const char *err, ...)
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",
@@ -96,6 +100,20 @@ static int mark_object(struct object *obj, int type, void *data)
return 1;
}
+ add_object_array(obj, (void *) parent, &pending);
+ return 0;
+}
+
+static void mark_object_reachable(struct object *obj)
+{
+ mark_object(obj, OBJ_ANY, NULL);
+}
+
+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;
@@ -107,15 +125,22 @@ static int mark_object(struct object *obj, int type, void *data)
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)
@@ -137,7 +162,7 @@ static void check_reachable_object(struct object *obj)
* 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;
@@ -194,19 +219,23 @@ static void check_unreachable_object(struct object *obj)
return;
}
if (!(f = fopen(filename, "w")))
- die("Could not open %s", filename);
+ die_errno("Could not open '%s'", filename);
if (obj->type == OBJ_BLOB) {
enum object_type type;
unsigned long size;
char *buf = read_sha1_file(obj->sha1,
&type, &size);
if (buf) {
- fwrite(buf, size, 1, f);
+ if (fwrite(buf, size, 1, f) != 1)
+ die_errno("Could not write '%s'",
+ filename);
free(buf);
}
} else
fprintf(f, "%s\n", sha1_to_hex(obj->sha1));
- fclose(f);
+ if (fclose(f))
+ die_errno("Could not finish '%s'",
+ filename);
}
return;
}
@@ -233,6 +262,9 @@ static void check_connectivity(void)
{
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)
@@ -262,7 +294,7 @@ static int fsck_sha1(const unsigned char *sha1)
fprintf(stderr, "Checking %s %s\n",
typename(obj->type), sha1_to_hex(obj->sha1));
- if (fsck_walk(obj, mark_used, 0))
+ if (fsck_walk(obj, mark_used, NULL))
objerror(obj, "broken links");
if (fsck_object(obj, check_strict, fsck_error_func))
return -1;
@@ -367,19 +399,12 @@ static void fsck_dir(int i, char *path)
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));
@@ -451,6 +476,8 @@ static int fsck_handle_ref(const char *refname, const unsigned char *sha1, int f
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);
@@ -490,14 +517,13 @@ static void fsck_object_dir(const char *path)
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"))
@@ -506,7 +532,7 @@ static int fsck_head_link(void)
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",
@@ -552,7 +578,7 @@ static struct option fsck_opts[] = {
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, "full", &check_full, "also consider packs and 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"),
@@ -562,10 +588,12 @@ static struct option fsck_opts[] = {
int cmd_fsck(int argc, const char **argv, const char *prefix)
{
int i, heads;
+ struct alternate_object_database *alt;
errors_found = 0;
+ read_replace_refs = 0;
- argc = parse_options(argc, argv, fsck_opts, fsck_usage, 0);
+ argc = parse_options(argc, argv, prefix, fsck_opts, fsck_usage, 0);
if (write_lost_and_found) {
check_full = 1;
include_reflogs = 0;
@@ -573,17 +601,19 @@ int cmd_fsck(int argc, const char **argv, const char *prefix)
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 */
@@ -600,10 +630,11 @@ int cmd_fsck(int argc, const char **argv, const char *prefix)
}
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)
generated by cgit v1.2.3 (git 2.25.1) at 2024-10-01 01:50:42 +0000