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Diffstat (limited to 'builtin/fsck.c')
-rw-r--r--builtin/fsck.c194
1 files changed, 120 insertions, 74 deletions
diff --git a/builtin/fsck.c b/builtin/fsck.c
index bb4227b..8d13794 100644
--- a/builtin/fsck.c
+++ b/builtin/fsck.c
@@ -50,40 +50,20 @@ static int name_objects;
#define ERROR_REFS 010
#define ERROR_COMMIT_GRAPH 020
-static const char *describe_object(struct object *obj)
+static const char *describe_object(const struct object_id *oid)
{
- static struct strbuf bufs[] = {
- STRBUF_INIT, STRBUF_INIT, STRBUF_INIT, STRBUF_INIT
- };
- static int b = 0;
- struct strbuf *buf;
- char *name = NULL;
-
- if (name_objects)
- name = lookup_decoration(fsck_walk_options.object_names, obj);
-
- buf = bufs + b;
- b = (b + 1) % ARRAY_SIZE(bufs);
- strbuf_reset(buf);
- strbuf_addstr(buf, oid_to_hex(&obj->oid));
- if (name)
- strbuf_addf(buf, " (%s)", name);
-
- return buf->buf;
+ return fsck_describe_object(&fsck_walk_options, oid);
}
-static const char *printable_type(struct object *obj)
+static const char *printable_type(const struct object_id *oid,
+ enum object_type type)
{
const char *ret;
- if (obj->type == OBJ_NONE) {
- enum object_type type = oid_object_info(the_repository,
- &obj->oid, NULL);
- if (type > 0)
- object_as_type(the_repository, obj, type, 0);
- }
+ if (type == OBJ_NONE)
+ type = oid_object_info(the_repository, oid, NULL);
- ret = type_name(obj->type);
+ ret = type_name(type);
if (!ret)
ret = _("unknown");
@@ -118,26 +98,32 @@ static int objerror(struct object *obj, const char *err)
errors_found |= ERROR_OBJECT;
/* TRANSLATORS: e.g. error in tree 01bfda: <more explanation> */
fprintf_ln(stderr, _("error in %s %s: %s"),
- printable_type(obj), describe_object(obj), err);
+ printable_type(&obj->oid, obj->type),
+ describe_object(&obj->oid), err);
return -1;
}
static int fsck_error_func(struct fsck_options *o,
- struct object *obj, int type, const char *message)
+ const struct object_id *oid,
+ enum object_type object_type,
+ int msg_type, const char *message)
{
- switch (type) {
+ switch (msg_type) {
case FSCK_WARN:
/* TRANSLATORS: e.g. warning in tree 01bfda: <more explanation> */
fprintf_ln(stderr, _("warning in %s %s: %s"),
- printable_type(obj), describe_object(obj), message);
+ printable_type(oid, object_type),
+ describe_object(oid), message);
return 0;
case FSCK_ERROR:
/* TRANSLATORS: e.g. error in tree 01bfda: <more explanation> */
fprintf_ln(stderr, _("error in %s %s: %s"),
- printable_type(obj), describe_object(obj), message);
+ printable_type(oid, object_type),
+ describe_object(oid), message);
return 1;
default:
- BUG("%d (FSCK_IGNORE?) should never trigger this callback", type);
+ BUG("%d (FSCK_IGNORE?) should never trigger this callback",
+ msg_type);
}
}
@@ -155,7 +141,8 @@ static int mark_object(struct object *obj, int type, void *data, struct fsck_opt
if (!obj) {
/* ... these references to parent->fld are safe here */
printf_ln(_("broken link from %7s %s"),
- printable_type(parent), describe_object(parent));
+ printable_type(&parent->oid, parent->type),
+ describe_object(&parent->oid));
printf_ln(_("broken link from %7s %s"),
(type == OBJ_ANY ? _("unknown") : type_name(type)),
_("unknown"));
@@ -183,10 +170,10 @@ static int mark_object(struct object *obj, int type, void *data, struct fsck_opt
if (parent && !has_object_file(&obj->oid)) {
printf_ln(_("broken link from %7s %s\n"
" to %7s %s"),
- printable_type(parent),
- describe_object(parent),
- printable_type(obj),
- describe_object(obj));
+ printable_type(&parent->oid, parent->type),
+ describe_object(&parent->oid),
+ printable_type(&obj->oid, obj->type),
+ describe_object(&obj->oid));
errors_found |= ERROR_REACHABLE;
}
return 1;
@@ -235,6 +222,48 @@ static int mark_used(struct object *obj, int type, void *data, struct fsck_optio
return 0;
}
+static void mark_unreachable_referents(const struct object_id *oid)
+{
+ struct fsck_options options = FSCK_OPTIONS_DEFAULT;
+ struct object *obj = lookup_object(the_repository, oid);
+
+ if (!obj || !(obj->flags & HAS_OBJ))
+ return; /* not part of our original set */
+ if (obj->flags & REACHABLE)
+ return; /* reachable objects already traversed */
+
+ /*
+ * Avoid passing OBJ_NONE to fsck_walk, which will parse the object
+ * (and we want to avoid parsing blobs).
+ */
+ if (obj->type == OBJ_NONE) {
+ enum object_type type = oid_object_info(the_repository,
+ &obj->oid, NULL);
+ if (type > 0)
+ object_as_type(the_repository, obj, type, 0);
+ }
+
+ options.walk = mark_used;
+ fsck_walk(obj, NULL, &options);
+}
+
+static int mark_loose_unreachable_referents(const struct object_id *oid,
+ const char *path,
+ void *data)
+{
+ mark_unreachable_referents(oid);
+ return 0;
+}
+
+static int mark_packed_unreachable_referents(const struct object_id *oid,
+ struct packed_git *pack,
+ uint32_t pos,
+ void *data)
+{
+ mark_unreachable_referents(oid);
+ return 0;
+}
+
/*
* Check a single reachable object
*/
@@ -250,8 +279,9 @@ static void check_reachable_object(struct object *obj)
return;
if (has_object_pack(&obj->oid))
return; /* it is in pack - forget about it */
- printf_ln(_("missing %s %s"), printable_type(obj),
- describe_object(obj));
+ printf_ln(_("missing %s %s"),
+ printable_type(&obj->oid, obj->type),
+ describe_object(&obj->oid));
errors_found |= ERROR_REACHABLE;
return;
}
@@ -276,8 +306,9 @@ static void check_unreachable_object(struct object *obj)
* since this is something that is prunable.
*/
if (show_unreachable) {
- printf_ln(_("unreachable %s %s"), printable_type(obj),
- describe_object(obj));
+ printf_ln(_("unreachable %s %s"),
+ printable_type(&obj->oid, obj->type),
+ describe_object(&obj->oid));
return;
}
@@ -295,12 +326,13 @@ static void check_unreachable_object(struct object *obj)
*/
if (!(obj->flags & USED)) {
if (show_dangling)
- printf_ln(_("dangling %s %s"), printable_type(obj),
- describe_object(obj));
+ printf_ln(_("dangling %s %s"),
+ printable_type(&obj->oid, obj->type),
+ describe_object(&obj->oid));
if (write_lost_and_found) {
char *filename = git_pathdup("lost-found/%s/%s",
obj->type == OBJ_COMMIT ? "commit" : "other",
- describe_object(obj));
+ describe_object(&obj->oid));
FILE *f;
if (safe_create_leading_directories_const(filename)) {
@@ -313,7 +345,7 @@ static void check_unreachable_object(struct object *obj)
if (stream_blob_to_fd(fileno(f), &obj->oid, NULL, 1))
die_errno(_("could not write '%s'"), filename);
} else
- fprintf(f, "%s\n", describe_object(obj));
+ fprintf(f, "%s\n", describe_object(&obj->oid));
if (fclose(f))
die_errno(_("could not finish '%s'"),
filename);
@@ -332,7 +364,7 @@ static void check_unreachable_object(struct object *obj)
static void check_object(struct object *obj)
{
if (verbose)
- fprintf_ln(stderr, _("Checking %s"), describe_object(obj));
+ fprintf_ln(stderr, _("Checking %s"), describe_object(&obj->oid));
if (obj->flags & REACHABLE)
check_reachable_object(obj);
@@ -347,6 +379,26 @@ static void check_connectivity(void)
/* Traverse the pending reachable objects */
traverse_reachable();
+ /*
+ * With --connectivity-only, we won't have actually opened and marked
+ * unreachable objects with USED. Do that now to make --dangling, etc
+ * accurate.
+ */
+ if (connectivity_only && (show_dangling || write_lost_and_found)) {
+ /*
+ * Even though we already have a "struct object" for each of
+ * these in memory, we must not iterate over the internal
+ * object hash as we do below. Our loop would potentially
+ * resize the hash, making our iteration invalid.
+ *
+ * Instead, we'll just go back to the source list of objects,
+ * and ignore any that weren't present in our earlier
+ * traversal.
+ */
+ for_each_loose_object(mark_loose_unreachable_referents, NULL, 0);
+ for_each_packed_object(mark_packed_unreachable_referents, NULL, 0);
+ }
+
/* Look up all the requirements, warn about missing objects.. */
max = get_max_object_index();
if (verbose)
@@ -370,7 +422,8 @@ static int fsck_obj(struct object *obj, void *buffer, unsigned long size)
if (verbose)
fprintf_ln(stderr, _("Checking %s %s"),
- printable_type(obj), describe_object(obj));
+ printable_type(&obj->oid, obj->type),
+ describe_object(&obj->oid));
if (fsck_walk(obj, NULL, &fsck_obj_options))
objerror(obj, _("broken links"));
@@ -383,7 +436,7 @@ static int fsck_obj(struct object *obj, void *buffer, unsigned long size)
if (!commit->parents && show_root)
printf_ln(_("root %s"),
- describe_object(&commit->object));
+ describe_object(&commit->object.oid));
}
if (obj->type == OBJ_TAG) {
@@ -391,10 +444,10 @@ static int fsck_obj(struct object *obj, void *buffer, unsigned long size)
if (show_tags && tag->tagged) {
printf_ln(_("tagged %s %s (%s) in %s"),
- printable_type(tag->tagged),
- describe_object(tag->tagged),
+ printable_type(&tag->tagged->oid, tag->tagged->type),
+ describe_object(&tag->tagged->oid),
tag->tag,
- describe_object(&tag->object));
+ describe_object(&tag->object.oid));
}
}
@@ -435,12 +488,12 @@ static void fsck_handle_reflog_oid(const char *refname, struct object_id *oid,
struct object *obj;
if (!is_null_oid(oid)) {
- obj = lookup_object(the_repository, oid->hash);
+ obj = lookup_object(the_repository, oid);
if (obj && (obj->flags & HAS_OBJ)) {
- if (timestamp && name_objects)
- add_decoration(fsck_walk_options.object_names,
- obj,
- xstrfmt("%s@{%"PRItime"}", refname, timestamp));
+ if (timestamp)
+ fsck_put_object_name(&fsck_walk_options, oid,
+ "%s@{%"PRItime"}",
+ refname, timestamp);
obj->flags |= USED;
mark_object_reachable(obj);
} else if (!is_promisor_object(oid)) {
@@ -504,9 +557,8 @@ static int fsck_handle_ref(const char *refname, const struct object_id *oid,
}
default_refs++;
obj->flags |= USED;
- if (name_objects)
- add_decoration(fsck_walk_options.object_names,
- obj, xstrdup(refname));
+ fsck_put_object_name(&fsck_walk_options,
+ oid, "%s", refname);
mark_object_reachable(obj);
return 0;
@@ -680,9 +732,7 @@ static int fsck_cache_tree(struct cache_tree *it)
return 1;
}
obj->flags |= USED;
- if (name_objects)
- add_decoration(fsck_walk_options.object_names,
- obj, xstrdup(":"));
+ fsck_put_object_name(&fsck_walk_options, &it->oid, ":");
mark_object_reachable(obj);
if (obj->type != OBJ_TREE)
err |= objerror(obj, _("non-tree in cache-tree"));
@@ -694,7 +744,7 @@ static int fsck_cache_tree(struct cache_tree *it)
static void mark_object_for_connectivity(const struct object_id *oid)
{
- struct object *obj = lookup_unknown_object(oid->hash);
+ struct object *obj = lookup_unknown_object(oid);
obj->flags |= HAS_OBJ;
}
@@ -768,8 +818,7 @@ int cmd_fsck(int argc, const char **argv, const char *prefix)
}
if (name_objects)
- fsck_walk_options.object_names =
- xcalloc(1, sizeof(struct decoration));
+ fsck_enable_object_names(&fsck_walk_options);
git_config(fsck_config, NULL);
@@ -817,7 +866,7 @@ int cmd_fsck(int argc, const char **argv, const char *prefix)
struct object_id oid;
if (!get_oid(arg, &oid)) {
struct object *obj = lookup_object(the_repository,
- oid.hash);
+ &oid);
if (!obj || !(obj->flags & HAS_OBJ)) {
if (is_promisor_object(&oid))
@@ -828,9 +877,8 @@ int cmd_fsck(int argc, const char **argv, const char *prefix)
}
obj->flags |= USED;
- if (name_objects)
- add_decoration(fsck_walk_options.object_names,
- obj, xstrdup(arg));
+ fsck_put_object_name(&fsck_walk_options, &oid,
+ "%s", arg);
mark_object_reachable(obj);
continue;
}
@@ -866,10 +914,8 @@ int cmd_fsck(int argc, const char **argv, const char *prefix)
continue;
obj = &blob->object;
obj->flags |= USED;
- if (name_objects)
- add_decoration(fsck_walk_options.object_names,
- obj,
- xstrfmt(":%s", active_cache[i]->name));
+ fsck_put_object_name(&fsck_walk_options, &obj->oid,
+ ":%s", active_cache[i]->name);
mark_object_reachable(obj);
}
if (active_cache_tree)