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-rw-r--r--fsck-objects.c39
1 files changed, 27 insertions, 12 deletions
diff --git a/fsck-objects.c b/fsck-objects.c
index 4ba3377ae..4d994f3fc 100644
--- a/fsck-objects.c
+++ b/fsck-objects.c
@@ -14,12 +14,12 @@
#define REACHABLE 0x0001
#define SEEN 0x0002
-static int show_root = 0;
-static int show_tags = 0;
-static int show_unreachable = 0;
-static int check_full = 0;
-static int check_strict = 0;
-static int keep_cache_objects = 0;
+static int show_root;
+static int show_tags;
+static int show_unreachable;
+static int check_full;
+static int check_strict;
+static int keep_cache_objects;
static unsigned char head_sha1[20];
#ifdef NO_D_INO_IN_DIRENT
@@ -356,7 +356,7 @@ static void add_sha1_list(unsigned char *sha1, unsigned long ino)
int nr;
entry->ino = ino;
- memcpy(entry->sha1, sha1, 20);
+ hashcpy(entry->sha1, sha1);
nr = sha1_list.nr;
if (nr == MAX_SHA1_ENTRIES) {
fsck_sha1_list();
@@ -400,7 +400,7 @@ static void fsck_dir(int i, char *path)
closedir(dir);
}
-static int default_refs = 0;
+static int default_refs;
static int fsck_handle_ref(const char *refname, const unsigned char *sha1)
{
@@ -425,8 +425,23 @@ static int fsck_handle_ref(const char *refname, const unsigned char *sha1)
static void get_default_heads(void)
{
for_each_ref(fsck_handle_ref);
- if (!default_refs)
- die("No default references");
+
+ /*
+ * Not having any default heads isn't really fatal, but
+ * it does mean that "--unreachable" no longer makes any
+ * sense (since in this case everything will obviously
+ * be unreachable by definition.
+ *
+ * Showing dangling objects is valid, though (as those
+ * dangling objects are likely lost heads).
+ *
+ * So we just print a warning about it, and clear the
+ * "show_unreachable" flag.
+ */
+ if (!default_refs) {
+ error("No default references");
+ show_unreachable = 0;
+ }
}
static void fsck_object_dir(const char *path)
@@ -443,7 +458,7 @@ static void fsck_object_dir(const char *path)
static int fsck_head_link(void)
{
unsigned char sha1[20];
- const char *git_HEAD = strdup(git_path("HEAD"));
+ const char *git_HEAD = xstrdup(git_path("HEAD"));
const char *git_refs_heads_master = resolve_ref(git_HEAD, sha1, 1);
int pfxlen = strlen(git_HEAD) - 4; /* strip .../.git/ part */
@@ -452,7 +467,7 @@ static int fsck_head_link(void)
if (strncmp(git_refs_heads_master + pfxlen, "refs/heads/", 11))
return error("HEAD points to something strange (%s)",
git_refs_heads_master + pfxlen);
- if (!memcmp(null_sha1, sha1, 20))
+ if (is_null_sha1(sha1))
return error("HEAD: not a valid git pointer");
return 0;
}