X-Git-Url: https://git.octo.it/?a=blobdiff_plain;f=fsck-objects.c;h=59b25904cb0f6e87594e2bad20db3ee2aa726aef;hb=b9aa1f9e9d8f05f350c2e14d6389a5e8596033e9;hp=43d188a139eaf5ea3e5dab100fdd7a284fa722c7;hpb=215a7ad1ef790467a4cd3f0dcffbd6e5f04c38f7;p=git.git

diff --git a/fsck-objects.c b/fsck-objects.c
index 43d188a1..59b25904 100644
--- a/fsck-objects.c
+++ b/fsck-objects.c
@@ -14,23 +14,60 @@
 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 check_strict = 0;
-static int keep_cache_objects = 0; 
+static int keep_cache_objects = 0;
 static unsigned char head_sha1[20];
 
+#ifdef NO_D_INO_IN_DIRENT
+#define SORT_DIRENT 0
+#define DIRENT_SORT_HINT(de) 0
+#else
+#define SORT_DIRENT 1
+#define DIRENT_SORT_HINT(de) ((de)->d_ino)
+#endif
+
+static void objreport(struct object *obj, const char *severity,
+                      const char *err, va_list params)
+{
+	fprintf(stderr, "%s in %s %s: ",
+	        severity, obj->type, sha1_to_hex(obj->sha1));
+	vfprintf(stderr, err, params);
+	fputs("\n", stderr);
+}
+
+static int objerror(struct object *obj, const char *err, ...)
+{
+	va_list params;
+	va_start(params, err);
+	objreport(obj, "error", err, params);
+	va_end(params);
+	return -1;
+}
+
+static int objwarning(struct object *obj, const char *err, ...)
+{
+	va_list params;
+	va_start(params, err);
+	objreport(obj, "warning", err, params);
+	va_end(params);
+	return -1;
+}
+
+
 static void check_connectivity(void)
 {
 	int i;
 
 	/* Look up all the requirements, warn about missing objects.. */
-	for (i = 0; i < nr_objs; i++) {
+	for (i = 0; i < obj_allocs; i++) {
 		struct object *obj = objs[i];
-		struct object_list *refs;
+
+		if (!obj)
+			continue;
 
 		if (!obj->parsed) {
-			if (!standalone && has_sha1_file(obj->sha1))
+			if (has_sha1_file(obj->sha1))
 				; /* it is in pack */
 			else
 				printf("missing %s %s\n",
@@ -38,14 +75,19 @@ static void check_connectivity(void)
 			continue;
 		}
 
-		for (refs = obj->refs; refs; refs = refs->next) {
-			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));
-			printf("              to %7s %s\n",
-			       refs->item->type, sha1_to_hex(refs->item->sha1));
+		if (obj->refs) {
+			const struct object_refs *refs = obj->refs;
+			unsigned j;
+			for (j = 0; j < refs->count; j++) {
+				struct object *ref = refs->ref[j];
+				if (ref->parsed ||
+				    (has_sha1_file(ref->sha1)))
+					continue;
+				printf("broken link from %7s %s\n",
+				       obj->type, sha1_to_hex(obj->sha1));
+				printf("              to %7s %s\n",
+				       ref->type, sha1_to_hex(ref->sha1));
+			}
 		}
 
 		if (show_unreachable && !(obj->flags & REACHABLE)) {
@@ -155,38 +197,33 @@ static int fsck_tree(struct tree *item)
 			default:
 				break;
 			}
+			free(last->name);
+			free(last);
 		}
 
 		last = entry;
 	}
+	if (last) {
+		free(last->name);
+		free(last);
+	}
+	item->entries = NULL;
 
 	retval = 0;
 	if (has_full_path) {
-		fprintf(stderr, "warning: git-fsck-objects: tree %s "
-			"has full pathnames in it\n", 
-			sha1_to_hex(item->object.sha1));
+		objwarning(&item->object, "contains full pathnames");
 	}
 	if (has_zero_pad) {
-		fprintf(stderr, "warning: git-fsck-objects: tree %s "
-			"has zero-padded file modes in it\n",
-			sha1_to_hex(item->object.sha1));
+		objwarning(&item->object, "contains zero-padded file modes");
 	}
 	if (has_bad_modes) {
-		fprintf(stderr, "warning: git-fsck-objects: tree %s "
-			"has bad file modes in it\n",
-			sha1_to_hex(item->object.sha1));
+		objwarning(&item->object, "contains bad file modes");
 	}
 	if (has_dup_entries) {
-		fprintf(stderr, "error: git-fsck-objects: tree %s "
-			"has duplicate file entries\n",
-			sha1_to_hex(item->object.sha1));
-		retval = -1;
+		retval = objerror(&item->object, "contains duplicate file entries");
 	}
 	if (not_properly_sorted) {
-		fprintf(stderr, "error: git-fsck-objects: tree %s "
-			"is not properly sorted\n",
-			sha1_to_hex(item->object.sha1));
-		retval = -1;
+		retval = objerror(&item->object, "not properly sorted");
 	}
 	return retval;
 }
@@ -194,24 +231,24 @@ static int fsck_tree(struct tree *item)
 static int fsck_commit(struct commit *commit)
 {
 	char *buffer = commit->buffer;
-	unsigned char sha1[20];
+	unsigned char tree_sha1[20], sha1[20];
 
 	if (memcmp(buffer, "tree ", 5))
-		return -1;
-	if (get_sha1_hex(buffer+5, sha1) || buffer[45] != '\n')
-		return -1;
+		return objerror(&commit->object, "invalid format - expected 'tree' line");
+	if (get_sha1_hex(buffer+5, tree_sha1) || buffer[45] != '\n')
+		return objerror(&commit->object, "invalid 'tree' line format - bad sha1");
 	buffer += 46;
 	while (!memcmp(buffer, "parent ", 7)) {
 		if (get_sha1_hex(buffer+7, sha1) || buffer[47] != '\n')
-			return -1;
+			return objerror(&commit->object, "invalid 'parent' line format - bad sha1");
 		buffer += 48;
 	}
 	if (memcmp(buffer, "author ", 7))
-		return -1;
+		return objerror(&commit->object, "invalid format - expected 'author' line");
 	free(commit->buffer);
 	commit->buffer = NULL;
 	if (!commit->tree)
-		return -1;
+		return objerror(&commit->object, "could not load commit's tree %s", tree_sha1);
 	if (!commit->parents && show_root)
 		printf("root %s\n", sha1_to_hex(commit->object.sha1));
 	if (!commit->date)
@@ -225,8 +262,7 @@ static int fsck_tag(struct tag *tag)
 	struct object *tagged = tag->tagged;
 
 	if (!tagged) {
-		printf("bad object in tag %s\n", sha1_to_hex(tag->object.sha1));
-		return -1;
+		return objerror(&tag->object, "could not load tagged object");
 	}
 	if (!show_tags)
 		return 0;
@@ -240,7 +276,7 @@ static int fsck_sha1(unsigned char *sha1)
 {
 	struct object *obj = parse_object(sha1);
 	if (!obj)
-		return -1;
+		return error("%s: object not found", sha1_to_hex(sha1));
 	if (obj->type == blob_type)
 		return 0;
 	if (obj->type == tree_type)
@@ -249,7 +285,8 @@ static int fsck_sha1(unsigned char *sha1)
 		return fsck_commit((struct commit *) obj);
 	if (obj->type == tag_type)
 		return fsck_tag((struct tag *) obj);
-	return -1;
+	/* By now, parse_object() would've returned NULL instead. */
+	return objerror(obj, "unknown type '%s' (internal fsck error)", obj->type);
 }
 
 /*
@@ -279,14 +316,15 @@ static void fsck_sha1_list(void)
 {
 	int i, nr = sha1_list.nr;
 
-	qsort(sha1_list.entry, nr, sizeof(struct sha1_entry *), ino_compare);
+	if (SORT_DIRENT)
+		qsort(sha1_list.entry, nr,
+		      sizeof(struct sha1_entry *), ino_compare);
 	for (i = 0; i < nr; i++) {
 		struct sha1_entry *entry = sha1_list.entry[i];
 		unsigned char *sha1 = entry->sha1;
 
 		sha1_list.entry[i] = NULL;
-		if (fsck_sha1(sha1) < 0)
-			fprintf(stderr, "bad sha1 entry '%s'\n", sha1_to_hex(sha1));
+		fsck_sha1(sha1);
 		free(entry);
 	}
 	sha1_list.nr = 0;
@@ -313,9 +351,8 @@ static int fsck_dir(int i, char *path)
 	DIR *dir = opendir(path);
 	struct dirent *de;
 
-	if (!dir) {
-		return error("missing sha1 directory '%s'", path);
-	}
+	if (!dir)
+		return 0;
 
 	while ((de = readdir(dir)) != NULL) {
 		char name[100];
@@ -335,7 +372,7 @@ static int fsck_dir(int i, char *path)
 			memcpy(name+2, de->d_name, len+1);
 			if (get_sha1_hex(name, sha1) < 0)
 				break;
-			add_sha1_list(sha1, de->d_ino);
+			add_sha1_list(sha1, DIRENT_SORT_HINT(de));
 			continue;
 		}
 		fprintf(stderr, "bad sha1 file: %s/%s\n", path, de->d_name);
@@ -352,7 +389,7 @@ static int fsck_handle_ref(const char *refname, const unsigned char *sha1)
 
 	obj = lookup_object(sha1);
 	if (!obj) {
-		if (!standalone && has_sha1_file(sha1)) {
+		if (has_sha1_file(sha1)) {
 			default_refs++;
 			return 0; /* it is in a pack */
 		}
@@ -386,28 +423,17 @@ static void fsck_object_dir(const char *path)
 
 static int fsck_head_link(void)
 {
-	int fd, count;
-	char hex[40];
 	unsigned char sha1[20];
-	static char path[PATH_MAX], link[PATH_MAX];
-	const char *git_dir;
-
-	git_dir = gitenv(GIT_DIR_ENVIRONMENT);
-	if (!git_dir) git_dir = 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))
+	const char *git_HEAD = strdup(git_path("HEAD"));
+	const char *git_refs_heads_master = resolve_ref(git_HEAD, sha1, 1);
+	int pfxlen = strlen(git_HEAD) - 4; /* strip .../.git/ part */
+
+	if (!git_refs_heads_master)
+		return error("HEAD is not a symbolic ref");
+	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))
 		return error("HEAD: not a valid git pointer");
 	return 0;
 }
@@ -416,6 +442,8 @@ int main(int argc, char **argv)
 {
 	int i, heads;
 
+	setup_git_directory();
+
 	for (i = 1; i < argc; i++) {
 		const char *arg = argv[i];
 
@@ -435,10 +463,6 @@ int main(int argc, char **argv)
 			keep_cache_objects = 1;
 			continue;
 		}
-		if (!strcmp(arg, "--standalone")) {
-			standalone = 1;
-			continue;
-		}
 		if (!strcmp(arg, "--full")) {
 			check_full = 1;
 			continue;
@@ -448,14 +472,9 @@ int main(int argc, char **argv)
 			continue;
 		}
 		if (*arg == '-')
-			usage("git-fsck-objects [--tags] [--root] [[--unreachable] [--cache] [--standalone | --full] [--strict] <head-sha1>*]");
+			usage("git-fsck-objects [--tags] [--root] [[--unreachable] [--cache] [--full] [--strict] <head-sha1>*]");
 	}
 
-	if (standalone && check_full)
-		die("Only one of --standalone or --full can be used.");
-	if (standalone)
-		putenv("GIT_ALTERNATE_OBJECT_DIRECTORIES=");
-
 	fsck_head_link();
 	fsck_object_dir(get_object_directory());
 	if (check_full) {
@@ -479,9 +498,7 @@ int main(int argc, char **argv)
 			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(sha1);
 			}
 		}
 	}
@@ -505,7 +522,7 @@ int main(int argc, char **argv)
 			heads++;
 			continue;
 		}
-		error("expected sha1, got %s", arg);
+		error("invalid parameter: expected sha1, got '%s'", arg);
 	}
 
 	/*