Use symbolic name SHORT_NAME_AMBIGUOUS as error return value

[thirdparty/git.git] / fsck-objects.c

diff --git a/fsck-objects.c b/fsck-objects.c
index 6cb0f29be8a1eed5c22c90894560e399aa537f56..9950be264501a5c99eafe7c2438b27b857ba6402 100644 (file)
--- a/fsck-objects.c
+++ b/fsck-objects.c
@@ -20,6 +20,13 @@ static int check_strict = 0;
 static int keep_cache_objects = 0; 
 static unsigned char head_sha1[20];
 
+#if 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)
@@ -30,7 +37,7 @@ static void objreport(struct object *obj, const char *severity,
        fputs("\n", stderr);
 }
 
-int objerror(struct object *obj, const char *err, ...)
+static int objerror(struct object *obj, const char *err, ...)
 {
        va_list params;
        va_start(params, err);
@@ -39,7 +46,7 @@ int objerror(struct object *obj, const char *err, ...)
        return -1;
 }
 
-int objwarning(struct object *obj, const char *err, ...)
+static int objwarning(struct object *obj, const char *err, ...)
 {
        va_list params;
        va_start(params, err);
@@ -56,7 +63,6 @@ static void check_connectivity(void)
        /* Look up all the requirements, warn about missing objects.. */
        for (i = 0; i < nr_objs; i++) {
                struct object *obj = objs[i];
-               struct object_list *refs;
 
                if (!obj->parsed) {
                        if (!standalone && has_sha1_file(obj->sha1))
@@ -67,14 +73,19 @@ 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 ||
+                                   (!standalone && 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)) {
@@ -184,10 +195,17 @@ 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) {
@@ -296,7 +314,9 @@ 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;
@@ -329,9 +349,8 @@ 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];
@@ -351,7 +370,7 @@ 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);
@@ -402,28 +421,17 @@ 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 = getenv(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;
 }
@@ -432,6 +440,8 @@ int main(int argc, char **argv)
 {
        int i, heads;
 
+       setup_git_directory();
+
        for (i = 1; i < argc; i++) {
                const char *arg = argv[i];