gitmodules: document shallow recommendation

diff --git a/fsck.c b/fsck.c
index ca4c68537788496dea803b559e2ffd4cf1dbeea7..05315451c56fe19b2a2e8663d1f4847070bc946f 100644 (file)
--- a/fsck.c
+++ b/fsck.c
@@ -59,6 +59,7 @@
        FUNC(HAS_DOTGIT, WARN) \
        FUNC(NULL_SHA1, WARN) \
        FUNC(ZERO_PADDED_FILEMODE, WARN) \
+       FUNC(NUL_IN_COMMIT, WARN) \
        /* infos (reported as warnings, but ignored by default) */ \
        FUNC(BAD_TAG_NAME, INFO) \
        FUNC(MISSING_TAGGER_ENTRY, INFO)
@@ -312,9 +313,9 @@ static int fsck_walk_tree(struct tree *tree, void *data, struct fsck_options *op
                if (S_ISGITLINK(entry.mode))
                        continue;
                if (S_ISDIR(entry.mode))
-                       result = options->walk(&lookup_tree(entry.sha1)->object, OBJ_TREE, data, options);
+                       result = options->walk(&lookup_tree(entry.oid->hash)->object, OBJ_TREE, data, options);
                else if (S_ISREG(entry.mode) || S_ISLNK(entry.mode))
-                       result = options->walk(&lookup_blob(entry.sha1)->object, OBJ_BLOB, data, options);
+                       result = options->walk(&lookup_blob(entry.oid->hash)->object, OBJ_BLOB, data, options);
                else {
                        result = error("in tree %s: entry %s has bad mode %.6o",
                                        oid_to_hex(&tree->object.oid), entry.path, entry.mode);
@@ -450,11 +451,11 @@ static int fsck_tree(struct tree *item, struct fsck_options *options)
        while (desc.size) {
                unsigned mode;
                const char *name;
-               const unsigned char *sha1;
+               const struct object_id *oid;
 
-               sha1 = tree_entry_extract(&desc, &name, &mode);
+               oid = tree_entry_extract(&desc, &name, &mode);
 
-               has_null_sha1 |= is_null_sha1(sha1);
+               has_null_sha1 |= is_null_oid(oid);
                has_full_path |= !!strchr(name, '/');
                has_empty_name |= !*name;
                has_dot |= !strcmp(name, ".");
@@ -610,6 +611,7 @@ static int fsck_commit_buffer(struct commit *commit, const char *buffer,
        struct commit_graft *graft;
        unsigned parent_count, parent_line_count = 0, author_count;
        int err;
+       const char *buffer_begin = buffer;
 
        if (verify_headers(buffer, size, &commit->object, options))
                return -1;
@@ -666,9 +668,17 @@ static int fsck_commit_buffer(struct commit *commit, const char *buffer,
        err = fsck_ident(&buffer, &commit->object, options);
        if (err)
                return err;
-       if (!commit->tree)
-               return report(options, &commit->object, FSCK_MSG_BAD_TREE, "could not load commit's tree %s", sha1_to_hex(tree_sha1));
-
+       if (!commit->tree) {
+               err = report(options, &commit->object, FSCK_MSG_BAD_TREE, "could not load commit's tree %s", sha1_to_hex(tree_sha1));
+               if (err)
+                       return err;
+       }
+       if (memchr(buffer_begin, '\0', size)) {
+               err = report(options, &commit->object, FSCK_MSG_NUL_IN_COMMIT,
+                            "NUL byte in the commit object body");
+               if (err)
+                       return err;
+       }
        return 0;
 }