grep doc: add --break / --heading / -W to synopsis

[git.git] / archive.c

diff --git a/archive.c b/archive.c
index 2ae740a71e6d43ee81afdeddcb53f983f10a8fff..1ee837d7170cfa52da6725cfe7c5ae0d6d67462e 100644 (file)
--- a/archive.c
+++ b/archive.c
@@ -247,7 +247,8 @@ static void parse_pathspec_arg(const char **pathspec,
 }
 
 static void parse_treeish_arg(const char **argv,
-               struct archiver_args *ar_args, const char *prefix)
+               struct archiver_args *ar_args, const char *prefix,
+               int remote)
 {
        const char *name = argv[0];
        const unsigned char *commit_sha1;
@@ -256,6 +257,24 @@ static void parse_treeish_arg(const char **argv,
        const struct commit *commit;
        unsigned char sha1[20];
 
+       /* Remotes are only allowed to fetch actual refs */
+       if (remote) {
+               char *ref = NULL;
+               const char *refname, *colon = NULL;
+
+               colon = strchr(name, ':');
+               if (colon)
+                       refname = xstrndup(name, colon - name);
+               else
+                       refname = name;
+
+               if (!dwim_ref(refname, strlen(refname), sha1, &ref))
+                       die("no such ref: %s", refname);
+               if (refname != name)
+                       free((void *)refname);
+               free(ref);
+       }
+
        if (get_sha1(name, sha1))
                die("Not a valid object name");
 
@@ -414,7 +433,7 @@ int write_archive(int argc, const char **argv, const char *prefix,
                setup_git_directory();
        }
 
-       parse_treeish_arg(argv, &args, prefix);
+       parse_treeish_arg(argv, &args, prefix, remote);
        parse_pathspec_arg(argv + 1, &args);
 
        return ar->write_archive(ar, &args);