archive: remove args member from struct archiver

diff --git a/builtin-archive.c b/builtin-archive.c
index c2e0c1ea5a676f30baa52151d9e6a2a94d4cd091..6ee36775e7a63ad2b71d83204245a40f94729c40 100644 (file)
--- a/builtin-archive.c
+++ b/builtin-archive.c
@@ -15,12 +15,7 @@
 static const char archive_usage[] = \
 "git-archive --format=<fmt> [--prefix=<prefix>/] [--verbose] [<extra>] <tree-ish> [path...]";
 
-static struct archiver_desc
-{
-       const char *name;
-       write_archive_fn_t write_archive;
-       parse_extra_args_fn_t parse_extra;
-} archivers[] = {
+const struct archiver archivers[] = {
        { "tar", write_tar_archive, NULL },
        { "zip", write_zip_archive, parse_extra_zip_args },
 };
@@ -79,21 +74,15 @@ static int run_remote_archiver(const char *remote, int argc,
        return !!rv;
 }
 
-static int init_archiver(const char *name, struct archiver *ar)
+static const struct archiver *lookup_archiver(const char *name)
 {
-       int rv = -1, i;
+       int i;
 
        for (i = 0; i < ARRAY_SIZE(archivers); i++) {
-               if (!strcmp(name, archivers[i].name)) {
-                       memset(ar, 0, sizeof(*ar));
-                       ar->name = archivers[i].name;
-                       ar->write_archive = archivers[i].write_archive;
-                       ar->parse_extra = archivers[i].parse_extra;
-                       rv = 0;
-                       break;
-               }
+               if (!strcmp(name, archivers[i].name))
+                       return &archivers[i];
        }
-       return rv;
+       return NULL;
 }
 
 void parse_pathspec_arg(const char **pathspec, struct archiver_args *ar_args)
@@ -145,7 +134,8 @@ void parse_treeish_arg(const char **argv, struct archiver_args *ar_args,
        ar_args->time = archive_time;
 }
 
-int parse_archive_args(int argc, const char **argv, struct archiver *ar)
+int parse_archive_args(int argc, const char **argv, const struct archiver **ar,
+               struct archiver_args *args)
 {
        const char *extra_argv[MAX_EXTRA_ARGS];
        int extra_argc = 0;
@@ -190,17 +180,18 @@ int parse_archive_args(int argc, const char **argv, struct archiver *ar)
        /* We need at least one parameter -- tree-ish */
        if (argc - 1 < i)
                usage(archive_usage);
-       if (init_archiver(format, ar) < 0)
+       *ar = lookup_archiver(format);
+       if (!*ar)
                die("Unknown archive format '%s'", format);
 
        if (extra_argc) {
-               if (!ar->parse_extra)
+               if (!(*ar)->parse_extra)
                        die("'%s' format does not handle %s",
-                           ar->name, extra_argv[0]);
-               ar->args.extra = ar->parse_extra(extra_argc, extra_argv);
+                           (*ar)->name, extra_argv[0]);
+               args->extra = (*ar)->parse_extra(extra_argc, extra_argv);
        }
-       ar->args.verbose = verbose;
-       ar->args.base = base;
+       args->verbose = verbose;
+       args->base = base;
 
        return i;
 }
@@ -238,7 +229,8 @@ static const char *extract_remote_arg(int *ac, const char **av)
 
 int cmd_archive(int argc, const char **argv, const char *prefix)
 {
-       struct archiver ar;
+       const struct archiver *ar = NULL;
+       struct archiver_args args;
        int tree_idx;
        const char *remote = NULL;
 
@@ -248,14 +240,13 @@ int cmd_archive(int argc, const char **argv, const char *prefix)
 
        setvbuf(stderr, NULL, _IOLBF, BUFSIZ);
 
-       memset(&ar, 0, sizeof(ar));
-       tree_idx = parse_archive_args(argc, argv, &ar);
+       tree_idx = parse_archive_args(argc, argv, &ar, &args);
        if (prefix == NULL)
                prefix = setup_git_directory();
 
        argv += tree_idx;
-       parse_treeish_arg(argv, &ar.args, prefix);
-       parse_pathspec_arg(argv + 1, &ar.args);
+       parse_treeish_arg(argv, &args, prefix);
+       parse_pathspec_arg(argv + 1, &args);
 
-       return ar.write_archive(&ar.args);
+       return ar->write_archive(&args);
 }