Imported Upstream version 2.4.3

[platform/upstream/git.git] / builtin / clone.c

diff --git a/builtin/clone.c b/builtin/clone.c
index d5e7532..13030ee 100644 (file)
--- a/builtin/clone.c
+++ b/builtin/clone.c
@@ -34,7 +34,7 @@
  *
  */
 static const char * const builtin_clone_usage[] = {
-       N_("git clone [options] [--] <repo> [<dir>]"),
+       N_("git clone [<options>] [--] <repo> [<dir>]"),
        NULL
 };
 
@@ -49,6 +49,7 @@ static int option_verbosity;
 static int option_progress = -1;
 static struct string_list option_config;
 static struct string_list option_reference;
+static int option_dissociate;
 
 static int opt_parse_reference(const struct option *opt, const char *arg, int unset)
 {
@@ -94,6 +95,8 @@ static struct option builtin_clone_options[] = {
                    N_("create a shallow clone of that depth")),
        OPT_BOOL(0, "single-branch", &option_single_branch,
                    N_("clone only one branch, HEAD or --branch")),
+       OPT_BOOL(0, "dissociate", &option_dissociate,
+                N_("use --reference only while cloning")),
        OPT_STRING(0, "separate-git-dir", &real_git_dir, N_("gitdir"),
                   N_("separate git dir from working tree")),
        OPT_STRING_LIST('c', "config", &option_config, N_("key=value"),
@@ -735,6 +738,16 @@ static void write_refspec_config(const char *src_ref_prefix,
        strbuf_release(&value);
 }
 
+static void dissociate_from_references(void)
+{
+       static const char* argv[] = { "repack", "-a", "-d", NULL };
+
+       if (run_command_v_opt(argv, RUN_GIT_CMD|RUN_COMMAND_NO_STDIN))
+               die(_("cannot repack to clean up"));
+       if (unlink(git_path("objects/info/alternates")) && errno != ENOENT)
+               die_errno(_("cannot unlink temporary alternates file"));
+}
+
 int cmd_clone(int argc, const char **argv, const char *prefix)
 {
        int is_bundle = 0, is_local;
@@ -829,20 +842,21 @@ int cmd_clone(int argc, const char **argv, const char *prefix)
                git_dir = mkpathdup("%s/.git", dir);
        }
 
+       atexit(remove_junk);
+       sigchain_push_common(remove_junk_on_signal);
+
        if (!option_bare) {
-               junk_work_tree = work_tree;
                if (safe_create_leading_directories_const(work_tree) < 0)
                        die_errno(_("could not create leading directories of '%s'"),
                                  work_tree);
                if (!dest_exists && mkdir(work_tree, 0777))
-                       die_errno(_("could not create work tree dir '%s'."),
+                       die_errno(_("could not create work tree dir '%s'"),
                                  work_tree);
+               junk_work_tree = work_tree;
                set_git_work_tree(work_tree);
        }
-       junk_git_dir = git_dir;
-       atexit(remove_junk);
-       sigchain_push_common(remove_junk_on_signal);
 
+       junk_git_dir = git_dir;
        if (safe_create_leading_directories_const(git_dir) < 0)
                die(_("could not create leading directories of '%s'"), git_dir);
 
@@ -880,6 +894,10 @@ int cmd_clone(int argc, const char **argv, const char *prefix)
 
        if (option_reference.nr)
                setup_reference();
+       else if (option_dissociate) {
+               warning(_("--dissociate given, but there is no --reference"));
+               option_dissociate = 0;
+       }
 
        fetch_pattern = value.buf;
        refspec = parse_fetch_refspec(1, &fetch_pattern);
@@ -888,6 +906,8 @@ int cmd_clone(int argc, const char **argv, const char *prefix)
 
        remote = remote_get(option_origin);
        transport = transport_get(remote, remote->url[0]);
+       transport_set_verbosity(transport, option_verbosity, option_progress);
+
        path = get_repo_path(remote->url[0], &is_bundle);
        is_local = option_local != 0 && path && !is_bundle;
        if (is_local) {
@@ -914,8 +934,6 @@ int cmd_clone(int argc, const char **argv, const char *prefix)
        if (option_single_branch)
                transport_set_option(transport, TRANS_OPT_FOLLOWTAGS, "1");
 
-       transport_set_verbosity(transport, option_verbosity, option_progress);
-
        if (option_upload_pack)
                transport_set_option(transport, TRANS_OPT_UPLOADPACK,
                                     option_upload_pack);
@@ -993,6 +1011,9 @@ int cmd_clone(int argc, const char **argv, const char *prefix)
        transport_unlock_pack(transport);
        transport_disconnect(transport);
 
+       if (option_dissociate)
+               dissociate_from_references();
+
        junk_mode = JUNK_LEAVE_REPO;
        err = checkout();