trailers: introduce struct new_trailer_item
[gitweb.git] / builtin / checkout.c
index 81f07c3ef271db08e36ee7a89b1d128d099ecb96..9661e1bcba31ffa4f7b8a2fb1a9d2060cb8efda7 100644 (file)
@@ -1,4 +1,5 @@
 #include "builtin.h"
+#include "config.h"
 #include "lockfile.h"
 #include "parse-options.h"
 #include "refs.h"
@@ -216,22 +217,24 @@ static int checkout_merged(int pos, const struct checkout *state)
        /*
         * NEEDSWORK:
         * There is absolutely no reason to write this as a blob object
-        * and create a phony cache entry just to leak.  This hack is
-        * primarily to get to the write_entry() machinery that massages
-        * the contents to work-tree format and writes out which only
-        * allows it for a cache entry.  The code in write_entry() needs
-        * to be refactored to allow us to feed a <buffer, size, mode>
-        * instead of a cache entry.  Such a refactoring would help
-        * merge_recursive as well (it also writes the merge result to the
-        * object database even when it may contain conflicts).
+        * and create a phony cache entry.  This hack is primarily to get
+        * to the write_entry() machinery that massages the contents to
+        * work-tree format and writes out which only allows it for a
+        * cache entry.  The code in write_entry() needs to be refactored
+        * to allow us to feed a <buffer, size, mode> instead of a cache
+        * entry.  Such a refactoring would help merge_recursive as well
+        * (it also writes the merge result to the object database even
+        * when it may contain conflicts).
         */
        if (write_sha1_file(result_buf.ptr, result_buf.size,
                            blob_type, oid.hash))
                die(_("Unable to add merge result for '%s'"), path);
+       free(result_buf.ptr);
        ce = make_cache_entry(mode, oid.hash, path, 2, 0);
        if (!ce)
                die(_("make_cache_entry failed for path '%s'"), path);
        status = checkout_entry(ce, state, NULL);
+       free(ce);
        return status;
 }
 
@@ -374,7 +377,7 @@ static int checkout_paths(const struct checkout_opts *opts,
                die(_("unable to write new index file"));
 
        read_ref_full("HEAD", 0, rev.hash, NULL);
-       head = lookup_commit_reference_gently(rev.hash, 1);
+       head = lookup_commit_reference_gently(&rev, 1);
 
        errs |= post_checkout_hook(head, head, 0);
        return errs;
@@ -508,10 +511,10 @@ static int merge_working_tree(const struct checkout_opts *opts,
                        setup_standard_excludes(topts.dir);
                }
                tree = parse_tree_indirect(old->commit ?
-                                          old->commit->object.oid.hash :
-                                          EMPTY_TREE_SHA1_BIN);
+                                          &old->commit->object.oid :
+                                          &empty_tree_oid);
                init_tree_desc(&trees[0], tree->buffer, tree->size);
-               tree = parse_tree_indirect(new->commit->object.oid.hash);
+               tree = parse_tree_indirect(&new->commit->object.oid);
                init_tree_desc(&trees[1], tree->buffer, tree->size);
 
                ret = unpack_trees(2, trees, &topts);
@@ -702,7 +705,7 @@ static int add_pending_uninteresting_ref(const char *refname,
                                         const struct object_id *oid,
                                         int flags, void *cb_data)
 {
-       add_pending_sha1(cb_data, refname, oid->hash, UNINTERESTING);
+       add_pending_oid(cb_data, refname, oid, UNINTERESTING);
        return 0;
 }
 
@@ -788,7 +791,7 @@ static void orphaned_commit_warning(struct commit *old, struct commit *new)
        add_pending_object(&revs, object, oid_to_hex(&object->oid));
 
        for_each_ref(add_pending_uninteresting_ref, &revs);
-       add_pending_sha1(&revs, "HEAD", new->object.oid.hash, UNINTERESTING);
+       add_pending_oid(&revs, "HEAD", &new->object.oid, UNINTERESTING);
 
        refs = revs.pending;
        revs.leak_pending = 1;
@@ -814,7 +817,8 @@ static int switch_branches(const struct checkout_opts *opts,
        int flag, writeout_error = 0;
        memset(&old, 0, sizeof(old));
        old.path = path_to_free = resolve_refdup("HEAD", 0, rev.hash, &flag);
-       old.commit = lookup_commit_reference_gently(rev.hash, 1);
+       if (old.path)
+               old.commit = lookup_commit_reference_gently(&rev, 1);
        if (!(flag & REF_ISSYMREF))
                old.path = NULL;
 
@@ -854,7 +858,7 @@ static int git_checkout_config(const char *var, const char *value, void *cb)
        }
 
        if (starts_with(var, "submodule."))
-               return parse_submodule_config_option(var, value);
+               return submodule_config(var, value, NULL);
 
        return git_xmerge_config(var, value, NULL);
 }
@@ -889,11 +893,10 @@ static int check_tracking_name(struct remote *remote, void *cb_data)
 static const char *unique_tracking_name(const char *name, struct object_id *oid)
 {
        struct tracking_name_data cb_data = { NULL, NULL, NULL, 1 };
-       char src_ref[PATH_MAX];
-       snprintf(src_ref, PATH_MAX, "refs/heads/%s", name);
-       cb_data.src_ref = src_ref;
+       cb_data.src_ref = xstrfmt("refs/heads/%s", name);
        cb_data.dst_oid = oid;
        for_each_remote(check_tracking_name, &cb_data);
+       free(cb_data.src_ref);
        if (cb_data.unique)
                return cb_data.dst_ref;
        free(cb_data.dst_ref);
@@ -1029,10 +1032,10 @@ static int parse_branchname_arg(int argc, const char **argv,
        else
                new->path = NULL; /* not an existing branch */
 
-       new->commit = lookup_commit_reference_gently(rev->hash, 1);
+       new->commit = lookup_commit_reference_gently(rev, 1);
        if (!new->commit) {
                /* not a commit */
-               *source_tree = parse_tree_indirect(rev->hash);
+               *source_tree = parse_tree_indirect(rev);
        } else {
                parse_commit_or_die(new->commit);
                *source_tree = new->commit->tree;
@@ -1163,6 +1166,9 @@ int cmd_checkout(int argc, const char **argv, const char *prefix)
                                N_("second guess 'git checkout <no-such-branch>'")),
                OPT_BOOL(0, "ignore-other-worktrees", &opts.ignore_other_worktrees,
                         N_("do not check if another worktree is holding the given ref")),
+               { OPTION_CALLBACK, 0, "recurse-submodules", NULL,
+                           "checkout", "control recursive updating of submodules",
+                           PARSE_OPT_OPTARG, option_parse_recurse_submodules_worktree_updater },
                OPT_BOOL(0, "progress", &opts.show_progress, N_("force progress reporting")),
                OPT_END(),
        };
@@ -1259,9 +1265,8 @@ int cmd_checkout(int argc, const char **argv, const char *prefix)
                 * new_branch && argc > 1 will be caught later.
                 */
                if (opts.new_branch && argc == 1)
-                       die(_("Cannot update paths and switch to branch '%s' at the same time.\n"
-                             "Did you intend to checkout '%s' which can not be resolved as commit?"),
-                           opts.new_branch, argv[0]);
+                       die(_("'%s' is not a commit and a branch '%s' cannot be created from it"),
+                               argv[0], opts.new_branch);
 
                if (opts.force_detach)
                        die(_("git checkout: --detach does not take a path argument '%s'"),