1 files changed, 0 insertions, 270 deletions
diff --git a/third_party/git/builtin/read-tree.c b/third_party/git/builtin/read-tree.c
deleted file mode 100644
index 485e7b047948..000000000000
--- a/third_party/git/builtin/read-tree.c
+++ /dev/null
@@ -1,270 +0,0 @@
-/*
- * GIT - The information manager from hell
- *
- * Copyright (C) Linus Torvalds, 2005
- */
-
-#define USE_THE_INDEX_COMPATIBILITY_MACROS
-#include "cache.h"
-#include "config.h"
-#include "lockfile.h"
-#include "object.h"
-#include "tree.h"
-#include "tree-walk.h"
-#include "cache-tree.h"
-#include "unpack-trees.h"
-#include "dir.h"
-#include "builtin.h"
-#include "parse-options.h"
-#include "resolve-undo.h"
-#include "submodule.h"
-#include "submodule-config.h"
-
-static int nr_trees;
-static int read_empty;
-static struct tree *trees[MAX_UNPACK_TREES];
-
-static int list_tree(struct object_id *oid)
-{
-	struct tree *tree;
-
-	if (nr_trees >= MAX_UNPACK_TREES)
-		die("I cannot read more than %d trees", MAX_UNPACK_TREES);
-	tree = parse_tree_indirect(oid);
-	if (!tree)
-		return -1;
-	trees[nr_trees++] = tree;
-	return 0;
-}
-
-static const char * const read_tree_usage[] = {
-	N_("git read-tree [(-m [--trivial] [--aggressive] | --reset | --prefix=<prefix>) [-u [--exclude-per-directory=<gitignore>] | -i]] [--no-sparse-checkout] [--index-output=<file>] (--empty | <tree-ish1> [<tree-ish2> [<tree-ish3>]])"),
-	NULL
-};
-
-static int index_output_cb(const struct option *opt, const char *arg,
-				 int unset)
-{
-	BUG_ON_OPT_NEG(unset);
-	set_alternate_index_output(arg);
-	return 0;
-}
-
-static int exclude_per_directory_cb(const struct option *opt, const char *arg,
-				    int unset)
-{
-	struct dir_struct *dir;
-	struct unpack_trees_options *opts;
-
-	BUG_ON_OPT_NEG(unset);
-
-	opts = (struct unpack_trees_options *)opt->value;
-
-	if (opts->dir)
-		die("more than one --exclude-per-directory given.");
-
-	dir = xcalloc(1, sizeof(*opts->dir));
-	dir->flags |= DIR_SHOW_IGNORED;
-	dir->exclude_per_dir = arg;
-	opts->dir = dir;
-	/* We do not need to nor want to do read-directory
-	 * here; we are merely interested in reusing the
-	 * per directory ignore stack mechanism.
-	 */
-	return 0;
-}
-
-static void debug_stage(const char *label, const struct cache_entry *ce,
-			struct unpack_trees_options *o)
-{
-	printf("%s ", label);
-	if (!ce)
-		printf("(missing)\n");
-	else if (ce == o->df_conflict_entry)
-		printf("(conflict)\n");
-	else
-		printf("%06o #%d %s %.8s\n",
-		       ce->ce_mode, ce_stage(ce), ce->name,
-		       oid_to_hex(&ce->oid));
-}
-
-static int debug_merge(const struct cache_entry * const *stages,
-		       struct unpack_trees_options *o)
-{
-	int i;
-
-	printf("* %d-way merge\n", o->merge_size);
-	debug_stage("index", stages[0], o);
-	for (i = 1; i <= o->merge_size; i++) {
-		char buf[24];
-		xsnprintf(buf, sizeof(buf), "ent#%d", i);
-		debug_stage(buf, stages[i], o);
-	}
-	return 0;
-}
-
-static int git_read_tree_config(const char *var, const char *value, void *cb)
-{
-	if (!strcmp(var, "submodule.recurse"))
-		return git_default_submodule_config(var, value, cb);
-
-	return git_default_config(var, value, cb);
-}
-
-int cmd_read_tree(int argc, const char **argv, const char *cmd_prefix)
-{
-	int i, stage = 0;
-	struct object_id oid;
-	struct tree_desc t[MAX_UNPACK_TREES];
-	struct unpack_trees_options opts;
-	int prefix_set = 0;
-	struct lock_file lock_file = LOCK_INIT;
-	const struct option read_tree_options[] = {
-		OPT_CALLBACK_F(0, "index-output", NULL, N_("file"),
-		  N_("write resulting index to <file>"),
-		  PARSE_OPT_NONEG, index_output_cb),
-		OPT_BOOL(0, "empty", &read_empty,
-			    N_("only empty the index")),
-		OPT__VERBOSE(&opts.verbose_update, N_("be verbose")),
-		OPT_GROUP(N_("Merging")),
-		OPT_BOOL('m', NULL, &opts.merge,
-			 N_("perform a merge in addition to a read")),
-		OPT_BOOL(0, "trivial", &opts.trivial_merges_only,
-			 N_("3-way merge if no file level merging required")),
-		OPT_BOOL(0, "aggressive", &opts.aggressive,
-			 N_("3-way merge in presence of adds and removes")),
-		OPT_BOOL(0, "reset", &opts.reset,
-			 N_("same as -m, but discard unmerged entries")),
-		{ OPTION_STRING, 0, "prefix", &opts.prefix, N_("<subdirectory>/"),
-		  N_("read the tree into the index under <subdirectory>/"),
-		  PARSE_OPT_NONEG },
-		OPT_BOOL('u', NULL, &opts.update,
-			 N_("update working tree with merge result")),
-		OPT_CALLBACK_F(0, "exclude-per-directory", &opts,
-		  N_("gitignore"),
-		  N_("allow explicitly ignored files to be overwritten"),
-		  PARSE_OPT_NONEG, exclude_per_directory_cb),
-		OPT_BOOL('i', NULL, &opts.index_only,
-			 N_("don't check the working tree after merging")),
-		OPT__DRY_RUN(&opts.dry_run, N_("don't update the index or the work tree")),
-		OPT_BOOL(0, "no-sparse-checkout", &opts.skip_sparse_checkout,
-			 N_("skip applying sparse checkout filter")),
-		OPT_BOOL(0, "debug-unpack", &opts.debug_unpack,
-			 N_("debug unpack-trees")),
-		OPT_CALLBACK_F(0, "recurse-submodules", NULL,
-			    "checkout", "control recursive updating of submodules",
-			    PARSE_OPT_OPTARG, option_parse_recurse_submodules_worktree_updater),
-		OPT__QUIET(&opts.quiet, N_("suppress feedback messages")),
-		OPT_END()
-	};
-
-	memset(&opts, 0, sizeof(opts));
-	opts.head_idx = -1;
-	opts.src_index = &the_index;
-	opts.dst_index = &the_index;
-
-	git_config(git_read_tree_config, NULL);
-
-	argc = parse_options(argc, argv, cmd_prefix, read_tree_options,
-			     read_tree_usage, 0);
-
-	hold_locked_index(&lock_file, LOCK_DIE_ON_ERROR);
-
-	prefix_set = opts.prefix ? 1 : 0;
-	if (1 < opts.merge + opts.reset + prefix_set)
-		die("Which one? -m, --reset, or --prefix?");
-
-	/*
-	 * NEEDSWORK
-	 *
-	 * The old index should be read anyway even if we're going to
-	 * destroy all index entries because we still need to preserve
-	 * certain information such as index version or split-index
-	 * mode.
-	 */
-
-	if (opts.reset || opts.merge || opts.prefix) {
-		if (read_cache_unmerged() && (opts.prefix || opts.merge))
-			die(_("You need to resolve your current index first"));
-		stage = opts.merge = 1;
-	}
-	resolve_undo_clear();
-
-	for (i = 0; i < argc; i++) {
-		const char *arg = argv[i];
-
-		if (get_oid(arg, &oid))
-			die("Not a valid object name %s", arg);
-		if (list_tree(&oid) < 0)
-			die("failed to unpack tree object %s", arg);
-		stage++;
-	}
-	if (!nr_trees && !read_empty && !opts.merge)
-		warning("read-tree: emptying the index with no arguments is deprecated; use --empty");
-	else if (nr_trees > 0 && read_empty)
-		die("passing trees as arguments contradicts --empty");
-
-	if (1 < opts.index_only + opts.update)
-		die("-u and -i at the same time makes no sense");
-	if ((opts.update || opts.index_only) && !opts.merge)
-		die("%s is meaningless without -m, --reset, or --prefix",
-		    opts.update ? "-u" : "-i");
-	if ((opts.dir && !opts.update))
-		die("--exclude-per-directory is meaningless unless -u");
-	if (opts.merge && !opts.index_only)
-		setup_work_tree();
-
-	if (opts.merge) {
-		switch (stage - 1) {
-		case 0:
-			die("you must specify at least one tree to merge");
-			break;
-		case 1:
-			opts.fn = opts.prefix ? bind_merge : oneway_merge;
-			break;
-		case 2:
-			opts.fn = twoway_merge;
-			opts.initial_checkout = is_cache_unborn();
-			break;
-		case 3:
-		default:
-			opts.fn = threeway_merge;
-			break;
-		}
-
-		if (stage - 1 >= 3)
-			opts.head_idx = stage - 2;
-		else
-			opts.head_idx = 1;
-	}
-
-	if (opts.debug_unpack)
-		opts.fn = debug_merge;
-
-	cache_tree_free(&active_cache_tree);
-	for (i = 0; i < nr_trees; i++) {
-		struct tree *tree = trees[i];
-		parse_tree(tree);
-		init_tree_desc(t+i, tree->buffer, tree->size);
-	}
-	if (unpack_trees(nr_trees, t, &opts))
-		return 128;
-
-	if (opts.debug_unpack || opts.dry_run)
-		return 0; /* do not write the index out */
-
-	/*
-	 * When reading only one tree (either the most basic form,
-	 * "-m ent" or "--reset ent" form), we can obtain a fully
-	 * valid cache-tree because the index must match exactly
-	 * what came from the tree.
-	 */
-	if (nr_trees == 1 && !opts.prefix)
-		prime_cache_tree(the_repository,
-				 the_repository->index,
-				 trees[0]);
-
-	if (write_locked_index(&the_index, &lock_file, COMMIT_LOCK))
-		die("unable to write new index file");
-	return 0;
-}