1 files changed, 0 insertions, 137 deletions
diff --git a/builtin-diff-tree.c b/builtin-diff-tree.c
deleted file mode 100644
index 24cb2d7f84..0000000000
--- a/builtin-diff-tree.c
+++ /dev/null
@@ -1,137 +0,0 @@
-#include "cache.h"
-#include "diff.h"
-#include "commit.h"
-#include "log-tree.h"
-#include "builtin.h"
-
-static struct rev_info log_tree_opt;
-
-static int diff_tree_commit_sha1(const unsigned char *sha1)
-{
-	struct commit *commit = lookup_commit_reference(sha1);
-	if (!commit)
-		return -1;
-	return log_tree_commit(&log_tree_opt, commit);
-}
-
-static int diff_tree_stdin(char *line)
-{
-	int len = strlen(line);
-	unsigned char sha1[20];
-	struct commit *commit;
-
-	if (!len || line[len-1] != '\n')
-		return -1;
-	line[len-1] = 0;
-	if (get_sha1_hex(line, sha1))
-		return -1;
-	commit = lookup_commit(sha1);
-	if (!commit || parse_commit(commit))
-		return -1;
-	if (isspace(line[40]) && !get_sha1_hex(line+41, sha1)) {
-		/* Graft the fake parents locally to the commit */
-		int pos = 41;
-		struct commit_list **pptr, *parents;
-
-		/* Free the real parent list */
-		for (parents = commit->parents; parents; ) {
-			struct commit_list *tmp = parents->next;
-			free(parents);
-			parents = tmp;
-		}
-		commit->parents = NULL;
-		pptr = &(commit->parents);
-		while (line[pos] && !get_sha1_hex(line + pos, sha1)) {
-			struct commit *parent = lookup_commit(sha1);
-			if (parent) {
-				pptr = &commit_list_insert(parent, pptr)->next;
-			}
-			pos += 41;
-		}
-	}
-	return log_tree_commit(&log_tree_opt, commit);
-}
-
-static const char diff_tree_usage[] =
-"git-diff-tree [--stdin] [-m] [-c] [--cc] [-s] [-v] [--pretty] [-t] [-r] [--root] "
-"[<common diff options>] <tree-ish> [<tree-ish>] [<path>...]\n"
-"  -r            diff recursively\n"
-"  --root        include the initial commit as diff against /dev/null\n"
-COMMON_DIFF_OPTIONS_HELP;
-
-int cmd_diff_tree(int argc, const char **argv, const char *prefix)
-{
-	int nr_sha1;
-	char line[1000];
-	struct object *tree1, *tree2;
-	static struct rev_info *opt = &log_tree_opt;
-	int read_stdin = 0;
-
-	init_revisions(opt, prefix);
-	git_config(git_default_config); /* no "diff" UI options */
-	nr_sha1 = 0;
-	opt->abbrev = 0;
-	opt->diff = 1;
-	argc = setup_revisions(argc, argv, opt, NULL);
-
-	while (--argc > 0) {
-		const char *arg = *++argv;
-
-		if (!strcmp(arg, "--stdin")) {
-			read_stdin = 1;
-			continue;
-		}
-		usage(diff_tree_usage);
-	}
-
-	if (!opt->diffopt.output_format)
-		opt->diffopt.output_format = DIFF_FORMAT_RAW;
-
-	/*
-	 * NOTE! We expect "a ^b" to be equal to "a..b", so we
-	 * reverse the order of the objects if the second one
-	 * is marked UNINTERESTING.
-	 */
-	nr_sha1 = opt->pending.nr;
-	switch (nr_sha1) {
-	case 0:
-		if (!read_stdin)
-			usage(diff_tree_usage);
-		break;
-	case 1:
-		tree1 = opt->pending.objects[0].item;
-		diff_tree_commit_sha1(tree1->sha1);
-		break;
-	case 2:
-		tree1 = opt->pending.objects[0].item;
-		tree2 = opt->pending.objects[1].item;
-		if (tree2->flags & UNINTERESTING) {
-			struct object *tmp = tree2;
-			tree2 = tree1;
-			tree1 = tmp;
-		}
-		diff_tree_sha1(tree1->sha1,
-			       tree2->sha1,
-			       "", &opt->diffopt);
-		log_tree_diff_flush(opt);
-		break;
-	}
-
-	if (!read_stdin)
-		return 0;
-
-	if (opt->diffopt.detect_rename)
-		opt->diffopt.setup |= (DIFF_SETUP_USE_SIZE_CACHE |
-				       DIFF_SETUP_USE_CACHE);
-	while (fgets(line, sizeof(line), stdin)) {
-		unsigned char sha1[20];
-
-		if (get_sha1_hex(line, sha1)) {
-			fputs(line, stdout);
-			fflush(stdout);
-		}
-		else
-			diff_tree_stdin(line);
-	}
-	return 0;
-}