From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on dcvr.yhbt.net X-Spam-Level: X-Spam-ASN: AS31976 209.132.180.0/23 X-Spam-Status: No, score=-6.4 required=3.0 tests=AWL,BAYES_00, HEADER_FROM_DIFFERENT_DOMAINS,RCVD_IN_DNSWL_HI,RP_MATCHES_RCVD shortcircuit=no autolearn=ham autolearn_force=no version=3.4.0 Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by dcvr.yhbt.net (Postfix) with ESMTP id 9840E1FCA5 for ; Sun, 1 Jan 2017 19:20:22 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S932365AbdAATTi (ORCPT ); Sun, 1 Jan 2017 14:19:38 -0500 Received: from castro.crustytoothpaste.net ([75.10.60.170]:53808 "EHLO castro.crustytoothpaste.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S932342AbdAATTh (ORCPT ); Sun, 1 Jan 2017 14:19:37 -0500 Received: from genre.crustytoothpaste.net (unknown [173.243.43.210]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by castro.crustytoothpaste.net (Postfix) with ESMTPSA id C8A25280AE; Sun, 1 Jan 2017 19:19:35 +0000 (UTC) From: "brian m. carlson" To: git@vger.kernel.org Cc: Jeff King , Michael Haggerty Subject: [PATCH 02/17] builtin/diff-tree: convert to struct object_id Date: Sun, 1 Jan 2017 19:18:32 +0000 Message-Id: <20170101191847.564741-3-sandals@crustytoothpaste.net> X-Mailer: git-send-email 2.11.0 In-Reply-To: <20170101191847.564741-1-sandals@crustytoothpaste.net> References: <20170101191847.564741-1-sandals@crustytoothpaste.net> Sender: git-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: git@vger.kernel.org Convert most leaf functions to struct object_id. Rewrite several hardcoded numbers in terms of GIT_SHA1_HEXSZ, using an intermediate variable where that makes sense. Signed-off-by: brian m. carlson --- builtin/diff-tree.c | 38 ++++++++++++++++++++------------------ 1 file changed, 20 insertions(+), 18 deletions(-) diff --git a/builtin/diff-tree.c b/builtin/diff-tree.c index 806dd7a88..516860e4f 100644 --- a/builtin/diff-tree.c +++ b/builtin/diff-tree.c @@ -7,9 +7,9 @@ static struct rev_info log_tree_opt; -static int diff_tree_commit_sha1(const unsigned char *sha1) +static int diff_tree_commit_sha1(const struct object_id *oid) { - struct commit *commit = lookup_commit_reference(sha1); + struct commit *commit = lookup_commit_reference(oid->hash); if (!commit) return -1; return log_tree_commit(&log_tree_opt, commit); @@ -18,22 +18,22 @@ static int diff_tree_commit_sha1(const unsigned char *sha1) /* Diff one or more commits. */ static int stdin_diff_commit(struct commit *commit, char *line, int len) { - unsigned char sha1[20]; - if (isspace(line[40]) && !get_sha1_hex(line+41, sha1)) { + struct object_id oid; + if (isspace(line[GIT_SHA1_HEXSZ]) && !get_oid_hex(line+GIT_SHA1_HEXSZ+1, &oid)) { /* Graft the fake parents locally to the commit */ - int pos = 41; + int pos = GIT_SHA1_HEXSZ + 1; struct commit_list **pptr; /* Free the real parent list */ free_commit_list(commit->parents); commit->parents = NULL; pptr = &(commit->parents); - while (line[pos] && !get_sha1_hex(line + pos, sha1)) { - struct commit *parent = lookup_commit(sha1); + while (line[pos] && !get_oid_hex(line + pos, &oid)) { + struct commit *parent = lookup_commit(oid.hash); if (parent) { pptr = &commit_list_insert(parent, pptr)->next; } - pos += 41; + pos += GIT_SHA1_HEXSZ + 1; } } return log_tree_commit(&log_tree_opt, commit); @@ -42,11 +42,13 @@ static int stdin_diff_commit(struct commit *commit, char *line, int len) /* Diff two trees. */ static int stdin_diff_trees(struct tree *tree1, char *line, int len) { - unsigned char sha1[20]; + struct object_id oid; struct tree *tree2; - if (len != 82 || !isspace(line[40]) || get_sha1_hex(line + 41, sha1)) + const int chunksz = GIT_SHA1_HEXSZ + 1; + if (len != 2 * chunksz || !isspace(line[chunksz-1]) || + get_sha1_hex(line + chunksz, oid.hash)) return error("Need exactly two trees, separated by a space"); - tree2 = lookup_tree(sha1); + tree2 = lookup_tree(oid.hash); if (!tree2 || parse_tree(tree2)) return -1; printf("%s %s\n", oid_to_hex(&tree1->object.oid), @@ -60,15 +62,15 @@ static int stdin_diff_trees(struct tree *tree1, char *line, int len) static int diff_tree_stdin(char *line) { int len = strlen(line); - unsigned char sha1[20]; + struct object_id oid; struct object *obj; if (!len || line[len-1] != '\n') return -1; line[len-1] = 0; - if (get_sha1_hex(line, sha1)) + if (get_oid_hex(line, &oid)) return -1; - obj = parse_object(sha1); + obj = parse_object(oid.hash); if (!obj) return -1; if (obj->type == OBJ_COMMIT) @@ -76,7 +78,7 @@ static int diff_tree_stdin(char *line) if (obj->type == OBJ_TREE) return stdin_diff_trees((struct tree *)obj, line, len); error("Object %s is a %s, not a commit or tree", - sha1_to_hex(sha1), typename(obj->type)); + oid_to_hex(&oid), typename(obj->type)); return -1; } @@ -141,7 +143,7 @@ int cmd_diff_tree(int argc, const char **argv, const char *prefix) break; case 1: tree1 = opt->pending.objects[0].item; - diff_tree_commit_sha1(tree1->oid.hash); + diff_tree_commit_sha1(&tree1->oid); break; case 2: tree1 = opt->pending.objects[0].item; @@ -166,9 +168,9 @@ int cmd_diff_tree(int argc, const char **argv, const char *prefix) opt->diffopt.setup |= (DIFF_SETUP_USE_SIZE_CACHE | DIFF_SETUP_USE_CACHE); while (fgets(line, sizeof(line), stdin)) { - unsigned char sha1[20]; + struct object_id oid; - if (get_sha1_hex(line, sha1)) { + if (get_oid_hex(line, &oid)) { fputs(line, stdout); fflush(stdout); } -- 2.11.0