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=-3.8 required=3.0 tests=AWL,BAYES_00, HEADER_FROM_DIFFERENT_DOMAINS,RCVD_IN_DNSWL_HI,RCVD_IN_MSPIKE_H3, RCVD_IN_MSPIKE_WL,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 E265D2021E for ; Fri, 19 May 2017 12:57:49 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1754977AbdESM5o (ORCPT ); Fri, 19 May 2017 08:57:44 -0400 Received: from cloud.peff.net ([104.130.231.41]:54857 "EHLO cloud.peff.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1754936AbdESM5f (ORCPT ); Fri, 19 May 2017 08:57:35 -0400 Received: (qmail 2977 invoked by uid 109); 19 May 2017 12:57:32 -0000 Received: from Unknown (HELO peff.net) (10.0.1.2) by cloud.peff.net (qpsmtpd/0.84) with SMTP; Fri, 19 May 2017 12:57:32 +0000 Received: (qmail 27901 invoked by uid 111); 19 May 2017 12:58:06 -0000 Received: from sigill.intra.peff.net (HELO sigill.intra.peff.net) (10.0.0.7) by peff.net (qpsmtpd/0.84) with SMTP; Fri, 19 May 2017 08:58:06 -0400 Received: by sigill.intra.peff.net (sSMTP sendmail emulation); Fri, 19 May 2017 08:57:30 -0400 Date: Fri, 19 May 2017 08:57:30 -0400 From: Jeff King To: Junio C Hamano Cc: Johannes Schindelin , git@vger.kernel.org, =?utf-8?B?Tmd1eeG7hW4gVGjDoWkgTmfhu41j?= Duy Subject: [PATCH 12/15] diff: pass whole pending entry in blobinfo Message-ID: <20170519125730.yakprrok7nom3kjh@sigill.intra.peff.net> References: <20170519124651.4q7waz75rmzfopgn@sigill.intra.peff.net> MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Disposition: inline In-Reply-To: <20170519124651.4q7waz75rmzfopgn@sigill.intra.peff.net> Sender: git-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: git@vger.kernel.org When diffing blobs directly, git-diff picks the blobs out of the rev_info's pending array and copies the relevant bits to a custom "struct blobinfo". But the pending array entry already has all of this information (and more, which we'll use in future patches). Let's just pass the original entry instead. In practice, these two blobs are probably adjacent in the revs->pending array, and we could just pass the whole array. But the current code is careful to pick each blob out separately and put it into another array, so we'll continue to do so and make our own array-of-pointers. Signed-off-by: Jeff King --- I looked into just passing "blob_a" and "blob_b", instead of passing an array and letting the called functions decide how many elements should be in it. But I don't know if we would ever want to handle arbitrary numbers of blobs (e.g., n-way combined diffs). It would be a step backwards in that case, so I decided not to. builtin/diff.c | 38 +++++++++++++++----------------------- 1 file changed, 15 insertions(+), 23 deletions(-) diff --git a/builtin/diff.c b/builtin/diff.c index d184aafab..8b276ae57 100644 --- a/builtin/diff.c +++ b/builtin/diff.c @@ -20,12 +20,6 @@ #define DIFF_NO_INDEX_EXPLICIT 1 #define DIFF_NO_INDEX_IMPLICIT 2 -struct blobinfo { - struct object_id oid; - const char *name; - unsigned mode; -}; - static const char builtin_diff_usage[] = "git diff [] [ []] [--] [...]"; @@ -65,7 +59,7 @@ static void stuff_change(struct diff_options *opt, static int builtin_diff_b_f(struct rev_info *revs, int argc, const char **argv, - struct blobinfo *blob) + struct object_array_entry **blob) { /* Blob vs file in the working tree*/ struct stat st; @@ -84,12 +78,12 @@ static int builtin_diff_b_f(struct rev_info *revs, diff_set_mnemonic_prefix(&revs->diffopt, "o/", "w/"); - if (blob[0].mode == S_IFINVALID) - blob[0].mode = canon_mode(st.st_mode); + if (blob[0]->mode == S_IFINVALID) + blob[0]->mode = canon_mode(st.st_mode); stuff_change(&revs->diffopt, - blob[0].mode, canon_mode(st.st_mode), - &blob[0].oid, &null_oid, + blob[0]->mode, canon_mode(st.st_mode), + &blob[0]->item->oid, &null_oid, 1, 0, path, path); diffcore_std(&revs->diffopt); @@ -99,24 +93,24 @@ static int builtin_diff_b_f(struct rev_info *revs, static int builtin_diff_blobs(struct rev_info *revs, int argc, const char **argv, - struct blobinfo *blob) + struct object_array_entry **blob) { unsigned mode = canon_mode(S_IFREG | 0644); if (argc > 1) usage(builtin_diff_usage); - if (blob[0].mode == S_IFINVALID) - blob[0].mode = mode; + if (blob[0]->mode == S_IFINVALID) + blob[0]->mode = mode; - if (blob[1].mode == S_IFINVALID) - blob[1].mode = mode; + if (blob[1]->mode == S_IFINVALID) + blob[1]->mode = mode; stuff_change(&revs->diffopt, - blob[0].mode, blob[1].mode, - &blob[0].oid, &blob[1].oid, + blob[0]->mode, blob[1]->mode, + &blob[0]->item->oid, &blob[1]->item->oid, 1, 1, - blob[0].name, blob[1].name); + blob[0]->name, blob[1]->name); diffcore_std(&revs->diffopt); diff_flush(&revs->diffopt); return 0; @@ -259,7 +253,7 @@ int cmd_diff(int argc, const char **argv, const char *prefix) struct rev_info rev; struct object_array ent = OBJECT_ARRAY_INIT; int blobs = 0, paths = 0; - struct blobinfo blob[2]; + struct object_array_entry *blob[2]; int nongit = 0, no_index = 0; int result = 0; @@ -408,9 +402,7 @@ int cmd_diff(int argc, const char **argv, const char *prefix) } else if (obj->type == OBJ_BLOB) { if (2 <= blobs) die(_("more than two blobs given: '%s'"), name); - hashcpy(blob[blobs].oid.hash, obj->oid.hash); - blob[blobs].name = name; - blob[blobs].mode = entry->mode; + blob[blobs] = entry; blobs++; } else { -- 2.13.0.219.g63f6bc368