From mboxrd@z Thu Jan 1 00:00:00 1970 From: Johan Herland Subject: [PATCH 1/3] --dirstat: Document shortcomings compared to --stat or regular diff Date: Fri, 8 Apr 2011 16:48:11 +0200 Message-ID: <201104081648.11842.johan@herland.net> References: <201104071549.37187.johan@herland.net> <201104081646.35750.johan@herland.net> Mime-Version: 1.0 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: 7bit Cc: git@vger.kernel.org, Linus Torvalds , johan@herland.net To: Junio C Hamano X-From: git-owner@vger.kernel.org Fri Apr 08 16:49:00 2011 Return-path: Envelope-to: gcvg-git-2@lo.gmane.org Received: from vger.kernel.org ([209.132.180.67]) by lo.gmane.org with esmtp (Exim 4.69) (envelope-from ) id 1Q8Czb-0005gd-Pw for gcvg-git-2@lo.gmane.org; Fri, 08 Apr 2011 16:49:00 +0200 Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752564Ab1DHOsz (ORCPT ); Fri, 8 Apr 2011 10:48:55 -0400 Received: from smtp.opera.com ([213.236.208.81]:44207 "EHLO smtp.opera.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1755385Ab1DHOsy (ORCPT ); Fri, 8 Apr 2011 10:48:54 -0400 Received: from johanh.eng.oslo.osa (pat-tdc.opera.com [213.236.208.22]) (authenticated bits=0) by smtp.opera.com (8.14.3/8.14.3/Debian-5+lenny1) with ESMTP id p38EmB8V007878 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-SHA bits=256 verify=NOT); Fri, 8 Apr 2011 14:48:12 GMT User-Agent: KMail/1.9.9 In-Reply-To: <201104081646.35750.johan@herland.net> Content-Disposition: inline Sender: git-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: git@vger.kernel.org Archived-At: Also add a testcase documenting the current behavior. Signed-off-by: Johan Herland --- Documentation/diff-options.txt | 5 +++ t/t4013-diff-various.sh | 27 +++++++++++++++---- t/t4013/diff.diff_--dirstat_initial_rearrange | 2 + ...tch_--stdout_--cover-letter_-n_initial..master^ | 2 +- t/t4013/diff.log_--decorate=full_--all | 6 ++++ t/t4013/diff.log_--decorate_--all | 6 ++++ 6 files changed, 41 insertions(+), 7 deletions(-) create mode 100644 t/t4013/diff.diff_--dirstat_initial_rearrange diff --git a/Documentation/diff-options.txt b/Documentation/diff-options.txt index c93124b..25e48c4 100644 --- a/Documentation/diff-options.txt +++ b/Documentation/diff-options.txt @@ -72,6 +72,11 @@ endif::git-format-patch[] a cut-off percent (3% by default) are not shown. The cut-off percent can be set with `--dirstat=`. Changes in a child directory are not counted for the parent directory, unless `--cumulative` is used. ++ +Note that `--dirstat` does not use the regular diff machinery to calculate +the changes (rather it is based on the rename detection machinery). Therefore, +`--dirstat` may skip some changes that `--stat` does not skip. For example, +rearranging the lines in a file will not be detected by `--dirstat`. --dirstat-by-file[=]:: Same as `--dirstat`, but counts changed files instead of lines. diff --git a/t/t4013-diff-various.sh b/t/t4013-diff-various.sh index 5daa0f2..8cc94ef 100755 --- a/t/t4013-diff-various.sh +++ b/t/t4013-diff-various.sh @@ -80,18 +80,31 @@ test_expect_success setup ' git config log.showroot false && git commit --amend && + + GIT_AUTHOR_DATE="2006-06-26 00:06:00 +0000" && + GIT_COMMITTER_DATE="2006-06-26 00:06:00 +0000" && + export GIT_AUTHOR_DATE GIT_COMMITTER_DATE && + git checkout -b rearrange initial && + for i in B A; do echo $i; done >dir/sub && + git add dir/sub && + git commit -m "Rearranged lines in dir/sub" && + git checkout master && + git show-branch ' : <<\EOF ! [initial] Initial * [master] Merge branch 'side' - ! [side] Side ---- - - [master] Merge branch 'side' - *+ [side] Side - * [master^] Second -+*+ [initial] Initial + ! [rearrange] Rearranged lines in dir/sub + ! [side] Side +---- + + [rearrange] Rearranged lines in dir/sub + - [master] Merge branch 'side' + * + [side] Side + * [master^] Third + * [master~2] Second ++*++ [initial] Initial EOF V=`git version | sed -e 's/^git version //' -e 's/\./\\./g'` @@ -287,6 +300,8 @@ diff --no-index --name-status -- dir2 dir diff --no-index dir dir3 diff master master^ side diff --dirstat master~1 master~2 +# --dirstat does NOT pick up changes that simply rearrange existing lines +diff --dirstat initial rearrange EOF test_expect_success 'log -S requires an argument' ' diff --git a/t/t4013/diff.diff_--dirstat_initial_rearrange b/t/t4013/diff.diff_--dirstat_initial_rearrange new file mode 100644 index 0000000..fb2e17d --- /dev/null +++ b/t/t4013/diff.diff_--dirstat_initial_rearrange @@ -0,0 +1,2 @@ +$ git diff --dirstat initial rearrange +$ diff --git a/t/t4013/diff.format-patch_--stdout_--cover-letter_-n_initial..master^ b/t/t4013/diff.format-patch_--stdout_--cover-letter_-n_initial..master^ index 1f0f9ad..3b4e113 100644 --- a/t/t4013/diff.format-patch_--stdout_--cover-letter_-n_initial..master^ +++ b/t/t4013/diff.format-patch_--stdout_--cover-letter_-n_initial..master^ @@ -1,7 +1,7 @@ $ git format-patch --stdout --cover-letter -n initial..master^ From 9a6d4949b6b76956d9d5e26f2791ec2ceff5fdc0 Mon Sep 17 00:00:00 2001 From: C O Mitter -Date: Mon, 26 Jun 2006 00:05:00 +0000 +Date: Mon, 26 Jun 2006 00:06:00 +0000 Subject: [DIFFERENT_PREFIX 0/2] *** SUBJECT HERE *** *** BLURB HERE *** diff --git a/t/t4013/diff.log_--decorate=full_--all b/t/t4013/diff.log_--decorate=full_--all index d155e0b..44d4525 100644 --- a/t/t4013/diff.log_--decorate=full_--all +++ b/t/t4013/diff.log_--decorate=full_--all @@ -1,4 +1,10 @@ $ git log --decorate=full --all +commit cd4e72fd96faed3f0ba949dc42967430374e2290 (refs/heads/rearrange) +Author: A U Thor +Date: Mon Jun 26 00:06:00 2006 +0000 + + Rearranged lines in dir/sub + commit 59d314ad6f356dd08601a4cd5e530381da3e3c64 (HEAD, refs/heads/master) Merge: 9a6d494 c7a2ab9 Author: A U Thor diff --git a/t/t4013/diff.log_--decorate_--all b/t/t4013/diff.log_--decorate_--all index fd7c3e6..27d3eab 100644 --- a/t/t4013/diff.log_--decorate_--all +++ b/t/t4013/diff.log_--decorate_--all @@ -1,4 +1,10 @@ $ git log --decorate --all +commit cd4e72fd96faed3f0ba949dc42967430374e2290 (rearrange) +Author: A U Thor +Date: Mon Jun 26 00:06:00 2006 +0000 + + Rearranged lines in dir/sub + commit 59d314ad6f356dd08601a4cd5e530381da3e3c64 (HEAD, master) Merge: 9a6d494 c7a2ab9 Author: A U Thor -- 1.7.5.rc1