[PATCHv2 1/3] --dirstat: Describe non-obvious differences relative to --stat or regular diff
From: Johan Herland <hidden>
Date: 2016-06-15 22:51:01
Subsystem:
documentation, the rest · Maintainers:
Jonathan Corbet, Linus Torvalds
Also add a testcase documenting the current behavior. Improved-by: Junio C Hamano [off-list ref] Signed-off-by: Johan Herland <redacted> --- Documentation/diff-options.txt | 4 +++ 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, 40 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..23772d6 100644
--- a/Documentation/diff-options.txt
+++ b/Documentation/diff-options.txt@@ -72,6 +72,10 @@ endif::git-format-patch[] a cut-off percent (3% by default) are not shown. The cut-off percent can be set with `--dirstat=<limit>`. Changes in a child directory are not counted for the parent directory, unless `--cumulative` is used. ++ +Note that the `--dirstat` option computes the changes while ignoring +pure code movements within a file. In other words, rearranging lines +in a file is not counted as a change. --dirstat-by-file[=<limit>]:: 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..3b1b392 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 $i; done >dir/sub && + git add dir/sub && + git commit -m "Rearranged lines in dir/sub" && + git checkout master && + git show-branch ' : <<\EOF ! [initial] Initial * [master] Merge branch 'side' - ! [side] Side ---- - - [master] Merge branch 'side' - *+ [side] Side - * [master^] Second -+*+ [initial] Initial + ! [rearrange] Rearranged lines in dir/sub + ! [side] Side +---- + + [rearrange] Rearranged lines in dir/sub + - [master] Merge branch 'side' + * + [side] Side + * [master^] Third + * [master~2] Second ++*++ [initial] Initial EOF V=`git version | sed -e 's/^git version //' -e 's/\./\\./g'`
@@ -287,6 +300,8 @@ diff --no-index --name-status -- dir2 dir diff --no-index dir dir3 diff master master^ side diff --dirstat master~1 master~2 +# --dirstat doesn't notice changes that simply rearrange existing lines +diff --dirstat initial rearrange EOF test_expect_success 'log -S requires an argument' '
diff --git a/t/t4013/diff.diff_--dirstat_initial_rearrange b/t/t4013/diff.diff_--dirstat_initial_rearrange
new file mode 100644
index 0000000..fb2e17d
--- /dev/null
+++ b/t/t4013/diff.diff_--dirstat_initial_rearrange@@ -0,0 +1,2 @@ +$ 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 <committer@example.com> -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 <author@example.com> +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 <author@example.com>
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 <author@example.com> +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 <author@example.com>
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