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![Junio C Hamano](/assets/img/avatar_default.png)
Like diff-tree, this patch makes -C option for diff-* brothers to use only pre-image of modified files as rename/copy detection by default. Give --find-copies-harder to use unmodified files to find copies from as well. This also fixes "diff-files -C" problem earlier noticed by Linus. It was feeding the null sha1 even when the file in the work tree was known to match what is in the index file. This resulted in diff-files showing everything in the project. Signed-off-by: Junio C Hamano <junkio@cox.net> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
167 lines
5.3 KiB
Bash
167 lines
5.3 KiB
Bash
#!/bin/sh
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#
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# Copyright (c) 2005 Junio C Hamano
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#
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test_description='Same rename detection as t4003 but testing diff-raw.
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'
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. ./test-lib.sh
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. ../diff-lib.sh ;# test-lib chdir's into trash
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test_expect_success \
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'prepare reference tree' \
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'cat ../../COPYING >COPYING &&
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echo frotz >rezrov &&
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git-update-cache --add COPYING rezrov &&
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tree=$(git-write-tree) &&
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echo $tree'
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test_expect_success \
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'prepare work tree' \
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'sed -e 's/HOWEVER/However/' <COPYING >COPYING.1 &&
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sed -e 's/GPL/G.P.L/g' <COPYING >COPYING.2 &&
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rm -f COPYING &&
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git-update-cache --add --remove COPYING COPYING.?'
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# tree has COPYING and rezrov. work tree has COPYING.1 and COPYING.2,
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# both are slightly edited, and unchanged rezrov. We say COPYING.1
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# and COPYING.2 are based on COPYING, and do not say anything about
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# rezrov.
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git-diff-cache -M $tree >current
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cat >expected <<\EOF
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:100644 100644 6ff87c4664981e4397625791c8ea3bbb5f2279a3 0603b3238a076dc6c8022aedc6648fa523a17178 C1234 COPYING COPYING.1
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:100644 100644 6ff87c4664981e4397625791c8ea3bbb5f2279a3 06c67961bbaed34a127f76d261f4c0bf73eda471 R1234 COPYING COPYING.2
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EOF
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test_expect_success \
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'validate output from rename/copy detection (#1)' \
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'compare_diff_raw current expected'
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# make sure diff-helper can grok it.
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mv expected diff-raw
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GIT_DIFF_OPTS=--unified=0 git-diff-helper <diff-raw >current
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cat >expected <<\EOF
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diff --git a/COPYING b/COPYING.1
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copy from COPYING
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copy to COPYING.1
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--- a/COPYING
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+++ b/COPYING.1
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@@ -6 +6 @@
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- HOWEVER, in order to allow a migration to GPLv3 if that seems like
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+ However, in order to allow a migration to GPLv3 if that seems like
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diff --git a/COPYING b/COPYING.2
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rename from COPYING
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rename to COPYING.2
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--- a/COPYING
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+++ b/COPYING.2
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@@ -2 +2 @@
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- Note that the only valid version of the GPL as far as this project
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+ Note that the only valid version of the G.P.L as far as this project
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@@ -6 +6 @@
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- HOWEVER, in order to allow a migration to GPLv3 if that seems like
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+ HOWEVER, in order to allow a migration to G.P.Lv3 if that seems like
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@@ -12 +12 @@
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- This file is licensed under the GPL v2, or a later version
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+ This file is licensed under the G.P.L v2, or a later version
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EOF
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test_expect_success \
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'validate output from diff-helper (#1)' \
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'compare_diff_patch current expected'
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################################################################
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test_expect_success \
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'prepare work tree again' \
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'mv COPYING.2 COPYING &&
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git-update-cache --add --remove COPYING COPYING.1 COPYING.2'
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# tree has COPYING and rezrov. work tree has COPYING and COPYING.1,
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# both are slightly edited, and unchanged rezrov. We say COPYING.1
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# is based on COPYING and COPYING is still there, and do not say anything
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# about rezrov.
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git-diff-cache -C $tree >current
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cat >expected <<\EOF
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:100644 100644 6ff87c4664981e4397625791c8ea3bbb5f2279a3 06c67961bbaed34a127f76d261f4c0bf73eda471 M COPYING
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:100644 100644 6ff87c4664981e4397625791c8ea3bbb5f2279a3 0603b3238a076dc6c8022aedc6648fa523a17178 C1234 COPYING COPYING.1
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EOF
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test_expect_success \
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'validate output from rename/copy detection (#2)' \
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'compare_diff_raw current expected'
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# make sure diff-helper can grok it.
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mv expected diff-raw
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GIT_DIFF_OPTS=--unified=0 git-diff-helper <diff-raw >current
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cat >expected <<\EOF
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diff --git a/COPYING b/COPYING
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--- a/COPYING
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+++ b/COPYING
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@@ -2 +2 @@
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- Note that the only valid version of the GPL as far as this project
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+ Note that the only valid version of the G.P.L as far as this project
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@@ -6 +6 @@
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- HOWEVER, in order to allow a migration to GPLv3 if that seems like
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+ HOWEVER, in order to allow a migration to G.P.Lv3 if that seems like
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@@ -12 +12 @@
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- This file is licensed under the GPL v2, or a later version
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+ This file is licensed under the G.P.L v2, or a later version
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diff --git a/COPYING b/COPYING.1
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copy from COPYING
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copy to COPYING.1
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--- a/COPYING
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+++ b/COPYING.1
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@@ -6 +6 @@
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- HOWEVER, in order to allow a migration to GPLv3 if that seems like
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+ However, in order to allow a migration to GPLv3 if that seems like
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EOF
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test_expect_success \
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'validate output from diff-helper (#2)' \
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'compare_diff_patch current expected'
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################################################################
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# tree has COPYING and rezrov. work tree has the same COPYING and
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# copy-edited COPYING.1, and unchanged rezrov. We should not say
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# anything about rezrov nor COPYING, since the revised again diff-raw
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# nows how to say Copy.
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test_expect_success \
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'prepare work tree once again' \
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'cat ../../COPYING >COPYING &&
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git-update-cache --add --remove COPYING COPYING.1'
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git-diff-cache -C --find-copies-harder $tree >current
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cat >expected <<\EOF
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:100644 100644 6ff87c4664981e4397625791c8ea3bbb5f2279a3 0603b3238a076dc6c8022aedc6648fa523a17178 C1234 COPYING COPYING.1
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EOF
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test_expect_success \
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'validate output from rename/copy detection (#3)' \
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'compare_diff_raw current expected'
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# make sure diff-helper can grok it.
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mv expected diff-raw
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GIT_DIFF_OPTS=--unified=0 git-diff-helper <diff-raw >current
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cat >expected <<\EOF
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diff --git a/COPYING b/COPYING.1
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copy from COPYING
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copy to COPYING.1
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--- a/COPYING
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+++ b/COPYING.1
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@@ -6 +6 @@
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- HOWEVER, in order to allow a migration to GPLv3 if that seems like
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+ However, in order to allow a migration to GPLv3 if that seems like
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EOF
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test_expect_success \
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'validate output from diff-helper (#3)' \
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'compare_diff_patch current expected'
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test_done
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