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4727f64003
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>
129 lines
4 KiB
Bash
129 lines
4 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='More rename detection
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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. So we say you
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# copy-and-edit one, and rename-and-edit the other. We do not say
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# anything about rezrov.
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GIT_DIFF_OPTS=--unified=0 git-diff-cache -M -p $tree >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 rename/copy detection (#1)' \
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'compare_diff_patch current expected'
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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. So we say you
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# edited one, and copy-and-edit the other. We do not say
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# anything about rezrov.
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GIT_DIFF_OPTS=--unified=0 git-diff-cache -C -p $tree >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 rename/copy detection (#2)' \
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'compare_diff_patch current expected'
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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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# tree has COPYING and rezrov. work tree has COPYING and COPYING.1,
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# but COPYING is not edited. We say you copy-and-edit COPYING.1; this
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# is only possible because -C mode now reports the unmodified file to
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# the diff-core. Unchanged rezrov, although being fed to
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# git-diff-cache as well, should not be mentioned.
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GIT_DIFF_OPTS=--unified=0 \
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git-diff-cache -C --find-copies-harder -p $tree >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 rename/copy detection (#3)' \
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'compare_diff_patch current expected'
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test_done
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