57fe64a40d
This cleans up the way calls are made into the diff core from diff-tree family and diff-helper. Earlier, these programs had "if (generating_patch)" sprinkled all over the place, but those ugliness are gone and handled uniformly from the diff core, even when not generating patch format. This also allowed diff-cache and diff-files to acquire -R (reverse) option to generate diff in reverse. Users of diff-tree can swap two trees easily so I did not add -R there. [ Linus' note: I'll add -R to "diff-tree" too, since a "commit diff" doesn't have another tree to switch around: the other tree is always the parent(s) of the commit ] Also -M<digits-as-mantissa> suggestion made by Linus has been implemented. Documentation updates are also included. Signed-off-by: Junio C Hamano <junkio@cox.net> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
67 lines
1.0 KiB
Bash
67 lines
1.0 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='Test rename detection in diff engine.
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'
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. ./test-lib.sh
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echo >path0 'Line 1
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Line 2
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Line 3
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Line 4
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Line 5
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Line 6
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Line 7
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Line 8
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Line 9
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Line 10
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line 11
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Line 12
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Line 13
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Line 14
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Line 15
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'
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test_expect_success \
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'update-cache --add a file.' \
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'git-update-cache --add path0'
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test_expect_success \
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'write that tree.' \
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'tree=$(git-write-tree)'
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sed -e 's/line/Line/' <path0 >path1
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rm -f path0
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test_expect_success \
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'renamed and edited the file.' \
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'git-update-cache --add --remove path0 path1'
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test_expect_success \
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'git-diff-cache -p -M after rename and editing.' \
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'git-diff-cache -p -M $tree >current'
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cat >expected <<\EOF
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diff --git a/path0 b/path1
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rename old path0
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rename new path1
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--- a/path0
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+++ b/path1
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@@ -8,7 +8,7 @@ Line 7
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Line 8
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Line 9
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Line 10
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-line 11
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+Line 11
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Line 12
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Line 13
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Line 14
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EOF
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test_expect_success \
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'validate the output.' \
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'diff -I "rename similarity.*" >/dev/null current expected'
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test_done
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