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1#!/bin/sh
2#
3# Copyright (c) 2005 Junio C Hamano
4#
5
5be60078 6test_description='git apply in reverse
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7
8'
9
10. ./test-lib.sh
11
12test_expect_success setup '
13
14 for i in a b c d e f g h i j k l m n; do echo $i; done >file1 &&
94221d22 15 perl -pe "y/ijk/\\000\\001\\002/" <file1 >file2 &&
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16
17 git add file1 file2 &&
18 git commit -m initial &&
19 git tag initial &&
20
21 for i in a b c g h i J K L m o n p q; do echo $i; done >file1 &&
94221d22 22 perl -pe "y/mon/\\000\\001\\002/" <file1 >file2 &&
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23
24 git commit -a -m second &&
2cda1a21 25 git tag second &&
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2cda1a21 27 git diff --binary initial second >patch
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28
29'
30
31test_expect_success 'apply in forward' '
32
991a9c3a 33 T0=$(git rev-parse "second^{tree}") &&
2cda1a21 34 git reset --hard initial &&
6a0ebe8c 35 git apply --index --binary patch &&
991a9c3a 36 T1=$(git write-tree) &&
2cda1a21 37 test "$T0" = "$T1"
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38'
39
40test_expect_success 'apply in reverse' '
41
2cda1a21 42 git reset --hard second &&
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43 git apply --reverse --binary --index patch &&
44 git diff >diff &&
ec21ac8c 45 test_must_be_empty diff
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46
47'
48
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49test_expect_success 'setup separate repository lacking postimage' '
50
925ceccf 51 git archive --format=tar --prefix=initial/ initial | $TAR xf - &&
2cda1a21 52 (
5c94f87e 53 cd initial && git init && git add .
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54 ) &&
55
925ceccf 56 git archive --format=tar --prefix=second/ second | $TAR xf - &&
2cda1a21 57 (
5c94f87e 58 cd second && git init && git add .
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59 )
60
61'
62
63test_expect_success 'apply in forward without postimage' '
64
991a9c3a 65 T0=$(git rev-parse "second^{tree}") &&
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66 (
67 cd initial &&
68 git apply --index --binary ../patch &&
991a9c3a 69 T1=$(git write-tree) &&
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70 test "$T0" = "$T1"
71 )
72'
73
74test_expect_success 'apply in reverse without postimage' '
75
991a9c3a 76 T0=$(git rev-parse "initial^{tree}") &&
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77 (
78 cd second &&
79 git apply --index --binary --reverse ../patch &&
991a9c3a 80 T1=$(git write-tree) &&
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81 test "$T0" = "$T1"
82 )
83'
84
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85test_expect_success 'reversing a whitespace introduction' '
86 sed "s/a/a /" < file1 > file1.new &&
87 mv file1.new file1 &&
88 git diff | git apply --reverse --whitespace=error
89'
90
6a0ebe8c 91test_done