d79d9e1e71ec38b4a82f1bf36dbbff5c3247a4d4
1#!/bin/sh
2#
3# Copyright (c) 2005 Junio C Hamano
4#
5
6test_description='Break and then rename
7
8We have two very different files, file0 and file1, registered in a tree.
9
10We update file1 so drastically that it is more similar to file0, and
11then remove file0. With -B, changes to file1 should be broken into
12separate delete and create, resulting in removal of file0, removal of
13original file1 and creation of completely rewritten file1.
14
15Further, with -B and -M together, these three modifications should
16turn into rename-edit of file0 into file1.
17
18Starting from the same two files in the tree, we swap file0 and file1.
19With -B, this should be detected as two complete rewrites, resulting in
20four changes in total.
21
22Further, with -B and -M together, these should turn into two renames.
23'
24. ./test-lib.sh
25. "$TEST_DIRECTORY"/diff-lib.sh ;# test-lib chdir's into trash
26
27test_expect_success \
28 setup \
29 'cat "$TEST_DIRECTORY"/../README >file0 &&
30 cat "$TEST_DIRECTORY"/../COPYING >file1 &&
31 git update-index --add file0 file1 &&
32 tree=$(git write-tree) &&
33 echo "$tree"'
34
35test_expect_success \
36 'change file1 with copy-edit of file0 and remove file0' \
37 'sed -e "s/git/GIT/" file0 >file1 &&
38 rm -f file0 &&
39 git update-index --remove file0 file1'
40
41test_expect_success \
42 'run diff with -B' \
43 'git diff-index -B --cached "$tree" >current'
44
45cat >expected <<\EOF
46:100644 000000 f5deac7be59e7eeab8657fd9ae706fd6a57daed2 0000000000000000000000000000000000000000 D file0
47:100644 100644 6ff87c4664981e4397625791c8ea3bbb5f2279a3 11e331465a89c394dc25c780de230043750c1ec8 M100 file1
48EOF
49
50test_expect_success \
51 'validate result of -B (#1)' \
52 'compare_diff_raw expected current'
53
54test_expect_success \
55 'run diff with -B and -M' \
56 'git diff-index -B -M "$tree" >current'
57
58cat >expected <<\EOF
59:100644 100644 f5deac7be59e7eeab8657fd9ae706fd6a57daed2 08bb2fb671deff4c03a4d4a0a1315dff98d5732c R100 file0 file1
60EOF
61
62test_expect_success \
63 'validate result of -B -M (#2)' \
64 'compare_diff_raw expected current'
65
66test_expect_success \
67 'swap file0 and file1' \
68 'rm -f file0 file1 &&
69 git read-tree -m $tree &&
70 git checkout-index -f -u -a &&
71 mv file0 tmp &&
72 mv file1 file0 &&
73 mv tmp file1 &&
74 git update-index file0 file1'
75
76test_expect_success \
77 'run diff with -B' \
78 'git diff-index -B "$tree" >current'
79
80cat >expected <<\EOF
81:100644 100644 f5deac7be59e7eeab8657fd9ae706fd6a57daed2 6ff87c4664981e4397625791c8ea3bbb5f2279a3 M100 file0
82:100644 100644 6ff87c4664981e4397625791c8ea3bbb5f2279a3 f5deac7be59e7eeab8657fd9ae706fd6a57daed2 M100 file1
83EOF
84
85test_expect_success \
86 'validate result of -B (#3)' \
87 'compare_diff_raw expected current'
88
89test_expect_success \
90 'run diff with -B and -M' \
91 'git diff-index -B -M "$tree" >current'
92
93cat >expected <<\EOF
94:100644 100644 6ff87c4664981e4397625791c8ea3bbb5f2279a3 6ff87c4664981e4397625791c8ea3bbb5f2279a3 R100 file1 file0
95:100644 100644 f5deac7be59e7eeab8657fd9ae706fd6a57daed2 f5deac7be59e7eeab8657fd9ae706fd6a57daed2 R100 file0 file1
96EOF
97
98test_expect_success \
99 'validate result of -B -M (#4)' \
100 'compare_diff_raw expected current'
101
102test_expect_success SYMLINKS \
103 'make file0 into something completely different' \
104 'rm -f file0 &&
105 ln -s frotz file0 &&
106 git update-index file0 file1'
107
108test_expect_success \
109 'run diff with -B' \
110 'git diff-index -B "$tree" >current'
111
112cat >expected <<\EOF
113:100644 120000 f5deac7be59e7eeab8657fd9ae706fd6a57daed2 67be421f88824578857624f7b3dc75e99a8a1481 T file0
114:100644 100644 6ff87c4664981e4397625791c8ea3bbb5f2279a3 f5deac7be59e7eeab8657fd9ae706fd6a57daed2 M100 file1
115EOF
116
117test_expect_success SYMLINKS \
118 'validate result of -B (#5)' \
119 'compare_diff_raw expected current'
120
121test_expect_success \
122 'run diff with -B -M' \
123 'git diff-index -B -M "$tree" >current'
124
125# file0 changed from regular to symlink. file1 is very close to the preimage of file0.
126# because we break file0, file1 can become a rename of it.
127cat >expected <<\EOF
128:100644 120000 f5deac7be59e7eeab8657fd9ae706fd6a57daed2 67be421f88824578857624f7b3dc75e99a8a1481 T file0
129:100644 100644 6ff87c4664981e4397625791c8ea3bbb5f2279a3 f5deac7be59e7eeab8657fd9ae706fd6a57daed2 R file0 file1
130EOF
131
132test_expect_success SYMLINKS \
133 'validate result of -B -M (#6)' \
134 'compare_diff_raw expected current'
135
136test_expect_success \
137 'run diff with -M' \
138 'git diff-index -M "$tree" >current'
139
140# This should not mistake file0 as the copy source of new file1
141# due to type differences.
142cat >expected <<\EOF
143:100644 120000 f5deac7be59e7eeab8657fd9ae706fd6a57daed2 67be421f88824578857624f7b3dc75e99a8a1481 T file0
144:100644 100644 6ff87c4664981e4397625791c8ea3bbb5f2279a3 f5deac7be59e7eeab8657fd9ae706fd6a57daed2 M file1
145EOF
146
147test_expect_success SYMLINKS \
148 'validate result of -M (#7)' \
149 'compare_diff_raw expected current'
150
151test_expect_success \
152 'file1 edited to look like file0 and file0 rename-edited to file2' \
153 'rm -f file0 file1 &&
154 git read-tree -m $tree &&
155 git checkout-index -f -u -a &&
156 sed -e "s/git/GIT/" file0 >file1 &&
157 sed -e "s/git/GET/" file0 >file2 &&
158 rm -f file0 &&
159 git update-index --add --remove file0 file1 file2'
160
161test_expect_success \
162 'run diff with -B' \
163 'git diff-index -B "$tree" >current'
164
165cat >expected <<\EOF
166:100644 000000 f5deac7be59e7eeab8657fd9ae706fd6a57daed2 0000000000000000000000000000000000000000 D file0
167:100644 100644 6ff87c4664981e4397625791c8ea3bbb5f2279a3 08bb2fb671deff4c03a4d4a0a1315dff98d5732c M100 file1
168:000000 100644 0000000000000000000000000000000000000000 f5deac7be59e7eeab8657fd9ae706fd6a57daed2 A file2
169EOF
170
171test_expect_success \
172 'validate result of -B (#8)' \
173 'compare_diff_raw expected current'
174
175test_expect_success \
176 'run diff with -B -M' \
177 'git diff-index -B -M "$tree" >current'
178
179cat >expected <<\EOF
180:100644 100644 f5deac7be59e7eeab8657fd9ae706fd6a57daed2 08bb2fb671deff4c03a4d4a0a1315dff98d5732c C095 file0 file1
181:100644 100644 f5deac7be59e7eeab8657fd9ae706fd6a57daed2 59f832e5c8b3f7e486be15ad0cd3e95ba9af8998 R095 file0 file2
182EOF
183
184test_expect_success \
185 'validate result of -B -M (#9)' \
186 'compare_diff_raw expected current'
187
188test_done