@leroysheep / rag-system
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1 #!/bin/sh
2 #
3 # Copyright (c) 2005 Junio C Hamano
4 #
5
6 test_description='git apply handling binary patches
7
8 '
9 GIT_TEST_DEFAULT_INITIAL_BRANCH_NAME=main
10 export GIT_TEST_DEFAULT_INITIAL_BRANCH_NAME
11
12 . ./test-lib.sh
13
14 test_expect_success 'setup' '
15 cat >file1 <<-\EOF &&
16 A quick brown fox jumps over the lazy dog.
17 A tiny little penguin runs around in circles.
18 There is a flag with Linux written on it.
19 A slow black-and-white panda just sits there,
20 munching on his bamboo.
21 EOF
22 cat file1 >file2 &&
23 cat file1 >file4 &&
24
25 git update-index --add --remove file1 file2 file4 &&
26 git commit -m "Initial Version" 2>/dev/null &&
27
28 git checkout -b binary &&
29 tr "x" "\000" <file1 >file3 &&
30 cat file3 >file4 &&
31 git add file2 &&
32 tr "y" "\000" <file3 >file1 &&
33 rm -f file2 &&
34 git update-index --add --remove file1 file2 file3 file4 &&
35 git commit -m "Second Version" &&
36
37 git diff-tree -p main binary >B.diff &&
38 git diff-tree -p -C main binary >C.diff &&
39
40 git diff-tree -p --binary main binary >BF.diff &&
41 git diff-tree -p --binary -C main binary >CF.diff &&
42
43 git diff-tree -p --full-index main binary >B-index.diff &&
44 git diff-tree -p -C --full-index main binary >C-index.diff &&
45
46 git diff-tree -p --binary --no-prefix main binary -- file3 >B0.diff &&
47
48 git init other-repo &&
49 (
50 cd other-repo &&
51 git fetch .. main &&
52 git reset --hard FETCH_HEAD
53 )
54 '
55
56 test_expect_success 'stat binary diff -- should not fail.' \
57 'git checkout main &&
58 git apply --stat --summary B.diff'
59
60 test_expect_success 'stat binary -p0 diff -- should not fail.' '
61 git checkout main &&
62 git apply --stat -p0 B0.diff
63 '
64
65 test_expect_success 'stat binary diff (copy) -- should not fail.' \
66 'git checkout main &&
67 git apply --stat --summary C.diff'
68
69 test_expect_success 'check binary diff -- should fail.' \
70 'git checkout main &&
71 test_must_fail git apply --check B.diff'
72
73 test_expect_success 'check binary diff (copy) -- should fail.' \
74 'git checkout main &&
75 test_must_fail git apply --check C.diff'
76
77 test_expect_success \
78 'check incomplete binary diff with replacement -- should fail.' '
79 git checkout main &&
80 test_must_fail git apply --check --allow-binary-replacement B.diff
81 '
82
83 test_expect_success \
84 'check incomplete binary diff with replacement (copy) -- should fail.' '
85 git checkout main &&
86 test_must_fail git apply --check --allow-binary-replacement C.diff
87 '
88
89 test_expect_success 'check binary diff with replacement.' \
90 'git checkout main &&
91 git apply --check --allow-binary-replacement BF.diff'
92
93 test_expect_success 'check binary diff with replacement (copy).' \
94 'git checkout main &&
95 git apply --check --allow-binary-replacement CF.diff'
96
97 # Now we start applying them.
98
99 do_reset () {
100 rm -f file? &&
101 git reset --hard &&
102 git checkout -f main
103 }
104
105 test_expect_success 'apply binary diff -- should fail.' \
106 'do_reset &&
107 test_must_fail git apply B.diff'
108
109 test_expect_success 'apply binary diff -- should fail.' \
110 'do_reset &&
111 test_must_fail git apply --index B.diff'
112
113 test_expect_success 'apply binary diff (copy) -- should fail.' \
114 'do_reset &&
115 test_must_fail git apply C.diff'
116
117 test_expect_success 'apply binary diff (copy) -- should fail.' \
118 'do_reset &&
119 test_must_fail git apply --index C.diff'
120
121 test_expect_success 'apply binary diff with full-index' '
122 do_reset &&
123 git apply B-index.diff
124 '
125
126 test_expect_success 'apply binary diff with full-index (copy)' '
127 do_reset &&
128 git apply C-index.diff
129 '
130
131 test_expect_success 'apply full-index binary diff in new repo' '
132 (cd other-repo &&
133 do_reset &&
134 test_must_fail git apply ../B-index.diff)
135 '
136
137 test_expect_success 'apply binary diff without replacement.' \
138 'do_reset &&
139 git apply BF.diff'
140
141 test_expect_success 'apply binary diff without replacement (copy).' \
142 'do_reset &&
143 git apply CF.diff'
144
145 test_expect_success 'apply binary diff.' \
146 'do_reset &&
147 git apply --allow-binary-replacement --index BF.diff &&
148 test -z "$(git diff --name-status binary)"'
149
150 test_expect_success 'apply binary diff (copy).' \
151 'do_reset &&
152 git apply --allow-binary-replacement --index CF.diff &&
153 test -z "$(git diff --name-status binary)"'
154
155 test_expect_success 'apply binary -p0 diff' '
156 do_reset &&
157 git apply -p0 --index B0.diff &&
158 test -z "$(git diff --name-status binary -- file3)"
159 '
160
161 test_expect_success PERL_TEST_HELPERS 'reject truncated binary diff' '
162 do_reset &&
163
164 # this length is calculated to get us very close to
165 # the 8192-byte strbuf we will use to read in the patch.
166 test-tool genrandom foo 6205 >file1 &&
167 git diff --binary >patch &&
168
169 # truncate the patch at the second "literal" line,
170 # but exclude the trailing newline. We must use perl
171 # for this, since tools like "sed" cannot reliably
172 # produce output without the trailing newline.
173 perl -pe "
174 if (/^literal/ && \$count++ >= 1) {
175 chomp;
176 print;
177 exit 0;
178 }
179 " <patch >patch.trunc &&
180
181 do_reset &&
182 test_must_fail git apply patch.trunc 2>err &&
183 line=$(awk "END { print NR + 1 }" patch.trunc) &&
184 grep "error: corrupt binary patch at patch.trunc:$line: " err
185 '
186
187 test_expect_success 'reject unrecognized binary diff' '
188 cat >patch.bad <<-\EOF &&
189 diff --git a/f b/f
190 new file mode 100644
191 index 0000000..7898192
192 GIT binary patch
193 bogus
194 EOF
195 test_must_fail git apply patch.bad 2>err &&
196 cat >expect <<-\EOF &&
197 error: unrecognized binary patch at patch.bad:4
198 error: No valid patches in input (allow with "--allow-empty")
199 EOF
200 test_cmp expect err
201 '
202 test_done