Merge branch 'sg/t5516-fixes'
[git] / t / t0028-working-tree-encoding.sh
1 #!/bin/sh
2
3 test_description='working-tree-encoding conversion via gitattributes'
4
5 . ./test-lib.sh
6
7 GIT_TRACE_WORKING_TREE_ENCODING=1 && export GIT_TRACE_WORKING_TREE_ENCODING
8
9 test_expect_success 'setup test files' '
10         git config core.eol lf &&
11
12         text="hallo there!\ncan you read me?" &&
13         echo "*.utf16 text working-tree-encoding=utf-16" >.gitattributes &&
14         printf "$text" >test.utf8.raw &&
15         printf "$text" | iconv -f UTF-8 -t UTF-16 >test.utf16.raw &&
16         printf "$text" | iconv -f UTF-8 -t UTF-32 >test.utf32.raw &&
17
18         # Line ending tests
19         printf "one\ntwo\nthree\n" >lf.utf8.raw &&
20         printf "one\r\ntwo\r\nthree\r\n" >crlf.utf8.raw &&
21
22         # BOM tests
23         printf "\0a\0b\0c"                         >nobom.utf16be.raw &&
24         printf "a\0b\0c\0"                         >nobom.utf16le.raw &&
25         printf "\376\777\0a\0b\0c"                 >bebom.utf16be.raw &&
26         printf "\777\376a\0b\0c\0"                 >lebom.utf16le.raw &&
27         printf "\0\0\0a\0\0\0b\0\0\0c"             >nobom.utf32be.raw &&
28         printf "a\0\0\0b\0\0\0c\0\0\0"             >nobom.utf32le.raw &&
29         printf "\0\0\376\777\0\0\0a\0\0\0b\0\0\0c" >bebom.utf32be.raw &&
30         printf "\777\376\0\0a\0\0\0b\0\0\0c\0\0\0" >lebom.utf32le.raw &&
31
32         # Add only UTF-16 file, we will add the UTF-32 file later
33         cp test.utf16.raw test.utf16 &&
34         cp test.utf32.raw test.utf32 &&
35         git add .gitattributes test.utf16 &&
36         git commit -m initial
37 '
38
39 test_expect_success 'ensure UTF-8 is stored in Git' '
40         test_when_finished "rm -f test.utf16.git" &&
41
42         git cat-file -p :test.utf16 >test.utf16.git &&
43         test_cmp_bin test.utf8.raw test.utf16.git
44 '
45
46 test_expect_success 're-encode to UTF-16 on checkout' '
47         test_when_finished "rm -f test.utf16.raw" &&
48
49         rm test.utf16 &&
50         git checkout test.utf16 &&
51         test_cmp_bin test.utf16.raw test.utf16
52 '
53
54 test_expect_success 'check $GIT_DIR/info/attributes support' '
55         test_when_finished "rm -f test.utf32.git" &&
56         test_when_finished "git reset --hard HEAD" &&
57
58         echo "*.utf32 text working-tree-encoding=utf-32" >.git/info/attributes &&
59         git add test.utf32 &&
60
61         git cat-file -p :test.utf32 >test.utf32.git &&
62         test_cmp_bin test.utf8.raw test.utf32.git
63 '
64
65 for i in 16 32
66 do
67         test_expect_success "check prohibited UTF-${i} BOM" '
68                 test_when_finished "git reset --hard HEAD" &&
69
70                 echo "*.utf${i}be text working-tree-encoding=utf-${i}be" >>.gitattributes &&
71                 echo "*.utf${i}le text working-tree-encoding=utf-${i}LE" >>.gitattributes &&
72
73                 # Here we add a UTF-16 (resp. UTF-32) files with BOM (big/little-endian)
74                 # but we tell Git to treat it as UTF-16BE/UTF-16LE (resp. UTF-32).
75                 # In these cases the BOM is prohibited.
76                 cp bebom.utf${i}be.raw bebom.utf${i}be &&
77                 test_must_fail git add bebom.utf${i}be 2>err.out &&
78                 test_i18ngrep "fatal: BOM is prohibited .* utf-${i}be" err.out &&
79                 test_i18ngrep "use UTF-${i} as working-tree-encoding" err.out &&
80
81                 cp lebom.utf${i}le.raw lebom.utf${i}be &&
82                 test_must_fail git add lebom.utf${i}be 2>err.out &&
83                 test_i18ngrep "fatal: BOM is prohibited .* utf-${i}be" err.out &&
84                 test_i18ngrep "use UTF-${i} as working-tree-encoding" err.out &&
85
86                 cp bebom.utf${i}be.raw bebom.utf${i}le &&
87                 test_must_fail git add bebom.utf${i}le 2>err.out &&
88                 test_i18ngrep "fatal: BOM is prohibited .* utf-${i}LE" err.out &&
89                 test_i18ngrep "use UTF-${i} as working-tree-encoding" err.out &&
90
91                 cp lebom.utf${i}le.raw lebom.utf${i}le &&
92                 test_must_fail git add lebom.utf${i}le 2>err.out &&
93                 test_i18ngrep "fatal: BOM is prohibited .* utf-${i}LE" err.out &&
94                 test_i18ngrep "use UTF-${i} as working-tree-encoding" err.out
95         '
96
97         test_expect_success "check required UTF-${i} BOM" '
98                 test_when_finished "git reset --hard HEAD" &&
99
100                 echo "*.utf${i} text working-tree-encoding=utf-${i}" >>.gitattributes &&
101
102                 cp nobom.utf${i}be.raw nobom.utf${i} &&
103                 test_must_fail git add nobom.utf${i} 2>err.out &&
104                 test_i18ngrep "fatal: BOM is required .* utf-${i}" err.out &&
105                 test_i18ngrep "use UTF-${i}BE or UTF-${i}LE" err.out &&
106
107                 cp nobom.utf${i}le.raw nobom.utf${i} &&
108                 test_must_fail git add nobom.utf${i} 2>err.out &&
109                 test_i18ngrep "fatal: BOM is required .* utf-${i}" err.out &&
110                 test_i18ngrep "use UTF-${i}BE or UTF-${i}LE" err.out
111         '
112
113         test_expect_success "eol conversion for UTF-${i} encoded files on checkout" '
114                 test_when_finished "rm -f crlf.utf${i}.raw lf.utf${i}.raw" &&
115                 test_when_finished "git reset --hard HEAD^" &&
116
117                 cat lf.utf8.raw | iconv -f UTF-8 -t UTF-${i} >lf.utf${i}.raw &&
118                 cat crlf.utf8.raw | iconv -f UTF-8 -t UTF-${i} >crlf.utf${i}.raw &&
119                 cp crlf.utf${i}.raw eol.utf${i} &&
120
121                 cat >expectIndexLF <<-EOF &&
122                         i/lf    w/-text attr/text               eol.utf${i}
123                 EOF
124
125                 git add eol.utf${i} &&
126                 git commit -m eol &&
127
128                 # UTF-${i} with CRLF (Windows line endings)
129                 rm eol.utf${i} &&
130                 git -c core.eol=crlf checkout eol.utf${i} &&
131                 test_cmp_bin crlf.utf${i}.raw eol.utf${i} &&
132
133                 # Although the file has CRLF in the working tree,
134                 # ensure LF in the index
135                 git ls-files --eol eol.utf${i} >actual &&
136                 test_cmp expectIndexLF actual &&
137
138                 # UTF-${i} with LF (Unix line endings)
139                 rm eol.utf${i} &&
140                 git -c core.eol=lf checkout eol.utf${i} &&
141                 test_cmp_bin lf.utf${i}.raw eol.utf${i} &&
142
143                 # The file LF in the working tree, ensure LF in the index
144                 git ls-files --eol eol.utf${i} >actual &&
145                 test_cmp expectIndexLF actual
146         '
147 done
148
149 test_expect_success 'check unsupported encodings' '
150         test_when_finished "git reset --hard HEAD" &&
151
152         echo "*.set text working-tree-encoding" >.gitattributes &&
153         printf "set" >t.set &&
154         test_must_fail git add t.set 2>err.out &&
155         test_i18ngrep "true/false are no valid working-tree-encodings" err.out &&
156
157         echo "*.unset text -working-tree-encoding" >.gitattributes &&
158         printf "unset" >t.unset &&
159         git add t.unset &&
160
161         echo "*.empty text working-tree-encoding=" >.gitattributes &&
162         printf "empty" >t.empty &&
163         git add t.empty &&
164
165         echo "*.garbage text working-tree-encoding=garbage" >.gitattributes &&
166         printf "garbage" >t.garbage &&
167         test_must_fail git add t.garbage 2>err.out &&
168         test_i18ngrep "failed to encode" err.out
169 '
170
171 test_expect_success 'error if encoding round trip is not the same during refresh' '
172         BEFORE_STATE=$(git rev-parse HEAD) &&
173         test_when_finished "git reset --hard $BEFORE_STATE" &&
174
175         # Add and commit a UTF-16 file but skip the "working-tree-encoding"
176         # filter. Consequently, the in-repo representation is UTF-16 and not
177         # UTF-8. This simulates a Git version that has no working tree encoding
178         # support.
179         echo "*.utf16le text working-tree-encoding=utf-16le" >.gitattributes &&
180         echo "hallo" >nonsense.utf16le &&
181         TEST_HASH=$(git hash-object --no-filters -w nonsense.utf16le) &&
182         git update-index --add --cacheinfo 100644 $TEST_HASH nonsense.utf16le &&
183         COMMIT=$(git commit-tree -p $(git rev-parse HEAD) -m "plain commit" $(git write-tree)) &&
184         git update-ref refs/heads/master $COMMIT &&
185
186         test_must_fail git checkout HEAD^ 2>err.out &&
187         test_i18ngrep "error: .* overwritten by checkout:" err.out
188 '
189
190 test_expect_success 'error if encoding garbage is already in Git' '
191         BEFORE_STATE=$(git rev-parse HEAD) &&
192         test_when_finished "git reset --hard $BEFORE_STATE" &&
193
194         # Skip the UTF-16 filter for the added file
195         # This simulates a Git version that has no checkoutEncoding support
196         cp nobom.utf16be.raw nonsense.utf16 &&
197         TEST_HASH=$(git hash-object --no-filters -w nonsense.utf16) &&
198         git update-index --add --cacheinfo 100644 $TEST_HASH nonsense.utf16 &&
199         COMMIT=$(git commit-tree -p $(git rev-parse HEAD) -m "plain commit" $(git write-tree)) &&
200         git update-ref refs/heads/master $COMMIT &&
201
202         git diff 2>err.out &&
203         test_i18ngrep "error: BOM is required" err.out
204 '
205
206 test_expect_success 'check roundtrip encoding' '
207         test_when_finished "rm -f roundtrip.shift roundtrip.utf16" &&
208         test_when_finished "git reset --hard HEAD" &&
209
210         text="hallo there!\nroundtrip test here!" &&
211         printf "$text" | iconv -f UTF-8 -t SHIFT-JIS >roundtrip.shift &&
212         printf "$text" | iconv -f UTF-8 -t UTF-16 >roundtrip.utf16 &&
213         echo "*.shift text working-tree-encoding=SHIFT-JIS" >>.gitattributes &&
214
215         # SHIFT-JIS encoded files are round-trip checked by default...
216         GIT_TRACE=1 git add .gitattributes roundtrip.shift 2>&1 |
217                 grep "Checking roundtrip encoding for SHIFT-JIS" &&
218         git reset &&
219
220         # ... unless we overwrite the Git config!
221         ! GIT_TRACE=1 git -c core.checkRoundtripEncoding=garbage \
222                 add .gitattributes roundtrip.shift 2>&1 |
223                 grep "Checking roundtrip encoding for SHIFT-JIS" &&
224         git reset &&
225
226         # UTF-16 encoded files should not be round-trip checked by default...
227         ! GIT_TRACE=1 git add roundtrip.utf16 2>&1 |
228                 grep "Checking roundtrip encoding for UTF-16" &&
229         git reset &&
230
231         # ... unless we tell Git to check it!
232         GIT_TRACE=1 git -c core.checkRoundtripEncoding="UTF-16, UTF-32" \
233                 add roundtrip.utf16 2>&1 |
234                 grep "Checking roundtrip encoding for utf-16" &&
235         git reset &&
236
237         # ... unless we tell Git to check it!
238         # (here we also check that the casing of the encoding is irrelevant)
239         GIT_TRACE=1 git -c core.checkRoundtripEncoding="UTF-32, utf-16" \
240                 add roundtrip.utf16 2>&1 |
241                 grep "Checking roundtrip encoding for utf-16" &&
242         git reset
243 '
244
245 test_done