Andrew's git - gitweb.git/blob - t/t0028-working-tree-encoding.sh

   1#!/bin/sh
   2
   3test_description='working-tree-encoding conversion via gitattributes'
   4
   5. ./test-lib.sh
   6
   7GIT_TRACE_WORKING_TREE_ENCODING=1 && export GIT_TRACE_WORKING_TREE_ENCODING
   8
   9test_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
  39test_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
  46test_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
  54test_expect_success 'check $GIT_DIR/info/attributes support' '
  55        test_when_finished "rm -f test.utf32.git" &&
  56        test_when_finished "git reset --hard HEAD" &&
  57
  58        echo "*.utf32 text working-tree-encoding=utf-32" >.git/info/attributes &&
  59        git add test.utf32 &&
  60
  61        git cat-file -p :test.utf32 >test.utf32.git &&
  62        test_cmp_bin test.utf8.raw test.utf32.git
  63'
  64
  65for i in 16 32
  66do
  67        test_expect_success "check prohibited UTF-${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        '
 147done
 148
 149test_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
 171test_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 $COMMIT &&
 185
 186        test_must_fail git checkout HEAD^ 2>err.out &&
 187        test_i18ngrep "error: .* overwritten by checkout:" err.out
 188'
 189
 190test_expect_success 'error if encoding garbage is already in Git' '
 191        BEFORE_STATE=$(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 $COMMIT &&
 201
 202        git diff 2>err.out &&
 203        test_i18ngrep "error: BOM is required" err.out
 204'
 205
 206test_lazy_prereq ICONV_SHIFT_JIS '
 207        iconv -f UTF-8 -t SHIFT-JIS </dev/null
 208'
 209
 210test_expect_success ICONV_SHIFT_JIS 'check roundtrip encoding' '
 211        test_when_finished "rm -f roundtrip.shift roundtrip.utf16" &&
 212        test_when_finished "git reset --hard HEAD" &&
 213
 214        text="hallo there!\nroundtrip test here!" &&
 215        printf "$text" | iconv -f UTF-8 -t SHIFT-JIS >roundtrip.shift &&
 216        printf "$text" | iconv -f UTF-8 -t UTF-16 >roundtrip.utf16 &&
 217        echo "*.shift text working-tree-encoding=SHIFT-JIS" >>.gitattributes &&
 218
 219        # SHIFT-JIS encoded files are round-trip checked by default...
 220        GIT_TRACE=1 git add .gitattributes roundtrip.shift 2>&1 |
 221                grep "Checking roundtrip encoding for SHIFT-JIS" &&
 222        git reset &&
 223
 224        # ... unless we overwrite the Git config!
 225        ! GIT_TRACE=1 git -c core.checkRoundtripEncoding=garbage \
 226                add .gitattributes roundtrip.shift 2>&1 |
 227                grep "Checking roundtrip encoding for SHIFT-JIS" &&
 228        git reset &&
 229
 230        # UTF-16 encoded files should not be round-trip checked by default...
 231        ! GIT_TRACE=1 git add roundtrip.utf16 2>&1 |
 232                grep "Checking roundtrip encoding for UTF-16" &&
 233        git reset &&
 234
 235        # ... unless we tell Git to check it!
 236        GIT_TRACE=1 git -c core.checkRoundtripEncoding="UTF-16, UTF-32" \
 237                add roundtrip.utf16 2>&1 |
 238                grep "Checking roundtrip encoding for utf-16" &&
 239        git reset &&
 240
 241        # ... unless we tell Git to check it!
 242        # (here we also check that the casing of the encoding is irrelevant)
 243        GIT_TRACE=1 git -c core.checkRoundtripEncoding="UTF-32, utf-16" \
 244                add roundtrip.utf16 2>&1 |
 245                grep "Checking roundtrip encoding for utf-16" &&
 246        git reset
 247'
 248
 249test_done