t/t4103-apply-binary.sh

   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         perl -pe "y/x/\000/" <file1 >file3 &&
  30         cat file3 >file4 &&
  31         git add file2 &&
  32         perl -pe "y/\000/v/" <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 '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
 183 '
 184 test_done