t/t4020-diff-external.sh

   1 #!/bin/sh
   2
   3 test_description='external diff interface test'
   4
   5 . ./test-lib.sh
   6
   7 _z40=0000000000000000000000000000000000000000
   8
   9 test_expect_success setup '
  10
  11         test_tick &&
  12         echo initial >file &&
  13         git add file &&
  14         git commit -m initial &&
  15
  16         test_tick &&
  17         echo second >file &&
  18         git add file &&
  19         git commit -m second &&
  20
  21         test_tick &&
  22         echo third >file
  23 '
  24
  25 test_expect_success 'GIT_EXTERNAL_DIFF environment' '
  26
  27         GIT_EXTERNAL_DIFF=echo git diff | {
  28                 read path oldfile oldhex oldmode newfile newhex newmode &&
  29                 test "z$path" = zfile &&
  30                 test "z$oldmode" = z100644 &&
  31                 test "z$newhex" = "z$_z40" &&
  32                 test "z$newmode" = z100644 &&
  33                 oh=$(git rev-parse --verify HEAD:file) &&
  34                 test "z$oh" = "z$oldhex"
  35         }
  36
  37 '
  38
  39 test_expect_success 'GIT_EXTERNAL_DIFF environment should apply only to diff' '
  40
  41         GIT_EXTERNAL_DIFF=echo git log -p -1 HEAD |
  42         grep "^diff --git a/file b/file"
  43
  44 '
  45
  46 test_expect_success 'diff attribute' '
  47
  48         git config diff.parrot.command echo &&
  49
  50         echo >.gitattributes "file diff=parrot" &&
  51
  52         git diff | {
  53                 read path oldfile oldhex oldmode newfile newhex newmode &&
  54                 test "z$path" = zfile &&
  55                 test "z$oldmode" = z100644 &&
  56                 test "z$newhex" = "z$_z40" &&
  57                 test "z$newmode" = z100644 &&
  58                 oh=$(git rev-parse --verify HEAD:file) &&
  59                 test "z$oh" = "z$oldhex"
  60         }
  61
  62 '
  63
  64 test_expect_success 'diff attribute should apply only to diff' '
  65
  66         git log -p -1 HEAD |
  67         grep "^diff --git a/file b/file"
  68
  69 '
  70
  71 test_expect_success 'diff attribute' '
  72
  73         git config --unset diff.parrot.command &&
  74         git config diff.color.command echo &&
  75
  76         echo >.gitattributes "file diff=color" &&
  77
  78         git diff | {
  79                 read path oldfile oldhex oldmode newfile newhex newmode &&
  80                 test "z$path" = zfile &&
  81                 test "z$oldmode" = z100644 &&
  82                 test "z$newhex" = "z$_z40" &&
  83                 test "z$newmode" = z100644 &&
  84                 oh=$(git rev-parse --verify HEAD:file) &&
  85                 test "z$oh" = "z$oldhex"
  86         }
  87
  88 '
  89
  90 test_expect_success 'diff attribute should apply only to diff' '
  91
  92         git log -p -1 HEAD |
  93         grep "^diff --git a/file b/file"
  94
  95 '
  96
  97 test_expect_success 'no diff with -diff' '
  98         echo >.gitattributes "file -diff" &&
  99         git diff | grep Binary
 100 '
 101
 102 echo NULZbetweenZwords | tr Z '\000' > file
 103
 104 test_expect_success 'force diff with "diff"' '
 105         echo >.gitattributes "file diff" &&
 106         git diff | grep -a second
 107 '
 108
 109 test_done