t/t4042-diff-textconv-caching.sh

   1 #!/bin/sh
   2
   3 test_description='test textconv caching'
   4
   5 TEST_PASSES_SANITIZE_LEAK=true
   6 . ./test-lib.sh
   7
   8 cat >helper <<'EOF'
   9 #!/bin/sh
  10 sed 's/^/converted: /' "$@" >helper.out
  11 cat helper.out
  12 EOF
  13 chmod +x helper
  14
  15 test_expect_success 'setup' '
  16         echo foo content 1 >foo.bin &&
  17         echo bar content 1 >bar.bin &&
  18         git add . &&
  19         git commit -m one &&
  20         foo1=$(git rev-parse --short HEAD:foo.bin) &&
  21         bar1=$(git rev-parse --short HEAD:bar.bin) &&
  22         echo foo content 2 >foo.bin &&
  23         echo bar content 2 >bar.bin &&
  24         git commit -a -m two &&
  25         foo2=$(git rev-parse --short HEAD:foo.bin) &&
  26         bar2=$(git rev-parse --short HEAD:bar.bin) &&
  27         echo "*.bin diff=magic" >.gitattributes &&
  28         git config diff.magic.textconv ./helper &&
  29         git config diff.magic.cachetextconv true
  30 '
  31
  32 cat >expect <<EOF
  33 diff --git a/bar.bin b/bar.bin
  34 index $bar1..$bar2 100644
  35 --- a/bar.bin
  36 +++ b/bar.bin
  37 @@ -1 +1 @@
  38 -converted: bar content 1
  39 +converted: bar content 2
  40 diff --git a/foo.bin b/foo.bin
  41 index $foo1..$foo2 100644
  42 --- a/foo.bin
  43 +++ b/foo.bin
  44 @@ -1 +1 @@
  45 -converted: foo content 1
  46 +converted: foo content 2
  47 EOF
  48
  49 test_expect_success 'first textconv works' '
  50         git diff HEAD^ HEAD >actual &&
  51         test_cmp expect actual
  52 '
  53
  54 test_expect_success 'cached textconv produces same output' '
  55         git diff HEAD^ HEAD >actual &&
  56         test_cmp expect actual
  57 '
  58
  59 test_expect_success 'cached textconv does not run helper' '
  60         rm -f helper.out &&
  61         git diff HEAD^ HEAD >actual &&
  62         test_cmp expect actual &&
  63         ! test -r helper.out
  64 '
  65
  66 cat >expect <<EOF
  67 diff --git a/bar.bin b/bar.bin
  68 index $bar1..$bar2 100644
  69 --- a/bar.bin
  70 +++ b/bar.bin
  71 @@ -1,2 +1,2 @@
  72  converted: other
  73 -converted: bar content 1
  74 +converted: bar content 2
  75 diff --git a/foo.bin b/foo.bin
  76 index $foo1..$foo2 100644
  77 --- a/foo.bin
  78 +++ b/foo.bin
  79 @@ -1,2 +1,2 @@
  80  converted: other
  81 -converted: foo content 1
  82 +converted: foo content 2
  83 EOF
  84 test_expect_success 'changing textconv invalidates cache' '
  85         echo other >other &&
  86         git config diff.magic.textconv "./helper other" &&
  87         git diff HEAD^ HEAD >actual &&
  88         test_cmp expect actual
  89 '
  90
  91 cat >expect <<EOF
  92 diff --git a/bar.bin b/bar.bin
  93 index $bar1..$bar2 100644
  94 --- a/bar.bin
  95 +++ b/bar.bin
  96 @@ -1,2 +1,2 @@
  97  converted: other
  98 -converted: bar content 1
  99 +converted: bar content 2
 100 diff --git a/foo.bin b/foo.bin
 101 index $foo1..$foo2 100644
 102 --- a/foo.bin
 103 +++ b/foo.bin
 104 @@ -1 +1 @@
 105 -converted: foo content 1
 106 +converted: foo content 2
 107 EOF
 108 test_expect_success 'switching diff driver produces correct results' '
 109         git config diff.moremagic.textconv ./helper &&
 110         echo foo.bin diff=moremagic >>.gitattributes &&
 111         git diff HEAD^ HEAD >actual &&
 112         test_cmp expect actual
 113 '
 114
 115 # The point here is to test that we can log the notes cache and still use it to
 116 # produce a diff later (older versions of git would segfault on this). It's
 117 # much more likely to come up in the real world with "log --all -p", but using
 118 # --no-walk lets us reliably reproduce the order of traversal.
 119 test_expect_success 'log notes cache and still use cache for -p' '
 120         git log --no-walk -p refs/notes/textconv/magic HEAD
 121 '
 122
 123 test_expect_success 'caching is silently ignored outside repo' '
 124         mkdir -p non-repo &&
 125         echo one >non-repo/one &&
 126         echo two >non-repo/two &&
 127         echo "* diff=test" >attr &&
 128         test_expect_code 1 \
 129         nongit git -c core.attributesFile="$PWD/attr" \
 130                    -c diff.test.textconv="tr a-z A-Z <" \
 131                    -c diff.test.cachetextconv=true \
 132                    diff --no-index one two >actual &&
 133         cat >expect <<-\EOF &&
 134         diff --git a/one b/two
 135         index 5626abf..f719efd 100644
 136         --- a/one
 137         +++ b/two
 138         @@ -1 +1 @@
 139         -ONE
 140         +TWO
 141         EOF
 142         test_cmp expect actual
 143 '
 144
 145 test_done