refactor userdiff textconv code
[git/git.git] / t / t4030-diff-textconv.sh
1 #!/bin/sh
2
3 test_description='diff.*.textconv tests'
4 . ./test-lib.sh
5
6 find_diff() {
7 sed '1,/^index /d' | sed '/^-- $/,$d'
8 }
9
10 cat >expect.binary <<'EOF'
11 Binary files a/file and b/file differ
12 EOF
13
14 cat >expect.text <<'EOF'
15 --- a/file
16 +++ b/file
17 @@ -1 +1,2 @@
18 0
19 +1
20 EOF
21
22 cat >hexdump <<'EOF'
23 #!/bin/sh
24 perl -e '$/ = undef; $_ = <>; s/./ord($&)/ge; print $_' "$1"
25 EOF
26 chmod +x hexdump
27
28 test_expect_success 'setup binary file with history' '
29 printf "\\0\\n" >file &&
30 git add file &&
31 git commit -m one &&
32 printf "\\1\\n" >>file &&
33 git add file &&
34 git commit -m two
35 '
36
37 test_expect_success 'file is considered binary by porcelain' '
38 git diff HEAD^ HEAD >diff &&
39 find_diff <diff >actual &&
40 test_cmp expect.binary actual
41 '
42
43 test_expect_success 'file is considered binary by plumbing' '
44 git diff-tree -p HEAD^ HEAD >diff &&
45 find_diff <diff >actual &&
46 test_cmp expect.binary actual
47 '
48
49 test_expect_success 'setup textconv filters' '
50 echo file diff=foo >.gitattributes &&
51 git config diff.foo.textconv "$PWD"/hexdump &&
52 git config diff.fail.textconv false
53 '
54
55 test_expect_success 'diff produces text' '
56 git diff HEAD^ HEAD >diff &&
57 find_diff <diff >actual &&
58 test_cmp expect.text actual
59 '
60
61 test_expect_success 'diff-tree produces binary' '
62 git diff-tree -p HEAD^ HEAD >diff &&
63 find_diff <diff >actual &&
64 test_cmp expect.binary actual
65 '
66
67 test_expect_success 'log produces text' '
68 git log -1 -p >log &&
69 find_diff <log >actual &&
70 test_cmp expect.text actual
71 '
72
73 test_expect_failure 'format-patch produces binary' '
74 git format-patch --no-binary --stdout HEAD^ >patch &&
75 find_diff <patch >actual &&
76 test_cmp expect.binary actual
77 '
78
79 cat >expect.stat <<'EOF'
80 file | Bin 2 -> 4 bytes
81 1 files changed, 0 insertions(+), 0 deletions(-)
82 EOF
83 test_expect_success 'diffstat does not run textconv' '
84 echo file diff=fail >.gitattributes &&
85 git diff --stat HEAD^ HEAD >actual &&
86 test_cmp expect.stat actual
87 '
88 # restore working setup
89 echo file diff=foo >.gitattributes
90
91 cat >expect.typechange <<'EOF'
92 --- a/file
93 +++ /dev/null
94 @@ -1,2 +0,0 @@
95 -0
96 -1
97 diff --git a/file b/file
98 new file mode 120000
99 index ad8b3d2..67be421
100 --- /dev/null
101 +++ b/file
102 @@ -0,0 +1 @@
103 +frotz
104 \ No newline at end of file
105 EOF
106 # make a symlink the hard way that works on symlink-challenged file systems
107 test_expect_failure 'textconv does not act on symlinks' '
108 echo -n frotz > file &&
109 git add file &&
110 git ls-files -s | sed -e s/100644/120000/ |
111 git update-index --index-info &&
112 git commit -m typechange &&
113 git show >diff &&
114 find_diff <diff >actual &&
115 test_cmp expect.typechange actual
116 '
117
118 test_done