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git/t/t4020-diff-external.sh
Jeff King eaf0551d56 tests: use "$TEST_DIRECTORY" instead of ".."
The $TEST_DIRECTORY variable allows tests to find the
top-level test directory regardless of the current working
directory.

In the past, this has been used to accomodate tests which
change directories, but it is also the first step to being
able to move trash directories outside of the
$TEST_DIRECTORY hierarchy.

Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2009-08-09 10:48:39 -07:00

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#!/bin/sh
test_description='external diff interface test'
. ./test-lib.sh
_z40=0000000000000000000000000000000000000000
test_expect_success setup '
test_tick &&
echo initial >file &&
git add file &&
git commit -m initial &&
test_tick &&
echo second >file &&
git add file &&
git commit -m second &&
test_tick &&
echo third >file
'
test_expect_success 'GIT_EXTERNAL_DIFF environment' '
GIT_EXTERNAL_DIFF=echo git diff | {
read path oldfile oldhex oldmode newfile newhex newmode &&
test "z$path" = zfile &&
test "z$oldmode" = z100644 &&
test "z$newhex" = "z$_z40" &&
test "z$newmode" = z100644 &&
oh=$(git rev-parse --verify HEAD:file) &&
test "z$oh" = "z$oldhex"
}
'
test_expect_success 'GIT_EXTERNAL_DIFF environment should apply only to diff' '
GIT_EXTERNAL_DIFF=echo git log -p -1 HEAD |
grep "^diff --git a/file b/file"
'
test_expect_success 'GIT_EXTERNAL_DIFF environment and --no-ext-diff' '
GIT_EXTERNAL_DIFF=echo git diff --no-ext-diff |
grep "^diff --git a/file b/file"
'
test_expect_success 'diff attribute' '
git config diff.parrot.command echo &&
echo >.gitattributes "file diff=parrot" &&
git diff | {
read path oldfile oldhex oldmode newfile newhex newmode &&
test "z$path" = zfile &&
test "z$oldmode" = z100644 &&
test "z$newhex" = "z$_z40" &&
test "z$newmode" = z100644 &&
oh=$(git rev-parse --verify HEAD:file) &&
test "z$oh" = "z$oldhex"
}
'
test_expect_success 'diff attribute should apply only to diff' '
git log -p -1 HEAD |
grep "^diff --git a/file b/file"
'
test_expect_success 'diff attribute and --no-ext-diff' '
git diff --no-ext-diff |
grep "^diff --git a/file b/file"
'
test_expect_success 'diff attribute' '
git config --unset diff.parrot.command &&
git config diff.color.command echo &&
echo >.gitattributes "file diff=color" &&
git diff | {
read path oldfile oldhex oldmode newfile newhex newmode &&
test "z$path" = zfile &&
test "z$oldmode" = z100644 &&
test "z$newhex" = "z$_z40" &&
test "z$newmode" = z100644 &&
oh=$(git rev-parse --verify HEAD:file) &&
test "z$oh" = "z$oldhex"
}
'
test_expect_success 'diff attribute should apply only to diff' '
git log -p -1 HEAD |
grep "^diff --git a/file b/file"
'
test_expect_success 'diff attribute and --no-ext-diff' '
git diff --no-ext-diff |
grep "^diff --git a/file b/file"
'
test_expect_success 'no diff with -diff' '
echo >.gitattributes "file -diff" &&
git diff | grep Binary
'
echo NULZbetweenZwords | perl -pe 'y/Z/\000/' > file
test_expect_success 'force diff with "diff"' '
echo >.gitattributes "file diff" &&
git diff >actual &&
test_cmp "$TEST_DIRECTORY"/t4020/diff.NUL actual
'
test_expect_success 'GIT_EXTERNAL_DIFF with more than one changed files' '
echo anotherfile > file2 &&
git add file2 &&
git commit -m "added 2nd file" &&
echo modified >file2 &&
GIT_EXTERNAL_DIFF=echo git diff
'
test_expect_success 'GIT_EXTERNAL_DIFF generates pretty paths' '
touch file.ext &&
git add file.ext &&
echo with extension > file.ext &&
GIT_EXTERNAL_DIFF=echo git diff file.ext | grep ......_file\.ext &&
git update-index --force-remove file.ext &&
rm file.ext
'
echo "#!$SHELL_PATH" >fake-diff.sh
cat >> fake-diff.sh <<\EOF
cat $2 >> crlfed.txt
EOF
chmod a+x fake-diff.sh
keep_only_cr () {
tr -dc '\015'
}
test_expect_success 'external diff with autocrlf = true' '
git config core.autocrlf true &&
GIT_EXTERNAL_DIFF=./fake-diff.sh git diff &&
test $(wc -l < crlfed.txt) = $(cat crlfed.txt | keep_only_cr | wc -c)
'
test_expect_success 'diff --cached' '
git add file &&
git update-index --assume-unchanged file &&
echo second >file &&
git diff --cached >actual &&
test_cmp "$TEST_DIRECTORY"/t4020/diff.NUL actual
'
test_done