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git/t/t4020-diff-external.sh
Vincent van Ravesteijn a3428205e6 t: Replace 'perl' by $PERL_PATH
GIT-BUILD-OPTIONS defines PERL_PATH to be used in the test suite. Only a
few tests already actually use this variable when perl is needed. The
other test just call 'perl' and it might happen that the wrong perl
interpreter is used.

This becomes problematic on Windows, when the perl interpreter that is
compiled and installed on the Windows system is used, because this perl
interpreter might introduce some unexpected LF->CRLF conversions.

This patch makes sure that $PERL_PATH is used everywhere in the test suite
and that the correct perl interpreter is used.

Signed-off-by: Vincent van Ravesteijn <vfr@lyx.org>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2012-06-12 09:30:41 -07:00

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#!/bin/sh
test_description='external diff interface test'
. ./test-lib.sh
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 | $PERL_PATH -pe 'y/Z/\000/' > file
test_expect_success 'force diff with "diff"' '
echo >.gitattributes "file diff" &&
git diff >actual &&
test_cmp "$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