git-commit-vandalism/t/t4020-diff-external.sh
Johannes Schindelin 4e218f54b3 Smudge the files fed to external diff and textconv
When preparing temporary files for an external diff or textconv, it is
easier on the external tools, especially when they are implemented using
platform tools, if they are fed the input after convert_to_working_tree().

This fixes msysGit issue 177.

Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2009-03-22 15:03:59 -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 "$TEST_DIRECTORY"/t4020/diff.NUL actual
'
test_expect_success 'GIT_EXTERNAL_DIFF with more than one changed files' '
echo anotherfile > file2 &&
git add file2 &&
git commit -m "added 2nd file" &&
echo modified >file2 &&
GIT_EXTERNAL_DIFF=echo git diff
'
echo "#!$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_done