git/t/t1051-large-conversion.sh

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#!/bin/sh
test_description='test conversion filters on large files'
TEST_PASSES_SANITIZE_LEAK=true
. ./test-lib.sh
set_attr() {
test_when_finished 'rm -f .gitattributes' &&
echo "* $*" >.gitattributes
}
check_input() {
git read-tree --empty &&
git add small large &&
git cat-file blob :small >small.index &&
git cat-file blob :large | head -n 1 >large.index &&
test_cmp small.index large.index
}
check_output() {
rm -f small large &&
git checkout small large &&
head -n 1 large >large.head &&
test_cmp small large.head
}
test_expect_success 'setup input tests' '
printf "\$Id: foo\$\\r\\n" >small &&
cat small small >large &&
git config core.bigfilethreshold 20 &&
git config filter.test.clean "sed s/.*/CLEAN/"
'
test_expect_success 'autocrlf=true converts on input' '
test_config core.autocrlf true &&
check_input
'
test_expect_success 'eol=crlf converts on input' '
set_attr eol=crlf &&
check_input
'
test_expect_success 'ident converts on input' '
set_attr ident &&
check_input
'
test_expect_success 'user-defined filters convert on input' '
set_attr filter=test &&
check_input
'
test_expect_success 'setup output tests' '
echo "\$Id\$" >small &&
cat small small >large &&
git add small large &&
git config core.bigfilethreshold 7 &&
git config filter.test.smudge "sed s/.*/SMUDGE/"
'
test_expect_success 'autocrlf=true converts on output' '
test_config core.autocrlf true &&
check_output
'
test_expect_success 'eol=crlf converts on output' '
set_attr eol=crlf &&
check_output
'
test_expect_success 'user-defined filters convert on output' '
set_attr filter=test &&
check_output
'
test_expect_success 'ident converts on output' '
set_attr ident &&
rm -f small large &&
git checkout small large &&
sed -n "s/Id: .*/Id: SHA/p" <small >small.clean &&
head -n 1 large >large.head &&
sed -n "s/Id: .*/Id: SHA/p" <large.head >large.clean &&
test_cmp small.clean large.clean
'
# This smudge filter prepends 5GB of zeros to the file it checks out. This
# ensures that smudging doesn't mangle large files on 64-bit Windows.
test_expect_success EXPENSIVE,SIZE_T_IS_64BIT,!LONG_IS_64BIT \
'files over 4GB convert on output' '
test_commit test small "a small file" &&
small_size=$(test_file_size small) &&
test_config filter.makelarge.smudge \
"test-tool genzeros $((5*1024*1024*1024)) && cat" &&
echo "small filter=makelarge" >.gitattributes &&
rm small &&
git checkout -- small &&
size=$(test_file_size small) &&
test "$size" -eq $((5 * 1024 * 1024 * 1024 + $small_size))
'
# This clean filter writes down the size of input it receives. By checking against
# the actual size, we ensure that cleaning doesn't mangle large files on 64-bit Windows.
test_expect_success EXPENSIVE,SIZE_T_IS_64BIT,!LONG_IS_64BIT \
'files over 4GB convert on input' '
test-tool genzeros $((5*1024*1024*1024)) >big &&
test_config filter.checklarge.clean "wc -c >big.size" &&
echo "big filter=checklarge" >.gitattributes &&
git add big &&
test $(test_file_size big) -eq $(cat big.size)
'
test_done