git/t/t2031-checkout-long-paths.sh

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#!/bin/sh
test_description='checkout long paths on Windows
Ensures that Git for Windows can deal with long paths (>260) enabled via core.longpaths'
. ./test-lib.sh
if test_have_prereq !MINGW
then
skip_all='skipping MINGW specific long paths test'
test_done
fi
test_expect_success setup '
p=longpathxx && # -> 10
p=$p$p$p$p$p && # -> 50
p=$p$p$p$p$p && # -> 250
path=${p}/longtestfile && # -> 263 (MAX_PATH = 260)
blob=$(echo foobar | git hash-object -w --stdin) &&
printf "100644 %s 0\t%s\n" "$blob" "$path" |
git update-index --add --index-info &&
git commit -m initial -q
'
test_expect_success 'checkout of long paths without core.longpaths fails' '
git config core.longpaths false &&
test_must_fail git checkout -f 2>error &&
grep -q "Filename too long" error &&
test ! -d longpa*
'
test_expect_success 'checkout of long paths with core.longpaths works' '
git config core.longpaths true &&
git checkout -f &&
test_path_is_file longpa*/longtestfile
'
test_expect_success 'update of long paths' '
echo frotz >>$(ls longpa*/longtestfile) &&
echo $path > expect &&
git ls-files -m > actual &&
test_cmp expect actual &&
git add $path &&
git commit -m second &&
git grep "frotz" HEAD -- $path
'
test_expect_success cleanup '
# bash cannot delete the trash dir if it contains a long path
# lets help cleaning up (unless in debug mode)
if test -z "$debug"
then
rm -rf longpa~1
fi
'
# check that the template used in the test won't be too long:
abspath="$(pwd)"/testdir
test ${#abspath} -gt 230 ||
test_set_prereq SHORTABSPATH
test_expect_success SHORTABSPATH 'clean up path close to MAX_PATH' '
p=/123456789abcdef/123456789abcdef/123456789abcdef/123456789abc/ef &&
p=y$p$p$p$p &&
subdir="x$(echo "$p" | tail -c $((253 - ${#abspath})) - )" &&
# Now, $abspath/$subdir has exactly 254 characters, and is inside CWD
p2="$abspath/$subdir" &&
test 254 = ${#p2} &&
# Be careful to overcome path limitations of the MSys tools and split
# the $subdir into two parts. ($subdir2 has to contain 16 chars and a
# slash somewhere following; that is why we asked for abspath <= 230 and
# why we placed a slash near the end of the $subdir template.)
subdir2=${subdir#????????????????*/} &&
subdir1=testdir/${subdir%/$subdir2} &&
mkdir -p "$subdir1" &&
i=0 &&
# The most important case is when absolute path is 258 characters long,
# and that will be when i == 4.
while test $i -le 7
do
mkdir -p $subdir2 &&
touch $subdir2/one-file &&
mv ${subdir2%%/*} "$subdir1/" &&
subdir2=z${subdir2} &&
i=$(($i+1)) ||
exit 1
done &&
# now check that git is able to clear the tree:
(cd testdir &&
git init &&
git config core.longpaths yes &&
git clean -fdx) &&
test ! -d "$subdir1"
'
test_done