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git/t/t1011-read-tree-sparse-checkout.sh
Nguyễn Thái Ngọc Duy 28911091c1 sparse checkout: do not eagerly decide the fate for whole directory
Sparse-setting code follows closely how files are excluded in
read_directory(), every entry (including directories) are fed to
excluded_from_list() to decide if the entry is suitable. Directories
are treated no different than files. If a directory is matched (or
not), the whole directory is considered matched (or not) and the
process moves on.

This generally works as long as there are no patterns to exclude parts
of the directory. In case of sparse checkout code, the following patterns

  t
  !t/t0000-basic.sh

will produce a worktree with full directory "t" even if t0000-basic.sh
is requested to stay out.

By the same reasoning, if a directory is to be excluded, any rules to
re-include certain files within that directory will be ignored.

Fix it by always checking files against patterns. If no pattern can be
used to decide whether an entry is in our out
(ie. excluded_from_list() returns -1), the entry will be
included/excluded the same as their parent directory.

Noticed-by: <skillzero@gmail.com>
Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2011-05-10 09:04:26 -07:00

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#!/bin/sh
test_description='sparse checkout tests
* (tag: removed, master) removed
| D sub/added
* (HEAD, tag: top) modified and added
| M init.t
| A sub/added
* (tag: init) init
A init.t
'
. ./test-lib.sh
test_expect_success 'setup' '
cat >expected <<-\EOF &&
100644 77f0ba1734ed79d12881f81b36ee134de6a3327b 0 init.t
100644 e69de29bb2d1d6434b8b29ae775ad8c2e48c5391 0 sub/added
100644 e69de29bb2d1d6434b8b29ae775ad8c2e48c5391 0 sub/addedtoo
100644 e69de29bb2d1d6434b8b29ae775ad8c2e48c5391 0 subsub/added
EOF
cat >expected.swt <<-\EOF &&
H init.t
H sub/added
H sub/addedtoo
H subsub/added
EOF
test_commit init &&
echo modified >>init.t &&
mkdir sub subsub &&
touch sub/added sub/addedtoo subsub/added &&
git add init.t sub/added sub/addedtoo subsub/added &&
git commit -m "modified and added" &&
git tag top &&
git rm sub/added &&
git commit -m removed &&
git tag removed &&
git checkout top &&
git ls-files --stage >result &&
test_cmp expected result
'
test_expect_success 'read-tree without .git/info/sparse-checkout' '
git read-tree -m -u HEAD &&
git ls-files --stage >result &&
test_cmp expected result &&
git ls-files -t >result &&
test_cmp expected.swt result
'
test_expect_success 'read-tree with .git/info/sparse-checkout but disabled' '
echo >.git/info/sparse-checkout &&
git read-tree -m -u HEAD &&
git ls-files -t >result &&
test_cmp expected.swt result &&
test -f init.t &&
test -f sub/added
'
test_expect_success 'read-tree --no-sparse-checkout with empty .git/info/sparse-checkout and enabled' '
git config core.sparsecheckout true &&
echo >.git/info/sparse-checkout &&
git read-tree --no-sparse-checkout -m -u HEAD &&
git ls-files -t >result &&
test_cmp expected.swt result &&
test -f init.t &&
test -f sub/added
'
test_expect_success 'read-tree with empty .git/info/sparse-checkout' '
git config core.sparsecheckout true &&
echo >.git/info/sparse-checkout &&
test_must_fail git read-tree -m -u HEAD &&
git ls-files --stage >result &&
test_cmp expected result &&
git ls-files -t >result &&
test_cmp expected.swt result &&
test -f init.t &&
test -f sub/added
'
test_expect_success 'match directories with trailing slash' '
cat >expected.swt-noinit <<-\EOF &&
S init.t
H sub/added
H sub/addedtoo
S subsub/added
EOF
echo sub/ > .git/info/sparse-checkout &&
git read-tree -m -u HEAD &&
git ls-files -t > result &&
test_cmp expected.swt-noinit result &&
test ! -f init.t &&
test -f sub/added
'
test_expect_success 'match directories without trailing slash' '
echo sub >.git/info/sparse-checkout &&
git read-tree -m -u HEAD &&
git ls-files -t >result &&
test_cmp expected.swt-noinit result &&
test ! -f init.t &&
test -f sub/added
'
test_expect_success 'match directories with negated patterns' '
cat >expected.swt-negation <<\EOF &&
S init.t
S sub/added
H sub/addedtoo
S subsub/added
EOF
cat >.git/info/sparse-checkout <<\EOF &&
sub
!sub/added
EOF
git read-tree -m -u HEAD &&
git ls-files -t >result &&
test_cmp expected.swt-negation result &&
test ! -f init.t &&
test ! -f sub/added &&
test -f sub/addedtoo
'
test_expect_success 'match directories with negated patterns (2)' '
cat >expected.swt-negation2 <<\EOF &&
H init.t
H sub/added
S sub/addedtoo
H subsub/added
EOF
cat >.git/info/sparse-checkout <<\EOF &&
/*
!sub
sub/added
EOF
git read-tree -m -u HEAD &&
git ls-files -t >result &&
test_cmp expected.swt-negation2 result &&
test -f init.t &&
test -f sub/added &&
test ! -f sub/addedtoo
'
test_expect_success 'match directory pattern' '
echo "s?b" >.git/info/sparse-checkout &&
git read-tree -m -u HEAD &&
git ls-files -t >result &&
test_cmp expected.swt-noinit result &&
test ! -f init.t &&
test -f sub/added
'
test_expect_success 'checkout area changes' '
cat >expected.swt-nosub <<-\EOF &&
H init.t
S sub/added
S sub/addedtoo
S subsub/added
EOF
echo init.t >.git/info/sparse-checkout &&
git read-tree -m -u HEAD &&
git ls-files -t >result &&
test_cmp expected.swt-nosub result &&
test -f init.t &&
test ! -f sub/added
'
test_expect_success 'read-tree updates worktree, absent case' '
echo sub/added >.git/info/sparse-checkout &&
git checkout -f top &&
git read-tree -m -u HEAD^ &&
test ! -f init.t
'
test_expect_success 'read-tree updates worktree, dirty case' '
echo sub/added >.git/info/sparse-checkout &&
git checkout -f top &&
echo dirty >init.t &&
git read-tree -m -u HEAD^ &&
grep -q dirty init.t &&
rm init.t
'
test_expect_success 'read-tree removes worktree, dirty case' '
echo init.t >.git/info/sparse-checkout &&
git checkout -f top &&
echo dirty >added &&
git read-tree -m -u HEAD^ &&
grep -q dirty added
'
test_expect_success 'read-tree adds to worktree, absent case' '
echo init.t >.git/info/sparse-checkout &&
git checkout -f removed &&
git read-tree -u -m HEAD^ &&
test ! -f sub/added
'
test_expect_success 'read-tree adds to worktree, dirty case' '
echo init.t >.git/info/sparse-checkout &&
git checkout -f removed &&
mkdir sub &&
echo dirty >sub/added &&
git read-tree -u -m HEAD^ &&
grep -q dirty sub/added
'
test_expect_success 'index removal and worktree narrowing at the same time' '
>empty &&
echo init.t >.git/info/sparse-checkout &&
echo sub/added >>.git/info/sparse-checkout &&
git checkout -f top &&
echo init.t >.git/info/sparse-checkout &&
git checkout removed &&
git ls-files sub/added >result &&
test ! -f sub/added &&
test_cmp empty result
'
test_expect_success 'read-tree --reset removes outside worktree' '
>empty &&
echo init.t >.git/info/sparse-checkout &&
git checkout -f top &&
git reset --hard removed &&
git ls-files sub/added >result &&
test_cmp empty result
'
test_done