git-commit-vandalism/t/t1091-sparse-checkout-builtin.sh
Derrick Stolee fb10ca5b54 sparse-checkout: write using lockfile
If two 'git sparse-checkout set' subcommands are launched at the
same time, the behavior can be unexpected as they compete to write
the sparse-checkout file and update the working directory.

Take a lockfile around the writes to the sparse-checkout file. In
addition, acquire this lock around the working directory update
to avoid two commands updating the working directory in different
ways.

Signed-off-by: Derrick Stolee <dstolee@microsoft.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2019-11-22 16:11:45 +09:00

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#!/bin/sh
test_description='sparse checkout builtin tests'
. ./test-lib.sh
test_expect_success 'setup' '
git init repo &&
(
cd repo &&
echo "initial" >a &&
mkdir folder1 folder2 deep &&
mkdir deep/deeper1 deep/deeper2 &&
mkdir deep/deeper1/deepest &&
cp a folder1 &&
cp a folder2 &&
cp a deep &&
cp a deep/deeper1 &&
cp a deep/deeper2 &&
cp a deep/deeper1/deepest &&
git add . &&
git commit -m "initial commit"
)
'
test_expect_success 'git sparse-checkout list (empty)' '
git -C repo sparse-checkout list >list 2>err &&
test_must_be_empty list &&
test_i18ngrep "this worktree is not sparse (sparse-checkout file may not exist)" err
'
test_expect_success 'git sparse-checkout list (populated)' '
test_when_finished rm -f repo/.git/info/sparse-checkout &&
cat >repo/.git/info/sparse-checkout <<-EOF &&
/folder1/*
/deep/
**/a
!*bin*
EOF
cp repo/.git/info/sparse-checkout expect &&
git -C repo sparse-checkout list >list &&
test_cmp expect list
'
test_expect_success 'git sparse-checkout init' '
git -C repo sparse-checkout init &&
cat >expect <<-EOF &&
/*
!/*/
EOF
test_cmp expect repo/.git/info/sparse-checkout &&
test_cmp_config -C repo true core.sparsecheckout &&
ls repo >dir &&
echo a >expect &&
test_cmp expect dir
'
test_expect_success 'git sparse-checkout list after init' '
git -C repo sparse-checkout list >actual &&
cat >expect <<-EOF &&
/*
!/*/
EOF
test_cmp expect actual
'
test_expect_success 'init with existing sparse-checkout' '
echo "*folder*" >> repo/.git/info/sparse-checkout &&
git -C repo sparse-checkout init &&
cat >expect <<-EOF &&
/*
!/*/
*folder*
EOF
test_cmp expect repo/.git/info/sparse-checkout &&
ls repo >dir &&
cat >expect <<-EOF &&
a
folder1
folder2
EOF
test_cmp expect dir
'
test_expect_success 'clone --sparse' '
git clone --sparse repo clone &&
git -C clone sparse-checkout list >actual &&
cat >expect <<-EOF &&
/*
!/*/
EOF
test_cmp expect actual &&
ls clone >dir &&
echo a >expect &&
test_cmp expect dir
'
test_expect_success 'set enables config' '
git init empty-config &&
(
cd empty-config &&
test_commit test file &&
test_path_is_missing .git/config.worktree &&
test_must_fail git sparse-checkout set nothing &&
test_path_is_file .git/config.worktree &&
test_must_fail git config core.sparseCheckout &&
git sparse-checkout set "/*" &&
test_cmp_config true core.sparseCheckout
)
'
test_expect_success 'set sparse-checkout using builtin' '
git -C repo sparse-checkout set "/*" "!/*/" "*folder*" &&
cat >expect <<-EOF &&
/*
!/*/
*folder*
EOF
git -C repo sparse-checkout list >actual &&
test_cmp expect actual &&
test_cmp expect repo/.git/info/sparse-checkout &&
ls repo >dir &&
cat >expect <<-EOF &&
a
folder1
folder2
EOF
test_cmp expect dir
'
test_expect_success 'set sparse-checkout using --stdin' '
cat >expect <<-EOF &&
/*
!/*/
/folder1/
/folder2/
EOF
git -C repo sparse-checkout set --stdin <expect &&
git -C repo sparse-checkout list >actual &&
test_cmp expect actual &&
test_cmp expect repo/.git/info/sparse-checkout &&
ls repo >dir &&
cat >expect <<-EOF &&
a
folder1
folder2
EOF
test_cmp expect dir
'
test_expect_success 'cone mode: match patterns' '
git -C repo config --worktree core.sparseCheckoutCone true &&
rm -rf repo/a repo/folder1 repo/folder2 &&
git -C repo read-tree -mu HEAD 2>err &&
test_i18ngrep ! "disabling cone patterns" err &&
git -C repo reset --hard &&
ls repo >dir &&
cat >expect <<-EOF &&
a
folder1
folder2
EOF
test_cmp expect dir
'
test_expect_success 'cone mode: warn on bad pattern' '
test_when_finished mv sparse-checkout repo/.git/info/ &&
cp repo/.git/info/sparse-checkout . &&
echo "!/deep/deeper/*" >>repo/.git/info/sparse-checkout &&
git -C repo read-tree -mu HEAD 2>err &&
test_i18ngrep "unrecognized negative pattern" err
'
test_expect_success 'sparse-checkout disable' '
test_when_finished rm -rf repo/.git/info/sparse-checkout &&
git -C repo sparse-checkout disable &&
test_path_is_file repo/.git/info/sparse-checkout &&
git -C repo config --list >config &&
test_must_fail git config core.sparseCheckout &&
ls repo >dir &&
cat >expect <<-EOF &&
a
deep
folder1
folder2
EOF
test_cmp expect dir
'
test_expect_success 'cone mode: init and set' '
git -C repo sparse-checkout init --cone &&
git -C repo config --list >config &&
test_i18ngrep "core.sparsecheckoutcone=true" config &&
ls repo >dir &&
echo a >expect &&
test_cmp expect dir &&
git -C repo sparse-checkout set deep/deeper1/deepest/ 2>err &&
test_must_be_empty err &&
ls repo >dir &&
cat >expect <<-EOF &&
a
deep
EOF
test_cmp expect dir &&
ls repo/deep >dir &&
cat >expect <<-EOF &&
a
deeper1
EOF
test_cmp expect dir &&
ls repo/deep/deeper1 >dir &&
cat >expect <<-EOF &&
a
deepest
EOF
test_cmp expect dir &&
cat >expect <<-EOF &&
/*
!/*/
/deep/
!/deep/*/
/deep/deeper1/
!/deep/deeper1/*/
/deep/deeper1/deepest/
EOF
test_cmp expect repo/.git/info/sparse-checkout &&
git -C repo sparse-checkout set --stdin 2>err <<-EOF &&
folder1
folder2
EOF
test_must_be_empty err &&
cat >expect <<-EOF &&
a
folder1
folder2
EOF
ls repo >dir &&
test_cmp expect dir
'
test_expect_success 'cone mode: set with nested folders' '
git -C repo sparse-checkout set deep deep/deeper1/deepest 2>err &&
test_line_count = 0 err &&
cat >expect <<-EOF &&
/*
!/*/
/deep/
EOF
test_cmp repo/.git/info/sparse-checkout expect
'
test_expect_success 'revert to old sparse-checkout on bad update' '
echo update >repo/deep/deeper2/a &&
cp repo/.git/info/sparse-checkout expect &&
test_must_fail git -C repo sparse-checkout set deep/deeper1 2>err &&
test_i18ngrep "Cannot update sparse checkout" err &&
test_cmp repo/.git/info/sparse-checkout expect &&
ls repo/deep >dir &&
cat >expect <<-EOF &&
a
deeper1
deeper2
EOF
test_cmp dir expect
'
test_expect_success 'revert to old sparse-checkout on empty update' '
git init empty-test &&
(
echo >file &&
git add file &&
git commit -m "test" &&
test_must_fail git sparse-checkout set nothing 2>err &&
test_i18ngrep "Sparse checkout leaves no entry on working directory" err &&
test_i18ngrep ! ".git/index.lock" err &&
git sparse-checkout set file
)
'
test_expect_success 'fail when lock is taken' '
test_when_finished rm -rf repo/.git/info/sparse-checkout.lock &&
touch repo/.git/info/sparse-checkout.lock &&
test_must_fail git -C repo sparse-checkout set deep 2>err &&
test_i18ngrep "File exists" err
'
test_done