git/t/t4122-apply-symlink-inside.sh
Junio C Hamano 6789275d37 tests: teach callers of test_i18ngrep to use test_grep
They are equivalents and the former still exists, so as long as the
only change this commit makes are to rewrite test_i18ngrep to
test_grep, there won't be any new bug, even if there still are
callers of test_i18ngrep remaining in the tree, or when merged to
other topics that add new uses of test_i18ngrep.

This patch was produced more or less with

    git grep -l -e 'test_i18ngrep ' 't/t[0-9][0-9][0-9][0-9]-*.sh' |
    xargs perl -p -i -e 's/test_i18ngrep /test_grep /'

and a good way to sanity check the result yourself is to run the
above in a checkout of c4603c1c (test framework: further deprecate
test_i18ngrep, 2023-10-31) and compare the resulting working tree
contents with the result of applying this patch to the same commit.
You'll see that test_i18ngrep in a few t/lib-*.sh files corrected,
in addition to the manual reproduction.

Signed-off-by: Junio C Hamano <gitster@pobox.com>
2023-11-02 17:13:44 +09:00

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#!/bin/sh
test_description='apply to deeper directory without getting fooled with symlink'
GIT_TEST_DEFAULT_INITIAL_BRANCH_NAME=main
export GIT_TEST_DEFAULT_INITIAL_BRANCH_NAME
TEST_PASSES_SANITIZE_LEAK=true
. ./test-lib.sh
test_expect_success setup '
mkdir -p arch/i386/boot arch/x86_64 &&
test_write_lines 1 2 3 4 5 >arch/i386/boot/Makefile &&
test_ln_s_add ../i386/boot arch/x86_64/boot &&
git add . &&
test_tick &&
git commit -m initial &&
git branch test &&
rm arch/x86_64/boot &&
mkdir arch/x86_64/boot &&
test_write_lines 2 3 4 5 6 >arch/x86_64/boot/Makefile &&
git add . &&
test_tick &&
git commit -a -m second &&
git format-patch --binary -1 --stdout >test.patch
'
test_expect_success apply '
git checkout test &&
git diff --exit-code test &&
git diff --exit-code --cached test &&
git apply --index test.patch
'
test_expect_success 'check result' '
git diff --exit-code main &&
git diff --exit-code --cached main &&
test_tick &&
git commit -m replay &&
T1=$(git rev-parse "main^{tree}") &&
T2=$(git rev-parse "HEAD^{tree}") &&
test "z$T1" = "z$T2"
'
test_expect_success SYMLINKS 'do not read from beyond symbolic link' '
git reset --hard &&
mkdir -p arch/x86_64/dir &&
>arch/x86_64/dir/file &&
git add arch/x86_64/dir/file &&
echo line >arch/x86_64/dir/file &&
git diff >patch &&
git reset --hard &&
mkdir arch/i386/dir &&
>arch/i386/dir/file &&
ln -s ../i386/dir arch/x86_64/dir &&
test_must_fail git apply patch &&
test_must_fail git apply --cached patch &&
test_must_fail git apply --index patch
'
test_expect_success SYMLINKS 'do not follow symbolic link (setup)' '
rm -rf arch/i386/dir arch/x86_64/dir &&
git reset --hard &&
ln -s ../i386/dir arch/x86_64/dir &&
git add arch/x86_64/dir &&
git diff HEAD >add_symlink.patch &&
git reset --hard &&
mkdir arch/x86_64/dir &&
>arch/x86_64/dir/file &&
git add arch/x86_64/dir/file &&
git diff HEAD >add_file.patch &&
git diff -R HEAD >del_file.patch &&
git reset --hard &&
rm -fr arch/x86_64/dir &&
cat add_symlink.patch add_file.patch >patch &&
cat add_symlink.patch del_file.patch >tricky_del &&
mkdir arch/i386/dir
'
test_expect_success SYMLINKS 'do not follow symbolic link (same input)' '
# same input creates a confusing symbolic link
test_must_fail git apply patch 2>error-wt &&
test_grep "beyond a symbolic link" error-wt &&
test_path_is_missing arch/x86_64/dir &&
test_path_is_missing arch/i386/dir/file &&
test_must_fail git apply --index patch 2>error-ix &&
test_grep "beyond a symbolic link" error-ix &&
test_path_is_missing arch/x86_64/dir &&
test_path_is_missing arch/i386/dir/file &&
test_must_fail git ls-files --error-unmatch arch/x86_64/dir &&
test_must_fail git ls-files --error-unmatch arch/i386/dir &&
test_must_fail git apply --cached patch 2>error-ct &&
test_grep "beyond a symbolic link" error-ct &&
test_must_fail git ls-files --error-unmatch arch/x86_64/dir &&
test_must_fail git ls-files --error-unmatch arch/i386/dir &&
>arch/i386/dir/file &&
git add arch/i386/dir/file &&
test_must_fail git apply tricky_del &&
test_path_is_file arch/i386/dir/file &&
test_must_fail git apply --index tricky_del &&
test_path_is_file arch/i386/dir/file &&
test_must_fail git ls-files --error-unmatch arch/x86_64/dir &&
git ls-files --error-unmatch arch/i386/dir &&
test_must_fail git apply --cached tricky_del &&
test_must_fail git ls-files --error-unmatch arch/x86_64/dir &&
git ls-files --error-unmatch arch/i386/dir
'
test_expect_success SYMLINKS 'do not follow symbolic link (existing)' '
# existing symbolic link
git reset --hard &&
ln -s ../i386/dir arch/x86_64/dir &&
git add arch/x86_64/dir &&
test_must_fail git apply add_file.patch 2>error-wt-add &&
test_grep "beyond a symbolic link" error-wt-add &&
test_path_is_missing arch/i386/dir/file &&
mkdir arch/i386/dir &&
>arch/i386/dir/file &&
test_must_fail git apply del_file.patch 2>error-wt-del &&
test_grep "beyond a symbolic link" error-wt-del &&
test_path_is_file arch/i386/dir/file &&
rm arch/i386/dir/file &&
test_must_fail git apply --index add_file.patch 2>error-ix-add &&
test_grep "beyond a symbolic link" error-ix-add &&
test_path_is_missing arch/i386/dir/file &&
test_must_fail git ls-files --error-unmatch arch/i386/dir &&
test_must_fail git apply --cached add_file.patch 2>error-ct-file &&
test_grep "beyond a symbolic link" error-ct-file &&
test_must_fail git ls-files --error-unmatch arch/i386/dir
'
test_done