mirror of
https://github.com/git/git.git
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71f19cce36
"git apply" was not very careful about reading from, removing, updating and creating paths outside the working tree (under --index/--cached) or the current directory (when used as a replacement for GNU patch). * jc/apply-beyond-symlink: apply: do not touch a file beyond a symbolic link apply: do not read from beyond a symbolic link apply: do not read from the filesystem under --index apply: reject input that touches outside the working area
154 lines
4.3 KiB
Bash
Executable file
154 lines
4.3 KiB
Bash
Executable file
#!/bin/sh
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test_description='apply to deeper directory without getting fooled with symlink'
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. ./test-lib.sh
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test_expect_success setup '
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mkdir -p arch/i386/boot arch/x86_64 &&
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test_write_lines 1 2 3 4 5 >arch/i386/boot/Makefile &&
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test_ln_s_add ../i386/boot arch/x86_64/boot &&
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git add . &&
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test_tick &&
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git commit -m initial &&
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git branch test &&
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rm arch/x86_64/boot &&
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mkdir arch/x86_64/boot &&
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test_write_lines 2 3 4 5 6 >arch/x86_64/boot/Makefile &&
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git add . &&
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test_tick &&
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git commit -a -m second &&
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git format-patch --binary -1 --stdout >test.patch
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'
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test_expect_success apply '
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git checkout test &&
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git diff --exit-code test &&
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git diff --exit-code --cached test &&
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git apply --index test.patch
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'
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test_expect_success 'check result' '
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git diff --exit-code master &&
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git diff --exit-code --cached master &&
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test_tick &&
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git commit -m replay &&
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T1=$(git rev-parse "master^{tree}") &&
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T2=$(git rev-parse "HEAD^{tree}") &&
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test "z$T1" = "z$T2"
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'
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test_expect_success SYMLINKS 'do not read from beyond symbolic link' '
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git reset --hard &&
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mkdir -p arch/x86_64/dir &&
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>arch/x86_64/dir/file &&
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git add arch/x86_64/dir/file &&
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echo line >arch/x86_64/dir/file &&
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git diff >patch &&
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git reset --hard &&
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mkdir arch/i386/dir &&
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>arch/i386/dir/file &&
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ln -s ../i386/dir arch/x86_64/dir &&
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test_must_fail git apply patch &&
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test_must_fail git apply --cached patch &&
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test_must_fail git apply --index patch
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'
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test_expect_success SYMLINKS 'do not follow symbolic link (setup)' '
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rm -rf arch/i386/dir arch/x86_64/dir &&
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git reset --hard &&
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ln -s ../i386/dir arch/x86_64/dir &&
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git add arch/x86_64/dir &&
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git diff HEAD >add_symlink.patch &&
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git reset --hard &&
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mkdir arch/x86_64/dir &&
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>arch/x86_64/dir/file &&
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git add arch/x86_64/dir/file &&
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git diff HEAD >add_file.patch &&
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git diff -R HEAD >del_file.patch &&
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git reset --hard &&
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rm -fr arch/x86_64/dir &&
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cat add_symlink.patch add_file.patch >patch &&
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cat add_symlink.patch del_file.patch >tricky_del &&
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mkdir arch/i386/dir
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'
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test_expect_success SYMLINKS 'do not follow symbolic link (same input)' '
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# same input creates a confusing symbolic link
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test_must_fail git apply patch 2>error-wt &&
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test_i18ngrep "beyond a symbolic link" error-wt &&
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test_path_is_missing arch/x86_64/dir &&
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test_path_is_missing arch/i386/dir/file &&
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test_must_fail git apply --index patch 2>error-ix &&
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test_i18ngrep "beyond a symbolic link" error-ix &&
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test_path_is_missing arch/x86_64/dir &&
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test_path_is_missing arch/i386/dir/file &&
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test_must_fail git ls-files --error-unmatch arch/x86_64/dir &&
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test_must_fail git ls-files --error-unmatch arch/i386/dir &&
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test_must_fail git apply --cached patch 2>error-ct &&
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test_i18ngrep "beyond a symbolic link" error-ct &&
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test_must_fail git ls-files --error-unmatch arch/x86_64/dir &&
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test_must_fail git ls-files --error-unmatch arch/i386/dir &&
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>arch/i386/dir/file &&
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git add arch/i386/dir/file &&
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test_must_fail git apply tricky_del &&
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test_path_is_file arch/i386/dir/file &&
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test_must_fail git apply --index tricky_del &&
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test_path_is_file arch/i386/dir/file &&
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test_must_fail git ls-files --error-unmatch arch/x86_64/dir &&
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git ls-files --error-unmatch arch/i386/dir &&
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test_must_fail git apply --cached tricky_del &&
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test_must_fail git ls-files --error-unmatch arch/x86_64/dir &&
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git ls-files --error-unmatch arch/i386/dir
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'
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test_expect_success SYMLINKS 'do not follow symbolic link (existing)' '
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# existing symbolic link
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git reset --hard &&
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ln -s ../i386/dir arch/x86_64/dir &&
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git add arch/x86_64/dir &&
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test_must_fail git apply add_file.patch 2>error-wt-add &&
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test_i18ngrep "beyond a symbolic link" error-wt-add &&
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test_path_is_missing arch/i386/dir/file &&
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mkdir arch/i386/dir &&
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>arch/i386/dir/file &&
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test_must_fail git apply del_file.patch 2>error-wt-del &&
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test_i18ngrep "beyond a symbolic link" error-wt-del &&
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test_path_is_file arch/i386/dir/file &&
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rm arch/i386/dir/file &&
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test_must_fail git apply --index add_file.patch 2>error-ix-add &&
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test_i18ngrep "beyond a symbolic link" error-ix-add &&
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test_path_is_missing arch/i386/dir/file &&
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test_must_fail git ls-files --error-unmatch arch/i386/dir &&
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test_must_fail git apply --cached add_file.patch 2>error-ct-file &&
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test_i18ngrep "beyond a symbolic link" error-ct-file &&
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test_must_fail git ls-files --error-unmatch arch/i386/dir
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'
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test_done
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