//===----------------------------------------------------------------------===//
//
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
// See https://llvm.org/LICENSE.txt for license information.
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
//
//===----------------------------------------------------------------------===//
// REQUIRES: can-create-symlinks
// UNSUPPORTED: c++03, c++11, c++14
// UNSUPPORTED: no-filesystem
// UNSUPPORTED: availability-filesystem-missing
// Starting in Android N (API 24), SELinux policy prevents the shell user from
// creating a FIFO file.
// XFAIL: LIBCXX-ANDROID-FIXME && !android-device-api={{21|22|23}}
// <filesystem>
// void copy(const path& from, const path& to);
// void copy(const path& from, const path& to, error_code& ec);
// void copy(const path& from, const path& to, copy_options options);
// void copy(const path& from, const path& to, copy_options options,
// error_code& ec);
#include <filesystem>
#include <type_traits>
#include <cstddef>
#include <cassert>
#include "test_macros.h"
#include "filesystem_test_helper.h"
namespace fs = std::filesystem;
using namespace fs;
using CO = fs::copy_options;
static void signature_test()
{
const path p; ((void)p);
std::error_code ec; ((void)ec);
const copy_options opts{}; ((void)opts);
ASSERT_NOT_NOEXCEPT(fs::copy(p, p));
ASSERT_NOT_NOEXCEPT(fs::copy(p, p, ec));
ASSERT_NOT_NOEXCEPT(copy(p, p, opts));
ASSERT_NOT_NOEXCEPT(copy(p, p, opts, ec));
}
// There are 4 cases is the proposal for absolute path.
// Each scope tests one of the cases.
static void test_error_reporting()
{
auto checkThrow = [](path const& f, path const& t, const std::error_code& ec)
{
#ifndef TEST_HAS_NO_EXCEPTIONS
try {
fs::copy(f, t);
return false;
} catch (filesystem_error const& err) {
return err.path1() == f
&& err.path2() == t
&& err.code() == ec;
}
#else
((void)f); ((void)t); ((void)ec);
return true;
#endif
};
static_test_env static_env;
scoped_test_env env;
const path file = env.create_file("file1", 42);
const path dir = env.create_dir("dir");
#ifndef _WIN32
const path fifo = env.create_fifo("fifo");
assert(is_other(fifo));
#endif
const auto test_ec = GetTestEC();
// !exists(f)
{
std::error_code ec = test_ec;
const path f = static_env.DNE;
const path t = env.test_root;
fs::copy(f, t, ec);
assert(ec);
assert(ec != test_ec);
assert(checkThrow(f, t, ec));
}
{ // equivalent(f, t) == true
std::error_code ec = test_ec;
fs::copy(file, file, ec);
assert(ec);
assert(ec != test_ec);
assert(checkThrow(file, file, ec));
}
{ // is_directory(from) && is_file(to)
std::error_code ec = test_ec;
fs::copy(dir, file, ec);
assert(ec);
assert(ec != test_ec);
assert(checkThrow(dir, file, ec));
}
#ifndef _WIN32
{ // is_other(from)
std::error_code ec = test_ec;
fs::copy(fifo, dir, ec);
assert(ec);
assert(ec != test_ec);
assert(checkThrow(fifo, dir, ec));
}
{ // is_other(to)
std::error_code ec = test_ec;
fs::copy(file, fifo, ec);
assert(ec);
assert(ec != test_ec);
assert(checkThrow(file, fifo, ec));
}
#endif
}
static void from_is_symlink()
{
scoped_test_env env;
const path file = env.create_file("file", 42);
const path symlink = env.create_symlink(file, "sym");
const path dne = env.make_env_path("dne");
{ // skip symlinks
std::error_code ec = GetTestEC();
fs::copy(symlink, dne, copy_options::skip_symlinks, ec);
assert(!ec);
assert(!exists(dne));
}
{
const path dest = env.make_env_path("dest");
std::error_code ec = GetTestEC();
fs::copy(symlink, dest, copy_options::copy_symlinks, ec);
assert(!ec);
assert(exists(dest));
assert(is_symlink(dest));
}
{ // copy symlink but target exists
std::error_code ec = GetTestEC();
fs::copy(symlink, file, copy_options::copy_symlinks, ec);
assert(ec);
assert(ec != GetTestEC());
}
{ // create symlinks but target exists
std::error_code ec = GetTestEC();
fs::copy(symlink, file, copy_options::create_symlinks, ec);
assert(ec);
assert(ec != GetTestEC());
}
}
static void from_is_regular_file()
{
scoped_test_env env;
const path file = env.create_file("file", 42);
const path dir = env.create_dir("dir");
{ // skip copy because of directory
const path dest = env.make_env_path("dest1");
std::error_code ec = GetTestEC();
fs::copy(file, dest, CO::directories_only, ec);
assert(!ec);
assert(!exists(dest));
}
{ // create symlink to file
const path dest = env.make_env_path("sym");
std::error_code ec = GetTestEC();
fs::copy(file, dest, CO::create_symlinks, ec);
assert(!ec);
assert(is_symlink(dest));
assert(equivalent(file, canonical(dest)));
}
{ // create hard link to file
const path dest = env.make_env_path("hardlink");
assert(hard_link_count(file) == 1);
std::error_code ec = GetTestEC();
fs::copy(file, dest, CO::create_hard_links, ec);
assert(!ec);
assert(exists(dest));
assert(hard_link_count(file) == 2);
}
{ // is_directory(t)
const path dest_dir = env.create_dir("dest_dir");
const path expect_dest = dest_dir / file.filename();
std::error_code ec = GetTestEC();
fs::copy(file, dest_dir, ec);
assert(!ec);
assert(is_regular_file(expect_dest));
}
{ // otherwise copy_file(from, to, ...)
const path dest = env.make_env_path("file_copy");
std::error_code ec = GetTestEC();
fs::copy(file, dest, ec);
assert(!ec);
assert(is_regular_file(dest));
}
}
static void from_is_directory()
{
struct FileInfo {
path filename;
std::size_t size;
};
const FileInfo files[] = {
{"file1", 0},
{"file2", 42},
{"file3", 300}
};
scoped_test_env env;
const path dir = env.create_dir("dir");
const path nested_dir_name = "dir2";
const path nested_dir = env.create_dir("dir/dir2");
for (auto& FI : files) {
env.create_file(dir / FI.filename, FI.size);
env.create_file(nested_dir / FI.filename, FI.size);
}
{ // test for non-existent directory
const path dest = env.make_env_path("dest_dir1");
std::error_code ec = GetTestEC();
fs::copy(dir, dest, ec);
assert(!ec);
assert(is_directory(dest));
for (auto& FI : files) {
path created = dest / FI.filename;
assert(is_regular_file(created));
assert(file_size(created) == FI.size);
}
assert(!is_directory(dest / nested_dir_name));
}
{ // test for existing directory
const path dest = env.create_dir("dest_dir2");
std::error_code ec = GetTestEC();
fs::copy(dir, dest, ec);
assert(!ec);
assert(is_directory(dest));
for (auto& FI : files) {
path created = dest / FI.filename;
assert(is_regular_file(created));
assert(file_size(created) == FI.size);
}
assert(!is_directory(dest / nested_dir_name));
}
{ // test recursive copy
const path dest = env.make_env_path("dest_dir3");
std::error_code ec = GetTestEC();
fs::copy(dir, dest, CO::recursive, ec);
assert(!ec);
assert(is_directory(dest));
const path nested_dest = dest / nested_dir_name;
assert(is_directory(nested_dest));
for (auto& FI : files) {
path created = dest / FI.filename;
path nested_created = nested_dest / FI.filename;
assert(is_regular_file(created));
assert(file_size(created) == FI.size);
assert(is_regular_file(nested_created));
assert(file_size(nested_created) == FI.size);
}
}
}
static void test_copy_symlinks_to_symlink_dir()
{
scoped_test_env env;
const path file1 = env.create_file("file1", 42);
const path file2 = env.create_file("file2", 101);
const path file2_sym = env.create_symlink(file2, "file2_sym");
const path dir = env.create_dir("dir");
const path dir_sym = env.create_directory_symlink(dir, "dir_sym");
{
std::error_code ec = GetTestEC();
fs::copy(file1, dir_sym, copy_options::copy_symlinks, ec);
assert(!ec);
const path dest = env.make_env_path("dir/file1");
assert(exists(dest));
assert(!is_symlink(dest));
assert(file_size(dest) == 42);
}
}
static void test_dir_create_symlink()
{
scoped_test_env env;
const path dir = env.create_dir("dir1");
const path dest = env.make_env_path("dne");
{
std::error_code ec = GetTestEC();
fs::copy(dir, dest, copy_options::create_symlinks, ec);
assert(ErrorIs(ec, std::errc::is_a_directory));
assert(!exists(dest));
assert(!is_symlink(dest));
}
{
std::error_code ec = GetTestEC();
fs::copy(dir, dest, copy_options::create_symlinks|copy_options::recursive, ec);
assert(ErrorIs(ec, std::errc::is_a_directory));
assert(!exists(dest));
assert(!is_symlink(dest));
}
}
static void test_otherwise_no_effects_clause()
{
scoped_test_env env;
const path dir = env.create_dir("dir1");
{ // skip copy because of directory
const path dest = env.make_env_path("dest1");
std::error_code ec;
fs::copy(dir, dest, CO::directories_only, ec);
assert(!ec);
assert(!exists(dest));
}
}
int main(int, char**) {
signature_test();
test_error_reporting();
from_is_symlink();
from_is_regular_file();
from_is_directory();
test_copy_symlinks_to_symlink_dir();
test_dir_create_symlink();
test_otherwise_no_effects_clause();
return 0;
}
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