jcs.org
Serenity Operating System
1/*
2 * Copyright (c) 2018-2020, Andreas Kling <kling@serenityos.org>
3 *
4 * SPDX-License-Identifier: BSD-2-Clause
5 */
6
7#include <AK/LexicalPath.h>
8#include <LibCore/ArgsParser.h>
9#include <LibCore/DeprecatedFile.h>
10#include <LibCore/System.h>
11#include <LibMain/Main.h>
12#include <stdio.h>
13#include <unistd.h>
14
15ErrorOr<int> serenity_main(Main::Arguments arguments)
16{
17 TRY(Core::System::pledge("stdio rpath wpath cpath fattr chown"));
18
19 bool link = false;
20 auto preserve = Core::DeprecatedFile::PreserveMode::Nothing;
21 bool recursion_allowed = false;
22 bool verbose = false;
23 Vector<StringView> sources;
24 DeprecatedString destination;
25
26 Core::ArgsParser args_parser;
27 args_parser.add_option(link, "Link files instead of copying", "link", 'l');
28 args_parser.add_option({
29 Core::ArgsParser::OptionArgumentMode::Optional,
30 "Preserve a selection of mode, ownership and timestamps. Defaults to all three if the option is present but no list is given.",
31 "preserve",
32 'p',
33 "attributes",
34 [&preserve](StringView s) {
35 if (s.is_empty()) {
36 preserve = Core::DeprecatedFile::PreserveMode::Permissions | Core::DeprecatedFile::PreserveMode::Ownership | Core::DeprecatedFile::PreserveMode::Timestamps;
37 return true;
38 }
39
40 bool values_ok = true;
41
42 s.for_each_split_view(',', SplitBehavior::Nothing, [&](StringView value) {
43 if (value == "mode"sv) {
44 preserve |= Core::DeprecatedFile::PreserveMode::Permissions;
45 } else if (value == "ownership"sv) {
46 preserve |= Core::DeprecatedFile::PreserveMode::Ownership;
47 } else if (value == "timestamps"sv) {
48 preserve |= Core::DeprecatedFile::PreserveMode::Timestamps;
49 } else {
50 warnln("cp: Unknown or unimplemented --preserve attribute: '{}'", value);
51 values_ok = false;
52 }
53 });
54
55 return values_ok;
56 },
57 Core::ArgsParser::OptionHideMode::None,
58 });
59 args_parser.add_option(recursion_allowed, "Copy directories recursively", "recursive", 'R');
60 args_parser.add_option(recursion_allowed, "Same as -R", nullptr, 'r');
61 args_parser.add_option(verbose, "Verbose", "verbose", 'v');
62 args_parser.add_positional_argument(sources, "Source file paths", "source");
63 args_parser.add_positional_argument(destination, "Destination file path", "destination");
64 args_parser.parse(arguments);
65
66 if (has_flag(preserve, Core::DeprecatedFile::PreserveMode::Permissions)) {
67 umask(0);
68 } else {
69 TRY(Core::System::pledge("stdio rpath wpath cpath fattr"));
70 }
71
72 bool destination_is_existing_dir = Core::DeprecatedFile::is_directory(destination);
73
74 for (auto& source : sources) {
75 auto destination_path = destination_is_existing_dir
76 ? DeprecatedString::formatted("{}/{}", destination, LexicalPath::basename(source))
77 : destination;
78
79 auto result = Core::DeprecatedFile::copy_file_or_directory(
80 destination_path, source,
81 recursion_allowed ? Core::DeprecatedFile::RecursionMode::Allowed : Core::DeprecatedFile::RecursionMode::Disallowed,
82 link ? Core::DeprecatedFile::LinkMode::Allowed : Core::DeprecatedFile::LinkMode::Disallowed,
83 Core::DeprecatedFile::AddDuplicateFileMarker::No,
84 preserve);
85
86 if (result.is_error()) {
87 if (result.error().tried_recursing)
88 warnln("cp: -R not specified; omitting directory '{}'", source);
89 else
90 warnln("cp: unable to copy '{}' to '{}': {}", source, destination_path, strerror(result.error().code()));
91 return 1;
92 }
93
94 if (verbose)
95 outln("'{}' -> '{}'", source, destination_path);
96 }
97 return 0;
98}