51 lines
1.5 KiB
C++
51 lines
1.5 KiB
C++
#include <luna/PathParser.h>
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#include <os/ArgumentParser.h>
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#include <os/File.h>
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#include <os/FileSystem.h>
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using os::File;
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Result<int> luna_main(int argc, char** argv)
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{
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StringView source;
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StringView destination;
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bool verbose { false };
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os::ArgumentParser parser;
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parser.add_description("Copy files or directories."_sv);
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parser.add_system_program_info("cp"_sv);
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parser.add_positional_argument(source, "source"_sv, true);
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parser.add_positional_argument(destination, "destination"_sv, true);
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parser.add_switch_argument(verbose, 'v', "verbose"_sv, "show more information"_sv);
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parser.parse(argc, argv);
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SharedPtr<File> source_file = TRY(os::File::open(source, File::ReadOnly));
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SharedPtr<File> destination_file;
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struct stat st;
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TRY(os::FileSystem::stat(source_file->fd(), st, true));
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umask(0);
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if (os::FileSystem::is_directory(destination, true))
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{
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auto basename = TRY(PathParser::basename(source));
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auto path = TRY(PathParser::join_paths(destination, basename.view()));
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destination_file = TRY(File::open_or_create(path.view(), File::ReadWrite, st.st_mode & ~S_IFMT));
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}
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else
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destination_file = TRY(File::open_or_create(destination, File::ReadWrite, st.st_mode & ~S_IFMT));
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if (verbose) os::eprintln("copying %s to %s", source.chars(), destination.chars());
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auto buf = TRY(Buffer::create_sized(4096));
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while (1)
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{
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TRY(source_file->read(buf, 4096));
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if (buf.is_empty()) break;
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destination_file->write(buf);
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}
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return 0;
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}
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