/* * Copyright (c) 2018-2020, Andreas Kling * * SPDX-License-Identifier: BSD-2-Clause */ #include #include #include #include #include #include #include #include struct FileSystem { DeprecatedString fs; size_t total_block_count { 0 }; size_t free_block_count { 0 }; size_t total_inode_count { 0 }; size_t free_inode_count { 0 }; size_t block_size { 0 }; DeprecatedString mount_point; }; ErrorOr serenity_main(Main::Arguments arguments) { bool flag_human_readable = false; bool flag_inode_info = false; Core::ArgsParser args_parser; args_parser.set_general_help("Display free disk space of each partition."); args_parser.add_option(flag_human_readable, "Print human-readable sizes", "human-readable", 'h'); args_parser.add_option(flag_inode_info, "Show inode information as well", "inodes", 'i'); args_parser.parse(arguments); auto file = TRY(Core::Stream::File::open("/sys/kernel/df"sv, Core::Stream::OpenMode::Read)); Vector headers; TRY(headers.try_append(flag_human_readable ? "Size"sv : "Blocks"sv)); TRY(headers.try_append("Used"sv)); TRY(headers.try_append("Available"sv)); TRY(headers.try_append("Used%"sv)); if (flag_inode_info) { TRY(headers.try_append("Inodes"sv)); TRY(headers.try_append("IUsed"sv)); TRY(headers.try_append("IAvailable"sv)); TRY(headers.try_append("IUsed%"sv)); } TRY(headers.try_append("Mount point"sv)); out("{:12} ", "Filesystem"); for (auto& header : headers) out("{:>12} ", header); outln(); auto file_contents = TRY(file->read_until_eof()); auto json_result = TRY(JsonValue::from_string(file_contents)); auto const& json = json_result.as_array(); json.for_each([&](auto& value) { auto& fs_object = value.as_object(); auto fs = fs_object.get("class_name"sv).to_deprecated_string(); auto total_block_count = fs_object.get("total_block_count"sv).to_u64(); auto free_block_count = fs_object.get("free_block_count"sv).to_u64(); auto used_block_count = total_block_count - free_block_count; auto total_inode_count = fs_object.get("total_inode_count"sv).to_u64(); auto free_inode_count = fs_object.get("free_inode_count"sv).to_u64(); auto used_inode_count = total_inode_count - free_inode_count; auto block_size = fs_object.get("block_size"sv).to_u64(); auto mount_point = fs_object.get("mount_point"sv).to_deprecated_string(); auto used_percentage = 100; if (total_block_count != 0) used_percentage = (used_block_count * 100) / total_block_count; auto used_inode_percentage = 100; if (total_inode_count != 0) used_inode_percentage = (used_inode_count * 100) / total_inode_count; out("{:12} ", fs); if (flag_human_readable) { out("{:>12} ", human_readable_size(total_block_count * block_size)); out("{:>12} ", human_readable_size(used_block_count * block_size)); out("{:>12} ", human_readable_size(free_block_count * block_size)); out("{:>11}% ", used_percentage); } else { out("{:>12} ", (uint64_t)total_block_count); out("{:>12} ", (uint64_t)used_block_count); out("{:>12} ", (uint64_t)free_block_count); out("{:>11}% ", used_percentage); } if (flag_inode_info) { if (flag_human_readable) { out("{:>12} ", human_readable_quantity(total_inode_count)); out("{:>12} ", human_readable_quantity(used_inode_count)); out("{:>12} ", human_readable_quantity(free_inode_count)); out("{:>11}% ", used_inode_percentage); } else { out("{:>12} ", (uint64_t)total_inode_count); out("{:>12} ", (uint64_t)used_inode_count); out("{:>12} ", (uint64_t)free_inode_count); out("{:>11}% ", used_inode_percentage); } } out("{}", mount_point); outln(); }); return 0; }