2023-07-08 23:58:54 +09:00
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const std = @import("std");
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const fs = std.fs;
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const io = std.io;
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2023-07-09 12:01:17 +09:00
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const version = @import("version.zig").version;
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2023-07-08 23:58:54 +09:00
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fn help() !void {
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const stdof = io.getStdOut().writer();
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var bw = io.bufferedWriter(stdof);
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const stdout = bw.writer();
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try stdout.print("076 coreutils\n", .{});
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try stdout.print("使用法: rm [オプション]... [ファイル]...\n\n", .{});
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try stdout.print("FILE を削除 (unlink) します。\n\n", .{});
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try stdout.print("-f 存在しないファイルを無視する。確認も行わない\n", .{});
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try stdout.print("-i 削除の前に確認を行う\n", .{});
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try stdout.print("-n 出力しない\n", .{});
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try stdout.print("-r ディレクトリとその中身を再帰的に削除する\n", .{});
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try stdout.print("-h ヘルプを表示\n", .{});
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try stdout.print("-v バージョンを表示\n", .{});
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try bw.flush();
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}
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fn ver() !void {
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const stdof = io.getStdOut().writer();
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var bw = io.bufferedWriter(stdof);
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const stdout = bw.writer();
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try stdout.print("rm (076 coreutils) {s}\n", .{version});
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try bw.flush();
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}
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pub fn main() !void {
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var gpa = std.heap.GeneralPurposeAllocator(.{}){};
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defer _ = gpa.deinit();
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const alloc = gpa.allocator();
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var option = std.ArrayList(u8).init(alloc);
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defer option.deinit();
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var fname = std.ArrayList([]const u8).init(alloc);
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defer fname.deinit();
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const args = try std.process.argsAlloc(alloc);
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defer std.process.argsFree(alloc, args);
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for (args, 0..) |arg, i| {
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if (i == 0) continue;
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var m: [1]u8 = [_]u8{'-'};
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if (std.mem.eql(u8, arg[0..1], m[0..])) {
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for (arg, 0..) |a, j| {
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if (j == 0) continue;
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try option.append(a);
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}
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} else {
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try fname.append(arg);
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}
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}
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var isforce: bool = false;
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var ischeck: bool = false;
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var isigout: bool = false;
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var isrecur: bool = false;
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for (option.items) |i| {
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if (i == 'h') {
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try help();
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return;
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}
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if (i == 'v') {
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try ver();
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return;
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}
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if (i == 'f') {
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isforce = true;
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}
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if (i == 'i') {
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ischeck = true;
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}
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if (i == 'n') {
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isigout = true;
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}
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if (i == 'r') {
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isrecur = true;
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}
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}
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if (fname.items.len == 0) {
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try help();
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return;
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}
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for (fname.items) |item| {
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const stdof = io.getStdOut().writer();
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var bw = io.bufferedWriter(stdof);
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const stdout = bw.writer();
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const file_result = fs.cwd().openFile(item, .{});
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if (file_result) |*file| {
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defer file.close();
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const stat = try file.stat();
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if (stat.kind != .File) {
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if (isrecur) {
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if (ischeck) {
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try stdout.print("rm: ディレクトリ '{s}' を削除しますか?\n", .{item});
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try bw.flush();
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if (!(try condel())) continue;
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}
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try fs.cwd().deleteTree(item);
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if (!isigout) {
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try stdout.print("rm: ディレクトリ '{s}' を削除しました。\n", .{item});
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}
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} else {
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try stdout.print("rm: '{s}' を削除できません: ディレクトリです\n", .{item});
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}
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} else {
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if (ischeck) {
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try stdout.print("rm: 通常ファイル '{s}' を削除しますか?\n", .{item});
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try bw.flush();
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if (!(try condel())) continue;
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}
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try fs.cwd().deleteFile(item);
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if (!isigout) {
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try stdout.print("rm: ファイル '{s}' を削除しました。\n", .{item});
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}
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}
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try bw.flush();
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} else |_| {
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if (!isforce) {
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try stdout.print("rm: '{s}' を削除できません: そのようなファイルやディレクトリはありません\n", .{item});
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try bw.flush();
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}
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continue;
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}
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}
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}
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fn condel() !bool {
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const stdin = io.getStdIn();
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var buf = io.bufferedReader(stdin.reader());
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var r = buf.reader();
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var cbuf: [10]u8 = undefined;
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var input = try r.readUntilDelimiterOrEof(&cbuf, '\n');
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var ly: [1]u8 = [_]u8{'y'};
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var uy: [1]u8 = [_]u8{'Y'};
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if (input) |i| {
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return (std.mem.eql(u8, i[0..1], &ly) or std.mem.eql(u8, i[0..1], &uy));
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} else {
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return false;
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}
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}
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