92 行
2.7 KiB
Zig
92 行
2.7 KiB
Zig
const std = @import("std");
|
|
const fs = std.fs;
|
|
const io = std.io;
|
|
|
|
const version = "1.0.0";
|
|
|
|
fn help() !void {
|
|
const stdof = io.getStdOut().writer();
|
|
var bw = io.bufferedWriter(stdof);
|
|
const stdout = bw.writer();
|
|
|
|
try stdout.print("076 coreutils\n", .{});
|
|
try stdout.print("使用法: touch [OPTION]... FILE...\n", .{});
|
|
try stdout.print("各 FILE のアクセス日時と更新日時を現在時刻に更新します。\n\n", .{});
|
|
try stdout.print("引数 FILE が存在しない場合、 -c または -h オプションが指定されない限り、空ファイルが作成されます。\n\n", .{});
|
|
try stdout.print("FILE 引数に - を指定した場合は、特別な動作となり、標準出力に関係づけられているファイルの日時を変更します。\n\n", .{});
|
|
//try stdout.print("-a アクセス日時のみ変更する\n", .{});
|
|
try stdout.print("-c 既に存在する場合、ファイルを作成しない\n", .{});
|
|
//try stdout.print("-m 変更日時のみ変更する\n", .{});
|
|
try stdout.print("-h ヘルプを表示\n", .{});
|
|
try stdout.print("-v バージョンを表示\n", .{});
|
|
|
|
try bw.flush();
|
|
}
|
|
|
|
fn ver() !void {
|
|
const stdof = io.getStdOut().writer();
|
|
var bw = io.bufferedWriter(stdof);
|
|
const stdout = bw.writer();
|
|
|
|
try stdout.print("touch (076 coreutils) {s}\n", .{version});
|
|
|
|
try bw.flush();
|
|
}
|
|
|
|
pub fn main() !void {
|
|
var gpa = std.heap.GeneralPurposeAllocator(.{}){};
|
|
defer _ = gpa.deinit();
|
|
const alloc = gpa.allocator();
|
|
|
|
var option = std.ArrayList(u8).init(alloc);
|
|
defer option.deinit();
|
|
|
|
var fname = std.ArrayList([]const u8).init(alloc);
|
|
defer fname.deinit();
|
|
|
|
const args = try std.process.argsAlloc(alloc);
|
|
defer std.process.argsFree(alloc, args);
|
|
|
|
for (args, 0..) |arg, i| {
|
|
if (i == 0) continue;
|
|
var m: [1]u8 = [_]u8{'-'};
|
|
if (std.mem.eql(u8, arg[0..1], m[0..])) {
|
|
for (arg, 0..) |a, j| {
|
|
if (j == 0) continue;
|
|
try option.append(a);
|
|
}
|
|
} else {
|
|
try fname.append(arg);
|
|
}
|
|
}
|
|
|
|
var iscreate: bool = true;
|
|
for (option.items) |i| {
|
|
if (i == 'h') {
|
|
try help();
|
|
return;
|
|
}
|
|
if (i == 'v') {
|
|
try ver();
|
|
return;
|
|
}
|
|
if (i == 'c') {
|
|
iscreate = false;
|
|
}
|
|
}
|
|
|
|
if (fname.items.len == 0) {
|
|
try help();
|
|
return;
|
|
}
|
|
|
|
for (fname.items) |item| {
|
|
if (iscreate) {
|
|
const file = try fs.cwd().createFile(item, .{ .read = true });
|
|
defer file.close();
|
|
|
|
try file.writeAll("");
|
|
}
|
|
}
|
|
}
|