88 行
2.3 KiB
Zig
88 行
2.3 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: cp [OPTION]... [-T] SOURCE DEST\n", .{});
|
|
try stdout.print("または: cp [OPTION]... SOURCE... DIRECTORY\n", .{});
|
|
try stdout.print("または: cp [OPTION]... -t DIRECTORY SOURCE...\n", .{});
|
|
try stdout.print("SOURCE から DEST へのコピー、または複数の SOURCE の DIRECTORY へのコピーを行います。\n\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("cp (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);
|
|
}
|
|
}
|
|
|
|
for (option.items) |i| {
|
|
if (i == 'h') {
|
|
try help();
|
|
return;
|
|
}
|
|
if (i == 'v') {
|
|
try ver();
|
|
return;
|
|
}
|
|
}
|
|
|
|
if (fname.items.len != 2) {
|
|
try help();
|
|
return;
|
|
}
|
|
|
|
const in = try fs.cwd().openFile(fname.items[0], .{});
|
|
defer in.close();
|
|
const out = try fs.cwd().createFile(fname.items[1], .{ .read = true });
|
|
defer out.close();
|
|
|
|
var buf: [1024]u8 = undefined;
|
|
while (true) {
|
|
const br = try in.read(buf[0..]);
|
|
if (br == 0) break;
|
|
try out.writeAll(buf[0..br]);
|
|
}
|
|
}
|