recursiveDirectoryCopy

fn recursiveDirectoryCopy(f: *Fetch, dir: Io.Dir, tmp_dir: Io.Dir) anyerror!void

File

Code

fn recursiveDirectoryCopy(f: *Fetch, dir: Io.Dir, tmp_dir: Io.Dir) anyerror!void {
    const gpa = f.arena.child_allocator;
    const io = f.job_queue.io;
    // Recursive directory copy.
    var it = try dir.walk(gpa);
    defer it.deinit();
    while (try it.next(io)) |entry| {
        switch (entry.kind) {
            .directory => {}, // omit empty directories
            .file => {
                dir.copyFile(entry.path, tmp_dir, entry.path, io, .{}) catch |err| switch (err) {
                    error.FileNotFound => {
                        if (fs.path.dirname(entry.path)) |dirname| try tmp_dir.createDirPath(io, dirname);
                        try dir.copyFile(entry.path, tmp_dir, entry.path, io, .{});
                    },
                    else => |e| return e,
                };
            },
            .sym_link => {
                var buf: [fs.max_path_bytes]u8 = undefined;
                const link_name = buf[0..try dir.readLink(io, entry.path, &buf)];
                // TODO: if this would create a symlink to outside
                // the destination directory, fail with an error instead.
                tmp_dir.symLink(io, link_name, entry.path, .{}) catch |err| switch (err) {
                    error.FileNotFound => {
                        if (fs.path.dirname(entry.path)) |dirname| try tmp_dir.createDirPath(io, dirname);
                        try tmp_dir.symLink(io, link_name, entry.path, .{});
                    },
                    else => |e| return e,
                };
            },
            else => return error.IllegalFileTypeInPackage,
        }
    }
}