replace

Description:

public abstract FileOutputStream replace (string? etag, bool make_backup, FileCreateFlags flags, Cancellable? cancellable = null) throws Error

Example: Replace file-content (stream-based), sync:

public static int main (string[] args) {
	if (args.length != 2) {
		print ("%s FILE\n", args[0]);
		return 0;
	}

	try {
		File file = File.new_for_commandline_arg (args[1]);
		FileOutputStream ostream = file.replace (null, false, FileCreateFlags.NONE);
		DataOutputStream dostream = new DataOutputStream (ostream);
		dostream.put_string ("my-line\n");
	} catch (Error e) {
		print ("Error: %s\n", e.message);
	}

	return 0;
}

valac --pkg gio-2.0 GLib.File.replace.vala