switch to using new crate::build system

crates/fayalite/examples/blinky.rs

@@ -1,7 +1,9 @@
 // SPDX-License-Identifier: LGPL-3.0-or-later
 // See Notices.txt for copyright information
-use clap::Parser;
-use fayalite::{cli, prelude::*};
+use fayalite::{
+    build::{ToArgs, WriteArgs},
+    prelude::*,
+};
 
 #[hdl_module]
 fn blinky(clock_frequency: u64) {
@@ -32,16 +34,22 @@ fn blinky(clock_frequency: u64) {
     connect(led, output_reg);
 }
 
-#[derive(Parser)]
-struct Cli {
+#[derive(clap::Args, Clone, PartialEq, Eq, Hash, Debug)]
+struct ExtraArgs {
     /// clock frequency in hertz
     #[arg(long, default_value = "1000000", value_parser = clap::value_parser!(u64).range(2..))]
     clock_frequency: u64,
-    #[command(subcommand)]
-    cli: cli::Cli,
 }
 
-fn main() -> cli::Result {
-    let cli = Cli::parse();
-    cli.cli.run(blinky(cli.clock_frequency))
+impl ToArgs for ExtraArgs {
+    fn to_args(&self, args: &mut (impl WriteArgs + ?Sized)) {
+        let Self { clock_frequency } = self;
+        args.write_arg(format_args!("--clock-frequency={clock_frequency}"));
+    }
+}
+
+fn main() {
+    BuildCli::main(|_cli, ExtraArgs { clock_frequency }| {
+        Ok(JobParams::new(blinky(clock_frequency), "blinky"))
+    });
 }