feat(nargo): print-acir command (#1031)

feat(nargo) print-acir command

crates/nargo/src/cli/mod.rs

@@ -17,6 +17,7 @@ mod execute_cmd;
 mod gates_cmd;
 mod new_cmd;
 mod preprocess_cmd;
+mod print_acir_cmd;
 mod prove_cmd;
 mod test_cmd;
 mod verify_cmd;
@@ -58,6 +59,7 @@ enum NargoCommand {
     Preprocess(preprocess_cmd::PreprocessCommand),
     Test(test_cmd::TestCommand),
     Gates(gates_cmd::GatesCommand),
+    PrintAcir(print_acir_cmd::PrintAcirCommand),
 }
 
 pub fn start_cli() -> eyre::Result<()> {
@@ -79,6 +81,7 @@ pub fn start_cli() -> eyre::Result<()> {
         NargoCommand::Test(args) => test_cmd::run(args, config),
         NargoCommand::Gates(args) => gates_cmd::run(args, config),
         NargoCommand::CodegenVerifier(args) => codegen_verifier_cmd::run(args, config),
+        NargoCommand::PrintAcir(args) => print_acir_cmd::run(args, config),
     }?;
 
     Ok(())

crates/nargo/src/cli/print_acir_cmd.rs

@@ -0,0 +1,29 @@
+use clap::Args;
+use noirc_driver::CompileOptions;
+use std::path::Path;
+
+use crate::cli::compile_cmd::compile_circuit;
+use crate::errors::CliError;
+
+use super::NargoConfig;
+
+/// Prints out the ACIR for a compiled circuit
+#[derive(Debug, Clone, Args)]
+pub(crate) struct PrintAcirCommand {
+    #[clap(flatten)]
+    compile_options: CompileOptions,
+}
+
+pub(crate) fn run(args: PrintAcirCommand, config: NargoConfig) -> Result<(), CliError> {
+    print_acir_with_path(config.program_dir, &args.compile_options)
+}
+
+fn print_acir_with_path<P: AsRef<Path>>(
+    program_dir: P,
+    compile_options: &CompileOptions,
+) -> Result<(), CliError> {
+    let compiled_program = compile_circuit(program_dir.as_ref(), compile_options)?;
+    println!("{}", compiled_program.circuit);
+
+    Ok(())
+}