feat: add a new subcommand for tx simulation

Cargo.lock

@@ -8,6 +8,9 @@ version = "0.0.12"
 dependencies = [
  "anyhow",
  "clap",
+ "hex",
+ "pallas-primitives 0.13.2",
+ "pallas-traverse",
  "uplc",
 ]
 
@@ -46,6 +49,12 @@ version = "0.2.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "6107fe1be6682a68940da878d9e9f5e90ca5745b3dec9fd1bb393c8777d4f581"
 
+[[package]]
+name = "bech32"
+version = "0.8.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "cf9ff0bbfd639f15c74af777d81383cf53efb7c93613f6cab67c6c11e05bbf8b"
+
 [[package]]
 name = "bech32"
 version = "0.9.0"
@@ -300,6 +309,20 @@ version = "6.0.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "029d8d0b2f198229de29dca79676f2738ff952edf3fde542eb8bf94d8c21b435"
 
+[[package]]
+name = "pallas-addresses"
+version = "0.13.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "712ead72b4f40d09f1c8660c47340489862754609cc2d587f24874ce55e51492"
+dependencies = [
+ "base58",
+ "bech32 0.8.1",
+ "hex",
+ "pallas-codec 0.13.2",
+ "pallas-crypto 0.13.2",
+ "thiserror",
+]
+
 [[package]]
 name = "pallas-codec"
 version = "0.12.0"
@@ -309,6 +332,15 @@ dependencies = [
  "minicbor 0.17.1",
 ]
 
+[[package]]
+name = "pallas-codec"
+version = "0.13.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "1758a68b9b2332a24403cf484ea2dd05dd14cceeb6f7b63cb8d11137865fb4cf"
+dependencies = [
+ "minicbor 0.17.1",
+]
+
 [[package]]
 name = "pallas-crypto"
 version = "0.12.0"
@@ -317,7 +349,20 @@ checksum = "051226367cd851895c73e3115d378b58495ade1ee60c3a154c0d0c30554565fa"
 dependencies = [
  "cryptoxide",
  "hex",
- "pallas-codec",
+ "pallas-codec 0.12.0",
+ "rand_core",
+ "thiserror",
+]
+
+[[package]]
+name = "pallas-crypto"
+version = "0.13.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "e17a13efbe2609916de03c063d5bbef840616b02c658f3db5222785a18b63362"
+dependencies = [
+ "cryptoxide",
+ "hex",
+ "pallas-codec 0.13.2",
  "rand_core",
  "thiserror",
 ]
@@ -329,15 +374,45 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "97a0fcc7d5a7120bc2b2e203ec5e7f8088107c500c0eb665569d0e77a910d3c0"
 dependencies = [
  "base58",
- "bech32",
+ "bech32 0.9.0",
  "hex",
  "log",
- "pallas-codec",
+ "pallas-codec 0.12.0",
- "pallas-crypto",
+ "pallas-crypto 0.12.0",
  "serde",
  "serde_json",
 ]
 
+[[package]]
+name = "pallas-primitives"
+version = "0.13.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "24f8d900bac04b711d2c4b21e906680224efd02d312a87ce25e688595b91d1fc"
+dependencies = [
+ "base58",
+ "bech32 0.9.0",
+ "hex",
+ "log",
+ "pallas-codec 0.13.2",
+ "pallas-crypto 0.13.2",
+ "serde",
+ "serde_json",
+]
+
+[[package]]
+name = "pallas-traverse"
+version = "0.13.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "0549db2f8bbaf22d13fc35791dd50fb13a50a1290a342a98929c8ce6c422ed86"
+dependencies = [
+ "hex",
+ "pallas-addresses",
+ "pallas-codec 0.13.2",
+ "pallas-crypto 0.13.2",
+ "pallas-primitives 0.13.2",
+ "thiserror",
+]
+
 [[package]]
 name = "peg"
 version = "0.8.0"
@@ -647,8 +722,8 @@ dependencies = [
  "flat-rs",
  "hex",
  "minicbor 0.18.0",
- "pallas-codec",
+ "pallas-codec 0.12.0",
- "pallas-primitives",
+ "pallas-primitives 0.12.0",
  "peg",
  "pretty",
  "proptest",

crates/cli/Cargo.toml

@@ -13,4 +13,7 @@ authors = ["Lucas Rosa <x@rvcas.dev>", "Kasey White <kwhitemsg@gmail.com>"]
 [dependencies]
 anyhow = "1.0.57"
 clap = { version = "3.1.14", features = ["derive"] }
+hex = "0.4.3"
+pallas-primitives = "0.13.2"
+pallas-traverse = "0.13.2"
 uplc = { path = '../uplc', version = "0.0.12" }

crates/cli/src/args.rs

@@ -7,11 +7,25 @@ use clap::{Parser, Subcommand};
 #[clap(version, about, long_about = None)]
 #[clap(propagate_version = true)]
 pub enum Args {
+    /// A subcommand for working with transactions
+    #[clap(subcommand)]
+    Tx(TxCommand),
     /// A subcommand for working with Untyped Plutus Core
     #[clap(subcommand)]
     Uplc(UplcCommand),
 }
 
+/// Commands for working with transactions
+#[derive(Subcommand)]
+pub enum TxCommand {
+    /// Simulate a transaction by evaluating it's script
+    Simulate {
+        input: PathBuf,
+        #[clap(short, long)]
+        cbor: bool,
+    },
+}
+
 /// Commands for working with Untyped Plutus Core
 #[derive(Subcommand)]
 pub enum UplcCommand {

crates/cli/src/main.rs

@@ -1,5 +1,6 @@
 use std::{fmt::Write as _, fs};
 
+use pallas_traverse::{Era, MultiEraTx};
 use uplc::{
     ast::{DeBruijn, FakeNamedDeBruijn, Name, NamedDeBruijn, Program, Term},
     machine::cost_model::ExBudget,
@@ -8,13 +9,29 @@ use uplc::{
 
 mod args;
 
-use args::{Args, UplcCommand};
+use args::{Args, TxCommand, UplcCommand};
 
 fn main() -> anyhow::Result<()> {
     let args = Args::default();
 
     match args {
-        Args::Uplc(uplc) => match uplc {
+        Args::Tx(tx_cmd) => match tx_cmd {
+            TxCommand::Simulate { input, cbor } => {
+                let tx_bytes = if cbor {
+                    fs::read(input)?
+                } else {
+                    let cbor_hex = fs::read_to_string(input)?;
+
+                    hex::decode(cbor_hex)?
+                };
+
+                let tx = MultiEraTx::decode(Era::Alonzo, &tx_bytes)
+                    .or_else(|_| MultiEraTx::decode(Era::Byron, &tx_bytes))?;
+
+                println!("{:?}", tx);
+            }
+        },
+        Args::Uplc(uplc_cmd) => match uplc_cmd {
             UplcCommand::Flat { input, print, out } => {
                 let code = std::fs::read_to_string(&input)?;