keyfork-derive-key: slim dependencies and formats

Cargo.lock

@@ -876,17 +876,10 @@ dependencies = [
 name = "keyfork-derive-key"
 version = "0.1.0"
 dependencies = [
- "bincode",
- "clap",
- "ed25519-dalek",
  "keyfork-derive-util",
- "keyfork-frame",
- "keyfork-slip10-test-data",
- "keyforkd",
  "keyforkd-client",
- "tempdir",
+ "smex",
  "thiserror",
- "tokio",
 ]
 
 [[package]]

keyfork-derive-key/Cargo.toml

@@ -6,16 +6,7 @@ edition = "2021"
 # See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html
 
 [dependencies]
-bincode = { version = "1.3.3", default-features = false }
-clap = { version = "4.4.2", default-features = false, features = ["std", "usage", "help", "derive"] }
 keyfork-derive-util = { version = "0.1.0", path = "../keyfork-derive-util" }
-keyfork-frame = { version = "0.1.0", path = "../keyfork-frame", default-features = false }
 keyforkd-client = { version = "0.1.0", path = "../keyforkd-client" }
+smex = { version = "0.1.0", path = "../smex" }
 thiserror = "1.0.48"
-
-[dev-dependencies]
-ed25519-dalek = "2.0.0"
-keyfork-slip10-test-data = { path = "../keyfork-slip10-test-data" }
-keyforkd = { path = "../keyforkd", default-features = false }
-tempdir = "0.3.7"
-tokio = { version = "1.32.0", features = ["rt", "rt-multi-thread"] }

keyfork-derive-key/src/cli.rs

@@ -1,23 +0,0 @@
-use clap::Parser;
-use keyfork_derive_util::{
-    request::{DerivationAlgorithm, DerivationRequest, DerivationResponse},
-    DerivationPath,
-};
-use keyforkd_client::{Client, Result};
-
-#[derive(Parser, Clone, Debug)]
-pub struct Command {
-    #[arg(long)]
-    pub path: DerivationPath,
-
-    #[arg(long)]
-    pub algorithm: DerivationAlgorithm,
-}
-
-impl Command {
-    pub fn handle(&self) -> Result<DerivationResponse> {
-        let mut client = Client::discover_socket()?;
-        let request = DerivationRequest::new(self.algorithm.clone(), &self.path);
-        client.request(&request)
-    }
-}

keyfork-derive-key/src/lib.rs

@@ -1,15 +0,0 @@
-pub mod cli;
-
-#[derive(Debug, thiserror::Error)]
-pub enum Error {
-    #[error("The first argument to the command should be a derivation path")]
-    Args,
-
-    #[error("The given path was incorrectly formatted: {0}")]
-    ArgsFormat(#[from] keyfork_derive_util::path::Error),
-
-    #[error("Unable to perform key derivation request: {0}")]
-    KeyforkdClient(#[from] keyforkd_client::Error),
-}
-
-pub type Result<T, E = Error> = std::result::Result<T, E>;

keyfork-derive-key/src/main.rs

@@ -1,10 +1,44 @@
-use clap::Parser;
+use std::{env, str::FromStr};
 
-#[allow(clippy::wildcard_imports)]
-use keyfork_derive_key::*;
+use keyfork_derive_util::{
+    request::{DerivationAlgorithm, DerivationError, DerivationRequest},
+    DerivationPath,
+};
+use keyforkd_client::Client;
 
-fn main() -> Result<()> {
-    let args = cli::Command::parse();
-    args.handle()?;
+#[derive(Debug, thiserror::Error)]
+pub enum Error {
+    #[error("Could not parse the given algorithm {0:?}: {1}")]
+    AlgoFormat(String, DerivationError),
+
+    #[error("Could not parse the given path: {0}")]
+    PathFormat(#[from] keyfork_derive_util::path::Error),
+
+    #[error("Unable to perform key derivation request: {0}")]
+    KeyforkdClient(#[from] keyforkd_client::Error),
+}
+
+pub type Result<T, E = Error> = std::result::Result<T, E>;
+
+fn validate(algo: &str, path: &str) -> Result<(DerivationAlgorithm, DerivationPath)> {
+    let algo =
+        DerivationAlgorithm::from_str(algo).map_err(|e| Error::AlgoFormat(algo.to_string(), e))?;
+    let path = DerivationPath::from_str(path)?;
+    Ok((algo, path))
+}
+
+fn main() -> Result<(), Box<dyn std::error::Error>> {
+    let mut args = env::args();
+    let program_name = args.next().expect("program name");
+    let args = args.collect::<Vec<_>>();
+    let (algo, path) = match args.as_slice() {
+        [algo, path] => validate(algo, path)?,
+        _ => panic!("Usage: {program_name} algorithm path"),
+    };
+
+    let mut client = Client::discover_socket()?;
+    let request = DerivationRequest::new(algo, &path);
+    let response = client.request(&request)?;
+    println!("{}", smex::encode(&response.data));
     Ok(())
 }