xtask: Move efuse generator behind a feature

This prevents Python being necessary to build the xtask binary for other
purposes.

Author: kyrias

.cargo/config.toml

@@ -1,3 +1,4 @@
 [alias]
 xtask = "run --package xtask --"
+xgenerate-efuse-fields = "run --package xtask --features=efuse-generator -- generate-efuse-fields"
 xrun = "run --package espflash --"

.github/workflows/ci.yml

@@ -123,7 +123,7 @@ jobs:
       - uses: actions/checkout@v4
       - uses: dtolnay/rust-toolchain@stable
 
-      - run: cargo check -p xtask
+      - run: cargo check -p xtask --all-features
 
   # --------------------------------------------------------------------------
   # Test

.github/workflows/hil.yml

@@ -43,7 +43,7 @@ jobs:
       - name: Install dependencies
         env:
           DEBIAN_FRONTEND: noninteractive
-        run: apt-get update && apt-get -y install curl musl-tools pkg-config python3-dev python3-intelhex python3-reedsolo python3-rich-click
+        run: apt-get update && apt-get -y install curl musl-tools pkg-config
 
       - name: Install toolchain
         run: |

xtask/Cargo.toml

@@ -4,11 +4,14 @@ version = "0.0.0"
 edition = "2024"
 publish = false
 
+[features]
+efuse-generator = ["pyo3"]
+
 [dependencies]
 chrono     = "0.4"
 clap       = { version = "4.5", features = ["derive"] }
 env_logger = "0.11"
 log        = "0.4"
-pyo3       = { version = "0.27.1", features = ["auto-initialize"] }
+pyo3       = { version = "0.27.1", features = ["auto-initialize"], optional = true }
 serde      = { version = "1.0", features = ["derive"] }
 serde_yaml = "0.9"

xtask/src/main.rs

@@ -3,6 +3,7 @@ use std::{env, path::PathBuf};
 use clap::Parser;
 
 // Import modules
+#[cfg(feature = "efuse-generator")]
 mod efuse_generator;
 mod test_runner;
 
@@ -15,6 +16,7 @@ pub type Result<T> = std::result::Result<T, Box<dyn std::error::Error>>;
 #[derive(Debug, Parser)]
 enum Cli {
     /// Generate eFuse field definitions
+    #[cfg(feature = "efuse-generator")]
     GenerateEfuseFields(efuse_generator::GenerateEfuseFieldsArgs),
 
     /// Run espflash tests
@@ -49,6 +51,7 @@ fn main() -> Result<()> {
     };
 
     match Cli::parse() {
+        #[cfg(feature = "efuse-generator")]
         Cli::GenerateEfuseFields(args) => efuse_generator::generate_efuse_fields(&workspace, args),
         Cli::RunTests(args) => test_runner::run_tests(&workspace, args),
     }