improve cargo-machete script

.pre-commit-config.yaml

@@ -75,6 +75,14 @@ repos:
     types: [rust]
     args: [--]
 
+  - id: cargo-machete
+    name: cargo machete
+    description: Check for unused Rust dependencies
+    entry: ./tools/run_cargo_machete.sh
+    language: system
+    types: [rust]
+    pass_filenames: false
+
   - id: cargo-check-default
     name: cargo check (default)
     description: Check the package for errors with default features.
@@ -110,15 +118,6 @@ repos:
     types: [rust]
     pass_filenames: false
 
-  - id: cargo-machete
-    name: cargo machete
-    description: Check for unused Rust dependencies
-    entry: cargo machete
-    language: system
-    types: [rust]
-    pass_filenames: false
-    args: [--with-metadata]
-
 - repo: https://github.com/abravalheri/validate-pyproject
   rev: v0.19
   hooks:

tools/run_cargo_machete.sh

@@ -0,0 +1,20 @@
+#!/bin/bash
+
+# ANSI color codes
+RED='\033[0;31m'
+YELLOW='\033[1;33m'
+GREEN='\033[0;32m'
+NC='\033[0m' # No Color
+
+# Check if cargo-machete is installed
+if ! command -v cargo-machete &> /dev/null
+then
+    echo -e "${RED}Error: cargo-machete could not be found${NC}"
+    echo -e "${YELLOW}To install, run: ${GREEN}cargo install cargo-machete${NC}"
+    echo -e "${YELLOW}For more information, visit: ${GREEN}https://github.com/bnjbvr/cargo-machete${NC}"
+    exit 1
+fi
+
+# Run cargo-machete with the --with-metadata flag
+echo -e "${GREEN}Running cargo-machete...${NC}"
+cargo machete --with-metadata