ci: optimize CI/CD workflow

- Add specific Clippy lints to match local development
- Pin Rust toolchain version to 1.70.0
- Enhance caching strategy for faster builds
- Fix target specification in toolchain installation
- Add RUSTFLAGS for consistent linting across environments

.github/workflows/build.yml

@@ -15,6 +15,8 @@ env:
   CARGO_TERM_COLOR: always
   RUST_BACKTRACE: 1
   CARGO_NET_RETRY: 2
+  RUSTFLAGS: "-D warnings -D clippy::redundant-pattern-matching -D clippy::needless-borrows-for-generic-args"
+  RUST_VERSION: "1.70.0"
 
 permissions:
   contents: read
@@ -30,6 +32,7 @@ jobs:
         uses: dtolnay/rust-toolchain@stable
         with:
           components: rustfmt, clippy
+          toolchain: ${{ env.RUST_VERSION }}
 
       - name: Cache cargo registry
         uses: actions/cache@v3
@@ -38,13 +41,20 @@ jobs:
             ~/.cargo/registry
             ~/.cargo/git
             target
-          key: ${{ runner.os }}-cargo-lint-${{ hashFiles('**/Cargo.lock') }}
+            ~/.rustup
+          key: ${{ runner.os }}-cargo-${{ hashFiles('**/Cargo.lock', '**/Cargo.toml', 'rust-toolchain.toml') }}
+          restore-keys: |
+            ${{ runner.os }}-cargo-
       
       - name: Check formatting
         run: cargo fmt --all -- --check
 
       - name: Run clippy
-        run: cargo clippy --all-targets --all-features -- -D warnings
+        run: |
+          cargo clippy --all-targets --all-features -- \
+            -D warnings \
+            -D clippy::redundant-pattern-matching \
+            -D clippy::needless-borrows-for-generic-args
       
       - name: Install cargo-deny
         run: cargo install --locked cargo-deny
@@ -107,14 +117,23 @@ jobs:
     - name: Checkout repository
       uses: actions/checkout@v4
 
+    - name: Install Rust toolchain
+      uses: dtolnay/rust-toolchain@stable
+      with:
+        target: ${{ matrix.target }}
+        toolchain: ${{ env.RUST_VERSION }}
+
     - name: Cache cargo registry
       uses: actions/cache@v3
       with:
         path: |
           ~/.cargo/registry
           ~/.cargo/git
           target
-        key: ${{ runner.os }}-cargo-${{ hashFiles('**/Cargo.lock') }}
+          ~/.rustup
+        key: ${{ runner.os }}-${{ matrix.target }}-cargo-${{ hashFiles('**/Cargo.lock', '**/Cargo.toml', 'rust-toolchain.toml') }}
+        restore-keys: |
+          ${{ runner.os }}-${{ matrix.target }}-cargo-
 
     - name: Cache cargo bin
       uses: actions/cache@v3
@@ -137,11 +156,6 @@ jobs:
         # Set environment variable for tests to use the template
         echo "GIT_CONFIG_GLOBAL=/tmp/git-template/config" >> $GITHUB_ENV
 
-    - name: Install Rust toolchain
-      uses: dtolnay/rust-toolchain@stable
-      with:
-        targets: ${{ matrix.target }}
-
     - name: Install cross (if needed)
       if: matrix.use_cross
       run: cargo install cross

src/cli/mod.rs

@@ -145,13 +145,13 @@ mod tests {
 
     #[test]
     fn test_list_command_parsing() {
-        let cli = Cli::try_parse_from(&["essex", "list"]).unwrap();
+        let cli = Cli::try_parse_from(["essex", "list"]).unwrap();
         assert!(matches!(cli.command, Commands::List));
     }
 
     #[test]
     fn test_new_command_parsing() {
-        let cli = Cli::try_parse_from(&[
+        let cli = Cli::try_parse_from([
             "essex",
             "new",
             "basic",
@@ -181,7 +181,7 @@ mod tests {
 
     #[test]
     fn test_completion_command_parsing() {
-        let cli = Cli::try_parse_from(&["essex", "completion", "bash"]).unwrap();
+        let cli = Cli::try_parse_from(["essex", "completion", "bash"]).unwrap();
         match cli.command {
             Commands::Completion { shell, output } => {
                 assert!(matches!(shell, Shell::Bash));
@@ -193,7 +193,7 @@ mod tests {
 
     #[test]
     fn test_validate_template() {
-        let cli = Cli::try_parse_from(&["essex", "new", "basic", "test/project"]).unwrap();
+        let cli = Cli::try_parse_from(["essex", "new", "basic", "test/project"]).unwrap();
         match cli.command {
             Commands::New {
                 template, project, ..

tests/basic_template_test.rs

@@ -6,10 +6,11 @@ use tempfile::TempDir;
 
 fn setup_git_config(project_dir: &PathBuf) {
     // Try local config first
-    if let Err(_) = StdCommand::new("git")
+    if StdCommand::new("git")
         .args(["config", "--local", "user.email", "test@example.com"])
         .current_dir(project_dir)
         .output()
+        .is_err()
     {
         // Fallback to global config if local fails
         StdCommand::new("git")