[experiment] rshell in Rust

.github/workflows/rust.yml

@@ -0,0 +1,61 @@
+name: Rust
+
+on:
+  push:
+    branches: [main]
+  pull_request:
+    branches: [main]
+    paths:
+      - 'rust/**'
+      - '.github/workflows/rust.yml'
+
+permissions:
+  contents: read
+
+jobs:
+  build-test:
+    name: Rust (${{ matrix.os }})
+    runs-on: ${{ matrix.os }}
+    timeout-minutes: 30
+    strategy:
+      fail-fast: false
+      matrix:
+        os: [ubuntu-latest, macos-latest, windows-latest]
+    defaults:
+      run:
+        working-directory: rust
+    steps:
+      - uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd # v6.0.2
+      - name: Cache cargo registry and target
+        uses: actions/cache@668228422ae6a00e4ad889ee87cd7109ec5666a7 # v5.0.4
+        with:
+          path: |
+            ~/.cargo/registry/index
+            ~/.cargo/registry/cache
+            ~/.cargo/git/db
+            rust/target
+          key: ${{ runner.os }}-cargo-${{ hashFiles('rust/Cargo.lock') }}
+          restore-keys: ${{ runner.os }}-cargo-
+      - name: Show toolchain
+        shell: bash
+        run: |
+          rustup show active-toolchain
+          rustc --version
+          cargo --version
+          cargo fmt --version
+          cargo clippy --version
+      - name: Format
+        shell: bash
+        run: cargo fmt --all --check
+      - name: Lint
+        shell: bash
+        run: cargo clippy --all-targets -- -D warnings
+      - name: Build
+        shell: bash
+        run: cargo build --all-targets
+      - name: Test
+        shell: bash
+        run: cargo test --all-targets
+      - name: Symbol-allowlist analysis
+        shell: bash
+        run: cargo run --release -p rshell-analysis

Makefile

@@ -1,4 +1,5 @@
-.PHONY: build fmt test test_all test_against_bash compliance
+.PHONY: build fmt test test_all test_against_bash compliance \
+        rust-build rust-test rust-fmt rust-fmt-check rust-lint rust-all
 
 build:
 	go build -o rshell ./cmd/rshell
@@ -17,3 +18,22 @@ test_against_bash:
 
 compliance:
 	RSHELL_COMPLIANCE_TEST=1 go test -v ./tests/ -run TestCompliance -count=1
+
+# --- Rust port (rust/ subdir) ---
+
+rust-build:
+	cd rust && cargo build --all-targets
+
+rust-test:
+	cd rust && cargo test --all-targets
+
+rust-fmt:
+	cd rust && cargo fmt --all
+
+rust-fmt-check:
+	cd rust && cargo fmt --all --check
+
+rust-lint:
+	cd rust && cargo clippy --all-targets -- -D warnings
+
+rust-all: rust-fmt-check rust-lint rust-build rust-test

rust/.gitignore

@@ -0,0 +1,2 @@
+/target
+**/*.rs.bk