feat: add install-shellcheck action

Author: thatRichman

.github/actions/install-shellcheck/action.yaml

@@ -0,0 +1,22 @@
+name: Install ShellCheck
+description: "installs shellcheck. Supports: Ubuntu, MacoS, and Windows"
+runs:
+  using: "composite"
+  steps:
+    - name: install shellcheck -- ubuntu-latest
+      if: runner.os == "Linux"
+      uses: awalsh128/cache-apt-pkgs-action@latest
+      with:
+          packages: shellcheck
+          version: 1.0
+    - name: install shellcheck -- macos-latest
+      if: runner.os == "macOS"
+      run: brew install shellcheck
+    - name: install shellcheck -- Windows
+      if: runner.os == "Windows"
+      shell: powershell
+      run: |
+        gh release download -R koalaman/shellcheck -p 'shellcheck-v*.zip' -o shellcheck-latest.zip
+        7z x shellcheck-latest.zip
+        echo $(Get-Location).Path >> "$GITHUB_PATH"
+

.github/workflows/CI.yml

@@ -5,6 +5,7 @@ on:
     branches:
       - main
   pull_request:
+  workflow_dispatch:
 
 jobs:
   format:
@@ -60,6 +61,7 @@ jobs:
         os: [windows-latest, macos-latest, ubuntu-latest]
     steps:
       - uses: actions/checkout@v4
+      - uses: ./.github/actions/install-shellcheck
       - run: git config --global core.autocrlf false
       - name: Update Rust
         run: rustup update stable && rustup default stable
@@ -73,6 +75,7 @@ jobs:
         os: [windows-latest, macos-latest, ubuntu-latest]
     steps:
       - uses: actions/checkout@v4
+      - uses: ./.github/actions/install-shellcheck
       - run: git config --global core.autocrlf false
       - name: Update Rust
         run: rustup update stable && rustup default stable