feat: add github action (#101)

Author: QuiiBz

README.md

@@ -38,6 +38,7 @@ We recommend running Sherif in your CI once [all errors are fixed](#autofix). Ru
 <summary>GitHub Actions example</summary>
 
 ```yaml
+# Using the `actions/sherif` action
 name: Sherif
 on:
   pull_request:
@@ -46,8 +47,23 @@ jobs:
     name: Run Sherif
     runs-on: ubuntu-22.04
     steps:
-      - name: Checkout
-        uses: actions/checkout@v4
+      - uses: actions/checkout@v4
+      - uses: actions/sherif@v1
+        # Optionally, you can specify a version and arguments to run Sherif with:
+        # with:
+          # version: '1.0.1'
+          # args: '--ignore-rule root-package-manager-field'
+
+# Using `npx` to run Sherif
+name: Sherif
+on:
+  pull_request:
+jobs:
+  check:
+    name: Run Sherif
+    runs-on: ubuntu-22.04
+    steps:
+      - uses: actions/checkout@v4
       - uses: actions/setup-node@v3
         with:
           node-version: 20

action.yml

@@ -0,0 +1,24 @@
+name: 'Setup Sherif'
+description: 'Setup and run Sherif, an opinionated, zero-config linter for JavaScript monorepos'
+
+inputs:
+  version:
+    description: 'The Sherif version to use (e.g., v1.0.1)'
+    required: false
+    default: 'latest'
+  github-token:
+    description: 'GitHub token for API requests'
+    required: false
+    default: ${{ github.token }}
+  args:
+    description: 'Additional arguments to pass to Sherif'
+    required: false
+    default: ''
+
+runs:
+  using: 'node20'
+  main: 'action/index.js'
+
+branding:
+  icon: 'shield'
+  color: 'orange'