Add github action (#295)

.github/workflows/dogfood.yml

@@ -27,4 +27,9 @@ jobs:
         fetch-depth: 0
         ref: ${{ github.head_ref }}
     - name: Dogfood
-      run:  echo $GITHUB_BASE_REF; CGO_ENABLED=0 go run . git file://. --since_commit $GITHUB_BASE_REF
+      uses: ./
+      id: dogfood
+      with:
+        path: ./
+        base: ${{ github.event.repository.default_branch }}
+        head: HEAD

action.yml

@@ -0,0 +1,27 @@
+name: 'TruffleHog'
+description: 'Scan Github Actions with TruffleHog'
+author: Truffle Security Co. <support@trufflesec.com>
+
+inputs:
+  path:
+    description: Repository path
+    required: true
+  base:
+    description: Start scanning from here (usually main branch).
+    required: true
+  head:
+    description: Scan commits until here (usually dev branch).
+    required: false
+branding:
+  icon: "shield"
+  color: "green"
+runs:
+  using: "docker"
+  image: "Dockerfile"
+  args:
+    - git
+    - file://${{ inputs.path }}
+    - --since-commit
+    - ${{ inputs.base }}
+    - --branch
+    - ${{ inputs.head }}

entrypoint.sh

@@ -0,0 +1,4 @@
+#! /usr/bin/env bash
+
+args=("$@")
+/usr/bin/trufflehog ${args[@]}