Adding in explicit no_fail input and check

Author: kellydunn

action.yml

@@ -14,6 +14,10 @@ inputs:
   head:
     description: Scan commits until here (usually dev branch).
     required: false
+  no_fail:
+    description: When set, trufflehog does not exit with a 183 code when a credential is found.
+    required: false
+    default: ''
   extra_args:
     default: ""
     description: Extra args to be passed to the trufflehog cli.
@@ -34,6 +38,7 @@ runs:
   using: "composite"
   steps:
     - shell: bash
+      id: trufflehog
       working-directory: ${{ inputs.path }}
       env:
         BASE: ${{ inputs.base }}
@@ -96,6 +101,14 @@ runs:
         fi
       fi
       ##########################################
+      ##      Determine additional args       ##
+      ##########################################
+      if [ -n "$NO_FAIL" ]; then
+        FAIL=""
+      else
+        FAIL="--fail"
+      fi
+      ##########################################
       ##          Run TruffleHog              ##
       ##########################################
       results=$(docker run --rm -v ${{ github.workspace }}:/tmp -w /tmp \
@@ -105,6 +118,7 @@ runs:
       ${BASE:-''} \
       --branch \
       ${HEAD:-''} \
+      ${FAIL} \
       --no-update \
       --github-actions \
       ${ARGS:-''})