Provide commit message in workflow as action input (BLD-5704)

Author: siong-chin

Diff for: .github/workflows/status_check.yml

@@ -15,3 +15,5 @@ jobs:
         with:
           python-version: "3.7"
       - uses: ccdc-opensource/commit-hooks@jira_bld_5704_jira_id_in_commit_message
+        with:
+          commit-message: ${{ github.event.head_commit.message }}

Diff for: action.yml

@@ -4,8 +4,12 @@ description: Check changed files for compliance
 runs:
   using: "composite"
   steps:
-    - run: python3 $GITHUB_ACTION_PATH/main.py ${{ github.event.head_commit.message }}
+    - run: python3 $GITHUB_ACTION_PATH/main.py
       shell: bash
+inputs:
+  commit-message:
+    description: 'The commit message, ie. ${{ github.event.head_commit.message }}'
+    required: true
 branding:
   icon: 'check-square'
   color: 'green'

Diff for: main.py

@@ -6,6 +6,7 @@
 
 '''
 
+import os
 from pathlib import Path
 import sys
 
@@ -14,7 +15,11 @@
 
 if __name__ == '__main__':
 
-    message = sys.argv[1]
+    for k,v in os.environ.items():
+        if k.startswith('INPUT_'):
+            print(k, v)
+
+    message = ''
     print(f'Commit message: {message}')
 
     print(f'Checking commit {githooks.get_sha()} by {githooks.get_user()} in {githooks.get_branch()}')