Provide default empty CLA file for read-file action

Author: kenodegard

check-cla/action.py

@@ -23,9 +23,12 @@ def main() -> None:
     args = parse_args()
 
     path = args.cla_path
-    signees = json.loads(path.read_text())
-    signees["contributors"].append(args.contributor)
-    signees["contributors"].sort(key=str.lower)
+    try:
+        signees = json.loads(path.read_text())
+    except FileNotFoundError:
+        signees = []
+    signees.append(args.contributor)
+    signees.sort(key=str.lower)
     path.write_text(json.dumps(signees, indent=2) + "\n")
 
 

check-cla/action.yml

@@ -57,9 +57,10 @@ runs:
       with:
         path: https://raw.githubusercontent.com/${{ inputs.cla_repo }}/main/${{ inputs.cla_path }}
         parser: json
+        default: '[]'
 
     - name: Determine whether the contributor has signed the CLA
-      run: echo HAS_SIGNED=${{ contains(fromJSON(steps.read_cla.outputs.content)['contributors'], env.CONTRIBUTOR) }} >> $GITHUB_ENV
+      run: echo HAS_SIGNED=${{ contains(fromJSON(steps.read_cla.outputs.content), env.CONTRIBUTOR) }} >> $GITHUB_ENV
       shell: bash
 
     # if contributor has already signed, add [cla-signed] label