Use verified CLI preparations when web PHP cannot execute processes

tools/demography_workbook.py

@@ -267,7 +267,10 @@ if __name__ == "__main__":
     cli.add_argument("--baseline-year", type=int)
     cli.add_argument("--output", required=True)
     cli.add_argument("--records-output")
+    cli.add_argument("--preparation-receipt")
     args = cli.parse_args()
+    if args.preparation_receipt and not args.records_output:
+        cli.error('--preparation-receipt requires --records-output')
     result = parse(args.file, args.baseline_year)
     if args.records_output:
         record_path = Path(args.records_output)
@@ -276,4 +279,10 @@ if __name__ == "__main__":
                 target.write(json.dumps(record, ensure_ascii=False, separators=(',', ':'))+'\n')
         result['records_file_sha256'] = hashlib.sha256(record_path.read_bytes()).hexdigest()
     Path(args.output).write_text(json.dumps(result, ensure_ascii=False, separators=(",", ":")), encoding="utf-8")
+    if args.preparation_receipt:
+        receipt = dict(sha256=result['sha256'], baseline_year=args.baseline_year,
+                       parser_sha256=hashlib.sha256(Path(__file__).read_bytes()).hexdigest(),
+                       preview_sha256=hashlib.sha256(Path(args.output).read_bytes()).hexdigest(),
+                       records_sha256=result['records_file_sha256'], record_count=result['record_count'])
+        Path(args.preparation_receipt).write_text(json.dumps(receipt, separators=(',', ':')), encoding='utf-8')
     print(json.dumps({k: v for k, v in result.items() if k not in ("records", "issues")}, ensure_ascii=False))