build: clean up scripts folder, move release scripts, move zip manifest logic (#18945)

* build: move zip manifest logic in zip_manifests dir

* build: remove unused get-version.py script

* chore: move all release/sudowoodo related scripts into script/releases

* chore: update paths to zip manifests in CI configs

* build: fix path to ci release build script for arm tests

script/release/merge-electron-checksums.py

@@ -0,0 +1,47 @@
+#!/usr/bin/env python
+
+# Download individual checksum files for Electron zip files from S3,
+# concatenate them, and upload to GitHub.
+
+from __future__ import print_function
+
+import argparse
+import os
+import sys
+
+sys.path.append(os.path.dirname(os.path.abspath(__file__)) + "/..")
+
+from lib.config import s3_config
+from lib.util import boto_path_dirs
+
+sys.path.extend(boto_path_dirs())
+from boto.s3.connection import S3Connection
+
+
+def main():
+  args = parse_args()
+
+  bucket_name, access_key, secret_key = s3_config()
+  s3 = S3Connection(access_key, secret_key)
+  bucket = s3.get_bucket(bucket_name)
+  if bucket is None:
+    print('S3 bucket "{}" does not exist!'.format(bucket_name), file=sys.stderr)
+    return 1
+
+  prefix = 'atom-shell/tmp/{0}/'.format(args.version)
+  shasums = [s3_object.get_contents_as_string().strip()
+             for s3_object in bucket.list(prefix, delimiter='/')
+             if s3_object.key.endswith('.sha256sum')]
+  print('\n'.join(shasums))
+  return 0
+
+
+def parse_args():
+  parser = argparse.ArgumentParser(description='Upload SHASUMS files to GitHub')
+  parser.add_argument('-v', '--version', help='Specify the version',
+                      required=True)
+  return parser.parse_args()
+
+
+if __name__ == '__main__':
+  sys.exit(main())