Add mapping of directories to owners as json file

third_party/WebKit/Tools/Scripts/csv_to_json

+#!/usr/bin/python

[qyearsley, 2016/07/20 17:57:09]

Possibly consider a more specific name for the script, e.g.:

 - generate_w3c_directory_owner_map
 - generate_imported_test_owner_map
 - generate_w3c_directory_owner_json
 - generate_imported_test_owner_json
 - convert_imported_test_owner_map

All of these are a bit long, but I'd lead towards being longer and more
specific, just for the benefit of people who come across this script later who
don't have context about what it's for.

+# Copyright 2016 The Chromium Authors. All rights reserved.
+# Use of this source code is governed by a BSD-style license that can be
+# found in the LICENSE file.
+
+"""Converts CSV files to machine-readable JSON.
+
+   Example usage:
+
+   ./csv_to_json input.csv --output directory_owners.json \
+         --skip-keys="Number of tests"

[qyearsley, 2016/07/20 17:57:09]

Could add a backslash at the end of this one (so that it works to copy and paste
this into the terminal)

Also, it's not necessary to indent example usage etc.

+           -f directory number-tests

[qyearsley, 2016/07/20 17:57:09]

Also add "... team notification-email other-contact component", right?

+"""
+
+import argparse
+import csv
+import json
+import sys
+
+
+def main(argv):
+    parser = argparse.ArgumentParser()
+    parser.add_argument('filename', metavar='filename',
+                        help='The path to the input CSV file.')
+    parser.add_argument('-o', '--output',
+                        help='The output file name.')
+    parser.add_argument('-f', '--field-names', nargs='*',
+                        help='The ordered field names of the CSV file. Defaults to first row.')
+    parser.add_argument('-s', '--skip-keys', nargs='*',
+                        help='Fields that should be skipped.')
+    args = parser.parse_args()
+    convert_csv_to_json(args.filename, args.output, args.field_names, args.skip_keys)
+
+
+def convert_csv_to_json(filename, output_filename=None, field_names=None, skip_keys=None):
+    out = output_filename or (filename + '.json')
+    dict_list = []
+    json_file = open(out, 'w')
+    with open(filename) as csv_file:
+        reader = csv.DictReader(csv_file, fieldnames=field_names)
+        for row in reader:
+            if not row['directory'].startswith('imported'):
+                continue
+            if skip_keys:
+                for s in skip_keys:
+                    del row[s]
+            dict_list.append(row)
+        json.dump(dict_list, json_file, indent=4)
+
+
+if __name__ == '__main__':
+    main(sys.argv[1:])