Add sorting script

sort-redir.py

@@ -0,0 +1,59 @@
+# Python 3 script to sort .openpublishing.redirection.json by any of the fields
+# Requires a Python 3 installation on your computer, see https://www.python.org/downloads
+#
+# Usage:
+#    python sort-redir.py <options>
+#
+# Options:
+#    -i <inputfile> specifies the input file; default is .openpublishing.redirection.json
+#    -o <outputfile> specifies the output file: default is .openpublishing.redirection.sorted.json
+#    -s <sortfield> specifies the name of the field to sort by; default is source_path. Can also use redirect_url
+
+import sys
+import getopt
+import json
+
+def main(argv):
+    # Arg defaults
+    in_file = '.openpublishing.redirection.json'
+    out_file = '.openpublishing.redirection.sorted.json'
+    sort_field = 'source_path'
+    usage_string = 'python sort-redir.py [-i <inputfile>] [-o <outputfile>] [-s <sortfield>] [-h] [-?]'
+
+    # Process arguments if provided
+    try:
+        opts, args = getopt.getopt(argv, "i:o:s:h?") #, ["inputfile=", "outputfile=", "sortfield="]
+    except getopt.GetoptError:
+        print(usage_string)
+        sys.exit(2)
+
+    for opt, arg in opts:
+        if opt == '-h' or opt == '-?':
+            print(usage_string)
+            sys.exit()
+        elif opt in ("-i", "--inputfile"):
+            in_file = arg
+        elif opt in ("-o", "--outputfile"):
+            out_file = arg
+        elif opt in ("-s", "--sortfield"):
+            sort_field = arg
+
+    print('Sorting', in_file, 'by', sort_field, 'into', out_file)
+
+    with open(in_file) as file:
+        data = json.load(file)
+
+        # The redirections object within the json
+        redirects = data['redirections']
+
+        # Do the sorting and stuff the array back into the original json object
+        data_sorted = sorted(redirects, key = lambda redirect: redirect[sort_field])
+        data['redirections'] = data_sorted
+
+        with open(out_file, 'w') as outfile:
+            json.dump(data, outfile, indent=4)
+
+
+if __name__ == "__main__":
+    # Give main all args except the .py filename
+    main(sys.argv[1:])