Add ability to directly pass in database info (for database backup) if we fail to get it from LocalSettings.php

update-wiki

@@ -4,6 +4,7 @@ import json
 import os
 from datetime import datetime
 from subprocess import check_call, check_output
+import argparse
 
 RELEASE_URL = "https://releases.wikimedia.org/mediawiki/{}/mediawiki-{}.tar.gz"
 
@@ -18,10 +19,6 @@ include("$IP/LocalSettings.php");
 print json_encode([%s]);
 """
 
-if len(sys.argv) < 3:
-    print("Please supply the path to the wiki and the MediaWiki version to update to")
-    exit(1)
-
 def download_version (version):
     release_version = version[:version.rfind(".")]
     url = RELEASE_URL.format(release_version, version)
@@ -61,25 +58,70 @@ def unpack_tarfile (tarfile, wiki_path):
 def update_database (wiki_path):
     check_call(["php", "maintenance/update.php"], cwd=wiki_path)
 
-WIKI_PATH = sys.argv[1]
-TARGET_VERSION = sys.argv[2]
+parser = argparse.ArgumentParser(description="MediaWiki backup and update script")
+parser.add_argument(
+    "--path",
+    dest="path",
+    required=True,
+    help="Path to wiki"
+)
+parser.add_argument(
+   "--version",
+   dest="version",
+   required=True,
+   help="Version to update to"
+)
+parser.add_argument(
+    "--dbserver",
+    dest="dbserver",
+    default="127.0.0.1",
+    help="Database host"
+)
+parser.add_argument(
+    "--dbname",
+    dest="dbname",
+    help="Database name"
+)
+parser.add_argument(
+    "--dbuser",
+    dest="dbuser",
+    help="Database username"
+)
+parser.add_argument(
+    "--dbpassword",
+    dest="dbpassword",
+    help="Database password"
+)
+args = parser.parse_args()
+
+wiki_database = {
+    "wgDBtype": "mysql",
+    "wgDBserver": args.dbserver,
+    "wgDBname": args.dbname,
+    "wgDBuser": args.dbuser,
+    "wgDBpassword": args.dbpassword
+}
+wiki_database.update(get_wiki_globals(args.path, "wgDBtype", "wgDBserver", "wgDBname", "wgDBuser", "wgDBpassword") or {})
+if not (wiki_database['wgDBserver'] and wiki_database['wgDBname'] and wiki_database['wgDBuser']):
+    print("Failed to determine wiki database settings! You may need to explicitly tell the script.")
+    sys.exit(1)
+
 BACKUP_KEY = "backup-{}".format(datetime.now()).replace(" ", "_").replace(":","-")
 
 os.makedirs(BACKUP_KEY)
 print(">> Backup directory is: {}".format(BACKUP_KEY))
 
 print(">> Backing up database")
-wiki_database = get_wiki_globals(WIKI_PATH, "wgDBtype", "wgDBserver", "wgDBname", "wgDBuser", "wgDBpassword")
 backup_database(wiki_database, BACKUP_KEY)
 
 print(">> Backing up wiki source")
-backup_source(WIKI_PATH, BACKUP_KEY)
+backup_source(args.path, BACKUP_KEY)
 
-print(">> Downloading MediaWiki {}".format(TARGET_VERSION))
-tarfile = download_version(TARGET_VERSION)
+print(">> Downloading MediaWiki {}".format(args.version))
+tarfile = download_version(args.version)
 
-print(">> Unpacking {} over {}".format(tarfile, WIKI_PATH))
-unpack_tarfile(tarfile, WIKI_PATH)
+print(">> Unpacking {} over {}".format(tarfile, args.path))
+unpack_tarfile(tarfile, args.path)
 
 print(">> Running database update")
-update_database(WIKI_PATH)
+update_database(args.path)