commit 8f7a3b6b5d8f7a1d4c7b09f3642c33909e531a73
Author: Adrian Malacoda <malacoda@monarch-pass.net>
Date:   Sun Oct 4 21:57:01 2020 -0500

    Initial commit

diff --git a/README.md b/README.md
new file mode 100644
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--- /dev/null
+++ b/README.md
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+# Monarch Pass Update Wiki Script
+This updates an installation of MediaWiki by backing up the source code and database, downloading the new version, overlaying it on the target wiki, and then running the database updater script.
+
+This is not used for containerized installations, which are updated when the container is rebuilt.
+
+## License
+GNU GPL v3 or later
diff --git a/update-wiki b/update-wiki
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index 0000000..b78a93f
--- /dev/null
+++ b/update-wiki
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+#!/usr/bin/env python3
+import sys
+import json
+import os
+from datetime import datetime
+from subprocess import check_call, check_output
+
+RELEASE_URL = "https://releases.wikimedia.org/mediawiki/{}/mediawiki-{}.tar.gz"
+
+PHP_GLOBALS_SCRIPT = """
+error_reporting(0);
+define("MEDIAWIKI", 1);
+$IP = "%s";
+function wfLoadExtensions() { }
+function wfLoadExtension() { }
+function wfLoadSkin() { }
+include("$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)
+    filename = url[url.rfind("/") + 1:]
+    if not os.path.isfile(filename):
+        check_call(["wget", url])
+
+    return filename
+
+def backup_source (wiki_path, backup_directory):
+    check_call(["tar", "-cvf", os.path.join(backup_directory, "source.tar"), wiki_path])
+
+def backup_database (wiki_database, backup_directory):
+    check_call([
+        "mysqldump",
+        "-u{wgDBuser}".format(**wiki_database),
+        "-p{wgDBpassword}".format(**wiki_database),
+        "-h{wgDBserver}".format(**wiki_database),
+        "--result-file={}".format(os.path.join(backup_directory, "database.sql")),
+        wiki_database['wgDBname']
+   ])
+
+def get_wiki_globals (wiki_path, *args):
+    script = PHP_GLOBALS_SCRIPT % (wiki_path, ",".join(['"{}" => ${}'.format(var, var) for var in args]))
+    script_out = check_output(["php", "-d", "error_reporting=0", "-r", script])
+    for line in script_out.decode().split("\n"):
+        if line.startswith("{"):
+            return json.loads(line.strip())
+
+def unpack_tarfile (tarfile, wiki_path):
+    tarsource = tarfile[:-len(".tar.gz")]
+    if not os.path.isdir(tarsource):
+        check_call(["tar", "-xvf", tarfile])
+
+    check_call("cp -Rv {}/* {}".format(tarsource, wiki_path), shell=True)
+
+def update_database (wiki_path):
+    check_call(["php", "maintenance/update.php"], cwd=wiki_path)
+
+WIKI_PATH = sys.argv[1]
+TARGET_VERSION = sys.argv[2]
+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)
+
+print(">> Downloading MediaWiki {}".format(TARGET_VERSION))
+tarfile = download_version(TARGET_VERSION)
+
+print(">> Unpacking {} over {}".format(tarfile, WIKI_PATH))
+unpack_tarfile(tarfile, WIKI_PATH)
+
+print(">> Running database update")
+update_database(WIKI_PATH)