refactor: reuse common scripts and files

move common scripts to build/common

build/common/commands/migrate.py

@@ -0,0 +1,47 @@
+import os, frappe, compileall, re, json
+
+from frappe.migrate import migrate
+from frappe.utils import get_sites
+
+def get_config():
+    config = None
+    with open('common_site_config.json') as config_file:
+        config = json.load(config_file)
+    return config
+
+def save_config(config):
+    with open('common_site_config.json', 'w') as f:
+        return json.dump(config, f, indent=1, sort_keys=True)
+
+def set_maintenance_mode(enable=True):
+    conf = get_config()
+
+    if enable:
+        conf.update({ "maintenance_mode": 1, "pause_scheduler": 1 })
+        save_config(conf)
+
+    if not enable:
+        conf.update({ "maintenance_mode": 0, "pause_scheduler": 0 })
+        save_config(conf)
+
+
+installed_sites = ":".join(get_sites())
+sites = os.environ.get("SITES", installed_sites).split(":")
+maintenance_mode = True if os.environ.get("MAINTENANCE_MODE") else False
+
+if maintenance_mode:
+    set_maintenance_mode(True)
+
+for site in sites:
+    print('Migrating', site)
+    frappe.init(site=site)
+    frappe.connect()
+    try:
+        migrate()
+    finally:
+        frappe.destroy()
+
+if maintenance_mode:
+    set_maintenance_mode(False)
+
+exit(0)