new pro scripts

scripts/upgrade/check_backend.py

@@ -0,0 +1,41 @@
+#coding: UTF-8
+
+import os
+import sys
+import configparser
+
+
+def main():
+    cfg = configparser.ConfigParser()
+    seafile_conf_dir = os.environ['SEAFILE_CONF_DIR']
+    seafile_conf = os.path.join(seafile_conf_dir, 'seafile.conf')
+    cfg.read(seafile_conf)
+
+    sections_map =  {
+        'blocks': 'block_backend',
+        'fs': 'fs_object_backend',
+        'commits': 'commit_object_backend',
+    }
+
+    backends = {}
+    for name, section in sections_map.items():
+        if cfg.has_option(section, 'name'):
+            backend_name = cfg.get(section, 'name')
+        else:
+            backend_name = 'fs'
+        backends[name] = backend_name
+
+    if any([ bend == 's3' for bend in list(backends.values()) ]):
+        print('s3')
+        return
+
+    if any([ bend == 'ceph' for bend in list(backends.values()) ]):
+        print('ceph')
+        return
+
+if __name__ == '__main__':
+    try:
+        main()
+    except Exception as e:
+        sys.stderr.write(str(e))
+        sys.stderr.flush()