testing local clone hook

storage/mdadm/status.py

@@ -0,0 +1,42 @@
+#!/usr/bin/env python3
+
+import mdstat  # apacman -S python-mdstat
+import os
+import subprocess
+
+# also requires parted to be installed
+
+def getMdstat():
+    mds = {}
+    with open(os.devnull, 'w') as DEVNULL:
+        _devlines = subprocess.run(['mdadm',
+                                    '--detail',
+                                    '--scan'],
+                                   stderr = DEVNULL,
+                                   stdout = subprocess.PIPE).stdout.decode('utf-8')
+    for m in _devlines.split():
+        l = m.split()
+        dev = os.path.split(l[1])[-1]
+        mds[dev] = {'device': l[1].strip(),
+                    'metadata': l[2].split('=')[1].strip(),
+                    'host': l[3].split('=')[1].split(':')[0].strip(),
+                    'name': l[3].split('=')[1].split(':')[1].strip(),
+                    'uuid': l[4].split('=')[1].strip()}
+        _md = mdstat.parse()['devices'][dev]
+        mds[dev]['status'] = ('active' if _md['active'] else 'inactive')
+        mds[dev]['members'] = _md['disks']
+        if _md['resync']:
+            mds[dev]['status'] = _md['resync']
+        # TODO: I STOPPED HERE
+
+def userChk():
+    # Needs to be run as root/with sudo, because we need to use mdadm --detail --scan etc.
+    if os.geteuid() != 0:
+        raise PermissionError('This script must be run with root privileges.')
+
+def main():
+    userChk()
+    getMdstat()
+
+if __name__ == '__main__':
+    main()