listboxes: show router ports

listboxes

@@ -23,20 +23,42 @@ def check_ssh(host, port=22):
 
 
 opt = sys.argv[-1]
-header = ['box name', 'box type', 'frappy', 'R']
-if opt != 's':
+if opt.startswith('-'):
+    opt = opt[1:]
+header = ['box name', 'box type', 'frappy']
+if opt == 's':
+    header.append('R')
+else:
     if opt == 'a':
-        header.extend(['*online  ip     ', 'MAC addr'])
+        header.extend(['router', '*online  ip     ', 'MAC addr'])
     else:
-        header.append('ip')
+        header.extend(['R', 'ip'])
 table = [header]
 
 for file in sorted(cfgdir.glob('*.cfg')):
     parser = ConfigParser()
     parser.read(file)
     info = {k: dict(parser[k]) for k in parser.sections()}
-    router = info.get('ROUTER')
-    router = 'R' if router else ''
+    router = info.get('ROUTER', {})
+    if opt == 'a':
+        ports = sorted(router)
+        router = []
+        following = None
+        for p in ports:
+            try:
+                pnum = int(p)
+                if pnum == following:
+                    first = router[-1].split('-')[0]
+                    router[-1] = f'{first}-{following}'
+                    following += 1
+                    continue
+                following = pnum + 1
+            except ValueError:
+                pnum = -1
+            router.append(p)
+        router = ' '.join(router)
+    else:
+        router = 'R' if router else ''
     frappy = info.get('FRAPPY', {}).get('cfg', '')
     box = info.get('BOX', {})
     row = [file.stem,  box.get('type', 'unknown'), frappy, router]
@@ -68,6 +90,8 @@ Usage:
     listboxes o  # only boxes online (default)
     listboxes a  # all boxes, all info
     listboxes s  # short (without ip and online check)
+
+    column R: router configured
 """
 if opt in 'sao':
     print()