add listboxes command

listboxes

@@ -0,0 +1,75 @@
+#!/usr/bin/env python3
+import sys
+from pathlib import Path
+from configparser import ConfigParser
+from socket import gethostbyname, create_connection
+
+# cfgdir = Path('~/boxtools/cfg').expanduser()
+cfgdir = Path(__file__).parent / 'cfg'
+print(cfgdir, cfgdir.is_dir())
+
+
+def check_ssh(host, port=22):
+    try:
+        addr = gethostbyname(host)
+        test_socket = create_connection((addr, port), timeout=0.1)
+    except Exception as e:
+        if isinstance(e, TimeoutError):
+            return False, addr
+        return False, ''
+    else:
+        test_socket.close()
+    return True, addr
+
+
+opt = sys.argv[-1]
+header = ['box name', 'box type', 'frappy', 'R']
+if opt != 's':
+    if opt == 'a':
+        header.extend(['*online  ip     ', 'MAC addr'])
+    else:
+        header.append('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 ''
+    frappy = info.get('FRAPPY', {}).get('cfg', '')
+    box = info.get('BOX', {})
+    row = [file.stem,  box.get('type', 'unknown'), frappy, router]
+    if opt != 's':
+        row.append('')
+        if opt == 'a':
+            row.append(box.get('mac', ''))
+    table.append(row)
+
+sizes = [max([len(row[i]) for row in table]) for i in range(len(header))]
+
+inside = False
+print()
+for row in table:
+    if inside:
+        if opt != 's':
+            online, addr = check_ssh(row[0])
+            if opt == 'a':
+                addr = ('*' if online else ' ') + addr
+            elif not online:
+                continue
+            row[4] = addr
+    print('  '.join(v.ljust(l) for v, l in zip(row, sizes)))
+    if not inside:
+        print()
+        inside = True
+USAGE = """
+Usage:
+    listboxes o  # only boxes online (default)
+    listboxes a  # all boxes, all info
+    listboxes s  # short (without ip and online check)
+"""
+if opt in 'sao':
+    print()
+else:
+    print(USAGE)