[lnst] NetConfigDevNames: Separating scan_netdevs method

[Jiří Pírko]

commit af216c39d4ed7bc02c94373248e99661ffb527c1
Author: Radek Pazdera <rpazdera(a)redhat.com&gt;
Date:   Mon Aug 13 12:01:45 2012 +0200

    NetConfigDevNames: Separating scan_netdevs method
    
    I separated scan_netdevs method from the class, changed it to
    regular function and moved it into the Common.NetUtils module,
    because it will be useful elsewhere in the code, but not in the
    context of the class and outside of the NetConfig module.
    
    Signed-off-by: Radek Pazdera <rpazdera(a)redhat.com&gt;

 Common/NetUtils.py             |   19 +++++++++++++++++++
 NetConfig/NetConfigDevNames.py |   23 +++--------------------
 2 files changed, 22 insertions(+), 20 deletions(-)
---
diff --git a/Common/NetUtils.py b/Common/NetUtils.py
index 7e642b6..42ee6f0 100644
--- a/Common/NetUtils.py
+++ b/Common/NetUtils.py
@@ -11,6 +11,7 @@ rpazdera(a)redhat.com (Radek Pazdera)
 """
 
 import logging
+import os
 import re
 import socket
 import subprocess
@@ -18,6 +19,24 @@ import subprocess
 def normalize_hwaddr(hwaddr):
     return hwaddr.upper().rstrip("\n")
 
+def scan_netdevs():
+    sys_dir = "/sys/class/net"
+    scan = []
+    for root, dirs, files in os.walk(sys_dir):
+        if "lo" in dirs:
+            dirs.remove("lo")
+        for d in dirs:
+            dev_path = os.path.join(sys_dir, d)
+            addr_path = os.path.join(dev_path, "address")
+            if not os.path.isfile(addr_path):
+                continue
+            handle = open(addr_path, "rb")
+            addr = handle.read()
+            handle.close()
+            addr = normalize_hwaddr(addr)
+            scan.append({"name": d, "hwaddr": addr})
+    return scan
+
 def get_corespond_local_ip(query_ip):
     """
     Get ip address in local system which can communicate with query_ip.
diff --git a/NetConfig/NetConfigDevNames.py b/NetConfig/NetConfigDevNames.py
index 7c7f862..0f246d9 100644
--- a/NetConfig/NetConfigDevNames.py
+++ b/NetConfig/NetConfigDevNames.py
@@ -14,31 +14,14 @@ import logging
 import os
 from NetConfigCommon import get_option
 from Common.NetUtils import normalize_hwaddr
+from Common.NetUtils import scan_netdevs
 
 class NetConfigDevNames:
     def __init__(self):
-        self._scan = self._scan_netdevs()
-
-    def _scan_netdevs(self):
-        sys_dir = "/sys/class/net"
-        scan = []
-        for root, dirs, files in os.walk(sys_dir):
-            if "lo" in dirs:
-                dirs.remove("lo")
-            for d in dirs:
-                dev_path = os.path.join(sys_dir, d)
-                addr_path = os.path.join(dev_path, "address")
-                if not os.path.isfile(addr_path):
-                    continue
-                handle = open(addr_path, "rb")
-                addr = handle.read()
-                handle.close()
-                addr = normalize_hwaddr(addr)
-                scan.append({"name": d, "hwaddr": addr})
-        return scan
+        self._scan = scan_netdevs()
 
     def rescan_netdevs(self):
-        self._scan = self._scan_netdevs()
+        self._scan = scan_netdevs()
 
     def assign_name_by_scan(self, dev_id, netdev):
         if (not "hwaddr" in netdev or