From 0098f094b7d726b5f77268d5633c56bdaf6da15c Mon Sep 17 00:00:00 2001
From: Mingye Wang <arthur200126@gmail.com>
Date: Sun, 25 Oct 2015 01:49:56 -0400
Subject: [PATCH] Remove busybox dependency
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配上一点测试，busybox 就是可选依赖了。
---
 chnroutes.py | 20 ++++++++++++++------
 1 file changed, 14 insertions(+), 6 deletions(-)

diff --git a/chnroutes.py b/chnroutes.py
index 99401a6..bb12dbf 100755
--- a/chnroutes.py
+++ b/chnroutes.py
@@ -157,18 +157,26 @@ def generate_android(metric):
     
     upscript_header=textwrap.dedent("""\
     #!/bin/sh
-    alias nestat='/system/xbin/busybox netstat'
-    alias grep='/system/xbin/busybox grep'
-    alias awk='/system/xbin/busybox awk'
-    alias route='/system/xbin/busybox route'
+    busybox="$(PATH="/system/xbin/busybox:$PATH" which busybox || echo /system/xbin/busybox)"
+    phas(){ type "$@" &>/dev/null; }
+    bhas(){ "$busybox" "$@" &>/dev/null; }
     
-    OLDGW=`netstat -rn | grep ^0\.0\.0\.0 | awk '{print $2}'`
+    phas netstat || alias nestat='"$busybox" netstat'
+    phas grep || alias grep='"$busybox" grep'
+    phsa route || alias route='"$busybox" route'
+    
+    read _ OLDGW _ << EOF
+    $(netstat -rn | grep ^0\.0\.0\.0)
+    EOF
     
     """)
     
     downscript_header=textwrap.dedent("""\
     #!/bin/sh
-    alias route='/system/xbin/busybox route'
+    busybox="$(PATH="/system/xbin/busybox:$PATH" which busybox || echo /system/xbin/busybox)"
+    phas(){ type "$@" &>/dev/null; }
+    bhas(){ "$busybox" "$@" &>/dev/null; }
+    phas route || alias route='/system/xbin/busybox route'
     
     """)