SOURCES: kernel-config-update.py (NEW) - reveerse config generator...

[glen]

Author: glen                         Date: Mon Jan 28 22:19:42 2008 GMT
Module: SOURCES                       Tag: HEAD
---- Log message:
- reveerse config generator from .config, based on kernel-config.py

---- Files affected:
SOURCES:
   kernel-config-update.py (NONE -> 1.1)  (NEW)

---- Diffs:

================================================================
Index: SOURCES/kernel-config-update.py
diff -u /dev/null SOURCES/kernel-config-update.py:1.1
--- /dev/null	Mon Jan 28 23:19:42 2008
+++ SOURCES/kernel-config-update.py	Mon Jan 28 23:19:36 2008
@@ -0,0 +1,160 @@
+#!/usr/bin/python
+
+# Update kernel.conf based on kernel .config file
+# arekm at pld-linux.org
+# glen at pld-linux.org
+
+import sys
+import re
+
+if len(sys.argv) != 4:
+    print "Usage: %s target_arch kernel.conf .config" % sys.argv[0]
+    sys.exit(1)
+
+arch = sys.argv[1]
+kernelconfig = sys.argv[2]
+inconfig = sys.argv[3]
+
+from UserDict import UserDict
+
+# odict (Ordered Dict) from http://aspn.activestate.com/ASPN/Cookbook/Python/Recipe/107747
+class odict(UserDict):
+    def __init__(self, dict = None):
+        self._keys = []
+        UserDict.__init__(self, dict)
+
+    def __delitem__(self, key):
+        UserDict.__delitem__(self, key)
+        self._keys.remove(key)
+
+    def __setitem__(self, key, item):
+        UserDict.__setitem__(self, key, item)
+        if key not in self._keys: self._keys.append(key)
+
+    def clear(self):
+        UserDict.clear(self)
+        self._keys = []
+
+    def copy(self):
+        dict = UserDict.copy(self)
+        dict._keys = self._keys[:]
+        return dict
+
+    def items(self):
+        return zip(self._keys, self.values())
+
+    def keys(self):
+        return self._keys
+
+    def popitem(self):
+        try:
+            key = self._keys[-1]
+        except IndexError:
+            raise KeyError('dictionary is empty')
+
+        val = self[key]
+        del self[key]
+
+        return (key, val)
+
+    def setdefault(self, key, failobj = None):
+        UserDict.setdefault(self, key, failobj)
+        if key not in self._keys: self._keys.append(key)
+
+    def update(self, dict):
+        UserDict.update(self, dict)
+        for key in dict.keys():
+            if key not in self._keys: self._keys.append(key)
+
+    def values(self):
+        return map(self.get, self._keys)
+
+dict = odict()
+
+rc = 0
+f = open(kernelconfig, 'r')
+for l in f:
+    if l[:6] == 'CONFIG_':
+        print "Omit CONFIG_ when specifing symbol name: %s" % l
+        rc = 1
+        continue
+
+    if re.match('^#', l) or re.match('^\s*$', l):
+        continue
+
+    if not re.match('^[0-9A-Z]+', l):
+        print "Unknown line: %s" % l
+        rc = 1
+        continue
+
+    c = l.strip().split()
+    symbol = c[0]
+    if dict.has_key(symbol):
+        print "Duplicate symbol: %s" % symbol
+        rc = 1
+        continue
+
+    conf = dict[symbol] = odict()
+    for item in c[1:]:
+        (key, value) = item.split('=')
+        dict[symbol][key] = value
+
+#    print "Add symbol: %s = %s" % (symbol, dict[symbol])
+
+f.close()
+#rc =1
+
+if not rc == 0:
+    sys.exit(1)
+
+f = open(inconfig, 'r')
+for l in f:
+    # yes, module and string, numeric values
+    m = re.match("^CONFIG_(.*)=(.*)$", l)
+    if not m == None:
+        symbol = m.group(1)
+        value = m.group(2)
+    else:
+        # no values
+        m = re.match("^# CONFIG_(.*) is not set$", l)
+        if not m == None:
+            symbol = m.group(1)
+            value = "n"
+
+    # other data. perhaps comments
+    if m == None:
+        print l.strip()
+        continue
+
+    if dict.has_key(symbol):
+        c = dict[symbol]
+        if c.has_key('all') and c.has_key(arch):
+            c[arch] = value
+        if c.has_key('all'):
+            c['all'] = value
+        else:
+            c[arch] = value
+
+        s = ''
+        for k in c.keys():
+            s += ' %s=%s' % (k, c[k])
+
+        l = "%s %s" % (symbol, s.strip())
+        del dict[symbol]
+    else:
+        l = "%s %s=%s" % (symbol, arch, value)
+
+    # blacklist
+    # TODO: use some list here instead
+    if symbol != "LOCALVERSION" and symbol != "DEFCONFIG_LIST":
+        print l
+
+f.close()
+
+# print out remaining items from old dictionary
+for symbol in dict.keys():
+    s = ''
+    c = dict[symbol]
+    for k in c.keys():
+        s += ' %s=%s' % (k, c[k])
+    print "%s %s" % (symbol, s.strip())
================================================================