nut/scripts/augeas/gen-nutupsconf-aug.py

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2011-01-26 09:35:08 +00:00
#!/usr/bin/env python
# Copyright (C) 2010 - Arnaud Quette <arnaud.quette@gmail.com>
#
# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation; either version 2 of the License, or
# (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program; if not, write to the Free Software
# Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
# This program extracts all drivers specific variables, declared
# using 'addvar()' and output a complete ups.conf lens for Augeas
import sys
import re
import glob
import codecs
# Return a sorted list of unique entries, based on the input 'list'
def sortUnique(list):
newVarList = []
prevVar = ''
# sort the list
list.sort()
for curVariable in list:
if curVariable != prevVar:
newVarList.append(curVariable)
prevVar = curVariable
return newVarList
# Grep for 'string' pattern in the text 'list',
# excluding C/C++ styles comments
# Return the list of matching lines
def grep(string,list):
matchList = []
expr = re.compile(string)
for text in list:
match = expr.search(text)
if match != None:
# Exclude comments
exprComment = re.compile('(/\*([^*]|(\*+[^*/]))*\*+/)|(//.*)')
if (exprComment.search(match.string) == None):
matchList.append(match.string)
return matchList
if __name__ == '__main__':
rawCount = 0
global finalCount
variableNames = []
specificVars = ""
global inLensContent
global finalLensContent
Exceptionlist = ['../../drivers/main.c', '../../drivers/skel.c']
outputFilename = 'nutupsconf.aug.in'
templateFilename = 'nutupsconf.aug.tpl'
dirPrefix = ''
if (len(sys.argv) == 2):
dirPrefix = sys.argv[1]
print dirPrefix
# 1/ Extract all specific drivers parameters, in a sorted list with unique entries
# 1.1/ List all drivers implementation files
for filename in glob.glob('../../drivers/*.c'):
# 1.2/ Exclude main.c, which defines addvar() and skel.c (example driver)
if filename not in Exceptionlist:
fd = codecs.open(filename, encoding='utf-8')
# 1.3/ Grep for the "addvar(..." pattern
matchResults = grep ('.*addvar[\ ]*\(.*(VAR_FLAG|VAR_VALUE)*,.*', fd)
# 1.4/ Extract variable names
for line in matchResults:
row = line.split(',')
if len(row) >= 2:
# Absence of quotes indicate that we have a #define
# Let's grep in .ch related files
if (row[1].find('"') == -1):
for defFilename in glob.glob(filename.replace('.c', '.[ch]')):
defFd = codecs.open(defFilename, encoding='utf-8')
matchString = '^#define.*' + row[1].replace('"', '').lstrip() + '.*'
matchResult = grep (matchString, defFd)
for varDefine in matchResult:
# Now search for a string
defRow = re.findall(r'"([^"]*)",?', varDefine)
if (len(defRow) == 1):
variableNames.append(defRow[0])
else:
# Remove quotes
variableNames.append(row[1].replace('"', '').lstrip())
# Filter multiply defined variables
variableNames = sortUnique(variableNames)
# Create the formated list of specific variables
for name in variableNames:
specificVars += " | \"%s\"\n" %(name)
# 2/ Load the template lens
tplFd = codecs.open(dirPrefix + templateFilename, encoding='utf-8')
# 2.1/ Search for the pattern to replace
outputText = tplFd.read()
outputText = outputText.replace('@SPECIFIC_DRV_VARS@', specificVars)
# 3/ Output final lens
outFd = codecs.open(outputFilename, mode='w', encoding='utf-8')
outFd.write(outputText)