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#!/usr/bin/python
# $Progeny: reducemodules.py,v 1.4 2002/02/04 23:36:25 jlicquia Exp $
# reducemodules.py - reduce a module list to fit in a given amount of
# space
#
# Copyright (c) 2002 Progeny Linux Systems, Inc.
#
# License: GPL
#
# Usage: reducemodules.py <kernel-version> <size>
#
# This script takes a priority-sorted list of modules on stdin. It
# calculates the dependencies on each module, adds their sizes to a
# running size total, and outputs the module's path (and its
# dependencies) on stdout. Once the running size exceeds the size
# passed on the command line, stop.
import sys
import os
import string
tooldir = os.environ["TOOLS"]
kernel = sys.argv[1]
max_size = int(sys.argv[2])
total_size = 0
mod_list_read = []
input = sys.stdin
output = sys.stdout
def get_module_paths(module):
global tooldir
global kernel
global mod_list_read
global input
mod_list = []
modpaths = os.popen("sh %s/modtofile.sh %s %s" % (tooldir, kernel, module))
modules_size = 0
for line in modpaths.readlines():
module_path = string.strip(line)
if module_path in mod_list_read:
continue
if not os.path.exists(module_path):
continue
mod_size = (os.stat(module_path))[6]
modules_size = modules_size + mod_size
mod_list.append(module_path)
return (modules_size, mod_list)
for module in input.readlines():
(mod_size, mod_list) = get_module_paths(string.strip(module))
if total_size + mod_size > max_size:
continue
total_size = total_size + mod_size
mod_list_read.extend(mod_list)
for mod_path in mod_list:
output.write(mod_path + "\n")
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