Re: [gentoo-dev] A script to help in updating configuration files

[Einar Karttunen <ekarttun@cs.Helsinki.FI>]

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On Thu, Sep 06, 2001 at 08:41:49AM -0600, Daniel Robbins wrote:
> On Thu, Sep 06, 2001 at 01:39:11PM +0300, Einar Karttunen wrote:
> > Hello
> > 
> > The script is very simple, but I hope it
> > will help someone...
> > 
> > - Einar Karttunen
> 
> Neat!  I'll try it out and probably use it as a base for our config
> management update system.  Thank you very much and please continue 
> working on it and posting updates when you have made significant 
> improvements to the previous version.

I added some more functionality to it so it can be used 
better. It even has a minimal help :-)

- Einar Karttunen

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#!/usr/bin/env spython

# Einar Karttunen 9.6.2001 <ekarttun@cs.helsinki.fi>
# this file must be distributed under GNU GPL

# version 0.02

import os
import sys

if os.getuid()!=0:
	print "!!! etc-update must be run by root"
	sys.exit(1)

import commands
import portage
import string
import re

if not portage.settings["CONFIG_PROTECT"]:
	print "no CONFIG_PROTECTed directories"
	sys.exit(2)

def diff(old, new):
	print "new: "+new+" old: "+old
	os.system("diff -Bbs "+new+" "+old)


req = re.compile('\._cfg\d\d\d\d_')
for d in string.split(portage.settings["CONFIG_PROTECT"]):
	if os.path.isdir(d):
		r = commands.getstatusoutput("find "+d+" -iname '._cfg????_*'")
		if r[0] == 0:
			for file in string.split(r[1]):
				path, bare = re.split(req,file)
				bare = path + bare
				diff(file, bare)
				while 1:
					r = raw_input("overwrite old "+bare+" with new? [?drNy] ").lower()
					if r == 'y':
						os.system('mv -fv '+file+' '+bare)
					elif r== 'd':
						os.remove(file)
					elif r== 'r':
						diff(file, bare)
						continue
					elif r== '?':
						print """
 ?	display this help
 d	delete the NEW file
 r	print the diff another time
 N	do nothing (the deault)
 y	replace old with new
 remember you can use CTRL-Z to suspend and inspect the situation more closely
"""
						continue
					break
		else:
			print "error in 'find'"