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#!/usr/bin/python -O
#
# /usr/sbin/webapp-config
# Python script for managing the deployment of web-based
# applications
#
# Originally written for the Gentoo Linux distribution
#
# Copyright (c) 1999-2007 Authors
# Released under v2 of the GNU GPL
#
# Author(s) Stuart Herbert
# Renat Lumpau <rl03@gentoo.org>
# Gunnar Wrobel <wrobel@gentoo.org>
#
# ========================================================================
''' Helper functions for config protected files.'''
# ========================================================================
# Dependencies
# ------------------------------------------------------------------------
import re, os, os.path
import WebappConfig.wrapper
from WebappConfig.debug import OUT
# ========================================================================
# Config protection helper class
# ------------------------------------------------------------------------
class Protection:
'''
A small helper class to handle config protection.
'''
def __init__(self, cat, pn, pvr, pm):
'''
This is distribution specific so the information is provided by
wrapper.py
'''
self.config_protect = WebappConfig.wrapper.config_protect(cat, pn, pvr, pm)
self.protect_prefix = WebappConfig.wrapper.protect_prefix
self.update_command = WebappConfig.wrapper.update_command
# ------------------------------------------------------------------------
# Outputs:
# $my_return = the new mangled name (that you can use instead of
# $2)
def get_protectedname(self,
destination,
filename):
'''
Woh. Somewhere, we've decided that we're trying to overwrite a file
that we really want to save. So, we need a new name for the file that
we want to install - which is where we come in.
NOTE:
The filename that we produce is compatible with Gentoo's
etc-update tool. This is deliberate.
Inputs:
destination - the directory that the file is being installed into
filename - the original name of the file
'''
my_file = os.path.basename(filename)
my_filedir = destination + '/' + os.path.dirname(filename)
# find the highest numbered protected file that already
# exists, and increment it by one
entries = os.listdir(my_filedir)
OUT.debug('Identifying possible file number', 7)
numbers = []
prefix = self.protect_prefix
rep = re.compile(prefix.replace('.','\.') + '(\d{4})_')
for i in entries:
rem = rep.match(i)
if rem:
numbers.append(int(rem.group(1)))
if numbers:
max_n = max(numbers) + 1
else:
max_n = 0
return my_filedir + '/%s%.4d_%s' % (prefix, max_n, my_file)
def dirisconfigprotected(self, installdir):
'''
Traverses the path of parent directories for the
given install dir and checks if any matches the list
of config protected files.
'''
my_master = []
for i in self.config_protect.split(' '):
if i[0] == '/':
if i[-1] == '/':
my_master.append(i[:-1])
else:
my_master.append(i)
if installdir[0] != '/':
OUT.die('BUG! Don\'t call this with a relative path.')
if installdir[-1] == '/':
my_dir = installdir[:-1]
else:
my_dir = installdir
while my_dir:
if my_dir == '.' or my_dir == '/':
return False
for x in my_master:
if my_dir == x:
return True
my_dir = os.path.dirname(my_dir)
# nope, the directory isn't config-protected at this time
return False
def how_to_update(self, dirs):
'''
Instruct the user how to update the application.
'''
my_command = self.update_command
directories = []
for i in dirs:
present = False
if directories:
for j in directories:
if (i == j[:len(i)] or
j == i[:len(j)]):
present = True
break
if not present:
directories.append(i)
my_command_list = ''
for i in directories:
if not self.dirisconfigprotected(i):
my_command_list += 'CONFIG_PROTECT="' + i + '" ' + my_command + '\n'
if not my_command_list:
my_command_list = my_command
OUT.warn('One or more files have been config protected\nTo comple'
'te your install, you need to run the following command(s):\n\n'
+ my_command_list)
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