/stdhome

# config.py

#

# Copyright (C) 2014 Tim Marston <tim@edm.am>

#

# This file is part of stdhome (hereafter referred to as "this program").

# See http://ed.am/dev/stdhome for more information.

#

# 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 3 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, see <http://www.gnu.org/licenses/>.

import os, re, errno

from .file_matcher import FileMatcher

from . import the

class Config:

	def __init__( self ):

		self.symlinks = None

		self.ignores = None

		self.default_vcs = 'bzr'

		self.read_config( the.config_file )

	def read_config( self, config_file ):

		# read file

		if the.verbose >= 1: print("reading config: %s" % ( config_file ))

		file = os.path.expanduser( config_file )

		try:

			with open( file ) as f:

				lines = f.readlines()

		except IOError as e:

			if e.errno != errno.ENOENT: raise

			lines = list()

		# parse config

		config = dict();

		for line in lines:

			# clean up line and skip empty lines and comments

			line = line.strip();

			if not len( line ): continue

			if line[ :1 ] == '#': continue

			# if section

			matches = re.search( '^\[(.*)\]$', line );

			if matches:

				section = matches.group( 1 )

				continue

			matches = re.search( '^([a-z0-9_-]+)\\s*=\\s*(.*)$', line, re.I )

			if matches:

				name = matches.group( 1 )

				value = matches.group( 2 )

				# parse value

				matches = re.search(

					'^(["\'])((?:\\.|[^\\1])*)\\1(?:\\s*#.*)?$', value )

				if matches:

					value = matches.group( 2 )

				else:

					matches = re.search( '^([^#]+?)(?:\\s*#.*)?$', value )

					if( matches ):

						value = matches.group( 1 )

				config[ "%s.%s" % ( section, name ) ] = value

				#print "  %s.%s = %s" % ( section, name, value )

		# use config

		if 'stdhome.home-dir' in config:

			the.home_dir = config[ 'stdhome.home-dir' ]

		if 'stdhome.default-vcs' in config:

			self.default_vcs = config[ 'stdhome.default-vcs' ]

		# read file matcher lists

		self.symlinks = FileMatcher( config_file, 'symlink' )

		self.ignores = FileMatcher( config_file, 'ignore' )

	def to_bool( self, value ):

		value = value.lower()

		return value == 't' or value == 'true' or value == 'yes' or \

			( re.search( '^[0-9]+$', value ) and int( value ) != 0 )