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#!/usr/bin/env python
# -*- coding: utf-8 -*-
"""
Setup helpers for PyGraphviz.
"""
# Copyright (C) 2006-2010 by
# Aric Hagberg <hagberg@lanl.gov>
# Dan Schult <dschult@colgate.edu>
# Manos Renieris, http://www.cs.brown.edu/~er/
# Distributed with BSD license.
# All rights reserved, see LICENSE for details.
import os
def pkg_config():
# attempt to find graphviz installation with pkg-config
# should work with modern versions of graphviz
try:
import subprocess as S
except ImportError:
print("""-- Missing subprocess package:
Install subprocess from
http://effbot.org/downloads/#subprocess
or set the graphviz paths manually as described below.""")
library_path=None
include_path=None
try:
output,err = \
S.Popen('pkg-config --libs-only-L libcgraph',
shell=True, stdin=S.PIPE, stdout=S.PIPE,
close_fds=True).communicate()
if output:
library_path=output.strip()[2:]
output,err = \
S.Popen('pkg-config --cflags-only-I libcgraph',
shell=True, stdin=S.PIPE, stdout=S.PIPE,
close_fds=True).communicate()
if output:
include_path=output.strip()[2:]
except:
print("Failed to find pkg-config")
return include_path,library_path
def dotneato_config():
# find graphviz configuration with dotneato-config
# works with older versions of graphviz
# attempt to find graphviz installation with pkg-config
# should work with modern versions of graphviz
try:
import subprocess as S
except ImportError:
print("""-- Missing subprocess package:
Install subprocess from
http://effbot.org/downloads/#subprocess
or set the graphviz paths manually as described below.""")
library_path=None
include_path=None
try:
output = S.Popen(['dotneato-config','--ldflags','--cflags'],
stdout=S.PIPE).communicate()[0]
if output:
include_path,library_path=output.split()
library_path=library_path.strip()[2:]
include_path=include_path.strip()[2:]
else:
output = S.Popen(['dotneato-config','--libs','--cflags'],
stdout=S.PIPE).communicate()[0]
if output:
include_path,library_path=output.split('\n',1)
library_path=library_path.strip()[2:]
include_path=include_path.strip()[2:]
except:
print("Failed to find dotneato-config")
return include_path,library_path
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