bootstrap

#!/bin/bash
# -*- coding: utf-8 -*- {{{
# vim: set fenc=utf-8 ft=python sw=4 ts=4 sts=4 et:

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#}}}

set -e

PROGNAME=`basename "$0"`

print_help() {
	cat <<-EOF
		Usage: $PROGNAME [OPTION]...
		Bootstrap a build environment
		
		Options:
		  -p, --python=INTERP   specify the Python interpreter (default is python2.7)
		  --buildout-args=ARGS  execute buildout with ARGS
		  -n, --skip-buildout   don't execute buildout
		  -s, --setuptools      specify setuptools location
		  -h, --help            display this help message and exit
	EOF
}

PYTHON=python2.7
SETUPTOOLS_VERSION=8.0.4
SETUPTOOLS=eggs/setuptools-$SETUPTOOLS_VERSION-py2.7.egg
unset CUSTOM_SETUPTOOLS
BUILDOUT_ARGS=""
SKIP_BUILDOUT=false
ARGS=""

while [[ $# != 0 ]]; do
	case "$1" in
		-p|--python) PYTHON="$2"; shift;;
		-p*) PYTHON="${1#??}";;
		--python=*) PYTHON="${1#*=}";;
		--buildout-args) BUILDOUT_ARGS="$2"; shift;;
		--buildout-args=*) BUILDOUT_ARGS="${1#*=}";;
		-n|--skip-buildout) SKIP_BUILDOUT=true;;
		-s|--setuptools) CUSTOM_SETUPTOOLS="$2"; shift;;
		--setuptools=*) CUSTOM_SETUPTOOLS="${1#*=}";;
		-h|--help) print_help; exit 0;;
		--) shift; break;;
		-*) echo "$0: unknown option: $1"; exit 1;;
		*) ARGS="$ARGS '$1'";
	esac
	shift
done
eval set -- "$ARGS"

if [[ $# != 0 ]]; then
	echo "$0: $PROGNAME takes no arguments" >&2
	echo "Try \`$PROGNAME --help' for more information" >&2
	exit 1
fi

if [[ -n "$CUSTOM_SETUPTOOLS" ]]; then
	SETUPTOOLS="$CUSTOM_SETUPTOOLS"
	if [[ ! -f "$SETUPTOOLS" ]]; then
		echo "$0: file does not exist: $SETUPTOOLS" >&2
		exit 1
	fi
elif [[ ! -f $SETUPTOOLS ]]; then
	mkdir -p eggs
	$PYTHON -S <<-EOF
	import os.path
	from urllib2 import urlopen
	ez = {}
	exec urlopen('https://bitbucket.org/pypa/setuptools/raw/$SETUPTOOLS_VERSION/ez_setup.py').read() in ez
	ez['_do_download'](ez['DEFAULT_VERSION'], ez['DEFAULT_URL'], os.path.abspath('eggs'), 15)
	EOF
fi

echo "+ $PYTHON -S ./bootstrap.py"
PYTHONPATH="$SETUPTOOLS" "$PYTHON" -S ./bootstrap.py

if [[ "$SKIP_BUILDOUT" != true ]]; then
	echo "+ bin/buildout $BUILDOUT_ARGS"
	bin/buildout $BUILDOUT_ARGS
fi