install_macports.sh

#!/bin/bash
# This script was taken from https://trac.macports.org/wiki/howto/AdvancedDailyAdm
# If you are using the copy of this that came with the "macportsscripts" port,
# then you probably will NOT need to use this, as that should mean that you
# already have MacPorts installed

################################################################################
# copyright Bjarne D Mathiesen
#           København ; Danmark ; Europa
#           macintosh .at. mathiesen .dot. info
# date      04/07-2007
# revised   02/12-2007  implemented automatic patching of Portfiles
#           28/12-2009  fixed the download link
#                       modified source/build directory
#                       removed sudo from commands
#           18/06-2011  added default values for the parameters
#                       updated path values for XCode4
#
# this script is released under the BSD license
# the author welcomes feedback and improvements
# 

usage() {
cat <<EOT
purpose : to automate the whole install process
\${1} : action                 [ install (default) , paths ]
\${2} : install prefix         ( default /macports )
\${3} : macports base version  ( default 2.2.1 )
EOT
}

declare action=${1:-"install"}
# Leaving this alternate prefix as-is, as we are installing a new MacPorts there
declare prefix=${2:-"/macports"}
declare version=${3:-"2.2.1"}

case ${action} in
########################
# setup the system paths
'paths')

mkdir -p  /etc/paths.d
cp    -np /etc/paths /etc/paths.orig
mv    -n  /etc/paths /etc/paths.d/999macosx
touch     /etc/paths

echo "${prefix}/bin"        >  /etc/paths.d/000macports
echo "${prefix}/sbin"       >> /etc/paths.d/000macports

echo "/Developer/usr/bin"   >  /etc/paths.d/888developer
echo "/Developer/usr/sbin"  >> /etc/paths.d/888developer

mkdir -p  /etc/manpaths.d
cp    -np /etc/manpaths /etc/manpaths.orig
mv    -n  /etc/manpaths /etc/manpaths.d/999macosx
touch     /etc/manpaths

echo "${prefix}/share/man"  > /etc/manpaths.d/000macports
echo "/Developer/usr/share/man"     >  /etc/manpaths.d/888developer
echo "/Developer/usr/X11/share/man" >> /etc/manpaths.d/888developer

# path_helper is buggy under 10.5
# however, messing with system stuff is a bad idea

;;
##################
# install macports
'install')

export OLDPWD=$(pwd)
if [ ! -z "$TMPDIR" ]; then
	cd $TMPDIR
	echo "cd $(pwd)"
else
	export TMPDIR=/tmp
	cd $TMPDIR
	echo "cd $(pwd)"
fi

if [ ! -e MacPorts-${version}.tar.gz ]
then
    curl -O --url "http://distfiles.macports.org/MacPorts/MacPorts-${version}.tar.gz"
fi

rm  -rf  ./MacPorts-${version}
tar -zxf   MacPorts-${version}.tar.gz

if [ -d /Developer/SDKs/MacOSX10.6.sdk/usr/X11/lib ]; then
	export MP_LDFLAGS=-L/Developer/SDKs/MacOSX10.6.sdk/usr/X11/lib
fi

set -e

cd MacPorts-${version}
./configure LDFLAGS=${MP_LDFLAGS} --prefix=${prefix}
make
make install

# update MacPorts itself
${prefix}/bin/port -d selfupdate

# let us get gawk
${prefix}/bin/port install gawk

# let us get bash
${prefix}/bin/port install bash

;;
# default
*)
usage
esac