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#!/bin/bash
#
# Installs Kernlab.
# Author: Christoph Helma, Andreas Maunz.
#
source ./config.sh
source ./utils.sh
if [ "$(id -u)" = "0" ]; then
echo "This script must be run as non-root." 1>&2
exit 1
fi
# Utils
WGET="`which wget`"
if [ ! -e "$WGET" ]; then
echo "'wget' missing. Install 'wget' first. Aborting..."
exit 1
fi
R="`which R`"
if [ ! -e "$R" ]; then
echo "'R' missing. Install 'R' first. Aborting..."
exit 1
fi
# Pkg
LOG="/tmp/`basename $0`-log.txt"
echo "Kernlab ('$LOG')."
DIR="`pwd`"
R_DONE=false
mkdir "$KL_DEST" >/dev/null 2>&1
if [ ! -d "$KL_DEST" ]; then
echo "Install directory '$KL_DEST' is not available! Aborting..."
exit 1
else
if ! rmdir "$KL_DEST" >/dev/null 2>&1; then # if not empty this will fail
echo "Install directory '$KL_DEST' not empty. Skipping kernlab installation."
R_DONE=true
else
mkdir "$KL_DEST" >/dev/null 2>&1
fi
fi
if ! $R_DONE; then
cd /tmp
URI="http://cran.r-project.org/src/contrib/Archive/kernlab/kernlab_$KL_VER.tar.gz"
cmd="$WGET $URI" && run_cmd "$cmd" "Download"
export R_LIBS="$KL_DEST" # To install non-global
cmd="$R CMD INSTALL kernlab_$KL_VER.tar.gz" && run_cmd "$cmd" "Install"
fi
if [ ! -f $KL_CONF ]; then
echo "if ! [[ \"\$R_LIBS\" =~ \"$KL_DEST\" ]]; then export R_LIBS=\"$KL_DEST\"; fi" >> "$KL_CONF"
echo "R package destination has been stored in '$KL_CONF'."
if ! grep "$KL_CONF" $HOME/.bashrc >/dev/null 2>&1 ; then
echo "source \"$KL_CONF\"" >> $HOME/.bashrc
fi
fi
cd "$DIR"
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