Kernlab fix: Missing command

1 files changed, 44 insertions, 5 deletions

diff --git a/kernlab.sh b/kernlab.sh
index 673c1f6..56f3168 100755
--- a/kernlab.sh
+++ b/kernlab.sh
@@ -25,16 +25,55 @@ fi
 # Pkg
 VER="0.9-11"
 
-DIR="`pwd`"
+# Dest
+R_CONF=$HOME/.bash_R_ot
+DEST="$HOME/r-packages"
+if [ -n "$1" ]; then
+  DEST="$1"
+fi
+
+
 echo "This installs Kernlab."
 echo "Press <Return> to continue, or <Ctrl+C> to abort."
 read
-cd /tmp
-if ! $WGET -O - "http://cran.r-project.org/src/contrib/Archive/kernlab/kernlab_$VER.tar.gz">/dev/null 2>&1; then
-  echo "Download failed! Aborting..."
+
+DIR="`pwd`"
+
+R_DONE=false
+mkdir "$DEST" >/dev/null 2>&1
+if [ ! -d "$DEST" ]; then
+  echo "Install directory '$DEST' is not available! Aborting..."
   exit 1
+else
+  if ! rmdir "$DEST" >/dev/null 2>&1; then # if not empty this will fail
+    echo "Install directory '$DEST' is not empty. Skipping kernlab installation..."
+    R_DONE=true
+  fi
+fi
+if ! $R_DONE; then
+cd /tmp
+  if ! $WGET -O - "http://cran.r-project.org/src/contrib/Archive/kernlab/kernlab_$VER.tar.gz">/dev/null 2>&1; then
+    echo "Download failed! Aborting..."
+    exit 1
+  fi
+  export R_LIBS="$DEST"
+  $R CMD INSTALL "kernlab_$VER.tar.gz"
 fi
-R CMD INSTALL kernlab_$VER.tar.gz
+
+echo 
+echo "Preparing R..."
+if [ ! -f $R_CONF ]; then
+  echo "R_LIBS=\"$DEST\"" >> "$R_CONF"
+  echo "R package destination has been stored in '$R_CONF'."
+  echo -n "Decide if R configuration should be linked to your .bashrc ('y/n'): "
+  read ANSWER_R_CONF
+  if [ $ANSWER_R_CONF = "y" ]; then
+    echo "source \"$R_CONF\"" >> $HOME/.bashrc
+  fi
+else
+  echo "It seems R is already configured ('$R_CONF' exists)."
+fi
+
 cd "$DIR"
 
 echo