Improved Installation Builder Script

[mslinn]

#!/bin/bash

ALMOND_VERSION=0.4.0
INSTALL_PATH=/tmp
SCALA_VERSION=2.12.8 
unset OVERWRITE

function help {
  echo "${1}$(basename $0) - Build Almond installer and execute it, then deletes installer and lists the Jupyter kernels.

almond is a Scala kernel for Jupyter. See https://almond.sh/docs

Options:
  -a  Specify Almond version (default is Almond $ALMOND_VERSION)
  -d  Debug mode
  -f  Force overwrite of previously built kernel of the same name
  -h  Show help message
  -s  Specify Scala version (default is Scala $SCALA_VERSION)
  
Examples:

$ buildAlmond -f  # Overwrite any previous version of the same name
Building Almond 0.4.0 for Scala 2.12.8
Installed scala kernel under /home/mslinn/.local/share/jupyter/kernels/scala2.12.8

$ buildAlmond -s 2.11.12 -a 0.4.0    
Building Almond 0.4.0 for Scala 2.11.12
Installed scala kernel under /home/mslinn/.local/share/jupyter/kernels/scala2.11.12
"
  exit 1
}

while getopts "a:dfs:h\?" opt; do
   case "$opt" in
     a) ALMOND_VERSION=$OPTARG ;;
     d) set -xv ;;
     f) OVERWRITE=--force ;;
     s) SCALA_VERSION=$OPTARG ;;
     *) help ;;
   esac
done
shift $(($OPTIND-1))

INSTALLER_NAME="$INSTALL_PATH/almondInstaller"

echo "Building Almond $ALMOND_VERSION for Scala $SCALA_VERSION"

coursier bootstrap \
  -r jitpack \
  -i user -I "user:sh.almond:scala-kernel-api_$SCALA_VERSION:$ALMOND_VERSION" \
  "sh.almond:scala-kernel_$SCALA_VERSION:$ALMOND_VERSION" \
  --sources \
  --default=true \
  -o "$INSTALLER_NAME"

"$INSTALLER_NAME" $OVERWRITE \
  --install \
  --id "scala${SCALA_VERSION}" \
  --display-name "Scala ($SCALA_VERSION)"

rm -f "$INSTALLER_NAME"

jupyter kernelspec list