ubuntu_change_default_intellij.bash

#!/bin/bash

function show_usage {
  echo "
  This is a small script to change default IntelliJ's desktop binary
  "
  echo -e  "  usage: \033[92mbash $0 \033[93mpath/to/idea\033[0m\n"
}

function find_candidates {
  echo -en "  looking for candidates..."
  candidates=$(
    for i in `find / -name idea.sh 2> /dev/null`
      do
        echo -en "\033[93m$(dirname `dirname $i`)\033[0m "
      done
  )
  echo -e  "\033[2K\r  candidates:"
  for i in `echo $candidates | tr ' ' '\n' | sort` ; do echo "    $i" ; done
  echo
}

function replace_idea_home_in_shrc {
  idea_home=$1
  for shrc in `find $HOME \( -iname '.*shrc' -or -iname '.profile' \)`
    do
      replace=`printf "$idea_home" | awk '{gsub("/","\/",$1);print $1}'`
      sed -i "s/[/a-zA-Z]*idea-I[CU]-[0-9.]*/$replace/g" $shrc
    done
}

function replace_idea_home_in_desktop {
  idea_home=$1
  desk_conf=$2
  if [[ ! -f $desk_conf ]]
  then
    echo -e "\e[91mError\e[0m: $desk_conf: not found\n"
    echo "Here are the available conf file(s) you can modify: (put them in this script)"
    for i in `ls $(dirname $desk_conf)/*.desktop`; do echo "  $i"; done
  else
    replace=`printf "$idea_home" | awk '{gsub("/","\/",$1);print $1}'`
    sed -i "s/[/a-zA-Z]*idea-I[CU]-[0-9.]*/$replace/g" $desk_conf &&
      echo -e "\e[92mDone\e[0m !" ||
      echo -e "\e[91mUnknown Error\e[0m !"
  fi
}

function change_defaut_intellij {
  candidate=$1
  if [[ -z $candidate || ! -d $candidate || ! $candidate =~ "idea" ]]
  then
    show_usage
    find_candidates
  else
    idea_home="`dirname $candidate`/`basename $candidate`"
    desk_conf="${HOME}/.local/share/applications/jetbrains-idea.desktop"
    replace_idea_home_in_shrc $1
    replace_idea_home_in_desktop $idea_home $desk_conf
  fi
}

change_defaut_intellij $1