Quick bash script for converting Swift playgrounds between Mac and iOS.

playgroundUtil

#!/usr/bin/env bash 

VERSION=0.1.0
USAGE="$(basename "$0") [--ios|--mac] [-f ./file.playground] [Files...]

where:
  -h      Show this help text
  --ios   Tells the command to turn the playground into a iOS compatible playground (default).
  --mac   Tells the command to turn the playground into a iOS compatible playground.
  -f      The path to a playground file (or you can leave out and all trailing arguments are parsed for playgrounds).
"

iOSFlag=true
macFlag=false
pathArray=()
index=0

if [[ $# -eq 0 ]]; then
  printf "Missing playground file.\n\n" >&2
  echo "$USAGE" >&2
  exit 1
fi

while [ $# -gt 0 ]
do
  case "$1" in
    -h)
      echo "$USAGE"
      exit;;
    --version)
      echo "$(basename $0) Version $VERSION (https://gist.github.com/snown/ed55fe772208f59e8128)"
      exit;;
    --ios)
      macFlag=false
      iOSFlag=true;;
    --mac)
      macFlag=true
      iOSFlag=false;;
    -f|--file)
      if [[ -n "$2" ]]; then
        if [[ "$2" =~ \.playground$ && -d "$2" ]]; then
          pathArray[index]="$2"
        fi
        shift
      fi;;
    --)
      shift; break;;
    -*)
      printf "Illegal option: $1\n\n" >&2
      echo "$USAGE" >&2
      exit 1;;
    *)
      break;;
  esac
  shift
done

for arg in "$@"; do
  if [[ "$arg" =~ \.playground$ && -d "$arg" ]]; then
    pathArray[index]="$arg"
    ((index++))
  fi
done

old_sdk=
new_sdk=
old_baseClass=
new_sdk=
if [ $iOSFlag == true ]; then
  old_sdk="macosx"
  old_baseClass="Foundation"
  new_sdk="iphonesimulator"
  new_baseClass="UIKit"
elif [ $macFlag == true ]; then
  new_sdk="macosx"
  new_baseClass="Foundation"
  old_sdk="iphonesimulator"
  old_baseClass="UIKit"
fi

if [ ${#pathArray[@]} -eq 0 ]; then
  printf "Missing playground file.\n\n" >&2
  echo "$USAGE" >&2
  exit 1
fi

index=0

for arg in "${pathArray[@]}"; do
  cd "$arg"

  # sed -i '' -e "s/^import $old_baseClass\s*$/import $new_baseClass/g" ./*.swift

  sed -i '' -e "s/\(^<playground.*sdk=\"\)\($old_sdk\)\(\".*>$\)/\1$new_sdk\3/g" ./contents.xcplayground

  ((index++))
done

exit 0