Automatically generates an xcode .imageset from clipboard

xcasset.sh

#!/usr/bin/env bash
folder_path="$HOME/Downloads/$1.imageset"
mkdir -p "$folder_path"

# Determine size
SIZE=${2:-30}
N_A="${SIZE}x${SIZE}"
N_B="$((SIZE*2))x$((SIZE*2))"
N_C="$((SIZE*3))x$((SIZE*3))"

pbpaste | convert -size $N_C -background transparent SVG:- \( +clone -resize $N_A -write "$folder_path/@x.png" +delete \) \( +clone -resize $N_B -write "$folder_path/@2x.png" +delete \) \( +clone -resize $N_C -write "$folder_path/@3x.png" +delete \) null:- | :
echo '{
  "images" : [
    {
      "idiom" : "universal",
      "filename" : "@x.png",
      "scale" : "1x"
    },
    {
      "idiom" : "universal",
      "filename" : "@2x.png",
      "scale" : "2x"
    },
    {
      "idiom" : "universal",
      "filename" : "@3x.png",
      "scale" : "3x"
    }
  ],
  "info" : {
    "version" : 1,
    "author" : "xcode"
  },
  "properties" : {
    "template-rendering-intent" : "template"
  }
}' > "$folder_path/Contents.json"