Converts iOS/Simulator universal frameworks into xcframeworks

convert2xcframework

#!/bin/sh

# Assumes that the framework contains i382, x86_64, armv7, and arm64

for path in "$@"
do
  framework=$(basename "$path")
  
  # Make sure it's a framework'
  if [ "${framework##*.}" != "framework" ]; then
    >&2 echo "Skipping $path. It doesn't appear to be a framework."
    continue
  fi
  
  # Get needed names
  dir=$(dirname "$path")
  name="${framework%.*}"
  
  # Create temporary scratch area
  temp=$(mktemp -d)
  mkdir "$temp/ios"
  mkdir "$temp/sim"
  cp -r "$path" "$temp/ios"
  cp -r "$path" "$temp/sim"
  
  # Just making sure the library is where it is expected to be
  if [ ! -f "$temp/ios/$framework/$name" ]; then
    >&2 echo "$temp/ios/$framework/$name doesn't exist!"
    continue
  fi
  if [ ! -f "$temp/sim/$framework/$name" ]; then
    >&2 echo "$temp/sim/$framework/$name doesn't exist!"
    continue
  fi
  
  # Extract architectures
  lipo -extract armv7 -output "$temp/ios/$framework/$name.armv7" "$temp/ios/$framework/$name"
  lipo -extract arm64 -output "$temp/ios/$framework/$name.arm64" "$temp/ios/$framework/$name"
  lipo -extract i386 -output "$temp/sim/$framework/$name.i386" "$temp/sim/$framework/$name"
  lipo -extract x86_64 -output "$temp/sim/$framework/$name.x86_64" "$temp/sim/$framework/$name"
  
  # Recombine
  lipo -create -output "$temp/ios/$framework/$name" "$temp/ios/$framework/$name.armv7" "$temp/ios/$framework/$name.arm64"
  lipo -create -output "$temp/sim/$framework/$name" "$temp/sim/$framework/$name.i386" "$temp/sim/$framework/$name.x86_64"
  
  # Cleanup individual archs
  rm "$temp/ios/$framework/$name.armv7"
  rm "$temp/ios/$framework/$name.arm64"
  rm "$temp/sim/$framework/$name.i386"
  rm "$temp/sim/$framework/$name.x86_64"
  
  # Create xcframework
  xcrun xcodebuild -create-xcframework -framework "$temp/ios/$framework" -framework "$temp/sim/$framework" -output "$dir/$name.xcframework"
  
  # Cleanup
  rm -rf "$temp"
done