nixpkgs/pkgs/development/mobile/xcodeenv/simulate-app.nix

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{stdenv, xcodewrapper}:
{name, bundleId, app}:
stdenv.mkDerivation {
name = stdenv.lib.replaceChars [" "] [""] name;
buildCommand = ''
mkdir -p $out/bin
cat > $out/bin/run-test-simulator << "EOF"
#! ${stdenv.shell} -e
if [ "$1" = "" ]
then
# Show the user the possibile UDIDs and let him pick one, if none is provided as a command-line parameter
xcrun simctl list
echo "Please provide a UDID of a simulator:"
read udid
else
# If a parameter has been provided, consider that a device UDID an use that
udid="$1"
fi
# Open the simulator instance
open -a "$(readlink "${xcodewrapper}/bin/iOS Simulator")" --args -CurrentDeviceUDID $udid
# Copy the app and restore the write permissions
appTmpDir=$(mktemp -d -t appTmpDir)
cp -r "$(echo ${app}/*.app)" $appTmpDir
chmod -R 755 "$(echo $appTmpDir/*.app)"
# Wait for the simulator to start
echo "Press enter when the simulator is started..."
read
# Install the app
xcrun simctl install $udid "$(echo $appTmpDir/*.app)"
# Remove the app tempdir
rm -Rf $appTmpDir
# Launch the app in the simulator
xcrun simctl launch $udid "${bundleId}"
EOF
chmod +x $out/bin/run-test-simulator
'';
}