Enable dynamic method lookup for New Relic in Swift

newrelic-re-enable-dynamic.sh

#!/bin/bash

# Enable dynamic method lookup for Swift as explained here:
# https://docs.newrelic.com/docs/mobile-monitoring/new-relic-mobile-ios/install-configure/enabling-swift-interaction-traces
srcdir="$1"
if [ -z "$srcdir" ]; then
    echo Please provide a source directory;
    exit 1;
fi

methods=(
    # UIViewController
    viewDidLoad
    viewWillAppear
    viewDidAppear
    viewWillDisappear
    viewDidDisappear
    viewWillLayoutSubviews
    viewDidLayoutSubviews

    # UIImage
    imageNamed
    imageWithContentsOfFile
    imageWithData
    initWithContentsOfFile
    initWithData
    # TODO these are in addition to the above UIImage methods
    # imageWithData:scale
    # initWithData:scale

    # NSJSONSerialization
    JSONObjectWithData
    JSONObjectWithStream
    dataWithJSONObject
    writeJSONObject
    # TODO these should replace all the above NSJSONSerialization methods
    # JSONObjectWithData:options:error
    # JSONObjectWithStream:options:error
    # dataWithJSONObject:options:error
    # writeJSONObject:toStream:options:error

    # NSManagedObjectContext
    executeFetchRequest
    processPendingChanges
    # TODO these should replace all the above NSManagedObjectContext methods
    # executeFetchRequest:error
)
for method in "${methods[@]}"; do
    old="override func $method"
    new="override dynamic func $method"
    grep --color -lIrs "$old" "$srcdir" | xargs -I {} sed -i "" "s/$old/$new/g" {}
done