react-native-config/ios/ReactNativeConfig/BuildDotenvConfig.ruby

58 lines
1.7 KiB
Ruby
Executable File

#!/usr/bin/env ruby
require "json"
# pick a custom env file if set
if File.exists?("/tmp/envfile")
custom_env = true
file = File.read("/tmp/envfile").strip
else
custom_env = false
file = ".env"
end
puts "Reading env from #{file}"
dotenv = begin
# https://regex101.com/r/SLdbes/1
dotenv_pattern = /^(?<key>[[:alnum:]_]+)=((?<quote>["'])?(?<val>.*?[^\\])\k<quote>?|)$/
# find that above node_modules/react-native-config/ios/
raw = File.read(File.join(Dir.pwd, "../../../#{file}"))
raw.split("\n").inject({}) do |h, line|
m = line.match(dotenv_pattern)
next h if m.nil?
key = m[:key]
# Ensure string (in case of empty value) and escape any quotes present in the value.
val = m[:val].to_s.gsub('"', '\"')
h.merge(key => val)
end
rescue Errno::ENOENT
puts("**************************")
puts("*** Missing .env file ****")
puts("**************************")
{} # set dotenv as an empty hash
end
# create obj file that sets DOT_ENV as a NSDictionary
dotenv_objc = dotenv.map { |k, v| %Q(@"#{k}":@"#{v}") }.join(",")
template = <<EOF
#define DOT_ENV @{ #{dotenv_objc} };
EOF
# write it so that ReactNativeConfig.m can return it
path = File.join(ENV["SYMROOT"], "GeneratedDotEnv.m")
File.open(path, "w") { |f| f.puts template }
# create header file with defines for the Info.plist preprocessor
info_plist_defines_objc = dotenv.map { |k, v| %Q(#define __RN_CONFIG_#{k} #{v}) }.join("\n")
# write it so the Info.plist preprocessor can access it
path = File.join(ENV["BUILD_DIR"], "GeneratedInfoPlistDotEnv.h")
File.open(path, "w") { |f| f.puts info_plist_defines_objc }
if custom_env
File.delete("/tmp/envfile")
end
puts "Wrote to #{path}"