Script to convert a single-module IntelliJ IDEA Scala/SBT project and libraries into a module definition

sync_idea_module.rb

require "nokogiri"

puts "launching gen-idea..."

puts `sbt gen-idea`

puts "finding module name..."

module_name=nil
basepath=".idea/libraries/"

Dir.new(".idea_modules/").each do |f|
  if f.match(".iml") && !f.match("build.iml")
    module_name=f
  end
end

unless module_name
  puts "error: could not find module name."
  exit
end

puts "module: #{module_name}"

puts "converting module definition..."

output_path=module_name
module_source=".idea_modules/#{module_name}"

source_doc = Nokogiri::XML(File.read(module_source))

root_manager_node = nil
components = source_doc.xpath("//component")
components.each do |c|
  puts c
  root_manager_node = c if c["name"]=="NewModuleRootManager"
end

unless root_manager_node
  puts "error: root manager node not found"
  exit
end

removed_count = 0

# remove previous library entries
old_libraries = source_doc.xpath("//orderEntry")
old_libraries.each do |l|
  if l["type"]=="library" || l["type"]=="module-library"
    l.remove
    removed_count+=1
  end
end


added_count = 0

Dir.new(basepath).each do |xml_file|
  if xml_file.match(".xml")
    puts "reading: #{xml_file}"
    doc = Nokogiri::XML(File.read(basepath+xml_file))

    library_node = doc.xpath("//library")
    
    order_entry_node = Nokogiri::XML::Node.new("orderEntry",doc)
    order_entry_node["type"] = "module-library"
    
    order_entry_node.add_child(library_node)
    root_manager_node.add_child(order_entry_node)

    added_count+=1
  end
end

#puts source_doc

puts "Removed #{removed_count} old libraries, added #{added_count} new."

File.open(output_path,"w") do |f|
  f.write(source_doc.to_s)
end

puts "#{output_path} written."