namespace :git do

def reconfigure_cp_keys(source_file)

data_root = Ontohub::Application.config.data_root

git_home = Ontohub::Application.config.git_home

reconfigured_source = File.read(source_file).

sub(/^#define DATA_ROOT .*$/, "#define DATA_ROOT \"#{data_root}\"").

sub(/^#define GIT_HOME .*$/, "#define GIT_HOME \"#{git_home}\"")

reconfigured_source_file = Tempfile.new(%w(cp_keys .c))

reconfigured_source_file.write(reconfigured_source)

reconfigured_source_file.close

puts "Copying #{source_file} to tempfile #{reconfigured_source_file.path}"

puts "Reconfiguring DATA_ROOT in this tempfile to #{data_root}"

puts "Reconfiguring GIT_HOME in this tempfile to #{git_home}"

reconfigured_source_file

end

def compile_gcc(source_path, target_path)

command = ['gcc', source_path, '-o', target_path]

puts "Compiling #{target_path.split('/').last} with"

puts command.map { |c| c.match(/\s/) ? "'#{c}'" : c }.join(' ')

system(*command)

end

desc 'Compile cp_keys binary'

task :compile_cp_keys => :environment do

source_file = Rails.root.join('script', 'cp_keys.c')

target_path = Rails.root.join('bin', 'cp_keys').to_s

reconfigured_source_tempfile = reconfigure_cp_keys(source_file)

compile_gcc(reconfigured_source_tempfile.path, target_path)

reconfigured_source_tempfile.unlink

end

end