module NugetHelper

# File lib/nuget_helper.rb, line 15
def self.command_path(library, exe)
  cmd = self.first_command_path(library, exe)
  if cmd.nil?
    raise "Could not find #{exe} at the packages/#{library}*/tools/ path!"
  end
  return cmd
end

# File lib/nuget_helper.rb, line 9
def self.exec(parameters)
  spec = Gem::Specification.find_by_name("nuget")
  command = File.join(spec.gem_dir, "bin", "nuget.exe")
  self.run_tool(command, parameters)
end

# File lib/nuget_helper.rb, line 71
def self.last_version(files)
  files.max_by do |l|
    self.version_of(l)
  end
end

# File lib/nuget_helper.rb, line 43
def self.mspec_clr4_path
  self.command_path('Machine.Specifications', 'mspec-clr4.exe')
end

# File lib/nuget_helper.rb, line 39
def self.mspec_path
  self.command_path('Machine.Specifications', 'mspec.exe')
end

# File lib/nuget_helper.rb, line 47
def self.nspec_path
  self.command_path('nspec', 'NSpecRunner.exe')
end

# File lib/nuget_helper.rb, line 23
def self.nunit_path
  self.command_path('NUnit.Runners', 'nunit-console.exe')
end

# File lib/nuget_helper.rb, line 55
def self.run_tool(command, parameters=nil)
  system( to_shell_string( command, parameters))
end

# File lib/nuget_helper.rb, line 59
def self.run_tool_with_result(command, parameters=nil)
  stdout_str, stderr_str, status= Open3.capture3( to_shell_string( command, parameters))
  if ! status.success? 
    raise stderr_str
  end
  stdout_str
end

# File lib/nuget_helper.rb, line 51
def self.semver_fromassembly_path
  self.command_path('SemVer.FromAssembly', 'SemVer.FromAssembly.exe')
end

# File lib/nuget_helper.rb, line 67
def self.version_of(file)
  SemVer.parse(file.gsub(/\.nupkg$/, ''))
end

# File lib/nuget_helper.rb, line 35
def self.xunit2_path
  self.command_path('xunit.runner.console', 'xunit.console.exe')
end

# File lib/nuget_helper.rb, line 27
def self.xunit_clr4_path
  self.command_path('xunit.runners', 'xunit.console.clr4.exe')
end

# File lib/nuget_helper.rb, line 31
def self.xunit_path
  self.command_path('xunit.runners', 'xunit.console.exe')
end

# File lib/nuget_helper.rb, line 86
def self.first_command_path(library, exe)
  cmds = Dir.glob(File.join("**","packages","#{library}*","tools",exe))
  if cmds.any?
    command = File.expand_path cmds.first
    return command
  else
    return nil
  end
end

# File lib/nuget_helper.rb, line 78
def self.to_shell_string(command, parameters)
  parameters = '' if parameters.nil?
  if Gem.win_platform? 
    "#{command} #{parameters}"
  else
    "mono --runtime=v4.0 #{command} #{parameters} "
  end
end