Module: UPM::Tool::DSL

Included in:
UPM::Tool
Defined in:
lib/upm/tool_dsl.rb

Instance Method Summary collapse

Instance Method Details

#cache_dir(dir) ⇒ Object 



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# File 'lib/upm/tool_dsl.rb', line 27

def cache_dir(dir)
  @cache_dir = Pathname.new(dir).expand_path
  @cache_dir.mkpath unless @cache_dir.exist?
end

#call_command(name, *args) ⇒ Object 



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# File 'lib/upm/tool_dsl.rb', line 153

def call_command(name, *args)
  if block = (@cmds[name] || @cmds[ALIASES[name]])
    block.call args
  else
    puts "Command #{name.inspect} not supported by #{@name.inspect}"
  end
end

#command(name, shell_command = nil, root: false, paged: false, highlight: nil, &block) ⇒ Object 



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# File 'lib/upm/tool_dsl.rb', line 41

def command(name, shell_command=nil, root: false, paged: false, highlight: nil, &block)
  @cmds ||= {}

  if block_given?

    if root and Process.uid != 0
      @cmds[name] = proc { exec("sudo", $PROGRAM_NAME, *ARGV) }
    else
      @cmds[name] = block
    end

  elsif shell_command

    if shell_command.is_a? String
      shell_command = shell_command.split
    elsif not shell_command.is_a? Array
      raise "Error: command argument must be a String or an Array; it was a #{cmd.class}"
    end

    @cmds[name] = proc do |args|
      query = highlight ? args.join("\\s+") : nil
      run(*shell_command, *args, paged: paged, root: root, highlight: query)
    end

  else
    raise "Error: Must supply a block or shell command"
  end
end

#config_dir(dir) ⇒ Object 



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# File 'lib/upm/tool_dsl.rb', line 32

def config_dir(dir)
  @config_dir = Pathname.new(dir).expand_path
  @config_dir.mkpath unless @config_dir.exist?
end

#curl(url) ⇒ Object 



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# File 'lib/upm/tool_dsl.rb', line 131

def curl(url)
  IO.popen(["curl", "-Ss", url], &:read)
rescue Errno::ENOENT
  puts "Error: 'curl' isn't installed. You need this!"
  exit 1
end

#database_age ⇒ Object 



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# File 'lib/upm/tool_dsl.rb', line 175

def database_age
  Time.now.to_i - database_lastupdate.to_i
end

#database_lastupdate ⇒ Object 



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# File 'lib/upm/tool_dsl.rb', line 171

def database_lastupdate
  database_lastupdate_file.exist? ? File.mtime(database_lastupdate_file) : 0
end

#database_lastupdate_file ⇒ Object 



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# File 'lib/upm/tool_dsl.rb', line 161

def database_lastupdate_file
  raise "Error: Tool 'name' is not set" unless @name
  raise "Error: 'cache_dir' is not set" unless @cache_dir
  @cache_dir/"#{@name}-last-update"
end

#database_needs_updating? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/upm/tool_dsl.rb', line 179

def database_needs_updating?
  database_age > @max_database_age
end

#database_updated! ⇒ Object 



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# File 'lib/upm/tool_dsl.rb', line 167

def database_updated!
  FileUtils.touch(database_lastupdate_file)
end

#help ⇒ Object 



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# File 'lib/upm/tool_dsl.rb', line 183

def help
  puts "    UPM version: #{File.read("#{__dir__}/../../VERSION")}"
  if osname = Tool.nice_os_name
    puts "    Detected OS: #{osname}"
  end

  puts "Package manager: #{@name}"
  puts
  puts "Available commands:"
  available = COMMAND_HELP.select do |name, desc|
    names = name.split("/")
    names.any? { |name| @cmds[name] }
  end

  max_width = available.map(&:first).map(&:size).max
  available.each do |name, desc|
    puts "  #{name.rjust(max_width)} | #{desc}"
  end
end

#identifying_binary(id_bin = nil) ⇒ Object 



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# File 'lib/upm/tool_dsl.rb', line 7

def identifying_binary(id_bin=nil)
  if id_bin
    @id_bin = id_bin
  else
    @id_bin || @name
  end
end

#max_database_age(age) ⇒ Object 



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# File 'lib/upm/tool_dsl.rb', line 23

def max_database_age(age)
  @max_database_age = age.to_i
end

#os(*args) ⇒ Object 



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# File 'lib/upm/tool_dsl.rb', line 19

def os(*args)
  args.any? ? @os = args : @os
end

#prefix(name) ⇒ Object 



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# File 'lib/upm/tool_dsl.rb', line 15

def prefix(name)
  @prefix = name
end

#print_files(*paths, include: nil, exclude: nil) ⇒ Object 



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# File 'lib/upm/tool_dsl.rb', line 138

def print_files(*paths, include: nil, exclude: nil)
  lesspipe do |less|
    paths.each do |path|
      less.puts "<8>=== <11>#{path} <8>========".colorize
      open(path) do |io|
        enum = io.each_line
        enum = enum.grep(include) if include
        enum = enum.reject { |line| line[exclude] } if exclude
        enum.each { |line| less.puts line }
      end
      less.puts
    end
  end
end

#run(*args, root: false, paged: false, grep: nil, highlight: nil, sort: false) ⇒ Object

Helpers



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# File 'lib/upm/tool_dsl.rb', line 72

def run(*args, root: false, paged: false, grep: nil, highlight: nil, sort: false)
  if root
    if Process.uid != 0
      if File.which("sudo")
        args.unshift "sudo"
      elsif File.which("su")
        args = ["su", "-c"] + args
      else
        raise "Error: You must be root to run this command. (And I couldn't find the 'sudo' *or* 'su' commands.)"
      end
    end
  end


  unless paged or grep or sort
    system(*args)
  else
    IO.popen(args, err: [:child, :out]) do |command_io|

      # if grep
      #   pattern = grep.is_a?(Regexp) ? grep.source : grep.to_s
      #   grep_io = IO.popen(["grep", "--color=always", "-Ei", pattern], "w+")
      #   IO.copy_stream(command_io, grep_io)
      #   grep_io.close_write
      #   command_io = grep_io
      # end

      # if paged
      #   lesspipe do |less|
      #     IO.copy_stream(command_io, less)
      #   end
      # else
      #   IO.copy_stream(command_io, STDOUT)
      # end

      # highlight_proc = if highlight
      #   proc { |line| line.gsub(highlight) { |m| "\e[33;1m#{m}\e[0m" } }
      # else
      #   proc { |line| line }
      # end

      lesspipe(disabled: !paged, search: highlight, always: false) do |less|
        each_proc = if grep
          proc { |line| less.puts line if line[grep] }
        else
          proc { |line| less.puts line }
        end

        lines = command_io.each_line
        lines = lines.to_a.sort if sort
        lines.each(&each_proc)
      end

    end

    $?.to_i == 0
  end
end

#set_default(key, value) ⇒ Object 



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# File 'lib/upm/tool_dsl.rb', line 37

def set_default(key, value)
  send(key, value)
end