Module: Rscons::Cli

Defined in:
lib/rscons/cli.rb

Overview

Command-Line Interface functionality.

Constant Summary collapse

DEFAULT_RSCONSFILES =

Default files to look for to execute if none specified.

%w[Rsconsfile Rsconsfile.rb]

Class Method Summary collapse

Class Method Details

.run(argv) ⇒ void

This method returns an undefined value.

Run the Rscons CLI.


19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
# File 'lib/rscons/cli.rb', line 19

def run(argv)
  argv = argv.dup
  rsconsfile = nil

  OptionParser.new do |opts|
    opts.banner = "Usage: #{$0} [options]"

    opts.separator ""
    opts.separator "Options:"

    opts.on("-c", "--clean", "Perform clean operation") do
      Rscons.clean
      exit 0
    end

    opts.on("-f FILE", "Execute FILE (default Rsconsfile)") do |f|
      rsconsfile = f
    end

    opts.on("-j NTHREADS", "Use NTHREADS parallel jobs (local default #{Rscons.n_threads})") do |n_threads|
      Rscons.n_threads = n_threads.to_i
    end

    opts.on("-r", "--color MODE", "Set color mode (off, auto, force)") do |color_mode|
      case color_mode
      when "off"
        Rscons.do_ansi_color = false
      when "force"
        Rscons.do_ansi_color = true
      end
    end

    opts.on_tail("--version", "Show version") do
      puts "Rscons version #{Rscons::VERSION}"
      exit 0
    end

    opts.on_tail("-h", "--help", "Show this help.") do
      puts opts
      exit 0
    end

  end.parse!(argv)

  if rsconsfile
    unless File.exists?(rsconsfile)
      $stderr.puts "Cannot read #{rsconsfile}"
      exit 1
    end
  else
    rsconsfile = DEFAULT_RSCONSFILES.find do |f|
      File.exists?(f)
    end
    unless rsconsfile
      $stderr.puts "Could not find the Rsconsfile to execute."
      $stderr.puts "Looked in: [#{DEFAULT_RSCONSFILES.join(", ")}]"
      exit 1
    end
  end

  begin
    load rsconsfile
  rescue Rscons::BuildError => e
    exit 1
  end

  exit 0
end