Class: Rscons::Builders::Copy

Inherits:
Rscons::Builder show all
Defined in:
lib/rscons/builders/copy.rb

Overview

The Copy builder copies files/directories to new locations.

Direct Known Subclasses

Install

Instance Attribute Summary

Attributes inherited from Rscons::Builder

#build_step, #cache, #env, #preferred_ld, #side_effects, #sources, #target, #vars

Instance Method Summary collapse

Methods inherited from Rscons::Builder

#depends, extra_path, #finalize_command, name, #name, #print_run_message, #produces, #register_command, #standard_command, #wait_for

Constructor Details

#initialize(*args) ⇒ Copy

Construct builder.



9
10
11
12
 
# File 'lib/rscons/builders/copy.rb', line 9

def initialize(*args)
  super
  @install_builder = self.class.name == "Install"
end

Instance Method Details

#run(options) ⇒ Object

Run the builder to produce a build target.



15
16
17
18
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
 
# File 'lib/rscons/builders/copy.rb', line 15

def run(options)
  target_is_dir = (@sources.length > 1) ||
                  Dir.exist?(@sources.first) ||
                  Dir.exist?(@target)
  outdir = target_is_dir ? @target : File.dirname(@target)
  # Collect the list of files to copy over.
  file_map = {}
  if target_is_dir
    @sources.each do |src|
      if Dir.exist? src
        Dir.glob("#{src}/**/*", File::FNM_DOTMATCH).select do |f|
          File.file?(f)
        end.each do |subfile|
          subpath = Pathname.new(subfile).relative_path_from(Pathname.new(src)).to_s
          file_map[subfile] = "#{outdir}/#{subpath}"
        end
      else
        file_map[src] = "#{outdir}/#{File.basename(src)}"
      end
    end
  else
    file_map[sources.first] = target
  end
  printed_message = false
  file_map.each do |src, dest|
    # Check the cache and copy if necessary
    unless @cache.up_to_date?(dest, :Copy, [src], @env)
      unless printed_message
        message = "#{name} <source>#{Util.short_format_paths(@sources)}<reset> => <target>#{@target}<reset>"
        print_run_message(message, nil)
        printed_message = true
      end
      @cache.mkdir_p(File.dirname(dest), install: @install_builder)
      FileUtils.rm_f(dest)
      FileUtils.cp(src, dest, :preserve => true)
    end
    @cache.register_build(dest, :Copy, [src], @env, install: @install_builder)
  end
  (target_is_dir ? Dir.exist?(@target) : File.exist?(@target)) ? true : false
end