75 lines
2.4 KiB
Ruby

require "pathname"
module Rscons
module Builders
# The Copy builder copies files/directories to new locations.
class Copy < Builder
# Construct builder.
def initialize(*args)
super
@install_builder = self.class.name == "Install"
@nop = @install_builder && !Rscons.application.operation("install")
end
# Return whether the builder is a no-op.
#
# @return [Boolean]
# Whether the builder is a no-op.
def nop?
@nop
end
# Run the builder to produce a build target.
def run(options)
if @nop
true
else
target_is_dir = (@sources.length > 1) ||
Dir.exists?(@sources.first) ||
Dir.exists?(@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.exists? 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.cp(src, dest, :preserve => true)
end
@cache.register_build(dest, :Copy, [src], @env, install: @install_builder)
end
(target_is_dir ? Dir.exists?(@target) : File.exists?(@target)) ? true : false
end
end
end
# The Install builder is identical to the Copy builder.
class Install < Copy; end
end
end