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module Rake
# Makefile loader to be used with the import file loader.
class MakefileLoader
include Rake::DSL
SPACE_MARK = "\0"
# Load the makefile dependencies in +fn+.
def load(fn)
lines = File.read fn
lines.gsub!(/\\ /, SPACE_MARK)
lines.gsub!(/#[^\n]*\n/m, "")
lines.gsub!(/\\\n/, ' ')
lines.each_line do |line|
process_line(line)
end
end
private
# Process one logical line of makefile data.
def process_line(line)
file_tasks, args = line.split(':', 2)
return if args.nil?
dependents = args.split.map { |d| respace(d) }
file_tasks.scan(/\S+/) do |file_task|
file_task = respace(file_task)
file file_task => dependents
end
end
def respace(str)
str.tr SPACE_MARK, ' '
end
end
# Install the handler
Rake.application.add_loader('mf', MakefileLoader.new)
end
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