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47 lines
1.4 KiB
Ruby
47 lines
1.4 KiB
Ruby
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# modified version of Rake's provided make-style dependency loader
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# customizations:
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# (1) handles windows drives in paths -- colons don't confuse task demarcation
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# (2) handles spaces in directory paths
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module Rake
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# Makefile loader to be used with the import file loader.
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class MakefileLoader
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# Load the makefile dependencies in +fn+.
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def load(fn)
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open(fn) do |mf|
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lines = mf.read
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lines.gsub!(/#[^\n]*\n/m, "") # remove comments
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lines.gsub!(/\\\n/, ' ') # string together line continuations into single line
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lines.split("\n").each do |line|
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process_line(line)
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end
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end
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end
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private
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# Process one logical line of makefile data.
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def process_line(line)
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# split on presence of task demaractor followed by space (i.e don't get confused by a colon in a win path)
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file_tasks, args = line.split(/:\s/)
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return if args.nil?
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# split at non-escaped space boundary between files (i.e. escaped spaces in paths are left alone)
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dependents = args.split(/\b\s+/)
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# replace escaped spaces and clean up any extra whitespace
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dependents.map! { |path| path.gsub(/\\ /, ' ').strip }
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file_tasks.strip.split.each do |file_task|
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file file_task => dependents
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end
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end
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end
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# Install the handler
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Rake.application.add_loader('mf', MakefileLoader.new)
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end
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