72 lines
2.6 KiB
Ruby
Vendored
72 lines
2.6 KiB
Ruby
Vendored
all_prerequisites = ->(task_name, prereqs) do
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Rake::Task[task_name].prerequisites.each do |prereq_name|
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next if prereqs[prereq_name]
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prereqs[prereq_name] = true
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all_prerequisites.(Rake::Task[prereq_name].name, prereqs)
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end
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end
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MRuby.each_target do |build|
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presym = build.presym
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include_dir = "#{build.build_dir}/include"
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build.compilers.each{|c| c.include_paths << include_dir}
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build.gems.each{|gem| gem.compilers.each{|c| c.include_paths << include_dir}}
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prereqs = {}
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ppps = []
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build_dir = "#{build.build_dir}/"
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mrbc_build_dir = "#{build.mrbc_build.build_dir}/" if build.mrbc_build
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build.products.each{|product| all_prerequisites.(product, prereqs)}
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prereqs.each_key do |prereq|
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next unless File.extname(prereq) == build.exts.object
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next unless prereq.start_with?(build_dir)
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next if mrbc_build_dir && prereq.start_with?(mrbc_build_dir)
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ppp = prereq.ext(build.exts.presym_preprocessed)
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if Rake.application.lookup(ppp) ||
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Rake.application.enhance_with_matching_rule(ppp)
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ppps << ppp
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end
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end
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presym_task = file presym.list_path => ppps do
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presyms = presym.scan(ppps)
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current_presyms = presym.read_list if File.exist?(presym.list_path)
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if presyms != current_presyms
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mkdir_p presym.header_dir
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%w[id table].each do |type|
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presym.send("write_#{type}_header", presyms)
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end
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presym.write_list(presyms)
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end
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end
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# Don't directly write dependency tasks in the "task" arguments.
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# The rake system tracks dependencies recursively
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# (see Rake::Task#all_prerequisite_tasks and #collect_prerequisites).
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# Therefore, indirect dependencies from ".o" to ".pi" must be eliminated.
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# ref. https://github.com/mruby/mruby/issues/6721
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# This task acts a proxy-like for the "presym.list_path" task.
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presym_proxy = task "gensym:update:#{build.name}" do
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presym_task.invoke
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end
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# Override the "timestamp" method to reflect the presym file.
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presym_proxy.define_singleton_method :timestamp do
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presym_task.timestamp
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end
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# Ensure .o files depend on presym headers being generated.
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# This is critical when a build's .o files are compiled during another
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# build's presym scanning chain (before :gensym completes), e.g.:
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# - internal sub-builds (mrbc) triggered by their parent build
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# - the implicit host build triggered by a cross build needing mrbc
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prereqs.each_key do |prereq|
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next unless File.extname(prereq) == build.exts.object
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next unless prereq.start_with?(build_dir)
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next if mrbc_build_dir && prereq.start_with?(mrbc_build_dir)
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file prereq => presym_proxy
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end
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task gensym: presym.list_path
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end
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