144 lines
4.5 KiB
Ruby
144 lines
4.5 KiB
Ruby
require 'pathname'
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require 'rake/clean'
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require 'open3'
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M2C = 'gm2' # Modula-2 compiler.
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stage_compiler = Pathname.new 'build/stage1/elna'
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directory 'build/stage1'
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directory 'build/source'
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directory 'build/self'
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CLEAN.include 'build'
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rule(/build\/stage1\/.+\.o$/ => ->(file) {
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path = Pathname.new('boot/stage1/source') + Pathname.new(file).basename
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['build/stage1', path.sub_ext('.def'), path.sub_ext('.mod')]
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}) do |t|
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sources = t.prerequisites.filter { |f| f.end_with? '.mod' }
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sh M2C, '-c', '-I', 'boot/stage1/source', '-o', t.name, *sources
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end
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file 'build/stage1/elna' => FileList['boot/stage1/source/*'].map { |file|
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File.join 'build', 'stage1', Pathname.new(file).basename.sub_ext('.o')
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} do |t|
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sh M2C, '-o', t.name, *t.prerequisites
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end
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file 'build/stage1/Compiler.o' => ['build/stage1', 'boot/stage1/source/Compiler.mod'] do |t|
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sources = t.prerequisites.filter { |f| f.end_with? '.mod' }
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sh M2C, '-fscaffold-main', '-c', '-I', 'boot/stage1/source', '-o', t.name, *sources
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end
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['source', 'self'].each do |sub|
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rule(/build\/#{sub}\/.+\.mod$/ => [
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"build/#{sub}", stage_compiler.to_path,
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->(file) { File.join('source', Pathname.new(file).basename.sub_ext('.elna')) }
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]) do |t|
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sources, compiler = t.prerequisites
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.reject { |f| File.directory? f }
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.partition { |f| f.end_with? '.elna' }
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File.open t.name, 'w' do |output|
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compiler_command = compiler + sources
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compiler_command << '-o'
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compiler_command << Pathname.new(t.name).sub_ext('.def').to_path
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puts
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puts(compiler_command * ' ')
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Open3.popen2(*compiler_command) do |cl_in, cl_out|
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cl_in.close
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IO.copy_stream cl_out, output
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cl_out.close
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end
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end
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end
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rule(/build\/#{sub}\/.+\.o$/ => ->(file) {
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path = Pathname.new(file).relative_path_from('build')
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result = []
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result << File.join('source', path.basename.sub_ext('.def'))
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result << File.join('build', path.sub_ext('.mod'))
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}) do |t|
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sources = t.prerequisites.filter { |f| f.end_with? '.mod' }
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sh M2C, '-c', '-I', 'source', '-o', t.name, *sources
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end
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file "build/#{sub}/Compiler.o" => ["build/#{sub}/Compiler.mod"] do |t|
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sh M2C, '-fscaffold-main', '-c', '-I', 'source', '-o', t.name, *t.prerequisites
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end
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stage_compiler = Pathname.new('build') + sub + 'elna'
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file stage_compiler => FileList["source/*.elna"].map { |file|
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File.join 'build', sub, Pathname.new(file).basename.sub_ext('.o')
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} do |t|
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sh M2C, '-o', t.name, *t.prerequisites
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end
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end
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task default: 'build/self/elna'
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task default: 'build/self/Compiler.mod'
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task default: 'source/Compiler.elna'
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task :default do |t|
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exe, previous_output, source = t.prerequisites
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exe_arguments = [exe, source]
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diff_arguments = ['diff', '-Nur', '--text', previous_output, '-']
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puts [exe, diff_arguments * ' '].join(' | ')
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Open3.pipeline exe_arguments, diff_arguments
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end
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task :backport do
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FileList['source/*.elna'].each do |file|
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source_path = Pathname.new file
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source = File.read source_path
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current_procedure = nil
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target = ''
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module_name = source_path.basename.sub_ext('')
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source
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.gsub(/^(var|type|const|begin)/) { |match| match.upcase }
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.gsub(/\b(record|nil|or|false|true)\b/) { |match| match.upcase }
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.gsub(/proc\(/, 'PROCEDURE(')
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.gsub(/ & /, ' AND ')
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.gsub(/ -> /, ': ')
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.gsub(/program;/, "MODULE #{module_name};")
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.gsub(/\bmodule;/, "IMPLEMENTATION MODULE #{module_name};")
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.gsub(/end\./, "END #{module_name}.")
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.gsub(/([[:space:]]*)end(;?)$/, '\1END\2')
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.gsub(/^([[:space:]]*)(while|return|if)\b/) { |match| match.upcase }
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.gsub(/^from ([[:alnum:]]+) import/, 'FROM \1 IMPORT')
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.gsub(/ \^([[:alnum:]])/, ' POINTER TO \1')
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.gsub(/(then|do)$/) { |match| match.upcase }
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.gsub(/(:|=) \[([[:digit:]]+)\]/, '\1 ARRAY[1..\2] OF ')
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.each_line do |line|
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if line.start_with? 'proc'
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current_procedure = line[5...line.index('(')]
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line = 'PROCEDURE ' + line[5..].gsub(',', ';')
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elsif line.start_with?('END;') && !current_procedure.nil?
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line = "END #{current_procedure};"
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current_proceure = nil
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elsif line.start_with?('end')
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line = 'END ' + line[4..]
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end
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target += line
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end
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target_path = Pathname.new('boot/stage1/source') + source_path.basename.sub_ext('.mod')
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File.write target_path, target
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end
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FileList['source/*.def'].each do |file|
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cp file, File.join('boot/stage1/source', Pathname.new(file).basename)
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end
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end
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