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Rakefile

@@ -5,34 +5,99 @@
 
 require 'open3'
 require 'rake/clean'
-require 'term/ansicolor'
 
-CLEAN.include 'build/boot'
+CROSS_GCC = '../eugenios/build/rootfs/bin/riscv32-unknown-linux-gnu-gcc'
+SYSROOT = '../eugenios/build/sysroot'
+QEMU = 'qemu-riscv32'
+STAGES = Dir.glob('boot/stage*.elna').collect { |stage| File.basename stage, '.elna' }.sort
+
+CLEAN.include 'build/boot', 'build/valid'
 
 directory 'build/boot'
+directory 'build/valid'
+
+task default: :boot
 
 desc 'Final stage'
-task default: ['build/boot/stage2b', 'build/boot/stage2b.s', 'boot/stage2.elna'] do |t|
-  exe, previous_output, source = t.prerequisites
+task boot: "build/valid/#{STAGES.last}"
+task boot: "build/valid/#{STAGES.last}.s"
+task boot: "boot/#{STAGES.last}.elna" do |t|
+  groupped = t.prerequisites.group_by { |stage| File.extname stage }.transform_values(&:first)
+  exe = groupped['']
+  expected = groupped['.s']
+  source = groupped['.elna']
 
   cat_arguments = ['cat', source]
   compiler_arguments = [QEMU, '-L', SYSROOT, exe]
-  diff_arguments = ['diff', '-Nur', '--text', previous_output, '-']
+  diff_arguments = ['diff', '-Nur', '--text', expected, '-']
   Open3.pipeline(cat_arguments, compiler_arguments, diff_arguments)
 end
 
-file 'build/boot/test.s' => ['build/boot/stage1', 'boot/test.elna'] do |t|
-  source, exe = t.prerequisites.partition { |prerequisite| prerequisite.end_with? '.elna' }
+desc 'Convert previous stage language into the current stage language'
+task :convert do
+  File.open('boot/stage4.elna', 'w') do |current_stage|
+    li_value = nil
 
-  File.open t.name, 'w' do |output|
-    assemble_stage output, exe, source
+    File.readlines('boot/stage3.elna').each do |line|
+      current_stage << line
+    end
   end
 end
 
-file 'build/boot/test' => ['build/boot/test.s', 'boot/common-boot.s'] do |t|
-  sh CROSS_GCC, '-nostdlib', '-o', t.name, *t.prerequisites
+STAGES.each do |stage|
+  previous = stage.delete_prefix('stage').to_i.pred
+
+  file "build/valid/#{stage}" => "build/valid/#{stage}.s" do |t|
+    sh CROSS_GCC, '-nostdlib', '-o', t.name, *t.prerequisites
+  end
+
+  file "build/valid/#{stage}.s" => ["build/boot/#{stage}", "boot/#{stage}.elna"] do |t|
+    exe, source = t.prerequisites
+
+    cat_arguments = ['cat', source]
+    compiler_arguments = [QEMU, '-L', SYSROOT, exe]
+    last_stdout, wait_threads = Open3.pipeline_r(cat_arguments, compiler_arguments)
+
+    IO.copy_stream last_stdout, t.name
+  end
+
+  file "build/boot/#{stage}" => "build/boot/#{stage}.s" do |t|
+    sh CROSS_GCC, '-nostdlib', '-o', t.name, *t.prerequisites
+  end
+
+  file "build/boot/#{stage}.s" => ["build/valid/stage#{previous}", "boot/#{stage}.elna"] do |t|
+    exe, source = t.prerequisites
+
+    cat_arguments = ['cat', source]
+    compiler_arguments = [QEMU, '-L', SYSROOT, exe]
+    last_stdout, wait_threads = Open3.pipeline_r(cat_arguments, compiler_arguments)
+
+    IO.copy_stream last_stdout, t.name
+  end
 end
 
-task test: 'build/boot/test' do |t|
-  sh QEMU, '-L', SYSROOT, t.prerequisites.first
+#
+# Stage 1.
+#
+
+file 'build/valid/stage1' => ['build/valid', 'build/valid/stage1.s'] do |t|
+  source = t.prerequisites.select { |prerequisite| prerequisite.end_with? '.s' }
+
+  sh CROSS_GCC, '-nostdlib', '-o', t.name, *source
+end
+
+file 'build/valid/stage1.s' => ['build/boot/stage1', 'boot/stage1.s', 'build/valid'] do |t|
+  source, exe, = t.prerequisites.partition { |prerequisite| prerequisite.end_with? '.s' }
+
+  cat_arguments = ['cat', *source]
+  compiler_arguments = [QEMU, '-L', SYSROOT, *exe]
+  last_stdout, wait_threads = Open3.pipeline_r(cat_arguments, compiler_arguments)
+
+  IO.copy_stream last_stdout, t.name
+end
+
+file 'build/boot/stage1' => ['build/boot', 'boot/stage1.s'] do |t|
+  source = t.prerequisites.select { |prerequisite| prerequisite.end_with? '.s' }
+
+  sh CROSS_GCC, '-nostdlib', '-o', t.name, *source
 end