1 files changed, 32 insertions, 6 deletions
diff --git a/Rakefile b/Rakefile
index 71d875a..e145b58 100644
--- a/Rakefile
+++ b/Rakefile
@@ -19,7 +19,10 @@ end
 
 directory 'build'
 
-task default: :boot
+task :default do
+  Rake::Task["build/valid/#{STAGES.last}/cl"].invoke
+  Rake::Task["boot"].invoke
+end
 
 desc 'Final stage'
 task boot: "build/valid/#{STAGES.last}/cl"
@@ -34,11 +37,34 @@ task boot: "boot/#{STAGES.last}/cl.elna" do |t|
   Open3.pipeline(cat_arguments, run(exe), diff_arguments)
 end
 
-desc 'Convert previous stage language into the current stage language'
-task :convert do
-  File.open('boot/stage25/cl.elna', 'w') do |current_stage|
-    File.readlines('boot/stage24/cl.elna').each do |line|
-      current_stage << line
+namespace :stage do
+  stage_number = STAGES.last.delete_prefix('stage').to_i
+
+  desc 'Create a new stabe by duplicating the last one'
+  task :new do
+    new_stage = "stage#{stage_number.succ}"
+    cp_r "boot/stage#{stage_number}", "boot/#{new_stage}"
+    STAGES << new_stage
+    Rake::Task['ninja'].invoke
+  end
+
+  desc 'Delete the last stage'
+  task :drop do
+    rm_r "boot/stage#{stage_number}"
+    STAGES.pop
+    Rake::Task['ninja'].invoke
+  end
+
+  desc 'Convert previous stage language into the current stage language'
+  task :convert do
+    from = "boot/stage#{stage_number.pred}/cl.elna"
+    to = "boot/stage#{stage_number}/cl.elna"
+    puts "Converting #{from} to #{to}."
+
+    File.open(to, 'w') do |current_stage|
+      File.readlines(from).each do |line|
+        current_stage << line
+      end
     end
   end
 end