From fcbf63e62c627deae76c1b8cb8c0876c536ed811 Mon Sep 17 00:00:00 2001
From: Jari Vetoniemi <jari.vetoniemi@indooratlas.com>
Date: Mon, 16 Mar 2020 18:49:26 +0900
Subject: Fresh start

---
 jni/ruby/lib/rake/loaders/makefile.rb | 40 +++++++++++++++++++++++++++++++++++
 1 file changed, 40 insertions(+)
 create mode 100644 jni/ruby/lib/rake/loaders/makefile.rb

(limited to 'jni/ruby/lib/rake/loaders/makefile.rb')

diff --git a/jni/ruby/lib/rake/loaders/makefile.rb b/jni/ruby/lib/rake/loaders/makefile.rb
new file mode 100644
index 0000000..4ece432
--- /dev/null
+++ b/jni/ruby/lib/rake/loaders/makefile.rb
@@ -0,0 +1,40 @@
+module Rake
+
+  # Makefile loader to be used with the import file loader.
+  class MakefileLoader
+    include Rake::DSL
+
+    SPACE_MARK = "\0"
+
+    # Load the makefile dependencies in +fn+.
+    def load(fn)
+      lines = File.read fn
+      lines.gsub!(/\\ /, SPACE_MARK)
+      lines.gsub!(/#[^\n]*\n/m, "")
+      lines.gsub!(/\\\n/, ' ')
+      lines.each_line do |line|
+        process_line(line)
+      end
+    end
+
+    private
+
+    # Process one logical line of makefile data.
+    def process_line(line)
+      file_tasks, args = line.split(':', 2)
+      return if args.nil?
+      dependents = args.split.map { |d| respace(d) }
+      file_tasks.scan(/\S+/) do |file_task|
+        file_task = respace(file_task)
+        file file_task => dependents
+      end
+    end
+
+    def respace(str)
+      str.tr SPACE_MARK, ' '
+    end
+  end
+
+  # Install the handler
+  Rake.application.add_loader('mf', MakefileLoader.new)
+end
-- 
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