apkbuild-gem-resolver: get aport version and gem directly from augeas

apkbuild-gem-resolver.in

@@ -46,10 +46,8 @@ class Package
     pkg
   end
 
-  def initialize name, gem, version
+  def initialize name
     @name = name
-    @gem = gem
-    @version = version
     @depends = []
     @users = []
     @@packages[name] = self
@@ -59,7 +57,7 @@ class Package
     @depends << name
   end
 
-  attr_reader :gem, :name, :version
+  attr_reader :name
 
   def depends
     for dep in @depends
@@ -83,21 +81,30 @@ end
 
 class Aport < Package
   def initialize path
-    name = path.split('/')[-1]
+    super path.split('/')[-1]
+    @path = path + '/APKBUILD/'
 
-    get = proc{ |param|
-      res = @@augeas.get(path + '/APKBUILD/' + param)
-      raise param + ' not defined for ' + name unless res
-      res
-    }
-
-    super name, get.call('_gemname'), get.call('pkgver')
-
-    for dep in `echo #{get.call('depends')}`.split
+    for dep in `echo #{get_param 'depends'}`.split
       # ruby-gems: workaround for v2.6
       add_dependency dep if dep.start_with?('ruby-') && dep != 'ruby-gems'
     end
   end
+
+  def gem
+    get_param '_gemname'
+  end
+
+  def version
+    get_param 'pkgver'
+  end
+
+  private
+
+  def get_param name
+    value = @@augeas.get(@path + name)
+    raise name + ' not defined for ' + @name unless value
+    value
+  end
 end
 
 class Subpackage < Package
@@ -140,12 +147,7 @@ class Subpackage < Package
 
   def self.initialize version
     for name, attrs in RUBY_SUBPACKAGES[version]
-      gem, version, *deps = attrs
-      pkg = new name, gem, version
-      for dep in deps
-        pkg.add_dependency dep
-      end
-      @@subpackages << pkg
+      new name, attrs
     end
   end
 
@@ -154,6 +156,17 @@ class Subpackage < Package
       yield pkg
     end
   end
+
+  def initialize name, attrs
+    super name
+    @gem, @version, *deps = attrs
+    for dep in deps
+      add_dependency dep
+    end
+    @@subpackages << self
+  end
+
+  attr_reader :gem, :version
 end