Merge pull request #348 from maxmeyer/feature/current_command

make the current command chain accessible in command

Author: sferik

lib/thor/invocation.rb

@@ -25,6 +25,11 @@ def initialize(args = [], options = {}, config = {}, &block) #:nodoc:
       super
     end
 
+    # Make the current command chain accessible with in a Thor-(sub)command
+    def current_command_chain
+      @_invocations.values.flatten.map(&:to_sym)
+    end
+
     # Receives a name and invokes it. The name can be a string (either "command" or
     # "namespace:command"), a Thor::Command, a Class or a Thor instance. If the
     # command cannot be guessed by name, it can also be supplied as second argument.

spec/fixtures/invoke.thor

@@ -116,3 +116,16 @@ class H < Thor::Group
   class_option :defined, :type => :boolean, :default => true
   invoke_from_option :defined
 end
+
+class I < Thor
+  desc "two", "Two"
+  def two
+    current_command_chain
+  end
+end
+
+class J < Thor
+  desc "i", "I"
+  subcommand :one, I
+end
+

spec/invocation_spec.rb

@@ -58,7 +58,19 @@
       expect(A.new([], :defaulted_value => 'not default').invoke('b:four')).to eq('not default')
     end
 
-    it 'dump configuration values to be used in the invoked class' do
+    it "returns the command chain" do
+      expect(I.new.invoke("two")).to eq([ :two ])
+
+      if RUBY_VERSION < '1.9.3'
+        result = J.start(["one", "two" ])
+        expect(result).to include(:one)
+        expect(result).to include(:two)
+      else
+        expect(J.start(["one", "two" ])).to eq([ :one, :two ])
+      end
+    end
+
+    it "dump configuration values to be used in the invoked class" do
       base = A.new
       expect(base.invoke('b:three').shell).to eq(base.shell)
     end