[Spec] Strip indentation to prefix_header and to prepare_command

Closes #51

Author: fabiopelosin

CHANGELOG.md

@@ -1,5 +1,15 @@
 # CocoaPods Core Changelog
 
+## Master
+
+##### Enhancements
+
+* The specification now strips the indentation of the `prefix_header` and
+  `prepare_command` to aide their declaration as a here document (similarly to
+  what it already does with the description).  
+  [Fabio Pelosin][irrationalfab]
+  [#51](https://github.com/CocoaPods/Core/issues/51)
+
 ## 0.31.0
 
 ##### Enhancements
@@ -18,3 +28,6 @@
 ## 0.30.0
 
 Introduction of the Changelog.
+
+[irrationalfab]: https://github.com/irrationalfab
+

lib/cocoapods-core/specification/consumer.rb

@@ -347,7 +347,10 @@ def prepare_hook_name(attr)
       # @return [String] the prefix header.
       #
       def _prepare_prefix_header_contents(value)
-        value.is_a?(Array) ? value * "\n" : value
+        if value
+          value = value.join("\n") if value.is_a?(Array)
+          value.strip_heredoc.chomp
+        end
       end
 
       # Ensures that the file patterns of the resource bundles are contained in

lib/cocoapods-core/specification/root_attribute_accessors.rb

@@ -121,7 +121,7 @@ def summary
         #
         def description
           description = attributes_hash["description"]
-          description.strip_heredoc if description
+          description.strip_heredoc.chomp if description
         end
 
         # @return [Array<String>] The list of the URL for the screenshots of
@@ -143,7 +143,8 @@ def documentation_url
         # @return [String, Nil] The prepare command of the Pod if specified.
         #
         def prepare_command
-          attributes_hash["prepare_command"]
+          command = attributes_hash["prepare_command"]
+          command.strip_heredoc.chomp if command
         end
 
         #---------------------------------------------------------------------#

spec/specification/consumer_spec.rb

@@ -179,7 +179,16 @@ module Pod
       end
 
       it "allows to specify the contents of the prefix header as an array" do
-        @spec.prefix_header_contents = '#import <UIKit/UIKit.h>', '#import <Foundation/Foundation.h>'
+        @spec.prefix_header_contents = ['#import <UIKit/UIKit.h>', '#import <Foundation/Foundation.h>']
+        @consumer.prefix_header_contents.should == "#import <UIKit/UIKit.h>\n#import <Foundation/Foundation.h>"
+      end
+
+      it "strips the indentation of the prefix headers" do
+        headers = <<-DESC
+          #import <UIKit/UIKit.h>
+          #import <Foundation/Foundation.h>
+        DESC
+        @spec.prefix_header_contents = headers
         @consumer.prefix_header_contents.should == "#import <UIKit/UIKit.h>\n#import <Foundation/Foundation.h>"
       end
 

spec/specification/root_attribute_accessors_spec.rb

@@ -114,7 +114,7 @@ module Pod
         Line2
       DESC
       @spec.description = desc
-      @spec.description.should == "Line1\nLine2\n"
+      @spec.description.should == "Line1\nLine2"
     end
 
     it "returns the screenshots" do
@@ -127,8 +127,11 @@ module Pod
       @spec.screenshots.should == ['www.example.com/img1.png']
     end
 
-    it "returns the prepare_command" do
-      @spec.prepare_command = 'ruby prepare_script.rb'
+    it "returns the prepare command stripping the indentation" do
+      command = <<-DESC
+        ruby prepare_script.rb
+      DESC
+      @spec.prepare_command = command
       @spec.prepare_command.should == 'ruby prepare_script.rb'
     end