Fixes CHEF-3307

Use metadata name when loading cookbook

If a name attribute is loaded from a cookbooks metadata, use this for
dependency checks and references as specified in documentation. Ensure real
pathname is retained so that manifests can still be generated correctly.

In addition we must read the metadata implicitly when cookbooks are loaded to
ensure we are using the correct name.

Also include a deprecation warning when encountering missing names in metadata
as this is a planned breaking change in Chef 12.

4 files changed, 19 insertions, 11 deletions

diff --git a/lib/chef/cookbook/cookbook_version_loader.rb b/lib/chef/cookbook/cookbook_version_loader.rb
index e98da77d7f..a990489ff6 100644
--- a/lib/chef/cookbook/cookbook_version_loader.rb
+++ b/lib/chef/cookbook/cookbook_version_loader.rb
@@ -18,13 +18,15 @@ class Chef
                                       :provider_filenames]
 
 
+      attr_reader :cookbook_pathname
       attr_reader :cookbook_name
       attr_reader :cookbook_settings
       attr_reader :metadata_filenames
 
       def initialize(path, chefignore=nil)
         @cookbook_path = File.expand_path( path )
-        @cookbook_name = File.basename( path )
+        @cookbook_pathname = File.basename( path )
+        @cookbook_name = @cookbook_pathname
         @chefignore = chefignore
         @metadata = Hash.new
         @relative_path = /#{Regexp.escape(@cookbook_path)}\/(.+)$/
@@ -64,14 +66,18 @@ class Chef
 
         if empty?
           Chef::Log.warn "found a directory #{cookbook_name} in the cookbook path, but it contains no cookbook files. skipping."
+        else
+          metadata = @metadata.is_a?(Metadata) ? @metadata : metadata(nil)
+          @cookbook_name = metadata.name.to_sym unless metadata.name.nil?
         end
+
         @cookbook_settings
       end
 
       def cookbook_version
         return nil if empty?
 
-        Chef::CookbookVersion.new(@cookbook_name.to_sym).tap do |c|
+        Chef::CookbookVersion.new(@cookbook_pathname.to_sym).tap do |c|
           c.root_dir             = @cookbook_path
           c.attribute_filenames  = cookbook_settings[:attribute_filenames].values
           c.definition_filenames = cookbook_settings[:definition_filenames].values
@@ -84,6 +90,7 @@ class Chef
           c.root_filenames       = cookbook_settings[:root_filenames].values
           c.metadata_filenames   = @metadata_filenames
           c.metadata             = metadata(c)
+          c.name                 = c.metadata.name.to_sym
         end
       end
 
@@ -100,6 +107,7 @@ class Chef
             raise RuntimeError, "Invalid metadata file: #{metadata_file} for cookbook: #{cookbook_version}"
           end
         end
+        Chef::Log.warn "Inferred cookbook names are deprecated, please set a name in metadata" unless @metadata.name
         @metadata
       end
 
diff --git a/lib/chef/cookbook/file_system_file_vendor.rb b/lib/chef/cookbook/file_system_file_vendor.rb
index 8896e3ed30..926e26e03d 100644
--- a/lib/chef/cookbook/file_system_file_vendor.rb
+++ b/lib/chef/cookbook/file_system_file_vendor.rb
@@ -41,10 +41,10 @@ class Chef
       # Chef::Config.cookbook_path file hierarchy for the requested
       # file.
       def get_filename(filename)
-        location = @repo_paths.inject(nil) do |memo, basepath|
-          candidate_location = File.join(basepath, @cookbook_name, filename)
-          memo = candidate_location if File.exist?(candidate_location)
-          memo
+        cookbooks = Chef::CookbookLoader.new(@repo_paths).load_cookbooks
+        if cookbooks.has_key?(@cookbook_name)
+          location = File.join(cookbooks[@cookbook_name].root_dir, filename)
+          location = nil unless File.exist?(location)
         end
         raise "File #{filename} does not exist for cookbook #{@cookbook_name}" unless location
 
diff --git a/lib/chef/cookbook/metadata.rb b/lib/chef/cookbook/metadata.rb
index 18368bd99f..0cd740ea8f 100644
--- a/lib/chef/cookbook/metadata.rb
+++ b/lib/chef/cookbook/metadata.rb
@@ -91,7 +91,7 @@ class Chef
       # metadata<Chef::Cookbook::Metadata>
       def initialize(cookbook=nil, maintainer='YOUR_COMPANY_NAME', maintainer_email='YOUR_EMAIL', license='none')
         @cookbook = cookbook
-        @name = cookbook ? cookbook.name : ""
+        @name = cookbook ? cookbook.name : nil
         @long_description = ""
         self.maintainer(maintainer)
         self.maintainer_email(maintainer_email)
diff --git a/lib/chef/cookbook/syntax_check.rb b/lib/chef/cookbook/syntax_check.rb
index 40ba070796..09905bd9a6 100644
--- a/lib/chef/cookbook/syntax_check.rb
+++ b/lib/chef/cookbook/syntax_check.rb
@@ -84,14 +84,14 @@ class Chef
       # validated.
       attr_reader :validated_files
 
-      # Creates a new SyntaxCheck given the +cookbook_name+ and a +cookbook_path+.
+      # Creates a new SyntaxCheck given the +cookbook_pathname+ and a +cookbook_path+.
       # If no +cookbook_path+ is given, +Chef::Config.cookbook_path+ is used.
-      def self.for_cookbook(cookbook_name, cookbook_path=nil)
+      def self.for_cookbook(cookbook_pathname, cookbook_path=nil)
         cookbook_path ||= Chef::Config.cookbook_path
         unless cookbook_path
-          raise ArgumentError, "Cannot find cookbook #{cookbook_name} unless Chef::Config.cookbook_path is set or an explicit cookbook path is given"
+          raise ArgumentError, "Cannot find cookbook #{cookbook_pathname} unless Chef::Config.cookbook_path is set or an explicit cookbook path is given"
         end
-        new(File.join(cookbook_path, cookbook_name.to_s))
+        new(File.join(cookbook_path, cookbook_pathname.to_s))
       end
 
       # Create a new SyntaxCheck object