lib/technologist/git_repository.rb in technologist-0.1.0 vs lib/technologist/git_repository.rb in technologist-0.2.0

@@ -16,32 +16,53 @@
     #
     # @param file_name [String] the file name
     #
     # @return [String] The content of the file or nil if the file cannot be found.
     def file_content(file_name)
-      file = find_file(file_name)
+      file = find_blob(file_name)
 
       file.content if file
     end
 
-    # Recursively searches for the file identified by `file_name`
-    # in all subdirectories in the repository.
+    # Recursively searches for the blob identified by `blob_name`
+    # in all subdirectories in the repository. A blob is usually either
+    # a file or a directory.
     #
-    # @param file_name [String] the file name
-    # @param current_tree [Rugged::Tree] the git directory tree in which to look for the file.
+    # @param blob_name [String] the blob name
+    # @param current_tree [Rugged::Tree] the git directory tree in which to look for the blob.
     #   Defaults to the root tree (see `#root_tree`).
     #
-    # @return [Rugged::Blob] The file blob or nil if it cannot be found.
-    def find_file(file_name, current_tree = root_tree)
-      file = current_tree[file_name]
+    # @return [Rugged::Blob] The blob blob or nil if it cannot be found.
+    def find_blob(blob_name, current_tree = root_tree)
+      blob = current_tree[blob_name]
 
-      if file
-        repository.lookup(file[:oid])
+      if blob
+        repository.lookup(blob[:oid])
       else
         current_tree.each_tree do |sub_tree|
-          file = find_file(file_name, repository.lookup(sub_tree[:oid]))
-          break file if file
+          blob = find_blob(blob_name, repository.lookup(sub_tree[:oid]))
+          break blob if blob
         end
       end
+    end
+
+    # Looks for a directory and returns true when the directory
+    # can be found.
+    #
+    # @param directory_name [String] the directory name
+    #
+    # @return [Boolean] true if the directory can be found.
+    def directory_exists?(directory_name)
+      !!find_blob(directory_name)
+    end
+
+    # Looks for a file and returns true when the file
+    # can be found.
+    #
+    # @param file_name [String] the file name
+    #
+    # @return [Boolean] true if the file can be found.
+    def file_exists?(file_name)
+      !!find_blob(file_name)
     end
   end
 end