Lazy-load fileutils

Since fileutils is a gem as of 2.5

lib/thor/actions.rb

@@ -1,4 +1,3 @@
-require "fileutils"
 require "uri"
 require "thor/core_ext/io_binary_read"
 require "thor/actions/create_file"
@@ -175,13 +174,15 @@ def inside(dir = "", config = {}, &block)
 
       # If the directory doesnt exist and we're not pretending
       if !File.exist?(destination_root) && !pretend
+        require "fileutils"
         FileUtils.mkdir_p(destination_root)
       end
 
       if pretend
         # In pretend mode, just yield down to the block
         block.arity == 1 ? yield(destination_root) : yield
       else
+        require "fileutils"
         FileUtils.cd(destination_root) { block.arity == 1 ? yield(destination_root) : yield }
       end
 

lib/thor/actions/create_file.rb

@@ -58,6 +58,7 @@ def render
 
       def invoke!
         invoke_with_conflict_check do
+          require "fileutils"
           FileUtils.mkdir_p(File.dirname(destination))
           File.open(destination, "wb") { |f| f.write render }
         end

lib/thor/actions/create_link.rb

@@ -38,6 +38,7 @@ def identical?
 
       def invoke!
         invoke_with_conflict_check do
+          require "fileutils"
           FileUtils.mkdir_p(File.dirname(destination))
           # Create a symlink by default
           config[:symbolic] = true if config[:symbolic].nil?

lib/thor/actions/empty_directory.rb

@@ -48,12 +48,14 @@ def exists?
 
       def invoke!
         invoke_with_conflict_check do
+          require "fileutils"
           ::FileUtils.mkdir_p(destination)
         end
       end
 
       def revoke!
         say_status :remove, :red
+        require "fileutils"
         ::FileUtils.rm_rf(destination) if !pretend? && exists?
         given_destination
       end

lib/thor/actions/file_manipulation.rb

@@ -140,7 +140,10 @@ def chmod(path, mode, config = {})
       return unless behavior == :invoke
       path = File.expand_path(path, destination_root)
       say_status :chmod, relative_to_original_destination_root(path), config.fetch(:verbose, true)
-      FileUtils.chmod_R(mode, path) unless options[:pretend]
+      unless options[:pretend]
+        require "fileutils"
+        FileUtils.chmod_R(mode, path)
+      end
     end
 
     # Prepend text to a file. Since it depends on insert_into_file, it's reversible.
@@ -317,7 +320,10 @@ def remove_file(path, config = {})
       path = File.expand_path(path, destination_root)
 
       say_status :remove, relative_to_original_destination_root(path), config.fetch(:verbose, true)
-      ::FileUtils.rm_rf(path) if !options[:pretend] && File.exist?(path)
+      if !options[:pretend] && File.exist?(path)
+        require "fileutils"
+        ::FileUtils.rm_rf(path)
+      end
     end
     alias_method :remove_dir, :remove_file
 

lib/thor/runner.rb

@@ -2,7 +2,6 @@
 require "thor/group"
 require "thor/core_ext/io_binary_read"
 
-require "fileutils"
 require "yaml"
 require "digest/md5"
 require "pathname"
@@ -103,6 +102,7 @@ def install(name) # rubocop:disable MethodLength
     if package == :file
       File.open(destination, "w") { |f| f.puts contents }
     else
+      require "fileutils"
       FileUtils.cp_r(name, destination)
     end
 
@@ -119,6 +119,7 @@ def version
   def uninstall(name)
     raise Error, "Can't find module '#{name}'" unless thor_yaml[name]
     say "Uninstalling #{name}."
+    require "fileutils"
     FileUtils.rm_rf(File.join(thor_root, (thor_yaml[name][:filename]).to_s))
 
     thor_yaml.delete(name)
@@ -137,6 +138,7 @@ def update(name)
     self.options = options.merge("as" => name)
 
     if File.directory? File.expand_path(name)
+      require "fileutils"
       FileUtils.rm_rf(File.join(thor_root, old_filename))
 
       thor_yaml.delete(old_filename)
@@ -193,6 +195,7 @@ def save_yaml(yaml)
     yaml_file = File.join(thor_root, "thor.yml")
 
     unless File.exist?(yaml_file)
+      require "fileutils"
       FileUtils.mkdir_p(thor_root)
       yaml_file = File.join(thor_root, "thor.yml")
       FileUtils.touch(yaml_file)