fix rubocop Style/GuardClause cop

.rubocop_rubyzip.yml

@@ -139,11 +139,6 @@ Style/FileName:
 Style/FormatString:
   Enabled: false
 
-# Offense count: 10
-# Configuration parameters: MinBodyLength.
-Style/GuardClause:
-  Enabled: false
-
 # Offense count: 1
 # Cop supports --auto-correct.
 Style/InfiniteLoop:

lib/zip/entry.rb

@@ -45,10 +45,9 @@ module Zip
     end
 
     def check_name(name)
-      if name.start_with?('/')
+      return unless name.start_with?('/')
       raise ::Zip::EntryNameError, "Illegal ZipEntry name '#{name}', name must not start with /"
     end
-    end
 
     def initialize(*args)
       name = args[1] || ''
@@ -332,22 +331,19 @@ module Zip
     end
 
     def check_c_dir_entry_static_header_length(buf)
-      unless buf.bytesize == ::Zip::CDIR_ENTRY_STATIC_HEADER_LENGTH
+      return if buf.bytesize == ::Zip::CDIR_ENTRY_STATIC_HEADER_LENGTH
       raise Error, 'Premature end of file. Not enough data for zip cdir entry header'
     end
-    end
 
     def check_c_dir_entry_signature
-      unless header_signature == ::Zip::CENTRAL_DIRECTORY_ENTRY_SIGNATURE
+      return if header_signature == ::Zip::CENTRAL_DIRECTORY_ENTRY_SIGNATURE
       raise Error, "Zip local header magic not found at location '#{local_header_offset}'"
     end
-    end
 
     def check_c_dir_entry_comment_size
-      unless @comment && @comment.bytesize == @comment_length
+      return if @comment && @comment.bytesize == @comment_length
       raise ::Zip::Error, 'Truncated cdir zip entry header'
     end
-    end
 
     def read_c_dir_extra_field(io)
       if @extra.is_a?(::Zip::ExtraField)
@@ -380,13 +376,12 @@ module Zip
     end
 
     def get_extra_attributes_from_path(path) # :nodoc:
-      unless Zip::RUNNING_ON_WINDOWS
+      return if Zip::RUNNING_ON_WINDOWS
       stat        = file_stat(path)
       @unix_uid   = stat.uid
       @unix_gid   = stat.gid
       @unix_perms = stat.mode & 07777
     end
-    end
 
     def set_unix_permissions_on_path(dest_path)
       # BUG: does not update timestamps into account

lib/zip/extra_field/ntfs.rb

@@ -26,13 +26,12 @@ module Zip
       tags = parse_tags(content)
 
       tag1 = tags[1]
-      if tag1
+      return unless tag1
       ntfs_mtime, ntfs_atime, ntfs_ctime = tag1.unpack('Q<Q<Q<')
       ntfs_mtime && @mtime ||= from_ntfs_time(ntfs_mtime)
       ntfs_atime && @atime ||= from_ntfs_time(ntfs_atime)
       ntfs_ctime && @ctime ||= from_ntfs_time(ntfs_ctime)
     end
-    end
 
     def ==(other)
       @mtime == other.mtime &&

lib/zip/file.rb

@@ -385,7 +385,7 @@ module Zip
 
     def check_entry_exists(entryName, continue_on_exists_proc, procedureName)
       continue_on_exists_proc ||= proc { Zip.continue_on_exists_proc }
-      if @entry_set.include?(entryName)
+      return unless @entry_set.include?(entryName)
       if continue_on_exists_proc.call
         remove get_entry(entryName)
       else
@@ -393,7 +393,6 @@ module Zip
               procedureName + " failed. Entry #{entryName} already exists"
       end
     end
-    end
 
     def check_file(path)
       raise Errno::ENOENT, path unless ::File.readable?(path)

test/file_split_test.rb

@@ -27,7 +27,7 @@ class ZipFileSplitTest < MiniTest::Test
   def test_split
     result = ::Zip::File.split(TEST_ZIP.zip_name, 65_536, false)
 
-    unless result.nil?
+    return if result.nil?
     Dir["#{TEST_ZIP.zip_name}.*"].sort.each_with_index do |zip_file_name, index|
       File.open(zip_file_name, 'rb') do |zip_file|
         zip_file.read([::Zip::File::SPLIT_SIGNATURE].pack('V').size) if index == 0
@@ -55,4 +55,3 @@ class ZipFileSplitTest < MiniTest::Test
     end
   end
 end
-end