encoding error when calling FileUtils.copy_entry in Ruby - ruby

Question

I'm writing code for copy and paste recursively.
But I got an encoding error when calling FileUtils.copy_entry
Error Messages :
C:/Ruby200/lib/ruby/2.0.0/fileutils.rb:1535:in `join': incompatible character encodings: CP949 and UTF-8 (Encoding::CompatibilityError)
from C:/Ruby200/lib/ruby/2.0.0/fileutils.rb:1535:in `join'
from C:/Ruby200/lib/ruby/2.0.0/fileutils.rb:1218:in `path'
from C:/Ruby200/lib/ruby/2.0.0/fileutils.rb:463:in `block in copy_entry'
from C:/Ruby200/lib/ruby/2.0.0/fileutils.rb:1485:in `call'
from C:/Ruby200/lib/ruby/2.0.0/fileutils.rb:1485:in `wrap_traverse'
from C:/Ruby200/lib/ruby/2.0.0/fileutils.rb:1488:in `block in wrap_traverse'
from C:/Ruby200/lib/ruby/2.0.0/fileutils.rb:1487:in `each'
from C:/Ruby200/lib/ruby/2.0.0/fileutils.rb:1487:in `wrap_traverse'
from C:/Ruby200/lib/ruby/2.0.0/fileutils.rb:1488:in `block in wrap_traverse'
from C:/Ruby200/lib/ruby/2.0.0/fileutils.rb:1487:in `each'
from C:/Ruby200/lib/ruby/2.0.0/fileutils.rb:1487:in `wrap_traverse'
from C:/Ruby200/lib/ruby/2.0.0/fileutils.rb:460:in `copy_entry'
from C:/Ruby200/lib/ruby/2.0.0/fileutils.rb:435:in `block in cp_r'
from C:/Ruby200/lib/ruby/2.0.0/fileutils.rb:1558:in `block in fu_each_src_dest'
from C:/Ruby200/lib/ruby/2.0.0/fileutils.rb:1574:in `fu_each_src_dest0'
from C:/Ruby200/lib/ruby/2.0.0/fileutils.rb:1556:in `fu_each_src_dest'
from C:/Ruby200/lib/ruby/2.0.0/fileutils.rb:434:in `cp_r'
from copy_test.rb:11:in `copy_files'
from copy_test.rb:81:in `block in <main>'
from copy_test.rb:76:in `each'
from copy_test.rb:76:in `<main>'
I'm calling copy_entry like this.
def copy_files(src, dst)
FileUtils.mkdir_p(File.dirname(dst))
FileUtils.copy_entry(src, dst)
end
There are some sub-folders and files named with my local language in src.
So I think (Encoding::CompatibilityError) occurs because of these sub-folders and files with local language (not English).
When I tested with only Enlgish folders and files, It worked.
But, I need non-English folders and files too.
How can I solve this problem?
Should I define a new method replacing copy_entry?
My Codes ADDED:
# -*- encoding: cp949 -*-
require 'fileutils'
LIST_FILE = "backup_target_list.txt"
DEST_FILE = "backup_dest.txt"
def copy_files(src, dst)
FileUtils.mkdir_p(File.dirname(dst))
FileUtils.copy_entry(src, dst)
end
def get_dst_base_name()
cur_date = Time.now.to_s[0..9]
return "backup_#{cur_date}"
end
def get_backup_list(list_file)
if !File.exist?(list_file) then
return nil
end
path_arr = []
File.open(list_file, "r") do |f|
f.each_line { |line|
path_arr.push(make_path(line.gsub("\n", "")))
}
end
return path_arr
end
def get_dest(dest_file)
if !File.exist?(dest_file) then
return nil
end
return File.open(dest_file, "r").readline
end
def make_path(*str)
path_new = nil
str.each do |item|
if item.class == Array then
path_new = (path_new == nil ? File.join(item) : File.join(path_new, item))
else
if item.include?(File::ALT_SEPARATOR) then
path_new = (path_new == nil ? File.join(item.split(File::ALT_SEPARATOR)) : File.join(path_new, item.split(File::ALT_SEPARATOR)))
else
path_new = (path_new == nil ? File.join(item) : File.join(path_new, item))
end
end
end
return path_new
end
get_backup_list(LIST_FILE).each do |path|
src = path
tmp = src.split(File::SEPARATOR)
dst = make_path(get_dest(DEST_FILE), get_dst_base_name, tmp[1..tmp.length])
print "src: #{src}\n=> dst: #{dst}\n"
copy_files(src, dst)
end

Answer 1

I saw you are using cp949 encoding, and the raised error tells CP949 and UTF-8 are incompatible, so why you just using UTF-8 encoding? So replace the shebang with
# coding: UTF-8
And to ensure all the characters read from LIST_FILE are utf-8 encoded, add the following:
line.force_encoding('utf-8')