Ensure to use file_encoding for arguments

Fixes athityakumar#377

lib/colorls/core.rb

@@ -12,7 +12,7 @@ class Core
     def initialize(input, all: false, report: false, sort: false, show: false,
       mode: nil, git_status: false, almost_all: false, colors: [], group: nil,
       reverse: false, hyperlink: false, tree_depth: nil)
-      @input        = File.absolute_path(input)
+      @input        = (+input).force_encoding(ColorLS.file_encoding)
       @count        = {folders: 0, recognized_files: 0, unrecognized_files: 0}
       @all          = all
       @almost_all   = almost_all
@@ -33,7 +33,7 @@ def initialize(input, all: false, report: false, sort: false, show: false,
 
       init_colors colors
 
-      @contents   = init_contents(input)
+      @contents   = init_contents(@input)
       init_icons
     end
 
@@ -371,7 +371,7 @@ def tree_branch_preprint(prespace, indent, prespace_icon)
     end
 
     def make_link(path, name)
-      href = "file://#{path}/#{name}"
+      href = "file://#{File.absolute_path(path)}/#{name}"
       "\033]8;;#{href}\007#{name}\033]8;;\007"
     end
   end

spec/color_ls/core_spec.rb

@@ -0,0 +1,68 @@
+# coding: utf-8
+require 'spec_helper'
+
+RSpec.describe ColorLS::Core do
+  subject { described_class.new(*args) }
+
+  context 'initialize' do
+    let(:args) { 'Imágenes' }
+
+    it 'works with Unicode characters' do
+      camera = 'Cámara'.force_encoding(ColorLS::file_encoding)
+      imagenes = 'Imágenes'.force_encoding(ColorLS::file_encoding)
+
+      dirInfo = instance_double(
+        'FileInfo',
+        :group => "sys",
+        :mtime => Time.now,
+        :directory? => true,
+        :owner => "user",
+        :name => imagenes,
+        :show => imagenes,
+        :nlink => 1,
+        :size => 128,
+        :blockdev? => false,
+        :chardev? => false,
+        :socket? => false,
+        :symlink? => false,
+        :stats => OpenStruct.new(
+          mode: 0o444, # read for user, owner, other
+          setuid?: false,
+          setgid?: false,
+          sticky?: false
+        ),
+        :executable? => true
+      )
+
+      fileInfo = instance_double(
+        'FileInfo',
+        :group => "sys",
+        :mtime => Time.now,
+        :directory? => false,
+        :owner => "user",
+        :name => camera,
+        :show => camera,
+        :nlink => 1,
+        :size => 128,
+        :blockdev? => false,
+        :chardev? => false,
+        :socket? => false,
+        :symlink? => false,
+        :stats => OpenStruct.new(
+          mode: 0o444, # read for user, owner, other
+          setuid?: false,
+          setgid?: false,
+          sticky?: false
+        ),
+        :executable? => false
+      )
+
+      expect(::Dir).to receive(:entries).and_return([camera])
+
+      allow(ColorLS::FileInfo).to receive(:new).and_return(dirInfo)
+      allow(ColorLS::FileInfo).to receive(:new).with(File.join(imagenes, camera), link_info: false) { fileInfo }
+
+      expect { subject }.not_to raise_error
+    end
+  end
+end