Module: FileModification

Defined in:
lib/file_modification.rb

Overview

file_modification.rb Copyright © Rémi Even 2016

This file is part of Xolti.

Xolti is free software: you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation, either version 3 of the License, or (at your option) any later version.

Xolti is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details.

You should have received a copy of the GNU General Public License along with Xolti. If not, see <www.gnu.org/licenses/>.

Class Method Summary collapse

Class Method Details

.delete_lines(path, start, length) ⇒ Object 



38
39
40
41
42
43
44
45
46
47
48
49
50
 
# File 'lib/file_modification.rb', line 38

def FileModification.delete_lines(path, start, length)
  file = Tempfile.new("xolti")
  begin
    File.open(path, "r").each_with_index do |line, index|
      file.write(line) if index < start || index >= start + length
    end
    file.close()
    FileUtils.cp(file, path)
  ensure
    file.close()
    file.unlink()
  end
end

.insert_lines_with_offset(path, text, offset) ⇒ Object 



19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
 
# File 'lib/file_modification.rb', line 19

def FileModification.insert_lines_with_offset(path, text, offset)
  file = Tempfile.new("xolti")
  begin
    File.open(path, "r") do |source_file|
      i = 0
      source_file.each_line do |line|
        file.write(text) if i == offset
        i += 1
        file.write(line)
      end
    end
    file.close()
    FileUtils.cp(file, path)
  ensure
    file.close()
    file.unlink()
  end
end