Class: BulldozeRenamer::FileContentSubstitutor

Inherits:
Object
  • Object
show all
Defined in:
lib/bulldoze_renamer/file_content_substitutor.rb

Instance Method Summary collapse

Constructor Details

#initialize(dir) ⇒ FileContentSubstitutor

Returns a new instance of FileContentSubstitutor.



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# File 'lib/bulldoze_renamer/file_content_substitutor.rb', line 6

def initialize(dir)
  @dir = dir
end

Instance Method Details

#full_path(path) ⇒ Object 



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# File 'lib/bulldoze_renamer/file_content_substitutor.rb', line 10

def full_path(path)
  File.join(@dir, path)
end

#move_directory(original_path, new_path) ⇒ Object 



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# File 'lib/bulldoze_renamer/file_content_substitutor.rb', line 28

def move_directory(original_path, new_path)
  FileUtils.mv(full_path(original_path), full_path(new_path))
end

#substitute_in(original_path, new_path, mappings) ⇒ Object 



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# File 'lib/bulldoze_renamer/file_content_substitutor.rb', line 32

def substitute_in(original_path, new_path, mappings)
  content = File.read(full_path(original_path))
  mappings.each do |m|
    content.gsub!(m[0], m[1])
  end

  with_content_written_to_temporary_file(original_path, content) do |f|
    FileUtils.cp_r(f, full_path(new_path), preserve: true)
    if new_path != original_path
      FileUtils.rm(full_path(original_path))
    end
  end
end

#with_content_written_to_temporary_file(original_path, content) ⇒ Object 



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# File 'lib/bulldoze_renamer/file_content_substitutor.rb', line 14

def with_content_written_to_temporary_file(original_path, content)
  Dir.mktmpdir do |dir|
    filename = File.join(dir, 'replaced_content')

    # First copy original file to preserve permissions, even though we will overwrite
    FileUtils.cp_r(File.join(@dir, original_path), filename, preserve: true)

    File.open(filename, 'w') do |f|
      f.print content
    end
    yield(filename)
  end
end