Class: RailsEmbedEditor::FileManager

Inherits:
Object
  • Object
show all
Defined in:
lib/rails_embed_editor/file_manager.rb

Instance Attribute Summary collapse

Class Method Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(filename, first_line = nil, last_line = nil) ⇒ FileManager

Returns a new instance of FileManager.



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# File 'lib/rails_embed_editor/file_manager.rb', line 5

def initialize(filename, first_line = nil, last_line=nil)
  @filename = filename
  @first_line = first_line
  @last_line = last_line
end

Instance Attribute Details

#first_line ⇒ Object

Returns the value of attribute first_line.



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# File 'lib/rails_embed_editor/file_manager.rb', line 3

def first_line
  @first_line
end

#last_line ⇒ Object

Returns the value of attribute last_line.



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# File 'lib/rails_embed_editor/file_manager.rb', line 3

def last_line
  @last_line
end

Class Method Details

.from_around(filename, line, radius = 2) ⇒ Object 



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# File 'lib/rails_embed_editor/file_manager.rb', line 19

def self.from_around(filename, line, radius=2)
  first_line = line - radius
  last_line = line + radius
  RailsEmbedEditor::FileManager.new(filename, first_line, last_line)
end

.from_options(filename, options) ⇒ Object 



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# File 'lib/rails_embed_editor/file_manager.rb', line 11

def self.from_options(filename, options)
  if options[:first_line].nil?
    from_around(filename, options[:line].to_i, options[:radius].to_i)
  else
    RailsEmbedEditor::FileManager.new(filename, options[:first_line].to_i, options[:last_line].to_i)
  end
end

Instance Method Details

#read_lines ⇒ Object 



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# File 'lib/rails_embed_editor/file_manager.rb', line 25

def read_lines
  lines = []
  File.open(@filename, 'r') do |f|
    all_lines  = f.readlines
    @first_line = 1 if @first_line <= 0
    @last_line = all_lines.size if @first_line > all_lines.size
    lines = all_lines[@first_line-1...@last_line]
  end
  lines
end

#read_text ⇒ Object 



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# File 'lib/rails_embed_editor/file_manager.rb', line 36

def read_text
  read_lines.join()
end

#save_lines(lines) ⇒ Object 



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# File 'lib/rails_embed_editor/file_manager.rb', line 44

def save_lines(lines)
  all_lines = []
  File.open(@filename, 'r') do |f|
    all_lines = f.readlines
  end
  @first_line = 1 if @first_line <= 0
  @last_line = all_lines.size if @first_line > all_lines.size
  all_lines = all_lines[0...@first_line-1] + lines + all_lines[@last_line..-1]
  File.open(@filename, 'w') do |f|
    all_lines.each do |line|
      f.write(line)
    end
  end
end

#save_text(text) ⇒ Object 



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# File 'lib/rails_embed_editor/file_manager.rb', line 40

def save_text(text)
  save_lines(text.lines.map{|x| "#{x.chomp}\n"})
end