Class: CoralBackup::FileSelector

Inherits:
Object
  • Object
show all
Defined in:
lib/coral_backup/file_selector.rb

Instance Attribute Summary collapse

Class Method Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize ⇒ FileSelector

Returns a new instance of FileSelector.



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# File 'lib/coral_backup/file_selector.rb', line 8

def initialize
  @files = []
end

Instance Attribute Details

#files ⇒ Object (readonly)

Returns the value of attribute files.



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# File 'lib/coral_backup/file_selector.rb', line 6

def files
  @files
end

Class Method Details

.select ⇒ Object 



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# File 'lib/coral_backup/file_selector.rb', line 20

def self.select
  file_selector = new
  Readline.completion_proc = Readline::FILENAME_COMPLETION_PROC
  while buf = Readline.readline("> ")
    expanded = Shellwords.split(buf)
    warn "WARNING: #{expanded.length} files are being added:" unless expanded.length == 1

    expanded.each do |ex|
      begin
        file_selector.add_file(ex)
      rescue Errno::ENOENT => e
        warn e
      else
        warn ex
      end
    end
  end

  file_selector.files.uniq
end

.single_select ⇒ Object 



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# File 'lib/coral_backup/file_selector.rb', line 42

def self.single_select
  file_selector = new
  Readline.completion_proc = Readline::FILENAME_COMPLETION_PROC
  file_added = false
  while !file_added && buf = Readline.readline("> ")
    expanded = Shellwords.split(buf)
    warn "WARNING: #{expanded.length} files are being added:" unless expanded.length == 1
    expanded.each do |ex|
      begin
        file_selector.add_file(ex)
      rescue Errno::ENOENT => e
        warn e
      else
        warn ex
        file_added = true
      end
    end
  end

  unless file_selector.files.length == 1
    warn "ERROR: Wrong number of directories (#{file_selector.files.length} for 1):"
    file_selector.files.each do |e|
      warn e
    end
    exit 1
  end
  file_selector.files[0]
end

Instance Method Details

#add_file(filename) ⇒ Object 



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# File 'lib/coral_backup/file_selector.rb', line 12

def add_file(filename)
  if FileTest.exist?(filename)
    @files << filename
  else
    raise Errno::ENOENT, filename
  end
end