class Knj::Cmd_gen

This class holds various methods to generate commands for command-line-purpose.

Public Class Methods

rsync(args) click to toggle source

Generates rsync commands as strings.

Examples

Knj::Cmd_gen.rsync(
  :bin => "/usr/bin/rsync",
  :verbose => 2,
  :ssh => true,
  :port => 10022,
  :delete => true,
  :exclude => "cache",
  :user => "username",
  :host => "mydomain.com",
  :dir_host => "/home/username/sync_path",
  :dir_local => "/home/otheruser/sync_path"
) #=> <String>
# File lib/knj/cmd_gen.rb, line 17
def self.rsync(args)
  cmd = ""
  
  if args[:bin]
    cmd << args[:bin]
  else
    cmd << "rsync"
  end
  
  cmd << " -az"
  
  if args[:verbose]
    1.upto(args[:verbose]) do
      cmd << "v"
    end
  end
  
  if args[:ssh]
    cmd << " -e ssh"
    
    if args[:port]
      cmd << " --rsh='ssh -p #{args[:port]}'"
    end
  end
  
  if args[:delete]
    cmd << " --delete"
  end
  
  if args[:exclude]
    args[:exclude].each do |dir|
      cmd << " --exclude \"#{dir}\""
    end
  end
  
  cmd << " \"#{args[:user]}@#{args[:host]}:#{args[:dir_host]}\" \"#{args[:dir_local]}\""
  
  return cmd
end
tar(args) click to toggle source

Generates tar commands.

Examples

Knj::Cmd_gen.tar(
  :bin => "/usr/bin/tar",
  :gzip => true,
  :extract => false,
  :file => true,
  :create => true,
  :verbose => 1,
  :archive_path => "~/myarchive.tar.gz",
  :paths => ["~/mylib1", "~/mylib2", "~/mylib3"]
) #=> <String>
# File lib/knj/cmd_gen.rb, line 69
def self.tar(args)
  cmd = ""
  
  if args[:bin]
    cmd << args[:bin]
  else
    cmd << "tar"
  end
  
  cmd << " "
  cmd << "z"if args[:gzip]
  cmd << "x" if args[:extract]
  cmd << "f" if args[:file]
  cmd << "c" if args[:create]
  
  if args[:verbose]
    1.upto(args[:verbose]) do
      cmd << "v"
    end
  end
  
  cmd << " \"#{args[:archive_path]}\""
  
  args[:paths].each do |path|
    cmd << " \"#{path}\""
  end
  
  return cmd
end