Class: Remote

Inherits:
Object show all
Defined in:
lib/xiki/remote.rb

Constant Summary collapse

@@temp_dir = 
"/tmp/remote_rb"
@@connections = 
{}

Class Method Summary collapse

Class Method Details

.calculate_local_path(path, server) ⇒ Object 



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# File 'lib/xiki/remote.rb', line 187

def self.calculate_local_path path, server
  "#{@@temp_dir}/#{server},#{path.gsub('/', ',')[1..-1]}"
end

.calculate_remote_path(path) ⇒ Object 



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# File 'lib/xiki/remote.rb', line 191

def self.calculate_remote_path path
  path.gsub(/^#{@@temp_dir}\/.+?,/, '/').gsub(',', '/')
end

.command(root) ⇒ Object

, *path_append



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# File 'lib/xiki/remote.rb', line 88

def self.command root #, *path_append

  the_command = root[-1][/\$ ?(.+)/, 1]

  # Pull off command
  while(root.last =~ /^\$/) do   # Remove all !foo lines from root
    root.pop
  end
  root = root.join('')

  connection = self.connection root

  user, server, port, path = self.split_root(root)

  path << "/" unless path =~ /\/$/   # Add slash to path if none there

  timeout(6) do
    out = connection.exec!("cd \"#{path}\" && #{the_command}")
    #       out = connection.exec!("cd \"#{path}\"; #{the_command}")
    out ||= ""

    Tree.under out, :escape=>'| ', :no_slash=>1
  end
end

.connection(root) ⇒ Object 



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# File 'lib/xiki/remote.rb', line 117

def self.connection root
  user, server, port, path = self.split_root root
  address = "#{user}@#{server}:#{port}"
  @@connections[address] ||= self.new_connection user, server, port.to_i
  @@connections[address]
end

.connections ⇒ Object 



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# File 'lib/xiki/remote.rb', line 113

def self.connections
  @@connections
end

.dir(root, *path_append) ⇒ Object 



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# File 'lib/xiki/remote.rb', line 30

def self.dir root, *path_append

  connection = self.connection root

  user, server, port, path = self.split_root(root)

  # Add slash to path if none there
  path << "/" unless path =~ /\/$/

  path_passed = path_append.size > 0

  if path_passed  # If anything in array
    path << "#{path_append.join('')}"  # append to path
    path.sub! /^\/\//, '/'
  end

  timeout(15) do
    if path =~ /\/$/   # If a dir
      out = connection.exec!("ls -pa #{path}")
      out ||= ""
      out = out.split("\n").grep(/^[^#]+$/).join("\n")   # Weed out #...#
      out.gsub!(/@/, '/')   # Change @ to /

      # Get rid of . and ..
      out = out.split("\n").select{|o| o !~ /^\.+\/$/}.join("\n")+"\n"
      self.sort(out)

    else   # If a file

      Dir.mkdir @@temp_dir unless File.exists? @@temp_dir
      local_path = self.calculate_local_path path, server

      was_open = Files.open? local_path

      # Download if not open already
      unless was_open
        begin
          connection.sftp.download!(path, local_path)
        rescue Exception=>e
          # If doesn't exist, we'll just create
        end
      end

      View.to_after_bar
      View.open local_path

      # TODO: save root path as var in buffer
      $el.make_local_variable :remote_rb_server_root
      server_root = "/#{user}@#{server}#{port ? ":#{port}" : ""}/"
      $el.elvar.remote_rb_server_root = server_root

      # TODO save timestamp in buffer var
      # - Use it to determine whether file changed when saving

    end
  end
end

.file_contents(whole_path) ⇒ Object

Called when dir or file is launched



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# File 'lib/xiki/remote.rb', line 24

def self.file_contents whole_path
  user, server, port, path = self.split_root(whole_path)
  connection = self.connection whole_path
  connection.sftp.download!(path)
end

.init ⇒ Object 



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# File 'lib/xiki/remote.rb', line 195

def self.init
  # TODO remove this
end

.menu ⇒ Object 



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# File 'lib/xiki/remote.rb', line 13

def self.menu
  "
  - docs/
    > Summary
    | You can browse files and run commands on remote servers.
    @ /[email protected]/tmp/
  << see) @servers/
  "
end

.new_connection(user, server, port) ⇒ Object 



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# File 'lib/xiki/remote.rb', line 124

def self.new_connection user, server, port
  begin
    timeout(6) do
      Net::SSH.start(server, user, :port => port.to_i, :paranoid => false)
    end
  rescue Exception => e
    raise "Timed out: #{e.message}"
  end
end

.remote_buffer_name(server, path) ⇒ Object 



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# File 'lib/xiki/remote.rb', line 156

def self.remote_buffer_name(server, path)
  dir, file = path.match(/(.+\/)(.+)/)[1..2]
  "*remote #{file} (#{server}:#{dir})"
end

.save_file ⇒ Object 



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# File 'lib/xiki/remote.rb', line 161

def self.save_file
  local_path = View.file
  # Error out if not in right place
  if local_path !~ /^#{@@temp_dir}/
    View.beep
    return View.message("This isn't a file the Remote code_tree retrieved")
  end

  # Save if modified
  $el.save_buffer if $el.buffer_modified_p

  remote_path = $el.elvar.remote_rb_server_root


  # Convert to path
  remote_path = self.calculate_remote_path local_path
  begin   # Do save
    connection = self.connection $el.elvar.remote_rb_server_root
    connection.sftp.upload!(local_path, remote_path)
    View.message "successfully saved remotely!"
  rescue Exception => e
    View.message "- error: #{e.message}"
  end

end

.sort(lines) ⇒ Object 



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# File 'lib/xiki/remote.rb', line 151

def self.sort lines
  l = lines.split("\n")
  l.sort!{|a,b| a.sub(/(.+)\//, "\\1") <=> b.sub(/(.+)\//, "\\1")}
end

.split_root(root) ⇒ Object

Splits name@server:port/path



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# File 'lib/xiki/remote.rb', line 135

def self.split_root root   # Splits name@server:port/path
  root = root.dup   # Append / at end if no / exists
  root << "/" unless root =~ /\/$/

  user, server_port, path = root.match(/^(.+?)@(.+?)(\/.*?)\/?$/)[1..3]

  if(server_port =~ /(.+?):(.+)/)
    server, port = $1, $2
  else
    server, port = server_port, "22"
  end

  user.sub! /^\//, ''
  [user, server, port, path]
end