Module: Teleport::Mirror

Includes:
Constants
Included in:
Install
Defined in:
lib/teleport/mirror.rb

Overview

Helper module for recursively mirroring files from a src to a dst.

Constant Summary collapse

IGNORE =

Don’t install these files.

[
 ".",
 "..",
 "Gemfile",
 "Gemfile.lock",              
 /^.#/,
]

Constants included from Constants

Constants::DATA, Constants::DIR, Constants::FILES, Constants::GEM, Constants::PUBKEY, Constants::RUBYGEMS

Instance Method Summary collapse

Instance Method Details

#install_dir(path) ⇒ Object

Install directory from the teleport data directory into the normal filesystem. Path can use a few different formats:

Returns true if the dir was installed, false if the dir had previously been installed and no change was required.



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# File 'lib/teleport/mirror.rb', line 61

def install_dir(path)
  dirty = false

  path, dst = path_to_src(path), path_to_dst(path)
  mkdir_if_necessary(dst, user_for_file(dst)) if !dst.empty?      
  
  files = Dir.new(path).to_a.sort
  files.delete_if { |file| IGNORE.any? { |i| i === file } }
  files.each do |i|
    i = "#{path}/#{i}"
    if File.directory?(i)
      dirty = install_dir(i) || dirty
    else
      dirty = install_file(i) || dirty
    end
  end
  
  dirty
end

#install_file(path) ⇒ Object

Install file from the teleport data directory into the normal filesystem. Path can use a few different formats:

Note that the path can be an erb file. For example, “etc/hosts.erb” will be installed as “etc/hosts”.

Returns true if the file was installed, false if the file had previously been installed and no change was required.



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# File 'lib/teleport/mirror.rb', line 30

def install_file(path)
  path, dst = path_to_src(path), path_to_dst(path)

  # run erb if necessary
  if path =~ /#{DATA}\/(.*)\.erb$/
    tmp = "#{DATA}/#{$1.gsub('/', '_')}"
    dst = dst.gsub(/\.erb$/, "")
    File.open(tmp, "w") do |f|
      f.write ERB.new(File.read(path)).result(binding)
    end
    copy_metadata(path, tmp)
    path = tmp
  end

  if !File.symlink?(path)
    cp_if_necessary(path, dst, user_for_file(dst), mode_for_file(dst))
  else
    ln_if_necessary(File.readlink(path), dst)
  end
end