Class: PDK::Module::Build

Inherits:
Object
  • Object
show all
Defined in:
lib/pdk/module/build.rb

Instance Attribute Summary collapse

Class Method Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(options = {}) ⇒ Build

Returns a new instance of Build.



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# File 'lib/pdk/module/build.rb', line 19

def initialize(options = {})
  @module_dir = File.expand_path(options[:module_dir] || Dir.pwd)
  @target_dir = File.expand_path(options[:'target-dir'] || File.join(module_dir, 'pkg'))
end

Instance Attribute Details

#module_dir ⇒ Object (readonly)

Returns the value of attribute module_dir.



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# File 'lib/pdk/module/build.rb', line 16

def module_dir
  @module_dir
end

#target_dir ⇒ Object (readonly)

Returns the value of attribute target_dir.



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# File 'lib/pdk/module/build.rb', line 17

def target_dir
  @target_dir
end

Class Method Details

.invoke(options = {}) ⇒ Object 



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# File 'lib/pdk/module/build.rb', line 12

def self.invoke(options = {})
  new(options).build
end

Instance Method Details

#build ⇒ String

Build a module package from a module directory.

Returns:

  • (String) —

    The path to the built package file.



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# File 'lib/pdk/module/build.rb', line 40

def build
  create_build_dir

  stage_module_in_build_dir
  build_package

  package_file
ensure
  cleanup_build_dir
end

#build_dir ⇒ Object

Return the path to the temporary build directory, which will be placed inside the target directory and match the release name (see #release_name).



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# File 'lib/pdk/module/build.rb', line 65

def build_dir
  @build_dir ||= File.join(target_dir, release_name)
end

#build_package ⇒ Object

Creates a gzip compressed tarball of the build directory.

If the destination package already exists, it will be removed before creating the new tarball.

Returns:

  • nil.



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# File 'lib/pdk/module/build.rb', line 161

def build_package
  FileUtils.rm_f(package_file)

  Dir.chdir(target_dir) do
    Zlib::GzipWriter.open(package_file) do |package_fd|
      Minitar.pack(release_name, package_fd)
    end
  end
end

#cleanup_build_dir ⇒ Object

Remove the temporary build directory and all its contents from disk.

Returns:

  • nil.



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# File 'lib/pdk/module/build.rb', line 82

def cleanup_build_dir
  FileUtils.rm_rf(build_dir, secure: true)
end

#create_build_dir ⇒ Object

Create a temporary build directory where the files to be included in the package will be staged before building the tarball.

If the directory already exists, remove it first.



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# File 'lib/pdk/module/build.rb', line 73

def create_build_dir
  cleanup_build_dir

  FileUtils.mkdir_p(build_dir)
end

#ignore_file ⇒ String

Select the most appropriate ignore file in the module directory.

In order of preference, we first try ‘.pdkignore`, then `.pmtignore` and finally `.gitignore`.

Returns:

  • (String) —

    The path to the file containing the patterns of file paths to ignore.



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# File 'lib/pdk/module/build.rb', line 178

def ignore_file
  @ignore_file ||= [
    File.join(module_dir, '.pdkignore'),
    File.join(module_dir, '.pmtignore'),
    File.join(module_dir, '.gitignore'),
  ].find { |file| File.file?(file) && File.readable?(file) }
end

#ignored_files ⇒ PathSpec

Instantiate a new PathSpec class and populate it with the pattern(s) of files to be ignored.

Returns:

  • (PathSpec) —

    The populated ignore path matcher.



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# File 'lib/pdk/module/build.rb', line 190

def ignored_files
  @ignored_files ||=
    begin
      ignored = if ignore_file.nil?
                  PathSpec.new
                else
                  fd = File.open(ignore_file, 'rb:UTF-8')
                  data = fd.read
                  fd.close

                  PathSpec.new(data)
                end

      if File.realdirpath(target_dir).start_with?(File.realdirpath(module_dir))
        ignored = ignored.add("\/#{File.basename(target_dir)}\/")
      end

      PDK::Module::DEFAULT_IGNORED.each { |r| ignored.add(r) }

      ignored
    end
end

#ignored_path?(path) ⇒ Boolean

Check if the given path matches one of the patterns listed in the ignore file.

Parameters:

  • path (String) —

    The path to be checked.

Returns:

  • (Boolean) —

    true if the path matches and should be ignored.



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# File 'lib/pdk/module/build.rb', line 133

def ignored_path?(path)
  path = path.to_s + '/' if File.directory?(path)

  !ignored_files.match_paths([path], module_dir).empty?
end

#metadata ⇒ Hash{String => Object}

Read and parse the values from metadata.json for the module that is being built.

Returns:

  • (Hash{String => Object}) —

    The hash of metadata values.



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# File 'lib/pdk/module/build.rb', line 28

def metadata
  @metadata ||= PDK::Module::Metadata.from_file(File.join(module_dir, 'metadata.json')).data
end

#module_pdk_compatible? ⇒ Boolean

Check if the module is PDK Compatible. If not, then prompt the user if they want to run PDK Convert.

Returns:

  • (Boolean) 


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# File 'lib/pdk/module/build.rb', line 59

def module_pdk_compatible?
  ['pdk-version', 'template-url'].any? { |key| metadata.key?(key) }
end

#package_already_exists? ⇒ Boolean

Verify if there is an existing package in the target directory and prompts the user if they want to overwrite it.

Returns:

  • (Boolean) 


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# File 'lib/pdk/module/build.rb', line 53

def package_already_exists?
  File.exist? package_file
end

#package_file ⇒ Object

Return the path where the built package file will be written to.



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# File 'lib/pdk/module/build.rb', line 33

def package_file
  @package_file ||= File.join(target_dir, "#{release_name}.tar.gz")
end

#release_name ⇒ String

Combine the module name and version into a Forge-compatible dash separated string.

Returns:

  • (String) —

    The module name and version, joined by a dash.



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# File 'lib/pdk/module/build.rb', line 90

def release_name
  @release_name ||= [
    metadata['name'],
    metadata['version'],
  ].join('-')
end

#stage_module_in_build_dir ⇒ Object

Iterate through all the files and directories in the module and stage them into the temporary build directory (unless ignored).

Returns:

  • nil



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# File 'lib/pdk/module/build.rb', line 101

def stage_module_in_build_dir
  Find.find(module_dir) do |path|
    next if path == module_dir

    ignored_path?(path) ? Find.prune : stage_path(path)
  end
end

#stage_path(path) ⇒ Object

Stage a file or directory from the module into the build directory.

Parameters:

  • path (String) —

    The path to the file or directory.

Returns:

  • nil.



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# File 'lib/pdk/module/build.rb', line 114

def stage_path(path)
  relative_path = Pathname.new(path).relative_path_from(Pathname.new(module_dir))
  dest_path = File.join(build_dir, relative_path)

  if File.directory?(path)
    FileUtils.mkdir_p(dest_path, mode: File.stat(path).mode)
  elsif File.symlink?(path)
    warn_symlink(path)
  else
    FileUtils.cp(path, dest_path, preserve: true)
  end
end

#warn_symlink(path) ⇒ Object

Warn the user about a symlink that would have been included in the built package.

Parameters:

  • path (String) —

    The relative or absolute path to the symlink.

Returns:

  • nil.



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# File 'lib/pdk/module/build.rb', line 145

def warn_symlink(path)
  symlink_path = Pathname.new(path)
  module_path = Pathname.new(module_dir)

  PDK.logger.warn _('Symlinks in modules are not supported and will not be included in the package. Please investigate symlink %{from} -> %{to}.') % {
    from: symlink_path.relative_path_from(module_path),
    to:   symlink_path.realpath.relative_path_from(module_path),
  }
end