Class: GithubSnapBuilder::SnapBuilder

Inherits:
Object
  • Object
show all
Defined in:
lib/github_snap_builder/snap_builder.rb

Class Method Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(logger, base_url, head_url, commit_sha, build_type) ⇒ SnapBuilder 



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# File 'lib/github_snap_builder/snap_builder.rb', line 12

def initialize(logger, base_url, head_url, commit_sha, build_type)
  @logger = logger
  @base_url = base_url
  @head_url = head_url
  @commit_sha = commit_sha
  @build_type = build_type
  @base = 'core16'
end

Class Method Details

.supported_build_types ⇒ Object 



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# File 'lib/github_snap_builder/snap_builder.rb', line 66

def self.supported_build_types
  Dir[File.join(__dir__, 'builder_implementations', '*.rb')].collect do |f|
    File.basename(f, File.extname(f))
  end
end

Instance Method Details

#build ⇒ Object 



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# File 'lib/github_snap_builder/snap_builder.rb', line 21

def build
  Dir.mktmpdir do |tempdir|
    # First of all, clone the repository and get on the proper hash. Make
    # sure to include the base repo so `git describe` has meaning.
    repo = Rugged::Repository.clone_at(@base_url, tempdir)
    remote = repo.remotes.create('fork', @head_url)
    remote.fetch
    repo.checkout(@commit_sha, {strategy: :force})

    # Before we can actually build the snap, we must first determine the
    # base to use. The default is "core".
    snapcraft_yaml = snapcraft_yaml_location(tempdir)
    @base = YAML.safe_load(File.read(snapcraft_yaml)).fetch("base", @base)
    if @base == "core"
      @base = "core16"
    end

    # Factor out any snaps that existed before we build the new one
    snaps_glob = File.join(tempdir, '*.snap')
    existing_snaps = Dir.glob(snaps_glob)

    # Now build the snap
    build_implementation.build(tempdir)

    # Grab the filename of the snap we just built
    new_snaps = Dir.glob(snaps_glob) - existing_snaps
    if new_snaps.empty?
      raise BuildFailedError
    elsif new_snaps.length > 1
      raise TooManySnapsError, new_snaps
    end

    # The directory we're in right now will be removed shortly. Copy the
    # snap somewhere that will live forever, and hand it to the Snap class
    # (which will remove it when it's done with it).
    snap_file = Tempfile.create [@commit_sha, '.snap']
    FileUtils.cp new_snaps[0], snap_file
    snap_file.path
  end
end

#release(snap_path, token, channel) ⇒ Object 



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# File 'lib/github_snap_builder/snap_builder.rb', line 62

def release(snap_path, token, channel)
  build_implementation.release(snap_path, token, channel)
end