package null import ( "log" "github.com/hashicorp/packer/common" "github.com/hashicorp/packer/helper/communicator" "github.com/hashicorp/packer/helper/multistep" "github.com/hashicorp/packer/packer" ) const BuilderId = "fnoeding.null" type Builder struct { config *Config runner multistep.Runner } func (b *Builder) Prepare(raws ...interface{}) ([]string, error) { c, warnings, errs := NewConfig(raws...) if errs != nil { return warnings, errs } b.config = c return warnings, nil } func (b *Builder) Run(ui packer.Ui, hook packer.Hook, cache packer.Cache) (packer.Artifact, error) { steps := []multistep.Step{} if b.config.CommConfig.Type != "none" { steps = append(steps, &communicator.StepConnect{ Config: &b.config.CommConfig, Host: CommHost(b.config.CommConfig.Host()), SSHConfig: b.config.CommConfig.SSHConfigFunc(), }, ) } steps = append(steps, new(common.StepProvision), ) // Setup the state bag and initial state for the steps state := new(multistep.BasicStateBag) state.Put("config", b.config) state.Put("hook", hook) state.Put("ui", ui) // Run! b.runner = common.NewRunner(steps, b.config.PackerConfig, ui) b.runner.Run(state) // If there was an error, return that if rawErr, ok := state.GetOk("error"); ok { return nil, rawErr.(error) } // No errors, must've worked artifact := &NullArtifact{} return artifact, nil } func (b *Builder) Cancel() { if b.runner != nil { log.Println("Cancelling the step runner...") b.runner.Cancel() } }