package main import ( "fmt" "log" "path/filepath" "github.com/hashicorp/go-checkpoint" "github.com/mitchellh/packer/command" "github.com/mitchellh/packer/packer" packerVersion "github.com/mitchellh/packer/version" ) func init() { checkpointResult = make(chan *checkpoint.CheckResponse, 1) } var checkpointResult chan *checkpoint.CheckResponse // runCheckpoint runs a HashiCorp Checkpoint request. You can read about // Checkpoint here: https://github.com/hashicorp/go-checkpoint. func runCheckpoint(c *config) { // If the user doesn't want checkpoint at all, then return. if c.DisableCheckpoint { log.Printf("[INFO] Checkpoint disabled. Not running.") checkpointResult <- nil return } configDir, err := packer.ConfigDir() if err != nil { log.Printf("[ERR] Checkpoint setup error: %s", err) checkpointResult <- nil return } version := packerVersion.Version if packerVersion.VersionPrerelease != "" { version += fmt.Sprintf("-%s", packerVersion.VersionPrerelease) } signaturePath := filepath.Join(configDir, "checkpoint_signature") if c.DisableCheckpointSignature { log.Printf("[INFO] Checkpoint signature disabled") signaturePath = "" } resp, err := checkpoint.Check(&checkpoint.CheckParams{ Product: "packer", Version: version, SignatureFile: signaturePath, CacheFile: filepath.Join(configDir, "checkpoint_cache"), }) if err != nil { log.Printf("[ERR] Checkpoint error: %s", err) resp = nil } checkpointResult <- resp } // commandVersionCheck implements command.VersionCheckFunc and is used // as the version checker. func commandVersionCheck() (command.VersionCheckInfo, error) { // Wait for the result to come through info := <-checkpointResult if info == nil { var zero command.VersionCheckInfo return zero, nil } // Build the alerts that we may have received about our version alerts := make([]string, len(info.Alerts)) for i, a := range info.Alerts { alerts[i] = a.Message } return command.VersionCheckInfo{ Outdated: info.Outdated, Latest: info.CurrentVersion, Alerts: alerts, }, nil }