feat: add check for newer versions (#1562)

* feat: add check for newer versions

* fix: support JSON logger and rever updates to go.mod

* fix: keep version updated in source code

* fix: lint errors

* fix: revert go.*

2 files changed, 111 insertions, 11 deletions

diff --git a/cmd/notices.go b/cmd/notices.go
new file mode 100644
index 0000000..4ad32d7
--- /dev/null
+++ b/cmd/notices.go
@@ -0,0 +1,90 @@
+package cmd
+
+import (
+	"encoding/json"
+	"fmt"
+	"net/http"
+	"net/url"
+	"os"
+	"runtime"
+	"time"
+
+	log "github.com/sirupsen/logrus"
+)
+
+type Notice struct {
+	Level   string `json:"level"`
+	Message string `json:"message"`
+}
+
+func displayNotices(input *Input) {
+	select {
+	case notices := <-noticesLoaded:
+		if len(notices) > 0 {
+			noticeLogger := log.New()
+			if input.jsonLogger {
+				noticeLogger.SetFormatter(&log.JSONFormatter{})
+			} else {
+				noticeLogger.SetFormatter(&log.TextFormatter{
+					DisableQuote:     true,
+					DisableTimestamp: true,
+					PadLevelText:     true,
+				})
+			}
+
+			fmt.Printf("\n")
+			for _, notice := range notices {
+				level, err := log.ParseLevel(notice.Level)
+				if err != nil {
+					level = log.InfoLevel
+				}
+				noticeLogger.Log(level, notice.Message)
+			}
+		}
+	case <-time.After(time.Second * 1):
+		log.Debugf("Timeout waiting for notices")
+	}
+}
+
+var noticesLoaded = make(chan []Notice)
+
+func loadVersionNotices(version string) {
+	go func() {
+		noticesLoaded <- getVersionNotices(version)
+	}()
+}
+
+const NoticeURL = "https://api.nektosact.com/notices"
+
+func getVersionNotices(version string) []Notice {
+	if os.Getenv("ACT_DISABLE_VERSION_CHECK") == "1" {
+		return nil
+	}
+
+	noticeURL, err := url.Parse(NoticeURL)
+	if err != nil {
+		log.Error(err)
+		return nil
+	}
+	query := noticeURL.Query()
+	query.Add("os", runtime.GOOS)
+	query.Add("arch", runtime.GOARCH)
+	query.Add("version", version)
+
+	noticeURL.RawQuery = query.Encode()
+
+	resp, err := http.Get(noticeURL.String())
+	if err != nil {
+		log.Debug(err)
+		return nil
+	}
+
+	defer resp.Body.Close()
+	notices := []Notice{}
+	if err := json.NewDecoder(resp.Body).Decode(&notices); err != nil {
+		log.Debug(err)
+		return nil
+	}
+
+	return notices
+}
diff --git a/cmd/root.go b/cmd/root.go
index 0aa56e7..1d153ab 100644
--- a/cmd/root.go
+++ b/cmd/root.go
@@ -30,13 +30,14 @@ import (
 func Execute(ctx context.Context, version string) {
 	input := new(Input)
 	var rootCmd = &cobra.Command{
-		Use:              "act [event name to run] [flags]\n\nIf no event name passed, will default to \"on: push\"\nIf actions handles only one event it will be used as default instead of \"on: push\"",
-		Short:            "Run GitHub actions locally by specifying the event name (e.g. `push`) or an action name directly.",
-		Args:             cobra.MaximumNArgs(1),
-		RunE:             newRunCommand(ctx, input),
-		PersistentPreRun: setupLogging,
-		Version:          version,
-		SilenceUsage:     true,
+		Use:               "act [event name to run] [flags]\n\nIf no event name passed, will default to \"on: push\"\nIf actions handles only one event it will be used as default instead of \"on: push\"",
+		Short:             "Run GitHub actions locally by specifying the event name (e.g. `push`) or an action name directly.",
+		Args:              cobra.MaximumNArgs(1),
+		RunE:              newRunCommand(ctx, input),
+		PersistentPreRun:  setup(input),
+		PersistentPostRun: cleanup(input),
+		Version:           version,
+		SilenceUsage:      true,
 	}
 	rootCmd.Flags().BoolP("watch", "w", false, "watch the contents of the local repo and run when files change")
 	rootCmd.Flags().BoolP("list", "l", false, "list workflows")
@@ -244,10 +245,19 @@ func readArgsFile(file string, split bool) []string {
 	return args
 }
 
-func setupLogging(cmd *cobra.Command, _ []string) {
-	verbose, _ := cmd.Flags().GetBool("verbose")
-	if verbose {
-		log.SetLevel(log.DebugLevel)
+func setup(inputs *Input) func(*cobra.Command, []string) {
+	return func(cmd *cobra.Command, _ []string) {
+		verbose, _ := cmd.Flags().GetBool("verbose")
+		if verbose {
+			log.SetLevel(log.DebugLevel)
+		}
+		loadVersionNotices(cmd.Version)
+	}
+}
+
+func cleanup(inputs *Input) func(*cobra.Command, []string) {
+	return func(cmd *cobra.Command, _ []string) {
+		displayNotices(inputs)
 	}
 }