events listeners refactor, CLI initial commit

1 files changed, 97 insertions, 0 deletions

diff --git a/cmd/cli/reset.go b/cmd/cli/reset.go
new file mode 100644
index 00000000..82cf8590
--- /dev/null
+++ b/cmd/cli/reset.go
@@ -0,0 +1,97 @@
+package cli
+
+import (
+	"fmt"
+	"sync"
+
+	"github.com/fatih/color"
+	"github.com/mattn/go-runewidth"
+	"github.com/spf13/cobra"
+	"github.com/vbauerster/mpb/v5"
+	"github.com/vbauerster/mpb/v5/decor"
+)
+
+func init() {
+	root.AddCommand(&cobra.Command{
+		Use:   "reset",
+		Short: "Reset workers of all or specific RoadRunner service",
+		RunE:  resetHandler,
+	})
+}
+
+func resetHandler(cmd *cobra.Command, args []string) error {
+	client, err := RPCClient()
+	if err != nil {
+		return err
+	}
+	defer client.Close()
+
+	var services []string
+	if len(args) != 0 {
+		services = args
+	} else {
+		err = client.Call("resetter.List", true, &services)
+		if err != nil {
+			return err
+		}
+	}
+
+	var wg sync.WaitGroup
+	pr := mpb.New(mpb.WithWaitGroup(&wg), mpb.WithWidth(6))
+	wg.Add(len(services))
+
+	for _, service := range services {
+		var (
+			bar    *mpb.Bar
+			name   = runewidth.FillRight(fmt.Sprintf("Reset [%s]", color.HiYellowString(service)), 27)
+			result = make(chan interface{})
+		)
+
+		bar = pr.AddSpinner(
+			1,
+			mpb.SpinnerOnMiddle,
+			mpb.SpinnerStyle([]string{"∙∙∙", "●∙∙", "∙●∙", "∙∙●", "∙∙∙"}),
+			mpb.PrependDecorators(decor.Name(name)),
+			mpb.AppendDecorators(onComplete(result)),
+		)
+
+		// simulating some work
+		go func(service string, result chan interface{}) {
+			defer wg.Done()
+			defer bar.Increment()
+
+			var done bool
+			err = client.Call("resetter.Reset", service, &done)
+			if err != nil {
+				result <- err
+				return
+			}
+			result <- nil
+		}(service, result)
+	}
+
+	pr.Wait()
+	return nil
+}
+
+func onComplete(result chan interface{}) decor.Decorator {
+	var (
+		msg = ""
+		fn  = func(s decor.Statistics) string {
+			select {
+			case r := <-result:
+				if err, ok := r.(error); ok {
+					msg = color.HiRedString(err.Error())
+					return msg
+				}
+
+				msg = color.HiGreenString("done")
+				return msg
+			default:
+				return msg
+			}
+		}
+	)
+
+	return decor.Any(fn)
+}