add timeout flag to wait-api command

cli/wait.go

@@ -1,6 +1,7 @@
 package cli
 
 import (
+	"context"
 	"fmt"
 	"time"
 
@@ -10,8 +11,22 @@ import (
 var WaitApiCmd = &cli.Command{
 	Name:  "wait-api",
 	Usage: "Wait for lotus api to come online",
+	Flags: []cli.Flag{
+		&cli.DurationFlag{
+			Name:  "timeout",
+			Usage: "duration to wait till fail",
+			Value: time.Second * 30,
+		},
+	},
 	Action: func(cctx *cli.Context) error {
-		for i := 0; i < 30; i++ {
+		ctx := ReqContext(cctx)
+		ctx, cancel := context.WithTimeout(ctx, cctx.Duration("timeout"))
+		defer cancel()
+		for {
+			if ctx.Err() != nil {
+				break
+			}
+
 			api, closer, err := GetAPI(cctx)
 			if err != nil {
 				fmt.Printf("Not online yet... (%s)\n", err)
@@ -20,15 +35,18 @@ var WaitApiCmd = &cli.Command{
 			}
 			defer closer()
 
-			ctx := ReqContext(cctx)
-
 			_, err = api.Version(ctx)
 			if err != nil {
 				return err
 			}
 
 			return nil
 		}
-		return fmt.Errorf("timed out waiting for api to come online")
+
+		if ctx.Err() == context.DeadlineExceeded {
+			return fmt.Errorf("timed out waiting for api to come online")
+		}
+
+		return ctx.Err()
 	},
 }

documentation/en/cli-lotus-miner.md

@@ -590,7 +590,8 @@ CATEGORY:
    DEVELOPER
 
 OPTIONS:
-   --help, -h  show help (default: false)
+   --timeout value  duration to wait till fail (default: 30s)
+   --help, -h       show help (default: false)
 
 ```
 

documentation/en/cli-lotus.md

@@ -2450,7 +2450,8 @@ CATEGORY:
    DEVELOPER
 
 OPTIONS:
-   --help, -h  show help (default: false)
+   --timeout value  duration to wait till fail (default: 30s)
+   --help, -h       show help (default: false)
 
 ```