feat: add logo printing functionality and update logger usage

- Introduced a new utility function to print a logo and welcome information for the Crawlab server, enhancing user experience during startup.
- Updated logger variable names in the apps package for consistency and clarity.
- Added a new dependency on github.com/common-nighthawk/go-figure to facilitate logo rendering.
- Improved the server command to display the logo when the server starts, provided the user is not using the pro version.

core/apps/utils.go

@@ -4,7 +4,7 @@ import (
 	"github.com/crawlab-team/crawlab/core/utils"
 )
 
-var utilsLogger = utils.NewLogger("AppsUtils")
+var logger = utils.NewLogger("Apps")
 
 func Start(app App) {
 	start(app)
@@ -19,9 +19,9 @@ func start(app App) {
 
 func initModule(name string, fn func() error) (err error) {
 	if err := fn(); err != nil {
-		utilsLogger.Errorf("init %s error: %v", name, err)
+		logger.Errorf("init %s error: %v", name, err)
 		panic(err)
 	}
-	utilsLogger.Infof("initialized %s successfully", name)
+	logger.Infof("initialized %s successfully", name)
 	return nil
 }

core/cmd/server.go

@@ -2,6 +2,7 @@ package cmd
 
 import (
 	"github.com/crawlab-team/crawlab/core/apps"
+	"github.com/crawlab-team/crawlab/core/utils"
 	"github.com/spf13/cobra"
 )
 
@@ -15,6 +16,11 @@ var serverCmd = &cobra.Command{
 	Short:   "Start Crawlab server",
 	Long:    `Start Crawlab node server that can serve as API, task scheduler, task runner, etc.`,
 	Run: func(cmd *cobra.Command, args []string) {
+		// print logo if not pro
+		if !utils.IsPro() {
+			utils.PrintLogoWithWelcomeInfo()
+		}
+
 		// app
 		svr := apps.GetServer()
 

core/go.mod

@@ -56,6 +56,7 @@ require (
 	github.com/cloudflare/circl v1.3.7 // indirect
 	github.com/cloudwego/base64x v0.1.4 // indirect
 	github.com/cloudwego/iasm v0.2.0 // indirect
+	github.com/common-nighthawk/go-figure v0.0.0-20210622060536-734e95fb86be // indirect
 	github.com/davecgh/go-spew v1.1.2-0.20180830191138-d8f796af33cc // indirect
 	github.com/emirpasic/gods v1.18.1 // indirect
 	github.com/felixge/httpsnoop v1.0.4 // indirect

core/go.sum

@@ -129,6 +129,8 @@ github.com/cncf/xds/go v0.0.0-20210922020428-25de7278fc84/go.mod h1:eXthEFrGJvWH
 github.com/cncf/xds/go v0.0.0-20211001041855-01bcc9b48dfe/go.mod h1:eXthEFrGJvWHgFFCl3hGmgk+/aYT6PnTQLykKQRLhEs=
 github.com/cncf/xds/go v0.0.0-20211011173535-cb28da3451f1/go.mod h1:eXthEFrGJvWHgFFCl3hGmgk+/aYT6PnTQLykKQRLhEs=
 github.com/cncf/xds/go v0.0.0-20211130200136-a8f946100490/go.mod h1:eXthEFrGJvWHgFFCl3hGmgk+/aYT6PnTQLykKQRLhEs=
+github.com/common-nighthawk/go-figure v0.0.0-20210622060536-734e95fb86be h1:J5BL2kskAlV9ckgEsNQXscjIaLiOYiZ75d4e94E6dcQ=
+github.com/common-nighthawk/go-figure v0.0.0-20210622060536-734e95fb86be/go.mod h1:mk5IQ+Y0ZeO87b858TlA645sVcEcbiX6YqP98kt+7+w=
 github.com/coreos/go-semver v0.3.0/go.mod h1:nnelYz7RCh+5ahJtPPxZlU+153eP4D4r3EedlOD2RNk=
 github.com/coreos/go-systemd/v22 v22.3.2/go.mod h1:Y58oyj3AT4RCenI/lSvhwexgC+NSVTIJ3seZv2GcEnc=
 github.com/cpuguy83/go-md2man/v2 v2.0.1/go.mod h1:tgQtvFlXSQOSOSIRvRPT7W67SCa46tRHOmNcaadrF8o=

core/utils/logo.go

@@ -0,0 +1,26 @@
+package utils
+
+import (
+	"fmt"
+	"github.com/common-nighthawk/go-figure"
+)
+
+func PrintLogoWithWelcomeInfo() {
+	printLogo()
+	printWelcomeInfo()
+}
+
+func printLogo() {
+	figure.NewColorFigure("Crawlab", "slant", "blue", true).Print()
+}
+
+func printWelcomeInfo() {
+	fmt.Println("Distributed web crawling platform for efficient, scalable data extraction.")
+	fmt.Println("For more information, please refer to the following resources:")
+	fmt.Println("- Website:        https://crawlab.cn")
+	fmt.Println("- Documentation:  https://docs.crawlab.cn")
+	fmt.Println("- GitHub:         https://github.com/crawlab-team/crawlab")
+	if IsMaster() {
+		fmt.Println("Visit https://localhost:8080 for the web ui, once the server is ready.")
+	}
+}