feat(prints): Added console output functions with color and confirmation support.

go.mod

@@ -4,6 +4,7 @@ go 1.20
 
 require (
 	github.com/davecgh/go-spew v1.1.1
+	github.com/fatih/color v1.16.0
 	github.com/gin-gonic/gin v1.9.1
 	github.com/go-kratos/kratos/v2 v2.7.2
 	github.com/google/uuid v1.6.0
@@ -33,7 +34,8 @@ require (
 	github.com/klauspost/cpuid/v2 v2.2.4 // indirect
 	github.com/kr/text v0.2.0 // indirect
 	github.com/leodido/go-urn v1.2.4 // indirect
-	github.com/mattn/go-isatty v0.0.19 // indirect
+	github.com/mattn/go-colorable v0.1.13 // indirect
+	github.com/mattn/go-isatty v0.0.20 // indirect
 	github.com/modern-go/concurrent v0.0.0-20180306012644-bacd9c7ef1dd // indirect
 	github.com/modern-go/reflect2 v1.0.2 // indirect
 	github.com/pelletier/go-toml/v2 v2.0.8 // indirect

go.sum

@@ -14,6 +14,8 @@ github.com/davecgh/go-spew v1.1.1 h1:vj9j/u1bqnvCEfJOwUhtlOARqs3+rkHYY13jYWTU97c
 github.com/davecgh/go-spew v1.1.1/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
 github.com/dgryski/go-rendezvous v0.0.0-20200823014737-9f7001d12a5f h1:lO4WD4F/rVNCu3HqELle0jiPLLBs70cWOduZpkS1E78=
 github.com/dgryski/go-rendezvous v0.0.0-20200823014737-9f7001d12a5f/go.mod h1:cuUVRXasLTGF7a8hSLbxyZXjz+1KgoB3wDUb6vlszIc=
+github.com/fatih/color v1.16.0 h1:zmkK9Ngbjj+K0yRhTVONQh1p/HknKYSlNT+vZCzyokM=
+github.com/fatih/color v1.16.0/go.mod h1:fL2Sau1YI5c0pdGEVCbKQbLXB6edEj1ZgiY4NijnWvE=
 github.com/gabriel-vasile/mimetype v1.4.2 h1:w5qFW6JKBz9Y393Y4q372O9A7cUSequkh1Q7OhCmWKU=
 github.com/gabriel-vasile/mimetype v1.4.2/go.mod h1:zApsH/mKG4w07erKIaJPFiX0Tsq9BFQgN3qGY5GnNgA=
 github.com/gin-contrib/sse v0.1.0 h1:Y/yl/+YNO8GZSjAhjMsSuLt29uWRFHdHYUb5lYOV9qE=
@@ -57,8 +59,11 @@ github.com/kr/text v0.2.0 h1:5Nx0Ya0ZqY2ygV366QzturHI13Jq95ApcVaJBhpS+AY=
 github.com/kr/text v0.2.0/go.mod h1:eLer722TekiGuMkidMxC/pM04lWEeraHUUmBw8l2grE=
 github.com/leodido/go-urn v1.2.4 h1:XlAE/cm/ms7TE/VMVoduSpNBoyc2dOxHs5MZSwAN63Q=
 github.com/leodido/go-urn v1.2.4/go.mod h1:7ZrI8mTSeBSHl/UaRyKQW1qZeMgak41ANeCNaVckg+4=
-github.com/mattn/go-isatty v0.0.19 h1:JITubQf0MOLdlGRuRq+jtsDlekdYPia9ZFsB8h/APPA=
-github.com/mattn/go-isatty v0.0.19/go.mod h1:W+V8PltTTMOvKvAeJH7IuucS94S2C6jfK/D7dTCTo3Y=
+github.com/mattn/go-colorable v0.1.13 h1:fFA4WZxdEF4tXPZVKMLwD8oUnCTTo08duU7wxecdEvA=
+github.com/mattn/go-colorable v0.1.13/go.mod h1:7S9/ev0klgBDR4GtXTXX8a3vIGJpMovkB8vQcUbaXHg=
+github.com/mattn/go-isatty v0.0.16/go.mod h1:kYGgaQfpe5nmfYZH+SKPsOc2e4SrIfOl2e/yFXSvRLM=
+github.com/mattn/go-isatty v0.0.20 h1:xfD0iDuEKnDkl03q4limB+vH+GxLEtL/jb4xVJSWWEY=
+github.com/mattn/go-isatty v0.0.20/go.mod h1:W+V8PltTTMOvKvAeJH7IuucS94S2C6jfK/D7dTCTo3Y=
 github.com/modern-go/concurrent v0.0.0-20180228061459-e0a39a4cb421/go.mod h1:6dJC0mAP4ikYIbvyc7fijjWJddQyLn8Ig3JB5CqoB9Q=
 github.com/modern-go/concurrent v0.0.0-20180306012644-bacd9c7ef1dd h1:TRLaZ9cD/w8PVh93nsPXa1VrQ6jlwL5oN8l14QlcNfg=
 github.com/modern-go/concurrent v0.0.0-20180306012644-bacd9c7ef1dd/go.mod h1:6dJC0mAP4ikYIbvyc7fijjWJddQyLn8Ig3JB5CqoB9Q=
@@ -99,6 +104,7 @@ golang.org/x/net v0.17.0/go.mod h1:NxSsAGuq816PNPmqtQdLE42eU2Fs7NoRIZrHJAlaCOE=
 golang.org/x/sync v0.4.0 h1:zxkM55ReGkDlKSM+Fu41A+zmbZuaPVbGMzvvdUPznYQ=
 golang.org/x/sync v0.4.0/go.mod h1:FU7BRWz2tNW+3quACPkgCx/L+uEAv1htQ0V83Z9Rj+Y=
 golang.org/x/sys v0.0.0-20220704084225-05e143d24a9e/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
+golang.org/x/sys v0.0.0-20220811171246-fbc7d0a398ab/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
 golang.org/x/sys v0.6.0/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
 golang.org/x/sys v0.16.0 h1:xWw16ngr6ZMtmxDyKyIgsE93KNKz5HKmMa3b8ALHidU=
 golang.org/x/sys v0.16.0/go.mod h1:/VUhepiaJMQUp4+oa/7Zr1D23ma6VTLIYjOOTFZPUcA=

prints/README.md

@@ -0,0 +1,53 @@
+# Prints
+
+## Usage
+
+```go
+package main
+
+import (
+	"fmt"
+
+	"github.com/go-kratos-ecosystem/components/v2/prints"
+)
+
+func main() {
+	// basic
+	fmt.Println("Hello World!", "Hello Go!")
+	prints.Line("Line: Hello World!", "Hello Go!")              
+	prints.Linef("Linef: %s %s\n", "Hello World!", "Hello Go!") 
+	prints.NewLine()                                            
+	println("----------------------------------------")
+	prints.NewLine(0) 
+	println("----------------------------------------")
+	prints.NewLine(1) 
+	println("----------------------------------------")
+	prints.NewLine(2) 
+	println("----------------------------------------")
+	prints.NewLine(3)                                                 
+	prints.Info("Info: Hello World!", "Hello Go!")                    
+	prints.Infof("Infof: %s %s\n", "Hello World!", "Hello Go!")       
+	prints.Comment("Comment: Hello World!", "Hello Go!")              
+	prints.Commentf("Commentf: %s %s\n", "Hello World!", "Hello Go!") 
+	prints.Error("Error: Hello World!", "Hello Go!")                  
+	prints.Errorf("Errorf: %s %s\n", "Hello World!", "Hello Go!")     
+	prints.Warn("Warn: Hello World!", "Hello Go!")                    
+	prints.Warnf("Warnf: %s %s\n", "Hello World!", "Hello Go!")       
+	prints.Alert("Alert: Hello World!", "Hello Go!")                  
+	prints.Alertf("Alertf: %s %s\n", "Hello World!", "Hello Go!")     
+
+	// prompt
+	r1, _ := prints.Ask("What is your name?", "FLC") 
+	if r1 == "FLC" {
+		prints.Warn("You are FLC!") 
+	} else {
+		prints.Infof("You are %s!\n", r1) 
+	}
+	r2, _ := prints.Ask("What is your name?") 
+	prints.Info(r2)                           
+}
+```
+
+Output:
+
+![](output.jpg)

prints/basic.go

@@ -0,0 +1,76 @@
+package prints
+
+import (
+	"strings"
+
+	"github.com/fatih/color"
+)
+
+var (
+	line    = color.New()
+	info    = color.New(color.FgGreen)
+	comment = color.New(color.FgYellow)
+	errs    = color.New(color.FgRed)
+	warn    = color.New(color.FgHiYellow)
+	alert   = comment
+)
+
+func Line(a ...interface{}) (int, error) {
+	return line.Println(a...)
+}
+
+func Linef(format string, a ...interface{}) (int, error) {
+	return line.Printf(format, a...)
+}
+
+func NewLine(length ...int) (int, error) {
+	var brs []string
+
+	if len(length) > 0 {
+		for i := 0; i < length[0]-1; i++ {
+			brs = append(brs, "\n")
+		}
+	}
+
+	return line.Println(strings.Join(brs, ""), "")
+}
+
+func Info(a ...interface{}) (int, error) {
+	return info.Println(a...)
+}
+
+func Infof(format string, a ...interface{}) (int, error) {
+	return info.Printf(format, a...)
+}
+
+func Comment(a ...interface{}) (int, error) {
+	return comment.Println(a...)
+}
+
+func Commentf(format string, a ...interface{}) (int, error) {
+	return comment.Printf(format, a...)
+}
+
+func Error(a ...interface{}) (int, error) {
+	return errs.Println(a...)
+}
+
+func Errorf(format string, a ...interface{}) (int, error) {
+	return errs.Printf(format, a...)
+}
+
+func Warn(a ...interface{}) (int, error) {
+	return warn.Println(a...)
+}
+
+func Warnf(format string, a ...interface{}) (int, error) {
+	return warn.Printf(format, a...)
+}
+
+func Alert(a ...interface{}) (int, error) {
+	return alert.Println(a...)
+}
+
+func Alertf(format string, a ...interface{}) (int, error) {
+	return alert.Printf(format, a...)
+}

prints/basic_test.go

@@ -0,0 +1,19 @@
+package prints
+
+import "testing"
+
+func TestInfo(*testing.T) {
+	Line("Line: Hello World!", "Hello Go!")                    //nolint:errcheck
+	Linef("Linef: %s %s\n", "Hello World!", "Hello Go!")       //nolint:errcheck
+	NewLine()                                                  //nolint:errcheck
+	Info("Info: Hello World!", "Hello Go!")                    //nolint:errcheck
+	Infof("Infof: %s %s\n", "Hello World!", "Hello Go!")       //nolint:errcheck
+	Comment("Comment: Hello World!", "Hello Go!")              //nolint:errcheck
+	Commentf("Commentf: %s %s\n", "Hello World!", "Hello Go!") //nolint:errcheck
+	Error("Error: Hello World!", "Hello Go!")                  //nolint:errcheck
+	Errorf("Errorf: %s %s\n", "Hello World!", "Hello Go!")     //nolint:errcheck
+	Warn("Warn: Hello World!", "Hello Go!")                    //nolint:errcheck
+	Warnf("Warnf: %s %s\n", "Hello World!", "Hello Go!")       //nolint:errcheck
+	Alert("Alert: Hello World!", "Hello Go!")                  //nolint:errcheck
+	Alertf("Alertf: %s %s\n", "Hello World!", "Hello Go!")     //nolint:errcheck
+}

prints/prompt.go

@@ -0,0 +1,74 @@
+package prints
+
+import (
+	"bufio"
+	"os"
+	"strings"
+)
+
+type Prompt struct {
+	question string
+
+	defaultAnswer string
+	secret        bool // TODO: support secret
+}
+
+type PromptOption func(*Prompt)
+
+func WithDefaultAnswer(defaultAnswer string) PromptOption {
+	return func(p *Prompt) {
+		p.defaultAnswer = defaultAnswer
+	}
+}
+
+func WithSecret() PromptOption {
+	return func(p *Prompt) {
+		p.secret = true
+	}
+}
+
+func NewPrompt(question string, opts ...PromptOption) *Prompt {
+	p := &Prompt{
+		question: question,
+	}
+
+	for _, opt := range opts {
+		opt(p)
+	}
+
+	return p
+}
+
+func (p *Prompt) Ask() (string, error) {
+	if _, err := Infof("%s ", p.question); err != nil {
+		return "", err
+	}
+	if p.defaultAnswer != "" {
+		if _, err := Alertf("[%s] ", p.defaultAnswer); err != nil {
+			return "", err
+		}
+	}
+	if _, err := Linef("\n> "); err != nil {
+		return "", err
+	}
+
+	reader := bufio.NewReader(os.Stdin)
+	input, err := reader.ReadString('\n')
+	if err != nil {
+		return "", err
+	}
+	input = strings.TrimSpace(input)
+	if input == "" {
+		return p.defaultAnswer, nil
+	}
+	return input, nil
+}
+
+func Ask(question string, defaults ...string) (string, error) {
+	var opts []PromptOption
+	if len(defaults) > 0 {
+		opts = append(opts, WithDefaultAnswer(defaults[0]))
+	}
+
+	return NewPrompt(question, opts...).Ask()
+}