feat: v1

Makefile

@@ -8,8 +8,14 @@ include rules.mk
 generate: install
 	GO111MODULE=off go get github.com/campoy/embedmd
 	mkdir -p .tmp
-	echo 'foo@bar:~$$ totp-cli hello world' > .tmp/usage.txt
-	totp-cli hello world 2>&1 >> .tmp/usage.txt
+	echo 'foo@bar:~$$ totp-cli JBSWY3DPEHPK3PXP' > .tmp/usage.txt
+	totp-cli JBSWY3DPEHPK3PXP 2>&1 >> .tmp/usage.txt
+	echo 'foo@bar:~$$ totp-cli HXDMVJECJJWSRB3HWIZR4IFUGFTMXBOZ JBSWY3DPEHPK3PXP' >> .tmp/usage.txt
+	totp-cli HXDMVJECJJWSRB3HWIZR4IFUGFTMXBOZ JBSWY3DPEHPK3PXP 2>&1 >> .tmp/usage.txt
+	echo 'foo@bar:~$$ sleep 30' >> .tmp/usage.txt
+	sleep 30
+	echo 'foo@bar:~$$ totp-cli HXDMVJECJJWSRB3HWIZR4IFUGFTMXBOZ JBSWY3DPEHPK3PXP' >> .tmp/usage.txt
+	totp-cli HXDMVJECJJWSRB3HWIZR4IFUGFTMXBOZ JBSWY3DPEHPK3PXP 2>&1 >> .tmp/usage.txt
 	embedmd -w README.md
 	rm -rf .tmp
 .PHONY: generate

README.md

@@ -22,14 +22,15 @@
 
 [embedmd]:# (.tmp/usage.txt console)
 ```console
-foo@bar:~$ totp-cli hello world
-            _                                                   _                      _        _
- __ _  ___ | | __ _  _ _   __ _  ___  _ _  ___  _ __  ___  ___ | |_  ___  _ __   _ __ | | __ _ | |_  ___
-/ _` |/ _ \| |/ _` || ' \ / _` ||___|| '_|/ -_)| '_ \/ _ \|___||  _|/ -_)| '  \ | '_ \| |/ _` ||  _|/ -_)
-\__, |\___/|_|\__,_||_||_|\__, |     |_|  \___|| .__/\___/      \__|\___||_|_|_|| .__/|_|\__,_| \__|\___|
-|___/                     |___/                |_|                              |_|
-12 CPUs, /home/moul/.gvm/pkgsets/go1.16/global/bin/totp-cli, fwrz, go1.16
-args ["totp-cli","hello","world"]
+foo@bar:~$ totp-cli JBSWY3DPEHPK3PXP
+259247
+foo@bar:~$ totp-cli HXDMVJECJJWSRB3HWIZR4IFUGFTMXBOZ JBSWY3DPEHPK3PXP
+382939
+259247
+foo@bar:~$ sleep 30
+foo@bar:~$ totp-cli HXDMVJECJJWSRB3HWIZR4IFUGFTMXBOZ JBSWY3DPEHPK3PXP
+691006
+421766
 ```
 
 ## Install

main.go

@@ -2,30 +2,33 @@ package main
 
 import (
 	"fmt"
-	"math/rand"
 	"os"
+	"time"
 
-	"moul.io/motd"
-	"moul.io/srand"
-	"moul.io/u"
-	"moul.io/zapconfig"
+	"github.com/pquerna/otp/totp"
+	"go.uber.org/multierr"
 )
 
 func main() {
-	if err := run(os.Args); err != nil {
+	if err := run(os.Args[1:]); err != nil {
 		fmt.Fprintf(os.Stderr, "error: %v\n", err)
 		os.Exit(1)
 	}
 }
 
 func run(args []string) error {
-	rand.Seed(srand.Fast())
-	fmt.Print(motd.Default())
-	logger, err := zapconfig.Configurator{}.Build()
-	if err != nil {
-		return err
+	if len(args) < 1 {
+		return fmt.Errorf("usage: totp-cli <TOKEN...>") // nolint:goerr113
 	}
-	logger.Info("Hello World!")
-	fmt.Println("args", u.JSON(args))
-	return nil
+	now := time.Now()
+	var errs error
+	for _, arg := range args {
+		code, err := totp.GenerateCode(arg, now)
+		if err != nil {
+			errs = multierr.Append(errs, fmt.Errorf("%q: %w", arg, err))
+		} else {
+			fmt.Println(code)
+		}
+	}
+	return errs
 }

main_test.go

@@ -7,7 +7,7 @@ import (
 )
 
 func TestRun(t *testing.T) {
-	err := run(nil)
+	err := run([]string{"JBSWY3DPEHPK3PXP"})
 	if err != nil {
 		t.Fatalf("err should be nil: %v", err)
 	}