cmd/build-lambda-zip: remove dependency on github.com/urfave/cli/v2 (#…

…439)

* main.go fix copyright

* cmd/build-lambda-zip: remove dependency on github.com/urfave/cli/v2

cmd/build-lambda-zip/main.go

@@ -1,54 +1,44 @@
-// Copyright 2020 Amazon.com, Inc. or its affiliates. All Rights Reserved
+// Copyright 2018 Amazon.com, Inc. or its affiliates. All Rights Reserved
 
 package main
 
 import (
 	"archive/zip"
-	"errors"
+	"flag"
 	"fmt"
 	"io/ioutil"
 	"log"
 	"os"
 	"path/filepath"
-
-	"github.com/urfave/cli/v2"
 )
 
-func main() {
-	app := &cli.App{
-		Name:  "build-lambda-zip",
-		Usage: "Put an executable and supplemental files into a zip file that works with AWS Lambda.",
-		Flags: []cli.Flag{
-			&cli.StringFlag{
-				Name:    "output",
-				Aliases: []string{"o"},
-				Value:   "",
-				Usage:   "output file path for the zip. Defaults to the first input file name.",
-			},
-		},
-		Action: func(c *cli.Context) error {
-			if !c.Args().Present() {
-				return errors.New("no input provided")
-			}
-
-			inputExe := c.Args().First()
-			outputZip := c.String("output")
-			if outputZip == "" {
-				outputZip = fmt.Sprintf("%s.zip", filepath.Base(inputExe))
-			}
+const usage = `build-lambda-zip - Puts an executable and supplemental files into a zip file that works with AWS Lambda.
+usage:
+  build-lambda-zip [options] handler-exe [paths...]
+options:
+  -o, --output  output file path for the zip. (default: ${handler-exe}.zip)
+  -h, --help    prints usage
+`
 
-			if err := compressExeAndArgs(outputZip, inputExe, c.Args().Tail()); err != nil {
-				return fmt.Errorf("failed to compress file: %v", err)
-			}
-			log.Print("wrote " + outputZip)
-			return nil
-		},
+func main() {
+	var outputZip string
+	flag.StringVar(&outputZip, "o", "", "")
+	flag.StringVar(&outputZip, "output", "", "")
+	flag.Usage = func() {
+		fmt.Fprint(os.Stderr, usage)
 	}
-
-	if err := app.Run(os.Args); err != nil {
-		fmt.Fprintf(os.Stderr, "%v\n", err)
-		os.Exit(1)
+	flag.Parse()
+	if len(flag.Args()) == 0 {
+		log.Fatal("no input provided")
+	}
+	inputExe := flag.Arg(0)
+	if outputZip == "" {
+		outputZip = fmt.Sprintf("%s.zip", filepath.Base(inputExe))
+	}
+	if err := compressExeAndArgs(outputZip, inputExe, flag.Args()[1:]); err != nil {
+		log.Fatalf("failed to compress file: %v", err)
 	}
+	log.Printf("wrote %s", outputZip)
 }
 
 func writeExe(writer *zip.Writer, pathInZip string, data []byte) error {

go.mod

@@ -2,15 +2,10 @@ module github.com/aws/aws-lambda-go
 
 go 1.18
 
-require (
-	github.com/stretchr/testify v1.6.1
-	github.com/urfave/cli/v2 v2.4.0
-)
+require github.com/stretchr/testify v1.6.1
 
 require (
-	github.com/cpuguy83/go-md2man/v2 v2.0.1 // indirect
 	github.com/davecgh/go-spew v1.1.1 // indirect
 	github.com/pmezard/go-difflib v1.0.0 // indirect
-	github.com/russross/blackfriday/v2 v2.1.0 // indirect
 	gopkg.in/yaml.v3 v3.0.0-20200615113413-eeeca48fe776 // indirect
 )

go.sum

@@ -1,21 +1,13 @@
-github.com/BurntSushi/toml v0.3.1/go.mod h1:xHWCNGjB5oqiDr8zfno3MHue2Ht5sIBksp03qcyfWMU=
-github.com/cpuguy83/go-md2man/v2 v2.0.1 h1:r/myEWzV9lfsM1tFLgDyu0atFtJ1fXn261LKYj/3DxU=
-github.com/cpuguy83/go-md2man/v2 v2.0.1/go.mod h1:tgQtvFlXSQOSOSIRvRPT7W67SCa46tRHOmNcaadrF8o=
 github.com/davecgh/go-spew v1.1.0/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
 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/pmezard/go-difflib v1.0.0 h1:4DBwDE0NGyQoBHbLQYPwSUPoCMWR5BEzIk/f1lZbAQM=
 github.com/pmezard/go-difflib v1.0.0/go.mod h1:iKH77koFhYxTK1pcRnkKkqfTogsbg7gZNVY4sRDYZ/4=
-github.com/russross/blackfriday/v2 v2.1.0 h1:JIOH55/0cWyOuilr9/qlrm0BSXldqnqwMsf35Ld67mk=
-github.com/russross/blackfriday/v2 v2.1.0/go.mod h1:+Rmxgy9KzJVeS9/2gXHxylqXiyQDYRxCVz55jmeOWTM=
 github.com/stretchr/objx v0.1.0/go.mod h1:HFkY916IF+rwdDfMAkV7OtwuqBVzrE8GR6GFx+wExME=
 github.com/stretchr/testify v1.6.1 h1:hDPOHmpOpP40lSULcqw7IrRb/u7w6RpDC9399XyoNd0=
 github.com/stretchr/testify v1.6.1/go.mod h1:6Fq8oRcR53rry900zMqJjRRixrwX3KX962/h/Wwjteg=
-github.com/urfave/cli/v2 v2.4.0 h1:m2pxjjDFgDxSPtO8WSdbndj17Wu2y8vOT86wE/tjr+I=
-github.com/urfave/cli/v2 v2.4.0/go.mod h1:NX9W0zmTvedE5oDoOMs2RTC8RvdK98NTYZE5LbaEYPg=
 gopkg.in/check.v1 v0.0.0-20161208181325-20d25e280405 h1:yhCVgyC4o1eVCa2tZl7eS0r+SDo693bJlVdllGtEeKM=
 gopkg.in/check.v1 v0.0.0-20161208181325-20d25e280405/go.mod h1:Co6ibVJAznAaIkqp8huTwlJQCZ016jof/cbN4VW5Yz0=
-gopkg.in/yaml.v2 v2.2.8/go.mod h1:hI93XBmqTisBFMUTm0b8Fm+jr3Dg1NNxqwp+5A1VGuI=
 gopkg.in/yaml.v3 v3.0.0-20200313102051-9f266ea9e77c/go.mod h1:K4uyk7z7BCEPqu6E+C64Yfv1cQ7kz7rIZviUmN+EgEM=
 gopkg.in/yaml.v3 v3.0.0-20200615113413-eeeca48fe776 h1:tQIYjPdBoyREyB9XMu+nnTclpTYkz2zFM+lzLJFO4gQ=
 gopkg.in/yaml.v3 v3.0.0-20200615113413-eeeca48fe776/go.mod h1:K4uyk7z7BCEPqu6E+C64Yfv1cQ7kz7rIZviUmN+EgEM=