feat: add Go function template (#3180)

src/commands/functions/create.js

@@ -25,12 +25,15 @@ const { readRepoURL, validateRepoURL } = require('../../utils/read-repo-url')
 
 const templatesDir = path.resolve(__dirname, '../../functions-templates')
 
+const showGoTemplates = process.env.NETLIFY_EXPERIMENTAL_BUILD_GO_SOURCE === 'true'
+
 // Ensure that there's a sub-directory in `src/functions-templates` named after
 // each `value` property in this list, and that it matches the extension of the
 // files used by that language.
 const languages = [
   { name: 'JavaScript', value: 'js' },
   { name: 'TypeScript', value: 'ts' },
+  showGoTemplates && { name: 'Go', value: 'go' },
 ]
 
 /**
@@ -168,7 +171,7 @@ const pickTemplate = async function () {
     new inquirer.Separator(),
   ]
   const { language } = await inquirer.prompt({
-    choices: languages,
+    choices: languages.filter(Boolean),
     message: 'Select the language of your function',
     name: 'language',
     type: 'list',

src/functions-templates/go/hello-world/.netlify-function-template.js

@@ -0,0 +1,5 @@
+module.exports = {
+  name: 'hello-world',
+  priority: 1,
+  description: 'Basic function that shows how to create a handler and return a response',
+}

src/functions-templates/go/hello-world/go.mod

@@ -0,0 +1,5 @@
+module github.com/someone/{{name}}
+
+go 1.15
+
+require github.com/aws/aws-lambda-go v1.20.0

src/functions-templates/go/hello-world/go.sum

@@ -0,0 +1,22 @@
+github.com/BurntSushi/toml v0.3.1/go.mod h1:xHWCNGjB5oqiDr8zfno3MHue2Ht5sIBksp03qcyfWMU=
+github.com/aws/aws-lambda-go v1.20.0 h1:ZSweJx/Hy9BoIDXKBEh16vbHH0t0dehnF8MKpMiOWc0=
+github.com/aws/aws-lambda-go v1.20.0/go.mod h1:jJmlefzPfGnckuHdXX7/80O3BvUUi12XOkbv4w9SGLU=
+github.com/cpuguy83/go-md2man/v2 v2.0.0-20190314233015-f79a8a8ca69d/go.mod h1:maD7wRr/U5Z6m/iR4s+kqSMx2CaBsrgA7czyZG/E6dU=
+github.com/cpuguy83/go-md2man/v2 v2.0.0/go.mod h1:maD7wRr/U5Z6m/iR4s+kqSMx2CaBsrgA7czyZG/E6dU=
+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 v2.0.1/go.mod h1:+Rmxgy9KzJVeS9/2gXHxylqXiyQDYRxCVz55jmeOWTM=
+github.com/shurcooL/sanitized_anchor_name v1.0.0/go.mod h1:1NzhyTcUVG4SuEtjjoZeVRXNmyL/1OwPU0+IJeTBvfc=
+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 v2.2.0/go.mod h1:SE9GqnLQmjVa0iPEY0f1w3ygNIYcIJ0OKPMoW2caLfQ=
+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 v2.2.2/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=

src/functions-templates/go/hello-world/main.go

@@ -0,0 +1,24 @@
+package main
+
+import (
+	"context"
+	"fmt"
+
+	"github.com/aws/aws-lambda-go/events"
+	"github.com/aws/aws-lambda-go/lambda"
+)
+
+func handler(ctx context.Context, request events.APIGatewayProxyRequest) (*events.APIGatewayProxyResponse, error) {
+	fmt.Println("This message will show up in the CLI console.")
+
+	return &events.APIGatewayProxyResponse{
+		StatusCode:      200,
+		Headers:         map[string]string{"Content-Type": "text/plain"},
+		Body:            "Hello, world!",
+		IsBase64Encoded: false,
+	}, nil
+}
+
+func main() {
+	lambda.Start(handler)
+}