Add outputs command and test

cmd/outputs.go

@@ -0,0 +1,51 @@
+// Copyright © 2017 Aidan Steele <[email protected]>
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+package cmd
+
+import (
+	"github.com/aws/aws-sdk-go/service/cloudformation"
+	"github.com/aws/aws-sdk-go/service/sts"
+	"github.com/glassechidna/stackit/cmd/honey"
+	"github.com/glassechidna/stackit/pkg/stackit"
+	"github.com/spf13/cobra"
+	"github.com/spf13/viper"
+)
+
+var outputsCmd = &cobra.Command{
+	Use:   "outputs",
+	Short: "Prints a given stack's Outputs",
+	Run: func(cmd *cobra.Command, args []string) {
+		region := viper.GetString("region")
+		profile := viper.GetString("profile")
+		stackName := viper.GetString("stack-name")
+
+		sess := awsSession(profile, region)
+		sit := stackit.NewStackit(cloudformation.New(sess), sts.New(sess))
+
+		ctx, end := honey.RootContext()
+		defer end()
+
+		stack, _ := sit.Describe(ctx, stackName)
+		if stack == nil {
+			return
+		}
+
+		sit.PrintOutputs(ctx, *stack.StackId, cmd.OutOrStdout())
+	},
+}
+
+func init() {
+	RootCmd.AddCommand(outputsCmd)
+}

cmd/outputs_test.go

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+package cmd
+
+import (
+	"bytes"
+	"io"
+	"os"
+	"regexp"
+	"testing"
+
+	"github.com/stretchr/testify/assert"
+)
+
+func TestOutputs(t *testing.T) {
+	if testing.Short() {
+		t.Skip("skip e2e tests in short mode")
+	}
+
+	buf := &bytes.Buffer{}
+
+	t.Run("up", func(t *testing.T) {
+		RootCmd.SetArgs([]string{
+			"up",
+			"--stack-name", "test-stack-s3",
+			"--template", "../sample/s3.yml",
+		})
+		_ = RootCmd.Execute()
+	})
+
+	buf.Reset()
+
+	t.Run("outputs", func(t *testing.T) {
+		RootCmd.SetArgs([]string{
+			"outputs",
+			"--stack-name", "test-stack-s3",
+		})
+
+		buf := &bytes.Buffer{}
+		out := io.MultiWriter(buf, os.Stderr)
+		RootCmd.SetOutput(out)
+
+		_ = RootCmd.Execute()
+
+		assert.Regexp(t, regexp.MustCompile(`\{
+  "S3BucketName": "test-stack-s3-s3bucket-[a-z0-9]*"
+\}
+`), buf.String())
+	})
+
+	t.Run("down", func(t *testing.T) {
+		RootCmd.SetArgs([]string{
+			"down",
+			"--stack-name", "test-stack-s3",
+		})
+		_ = RootCmd.Execute()
+	})
+}

sample/s3.yml

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+AWSTemplateFormatVersion: 2010-09-09
+Resources:
+  S3Bucket:
+    Type: AWS::S3::Bucket
+Outputs:
+  S3BucketName:
+    Value: !Ref S3Bucket
+    Description: S3 Bucket name