Add env update command

Env update updates the libs for an environment.

Fixes #454
Signed-off-by: bryanl <bryanliles@gmail.com>

actions/env_udpate.go

+// Copyright 2018 The ksonnet authors
+//
+//
+//    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 actions
+
+import (
+	"fmt"
+
+	"github.com/ksonnet/ksonnet/metadata/app"
+	"github.com/ksonnet/ksonnet/pkg/lib"
+)
+
+// RunEnvUpdate runs `env update`.
+func RunEnvUpdate(m map[string]interface{}) error {
+	a, err := newEnvUpdate(m)
+	if err != nil {
+		return err
+	}
+
+	return a.run()
+}
+
+// EnvUpdate updates ksonnet lib for an environment.
+type EnvUpdate struct {
+	app     app.App
+	envName string
+
+	genLibFn func(app.App, string, string) error
+}
+
+// RunEnvUpdate runs `env update`
+func newEnvUpdate(m map[string]interface{}) (*EnvUpdate, error) {
+	ol := newOptionLoader(m)
+
+	eu := &EnvUpdate{
+		app:     ol.LoadApp(),
+		envName: ol.LoadString(OptionEnvName),
+
+		genLibFn: genLib,
+	}
+
+	if ol.err != nil {
+		return nil, ol.err
+	}
+
+	return eu, nil
+}
+
+func (eu *EnvUpdate) run() error {
+	envSpec, err := eu.app.Environment(eu.envName)
+	if err != nil {
+		return err
+	}
+
+	k8sSpecFlag := fmt.Sprintf("version:%s", envSpec.KubernetesVersion)
+
+	libPath, err := eu.app.LibPath(eu.envName)
+	if err != nil {
+		return err
+	}
+
+	return eu.genLibFn(eu.app, k8sSpecFlag, libPath)
+
+}
+
+func genLib(a app.App, k8sSpecFlag, libPath string) error {
+	libManager, err := lib.NewManager(k8sSpecFlag, a.Fs(), libPath)
+	if err != nil {
+		return err
+	}
+
+	if err = a.Fs().RemoveAll(libPath); err != nil {
+		return err
+	}
+
+	return libManager.GenerateLibData(false)
+}

actions/env_update_test.go

+// Copyright 2018 The ksonnet authors
+//
+//
+//    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 actions
+
+import (
+	"testing"
+
+	"github.com/ksonnet/ksonnet/metadata/app"
+	amocks "github.com/ksonnet/ksonnet/metadata/app/mocks"
+	"github.com/stretchr/testify/assert"
+	"github.com/stretchr/testify/require"
+)
+
+func TestEnvUpdate(t *testing.T) {
+	withApp(t, func(appMock *amocks.App) {
+
+		envSpec := &app.EnvironmentSpec{
+			KubernetesVersion: "v1.8.9",
+		}
+		appMock.On("Environment", "envName").Return(envSpec, nil)
+		appMock.On("LibPath", "envName").Return("/app/lib/v1.8.9", nil)
+
+		in := map[string]interface{}{
+			OptionApp:     appMock,
+			OptionEnvName: "envName",
+		}
+
+		a, err := newEnvUpdate(in)
+		require.NoError(t, err)
+
+		a.genLibFn = func(_ app.App, k8sSpecFlag, libPath string) error {
+			assert.Equal(t, "version:v1.8.9", k8sSpecFlag)
+			assert.Equal(t, "/app/lib/v1.8.9", libPath)
+			return nil
+		}
+
+		err = a.run()
+		require.NoError(t, err)
+	})
+}

cmd/actions.go

@@ -35,6 +35,7 @@ const (
 	actionEnvRm
 	actionEnvSet
 	actionEnvTargets
+	actionEnvUpdate
 	actionImport
 	actionInit
 	actionModuleCreate
@@ -76,6 +77,7 @@ var (
 		actionEnvRm:             actions.RunEnvRm,
 		actionEnvSet:            actions.RunEnvSet,
 		actionEnvTargets:        actions.RunEnvTargets,
+		actionEnvUpdate:         actions.RunEnvUpdate,
 		actionImport:            actions.RunImport,
 		actionInit:              actions.RunInit,
 		actionModuleCreate:      actions.RunModuleCreate,

cmd/env.go

@@ -41,6 +41,7 @@ var (
 		"list":    "List all environments in a ksonnet application",
 		"rm":      "Delete an environment from a ksonnet application",
 		"set":     "Set environment-specific fields (name, namespace, server)",
+		"update":  "Updates the libs for an environment",
 	}
 )
 

cmd/env_update.go

+// Copyright 2018 The ksonnet authors
+//
+//
+//    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 (
+	"fmt"
+
+	"github.com/ksonnet/ksonnet/actions"
+	"github.com/spf13/cobra"
+)
+
+var envUpdateCmd = &cobra.Command{
+	Use:   "update <env-name>",
+	Short: envShortDesc["update"],
+	RunE: func(cmd *cobra.Command, args []string) error {
+		if len(args) != 1 {
+			return fmt.Errorf("'env update' takes a single argument, that is the name of the environment")
+		}
+
+		m := map[string]interface{}{
+			actions.OptionApp:     ka,
+			actions.OptionEnvName: args[0],
+		}
+
+		return runAction(actionEnvUpdate, m)
+	},
+	Long: `
+The ` + "`update`" + ` command updates libraries for an environment.
+
+### Related Commands
+
+* ` + "`ks env list` " + `— ` + protoShortDesc["list"] + `
+* ` + "`ks env add` " + `— ` + protoShortDesc["add"] + `
+* ` + "`ks env set` " + `— ` + protoShortDesc["set"] + `
+* ` + "`ks delete` " + `— ` + `Delete all the app components running in an environment (cluster)` + `
+
+### Syntax
+`,
+	Example: `
+# Update the environment 'us-west/staging' libs.
+ks env update us-west/staging`,
+}
+
+func init() {
+	envCmd.AddCommand(envUpdateCmd)
+}

cmd/env_update_test.go

+// Copyright 2018 The ksonnet authors
+//
+//
+//    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 (
+	"testing"
+
+	"github.com/ksonnet/ksonnet/actions"
+)
+
+func Test_envUpdateCmd(t *testing.T) {
+	cases := []cmdTestCase{
+		{
+			name:   "in general",
+			args:   []string{"env", "update", "prod"},
+			action: actionEnvUpdate,
+			expected: map[string]interface{}{
+				actions.OptionApp:     ka,
+				actions.OptionEnvName: "prod",
+			},
+		},
+	}
+
+	runTestCmd(t, cases)
+}

docs/cli-reference/ks_env.md

@@ -83,4 +83,5 @@ ks env [flags]
 * [ks env rm](ks_env_rm.md)	 - Delete an environment from a ksonnet application
 * [ks env set](ks_env_set.md)	 - Set environment-specific fields (name, namespace, server)
 * [ks env targets](ks_env_targets.md)	 - targets
+* [ks env update](ks_env_update.md)	 - Updates the libs for an environment
 

docs/cli-reference/ks_env_update.md

+## ks env update
+
+Updates the libs for an environment
+
+### Synopsis
+
+
+The `update` command updates libraries for an environment.
+
+### Related Commands
+
+* `ks env list` — List all locally available ksonnet prototypes
+* `ks env add` — 
+* `ks env set` — 
+* `ks delete` — Delete all the app components running in an environment (cluster)
+
+### Syntax
+
+
+```
+ks env update <env-name> [flags]
+```
+
+### Examples
+
+```
+
+# Update the environment 'us-west/staging' libs.
+ks env update us-west/staging
+```
+
+### Options
+
+```
+  -h, --help   help for update
+```
+
+### Options inherited from parent commands
+
+```
+      --as string                      Username to impersonate for the operation
+      --as-group stringArray           Group to impersonate for the operation, this flag can be repeated to specify multiple groups.
+      --certificate-authority string   Path to a cert file for the certificate authority
+      --client-certificate string      Path to a client certificate file for TLS
+      --client-key string              Path to a client key file for TLS
+      --cluster string                 The name of the kubeconfig cluster to use
+      --context string                 The name of the kubeconfig context to use
+      --insecure-skip-tls-verify       If true, the server's certificate will not be checked for validity. This will make your HTTPS connections insecure
+      --kubeconfig string              Path to a kubeconfig file. Alternative to env var $KUBECONFIG.
+  -n, --namespace string               If present, the namespace scope for this CLI request
+      --password string                Password for basic authentication to the API server
+      --request-timeout string         The length of time to wait before giving up on a single server request. Non-zero values should contain a corresponding time unit (e.g. 1s, 2m, 3h). A value of zero means don't timeout requests. (default "0")
+      --server string                  The address and port of the Kubernetes API server
+      --token string                   Bearer token for authentication to the API server
+      --user string                    The name of the kubeconfig user to use
+      --username string                Username for basic authentication to the API server
+  -v, --verbose count[=-1]             Increase verbosity. May be given multiple times.
+```
+
+### SEE ALSO
+
+* [ks env](ks_env.md)	 - Manage ksonnet environments
+

metadata/app/app.go

@@ -20,7 +20,7 @@ import (
 	"path/filepath"
 	"sort"
 
-	"github.com/ksonnet/ksonnet/metadata/lib"
+	"github.com/ksonnet/ksonnet/pkg/lib"
 	"github.com/pkg/errors"
 	"github.com/spf13/afero"
 )

metadata/app/app010.go

@@ -21,7 +21,7 @@ import (
 	"path/filepath"
 	"strings"
 
-	"github.com/ksonnet/ksonnet/metadata/lib"
+	"github.com/ksonnet/ksonnet/pkg/lib"
 
 	"github.com/pkg/errors"
 	"github.com/spf13/afero"