github.com/spinnaker/spin@v1.30.0/cmd/application/get.go (about)

     1  // Copyright (c) 2018, Google, Inc.
     2  //
     3  // Licensed under the Apache License, Version 2.0 (the "License");
     4  // you may not use this file except in compliance with the License.
     5  // You may obtain a copy of the License at
     6  //
     7  //   http://www.apache.org/licenses/LICENSE-2.0
     8  //
     9  //   Unless required by applicable law or agreed to in writing, software
    10  //   distributed under the License is distributed on an "AS IS" BASIS,
    11  //   WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
    12  //   See the License for the specific language governing permissions and
    13  //   limitations under the License.
    14  
    15  package application
    16  
    17  import (
    18  	"fmt"
    19  	"net/http"
    20  
    21  	"github.com/antihax/optional"
    22  	"github.com/spf13/cobra"
    23  
    24  	gate "github.com/spinnaker/spin/gateapi"
    25  	"github.com/spinnaker/spin/util"
    26  )
    27  
    28  type getOptions struct {
    29  	*applicationOptions
    30  	expand bool
    31  }
    32  
    33  var (
    34  	getApplicationShort   = "Get the specified application"
    35  	getApplicationLong    = "Get the specified application"
    36  	getApplicationExample = "usage: spin application get [options] application-name"
    37  )
    38  
    39  func NewGetCmd(appOptions *applicationOptions) *cobra.Command {
    40  	options := &getOptions{
    41  		applicationOptions: appOptions,
    42  		expand:             false,
    43  	}
    44  
    45  	cmd := &cobra.Command{
    46  		Use:     "get",
    47  		Aliases: []string{"get"},
    48  		Short:   getApplicationShort,
    49  		Long:    getApplicationLong,
    50  		Example: getApplicationExample,
    51  		RunE: func(cmd *cobra.Command, args []string) error {
    52  			return getApplication(cmd, options, args)
    53  		},
    54  	}
    55  
    56  	// Note that false here means defaults to false, and flips to true if the flag is present.
    57  	cmd.PersistentFlags().BoolVarP(&options.expand, "expand", "x", false, "expand app payload to include clusters")
    58  
    59  	return cmd
    60  }
    61  
    62  func getApplication(cmd *cobra.Command, options *getOptions, args []string) error {
    63  	applicationName, err := util.ReadArgsOrStdin(args)
    64  	if err != nil {
    65  		return err
    66  	}
    67  
    68  	app, resp, err := options.GateClient.ApplicationControllerApi.GetApplicationUsingGET(options.GateClient.Context, applicationName, &gate.ApplicationControllerApiGetApplicationUsingGETOpts{Expand: optional.NewBool(options.expand)})
    69  	if resp != nil {
    70  		switch resp.StatusCode {
    71  		case http.StatusOK:
    72  			// pass
    73  		case http.StatusNotFound:
    74  			return fmt.Errorf("Application '%s' not found\n", applicationName)
    75  		default:
    76  			return fmt.Errorf("Encountered an error getting application, status code: %d\n", resp.StatusCode)
    77  		}
    78  	}
    79  
    80  	if err != nil {
    81  		return err
    82  	}
    83  
    84  	if options.expand {
    85  		// NOTE: expand returns the actual attributes as well as the app's cluster details, nested in
    86  		// their own fields. This means that the expanded output can't be submitted as input to `save`.
    87  		options.Ui.JsonOutput(app)
    88  	} else {
    89  		// NOTE: app GET wraps the actual app attributes in an 'attributes' field.
    90  		options.Ui.JsonOutput(app["attributes"])
    91  	}
    92  
    93  	return nil
    94  }