github.com/vmware/govmomi@v0.51.0/cli/namespace/service/version/ls.go (about)

     1  // © Broadcom. All Rights Reserved.
     2  // The term “Broadcom” refers to Broadcom Inc. and/or its subsidiaries.
     3  // SPDX-License-Identifier: Apache-2.0
     4  
     5  package version
     6  
     7  import (
     8  	"context"
     9  	"encoding/json"
    10  	"flag"
    11  	"fmt"
    12  	"io"
    13  	"os"
    14  	"text/tabwriter"
    15  
    16  	"github.com/vmware/govmomi/cli"
    17  	"github.com/vmware/govmomi/cli/flags"
    18  	"github.com/vmware/govmomi/vapi/namespace"
    19  )
    20  
    21  type ls struct {
    22  	*flags.ClientFlag
    23  	*flags.OutputFlag
    24  
    25  	long bool
    26  }
    27  
    28  func init() {
    29  	cli.Register("namespace.service.version.ls", &ls{})
    30  }
    31  
    32  func (cmd *ls) Register(ctx context.Context, f *flag.FlagSet) {
    33  	cmd.ClientFlag, ctx = flags.NewClientFlag(ctx)
    34  	cmd.OutputFlag, ctx = flags.NewOutputFlag(ctx)
    35  	cmd.ClientFlag.Register(ctx, f)
    36  	cmd.OutputFlag.Register(ctx, f)
    37  
    38  	f.BoolVar(&cmd.long, "l", false, "Long listing format")
    39  }
    40  
    41  func (cmd *ls) Process(ctx context.Context) error {
    42  	if err := cmd.ClientFlag.Process(ctx); err != nil {
    43  		return err
    44  	}
    45  	return cmd.OutputFlag.Process(ctx)
    46  }
    47  
    48  func (cmd *ls) Description() string {
    49  	return `List all registered versions for a given vSphere Supervisor Service.
    50  
    51  Examples:
    52    govc namespace.service.version.ls my-service
    53    govc namespace.service.version.ls -l my-service
    54    govc namespace.service.version.ls -json my-service | jq .`
    55  }
    56  
    57  func (cmd *ls) Usage() string {
    58  	return "NAME"
    59  }
    60  
    61  type lsWriter struct {
    62  	cmd      *ls
    63  	service  string
    64  	Versions []namespace.SupervisorServiceVersionSummary `json:"versions"`
    65  }
    66  
    67  func (r *lsWriter) Write(w io.Writer) error {
    68  	tw := tabwriter.NewWriter(os.Stdout, 2, 0, 2, ' ', 0)
    69  	fmt.Fprintf(tw, "%s:\n", r.service)
    70  	for _, svc := range r.Versions {
    71  		fmt.Fprintf(tw, "%s", svc.Version)
    72  		if r.cmd.long {
    73  			fmt.Fprintf(tw, "\t%s", svc.Name)
    74  			fmt.Fprintf(tw, "\t%s", svc.State)
    75  			fmt.Fprintf(tw, "\t%s", svc.Description)
    76  		}
    77  		fmt.Fprintf(tw, "\n")
    78  	}
    79  	return tw.Flush()
    80  }
    81  
    82  func (r *lsWriter) MarshalJSON() ([]byte, error) {
    83  	return json.Marshal(r.Versions)
    84  }
    85  
    86  func (r *lsWriter) Dump() any {
    87  	return r.Versions
    88  }
    89  
    90  func (cmd *ls) Run(ctx context.Context, f *flag.FlagSet) error {
    91  	service := f.Arg(0)
    92  	if len(service) == 0 {
    93  		return flag.ErrHelp
    94  	}
    95  	c, err := cmd.RestClient()
    96  	if err != nil {
    97  		return err
    98  	}
    99  
   100  	m := namespace.NewManager(c)
   101  	versions, err := m.ListSupervisorServiceVersions(ctx, service)
   102  	if err != nil {
   103  		return err
   104  	}
   105  
   106  	return cmd.WriteResult(&lsWriter{cmd, service, versions})
   107  }