github.com/vmware/govmomi@v0.37.1/govc/datastore/disk/shrink.go (about)

     1  /*
     2  Copyright (c) 2017 VMware, Inc. All Rights Reserved.
     3  
     4  Licensed under the Apache License, Version 2.0 (the "License");
     5  you may not use this file except in compliance with the License.
     6  You may obtain a copy of the License at
     7  
     8      http://www.apache.org/licenses/LICENSE-2.0
     9  
    10  Unless required by applicable law or agreed to in writing, software
    11  distributed under the License is distributed on an "AS IS" BASIS,
    12  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
    13  See the License for the specific language governing permissions and
    14  limitations under the License.
    15  */
    16  
    17  package disk
    18  
    19  import (
    20  	"context"
    21  	"flag"
    22  	"fmt"
    23  
    24  	"github.com/vmware/govmomi/govc/cli"
    25  	"github.com/vmware/govmomi/govc/flags"
    26  	"github.com/vmware/govmomi/object"
    27  )
    28  
    29  type shrink struct {
    30  	*flags.DatastoreFlag
    31  
    32  	copy *bool
    33  }
    34  
    35  func init() {
    36  	cli.Register("datastore.disk.shrink", &shrink{})
    37  }
    38  
    39  func (cmd *shrink) Register(ctx context.Context, f *flag.FlagSet) {
    40  	cmd.DatastoreFlag, ctx = flags.NewDatastoreFlag(ctx)
    41  	cmd.DatastoreFlag.Register(ctx, f)
    42  
    43  	f.Var(flags.NewOptionalBool(&cmd.copy), "copy", "Perform shrink in-place mode if false, copy-shrink mode otherwise")
    44  }
    45  
    46  func (cmd *shrink) Process(ctx context.Context) error {
    47  	return cmd.DatastoreFlag.Process(ctx)
    48  }
    49  
    50  func (cmd *shrink) Usage() string {
    51  	return "VMDK"
    52  }
    53  
    54  func (cmd *shrink) Description() string {
    55  	return `Shrink VMDK on DS.
    56  
    57  Examples:
    58    govc datastore.disk.shrink disks/disk1.vmdk`
    59  }
    60  
    61  func (cmd *shrink) Run(ctx context.Context, f *flag.FlagSet) error {
    62  	if f.NArg() == 0 {
    63  		return flag.ErrHelp
    64  	}
    65  
    66  	dc, err := cmd.Datacenter()
    67  	if err != nil {
    68  		return err
    69  	}
    70  
    71  	ds, err := cmd.Datastore()
    72  	if err != nil {
    73  		return err
    74  	}
    75  
    76  	m := object.NewVirtualDiskManager(ds.Client())
    77  	path := ds.Path(f.Arg(0))
    78  	task, err := m.ShrinkVirtualDisk(ctx, path, dc, cmd.copy)
    79  	if err != nil {
    80  		return err
    81  	}
    82  
    83  	logger := cmd.ProgressLogger(fmt.Sprintf("Shrinking %s...", path))
    84  	defer logger.Wait()
    85  
    86  	_, err = task.WaitForResult(ctx, logger)
    87  	return err
    88  }