github.com/vmware/govmomi@v0.51.0/cli/vm/guest/df.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 guest
     6  
     7  import (
     8  	"context"
     9  	"flag"
    10  	"fmt"
    11  	"io"
    12  	"text/tabwriter"
    13  
    14  	"github.com/vmware/govmomi/cli"
    15  	"github.com/vmware/govmomi/cli/flags"
    16  	"github.com/vmware/govmomi/units"
    17  	"github.com/vmware/govmomi/vim25/mo"
    18  	"github.com/vmware/govmomi/vim25/types"
    19  )
    20  
    21  type df struct {
    22  	*flags.VirtualMachineFlag
    23  }
    24  
    25  func init() {
    26  	cli.Register("guest.df", &df{})
    27  }
    28  
    29  func (cmd *df) Register(ctx context.Context, f *flag.FlagSet) {
    30  	cmd.VirtualMachineFlag, ctx = flags.NewVirtualMachineFlag(ctx)
    31  	cmd.VirtualMachineFlag.Register(ctx, f)
    32  }
    33  
    34  func (cmd *df) Description() string {
    35  	return `Report file system disk space usage.
    36  
    37  Examples:
    38    govc guest.df -vm $name`
    39  }
    40  
    41  type dfResult []types.GuestDiskInfo
    42  
    43  func (r dfResult) Write(w io.Writer) error {
    44  	tw := tabwriter.NewWriter(w, 2, 0, 2, ' ', 0)
    45  	_, _ = fmt.Fprintf(tw, "%s\t%s\t%s\t%s\t%s\n", "Filesystem", "Size", "Used", "Avail", "Use%")
    46  	for _, disk := range r {
    47  		used := disk.Capacity - disk.FreeSpace
    48  		use := 100.0 * float32(used) / float32(disk.Capacity)
    49  		_, _ = fmt.Fprintf(tw, "%s\t%s\t%s\t%s\t%.0f%%\n", disk.DiskPath,
    50  			units.ByteSize(disk.Capacity), units.ByteSize(used), units.ByteSize(disk.FreeSpace), use)
    51  	}
    52  	return tw.Flush()
    53  }
    54  
    55  func (cmd *df) Run(ctx context.Context, f *flag.FlagSet) error {
    56  	obj, err := cmd.VirtualMachine()
    57  	if err != nil {
    58  		return err
    59  	}
    60  
    61  	var vm mo.VirtualMachine
    62  	err = obj.Properties(ctx, obj.Reference(), []string{"guest.disk"}, &vm)
    63  	if err != nil {
    64  		return err
    65  	}
    66  
    67  	return cmd.WriteResult(dfResult(vm.Guest.Disk))
    68  }