github.com/vmware/govmomi@v0.43.0/govc/vm/guest/df.go (about)

     1  /*
     2  Copyright (c) 2019 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 guest
    18  
    19  import (
    20  	"context"
    21  	"flag"
    22  	"fmt"
    23  	"io"
    24  	"text/tabwriter"
    25  
    26  	"github.com/vmware/govmomi/govc/cli"
    27  	"github.com/vmware/govmomi/govc/flags"
    28  	"github.com/vmware/govmomi/units"
    29  	"github.com/vmware/govmomi/vim25/mo"
    30  	"github.com/vmware/govmomi/vim25/types"
    31  )
    32  
    33  type df struct {
    34  	*flags.VirtualMachineFlag
    35  }
    36  
    37  func init() {
    38  	cli.Register("guest.df", &df{})
    39  }
    40  
    41  func (cmd *df) Register(ctx context.Context, f *flag.FlagSet) {
    42  	cmd.VirtualMachineFlag, ctx = flags.NewVirtualMachineFlag(ctx)
    43  	cmd.VirtualMachineFlag.Register(ctx, f)
    44  }
    45  
    46  func (cmd *df) Description() string {
    47  	return `Report file system disk space usage.
    48  
    49  Examples:
    50    govc guest.df -vm $name`
    51  }
    52  
    53  type dfResult []types.GuestDiskInfo
    54  
    55  func (r dfResult) Write(w io.Writer) error {
    56  	tw := tabwriter.NewWriter(w, 2, 0, 2, ' ', 0)
    57  	_, _ = fmt.Fprintf(tw, "%s\t%s\t%s\t%s\t%s\n", "Filesystem", "Size", "Used", "Avail", "Use%")
    58  	for _, disk := range r {
    59  		used := disk.Capacity - disk.FreeSpace
    60  		use := 100.0 * float32(used) / float32(disk.Capacity)
    61  		_, _ = fmt.Fprintf(tw, "%s\t%s\t%s\t%s\t%.0f%%\n", disk.DiskPath,
    62  			units.ByteSize(disk.Capacity), units.ByteSize(used), units.ByteSize(disk.FreeSpace), use)
    63  	}
    64  	return tw.Flush()
    65  }
    66  
    67  func (cmd *df) Run(ctx context.Context, f *flag.FlagSet) error {
    68  	obj, err := cmd.VirtualMachine()
    69  	if err != nil {
    70  		return err
    71  	}
    72  
    73  	var vm mo.VirtualMachine
    74  	err = obj.Properties(ctx, obj.Reference(), []string{"guest.disk"}, &vm)
    75  	if err != nil {
    76  		return err
    77  	}
    78  
    79  	return cmd.WriteResult(dfResult(vm.Guest.Disk))
    80  }