github.com/xeptore/docker-cli@v20.10.14+incompatible/cli/command/system/df.go (about)

     1  package system
     2  
     3  import (
     4  	"context"
     5  
     6  	"github.com/docker/cli/cli"
     7  	"github.com/docker/cli/cli/command"
     8  	"github.com/docker/cli/cli/command/formatter"
     9  	"github.com/spf13/cobra"
    10  )
    11  
    12  type diskUsageOptions struct {
    13  	verbose bool
    14  	format  string
    15  }
    16  
    17  // newDiskUsageCommand creates a new cobra.Command for `docker df`
    18  func newDiskUsageCommand(dockerCli command.Cli) *cobra.Command {
    19  	var opts diskUsageOptions
    20  
    21  	cmd := &cobra.Command{
    22  		Use:   "df [OPTIONS]",
    23  		Short: "Show docker disk usage",
    24  		Args:  cli.NoArgs,
    25  		RunE: func(cmd *cobra.Command, args []string) error {
    26  			return runDiskUsage(dockerCli, opts)
    27  		},
    28  		Annotations: map[string]string{"version": "1.25"},
    29  	}
    30  
    31  	flags := cmd.Flags()
    32  
    33  	flags.BoolVarP(&opts.verbose, "verbose", "v", false, "Show detailed information on space usage")
    34  	flags.StringVar(&opts.format, "format", "", "Pretty-print images using a Go template")
    35  
    36  	return cmd
    37  }
    38  
    39  func runDiskUsage(dockerCli command.Cli, opts diskUsageOptions) error {
    40  	du, err := dockerCli.Client().DiskUsage(context.Background())
    41  	if err != nil {
    42  		return err
    43  	}
    44  
    45  	format := opts.format
    46  	if len(format) == 0 {
    47  		format = formatter.TableFormatKey
    48  	}
    49  
    50  	var bsz int64
    51  	for _, bc := range du.BuildCache {
    52  		if !bc.Shared {
    53  			bsz += bc.Size
    54  		}
    55  	}
    56  
    57  	duCtx := formatter.DiskUsageContext{
    58  		Context: formatter.Context{
    59  			Output: dockerCli.Out(),
    60  			Format: formatter.NewDiskUsageFormat(format, opts.verbose),
    61  		},
    62  		LayersSize:  du.LayersSize,
    63  		BuilderSize: bsz,
    64  		BuildCache:  du.BuildCache,
    65  		Images:      du.Images,
    66  		Containers:  du.Containers,
    67  		Volumes:     du.Volumes,
    68  		Verbose:     opts.verbose,
    69  	}
    70  
    71  	return duCtx.Write()
    72  }