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|
package commands
import (
"context"
"fmt"
"io"
"os"
"strings"
"text/tabwriter"
"time"
"github.com/docker/buildx/builder"
"github.com/docker/buildx/util/cobrautil/completion"
"github.com/docker/cli/cli"
"github.com/docker/cli/cli/command"
"github.com/docker/cli/opts"
"github.com/docker/go-units"
"github.com/moby/buildkit/client"
"github.com/spf13/cobra"
"golang.org/x/sync/errgroup"
)
type duOptions struct {
builder string
filter opts.FilterOpt
verbose bool
}
func runDiskUsage(ctx context.Context, dockerCli command.Cli, opts duOptions) error {
pi, err := toBuildkitPruneInfo(opts.filter.Value())
if err != nil {
return err
}
b, err := builder.New(dockerCli, builder.WithName(opts.builder))
if err != nil {
return err
}
nodes, err := b.LoadNodes(ctx)
if err != nil {
return err
}
for _, node := range nodes {
if node.Err != nil {
return node.Err
}
}
out := make([][]*client.UsageInfo, len(nodes))
eg, ctx := errgroup.WithContext(ctx)
for i, node := range nodes {
func(i int, node builder.Node) {
eg.Go(func() error {
if node.Driver != nil {
c, err := node.Driver.Client(ctx)
if err != nil {
return err
}
du, err := c.DiskUsage(ctx, client.WithFilter(pi.Filter))
if err != nil {
return err
}
out[i] = du
return nil
}
return nil
})
}(i, node)
}
if err := eg.Wait(); err != nil {
return err
}
tw := tabwriter.NewWriter(os.Stdout, 1, 8, 1, '\t', 0)
first := true
for _, du := range out {
if du == nil {
continue
}
if opts.verbose {
printVerbose(tw, du)
} else {
if first {
printTableHeader(tw)
first = false
}
for _, di := range du {
printTableRow(tw, di)
}
tw.Flush()
}
}
if opts.filter.Value().Len() == 0 {
printSummary(tw, out)
}
tw.Flush()
return nil
}
func duCmd(dockerCli command.Cli, rootOpts *rootOptions) *cobra.Command {
options := duOptions{filter: opts.NewFilterOpt()}
cmd := &cobra.Command{
Use: "du",
Short: "Disk usage",
Args: cli.NoArgs,
RunE: func(cmd *cobra.Command, args []string) error {
options.builder = rootOpts.builder
return runDiskUsage(cmd.Context(), dockerCli, options)
},
ValidArgsFunction: completion.Disable,
}
flags := cmd.Flags()
flags.Var(&options.filter, "filter", "Provide filter values")
flags.BoolVar(&options.verbose, "verbose", false, "Provide a more verbose output")
return cmd
}
func printKV(w io.Writer, k string, v interface{}) {
fmt.Fprintf(w, "%s:\t%v\n", k, v)
}
func printVerbose(tw *tabwriter.Writer, du []*client.UsageInfo) {
for _, di := range du {
printKV(tw, "ID", di.ID)
if len(di.Parents) != 0 {
printKV(tw, "Parent", strings.Join(di.Parents, ","))
}
printKV(tw, "Created at", di.CreatedAt)
printKV(tw, "Mutable", di.Mutable)
printKV(tw, "Reclaimable", !di.InUse)
printKV(tw, "Shared", di.Shared)
printKV(tw, "Size", units.HumanSize(float64(di.Size)))
if di.Description != "" {
printKV(tw, "Description", di.Description)
}
printKV(tw, "Usage count", di.UsageCount)
if di.LastUsedAt != nil {
printKV(tw, "Last used", units.HumanDuration(time.Since(*di.LastUsedAt))+" ago")
}
if di.RecordType != "" {
printKV(tw, "Type", di.RecordType)
}
fmt.Fprintf(tw, "\n")
}
tw.Flush()
}
func printTableHeader(tw *tabwriter.Writer) {
fmt.Fprintln(tw, "ID\tRECLAIMABLE\tSIZE\tLAST ACCESSED")
}
func printTableRow(tw *tabwriter.Writer, di *client.UsageInfo) {
id := di.ID
if di.Mutable {
id += "*"
}
size := units.HumanSize(float64(di.Size))
if di.Shared {
size += "*"
}
lastAccessed := ""
if di.LastUsedAt != nil {
lastAccessed = units.HumanDuration(time.Since(*di.LastUsedAt)) + " ago"
}
fmt.Fprintf(tw, "%-40s\t%-5v\t%-10s\t%s\n", id, !di.InUse, size, lastAccessed)
}
func printSummary(tw *tabwriter.Writer, dus [][]*client.UsageInfo) {
total := int64(0)
reclaimable := int64(0)
shared := int64(0)
for _, du := range dus {
for _, di := range du {
if di.Size > 0 {
total += di.Size
if !di.InUse {
reclaimable += di.Size
}
}
if di.Shared {
shared += di.Size
}
}
}
if shared > 0 {
fmt.Fprintf(tw, "Shared:\t%s\n", units.HumanSize(float64(shared)))
fmt.Fprintf(tw, "Private:\t%s\n", units.HumanSize(float64(total-shared)))
}
fmt.Fprintf(tw, "Reclaimable:\t%s\n", units.HumanSize(float64(reclaimable)))
fmt.Fprintf(tw, "Total:\t%s\n", units.HumanSize(float64(total)))
tw.Flush()
}
|
