mirror of https://github.com/docker/buildx.git
commands: add prune command
Signed-off-by: Tonis Tiigi <tonistiigi@gmail.com>
This commit is contained in:
Tonis Tiigi
parent
ed6be92de4
commit
66672b4052
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@ -0,0 +1,98 @@
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package commands
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import (
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"fmt"
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"io"
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"os"
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"text/tabwriter"
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"github.com/moby/buildkit/client"
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"github.com/tonistiigi/units"
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)
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func printKV(w io.Writer, k string, v interface{}) {
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fmt.Fprintf(w, "%s:\t%v\n", k, v)
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}
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func printVerbose(tw *tabwriter.Writer, du []*client.UsageInfo) {
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for _, di := range du {
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printKV(tw, "ID", di.ID)
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if di.Parent != "" {
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printKV(tw, "Parent", di.Parent)
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}
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printKV(tw, "Created at", di.CreatedAt)
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printKV(tw, "Mutable", di.Mutable)
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printKV(tw, "Reclaimable", !di.InUse)
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printKV(tw, "Shared", di.Shared)
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printKV(tw, "Size", fmt.Sprintf("%.2f", units.Bytes(di.Size)))
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if di.Description != "" {
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printKV(tw, "Description", di.Description)
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}
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printKV(tw, "Usage count", di.UsageCount)
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if di.LastUsedAt != nil {
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printKV(tw, "Last used", di.LastUsedAt)
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}
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if di.RecordType != "" {
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printKV(tw, "Type", di.RecordType)
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}
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fmt.Fprintf(tw, "\n")
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}
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tw.Flush()
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}
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func printTable(tw *tabwriter.Writer, du []*client.UsageInfo) {
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printTableHeader(tw)
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for _, di := range du {
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printTableRow(tw, di)
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}
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tw.Flush()
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}
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func printTableHeader(tw *tabwriter.Writer) {
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fmt.Fprintln(tw, "ID\tRECLAIMABLE\tSIZE\tLAST ACCESSED")
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}
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func printTableRow(tw *tabwriter.Writer, di *client.UsageInfo) {
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id := di.ID
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if di.Mutable {
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id += "*"
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}
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size := fmt.Sprintf("%.2f", units.Bytes(di.Size))
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if di.Shared {
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size += "*"
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}
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fmt.Fprintf(tw, "%-71s\t%-11v\t%s\t\n", id, !di.InUse, size)
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}
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func printSummary(tw *tabwriter.Writer, du []*client.UsageInfo) {
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total := int64(0)
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reclaimable := int64(0)
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shared := int64(0)
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for _, di := range du {
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if di.Size > 0 {
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total += di.Size
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if !di.InUse {
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reclaimable += di.Size
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}
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}
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if di.Shared {
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shared += di.Size
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}
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}
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tw = tabwriter.NewWriter(os.Stdout, 1, 8, 1, '\t', 0)
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if shared > 0 {
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fmt.Fprintf(tw, "Shared:\t%.2f\n", units.Bytes(shared))
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fmt.Fprintf(tw, "Private:\t%.2f\n", units.Bytes(total-shared))
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}
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fmt.Fprintf(tw, "Reclaimable:\t%.2f\n", units.Bytes(reclaimable))
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fmt.Fprintf(tw, "Total:\t%.2f\n", units.Bytes(total))
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tw.Flush()
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}
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@ -0,0 +1,196 @@
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package commands
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import (
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"fmt"
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"os"
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"strings"
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"text/tabwriter"
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"time"
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"github.com/docker/buildx/build"
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"github.com/docker/cli/cli"
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"github.com/docker/cli/cli/command"
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"github.com/docker/cli/opts"
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"github.com/docker/docker/api/types/filters"
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"github.com/moby/buildkit/client"
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"github.com/moby/buildkit/util/appcontext"
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"github.com/pkg/errors"
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"github.com/spf13/cobra"
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"github.com/tonistiigi/units"
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"golang.org/x/sync/errgroup"
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)
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type pruneOptions struct {
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all bool
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filter opts.FilterOpt
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keepStorage opts.MemBytes
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force bool
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verbose bool
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}
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const (
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normalWarning = `WARNING! This will remove all dangling build cache. Are you sure you want to continue?`
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allCacheWarning = `WARNING! This will remove all build cache. Are you sure you want to continue?`
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)
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func runPrune(dockerCli command.Cli, opts pruneOptions) error {
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ctx := appcontext.Context()
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pruneFilters := opts.filter.Value()
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pruneFilters = command.PruneFilters(dockerCli, pruneFilters)
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pi, err := toBuildkitPruneInfo(pruneFilters)
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if err != nil {
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return err
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}
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warning := normalWarning
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if opts.all {
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warning = allCacheWarning
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}
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if !opts.force && !command.PromptForConfirmation(dockerCli.In(), dockerCli.Out(), warning) {
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return nil
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}
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dis, err := getDefaultDrivers(ctx, dockerCli, "")
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if err != nil {
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return err
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}
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for _, di := range dis {
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if di.Err != nil {
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return err
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}
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}
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ch := make(chan client.UsageInfo)
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printed := make(chan struct{})
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tw := tabwriter.NewWriter(os.Stdout, 1, 8, 1, '\t', 0)
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first := true
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total := int64(0)
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go func() {
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defer close(printed)
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for du := range ch {
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total += du.Size
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if opts.verbose {
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printVerbose(tw, []*client.UsageInfo{&du})
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} else {
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if first {
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printTableHeader(tw)
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first = false
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}
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printTableRow(tw, &du)
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tw.Flush()
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}
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}
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}()
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eg, ctx := errgroup.WithContext(ctx)
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for _, di := range dis {
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func(di build.DriverInfo) {
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eg.Go(func() error {
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if di.Driver != nil {
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c, err := di.Driver.Client(ctx)
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if err != nil {
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return err
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}
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popts := []client.PruneOption{
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client.WithKeepOpt(pi.KeepDuration, opts.keepStorage.Value()),
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client.WithFilter(pi.Filter),
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}
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if opts.all {
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popts = append(popts, client.PruneAll)
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}
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return c.Prune(ctx, ch, popts...)
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}
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return nil
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})
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}(di)
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}
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if err := eg.Wait(); err != nil {
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return err
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}
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close(ch)
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<-printed
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tw = tabwriter.NewWriter(os.Stdout, 1, 8, 1, '\t', 0)
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fmt.Fprintf(tw, "Total:\t%.2f\n", units.Bytes(total))
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tw.Flush()
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return nil
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}
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func pruneCmd(dockerCli command.Cli) *cobra.Command {
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options := pruneOptions{filter: opts.NewFilterOpt()}
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cmd := &cobra.Command{
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Use: "prune",
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Short: "Remove build cache ",
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Args: cli.NoArgs,
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RunE: func(cmd *cobra.Command, args []string) error {
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return runPrune(dockerCli, options)
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},
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Annotations: map[string]string{"version": "1.00"},
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}
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flags := cmd.Flags()
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flags.BoolVarP(&options.all, "all", "a", false, "Remove all unused images, not just dangling ones")
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flags.Var(&options.filter, "filter", "Provide filter values (e.g. 'until=24h')")
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flags.Var(&options.keepStorage, "keep-storage", "Amount of disk space to keep for cache")
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flags.BoolVar(&options.verbose, "verbose", false, "Provide a more verbose output")
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flags.BoolVar(&options.force, "force", false, "Skip the warning messages")
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return cmd
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}
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func toBuildkitPruneInfo(f filters.Args) (*client.PruneInfo, error) {
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var until time.Duration
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untilValues := f.Get("until") // canonical
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unusedForValues := f.Get("unused-for") // deprecated synonym for "until" filter
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if len(untilValues) > 0 && len(unusedForValues) > 0 {
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return nil, errors.Errorf("conflicting filters %q and %q", "until", "unused-for")
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}
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filterKey := "until"
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if len(unusedForValues) > 0 {
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filterKey = "unused-for"
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}
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untilValues = append(untilValues, unusedForValues...)
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switch len(untilValues) {
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case 0:
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// nothing to do
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case 1:
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var err error
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until, err = time.ParseDuration(untilValues[0])
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if err != nil {
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return nil, errors.Wrapf(err, "%q filter expects a duration (e.g., '24h')", filterKey)
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}
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default:
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return nil, errors.Errorf("filters expect only one value")
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}
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bkFilter := make([]string, 0, f.Len())
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for _, field := range f.Keys() {
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values := f.Get(field)
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switch len(values) {
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case 0:
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bkFilter = append(bkFilter, field)
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case 1:
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if field == "id" {
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bkFilter = append(bkFilter, field+"~="+values[0])
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} else {
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bkFilter = append(bkFilter, field+"=="+values[0])
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}
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default:
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return nil, errors.Errorf("filters expect only one value")
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}
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}
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return &client.PruneInfo{
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KeepDuration: until,
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Filter: []string{strings.Join(bkFilter, ",")},
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}, nil
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}
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@ -35,6 +35,7 @@ func addCommands(cmd *cobra.Command, dockerCli command.Cli) {
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installCmd(dockerCli),
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uninstallCmd(dockerCli),
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versionCmd(dockerCli),
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pruneCmd(dockerCli),
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imagetoolscmd.RootCmd(dockerCli),
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)
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}
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