vendor: add buildkit

Signed-off-by: Tonis Tiigi <tonistiigi@gmail.com>

vendor/github.com/moby/buildkit/client/diskusage.go

@@ -0,0 +1,84 @@
+package client
+
+import (
+	"context"
+	"sort"
+	"time"
+
+	controlapi "github.com/moby/buildkit/api/services/control"
+	"github.com/pkg/errors"
+)
+
+type UsageInfo struct {
+	ID      string
+	Mutable bool
+	InUse   bool
+	Size    int64
+
+	CreatedAt   time.Time
+	LastUsedAt  *time.Time
+	UsageCount  int
+	Parent      string
+	Description string
+	RecordType  UsageRecordType
+	Shared      bool
+}
+
+func (c *Client) DiskUsage(ctx context.Context, opts ...DiskUsageOption) ([]*UsageInfo, error) {
+	info := &DiskUsageInfo{}
+	for _, o := range opts {
+		o.SetDiskUsageOption(info)
+	}
+
+	req := &controlapi.DiskUsageRequest{Filter: info.Filter}
+	resp, err := c.controlClient().DiskUsage(ctx, req)
+	if err != nil {
+		return nil, errors.Wrap(err, "failed to call diskusage")
+	}
+
+	var du []*UsageInfo
+
+	for _, d := range resp.Record {
+		du = append(du, &UsageInfo{
+			ID:          d.ID,
+			Mutable:     d.Mutable,
+			InUse:       d.InUse,
+			Size:        d.Size_,
+			Parent:      d.Parent,
+			CreatedAt:   d.CreatedAt,
+			Description: d.Description,
+			UsageCount:  int(d.UsageCount),
+			LastUsedAt:  d.LastUsedAt,
+			RecordType:  UsageRecordType(d.RecordType),
+			Shared:      d.Shared,
+		})
+	}
+
+	sort.Slice(du, func(i, j int) bool {
+		if du[i].Size == du[j].Size {
+			return du[i].ID > du[j].ID
+		}
+		return du[i].Size > du[j].Size
+	})
+
+	return du, nil
+}
+
+type DiskUsageOption interface {
+	SetDiskUsageOption(*DiskUsageInfo)
+}
+
+type DiskUsageInfo struct {
+	Filter []string
+}
+
+type UsageRecordType string
+
+const (
+	UsageRecordTypeInternal    UsageRecordType = "internal"
+	UsageRecordTypeFrontend    UsageRecordType = "frontend"
+	UsageRecordTypeLocalSource UsageRecordType = "source.local"
+	UsageRecordTypeGitCheckout UsageRecordType = "source.git.checkout"
+	UsageRecordTypeCacheMount  UsageRecordType = "exec.cachemount"
+	UsageRecordTypeRegular     UsageRecordType = "regular"
+)