vendor: update buildkit to master@31c870e82a48

Signed-off-by: Justin Chadwell <me@jedevc.com>

vendor/github.com/moby/buildkit/cmd/buildkitd/config/gcpolicy.go

@@ -1,21 +1,86 @@
 package config
 
+import (
+	"encoding"
+	"strconv"
+	"strings"
+	"time"
+
+	"github.com/docker/go-units"
+	"github.com/pkg/errors"
+)
+
+type Duration struct {
+	time.Duration
+}
+
+func (d *Duration) UnmarshalText(textb []byte) error {
+	text := stripQuotes(string(textb))
+	if len(text) == 0 {
+		return nil
+	}
+
+	if duration, err := time.ParseDuration(text); err == nil {
+		d.Duration = duration
+		return nil
+	}
+
+	if i, err := strconv.ParseInt(text, 10, 64); err == nil {
+		d.Duration = time.Duration(i) * time.Second
+		return nil
+	}
+
+	return errors.Errorf("invalid duration %s", text)
+}
+
+var _ encoding.TextUnmarshaler = &Duration{}
+
+type DiskSpace struct {
+	Bytes      int64
+	Percentage int64
+}
+
+var _ encoding.TextUnmarshaler = &DiskSpace{}
+
+func (d *DiskSpace) UnmarshalText(textb []byte) error {
+	text := stripQuotes(string(textb))
+	if len(text) == 0 {
+		return nil
+	}
+
+	if text2 := strings.TrimSuffix(text, "%"); len(text2) < len(text) {
+		i, err := strconv.ParseInt(text2, 10, 64)
+		if err != nil {
+			return err
+		}
+		d.Percentage = i
+		return nil
+	}
+
+	if i, err := units.RAMInBytes(text); err == nil {
+		d.Bytes = i
+		return nil
+	}
+
+	return errors.Errorf("invalid disk space %s", text)
+}
+
 const defaultCap int64 = 2e9 // 2GB
 
-func DefaultGCPolicy(p string, keep int64) []GCPolicy {
-	if keep == 0 {
-		keep = DetectDefaultGCCap(p)
+func DefaultGCPolicy(keep DiskSpace) []GCPolicy {
+	if keep == (DiskSpace{}) {
+		keep = DetectDefaultGCCap()
 	}
 	return []GCPolicy{
 		// if build cache uses more than 512MB delete the most easily reproducible data after it has not been used for 2 days
 		{
 			Filters:      []string{"type==source.local,type==exec.cachemount,type==source.git.checkout"},
-			KeepDuration: 48 * 3600, // 48h
-			KeepBytes:    512 * 1e6, // 512MB
+			KeepDuration: Duration{Duration: time.Duration(48) * time.Hour}, // 48h
+			KeepBytes:    DiskSpace{Bytes: 512 * 1e6},                       // 512MB
 		},
 		// remove any data not used for 60 days
 		{
-			KeepDuration: 60 * 24 * 3600, // 60d
+			KeepDuration: Duration{Duration: time.Duration(60) * 24 * time.Hour}, // 60d
 			KeepBytes:    keep,
 		},
 		// keep the unshared build cache under cap
@@ -29,3 +94,13 @@ func DefaultGCPolicy(p string, keep int64) []GCPolicy {
 		},
 	}
 }
+
+func stripQuotes(s string) string {
+	if len(s) == 0 {
+		return s
+	}
+	if s[0] == '"' && s[len(s)-1] == '"' {
+		return s[1 : len(s)-1]
+	}
+	return s
+}