vendor: update buildkit with typed errors support

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

vendor/github.com/moby/buildkit/solver/errdefs/source.go

@@ -0,0 +1,128 @@
+package errdefs
+
+import (
+	"fmt"
+	"io"
+	"strings"
+
+	pb "github.com/moby/buildkit/solver/pb"
+	"github.com/moby/buildkit/util/grpcerrors"
+	"github.com/pkg/errors"
+)
+
+func WithSource(err error, src Source) error {
+	if err == nil {
+		return nil
+	}
+	return &ErrorSource{Source: src, error: err}
+}
+
+type ErrorSource struct {
+	Source
+	error
+}
+
+func (e *ErrorSource) Unwrap() error {
+	return e.error
+}
+
+func (e *ErrorSource) ToProto() grpcerrors.TypedErrorProto {
+	return &e.Source
+}
+
+func Sources(err error) []*Source {
+	var out []*Source
+	var es *ErrorSource
+	if errors.As(err, &es) {
+		out = Sources(es.Unwrap())
+		out = append(out, &es.Source)
+	}
+	return out
+}
+
+func (s *Source) WrapError(err error) error {
+	return &ErrorSource{error: err, Source: *s}
+}
+
+func (s *Source) Print(w io.Writer) error {
+	si := s.Info
+	if si == nil {
+		return nil
+	}
+	lines := strings.Split(string(si.Data), "\n")
+
+	start, end, ok := getStartEndLine(s.Ranges)
+	if !ok {
+		return nil
+	}
+	if start > len(lines) || start < 1 {
+		return nil
+	}
+	if end > len(lines) {
+		end = len(lines)
+	}
+
+	pad := 2
+	if end == start {
+		pad = 4
+	}
+	var p int
+
+	prepadStart := start
+	for {
+		if p >= pad {
+			break
+		}
+		if start > 1 {
+			start--
+			p++
+		}
+		if end != len(lines) {
+			end++
+			p++
+		}
+		p++
+	}
+
+	fmt.Fprintf(w, "%s:%d\n--------------------\n", si.Filename, prepadStart)
+	for i := start; i <= end; i++ {
+		pfx := "   "
+		if containsLine(s.Ranges, i) {
+			pfx = ">>>"
+		}
+		fmt.Fprintf(w, " %3d | %s %s\n", i, pfx, lines[i-1])
+	}
+	fmt.Fprintf(w, "--------------------\n")
+	return nil
+}
+
+func containsLine(rr []*pb.Range, l int) bool {
+	for _, r := range rr {
+		e := r.End.Line
+		if e < r.Start.Line {
+			e = r.Start.Line
+		}
+		if r.Start.Line <= int32(l) && e >= int32(l) {
+			return true
+		}
+	}
+	return false
+}
+
+func getStartEndLine(rr []*pb.Range) (start int, end int, ok bool) {
+	first := true
+	for _, r := range rr {
+		e := r.End.Line
+		if e < r.Start.Line {
+			e = r.Start.Line
+		}
+		if first || int(r.Start.Line) < start {
+			start = int(r.Start.Line)
+		}
+		if int(e) > end {
+			end = int(e)
+		}
+		first = false
+	}
+	return start, end, !first
+}