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package builder
import (
"strings"
"github.com/moby/buildkit/solver/errdefs"
"github.com/moby/buildkit/util/grpcerrors"
"github.com/moby/buildkit/util/stack"
"google.golang.org/grpc/codes"
)
var enabledCaps = map[string]struct{}{
"moby.buildkit.frontend.inputs": {},
"moby.buildkit.frontend.subrequests": {},
"moby.buildkit.frontend.contexts": {},
}
func validateCaps(req string) (forward bool, err error) {
if req == "" {
return
}
caps := strings.Split(req, ",")
for _, c := range caps {
parts := strings.SplitN(c, "+", 2)
if _, ok := enabledCaps[parts[0]]; !ok {
err = stack.Enable(grpcerrors.WrapCode(errdefs.NewUnsupportedFrontendCapError(parts[0]), codes.Unimplemented))
if strings.Contains(c, "+forward") {
forward = true
} else {
return false, err
}
}
}
return
}
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