go.chromium.org/luci@v0.0.0-20240309015107-7cdc2e660f33/cv/internal/common/protoutil.go (about)

     1  // Copyright 2021 The LUCI Authors.
     2  //
     3  // Licensed under the Apache License, Version 2.0 (the "License");
     4  // you may not use this file except in compliance with the License.
     5  // You may obtain a copy of the License at
     6  //
     7  //      http://www.apache.org/licenses/LICENSE-2.0
     8  //
     9  // Unless required by applicable law or agreed to in writing, software
    10  // distributed under the License is distributed on an "AS IS" BASIS,
    11  // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
    12  // See the License for the specific language governing permissions and
    13  // limitations under the License.
    14  
    15  package common
    16  
    17  import (
    18  	"time"
    19  
    20  	"google.golang.org/protobuf/types/known/timestamppb"
    21  )
    22  
    23  // Time2PBNillable is like timestamppb.New() but returns nil on zero time.
    24  func Time2PBNillable(t time.Time) *timestamppb.Timestamp {
    25  	if t.IsZero() {
    26  		return nil
    27  	}
    28  	return timestamppb.New(t)
    29  }
    30  
    31  // PB2TimeNillable is the opposite of Time2PBNillable.
    32  //
    33  // ie same as pb.AsTime() but returns zero time if pb is nil.
    34  func PB2TimeNillable(pb *timestamppb.Timestamp) time.Time {
    35  	if pb == nil {
    36  		return time.Time{}
    37  	}
    38  	return pb.AsTime()
    39  }