archive: use 1970-01-01 as the whiteout timestamp

The whiteout timestamps are no longer set to the source date epoch.
The source date epoch still applies to non-whiteout files.

Discussion happened in moby/buildkit PR 3560.

Signed-off-by: Akihiro Suda <akihiro.suda.cz@hco.ntt.co.jp>
This commit is contained in:
Akihiro Suda
2023-06-30 11:26:53 +09:00
parent a542a57b2e
commit 5dedb6d0d2
5 changed files with 22 additions and 19 deletions

View File

@@ -172,8 +172,11 @@ type DiffRequest struct {
// Labels are the labels to apply to the generated content
// on content store commit.
Labels map[string]string `protobuf:"bytes,5,rep,name=labels,proto3" json:"labels,omitempty" protobuf_key:"bytes,1,opt,name=key,proto3" protobuf_val:"bytes,2,opt,name=value,proto3"`
// SourceDateEpoch specifies the timestamp used for whiteouts to provide control for reproducibility.
// SourceDateEpoch specifies the timestamp used to provide control for reproducibility.
// See also https://reproducible-builds.org/docs/source-date-epoch/ .
//
// Since containerd v2.0, the whiteout timestamps are set to zero (1970-01-01),
// not to the source date epoch.
SourceDateEpoch *timestamppb.Timestamp `protobuf:"bytes,6,opt,name=source_date_epoch,json=sourceDateEpoch,proto3" json:"source_date_epoch,omitempty"`
}

View File

@@ -74,8 +74,11 @@ message DiffRequest {
// on content store commit.
map<string, string> labels = 5;
// SourceDateEpoch specifies the timestamp used for whiteouts to provide control for reproducibility.
// SourceDateEpoch specifies the timestamp used to provide control for reproducibility.
// See also https://reproducible-builds.org/docs/source-date-epoch/ .
//
// Since containerd v2.0, the whiteout timestamps are set to zero (1970-01-01),
// not to the source date epoch.
google.protobuf.Timestamp source_date_epoch = 6;
}