42 lines
1.1 KiB
Go
42 lines
1.1 KiB
Go
/*
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Copyright The containerd Authors.
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Licensed under the Apache License, Version 2.0 (the "License");
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you may not use this file except in compliance with the License.
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You may obtain a copy of the License at
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http://www.apache.org/licenses/LICENSE-2.0
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Unless required by applicable law or agreed to in writing, software
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distributed under the License is distributed on an "AS IS" BASIS,
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WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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See the License for the specific language governing permissions and
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limitations under the License.
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*/
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package epoch
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import (
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"context"
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"time"
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)
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type (
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epochKey struct{}
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)
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// WithSourceDateEpoch associates the context with the epoch.
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func WithSourceDateEpoch(ctx context.Context, tm *time.Time) context.Context {
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return context.WithValue(ctx, epochKey{}, tm)
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}
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// FromContext returns the epoch associated with the context.
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// FromContext does not fall back to read the SOURCE_DATE_EPOCH env var.
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func FromContext(ctx context.Context) *time.Time {
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v := ctx.Value(epochKey{})
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if v == nil {
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return nil
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}
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return v.(*time.Time)
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}
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