70 lines
1.8 KiB
Go
70 lines
1.8 KiB
Go
/*
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Copyright 2019 Google LLC
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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 cache
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import "errors"
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// IsAlreadyCached returns true if the supplied error is of the type AlreadyCachedErr
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// otherwise it returns false.
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func IsAlreadyCached(err error) bool {
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var e AlreadyCachedErr
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return errors.As(err, &e)
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}
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// AlreadyCachedErr is returned when the Docker image requested for caching is already
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// present in the cache.
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type AlreadyCachedErr struct {
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msg string
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}
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func (a AlreadyCachedErr) Error() string {
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return a.msg
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}
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// IsNotFound returns true if the supplied error is of the type NotFoundErr
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// otherwise it returns false.
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func IsNotFound(err error) bool {
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var e NotFoundErr
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return errors.As(err, &e)
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}
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// NotFoundErr is returned when the requested Docker image is not present in the cache.
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type NotFoundErr struct {
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msg string
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}
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func (e NotFoundErr) Error() string {
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return e.msg
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}
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// IsExpired returns true if the supplied error is of the type ExpiredErr
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// otherwise it returns false.
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func IsExpired(err error) bool {
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var e ExpiredErr
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return errors.As(err, &e)
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}
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// ExpiredErr is returned when the requested Docker image is present in the cache, but is
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// expired according to the supplied TTL.
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type ExpiredErr struct {
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msg string
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}
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func (e ExpiredErr) Error() string {
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return e.msg
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}
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