67 lines
1.4 KiB
Go
67 lines
1.4 KiB
Go
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package solver
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import (
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"sync"
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digest "github.com/opencontainers/go-digest"
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)
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// NewCacheKey creates a new cache key for a specific output index
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func NewCacheKey(dgst digest.Digest, output Index) *CacheKey {
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return &CacheKey{
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ID: rootKey(dgst, output).String(),
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digest: dgst,
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output: output,
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ids: map[*cacheManager]string{},
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}
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}
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// CacheKeyWithSelector combines a cache key with an optional selector digest.
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// Used to limit the matches for dependency cache key.
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type CacheKeyWithSelector struct {
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Selector digest.Digest
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CacheKey ExportableCacheKey
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}
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type CacheKey struct {
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mu sync.RWMutex
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ID string
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deps [][]CacheKeyWithSelector // only [][]*inMemoryCacheKey
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digest digest.Digest
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output Index
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ids map[*cacheManager]string
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indexIDs []string
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}
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func (ck *CacheKey) Deps() [][]CacheKeyWithSelector {
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ck.mu.RLock()
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defer ck.mu.RUnlock()
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deps := make([][]CacheKeyWithSelector, len(ck.deps))
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for i := range ck.deps {
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deps[i] = append([]CacheKeyWithSelector(nil), ck.deps[i]...)
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}
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return deps
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}
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func (ck *CacheKey) Digest() digest.Digest {
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return ck.digest
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}
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func (ck *CacheKey) Output() Index {
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return ck.output
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}
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func (ck *CacheKey) clone() *CacheKey {
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nk := &CacheKey{
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ID: ck.ID,
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digest: ck.digest,
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output: ck.output,
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ids: map[*cacheManager]string{},
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}
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for cm, id := range ck.ids {
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nk.ids[cm] = id
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}
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return nk
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}
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