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Chris Masone
0ba565fed6
The walk package contains walk.Some() and walk.All() which let you walk the Chunk graph starting at a given Ref. I also added GetReachabilitySetDiff(), which will determine which refs in a given ChunkSource can be reached from one given ref, but not the other. Towards issue #82
22 lines
526 B
Go
22 lines
526 B
Go
package walk
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import (
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"github.com/attic-labs/noms/chunks"
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"github.com/attic-labs/noms/ref"
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)
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// GetReachabilitySetDiff returns the refs of the chunks reachable from 'big' that cannot be reached from 'small'
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func GetReachabilitySetDiff(small, big ref.Ref, cs chunks.ChunkSource) (refs []ref.Ref) {
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smallRefs := map[ref.Ref]bool{}
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All(small, cs, func(r ref.Ref) {
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smallRefs[r] = true
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})
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Some(big, cs, func(r ref.Ref) (skip bool) {
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if skip = smallRefs[r]; !skip {
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refs = append(refs, r)
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}
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return
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})
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return
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}
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