38 lines
942 B
Go
38 lines
942 B
Go
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package object
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import (
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"bytes"
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"context"
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"gopkg.in/src-d/go-git.v4/utils/merkletrie"
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"gopkg.in/src-d/go-git.v4/utils/merkletrie/noder"
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)
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// DiffTree compares the content and mode of the blobs found via two
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// tree objects.
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func DiffTree(a, b *Tree) (Changes, error) {
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return DiffTreeContext(context.Background(), a, b)
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}
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// DiffTree compares the content and mode of the blobs found via two
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// tree objects. Provided context must be non-nil.
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// An error will be return if context expires
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func DiffTreeContext(ctx context.Context, a, b *Tree) (Changes, error) {
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from := NewTreeRootNode(a)
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to := NewTreeRootNode(b)
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hashEqual := func(a, b noder.Hasher) bool {
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return bytes.Equal(a.Hash(), b.Hash())
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}
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merkletrieChanges, err := merkletrie.DiffTreeContext(ctx, from, to, hashEqual)
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if err != nil {
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if err == merkletrie.ErrCanceled {
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return nil, ErrCanceled
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}
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return nil, err
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}
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return newChanges(merkletrieChanges)
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}
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