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package object
import (
"bytes"
"context"
"github.com/go-git/go-git/v5/utils/merkletrie"
"github.com/go-git/go-git/v5/utils/merkletrie/noder"
)
// DiffTree compares the content and mode of the blobs found via two
// tree objects.
func DiffTree(a, b *Tree) (Changes, error) {
return DiffTreeContext(context.Background(), a, b)
}
// DiffTree compares the content and mode of the blobs found via two
// tree objects. Provided context must be non-nil.
// An error will be return if context expires
func DiffTreeContext(ctx context.Context, a, b *Tree) (Changes, error) {
from := NewTreeRootNode(a)
to := NewTreeRootNode(b)
hashEqual := func(a, b noder.Hasher) bool {
return bytes.Equal(a.Hash(), b.Hash())
}
merkletrieChanges, err := merkletrie.DiffTreeContext(ctx, from, to, hashEqual)
if err != nil {
if err == merkletrie.ErrCanceled {
return nil, ErrCanceled
}
return nil, err
}
return newChanges(merkletrieChanges)
}
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