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package object
import (
"time"
"gopkg.in/src-d/go-git.v4/plumbing"
"gopkg.in/src-d/go-git.v4/plumbing/storer"
)
// objectCommitNode is a representation of Commit as presented in the GIT object format.
//
// objectCommitNode implements the CommitNode interface.
type objectCommitNode struct {
nodeIndex CommitNodeIndex
commit *Commit
}
func NewObjectCommitNodeIndex(s storer.EncodedObjectStorer) CommitNodeIndex {
return &objectCommitNodeIndex{s}
}
func (oci *objectCommitNodeIndex) Get(hash plumbing.Hash) (CommitNode, error) {
commit, err := GetCommit(oci.s, hash)
if err != nil {
return nil, err
}
return &objectCommitNode{
nodeIndex: oci,
commit: commit,
}, nil
}
// objectCommitNodeIndex is an index that can load CommitNode objects only from the
// object store.
//
// objectCommitNodeIndex implements the CommitNodeIndex interface
type objectCommitNodeIndex struct {
s storer.EncodedObjectStorer
}
func (c *objectCommitNode) CommitTime() time.Time {
return c.commit.Committer.When
}
func (c *objectCommitNode) ID() plumbing.Hash {
return c.commit.ID()
}
func (c *objectCommitNode) Tree() (*Tree, error) {
return c.commit.Tree()
}
func (c *objectCommitNode) NumParents() int {
return c.commit.NumParents()
}
func (c *objectCommitNode) ParentNodes() CommitNodeIter {
return newParentgraphCommitNodeIter(c)
}
func (c *objectCommitNode) ParentNode(i int) (CommitNode, error) {
if i < 0 || i >= len(c.commit.ParentHashes) {
return nil, ErrParentNotFound
}
// Note: It's necessary to go through CommitNodeIndex here to ensure
// that if the commit-graph file covers only part of the history we
// start using it when that part is reached.
return c.nodeIndex.Get(c.commit.ParentHashes[i])
}
func (c *objectCommitNode) ParentHashes() []plumbing.Hash {
return c.commit.ParentHashes
}
func (c *objectCommitNode) Commit() (*Commit, error) {
return c.commit, nil
}
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