diff options
| author | Filip Navara <filip.navara@gmail.com> | 2019-05-03 11:52:53 +0200 |
|---|---|---|
| committer | Filip Navara <filip.navara@gmail.com> | 2019-05-03 11:52:53 +0200 |
| commit | a661bca784d305e9df581302b725dc20fad8b995 (patch) | |
| tree | c0547dc3ac78c16549c7ead0f2ea49c7d7f889d2 /plumbing/object/commitgraph/commitnode_object.go | |
| parent | 79262fc996a067e062796754748d12de349aa5aa (diff) | |
| download | go-git-a661bca784d305e9df581302b725dc20fad8b995.tar.gz | |
Move CommitNode/CommitNodeIndex into separate object/commitgraph package
Signed-off-by: Filip Navara <filip.navara@gmail.com>
Diffstat (limited to 'plumbing/object/commitgraph/commitnode_object.go')
| -rw-r--r-- | plumbing/object/commitgraph/commitnode_object.go | 90 |
1 files changed, 90 insertions, 0 deletions
diff --git a/plumbing/object/commitgraph/commitnode_object.go b/plumbing/object/commitgraph/commitnode_object.go new file mode 100644 index 0000000..2779a54 --- /dev/null +++ b/plumbing/object/commitgraph/commitnode_object.go @@ -0,0 +1,90 @@ +package commitgraph
+
+import (
+ "math"
+ "time"
+
+ "gopkg.in/src-d/go-git.v4/plumbing"
+ "gopkg.in/src-d/go-git.v4/plumbing/object"
+ "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 *object.Commit
+}
+
+// NewObjectCommitNodeIndex returns CommitNodeIndex implementation that uses
+// only object storage to load the nodes
+func NewObjectCommitNodeIndex(s storer.EncodedObjectStorer) CommitNodeIndex {
+ return &objectCommitNodeIndex{s}
+}
+
+func (oci *objectCommitNodeIndex) Get(hash plumbing.Hash) (CommitNode, error) {
+ commit, err := object.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() (*object.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, object.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) Generation() uint64 {
+ // Commit nodes representing objects outside of the commit graph can never
+ // be reached by objects from the commit-graph thus we return the highest
+ // possible value.
+ return math.MaxUint64
+}
+
+func (c *objectCommitNode) Commit() (*object.Commit, error) {
+ return c.commit, nil
+}
|