Urgh I made some wrong amends and I'm too tired to separate the commits out this time

ancestor: Split out of reachability
mergebase: Add merge base routines
internal/commitquery: Add commit query context engine thingy
internal/peel: Shared tag peeling
errors: Shared object query errors
internal/testgit: Add rooted repo helpers; remove raw path access
objectstore/memory: Add in-memory object store
objectid: Add Compare helper

1 files changed, 24 insertions, 0 deletions

diff --git a/objectstore/memory/store.go b/objectstore/memory/store.go
new file mode 100644
index 00000000..f7513094
--- /dev/null
+++ b/objectstore/memory/store.go
@@ -0,0 +1,24 @@
+package memory
+
+import (
+	"codeberg.org/lindenii/furgit/objectid"
+)
+
+// Store is one in-memory object store.
+type Store struct {
+	algo    objectid.Algorithm
+	objects map[objectid.ObjectID]storedObject
+}
+
+// New builds one empty in-memory store for one object format.
+func New(algo objectid.Algorithm) *Store {
+	return &Store{
+		algo:    algo,
+		objects: make(map[objectid.ObjectID]storedObject),
+	}
+}
+
+// Close closes the in-memory store.
+func (store *Store) Close() error {
+	return nil
+}