From 01d15bccf3b1dcc51516b1f64d50950b31d7f8fb Mon Sep 17 00:00:00 2001
From: Runxi Yu
Date: Fri, 6 Mar 2026 21:19:56 +0800
Subject: 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
---
 objectid/objectid.go | 7 +++++++
 1 file changed, 7 insertions(+)

(limited to 'objectid')

diff --git a/objectid/objectid.go b/objectid/objectid.go
index df56b2d8..1c169b29 100644
--- a/objectid/objectid.go
+++ b/objectid/objectid.go
@@ -4,6 +4,7 @@ package objectid
 import (
 	//#nosec G505
 
+	"bytes"
 	"encoding/hex"
 	"fmt"
 )
@@ -52,6 +53,12 @@ func (id *ObjectID) RawBytes() []byte {
 	return id.data[:size:size]
 }
 
+// Compare lexicographically compares two object IDs by their canonical byte
+// representation.
+func Compare(left, right ObjectID) int {
+	return bytes.Compare(left.RawBytes(), right.RawBytes())
+}
+
 // ParseHex parses an object ID from hex for the specified algorithm.
 func ParseHex(algo Algorithm, s string) (ObjectID, error) {
 	var id ObjectID
-- 
cgit v1.3.1-10-gc9f91