From be8d5f14a4d987f1f98421e317d82b05f88b02c3 Mon Sep 17 00:00:00 2001
From: "go-git-renovate[bot]"
 <245267575+go-git-renovate[bot]@users.noreply.github.com>
Date: Sun, 20 Sep 2026 09:35:28 +0000
Subject: [PATCH 1/2] build: Update dependency golangci/golangci-lint to
 v2.13.1

Signed-off-by: go-git-renovate[bot] <245267575+go-git-renovate[bot]@users.noreply.github.com>
Signed-off-by: go-git-renovate[bot] <245267575+go-git-renovate[bot]@users.noreply.github.com>
---
 Makefile | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/Makefile b/Makefile
index 8748f19..99e86b3 100644
--- a/Makefile
+++ b/Makefile
@@ -1,5 +1,5 @@
 # renovate: datasource=github-tags depName=golangci/golangci-lint
-GOLANGCI_VERSION ?= v2.12.2
+GOLANGCI_VERSION ?= v2.13.1
 TOOLS_BIN := $(shell mkdir -p build/tools && realpath build/tools)
 
 GOLANGCI = $(TOOLS_BIN)/golangci-lint-$(GOLANGCI_VERSION)

From 5d685cd41285afeff24193957d6405c0d9cdb761 Mon Sep 17 00:00:00 2001
From: "copilot-swe-agent[bot]" <198982749+Copilot@users.noreply.github.com>
Date: Wed, 23 Sep 2026 16:04:46 +0000
Subject: [PATCH 2/2] fix: restore golangci-lint v2.13 validation

Co-authored-by: pjbgf <5452977+pjbgf@users.noreply.github.com>
---
 .golangci.yaml                          | 1 +
 cmd/gogit/cat-file.go                   | 4 ++--
 internal/plumbing/object/mktree_test.go | 2 +-
 3 files changed, 4 insertions(+), 3 deletions(-)

diff --git a/.golangci.yaml b/.golangci.yaml
index 747aaf5..22e317d 100644
--- a/.golangci.yaml
+++ b/.golangci.yaml
@@ -7,6 +7,7 @@ linters:
     - depguard
     - gochecknoglobals
     - exhaustruct
+    - exhaustruct_v5
     - err113
     - gochecknoinits
     - ireturn
diff --git a/cmd/gogit/cat-file.go b/cmd/gogit/cat-file.go
index 6b4e717..e1fda60 100644
--- a/cmd/gogit/cat-file.go
+++ b/cmd/gogit/cat-file.go
@@ -69,7 +69,7 @@ var catFileCmd = &cobra.Command{
 // catFileExistsCheck never returns: it calls os.Exit(1) when the object is
 // absent and os.Exit(0) when it is present. The signature returns error only
 // to fit cobra's RunE contract via its caller.
-func catFileExistsCheck(r *git.Repository, oid string) error { //nolint:unparam
+func catFileExistsCheck(r *git.Repository, oid string) error {
 	h := plumbing.NewHash(oid)
 	if _, err := r.Storer.EncodedObject(plumbing.AnyObject, h); err != nil {
 		os.Exit(1)
@@ -122,7 +122,7 @@ func catFileBatchCheckRun(cmd *cobra.Command, r *git.Repository, stdin io.Reader
 			continue
 		}
 
-		oid := strings.SplitN(raw, " ", 2)[0]
+		oid, _, _ := strings.Cut(raw, " ")
 
 		h := plumbing.NewHash(oid)
 
diff --git a/internal/plumbing/object/mktree_test.go b/internal/plumbing/object/mktree_test.go
index 5538fce..9b36fc3 100644
--- a/internal/plumbing/object/mktree_test.go
+++ b/internal/plumbing/object/mktree_test.go
@@ -71,7 +71,7 @@ func TestWriteTreeRawAcceptsNullHash(t *testing.T) {
 	t.Parallel()
 
 	store := memory.NewStorage()
-	_ = (storer.EncodedObjectStorer)(store) // type assertion check
+	_ = storer.EncodedObjectStorer(store) // type assertion check
 
 	obj := store.NewEncodedObject()
 	obj.SetType(plumbing.TreeObject)