refstore: Improve interfaces, errors, and make batch work v0.1.92

1 files changed, 76 insertions, 0 deletions

diff --git a/refstore/files/update_direct_read.go b/refstore/files/update_direct_read.go
new file mode 100644
index 00000000..4efecdca
--- /dev/null
+++ b/refstore/files/update_direct_read.go
@@ -0,0 +1,76 @@
+package files
+
+import (
+	"errors"
+	"fmt"
+
+	"codeberg.org/lindenii/furgit/ref"
+	"codeberg.org/lindenii/furgit/ref/refname"
+	"codeberg.org/lindenii/furgit/refstore"
+)
+
+func (executor *refUpdateExecutor) directRead(name string) (directRefState, error) {
+	loc := executor.store.loosePath(name)
+	hasPacked := false
+
+	if loc.root == rootCommon && refname.ParseWorktree(name).Type == refname.WorktreeShared {
+		packed, packedErr := executor.store.readPackedRefs()
+		if packedErr != nil {
+			return directRefState{}, packedErr
+		}
+
+		_, hasPacked = packed.byName[name]
+	}
+
+	loose, err := executor.store.readLooseRef(name)
+	if err == nil {
+		switch loose := loose.(type) {
+		case ref.Detached:
+			return directRefState{
+				kind:     directDetached,
+				name:     name,
+				id:       loose.ID,
+				isLoose:  true,
+				isPacked: hasPacked,
+			}, nil
+		case ref.Symbolic:
+			return directRefState{
+				kind:     directSymbolic,
+				name:     name,
+				target:   loose.Target,
+				isLoose:  true,
+				isPacked: hasPacked,
+			}, nil
+		default:
+			return directRefState{}, fmt.Errorf("refstore/files: unsupported reference type %T", loose)
+		}
+	}
+
+	if !errors.Is(err, refstore.ErrReferenceNotFound) {
+		info, statErr := executor.store.rootFor(loc.root).Stat(loc.path)
+		if statErr != nil || !info.IsDir() {
+			return directRefState{}, err
+		}
+	}
+
+	if hasPacked {
+		packed, packedErr := executor.store.readPackedRefs()
+		if packedErr != nil {
+			return directRefState{}, packedErr
+		}
+
+		detached := packed.byName[name]
+
+		return directRefState{
+			kind:     directDetached,
+			name:     name,
+			id:       detached.ID,
+			isPacked: true,
+		}, nil
+	}
+
+	return directRefState{
+		kind: directMissing,
+		name: name,
+	}, nil
+}