a version with known bug fixed but not sure any more obscure ones

internal/resolver/resolver.go

@@ -0,0 +1,83 @@
+package resolver
+
+import (
+	"cliprepo/internal/tree"
+	"os"
+	"path/filepath"
+)
+
+type Resolver struct {
+	root string
+	seen map[string]struct{}
+}
+
+func New(root string) *Resolver {
+	return &Resolver{
+		root: root,
+		seen: make(map[string]struct{}),
+	}
+}
+
+// WalkAll 遍历所有文件，并自动跳过 .git 和 .gitignore 中的文件
+func (r *Resolver) WalkAll() ([]string, error) {
+	var result []string
+	ig, _ := tree.Load(r.root)
+
+	err := filepath.Walk(r.root, func(path string, info os.FileInfo, err error) error {
+		if err != nil {
+			return nil
+		}
+
+		// 显式跳过 .git 目录
+		if info.IsDir() && info.Name() == ".git" {
+			return filepath.SkipDir
+		}
+
+		rel, _ := filepath.Rel(r.root, path)
+
+		// 遵循 .gitignore 规则
+		if ig != nil && ig.MatchesPath(rel) {
+			if info.IsDir() {
+				return filepath.SkipDir
+			}
+			return nil
+		}
+
+		if info.IsDir() {
+			return nil
+		}
+
+		r.add(rel, &result)
+		return nil
+	})
+
+	return result, err
+}
+
+func (r *Resolver) AddFile(path string, result *[]string) {
+	r.add(path, result)
+}
+
+func (r *Resolver) add(path string, result *[]string) {
+	if _, ok := r.seen[path]; ok {
+		return
+	}
+	r.seen[path] = struct{}{}
+	*result = append(*result, path)
+}
+
+// Unique 保留此方法供 run.go 调用
+func (r *Resolver) Unique(in []string) []string {
+	seen := make(map[string]struct{})
+	out := make([]string, 0, len(in))
+
+	for _, f := range in {
+		if _, ok := seen[f]; ok {
+			continue
+		}
+		seen[f] = struct{}{}
+		out = append(out, f)
+	}
+
+	return out
+}