version2 (#1)

Co-authored-by: u80864958 <niklas.breitenstein@bit.admin.ch>
Reviewed-on: #1

pkg/ignore/filesystem.go

@@ -0,0 +1,9 @@
+package ignore
+
+import "strings"
+
+type Filesystem struct{}
+
+func (f Filesystem) Ignore(name string) bool {
+	return strings.Contains(name, "/.") || strings.HasPrefix(name, ".")
+}

pkg/ignore/gitignore.go

@@ -0,0 +1,65 @@
+package ignore
+
+import (
+	"errors"
+	"os"
+	"path"
+
+	ignore "github.com/denormal/go-gitignore"
+)
+
+const (
+	gitIgnore = ".gitignore"
+)
+
+var (
+	ErrNotFound = errors.New("Not Found")
+)
+
+// getIgnore attempts to find and parse a .gitignore file recursively.
+// It searches for the .gitignore file starting from the given path and traversing up the directory tree.
+// It returns a pointer to the parsed ignore.GitIgnore object if found, otherwise nil.
+func FindGitignore(name string) (ignore.GitIgnore, error) {
+
+	for {
+		stat, err := os.Stat(name)
+		if err != nil {
+			return nil, err
+		}
+
+		// If the current path is a directory, iterate through its contents.
+		if stat.IsDir() {
+			dir, err := os.ReadDir(name)
+			if err != nil {
+				name, _ = path.Split(name)
+				if name == "" {
+					return nil, ErrNotFound
+				}
+			}
+			for _, e := range dir {
+
+				if !e.IsDir() && e.Name() == gitIgnore {
+					if ignore, err := ignore.NewFromFile(path.Join(name, e.Name())); err == nil {
+						return ignore, nil
+					}
+					return nil, err
+				}
+			}
+
+		}
+
+		// If the current path is the .gitignore file itself.
+		if stat.Name() == gitIgnore {
+			if ignore, err := ignore.NewFromFile(name); err == nil {
+				return ignore, nil
+			}
+			return nil, err
+		}
+
+		name, _ = path.Split(name)
+		if name == "" {
+			return nil, ErrNotFound
+		}
+
+	}
+}