git: use escape method from GitWildMatchPattern

dvc/scm/git/__init__.py

@@ -6,6 +6,7 @@ import os
 import logging
 
 from funcy import cached_property
+from pathspec.patterns import GitWildMatchPattern
 
 from dvc.exceptions import GitHookAlreadyExistsError
 from dvc.utils.compat import str, open
@@ -150,7 +151,7 @@ class Git(Base):
         self.ignored_paths.append(path)
 
     def _add_entry_to_gitignore(self, entry, gitignore):
-        entry = self._escape(entry)
+        entry = GitWildMatchPattern.escape(entry)
 
         with open(gitignore, "a+", encoding="utf-8") as fobj:
             fobj.seek(0, os.SEEK_END)
@@ -163,13 +164,6 @@ class Git(Base):
                 prefix = "" if last == "\n" else "\n"
             fobj.write("{}{}\n".format(prefix, entry))
 
-    @staticmethod
-    def _escape(entry):
-        # Reference: https://git-scm.com/docs/gitignore#_pattern_format
-        meta_characters = r"[]!*#?"
-
-        return "".join("\\" + x if x in meta_characters else x for x in entry)
-
     def ignore_remove(self, path):
         entry, gitignore = self._get_gitignore(path)
 

setup.py

@@ -63,7 +63,7 @@ install_requires = [
     "humanize>=0.5.1",
     "ruamel.yaml>=0.16.1",
     "funcy>=1.12",
-    "pathspec>=0.5.9",
+    "pathspec@git+https://github.com/cpburnz/python-path-specification@master",
     "shortuuid>=0.5.0",
     "tqdm>=4.35.0",
     "packaging>=19.0",