From 9ed45eebcd8990e221d518a345edbf3da00be86a Mon Sep 17 00:00:00 2001
From: psakiev <psakiev@sandia.gov>
Date: Fri, 24 Jan 2025 17:15:27 -0700
Subject: [PATCH] Style fixes

---
 lib/spack/spack/spec.py                  |  3 +--
 lib/spack/spack/test/versions.py         | 10 ++++------
 lib/spack/spack/version/version_types.py | 10 ++++++----
 3 files changed, 11 insertions(+), 12 deletions(-)

diff --git a/lib/spack/spack/spec.py b/lib/spack/spack/spec.py
index cf5c56f31a7..dbe6dff892f 100644
--- a/lib/spack/spack/spec.py
+++ b/lib/spack/spack/spec.py
@@ -152,8 +152,7 @@
     r"(})?"  # finish format string with non-escaped close brace }, or missing if not present
     r"|"
     # OPTION 3: mismatched close brace (option 2 would consume a matched open brace)
-    r"(})"  # brace
-    r")",
+    r"(})" r")",  # brace
     re.IGNORECASE,
 )
 
diff --git a/lib/spack/spack/test/versions.py b/lib/spack/spack/test/versions.py
index f78d61632fd..2d8c56dc6e2 100644
--- a/lib/spack/spack/test/versions.py
+++ b/lib/spack/spack/test/versions.py
@@ -810,13 +810,10 @@ def test_version_list_with_range_and_concrete_version_is_not_concrete():
     v = VersionList([Version("3.1"), VersionRange(Version("3.1.1"), Version("3.1.2"))])
     assert not v.concrete
 
+
 @pytest.mark.parametrize(
-    "pre_equal, post_equal", (
-    ("foo", "develop"),
-    ("a"*40, "develop"),
-    ("a"*40, None),
-    ("v1.2.0", "1.2.0")
-    )
+    "pre_equal, post_equal",
+    (("foo", "develop"), ("a" * 40, "develop"), ("a" * 40, None), ("v1.2.0", "1.2.0")),
 )
 def test_git_versions_store_ref_requests(pre_equal, post_equal):
     """
@@ -840,6 +837,7 @@ def test_git_versions_store_ref_requests(pre_equal, post_equal):
     if v.is_commit:
         assert v.ref == v.commit_sha
 
+
 @pytest.mark.parametrize(
     "vstring, eq_vstring, is_commit",
     (
diff --git a/lib/spack/spack/version/version_types.py b/lib/spack/spack/version/version_types.py
index e2a7f26b35f..7f9f91004dd 100644
--- a/lib/spack/spack/version/version_types.py
+++ b/lib/spack/spack/version/version_types.py
@@ -551,13 +551,12 @@ class GitVersion(ConcreteVersion):
     __slots__ = ["has_git_prefix", "commit_sha", "ref", "std_version", "_ref_lookup"]
 
     def __init__(self, string: str):
-
         # TODO will be required for concrete specs when commit lookup added
-        self.commit_sha: Optional[String] = None
+        self.commit_sha: Optional[str] = None
         self.std_version: Optional[StandardVersion] = None
 
         # optional user supplied git ref
-        self.ref: Optional[String] = None
+        self.ref: Optional[str] = None
 
         # An object that can lookup git refs to compare them to versions
         self._ref_lookup: Optional[AbstractRefLookup] = None
@@ -638,7 +637,9 @@ def satisfies(self, other: VersionType) -> bool:
         raise TypeError(f"'satisfies()' not supported for instances of {type(other)}")
 
     def __str__(self) -> str:
-        s = f"git.{self.ref}" if self.has_git_prefix else self.ref
+        s = ""
+        if self.ref:
+            s += f"git.{self.ref}" if self.has_git_prefix else self.ref
         # Note: the solver actually depends on str(...) to produce the effective version.
         # So when a lookup is attached, we require the resolved version to be printed.
         # But for standalone git versions that don't have a repo attached, it would still
@@ -660,6 +661,7 @@ def __eq__(self, other: object) -> bool:
         return (
             isinstance(other, GitVersion)
             and self.ref == other.ref
+            # TODO(psakiev) this needs to chamge to commits when we turn on lookups
             and self.ref_version == other.ref_version
         )