addons.git: yield the newest change to a version first

Signed-off-by: Arthur Zamarin <arthurzam@gentoo.org>

Author: arthurzam

NEWS.rst

@@ -15,6 +15,9 @@ pkgcheck 0.10.47 (unreleased)
   fresh one, instead of old commit dates for StableRequest and LiveOnlyPackage
   (Arthur Zamarin)
 
+- StableRequestCheck: count from the latest change to a version, not
+  sometimes from when it was added (Arthur Zamarin)
+
 -----------------------------
 pkgcheck 0.10.46 (2026-09-26)
 -----------------------------

src/pkgcheck/addons/git.py

@@ -331,12 +331,13 @@ def __init__(self, *args, **kwargs):
         super().__init__(*args, **kwargs)
 
     def _get_versions(self, cp):
+        """Changes to a package, newest first."""
         versions = []
         for status, data in self.cpv_dict[cp[0]][cp[1]].items():
             if status in self._status_filter:
                 for commit in data:
                     versions.append((status, commit))
-        return versions
+        return sorted(versions, key=lambda x: x[1][1], reverse=True)
 
     def _internal_gen_candidates(self, candidates, sorter, raw_pkg_cls, **kwargs):
         for cp in sorter(candidates):

tests/checks/test_stablereq.py

@@ -172,6 +172,25 @@ def test_renamed_ebuild(self):
         expected = StableRequest("0", ["~amd64"], 30, pkg=VersionedCPV("cat/pkg-2"))
         assert r == expected
 
+    def test_modified_before_newer_addition(self, monkeypatch):
+        def commit(msg, days_ago):
+            date = (datetime.now(UTC) - timedelta(days=days_ago)).isoformat()
+            monkeypatch.setenv("GIT_COMMITTER_DATE", date)
+            self.parent_git_repo.add_all(msg)
+
+        self.parent_repo.create_ebuild("cat/pkg-1", keywords=["amd64"])
+        commit("cat/pkg-1", 60)
+        self.parent_repo.create_ebuild("cat/pkg-2", keywords=["~amd64"])
+        commit("cat/pkg-2", 60)
+        with open(pjoin(self.parent_git_repo.path, "cat/pkg/pkg-2.ebuild"), "a") as f:
+            f.write("# comment\n")
+        commit("cat/pkg-2: add comment", 10)
+        self.parent_repo.create_ebuild("cat/pkg-3")
+        commit("cat/pkg-3", 0)
+        self.child_git_repo.run(["git", "pull", "origin", "main"])
+        self.init_check()
+        self.assertNoReport(self.check, self.source)
+
     def test_modified_ebuild(self):
         self.parent_repo.create_ebuild("cat/pkg-1", keywords=["amd64"])
         self.parent_git_repo.add_all("cat/pkg-1")