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67881c0c3b
Replace direct `packed-refs` file parsing with `git for-each-ref` plumbing to support both `files` and `reftable` backends. Bug: 476209856 Change-Id: I2ad8ff8f3382426600f15370c997f9bc17165485 Reviewed-on: https://gerrit-review.googlesource.com/c/git-repo/+/550401 Commit-Queue: Gavin Mak <gavinmak@google.com> Reviewed-by: Mike Frysinger <vapier@google.com> Tested-by: Gavin Mak <gavinmak@google.com>
100 lines
3.2 KiB
Python
100 lines
3.2 KiB
Python
# Copyright (C) 2026 The Android Open Source Project
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#
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# Licensed under the Apache License, Version 2.0 (the "License");
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# you may not use this file except in compliance with the License.
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# You may obtain a copy of the License at
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS,
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# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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# See the License for the specific language governing permissions and
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# limitations under the License.
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"""Unittests for the git_refs.py module."""
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import os
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from pathlib import Path
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import subprocess
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import pytest
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import utils_for_test
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import git_refs
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def _run(repo, *args):
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return subprocess.run(
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["git", "-C", repo, *args],
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stdout=subprocess.PIPE,
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stderr=subprocess.PIPE,
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encoding="utf-8",
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check=True,
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).stdout.strip()
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def _init_repo(tmp_path, reftable=False):
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repo = os.path.join(tmp_path, "repo")
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ref_format = "reftable" if reftable else "files"
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utils_for_test.init_git_tree(repo, ref_format=ref_format)
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Path(os.path.join(repo, "a")).write_text("1")
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_run(repo, "add", "a")
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_run(repo, "commit", "-q", "-m", "init")
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return repo
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@pytest.mark.parametrize("reftable", [False, True])
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def test_reads_refs(tmp_path, reftable):
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if reftable and not utils_for_test.supports_reftable():
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pytest.skip("reftable not supported")
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repo = _init_repo(tmp_path, reftable=reftable)
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gitdir = os.path.join(repo, ".git")
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refs = git_refs.GitRefs(gitdir)
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branch = _run(repo, "symbolic-ref", "--short", "HEAD")
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head = _run(repo, "rev-parse", "HEAD")
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assert refs.symref("HEAD") == f"refs/heads/{branch}"
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assert refs.get("HEAD") == head
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assert refs.get(f"refs/heads/{branch}") == head
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@pytest.mark.parametrize("reftable", [False, True])
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def test_updates_when_refs_change(tmp_path, reftable):
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if reftable and not utils_for_test.supports_reftable():
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pytest.skip("reftable not supported")
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repo = _init_repo(tmp_path, reftable=reftable)
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gitdir = os.path.join(repo, ".git")
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refs = git_refs.GitRefs(gitdir)
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head = _run(repo, "rev-parse", "HEAD")
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assert refs.get("refs/heads/topic") == ""
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_run(repo, "branch", "topic")
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assert refs.get("refs/heads/topic") == head
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_run(repo, "branch", "-D", "topic")
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assert refs.get("refs/heads/topic") == ""
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@pytest.mark.skipif(
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not utils_for_test.supports_refs_migrate(),
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reason="git refs migrate reftable support is required for this test",
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)
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def test_updates_when_storage_backend_toggles(tmp_path):
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repo = _init_repo(tmp_path, reftable=False)
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gitdir = os.path.join(repo, ".git")
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refs = git_refs.GitRefs(gitdir)
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head = _run(repo, "rev-parse", "HEAD")
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assert refs.get("refs/heads/reftable-branch") == ""
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_run(repo, "refs", "migrate", "--ref-format=reftable")
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_run(repo, "branch", "reftable-branch")
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assert refs.get("refs/heads/reftable-branch") == head
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assert refs.get("refs/heads/files-branch") == ""
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_run(repo, "refs", "migrate", "--ref-format=files")
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_run(repo, "branch", "files-branch")
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assert refs.get("refs/heads/files-branch") == head
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