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# Copyright (C) 2026 Michael Trier (mtrier@gmail.com) and contributors
#
# This module is part of GitPython and is released under the
# 3-Clause BSD License: https://opensource.org/license/bsd-3-clause/
from pathlib import Path
import pytest
from git import Repo
from git.refs import RemoteReference
from git.refs import SymbolicReference
from gitdb.exc import BadName
def _write(repo, path, content):
full_path = Path(repo.working_tree_dir) / path
full_path.parent.mkdir(parents=True, exist_ok=True)
full_path.write_text(content)
repo.index.add([str(full_path)])
@pytest.fixture
def rev_parse_repo(tmp_path):
repo = Repo.init(tmp_path)
with repo.config_writer() as writer:
writer.set_value("user", "name", "GitPython Tests")
writer.set_value("user", "email", "gitpython@example.com")
_write(repo, "README.md", "root\n")
_write(repo, "CHANGES", "root changes\n")
_write(repo, "dir/file.txt", "root file\n")
root = repo.index.commit("root commit")
repo.create_tag("ann", ref=root, message="annotated tag")
_write(repo, "README.md", "release\n")
release = repo.index.commit("release candidate")
repo.create_tag("v1.0", ref=release)
main = repo.active_branch
_write(repo, "side.txt", "side\n")
side_commit = repo.index.commit("side branch", parent_commits=[root], head=False, skip_hooks=True)
repo.create_head("side", side_commit)
merge = repo.index.commit("merge side", parent_commits=[release, side_commit], skip_hooks=True)
repo.head.log_append(side_commit.binsha, "checkout: moving from side to main", merge.binsha)
repo.create_head("aaaaaaaa", merge)
repo.create_tag("@foo", ref=merge)
return {
"repo": repo,
"root": root,
"release": release,
"side": side_commit,
"merge": merge,
"main": main,
}
def test_rev_parse_names_hex_and_describe_forms(rev_parse_repo):
repo = rev_parse_repo["repo"]
release = rev_parse_repo["release"]
merge = rev_parse_repo["merge"]
assert repo.rev_parse("@") == merge
assert repo.rev_parse("@foo") == merge
assert repo.rev_parse("aaaaaaaa") == merge
assert repo.rev_parse(merge.hexsha[:7]) == merge
describe_name = "anything-9-g%s" % merge.hexsha[:7]
assert repo.rev_parse("v1.0-1-g%s" % merge.hexsha[:7]) == merge
assert repo.rev_parse(describe_name) == merge
assert repo.rev_parse("%s-dirty" % merge.hexsha[:7]) == merge
repo.create_tag(describe_name, ref=release)
assert repo.rev_parse(describe_name) == release
@pytest.mark.parametrize("name", ("objects", "config/branch"))
def test_rev_parse_names_conflicting_with_git_dir_entries(rev_parse_repo, name):
repo = rev_parse_repo["repo"]
branch = repo.create_head(name)
assert repo.rev_parse(name) == branch.commit
def test_rev_parse_navigation_and_peeling(rev_parse_repo):
repo = rev_parse_repo["repo"]
root = rev_parse_repo["root"]
release = rev_parse_repo["release"]
side = rev_parse_repo["side"]
merge = rev_parse_repo["merge"]
tag = repo.rev_parse("ann")
assert repo.rev_parse("HEAD^0") == merge
assert repo.rev_parse("HEAD~0") == merge
assert repo.rev_parse("HEAD^1") == release
assert repo.rev_parse("HEAD^2") == side
assert repo.rev_parse("HEAD~") == release
assert repo.rev_parse("HEAD^^") == root
assert tag.type == "tag"
assert repo.rev_parse("ann^{object}") == tag
assert repo.rev_parse("ann^{tag}") == tag
assert repo.rev_parse("ann^{}") == root
assert repo.rev_parse("ann^{commit}") == root
assert repo.rev_parse("HEAD^{tree}") == merge.tree
with pytest.raises(ValueError):
repo.rev_parse("HEAD^{/}")
def test_rev_parse_tree_and_index_paths(rev_parse_repo):
repo = rev_parse_repo["repo"]
merge = rev_parse_repo["merge"]
assert repo.rev_parse("HEAD:") == merge.tree
assert repo.rev_parse("HEAD:README.md") == merge.tree["README.md"]
assert repo.rev_parse("HEAD^{tree}:README.md") == merge.tree["README.md"]
assert repo.rev_parse(":README.md").binsha == merge.tree["README.md"].binsha
assert repo.rev_parse(":0:README.md").binsha == merge.tree["README.md"].binsha
def test_rev_parse_reflog_selectors(rev_parse_repo):
repo = rev_parse_repo["repo"]
merge = rev_parse_repo["merge"]
side = rev_parse_repo["side"]
main = rev_parse_repo["main"]
release = rev_parse_repo["release"]
assert repo.rev_parse("@{0}") == merge
assert repo.rev_parse("@{+0}") == merge
assert repo.rev_parse("@{1}") == release
assert repo.rev_parse("%s@{0}" % main.name) == merge
assert repo.rev_parse("@{-1}") == side
SymbolicReference.create(repo, "refs/remotes/origin/%s" % main.name, merge)
main.set_tracking_branch(RemoteReference(repo, "refs/remotes/origin/%s" % main.name))
assert repo.rev_parse("%s@{upstream}" % main.name) == merge
repo.head.reference = merge
assert repo.rev_parse("@{0}") == merge
assert repo.rev_parse("@{1}").hexsha == repo.git.rev_parse("@{1}")
assert repo.rev_parse("%s@{upstream}" % main.name) == merge
with pytest.raises(BadName):
repo.rev_parse("@{upstream}")
def test_rev_parse_commit_message_search(rev_parse_repo):
repo = rev_parse_repo["repo"]
release = rev_parse_repo["release"]
merge = rev_parse_repo["merge"]
assert repo.rev_parse(":/release") == release
assert repo.rev_parse("HEAD^{/release}") == release
assert repo.rev_parse("HEAD^{/!-release}") == merge
def test_rev_parse_rejects_invalid_object_specs(rev_parse_repo):
repo = rev_parse_repo["repo"]
with pytest.raises(ValueError):
repo.rev_parse(":")
with pytest.raises(ValueError):
repo.rev_parse(":/")
with pytest.raises(ValueError):
repo.rev_parse(":/[")
with pytest.raises(ValueError):
repo.rev_parse("HEAD^{/[}")
with pytest.raises(ValueError):
repo.rev_parse("@{-0}")
with pytest.raises(ValueError):
repo.rev_parse("HEAD^{invalid}")
with pytest.raises(BadName):
repo.rev_parse(":missing")