GitPython/test/test_rev_parse.py at main · gitpython-developers/GitPython · GitHub

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# This module is part of GitPython and is released under the

# 3-Clause BSD License: https://opensource.org/license/bsd-3-clause/

import subprocess

import sys

from pathlib import Path

import pytest

from gitdb.exc import BadName

from git import Actor, Commit, Repo

from git.refs import RemoteReference, SymbolicReference

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

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

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

@pytest.mark.parametrize(

"revision",

[

":/release[[:space:]]candidate",

"HEAD^{/release{1}}",

"ann^{/root}",

":/!-release",

"HEAD^{/!-release}",

"HEAD^{/release}^0",

"HEAD^{/release}^{tree}",

)

def test_rev_parse_commit_message_search_matches_git(rev_parse_repo, revision):

repo = rev_parse_repo["repo"]

expected = repo.git.rev_parse("--verify", revision)

assert repo.rev_parse(revision).hexsha == expected

@pytest.mark.parametrize("revision", [":/release", "HEAD^{/release}"])

def test_commit_and_tree_message_search(rev_parse_repo, revision):

repo = rev_parse_repo["repo"]

release = rev_parse_repo["release"]

assert repo.commit(revision) == release

assert repo.tree(revision) == release.tree

def test_rev_parse_commit_message_literal_bang_and_option(rev_parse_repo):

repo = rev_parse_repo["repo"]

commit = repo.index.commit("!urgent --all")

assert repo.rev_parse(":/!!urgent") == commit

assert repo.rev_parse("HEAD^{/!!urgent}") == commit

assert repo.rev_parse(":/--all") == commit

assert repo.rev_parse("HEAD^{/--all}") == commit

def test_rev_parse_commit_message_escaped_braces(rev_parse_repo):

repo = rev_parse_repo["repo"]

commit = repo.index.commit("literal{3}")

repo.index.commit("literalll")

assert repo.rev_parse(r"HEAD^{/literal\{3\}}") == commit

def test_revision_message_search_does_not_backtrack_in_python(tmp_path):

with Repo.init(tmp_path) as repo:

actor = Actor("GitPython Tests", "gitpython@example.com")

repo.index.commit("hello " + "b" * 80, author=actor, committer=actor)

# Run the adversarial expression in a killable process: Python's regex engine

# can otherwise hold the GIL indefinitely, including against a short message.

subprocess.run(

[

sys.executable,

"-c",

"""

import sys

from git import Repo

from gitdb.exc import BadName

with Repo(sys.argv[1]) as repo:

for resolve in (repo.rev_parse, repo.commit, repo.tree):

for revision in (':/(.+)+ZZZ', 'HEAD^{/(.+)+ZZZ}'):

try:

resolve(revision)

except BadName:

pass

else:

raise AssertionError('Unexpected match: ' + revision)

""",

str(tmp_path),

check=True,

capture_output=True,

timeout=5,

)

def test_revision_message_search_does_not_deserialize_history(tmp_path, monkeypatch):

with Repo.init(tmp_path) as repo:

actor = Actor("GitPython Tests", "gitpython@example.com")

commit = repo.index.commit("needle", author=actor, committer=actor)

def reject_deserialization(*args, **kwargs):

raise AssertionError("Message search must not deserialize commits in Python")

monkeypatch.setattr(Commit, "_deserialize", reject_deserialization)

assert repo.rev_parse(":/needle") == commit

assert repo.rev_parse("HEAD^{/needle}") == commit

def test_commit_and_tree_resolve_before_peeling(rev_parse_repo):

repo = rev_parse_repo["repo"]

root = rev_parse_repo["root"]

merge = rev_parse_repo["merge"]

assert repo.commit("ann") == root

assert repo.tree("ann") == root.tree

assert repo.tree("HEAD:dir") == merge.tree["dir"]

assert repo.tree("HEAD^{tree}") == merge.tree

with pytest.raises(ValueError):

repo.commit("HEAD^{tree}")

with pytest.raises(ValueError):

repo.tree("HEAD:README.md")

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(BadName):

repo.rev_parse(":/[")

with pytest.raises(BadName):

repo.rev_parse("HEAD^{/[}")

with pytest.raises(ValueError):

repo.rev_parse(":/!reserved")

with pytest.raises(ValueError):

repo.rev_parse("HEAD^{/!reserved}")

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")

GitPython/test/test_rev_parse.py at main · gitpython-developers/GitPython · GitHub

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