GitPython/test/test_refs.py at 3.1.38 · gitpython-developers/GitPython · GitHub

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# test_refs.py

# This module is part of GitPython and is released under

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

from itertools import chain

from pathlib import Path

from git import (

Reference,

Head,

TagReference,

RemoteReference,

Commit,

SymbolicReference,

GitCommandError,

RefLog,

GitConfigParser,

)

from git.objects.tag import TagObject

from test.lib import TestBase, with_rw_repo

from git.util import Actor

from gitdb.exc import BadName

import git.refs as refs

import os.path as osp

import tempfile

class TestRefs(TestBase):

def test_from_path(self):

# should be able to create any reference directly

for ref_type in (Reference, Head, TagReference, RemoteReference):

for name in ("rela_name", "path/rela_name"):

full_path = ref_type.to_full_path(name)

instance = ref_type.from_path(self.rorepo, full_path)

assert isinstance(instance, ref_type)

# END for each name

# END for each type

# invalid path

self.assertRaises(ValueError, TagReference, self.rorepo, "refs/invalid/tag")

# works without path check

TagReference(self.rorepo, "refs/invalid/tag", check_path=False)

def test_tag_base(self):

tag_object_refs = []

for tag in self.rorepo.tags:

assert "refs/tags" in tag.path

assert tag.name

assert isinstance(tag.commit, Commit)

if tag.tag is not None:

tag_object_refs.append(tag)

tagobj = tag.tag

# have no dict

self.assertRaises(AttributeError, setattr, tagobj, "someattr", 1)

assert isinstance(tagobj, TagObject)

assert tagobj.tag == tag.name

assert isinstance(tagobj.tagger, Actor)

assert isinstance(tagobj.tagged_date, int)

assert isinstance(tagobj.tagger_tz_offset, int)

assert tagobj.message

assert tag.object == tagobj

# can't assign the object

self.assertRaises(AttributeError, setattr, tag, "object", tagobj)

# END if we have a tag object

# END for tag in repo-tags

assert tag_object_refs

assert isinstance(self.rorepo.tags["0.1.5"], TagReference)

def test_tags_author(self):

tag = self.rorepo.tags[0]

tagobj = tag.tag

assert isinstance(tagobj.tagger, Actor)

tagger_name = tagobj.tagger.name

assert tagger_name == "Michael Trier"

def test_tags(self):

# tag refs can point to tag objects or to commits

s = set()

ref_count = 0

for ref in chain(self.rorepo.tags, self.rorepo.heads):

ref_count += 1

assert isinstance(ref, refs.Reference)

assert str(ref) == ref.name

assert repr(ref)

assert ref == ref

assert not ref != ref

s.add(ref)

# END for each ref

assert len(s) == ref_count

assert len(s | s) == ref_count

@with_rw_repo("HEAD", bare=False)

def test_heads(self, rwrepo):

for head in rwrepo.heads:

assert head.name

assert head.path

assert "refs/heads" in head.path

prev_object = head.object

cur_object = head.object

assert prev_object == cur_object # represent the same git object

assert prev_object is not cur_object # but are different instances

with head.config_writer() as writer:

tv = "testopt"

writer.set_value(tv, 1)

assert writer.get_value(tv) == 1

assert head.config_reader().get_value(tv) == 1

with head.config_writer() as writer:

writer.remove_option(tv)

# after the clone, we might still have a tracking branch setup

head.set_tracking_branch(None)

assert head.tracking_branch() is None

remote_ref = rwrepo.remotes[0].refs[0]

assert head.set_tracking_branch(remote_ref) is head

assert head.tracking_branch() == remote_ref

head.set_tracking_branch(None)

assert head.tracking_branch() is None

special_name = "feature#123"

special_name_remote_ref = SymbolicReference.create(rwrepo, "refs/remotes/origin/%s" % special_name)

gp_tracking_branch = rwrepo.create_head("gp_tracking#123")

special_name_remote_ref = rwrepo.remotes[0].refs[special_name] # get correct type

gp_tracking_branch.set_tracking_branch(special_name_remote_ref)

TBranch = gp_tracking_branch.tracking_branch()

if TBranch is not None:

assert TBranch.path == special_name_remote_ref.path

git_tracking_branch = rwrepo.create_head("git_tracking#123")

rwrepo.git.branch("-u", special_name_remote_ref.name, git_tracking_branch.name)

TBranch = gp_tracking_branch.tracking_branch()

if TBranch is not None:

assert TBranch.name == special_name_remote_ref.name

# END for each head

# verify REFLOG gets altered

head = rwrepo.head

cur_head = head.ref

cur_commit = cur_head.commit

pcommit = cur_head.commit.parents[0].parents[0]

hlog_len = len(head.log())

blog_len = len(cur_head.log())

assert head.set_reference(pcommit, "detached head") is head

# one new log-entry

thlog = head.log()

assert len(thlog) == hlog_len + 1

assert thlog[-1].oldhexsha == cur_commit.hexsha

assert thlog[-1].newhexsha == pcommit.hexsha

# the ref didn't change though

assert len(cur_head.log()) == blog_len

# head changes once again, cur_head doesn't change

head.set_reference(cur_head, "reattach head")

assert len(head.log()) == hlog_len + 2

assert len(cur_head.log()) == blog_len

# adjusting the head-ref also adjust the head, so both reflogs are

# altered

cur_head.set_commit(pcommit, "changing commit")

assert len(cur_head.log()) == blog_len + 1

assert len(head.log()) == hlog_len + 3

# with automatic dereferencing

assert head.set_commit(cur_commit, "change commit once again") is head

assert len(head.log()) == hlog_len + 4

assert len(cur_head.log()) == blog_len + 2

# a new branch has just a single entry

other_head = Head.create(rwrepo, "mynewhead", pcommit, logmsg="new head created")

log = other_head.log()

assert len(log) == 1

assert log[0].oldhexsha == pcommit.NULL_HEX_SHA

assert log[0].newhexsha == pcommit.hexsha

@with_rw_repo("HEAD", bare=False)

def test_set_tracking_branch_with_import(self, rwrepo):

# prepare included config file

included_config = osp.join(rwrepo.git_dir, "config.include")

with GitConfigParser(included_config, read_only=False) as writer:

writer.set_value("test", "value", "test")

assert osp.exists(included_config)

with rwrepo.config_writer() as writer:

writer.set_value("include", "path", included_config)

for head in rwrepo.heads:

head.set_tracking_branch(None)

assert head.tracking_branch() is None

remote_ref = rwrepo.remotes[0].refs[0]

assert head.set_tracking_branch(remote_ref) is head

assert head.tracking_branch() == remote_ref

head.set_tracking_branch(None)

assert head.tracking_branch() is None

def test_refs(self):

types_found = set()

for ref in self.rorepo.refs:

types_found.add(type(ref))

assert len(types_found) >= 3

def test_is_valid(self):

assert not Reference(self.rorepo, "refs/doesnt/exist").is_valid()

assert self.rorepo.head.is_valid()

assert self.rorepo.head.reference.is_valid()

assert not SymbolicReference(self.rorepo, "hellothere").is_valid()

def test_orig_head(self):

assert type(self.rorepo.head.orig_head()) == SymbolicReference

@with_rw_repo("0.1.6")

def test_head_checkout_detached_head(self, rw_repo):

res = rw_repo.remotes.origin.refs.master.checkout()

assert isinstance(res, SymbolicReference)

assert res.name == "HEAD"

@with_rw_repo("0.1.6")

def test_head_reset(self, rw_repo):

cur_head = rw_repo.head

old_head_commit = cur_head.commit

new_head_commit = cur_head.ref.commit.parents[0]

cur_head.reset(new_head_commit, index=True) # index only

assert cur_head.reference.commit == new_head_commit

self.assertRaises(ValueError, cur_head.reset, new_head_commit, index=False, working_tree=True)

new_head_commit = new_head_commit.parents[0]

cur_head.reset(new_head_commit, index=True, working_tree=True) # index + wt

assert cur_head.reference.commit == new_head_commit

# paths - make sure we have something to do

rw_repo.index.reset(old_head_commit.parents[0])

cur_head.reset(cur_head, paths="test")

cur_head.reset(new_head_commit, paths="lib")

# hard resets with paths don't work, its all or nothing

self.assertRaises(

GitCommandError,

cur_head.reset,

new_head_commit,

working_tree=True,

paths="lib",

)

# we can do a mixed reset, and then checkout from the index though

cur_head.reset(new_head_commit)

rw_repo.index.checkout(["lib"], force=True)

# now that we have a write write repo, change the HEAD reference - its

# like git-reset --soft

heads = rw_repo.heads

assert heads

for head in heads:

cur_head.reference = head

assert cur_head.reference == head

assert isinstance(cur_head.reference, Head)

assert cur_head.commit == head.commit

assert not cur_head.is_detached

# END for each head

# detach

active_head = heads[0]

curhead_commit = active_head.commit

cur_head.reference = curhead_commit

assert cur_head.commit == curhead_commit

assert cur_head.is_detached

self.assertRaises(TypeError, getattr, cur_head, "reference")

# tags are references, hence we can point to them

some_tag = rw_repo.tags[0]

cur_head.reference = some_tag

assert not cur_head.is_detached

assert cur_head.commit == some_tag.commit

assert isinstance(cur_head.reference, TagReference)

# put HEAD back to a real head, otherwise everything else fails

cur_head.reference = active_head

# type check

self.assertRaises(ValueError, setattr, cur_head, "reference", "that")

# head handling

commit = "HEAD"

prev_head_commit = cur_head.commit

for count, new_name in enumerate(("my_new_head", "feature/feature1")):

actual_commit = commit + "^" * count

new_head = Head.create(rw_repo, new_name, actual_commit)

assert new_head.is_detached

assert cur_head.commit == prev_head_commit

assert isinstance(new_head, Head)

# already exists, but has the same value, so its fine

Head.create(rw_repo, new_name, new_head.commit)

# its not fine with a different value

self.assertRaises(OSError, Head.create, rw_repo, new_name, new_head.commit.parents[0])

# force it

new_head = Head.create(rw_repo, new_name, actual_commit, force=True)

old_path = new_head.path

old_name = new_head.name

assert new_head.rename("hello").name == "hello"

assert new_head.rename("hello/world").name == "hello/world"

assert new_head.rename(old_name).name == old_name and new_head.path == old_path

# rename with force

tmp_head = Head.create(rw_repo, "tmphead")

self.assertRaises(GitCommandError, tmp_head.rename, new_head)

tmp_head.rename(new_head, force=True)

assert tmp_head == new_head and tmp_head.object == new_head.object

logfile = RefLog.path(tmp_head)

assert osp.isfile(logfile)

Head.delete(rw_repo, tmp_head)

# deletion removes the log as well

assert not osp.isfile(logfile)

heads = rw_repo.heads

assert tmp_head not in heads and new_head not in heads

# force on deletion testing would be missing here, code looks okay though ;)

# END for each new head name

self.assertRaises(TypeError, RemoteReference.create, rw_repo, "some_name")

# tag ref

tag_name = "5.0.2"

TagReference.create(rw_repo, tag_name)

self.assertRaises(GitCommandError, TagReference.create, rw_repo, tag_name)

light_tag = TagReference.create(rw_repo, tag_name, "HEAD~1", force=True)

assert isinstance(light_tag, TagReference)

assert light_tag.name == tag_name

assert light_tag.commit == cur_head.commit.parents[0]

assert light_tag.tag is None

# tag with tag object

other_tag_name = "releases/1.0.2RC"

msg = "my mighty tag\nsecond line"

obj_tag = TagReference.create(rw_repo, other_tag_name, message=msg)

assert isinstance(obj_tag, TagReference)

assert obj_tag.name == other_tag_name

assert obj_tag.commit == cur_head.commit

assert obj_tag.tag is not None

TagReference.delete(rw_repo, light_tag, obj_tag)

tags = rw_repo.tags

assert light_tag not in tags and obj_tag not in tags

# remote deletion

remote_refs_so_far = 0

remotes = rw_repo.remotes

assert remotes

for remote in remotes:

refs = remote.refs

# If a HEAD exists, it must be deleted first. Otherwise it might

# end up pointing to an invalid ref it the ref was deleted before.

remote_head_name = "HEAD"

if remote_head_name in refs:

RemoteReference.delete(rw_repo, refs[remote_head_name])

del refs[remote_head_name]

# END handle HEAD deletion

RemoteReference.delete(rw_repo, *refs)

remote_refs_so_far += len(refs)

for ref in refs:

assert ref.remote_name == remote.name

# END for each ref to delete

assert remote_refs_so_far

for remote in remotes:

# remotes without references should produce an empty list

self.assertEqual(remote.refs, [])

# END for each remote

# change where the active head points to

if cur_head.is_detached:

cur_head.reference = rw_repo.heads[0]

head = cur_head.reference

old_commit = head.commit

head.commit = old_commit.parents[0]

assert head.commit == old_commit.parents[0]

assert head.commit == cur_head.commit

head.commit = old_commit

# setting a non-commit as commit fails, but succeeds as object

head_tree = head.commit.tree

self.assertRaises(ValueError, setattr, head, "commit", head_tree)

assert head.commit == old_commit # and the ref did not change

# we allow heads to point to any object

head.object = head_tree

assert head.object == head_tree

# cannot query tree as commit

self.assertRaises(TypeError, getattr, head, "commit")

# set the commit directly using the head. This would never detach the head

assert not cur_head.is_detached

head.object = old_commit

cur_head.reference = head.commit

assert cur_head.is_detached

parent_commit = head.commit.parents[0]

assert cur_head.is_detached

cur_head.commit = parent_commit

assert cur_head.is_detached and cur_head.commit == parent_commit

cur_head.reference = head

assert not cur_head.is_detached

cur_head.commit = parent_commit

assert not cur_head.is_detached

assert head.commit == parent_commit

# test checkout

active_branch = rw_repo.active_branch

for head in rw_repo.heads:

checked_out_head = head.checkout()

assert checked_out_head == head

# END for each head to checkout

# checkout with branch creation

new_head = active_branch.checkout(b="new_head")

assert active_branch != rw_repo.active_branch

assert new_head == rw_repo.active_branch

# checkout with force as we have a changed a file

# clear file

open(new_head.commit.tree.blobs[-1].abspath, "w").close()

assert len(new_head.commit.diff(None))

# create a new branch that is likely to touch the file we changed

far_away_head = rw_repo.create_head("far_head", "HEAD~100")

self.assertRaises(GitCommandError, far_away_head.checkout)

assert active_branch == active_branch.checkout(force=True)

assert rw_repo.head.reference != far_away_head

# test reference creation

partial_ref = "sub/ref"

full_ref = "refs/%s" % partial_ref

ref = Reference.create(rw_repo, partial_ref)

assert ref.path == full_ref

assert ref.object == rw_repo.head.commit

self.assertRaises(OSError, Reference.create, rw_repo, full_ref, "HEAD~20")

# it works if it is at the same spot though and points to the same reference

assert Reference.create(rw_repo, full_ref, "HEAD").path == full_ref

Reference.delete(rw_repo, full_ref)

# recreate the reference using a full_ref

ref = Reference.create(rw_repo, full_ref)

assert ref.path == full_ref

assert ref.object == rw_repo.head.commit

# recreate using force

ref = Reference.create(rw_repo, partial_ref, "HEAD~1", force=True)

assert ref.path == full_ref

assert ref.object == rw_repo.head.commit.parents[0]

# rename it

orig_obj = ref.object

for name in ("refs/absname", "rela_name", "feature/rela_name"):

ref_new_name = ref.rename(name)

assert isinstance(ref_new_name, Reference)

assert name in ref_new_name.path

assert ref_new_name.object == orig_obj

assert ref_new_name == ref

# END for each name type

# References that don't exist trigger an error if we want to access them

self.assertRaises(ValueError, getattr, Reference(rw_repo, "refs/doesntexist"), "commit")

# exists, fail unless we force

ex_ref_path = far_away_head.path

self.assertRaises(OSError, ref.rename, ex_ref_path)

# if it points to the same commit it works

far_away_head.commit = ref.commit

ref.rename(ex_ref_path)

assert ref.path == ex_ref_path and ref.object == orig_obj

assert ref.rename(ref.path).path == ex_ref_path # rename to same name

# create symbolic refs

symref_path = "symrefs/sym"

symref = SymbolicReference.create(rw_repo, symref_path, cur_head.reference)

assert symref.path == symref_path

assert symref.reference == cur_head.reference

self.assertRaises(

OSError,

SymbolicReference.create,

rw_repo,

symref_path,

cur_head.reference.commit,

)

# it works if the new ref points to the same reference

assert SymbolicReference.create(rw_repo, symref.path, symref.reference).path == symref.path

SymbolicReference.delete(rw_repo, symref)

# would raise if the symref wouldn't have been deletedpbl

symref = SymbolicReference.create(rw_repo, symref_path, cur_head.reference)

# test symbolic references which are not at default locations like HEAD

# or FETCH_HEAD - they may also be at spots in refs of course

symbol_ref_path = "refs/symbol_ref"

symref = SymbolicReference(rw_repo, symbol_ref_path)

assert symref.path == symbol_ref_path

symbol_ref_abspath = osp.join(rw_repo.git_dir, symref.path)

# set it

symref.reference = new_head

assert symref.reference == new_head

assert osp.isfile(symbol_ref_abspath)

assert symref.commit == new_head.commit

for name in ("absname", "folder/rela_name"):

symref_new_name = symref.rename(name)

assert isinstance(symref_new_name, SymbolicReference)

assert name in symref_new_name.path

assert symref_new_name.reference == new_head

assert symref_new_name == symref

assert not symref.is_detached

# END for each ref

# create a new non-head ref just to be sure we handle it even if packed

Reference.create(rw_repo, full_ref)

# test ref listing - assure we have packed refs

rw_repo.git.pack_refs(all=True, prune=True)

heads = rw_repo.heads

assert heads

assert new_head in heads

assert active_branch in heads

assert rw_repo.tags

# we should be able to iterate all symbolic refs as well - in that case

# we should expect only symbolic references to be returned

for symref in SymbolicReference.iter_items(rw_repo):

assert not symref.is_detached

# when iterating references, we can get references and symrefs

# when deleting all refs, I'd expect them to be gone ! Even from

# the packed ones

# For this to work, we must not be on any branch

rw_repo.head.reference = rw_repo.head.commit

deleted_refs = set()

for ref in Reference.iter_items(rw_repo):

if ref.is_detached:

ref.delete(rw_repo, ref)

deleted_refs.add(ref)

# END delete ref

# END for each ref to iterate and to delete

assert deleted_refs

for ref in Reference.iter_items(rw_repo):

if ref.is_detached:

assert ref not in deleted_refs

# END for each ref

# reattach head - head will not be returned if it is not a symbolic

# ref

rw_repo.head.reference = Head.create(rw_repo, "master")

# At least the head should still exist

assert osp.isfile(osp.join(rw_repo.git_dir, "HEAD"))

refs = list(SymbolicReference.iter_items(rw_repo))

assert len(refs) == 1

# test creation of new refs from scratch

for path in ("basename", "dir/somename", "dir2/subdir/basename"):

# REFERENCES

############

fpath = Reference.to_full_path(path)

ref_fp = Reference.from_path(rw_repo, fpath)

assert not ref_fp.is_valid()

ref = Reference(rw_repo, fpath)

assert ref == ref_fp

# can be created by assigning a commit

ref.commit = rw_repo.head.commit

assert ref.is_valid()

# if the assignment raises, the ref doesn't exist

Reference.delete(ref.repo, ref.path)

assert not ref.is_valid()

self.assertRaises(ValueError, setattr, ref, "commit", "nonsense")

assert not ref.is_valid()

# I am sure I had my reason to make it a class method at first, but

# now it doesn't make so much sense anymore, want an instance method as well

# See http://byronimo.lighthouseapp.com/projects/51787-gitpython/tickets/27

Reference.delete(ref.repo, ref.path)

assert not ref.is_valid()

ref.object = rw_repo.head.commit

assert ref.is_valid()

Reference.delete(ref.repo, ref.path)

assert not ref.is_valid()

self.assertRaises(ValueError, setattr, ref, "object", "nonsense")

assert not ref.is_valid()

# END for each path

@with_rw_repo("0.1.6")

def test_tag_message(self, rw_repo):

tag_ref = TagReference.create(rw_repo, "test-message-1", message="test")

assert tag_ref.tag.message == "test"

tag_ref = TagReference.create(rw_repo, "test-message-2", logmsg="test")

assert tag_ref.tag.message == "test"

tag_ref = TagReference.create(

rw_repo,

"test-message-3",

# Logmsg should take precedence over "message".

message="test1",

logmsg="test2",

)

assert tag_ref.tag.message == "test2"

def test_dereference_recursive(self):

# for now, just test the HEAD

assert SymbolicReference.dereference_recursive(self.rorepo, "HEAD")

def test_reflog(self):

assert isinstance(self.rorepo.heads.master.log(), RefLog)

def test_refs_outside_repo(self):

# Create a file containing a valid reference outside the repository. Attempting

# to access it should raise an exception, due to it containing a parent directory

# reference ('..'). This tests for CVE-2023-41040.

git_dir = Path(self.rorepo.git_dir)

repo_parent_dir = git_dir.parent.parent

with tempfile.NamedTemporaryFile(dir=repo_parent_dir) as ref_file:

ref_file.write(b"91b464cd624fe22fbf54ea22b85a7e5cca507cfe")

ref_file.flush()

ref_file_name = Path(ref_file.name).name

self.assertRaises(BadName, self.rorepo.commit, f"../../{ref_file_name}")

def test_validity_ref_names(self):

check_ref = SymbolicReference._check_ref_name_valid

# Based on the rules specified in https://git-scm.com/docs/git-check-ref-format/#_description

# Rule 1

self.assertRaises(ValueError, check_ref, ".ref/begins/with/dot")

self.assertRaises(ValueError, check_ref, "ref/component/.begins/with/dot")

self.assertRaises(ValueError, check_ref, "ref/ends/with/a.lock")

self.assertRaises(ValueError, check_ref, "ref/component/ends.lock/with/period_lock")

# Rule 2

check_ref("valid_one_level_refname")

# Rule 3

self.assertRaises(ValueError, check_ref, "ref/contains/../double/period")

# Rule 4

for c in " ~^:":

self.assertRaises(ValueError, check_ref, f"ref/contains/invalid{c}/character")

for code in range(0, 32):

self.assertRaises(ValueError, check_ref, f"ref/contains/invalid{chr(code)}/ASCII/control_character")

self.assertRaises(ValueError, check_ref, f"ref/contains/invalid{chr(127)}/ASCII/control_character")

# Rule 5

for c in "*?[":

self.assertRaises(ValueError, check_ref, f"ref/contains/invalid{c}/character")

# Rule 6

self.assertRaises(ValueError, check_ref, "/ref/begins/with/slash")

self.assertRaises(ValueError, check_ref, "ref/ends/with/slash/")

self.assertRaises(ValueError, check_ref, "ref/contains//double/slash/")

# Rule 7

self.assertRaises(ValueError, check_ref, "ref/ends/with/dot.")

# Rule 8

self.assertRaises(ValueError, check_ref, "ref/contains@{/at_brace")

# Rule 9

self.assertRaises(ValueError, check_ref, "@")

# Rule 10

self.assertRaises(ValueError, check_ref, "ref/contain\\s/backslash")

# Valid reference name should not raise

check_ref("valid/ref/name")

GitPython/test/test_refs.py at 3.1.38 · gitpython-developers/GitPython · GitHub

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GitPython/test/test_refs.py at 3.1.38 · gitpython-developers/GitPython · GitHub

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