Files
dvc/tests/unit/scm/test_git.py
T
Peter Rowlands (변기호) 1e52bc94a3 git: add support for working with refspecs and stashes (#4952)
* git: add support for dulwich Stash

* git: start adding support for custom refs

* git: add Stash and helper context managers for preserving
workspace state

* scm: cleanup refs/stash and add push_refspec

* tests: add tests for git refs and stash

* fix push_refspec

* tests: add tests for git push_refspec

* scm: add git fetch-refspecs

* add test for fetch refspecs

* scm: add test for git refs containing

* remove extraneous log msgs

* fix typing issues

* stash: only try to push if workspace is dirty

* update dulwich to 0.20.14

* scm: move dulwich into scm.backend

* move stash internals to backends

* scm: move git code into dvc/scm/git/... module

* git: use ABC for BaseGitBackend

* fix rebase issue

* git: fix refspec tests on windows

- git file:// URLs need posix style paths

* git: move get_refs_containing to backend

* scm: add callback for handling diverged refs during fetch
2020-12-01 16:56:50 +09:00

249 lines
7.4 KiB
Python

import os
import pytest
from dvc.scm.base import SCMError
from tests.basic_env import TestDvcGit
class TestGit(TestDvcGit):
def test_belongs_to_scm_true_on_gitignore(self):
path = os.path.join("path", "to", ".gitignore")
self.assertTrue(self.dvc.scm.belongs_to_scm(path))
def test_belongs_to_scm_true_on_git_internal(self):
path = os.path.join("path", "to", ".git", "internal", "file")
self.assertTrue(self.dvc.scm.belongs_to_scm(path))
def test_belongs_to_scm_false(self):
path = os.path.join("some", "non-.git", "file")
self.assertFalse(self.dvc.scm.belongs_to_scm(path))
def test_walk_with_submodules(tmp_dir, scm, git_dir):
git_dir.scm_gen(
{"foo": "foo", "bar": "bar", "dir": {"data": "data"}},
commit="add dir and files",
)
scm.repo.create_submodule("submodule", "submodule", url=os.fspath(git_dir))
scm.commit("added submodule")
files = []
dirs = []
tree = scm.get_tree("HEAD")
for _, dnames, fnames in tree.walk("."):
dirs.extend(dnames)
files.extend(fnames)
# currently we don't walk through submodules
assert not dirs
assert set(files) == {".gitmodules", "submodule"}
def test_walk_onerror(tmp_dir, scm):
def onerror(exc):
raise exc
tmp_dir.scm_gen(
{"foo": "foo"}, commit="init",
)
tree = scm.get_tree("HEAD")
# path does not exist
for _ in tree.walk("dir"):
pass
with pytest.raises(OSError):
for _ in tree.walk("dir", onerror=onerror):
pass
# path is not a directory
for _ in tree.walk("foo"):
pass
with pytest.raises(OSError):
for _ in tree.walk("foo", onerror=onerror):
pass
def test_is_tracked(tmp_dir, scm):
tmp_dir.scm_gen(
{
"tracked": "tracked",
"dir": {"data": "data", "subdir": {"subdata": "subdata"}},
},
commit="add dirs and files",
)
tmp_dir.gen({"untracked": "untracked", "dir": {"untracked": "untracked"}})
# sanity check
assert (tmp_dir / "untracked").exists()
assert (tmp_dir / "tracked").exists()
assert (tmp_dir / "dir" / "untracked").exists()
assert (tmp_dir / "dir" / "data").exists()
assert (tmp_dir / "dir" / "subdir" / "subdata").exists()
assert not scm.is_tracked("untracked")
assert not scm.is_tracked(os.path.join("dir", "untracked"))
assert scm.is_tracked("tracked")
assert scm.is_tracked("dir")
assert scm.is_tracked(os.path.join("dir", "data"))
assert scm.is_tracked(os.path.join("dir", "subdir"))
assert scm.is_tracked(os.path.join("dir", "subdir", "subdata"))
def test_is_tracked_unicode(tmp_dir, scm):
tmp_dir.scm_gen("ṭṝḁḉḵḗḋ", "tracked", commit="add unicode")
tmp_dir.gen("ṳṋṭṝḁḉḵḗḋ", "untracked")
assert scm.is_tracked("ṭṝḁḉḵḗḋ")
assert not scm.is_tracked("ṳṋṭṝḁḉḵḗḋ")
def test_no_commits(tmp_dir):
from dvc.scm.git import Git
from tests.dir_helpers import git_init
git_init(".")
assert Git().no_commits
tmp_dir.gen("foo", "foo")
Git().add(["foo"])
Git().commit("foo")
assert not Git().no_commits
def test_branch_revs(tmp_dir, scm):
tmp_dir.scm_gen({"file": "0"}, commit="init")
init_rev = scm.get_rev()
expected = []
for i in range(1, 5):
tmp_dir.scm_gen({"file": f"{i}"}, commit=f"{i}")
expected.append(scm.get_rev())
for rev in scm.branch_revs("master", init_rev):
assert rev == expected.pop()
assert len(expected) == 0
def test_set_ref(tmp_dir, scm):
tmp_dir.scm_gen({"file": "0"}, commit="init")
init_rev = scm.get_rev()
tmp_dir.scm_gen({"file": "1"}, commit="commit")
commit_rev = scm.get_rev()
scm.set_ref("refs/foo/bar", init_rev)
assert (
init_rev
== (tmp_dir / ".git" / "refs" / "foo" / "bar").read_text().strip()
)
with pytest.raises(SCMError):
scm.set_ref("refs/foo/bar", commit_rev, old_ref=commit_rev)
scm.set_ref("refs/foo/bar", commit_rev, old_ref=init_rev)
assert (
commit_rev
== (tmp_dir / ".git" / "refs" / "foo" / "bar").read_text().strip()
)
scm.set_ref("refs/foo/baz", "refs/heads/master", symbolic=True)
assert (
"ref: refs/heads/master"
== (tmp_dir / ".git" / "refs" / "foo" / "baz").read_text().strip()
)
def test_get_ref(tmp_dir, scm):
tmp_dir.scm_gen({"file": "0"}, commit="init")
init_rev = scm.get_rev()
tmp_dir.gen(
{
os.path.join(".git", "refs", "foo", "bar"): init_rev,
os.path.join(
".git", "refs", "foo", "baz"
): "ref: refs/heads/master",
}
)
assert init_rev == scm.get_ref("refs/foo/bar")
assert init_rev == scm.get_ref("refs/foo/baz")
assert "refs/heads/master" == scm.get_ref("refs/foo/baz", follow=False)
assert scm.get_ref("refs/foo/qux") is None
def test_remove_ref(tmp_dir, scm):
tmp_dir.scm_gen({"file": "0"}, commit="init")
init_rev = scm.get_rev()
tmp_dir.gen(os.path.join(".git", "refs", "foo", "bar"), init_rev)
tmp_dir.scm_gen({"file": "1"}, commit="commit")
commit_rev = scm.get_rev()
with pytest.raises(SCMError):
scm.remove_ref("refs/foo/bar", old_ref=commit_rev)
scm.remove_ref("refs/foo/bar", old_ref=init_rev)
assert not (tmp_dir / ".git" / "refs" / "foo" / "bar").exists()
def test_refs_containing(tmp_dir, scm):
tmp_dir.scm_gen({"file": "0"}, commit="init")
init_rev = scm.get_rev()
tmp_dir.gen(
{
os.path.join(".git", "refs", "foo", "bar"): init_rev,
os.path.join(".git", "refs", "foo", "baz"): init_rev,
}
)
expected = {"refs/foo/bar", "refs/foo/baz", "refs/heads/master"}
assert expected == set(scm.get_refs_containing(init_rev))
def test_push_refspec(tmp_dir, scm, make_tmp_dir):
tmp_dir.scm_gen({"file": "0"}, commit="init")
init_rev = scm.get_rev()
tmp_dir.gen(
{
os.path.join(".git", "refs", "foo", "bar"): init_rev,
os.path.join(".git", "refs", "foo", "baz"): init_rev,
}
)
remote_dir = make_tmp_dir("git-remote", scm=True)
url = "file://{}".format(remote_dir.resolve().as_posix())
scm.push_refspec(url, "refs/foo/bar", "refs/foo/bar")
assert init_rev == remote_dir.scm.get_ref("refs/foo/bar")
remote_dir.scm.checkout("refs/foo/bar")
assert init_rev == remote_dir.scm.get_rev()
assert "0" == (remote_dir / "file").read_text()
scm.push_refspec(url, "refs/foo/", "refs/foo/")
assert init_rev == remote_dir.scm.get_ref("refs/foo/baz")
scm.push_refspec(url, None, "refs/foo/baz")
assert remote_dir.scm.get_ref("refs/foo/baz") is None
def test_fetch_refspecs(tmp_dir, scm, make_tmp_dir):
remote_dir = make_tmp_dir("git-remote", scm=True)
url = "file://{}".format(remote_dir.resolve().as_posix())
remote_dir.scm_gen({"file": "0"}, commit="init")
init_rev = remote_dir.scm.get_rev()
remote_dir.gen(
{
os.path.join(".git", "refs", "foo", "bar"): init_rev,
os.path.join(".git", "refs", "foo", "baz"): init_rev,
}
)
scm.fetch_refspecs(
url, ["refs/foo/bar:refs/foo/bar", "refs/foo/baz:refs/foo/baz"]
)
assert init_rev == scm.get_ref("refs/foo/bar")
assert init_rev == scm.get_ref("refs/foo/baz")
remote_dir.scm.checkout("refs/foo/bar")
assert init_rev == remote_dir.scm.get_rev()
assert "0" == (remote_dir / "file").read_text()