mirror of
https://github.com/Stone-Red-Code/dvc.git
synced 2026-11-02 07:18:25 +01:00
117 lines
3.5 KiB
Python
117 lines
3.5 KiB
Python
import os
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import uuid
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import tempfile
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from git import Repo
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from git.exc import GitCommandNotFound
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from unittest import TestCase
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import dvc.logger as logger
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from dvc.repo import Repo as DvcRepo
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class TestDir(TestCase):
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GCP_CREDS_FILE = os.path.abspath(
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os.path.join("scripts", "ci", "gcp-creds.json")
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)
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DATA_DIR = "data_dir"
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DATA_SUB_DIR = os.path.join(DATA_DIR, "data_sub_dir")
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DATA = os.path.join(DATA_DIR, "data")
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DATA_SUB = os.path.join(DATA_SUB_DIR, "data_sub")
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DATA_CONTENTS = DATA
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DATA_SUB_CONTENTS = DATA_SUB
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FOO = "foo"
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FOO_CONTENTS = FOO
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BAR = "bar"
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# NOTE: len(FOO_CONTENTS) must be != len(BAR_CONTENTS)
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#
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# Our state database relies on file mtime and file size to determine
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# that a file has changed. Usually, mtime is enough by itself but on
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# some filesystems like APFS on macOS mtime resolution is so bad,
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# that our tests can overwrite a file in that time window without dvc
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# being able to detect that, thus causing tests to fail. Usually,
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# in tests, we replace foo with bar, so we need to make sure that when we
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# modify a file in our tests, its content length changes.
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BAR_CONTENTS = BAR + "r"
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CODE = "code.py"
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CODE_CONTENTS = (
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"import sys\nimport shutil\n"
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"shutil.copyfile(sys.argv[1], sys.argv[2])"
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)
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def _pushd(self, d):
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self._saved_dir = os.path.realpath(os.curdir)
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os.chdir(d)
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def _popd(self):
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os.chdir(self._saved_dir)
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self._saved_dir = None
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def create(self, name, contents):
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dname = os.path.dirname(name)
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if len(dname) > 0 and not os.path.isdir(dname):
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os.makedirs(dname)
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with open(name, "a") as f:
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f.write(contents)
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@staticmethod
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def mkdtemp():
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prefix = "dvc-test.{}.".format(os.getpid())
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suffix = ".{}".format(uuid.uuid4())
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return tempfile.mkdtemp(prefix=prefix, suffix=suffix)
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def setUp(self):
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self._root_dir = TestDir.mkdtemp()
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self._pushd(self._root_dir)
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self.create(self.FOO, self.FOO_CONTENTS)
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self.create(self.BAR, self.BAR_CONTENTS)
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self.create(self.CODE, self.CODE_CONTENTS)
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os.mkdir(self.DATA_DIR)
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os.mkdir(self.DATA_SUB_DIR)
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self.create(self.DATA, self.DATA_CONTENTS)
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self.create(self.DATA_SUB, self.DATA_SUB_CONTENTS)
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def tearDown(self):
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self._popd()
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class TestGit(TestDir):
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N_RETRIES = 5
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def setUp(self):
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super(TestGit, self).setUp()
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# NOTE: handles EAGAIN error on BSD systems (osx in our case).
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# Otherwise when running tests you might get this exception:
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#
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# GitCommandNotFound: Cmd('git') not found due to:
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# OSError('[Errno 35] Resource temporarily unavailable')
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retries = self.N_RETRIES
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while retries:
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try:
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self.git = Repo.init()
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except GitCommandNotFound:
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retries -= 1
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continue
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break
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self.git.index.add([self.CODE])
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self.git.index.commit("add code")
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class TestGitSubmodule(TestGit):
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def setUp(self):
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super(TestGitSubmodule, self).setUp()
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subrepo = Repo.init()
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subrepo_path = "subrepo"
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self.git.create_submodule(subrepo_path, subrepo_path, subrepo.git_dir)
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self._pushd(subrepo_path)
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class TestDvc(TestGit):
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def setUp(self):
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super(TestDvc, self).setUp()
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self.dvc = DvcRepo.init(self._root_dir)
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logger.be_verbose()
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