GitPython/git/test/lib/helper.py at no_devnull_open · og-python-scripts/GitPython · GitHub

Repository navigation

History

100

101

102

103

104

105

106

107

108

109

110

111

112

113

114

115

116

117

118

119

120

121

122

123

124

125

126

127

128

129

130

131

132

133

134

135

136

137

138

139

140

141

142

143

144

145

146

147

148

149

150

151

152

153

154

155

156

157

158

159

160

161

162

163

164

165

166

167

168

169

170

171

172

173

174

175

176

177

178

179

180

181

182

183

184

185

186

187

188

189

190

191

192

193

194

195

196

197

198

199

200

201

202

203

204

205

206

207

208

209

210

211

212

213

214

215

216

217

218

219

220

221

222

223

224

225

226

227

228

229

230

231

232

233

234

235

236

237

238

239

240

241

242

243

244

245

246

247

248

249

250

251

252

253

254

255

256

257

258

259

260

261

262

263

264

265

266

267

268

269

270

271

272

273

274

275

276

277

278

279

280

281

282

283

284

285

286

287

288

289

290

291

292

293

294

295

296

297

298

299

300

301

302

303

304

305

306

307

308

309

310

311

312

313

314

315

316

317

318

319

320

321

322

323

324

325

326

327

328

329

330

331

332

333

334

335

336

337

338

339

340

341

342

343

344

345

346

347

348

349

350

351

352

353

354

355

356

357

358

359

360

361

362

363

364

365

366

367

368

369

370

371

372

373

374

375

376

377

378

# helper.py

# This module is part of GitPython and is released under

# the BSD License: http://www.opensource.org/licenses/bsd-license.php

from __future__ import print_function

import contextlib

from functools import wraps

import sys

import io

import logging

import os

import tempfile

import textwrap

import time

from git.compat import string_types, is_win

from git.util import rmtree, cwd

import os.path as osp

if sys.version_info[0:2] == (2, 6):

import unittest2 as unittest

else:

import unittest

TestCase = unittest.TestCase

ospd = osp.dirname

GIT_REPO = os.environ.get("GIT_PYTHON_TEST_GIT_REPO_BASE", ospd(ospd(ospd(ospd(__file__)))))

GIT_DAEMON_PORT = os.environ.get("GIT_PYTHON_TEST_GIT_DAEMON_PORT", "19418")

__all__ = (

'fixture_path', 'fixture', 'StringProcessAdapter',

'with_rw_directory', 'with_rw_repo', 'with_rw_and_rw_remote_repo', 'TestBase', 'TestCase',

'GIT_REPO', 'GIT_DAEMON_PORT'

)

log = logging.getLogger(__name__)

#{ Routines

def fixture_path(name):

return osp.join(ospd(ospd(__file__)), 'fixtures', name)

def fixture(name):

with open(fixture_path(name), 'rb') as fd:

return fd.read()

#} END routines

#{ Adapters

class StringProcessAdapter(object):

"""Allows to use strings as Process object as returned by SubProcess.Popen.

Its tailored to work with the test system only"""

def __init__(self, input_string):

self.stdout = io.BytesIO(input_string)

self.stderr = io.BytesIO()

def wait(self):

return 0

poll = wait

#} END adapters

#{ Decorators

def with_rw_directory(func):

"""Create a temporary directory which can be written to, remove it if the

test succeeds, but leave it otherwise to aid additional debugging"""

@wraps(func)

def wrapper(self):

path = tempfile.mktemp(prefix=func.__name__)

os.mkdir(path)

keep = False

try:

return func(self, path)

except Exception:

log.info("Test %s.%s failed, output is at %r\n",

type(self).__name__, func.__name__, path)

keep = True

raise

finally:

# Need to collect here to be sure all handles have been closed. It appears

# a windows-only issue. In fact things should be deleted, as well as

# memory maps closed, once objects go out of scope. For some reason

# though this is not the case here unless we collect explicitly.

import gc

gc.collect()

if not keep:

rmtree(path)

return wrapper

def with_rw_repo(working_tree_ref, bare=False):

"""

Same as with_bare_repo, but clones the rorepo as non-bare repository, checking

out the working tree at the given working_tree_ref.

This repository type is more costly due to the working copy checkout.

To make working with relative paths easier, the cwd will be set to the working

dir of the repository.

"""

assert isinstance(working_tree_ref, string_types), "Decorator requires ref name for working tree checkout"

def argument_passer(func):

@wraps(func)

def repo_creator(self):

prefix = 'non_'

if bare:

prefix = ''

# END handle prefix

repo_dir = tempfile.mktemp(prefix="%sbare_%s" % (prefix, func.__name__))

rw_repo = self.rorepo.clone(repo_dir, shared=True, bare=bare, n=True)

rw_repo.head.commit = rw_repo.commit(working_tree_ref)

if not bare:

rw_repo.head.reference.checkout()

# END handle checkout

prev_cwd = os.getcwd()

os.chdir(rw_repo.working_dir)

try:

return func(self, rw_repo)

except:

log.info("Keeping repo after failure: %s", repo_dir)

repo_dir = None

raise

finally:

os.chdir(prev_cwd)

rw_repo.git.clear_cache()

rw_repo = None

import gc

gc.collect()

if repo_dir is not None:

rmtree(repo_dir)

# END rm test repo if possible

# END cleanup

# END rw repo creator

return repo_creator

# END argument passer

return argument_passer

@contextlib.contextmanager

def git_daemon_launched(base_path, ip, port):

from git import Git # Avoid circular deps.

gd = None

try:

if is_win:

## On MINGW-git, daemon exists in .\Git\mingw64\libexec\git-core\,

# but if invoked as 'git daemon', it detaches from parent `git` cmd,

# and then CANNOT DIE!

# So, invoke it as a single command.

## Cygwin-git has no daemon. But it can use MINGW's.

daemon_cmd = ['git-daemon',

'--enable=receive-pack',

'--listen=%s' % ip,

'--port=%s' % port,

'--base-path=%s' % base_path,

base_path]

gd = Git().execute(daemon_cmd, as_process=True)

else:

gd = Git().daemon(base_path,

enable='receive-pack',

listen=ip,

port=port,

base_path=base_path,

as_process=True)

# yes, I know ... fortunately, this is always going to work if sleep time is just large enough

time.sleep(0.5 * (1 + is_win))

except Exception as ex:

msg = textwrap.dedent("""

Launching git-daemon failed due to: %s

Probably test will fail subsequently.

BUT you may start *git-daemon* manually with this command:"

git daemon --enable=receive-pack --listen=%s --port=%s --base-path=%s %s

You may also run the daemon on a different port by passing --port=<port>"

and setting the environment variable GIT_PYTHON_TEST_GIT_DAEMON_PORT to <port>

""")

if is_win:

msg += textwrap.dedent("""

On Windows,

the `git-daemon.exe` must be in PATH.

For MINGW, look into .\Git\mingw64\libexec\git-core\), but problems with paths might appear.

CYGWIN has no daemon, but if one exists, it gets along fine (but has also paths problems).""")

log.warning(msg, ex, ip, port, base_path, base_path, exc_info=1)

yield # OK, assume daemon started manually.

else:

yield # Yield outside try, to avoid catching

finally:

if gd:

try:

log.debug("Killing git-daemon...")

gd.proc.kill()

except Exception as ex:

## Either it has died (and we're here), or it won't die, again here...

log.debug("Hidden error while Killing git-daemon: %s", ex, exc_info=1)

def with_rw_and_rw_remote_repo(working_tree_ref):

"""

Same as with_rw_repo, but also provides a writable remote repository from which the

rw_repo has been forked as well as a handle for a git-daemon that may be started to

run the remote_repo.

The remote repository was cloned as bare repository from the rorepo, wheras

the rw repo has a working tree and was cloned from the remote repository.

remote_repo has two remotes: origin and daemon_origin. One uses a local url,

the other uses a server url. The daemon setup must be done on system level

and should be an inetd service that serves tempdir.gettempdir() and all

directories in it.

The following sketch demonstrates this::

rorepo ---<bare clone>---> rw_remote_repo ---<clone>---> rw_repo

The test case needs to support the following signature::

def case(self, rw_repo, rw_daemon_repo)

This setup allows you to test push and pull scenarios and hooks nicely.

See working dir info in with_rw_repo

:note: We attempt to launch our own invocation of git-daemon, which will be shutdown at the end of the test.

"""

from git import Git, Remote # To avoid circular deps.

assert isinstance(working_tree_ref, string_types), "Decorator requires ref name for working tree checkout"

def argument_passer(func):

@wraps(func)

def remote_repo_creator(self):

rw_daemon_repo_dir = tempfile.mktemp(prefix="daemon_repo-%s-" % func.__name__)

rw_repo_dir = tempfile.mktemp(prefix="daemon_cloned_repo-%s-" % func.__name__)

rw_daemon_repo = self.rorepo.clone(rw_daemon_repo_dir, shared=True, bare=True)

# recursive alternates info ?

rw_repo = rw_daemon_repo.clone(rw_repo_dir, shared=True, bare=False, n=True)

try:

rw_repo.head.commit = working_tree_ref

rw_repo.head.reference.checkout()

# prepare for git-daemon

rw_daemon_repo.daemon_export = True

# this thing is just annoying !

with rw_daemon_repo.config_writer() as crw:

section = "daemon"

try:

crw.add_section(section)

except Exception:

pass

crw.set(section, "receivepack", True)

# Initialize the remote - first do it as local remote and pull, then

# we change the url to point to the daemon.

d_remote = Remote.create(rw_repo, "daemon_origin", rw_daemon_repo_dir)

d_remote.fetch()

base_daemon_path, rel_repo_dir = osp.split(rw_daemon_repo_dir)

remote_repo_url = Git.polish_url("git://localhost:%s/%s" % (GIT_DAEMON_PORT, rel_repo_dir))

with d_remote.config_writer as cw:

cw.set('url', remote_repo_url)

with git_daemon_launched(Git.polish_url(base_daemon_path, is_cygwin=False), # No daemon in Cygwin.

'127.0.0.1',

GIT_DAEMON_PORT):

# Try listing remotes, to diagnose whether the daemon is up.

rw_repo.git.ls_remote(d_remote)

with cwd(rw_repo.working_dir):

try:

return func(self, rw_repo, rw_daemon_repo)

except:

log.info("Keeping repos after failure: \n rw_repo_dir: %s \n rw_daemon_repo_dir: %s",

rw_repo_dir, rw_daemon_repo_dir)

rw_repo_dir = rw_daemon_repo_dir = None

raise

finally:

rw_repo.git.clear_cache()

rw_daemon_repo.git.clear_cache()

del rw_repo

del rw_daemon_repo

import gc

gc.collect()

if rw_repo_dir:

rmtree(rw_repo_dir)

if rw_daemon_repo_dir:

rmtree(rw_daemon_repo_dir)

# END cleanup

# END bare repo creator

return remote_repo_creator

# END remote repo creator

# END argument parser

return argument_passer

#} END decorators

class TestBase(TestCase):

"""

Base Class providing default functionality to all tests such as:

- Utility functions provided by the TestCase base of the unittest method such as::

self.fail("todo")

self.failUnlessRaises(...)

- Class level repository which is considered read-only as it is shared among

all test cases in your type.

Access it using::

self.rorepo # 'ro' stands for read-only

The rorepo is in fact your current project's git repo. If you refer to specific

shas for your objects, be sure you choose some that are part of the immutable portion

of the project history ( to assure tests don't fail for others ).

"""

# On py26, unittest2 has assertRaisesRegex

# On py3, unittest has assertRaisesRegex

# On py27, we use unittest, which names it differently:

if sys.version_info[0:2] == (2, 7):

assertRaisesRegex = TestCase.assertRaisesRegexp

def _small_repo_url(self):

""":return" a path to a small, clonable repository"""

from git.cmd import Git

return Git.polish_url(osp.join(self.rorepo.working_tree_dir, 'git/ext/gitdb/gitdb/ext/smmap'))

@classmethod

def setUpClass(cls):

"""

Dynamically add a read-only repository to our actual type. This way

each test type has its own repository

"""

from git import Repo

import gc

gc.collect()

cls.rorepo = Repo(GIT_REPO)

@classmethod

def tearDownClass(cls):

cls.rorepo.git.clear_cache()

cls.rorepo.git = None

def _make_file(self, rela_path, data, repo=None):

"""

Create a file at the given path relative to our repository, filled

with the given data. Returns absolute path to created file.

"""

repo = repo or self.rorepo

abs_path = osp.join(repo.working_tree_dir, rela_path)

with open(abs_path, "w") as fp:

fp.write(data)

return abs_path

GitPython/git/test/lib/helper.py at no_devnull_open · og-python-scripts/GitPython · GitHub

Repository navigation

Expand file tree

Breadcrumbs

helper.py

Latest commit

History

Breadcrumbs

helper.py

File metadata and controls