def run_env(self):
"""Run the script environment.
This basically runs the ``env.py`` script present
in the migration environment. It is called exclusively
by the command functions in :mod:`alembic.command`.
"""
util.load_python_file(self.dir, 'env.py')
def run_env(self):
"""Run the script environment.
This basically runs the ``env.py`` script present
in the migration environment. It is called exclusively
by the command functions in :mod:`alembic.command`.
"""
util.load_python_file(self.dir, 'env.py')
def staging_env(create=True, template="generic", sourceless=False):
from alembic import command, script
cfg = _testing_config()
if create:
path = os.path.join(staging_directory, 'scripts')
if os.path.exists(path):
shutil.rmtree(path)
command.init(cfg, path)
if sourceless:
try:
# do an import so that a .pyc/.pyo is generated.
util.load_python_file(path, 'env.py')
except AttributeError:
# we don't have the migration context set up yet
# so running the .env py throws this exception.
# theoretically we could be using py_compiler here to
# generate .pyc/.pyo without importing but not really
# worth it.
pass
make_sourceless(os.path.join(path, "env.py"))
sc = script.ScriptDirectory.from_config(cfg)
return sc
def staging_env(create=True, template="generic", sourceless=False):
from alembic import command, script
cfg = _testing_config()
if create:
path = os.path.join(staging_directory, 'scripts')
if os.path.exists(path):
shutil.rmtree(path)
command.init(cfg, path)
if sourceless:
try:
# do an import so that a .pyc/.pyo is generated.
util.load_python_file(path, 'env.py')
except AttributeError:
# we don't have the migration context set up yet
# so running the .env py throws this exception.
# theoretically we could be using py_compiler here to
# generate .pyc/.pyo without importing but not really
# worth it.
pass
make_sourceless(os.path.join(path, "env.py"))
sc = script.ScriptDirectory.from_config(cfg)
return sc
def _from_filename(cls, dir_, filename):
if not _rev_file.match(filename):
return None
module = util.load_python_file(dir_, filename)
if not hasattr(module, "revision"):
# attempt to get the revision id from the script name,
# this for legacy only
m = _legacy_rev.match(filename)
if not m:
raise util.CommandError(
"Could not determine revision id from filename %s. "
"Be sure the 'revision' variable is "
"declared inside the script (please see 'Upgrading "
"from Alembic 0.1 to 0.2' in the documentation)."
% filename)
else:
revision = m.group(1)
else:
revision = module.revision
return Script(module, revision, os.path.join(dir_, filename))
def _from_filename(cls, dir_, filename):
if not _rev_file.match(filename):
return None
module = util.load_python_file(dir_, filename)
if not hasattr(module, "revision"):
# attempt to get the revision id from the script name,
# this for legacy only
m = _legacy_rev.match(filename)
if not m:
raise util.CommandError(
"Could not determine revision id from filename %s. "
"Be sure the 'revision' variable is "
"declared inside the script (please see 'Upgrading "
"from Alembic 0.1 to 0.2' in the documentation)." %
filename)
else:
revision = m.group(1)
else:
revision = module.revision
return Script(module, revision, os.path.join(dir_, filename))
def run_env(self):
dir_, filename = self.env_py_location.rsplit(os.path.sep, 1)
load_python_file(dir_, filename)
def run_env(self) -> None:
dir_, filename = self.env_py_location.rsplit(os.path.sep, 1)
load_python_file(dir_, filename)
