def run_command(self,
cmd,
show_stdout=True,
cwd=None,
on_returncode='raise',
command_level=logging.DEBUG,
command_desc=None,
extra_environ=None,
spinner=None):
"""
Run a VCS subcommand
This is simply a wrapper around call_subprocess that adds the VCS
command name, and checks that the VCS is available
"""
cmd = [self.name] + cmd
try:
return call_subprocess(cmd, show_stdout, cwd, on_returncode,
command_level, command_desc, extra_environ,
spinner)
except OSError as e:
# errno.ENOENT = no such file or directory
# In other words, the VCS executable isn't available
if e.errno == errno.ENOENT:
raise BadCommand('Cannot find command %r' % self.name)
else:
raise # re-raise exception if a different error occurred
def find_command(cmd, paths=None, pathext=None):
"""Searches the PATH for the given command and returns its path"""
if paths is None:
paths = os.environ.get('PATH', '').split(os.pathsep)
if isinstance(paths, string_types):
paths = [paths]
# check if there are funny path extensions for executables, e.g. Windows
if pathext is None:
pathext = get_pathext()
pathext = [ext for ext in pathext.lower().split(os.pathsep)]
# don't use extensions if the command ends with one of them
if os.path.splitext(cmd)[1].lower() in pathext:
pathext = ['']
# check if we find the command on PATH
for path in paths:
# try without extension first
cmd_path = os.path.join(path, cmd)
for ext in pathext:
# then including the extension
cmd_path_ext = cmd_path + ext
if os.path.isfile(cmd_path_ext):
return cmd_path_ext
if os.path.isfile(cmd_path):
return cmd_path
raise BadCommand('Cannot find command %r' % cmd)
def cmd(self):
if self._cmd is not None:
return self._cmd
command = find_command(self.name)
if command is None:
raise BadCommand('Cannot find command %r' % self.name)
logger.info('Found command %r at %r' % (self.name, command))
self._cmd = command
return command
def restart_in_venv(venv, base, site_packages, args):
"""
Restart this script using the interpreter in the given virtual environment
"""
if base and not os.path.isabs(venv) and not venv.startswith('~'):
base = os.path.expanduser(base)
# ensure we have an abs basepath at this point:
# a relative one makes no sense (or does it?)
if os.path.isabs(base):
venv = os.path.join(base, venv)
if venv.startswith('~'):
venv = os.path.expanduser(venv)
if not os.path.exists(venv):
try:
import virtualenv
except ImportError:
print('The virtual environment does not exist: %s' % venv)
print(
'and virtualenv is not installed, so a new environment cannot be created'
)
sys.exit(3)
print('Creating new virtualenv environment in %s' % venv)
virtualenv.logger = logger
logger.indent += 2
virtualenv.create_environment(venv, site_packages=site_packages)
if sys.platform == 'win32':
python = os.path.join(venv, 'Scripts', 'python.exe')
# check for bin directory which is used in buildouts
if not os.path.exists(python):
python = os.path.join(venv, 'bin', 'python.exe')
else:
python = os.path.join(venv, 'bin', 'python')
if not os.path.exists(python):
python = venv
if not os.path.exists(python):
raise BadCommand('Cannot find virtual environment interpreter at %s' %
python)
base = os.path.dirname(os.path.dirname(python))
file = os.path.join(os.path.dirname(__file__), 'runner.py')
if file.endswith('.pyc'):
file = file[:-1]
proc = subprocess.Popen([python, file] + args +
[base, '___VENV_RESTART___'])
proc.wait()
sys.exit(proc.returncode)
extra_environ=None):
"""
Run a VCS subcommand
This is simply a wrapper around call_subprocess that adds the VCS
command name, and checks that the VCS is available
"""
cmd = [self.name] + cmd
try:
return call_subprocess(cmd, show_stdout, filter_stdout, cwd,
raise_on_returncode, command_level,
command_desc, extra_environ)
except OSError as e:
# errno.ENOENT = no such file or directory
# In other words, the VCS executable isn't available
if e.errno == errno.ENOENT:
raise BadCommand('Cannot find command %r' % self.name)
else:
raise # re-raise exception if a different error occured
=======
>>>>>>> bde4533e29dfedadf6bcf9d451baa615bc828a59
def get_src_requirement(dist, location, find_tags):
version_control = vcs.get_backend_from_location(location)
if version_control:
try:
return version_control().get_src_requirement(dist,
location,
find_tags)
except BadCommand:
logger.warning(