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# -*- coding: utf-8 -*-
import os
import py
from .exceptions import UsageError
from _pytest.outcomes import fail
def exists(path, ignore=EnvironmentError):
try:
return path.check()
except ignore:
return False
def getcfg(args, config=None):
"""
Search the list of arguments for a valid ini-file for pytest,
and return a tuple of (rootdir, inifile, cfg-dict).
note: config is optional and used only to issue warnings explicitly (#2891).
"""
from _pytest.deprecated import CFG_PYTEST_SECTION
inibasenames = ["pytest.ini", "tox.ini", "setup.cfg"]
args = [x for x in args if not str(x).startswith("-")]
if not args:
args = [py.path.local()]
for arg in args:
arg = py.path.local(arg)
for base in arg.parts(reverse=True):
for inibasename in inibasenames:
p = base.join(inibasename)
if exists(p):
try:
iniconfig = py.iniconfig.IniConfig(p)
except py.iniconfig.ParseError as exc:
raise UsageError(str(exc))
if (
inibasename == "setup.cfg"
and "tool:pytest" in iniconfig.sections
):
return base, p, iniconfig["tool:pytest"]
elif "pytest" in iniconfig.sections:
if inibasename == "setup.cfg" and config is not None:
fail(
CFG_PYTEST_SECTION.format(filename=inibasename),
pytrace=False,
)
return base, p, iniconfig["pytest"]
elif inibasename == "pytest.ini":
# allowed to be empty
return base, p, {}
return None, None, None
def get_common_ancestor(paths):
common_ancestor = None
for path in paths:
if not path.exists():
continue
if common_ancestor is None:
common_ancestor = path
else:
if path.relto(common_ancestor) or path == common_ancestor:
continue
elif common_ancestor.relto(path):
common_ancestor = path
else:
shared = path.common(common_ancestor)
if shared is not None:
common_ancestor = shared
if common_ancestor is None:
common_ancestor = py.path.local()
elif common_ancestor.isfile():
common_ancestor = common_ancestor.dirpath()
return common_ancestor
def get_dirs_from_args(args):
def is_option(x):
return str(x).startswith("-")
def get_file_part_from_node_id(x):
return str(x).split("::")[0]
def get_dir_from_path(path):
if path.isdir():
return path
return py.path.local(path.dirname)
# These look like paths but may not exist
possible_paths = (
py.path.local(get_file_part_from_node_id(arg))
for arg in args
if not is_option(arg)
)
return [get_dir_from_path(path) for path in possible_paths if path.exists()]
def determine_setup(inifile, args, rootdir_cmd_arg=None, config=None):
dirs = get_dirs_from_args(args)
if inifile:
iniconfig = py.iniconfig.IniConfig(inifile)
is_cfg_file = str(inifile).endswith(".cfg")
sections = ["tool:pytest", "pytest"] if is_cfg_file else ["pytest"]
for section in sections:
try:
inicfg = iniconfig[section]
if is_cfg_file and section == "pytest" and config is not None:
from _pytest.deprecated import CFG_PYTEST_SECTION
fail(
CFG_PYTEST_SECTION.format(filename=str(inifile)), pytrace=False
)
break
except KeyError:
inicfg = None
if rootdir_cmd_arg is None:
rootdir = get_common_ancestor(dirs)
else:
ancestor = get_common_ancestor(dirs)
rootdir, inifile, inicfg = getcfg([ancestor], config=config)
if rootdir is None and rootdir_cmd_arg is None:
for possible_rootdir in ancestor.parts(reverse=True):
if possible_rootdir.join("setup.py").exists():
rootdir = possible_rootdir
break
else:
if dirs != [ancestor]:
rootdir, inifile, inicfg = getcfg(dirs, config=config)
if rootdir is None:
if config is not None:
cwd = config.invocation_dir
else:
cwd = py.path.local()
rootdir = get_common_ancestor([cwd, ancestor])
is_fs_root = os.path.splitdrive(str(rootdir))[1] == "/"
if is_fs_root:
rootdir = ancestor
if rootdir_cmd_arg:
rootdir = py.path.local(os.path.expandvars(rootdir_cmd_arg))
if not rootdir.isdir():
raise UsageError(
"Directory '{}' not found. Check your '--rootdir' option.".format(
rootdir
)
)
return rootdir, inifile, inicfg or {}
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