/usr/lib/python2.7/dist-packages/setuptools_scm/utils.py is in python-setuptools-scm 1.15.0-1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
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utils
"""
from __future__ import print_function, unicode_literals
import warnings
import sys
import shlex
import subprocess
import os
import io
import platform
DEBUG = bool(os.environ.get("SETUPTOOLS_SCM_DEBUG"))
def trace(*k):
if DEBUG:
print(*k)
sys.stdout.flush()
def ensure_stripped_str(str_or_bytes):
if isinstance(str_or_bytes, str):
return str_or_bytes.strip()
else:
return str_or_bytes.decode('utf-8', 'surogate_escape').strip()
def _always_strings(env_dict):
"""
On Windows and Python 2, environment dictionaries must be strings
and not unicode.
"""
is_windows = platform.system == 'Windows'
PY2 = sys.version_info < (3,)
if is_windows or PY2:
env_dict.update(
(key, str(value))
for (key, value) in env_dict.items()
)
return env_dict
def _popen_pipes(cmd, cwd):
return subprocess.Popen(
cmd,
stdout=subprocess.PIPE,
stderr=subprocess.PIPE,
cwd=str(cwd),
env=_always_strings(dict(
os.environ,
# try to disable i18n
LC_ALL='C',
LANGUAGE='',
HGPLAIN='1',
))
)
def do_ex(cmd, cwd='.'):
trace('cmd', repr(cmd))
if not isinstance(cmd, (list, tuple)):
cmd = shlex.split(cmd)
p = _popen_pipes(cmd, cwd)
out, err = p.communicate()
if out:
trace('out', repr(out))
if err:
trace('err', repr(err))
if p.returncode:
trace('ret', p.returncode)
return ensure_stripped_str(out), ensure_stripped_str(err), p.returncode
def do(cmd, cwd='.'):
out, err, ret = do_ex(cmd, cwd)
if ret:
print(err)
return out
def data_from_mime(path):
with io.open(path, encoding='utf-8') as fp:
content = fp.read()
trace('content', repr(content))
# the complex conditions come from reading pseudo-mime-messages
data = dict(
x.split(': ', 1)
for x in content.splitlines()
if ': ' in x)
trace('data', data)
return data
def has_command(name):
try:
p = _popen_pipes([name, 'help'], '.')
except OSError:
trace(*sys.exc_info())
res = False
else:
p.communicate()
res = not p.returncode
if not res:
warnings.warn("%r was not found" % name)
return res
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