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import os
from .constants import NODE_MODULES_DIRNAME, NODE_MODULES_WORKSPACE_BUNDLE_FILENAME, PACKAGE_JSON_FILENAME
def home_dir():
"""
Stolen from ya (in the root of arcadia)
"""
# Do not trust $HOME, as it is unreliable in certain environments
# Temporarily delete os.environ["HOME"] to force reading current home directory from /etc/passwd
home_from_env = os.environ.pop("HOME", None)
try:
home_from_passwd = os.path.expanduser("~")
if os.path.isabs(home_from_passwd):
# This home dir is valid, prefer it over $HOME
return home_from_passwd
else:
# When python is built with musl (this is quire weird though),
# only users from /etc/passwd will be properly resolved,
# as musl does not have nss module for LDAP integration.
return home_from_env
finally:
if home_from_env is not None:
os.environ["HOME"] = home_from_env
def s_rooted(p):
return os.path.join("$S", p)
def b_rooted(p):
return os.path.join("$B", p)
def build_pj_path(p):
return os.path.join(p, PACKAGE_JSON_FILENAME)
def build_tmp_pj_path(p):
return os.path.join(p, "tmp." + PACKAGE_JSON_FILENAME)
def build_nm_path(p):
return os.path.join(p, NODE_MODULES_DIRNAME)
def build_nm_bundle_path(p):
return os.path.join(p, NODE_MODULES_WORKSPACE_BUNDLE_FILENAME)
def extract_package_name_from_path(p):
# if we have scope prefix then we are using the first two tokens, otherwise - only the first one
parts = p.split("/", 2)
return "/".join(parts[:2]) if p.startswith("@") else parts[0]
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