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"""
pgxnclient -- main package
"""
# Copyright (C) 2011-2021 Daniele Varrazzo
# This file is part of the PGXN client
import os
from pgxnclient.spec import Spec
from pgxnclient.utils.semver import SemVer
from pgxnclient.utils.strings import Label, Term, Identifier
__version__ = '1.3.2'
# Paths where to find the command executables.
# If relative, it's from the `pgxnclient` package directory.
# Distribution packagers may move them around if they wish.
#
# Only one of the paths should be marked as "public": it will be returned by
# pgxn help --libexec
LIBEXECDIRS = [
# public, path
(False, './libexec/'),
(True, '/usr/local/libexec/pgxnclient/'),
]
assert (
len([x for x in LIBEXECDIRS if x[0]]) == 1
), "only one libexec directory should be public"
__all__ = [
'Spec',
'SemVer',
'Label',
'Term',
'Identifier',
'get_scripts_dirs',
'get_public_script_dir',
'find_script',
]
def get_scripts_dirs():
"""
Return the absolute path of the directories containing the client scripts.
"""
return [
os.path.normpath(os.path.join(os.path.dirname(__file__), p))
for (_, p) in LIBEXECDIRS
]
def get_public_scripts_dir():
"""
Return the absolute path of the public directory for the client scripts.
"""
return [
os.path.normpath(os.path.join(os.path.dirname(__file__), p))
for (public, p) in LIBEXECDIRS
if public
][0]
def find_script(name):
"""Return the absoulute path of a pgxn script.
The script are usually found in the `LIBEXEC` dir, but any script on the
path will do (they are usually prefixed by ``pgxn-``).
Return `None` if the script is not found.
"""
path = os.environ.get('PATH', '').split(os.pathsep)
path[0:0] = get_scripts_dirs()
for p in path:
fn = os.path.join(p, name)
if os.path.isfile(fn):
return fn
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