# This code is part of Qiskit.

#

# (C) Copyright IBM 2017, 2018.

#

# This code is licensed under the Apache License, Version 2.0. You may

# obtain a copy of this license in the LICENSE.txt file in the root directory

# of this source tree or at https://www.apache.org/licenses/LICENSE-2.0.

#

# Any modifications or derivative works of this code must retain this

# copyright notice, and modified files need to carry a notice indicating

# that they have been altered from the originals.

"""Contains Qiskit version."""

import os

import subprocess

ROOT_DIR = os.path.dirname(os.path.abspath(__file__))

def _minimal_ext_cmd(cmd):

# construct minimal environment

env = {}

for k in ["SYSTEMROOT", "PATH"]:

v = os.environ.get(k)

if v is not None:

env[k] = v

# LANGUAGE is used on win32

env["LANGUAGE"] = "C"

env["LANG"] = "C"

env["LC_ALL"] = "C"

with subprocess.Popen( # noqa: S603 We are calling git with fixed arguments

cmd,

stdout=subprocess.PIPE,

stderr=subprocess.PIPE,

env=env,

cwd=os.path.join(os.path.dirname(ROOT_DIR)),

) as proc:

stdout, stderr = proc.communicate()

if proc.returncode > 0:

error_message = stderr.strip().decode("ascii")

raise OSError(f"Command {cmd} exited with code {proc.returncode}: {error_message}")

return stdout

def git_version():

"""Get the current git head sha1."""

# Determine if we're at main

try:

out = _minimal_ext_cmd(["git", "rev-parse", "HEAD"])

git_revision = out.strip().decode("ascii")

except OSError:

git_revision = "Unknown"

return git_revision

with open(os.path.join(ROOT_DIR, "VERSION.txt")) as version_file:

VERSION = version_file.read().strip()

def get_version_info():

"""Get the full version string."""

# Adding the git rev number needs to be done inside

# write_version_py(), otherwise the import of scipy.version messes

# up the build under Python 3.

full_version = VERSION

if not os.path.exists(os.path.join(os.path.dirname(ROOT_DIR), ".git")):

return full_version

try:

release = _minimal_ext_cmd(["git", "tag", "-l", "--points-at", "HEAD"])

except Exception:

return full_version

git_revision = git_version()

if not release:

full_version += "+" + git_revision[:7]

return full_version

__version__ = get_version_info()