cookiecutter-django/hooks/pre_gen_project.py
2019-09-29 21:46:34 -03:00

62 lines
2.0 KiB
Python

"""
NOTE:
the below code is to be maintained Python 2.x-compatible
as the whole Cookiecutter Django project initialization
can potentially be run in Python 2.x environment.
TODO: ? restrict Cookiecutter Django project initialization to Python 3.x environments only
"""
from __future__ import print_function
import sys
TERMINATOR = "\x1b[0m"
WARNING = "\x1b[1;33m [WARNING]: "
INFO = "\x1b[1;33m [INFO]: "
HINT = "\x1b[3;33m"
SUCCESS = "\x1b[1;32m [SUCCESS]: "
project_slug = "{{ cookiecutter.project_slug }}"
if hasattr(project_slug, "isidentifier"):
assert (
project_slug.isidentifier()
), "'{}' project slug is not a valid Python identifier.".format(project_slug)
assert (
project_slug == project_slug.lower()
), "'{}' project slug should be all lowercase".format(project_slug)
assert (
"\\" not in "{{ cookiecutter.author_name }}"
), "Don't include backslashes in author name."
if "{{ cookiecutter.use_docker }}".lower() == "n":
python_major_version = sys.version_info[0]
if python_major_version == 2:
print(
WARNING + "You're running cookiecutter under Python 2, but the generated "
"project requires Python 3.7+. Do you want to proceed (y/n)? " + TERMINATOR
)
yes_options, no_options = frozenset(["y"]), frozenset(["n"])
while True:
choice = raw_input().lower()
if choice in yes_options:
break
elif choice in no_options:
print(INFO + "Generation process stopped as requested." + TERMINATOR)
sys.exit(1)
else:
print(
HINT
+ "Please respond with {} or {}: ".format(
", ".join(
["'{}'".format(o) for o in yes_options if not o == ""]
),
", ".join(
["'{}'".format(o) for o in no_options if not o == ""]
),
)
+ TERMINATOR
)