Files
bonobo/bonobo/commands/init.py
2018-08-11 15:29:53 +02:00

85 lines
3.0 KiB
Python

import os
from jinja2 import Environment, FileSystemLoader
from bonobo.commands import BaseCommand
from mondrian import humanizer
class InitCommand(BaseCommand):
TEMPLATES = {"bare", "default"}
TEMPLATES_PATH = os.path.join(os.path.dirname(__file__), "templates")
def add_arguments(self, parser):
parser.add_argument("filename")
parser.add_argument("--force", "-f", default=False, action="store_true")
target_group = parser.add_mutually_exclusive_group(required=False)
target_group.add_argument("--template", "-t", choices=self.TEMPLATES, default="default")
target_group.add_argument("--package", "-p", action="store_true", default=False)
def create_file_from_template(self, *, template, filename):
template_name = template
name, ext = os.path.splitext(filename)
if ext != ".py":
raise ValueError('Filenames should end with ".py".')
loader = FileSystemLoader(self.TEMPLATES_PATH)
env = Environment(loader=loader)
template = env.get_template(template_name + ".py-tpl")
with open(filename, "w+") as f:
f.write(template.render(name=name))
print(
humanizer.Success(
"Generated {} using template {!r}.".format(filename, template_name)
)
)
def create_package(self, *, filename):
_, ext = os.path.splitext(filename)
if ext != '':
raise ValueError('Package names should not have an extension.')
try:
import medikit.commands
except ImportError as exc:
raise ImportError(
"To initialize a package, you need to install medikit (pip install --upgrade medikit)."
) from exc
package_name = os.path.basename(filename)
medikit.commands.handle_init(
os.path.join(os.getcwd(), filename, "Projectfile"), name=package_name, requirements=["bonobo"]
)
self.logger.info('Generated "{}" package with medikit.'.format(package_name))
self.create_file_from_template(template="default", filename=os.path.join(filename, package_name, "__main__.py"))
print(
humanizer.Success(
'Package "{}" has been created.'.format(package_name),
'',
"Install it...",
'',
" $ `pip install --editable {}`".format(filename),
'',
"Then maybe run the example...",
'',
" $ `python -m {}`".format(package_name),
'',
"Enjoy!"
)
)
@humanizer.humanize()
def handle(self, *, template, filename, package=False, force=False):
if os.path.exists(filename) and not force:
raise FileExistsError("Target filename already exists, use --force to override.")
if package:
self.create_package(filename=filename)
else:
self.create_file_from_template(template=template, filename=filename)