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install_recipe_requirements.py
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install_recipe_requirements.py
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#!/usr/bin/env python
from __future__ import print_function
import sys
import tempfile
import argparse
# This requires that you have already installed conda and pyyaml
# import conda.cli
import yaml
def parse_arguments():
parser = argparse.ArgumentParser()
parser.add_argument('recipe_file', default=None, nargs='?',
help="recipe file (use stdin if not given)")
parser.add_argument('--dry', action='store_true', default=False,
help="don't install; print to stdout instead")
parser.add_argument('--individual', action='store_true', default=False,
help="install required packages one at a time")
parser.add_argument('--env', default=None, type=str,
help="if given, an environment file will be created")
return parser.parse_args()
def read_input(filename):
"""Read data from filename if given, stdin otherwise."""
if filename is None:
file_data = sys.stdin.read()
else:
with open(filename, 'r') as f:
file_data = f.read()
return file_data
def recipe_to_requirements(recipe_yaml):
reqs = yaml.load(recipe_yaml, Loader=yaml.FullLoader)['requirements']
required_packages = set(reqs['build'] + reqs['run'])
return required_packages
if __name__ == "__main__":
# convert the conda recipe to file of dependencies
args = parse_arguments()
recipe_yaml = read_input(args.recipe_file)
required_packages = recipe_to_requirements(recipe_yaml)
req_file_str = "\n".join(required_packages)
if args.dry:
print(req_file_str)
else:
raise RuntimeError("Only dry run works")
for install in required_packages:
channels = ['conda-forge', 'omnia']
channel_str = sum([['-c', channel] for channel in channels], [])
sys.argv = ['conda', 'install'] + channel_str + [install]
# print(sys.argv)
conda.cli.main()
# with tempfile.NamedTemporaryFile() as tmp:
# tmp.write(req_file_str)
# print(tmp.name)
# sys.argv = ['conda', 'install', '--file', tmp.name]
# conda.cli.main('conda', 'install', '--file', tmp.name)