#!/usr/bin/env python
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"""
===========
environment
===========
Helper functions related to environment management
"""
import re
import logging
logger = logging.getLogger(__name__)
[docs]def enumerate_packages(host, environment_name):
"""
Enumerate the packages installed in given environment.
"""
packages = []
if environment_name not in host.processing_environments:
logger.error('Environment "{}" not found'.format(environment_name))
return packages
cmd = ["conda", "list"]
container = host.create_container(environment_name, cmd)
try:
host.start(container)
except RuntimeError:
logger.exception("Failed to list packages")
return packages
status = host.wait(container)
if status != 0:
logger.error("Command error: {}".format(status))
return packages
output = host.logs(container)
package_lines = output.split("\n")
for package_line in package_lines:
information = re.split(r"\s+", package_line)
if len(information) == 4:
packages.append({"name": information[0], "version": information[1]})
host.rm(container)
return packages