support freezing one Python at a time
MODIFY
repo2docker/buildpacks/conda/freeze.py
repo2docker/buildpacks/conda/freeze.py
Freeze the conda environment.yml
Run in a continuumio/miniconda3 image to ensure portability
+
+Usage:
+
+python freeze.py [3.5]
"""
from datetime import datetime
@@ -10,6 +14,7 @@ import os
import pathlib
import shutil
from subprocess import check_call
+import sys
from ruamel.yaml import YAML
@@ -39,6 +44,7 @@ def freeze(env_file, frozen_file):
Result will be stored in frozen_file
"""
+ print(f"Freezing {env_file} -> {frozen_file}")
with open(HERE / frozen_file, 'w') as f:
f.write(f"# AUTO GENERATED FROM {env_file}, DO NOT MANUALLY MODIFY\n")
@@ -73,6 +79,8 @@ def set_python(py_env_file, py):
text = f.read()
if text and 'GENERATED' not in text:
return
+
+ print(f"Regenerating {py_env_file} from {ENV_FILE}")
with open(ENV_FILE) as f:
env = yaml.load(f)
for idx, dep in enumerate(env['dependencies']):
@@ -89,7 +97,9 @@ def set_python(py_env_file, py):
if __name__ == '__main__':
- for py in ('2.7', '3.5', '3.6'):
+ # allow specifying which Pythons to update on argv
+ pys = sys.argv[1:] or ('2.7', '3.5', '3.6')
+ for py in pys:
env_file = ENV_FILE_T.format(py=py)
set_python(env_file, py)
frozen_file = os.path.splitext(env_file)[0] + '.frozen.yml'

support freezing one Python at a time