add "shore-conda-forge" command which has an --update-feedstock option which should come in handy when managing feedstocks for pure Python packages

package.yaml

@@ -29,6 +29,7 @@ requirements:
 entrypoints:
   console_scripts:
     - shore = shore.__main__:_entry_point
+    - shore-conda-forge = shore.tools.conda_forge:main
   shore.core.plugins:
     - core = shore.plugins.core:CorePlugin
     - install-script = shore.plugins.install_script:InstallScriptRenderer

setup.py

@@ -35,6 +35,7 @@ setuptools.setup(
   entry_points = {
     'console_scripts': [
       'shore = shore.__main__:_entry_point',
+      'shore-conda-forge = shore.tools.conda_forge:main',
     ],
     'shore.core.plugins': [
       'core = shore.plugins.core:CorePlugin',

src/shore/tools/__init__.py

@@ -0,0 +1 @@
+pass

src/shore/tools/conda_forge.py

@@ -0,0 +1,122 @@
+# -*- coding: utf8 -*-
+# Copyright (c) 2019 Niklas Rosenstein
+#
+# Permission is hereby granted, free of charge, to any person obtaining a copy
+# of this software and associated documentation files (the "Software"), to
+# deal in the Software without restriction, including without limitation the
+# rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
+# sell copies of the Software, and to permit persons to whom the Software is
+# furnished to do so, subject to the following conditions:
+#
+# The above copyright notice and this permission notice shall be included in
+# all copies or substantial portions of the Software.
+#
+# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+# FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+# AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+# LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+# FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
+# IN THE SOFTWARE.
+
+"""
+Updates a conda-forge feedstock repository by cloning it, updating the version
+details with data from PyPI and pushing it back to the feedstock. The GitHub PR
+must still be created manually after this.
+
+Todo:
+
+\b
+* Update run requirements and test imports
+"""
+
+from nr.interface import override, implements
+from shore.__main__ import _load_subject
+from termcolor import colored
+from typing import List
+
+import click
+import logging
+import nr.fs
+import re
+import requests
+import subprocess
+import sys
+
+logger = logging.getLogger(__name__)
+
+
+def _call(*args, **kwargs):
+  proc = subprocess.Popen(*args, stdout=subprocess.PIPE, stderr=subprocess.STDOUT, **kwargs)
+  stdout, _ = proc.communicate()
+  if proc.returncode != 0:
+    print(colored(stdout.decode(), 'red'))
+    sys.exit(proc.returncode)
+
+
+@click.command(help=__doc__)
+@click.option('--update-feedstock', is_flag=True, help='Update the conda-forge feedstock for the current version.')
+def main(update_feedstock):
+
+  if not update_feedstock:
+    logger.error('no operation specified')
+    sys.exit(1)
+
+  subject = _load_subject()
+
+  repo_name = 'conda-forge/{}-feedstock'.format(subject.name)
+  pypi_package_name = subject.name
+  version = str(subject.version)
+  clone_url = 'git@github.com:' + repo_name
+  branch_name = 'v' + version
+
+  s_repo_name = colored(repo_name, 'blue')
+  s_pypi_package_name = colored(pypi_package_name, 'yellow')
+  s_clone_url = colored(clone_url, 'blue')
+  s_branch_name = colored(branch_name, 'yellow')
+
+  print('Fetching PyPI record for', s_pypi_package_name, '...')
+  url = 'https://pypi.org/pypi/{}/json'.format(pypi_package_name)
+  pypi_data = requests.get(url).json()
+  if version not in pypi_data['releases']:
+    logger.error('No release on PyPI for %s v%s.', s_pypi_package_name, version)
+    sys.exit(1)
+
+  sdist = next((x for x in pypi_data['releases'][version] if x['packagetype'] == 'sdist'), None)
+  if not sdist:
+    logger.error('No sdist on PyPI for %s v%s.', s_pypi_package_name, version)
+    sys.exit(1)
+  sha256 = sdist['digests']['sha256']
+
+  print('Updating', s_repo_name, 'from PyPI package', s_pypi_package_name + ' v' + version + '.')
+
+  with nr.fs.tempdir() as tmpdir:
+
+    print('Cloning', s_clone_url, '...')
+    _call(['git', 'clone', clone_url, tmpdir.name])
+    _call(['git', 'checkout', '-b', branch_name], cwd=tmpdir.name)
+
+    recipe_path = nr.fs.join(tmpdir.name, 'recipe', 'meta.yaml')
+    with open(recipe_path) as fp:
+      recipe = fp.read()
+
+    recipe = re.sub(r'(version = ")([^"]+)"', r'\g<1>' + version + '"', recipe)
+    recipe = re.sub(r'(sha256:\s*")([^"]+)"', r'\g<1>' + sha256 + '"', recipe)
+
+    with open(recipe_path, 'w') as fp:
+      fp.write(recipe)
+
+    print()
+    subprocess.check_call(['git', '--no-pager', 'diff'], cwd=tmpdir.name)
+    print()
+
+    _call(['git', 'add', '.'], cwd=tmpdir.name)
+    _call(['git', 'commit', '-m', 'Updating recipe for {} v{}.'.format(
+      pypi_package_name, version)], cwd=tmpdir.name)
+
+    print('Pushing branch', s_branch_name, 'to', s_clone_url, '...')
+    _call(['git', 'push', 'origin', branch_name, '--set-upstream'], cwd=tmpdir.name)
+
+
+if __name__ == '__main__':
+  main()