Add packaging CI (#266)

This commits adds in infrastructure to push package builds to Pypi
nightly and on command. This all changes the versioning of the python
package from a single fixed value to a dynamically generated value that
includes the current date/time.

Author: boomanaiden154

.github/workflows/packaging.yml

@@ -0,0 +1,30 @@
+name: MLGO Packaging CI
+
+on:
+  workflow_dispatch:
+  schedule:
+    - cron: '0 0 * * *'
+
+jobs:
+  BuildAndPublich:
+    runs-on: ubuntu-latest
+    name: Build and Publish Package
+    steps:
+      - uses: actions/checkout@v3
+        name: Checkout repository
+      - uses: actions/setup-python@v4
+        name: Setup Python
+        with:
+          python-version: '3.10'
+          cache: 'pip'
+      - run: pip3 install build==0.1.0 setuptools==67.8.0 twine==4.0.2
+        name: Install Packaging Dependencies
+        # TODO(boomanaiden154): Switch this install step over to using pipenv
+        # once regenerating the lockfile has been fixed.
+      - run: python3 -m build
+        name: Build package
+      - run: twine upload dist/*
+        env:
+          TWINE_USERNAME: __token__
+          TWINE_PASSWORD: ${{secrets.PYPI_TOKEN}}
+        name: Publish the package

compiler_opt/package_config.py

@@ -0,0 +1,19 @@
+# coding=utf-8
+# Copyright 2020 Google LLC
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#      http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+"""Setup version information for the package."""
+
+from datetime import timezone, datetime
+
+__version__ = '0.0.1.dev' + datetime.now(tz=timezone.utc).strftime('%Y%m%d%H%M')

pyproject.toml

@@ -15,8 +15,10 @@ dependencies = [
   "tensorflow>=2.12.0",
   "dm-reverb>=0.11.0"
 ]
-version="0.0.1"
+dynamic = ["version"]
 
 [tool.setuptools.packages.find]
 include = ["compiler_opt*"]
 
+[tool.setuptools.dynamic]
+version = {attr = "compiler_opt.package_config.__version__"}