ci: Automated release workflow

To enable automated releases, this:

 - reformats the change log to match what release-please wants/needs
 - rolls back version numbers to match the latest release and tags them, so release-please can update them based on conventional commits
 - fixes a warning in binaries/setup.py about missing long_description_content_type
 - adds config file and manifest for release-please, including an explicit sha1 for the latest release to prevent it from going back too far in commit logs (this line will get removed after the next release)

.github/workflows/release-please.yaml

@@ -0,0 +1,88 @@
+name: Release
+
+on:
+  push:
+    branches:
+      - main
+
+jobs:
+  release:
+    runs-on: ubuntu-latest
+    outputs:
+      release_created: ${{ steps.release.outputs.release_created }}
+      tag_name: ${{ steps.release.outputs.tag_name }}
+      patch: ${{ steps.release.outputs.patch }}
+
+    steps:
+      # Create/update release PR
+      - uses: googleapis/release-please-action@v4
+        id: release
+        with:
+          # Make sure we create the PR against the correct branch.
+          target-branch: ${{ github.ref_name }}
+          # Use a special shaka-bot access token for releases.
+          token: ${{ secrets.RELEASE_PLEASE_TOKEN }}
+          # See also settings in these files:
+          manifest-file: .release-please-manifest.json
+          config-file: .release-please-config.json
+
+  # The jobs below are all conditional on a release having been created by
+  # someone merging the release PR.  They all run in parallel.
+
+  pypi:
+    runs-on: ubuntu-latest
+    needs: release
+    if: needs.release.outputs.release_created
+    permissions:
+      id-token: write  # IMPORTANT: this permission is mandatory for trusted publishing
+    steps:
+      - uses: actions/checkout@v4
+        with:
+          fetch-depth: 0
+          persist-credentials: false
+
+      - name: Set Python version
+        uses: actions/setup-python@v5
+        with:
+          python-version: 3.13
+
+      - name: Install Python deps
+        run: |
+          python3 -m pip install -r requirements.txt
+          python3 -m pip install -r optional_requirements.txt
+
+      - name: Build modules
+        run: |
+          # Clean everything.  Doesn't matter in a workflow, but if you're
+          # running this locally...
+          rm -rf build dist binaries/dist
+          rm -rf *.egg-info binaries/*.egg-info
+          rm -f binaries/streamer_binaries/{ffmpeg-*,ffprobe-*,packager-*}
+          # Build everything.
+          python3 setup.py sdist bdist_wheel
+          python3 binaries/build_wheels.py
+          # Put all the build outputs into one folder for upload together.
+          cp binaries/dist/* dist/
+
+      - name: Check modules
+        run: |
+          python3 -m twine check --strict dist/*
+
+      - name: Attach modules to the release
+        uses: svenstaro/upload-release-action@84f3aed82331a2c0c665cf8e9707228f766aba9d
+        with:
+          repo_token: ${{ secrets.RELEASE_PLEASE_TOKEN }}
+          tag: ${{ needs.release.outputs.tag_name }}
+          file: dist/*
+          file_glob: true
+          overwrite: true
+
+      # This uses PyPi's trusted publishing config.  It can see and verify that
+      # the publication request comes from this repo and this exact workflow,
+      # and this repo and workflow are allow-listed for publication without a
+      # token.
+      - name: Publish modules
+        uses: pypa/gh-action-pypi-publish@release/v1
+        with:
+          verbose: true
+          attestations: true

.release-please-config.json

@@ -0,0 +1,15 @@
+{
+  "last-release-sha": "a86da1b96c0134ea1e8c2f4f1d33520efe7aa73c",
+  "packages": {
+    ".": {
+      "include-component-in-tag": false,
+      "include-v-in-tag": true,
+      "component": "",
+      "extra-files": [
+        "streamer/__init__.py",
+        "binaries/streamer_binaries/__init__.py"
+      ],
+      "release-type": "python"
+    }
+  }
+}

.release-please-manifest.json

@@ -0,0 +1,3 @@
+{
+  ".": "0.5.1"
+}

CHANGELOG.md

@@ -1,10 +1,12 @@
-## 0.5.1 (2021-10-14)
+# Changelog
+
+## [0.5.1](https://github.com/shaka-project/shaka-streamer/compare/v0.5.0...v0.5.1) (2021-10-14)
 
  - Require Shaka Packager v2.6.1+, to fix segfault in Linux binaries
    (https://github.com/shaka-project/shaka-packager/issues/996)
 
 
-## 0.5.0 (2021-10-01)
+## [0.5.0](https://github.com/shaka-project/shaka-streamer/compare/v0.4.0...v0.5.0) (2021-10-01)
 
  - Command-line argument style changed (dashes instead of underscores)
  - Multi period support for DASH
@@ -39,7 +41,7 @@
    (https://github.com/shaka-project/shaka-streamer/pull/95)
 
 
-## 0.4.0 (2021-08-26)
+## [0.4.0](https://github.com/shaka-project/shaka-streamer/compare/v0.3.0...v0.4.0) (2021-08-26)
 
  - Fix shutdown of cloud upload
  - Improve the formatting of minimum version errors
@@ -94,7 +96,7 @@
  - Fix accidental live-type DASH output in VOD mode
 
 
-## 0.3.0 (2019-10-18)
+## [0.3.0](https://github.com/shaka-project/shaka-streamer/compare/v0.2.0...v0.3.0) (2019-10-18)
 
  - Added autodetection of frame rate, resolution, interlacing, track numbers
  - Added support for custom resolutions and bitrates
@@ -125,7 +127,7 @@
    (https://github.com/shaka-project/shaka-streamer/issues/36)
 
 
-## 0.2.0 (2019-10-14)
+## [0.2.0](https://github.com/shaka-project/shaka-streamer/compare/v0.1.0...v0.2.0) (2019-10-14)
 
  - Comprehensive docs now on GitHub Pages: https://shaka-project.github.io/shaka-streamer/
    (https://github.com/shaka-project/shaka-streamer/issues/22)

binaries/setup.py

@@ -29,6 +29,7 @@
   description='A package containing FFmpeg, FFprobe, and Shaka Packager static builds.',
   long_description=('An auxiliary package that provides platform-specific'
                     ' binaries used by Shaka Streamer.'),
+  long_description_content_type='text/plain',
   url='https://github.com/shaka-project/shaka-streamer/tree/main/binaries',
   packages=[streamer_binaries.__name__,],
   classifiers=[

binaries/streamer_binaries/__init__.py

@@ -1,7 +1,7 @@
 import os
 import platform
 
-__version__ = '0.6.0'
+__version__ = '0.5.1'  # x-release-please-version
 
 
 # Get the directory path where this __init__.py file resides.

streamer/__init__.py

@@ -1,3 +1,3 @@
-__version__ = '0.6.0'
+__version__ = '0.5.1'  # x-release-please-version
 
 from . import controller_node