First pass at CI and release process improvements

.github/ISSUE_TEMPLATE.md

@@ -1,3 +1,7 @@
+---
+labels: triage
+---
+
 # Required:
 ------------
 [ ] I believe this isn't a duplicate topic  

.github/labeler.yml

@@ -0,0 +1,28 @@
+# https://github.com/actions/labeler#common-examples
+
+release-candidate:
+- 'CHANGELOG.md'
+
+submodules:
+- any: ['src/deps/**']
+
+dependencies:
+- any: ['pyproject.toml']
+
+ci:
+- '.github/**'
+
+documentation:
+- any: ['docs/**']
+
+opentime:
+- any: ['src/opentime/**']
+
+'time calculations':
+- any: ['src/opentime/**']
+
+otioview:
+- any: ['src/opentimelineview/**']
+
+python-bindings:
+- any: ['src/py-opentimelineio/**']

.github/release-drafter.yml

@@ -0,0 +1,131 @@
+# https://github.com/release-drafter/release-drafter#configuration-options
+
+# The template for the body of the draft release
+template: |
+  $CHANGES
+
+# The template to use for each merged pull request
+change-template: '* $TITLE @$AUTHOR (#$NUMBER)'
+# Characters to escape in $TITLE when inserting into change-template so that they are not interpreted as Markdown format characters
+change-title-escapes: '\<*_&' # You can add #
+
+# The template for the name of the draft release
+name-template: 'v$RESOLVED_VERSION 🌈'
+# The template for the tag of the draft release
+tag-template: 'v$RESOLVED_VERSION'
+
+# # Template used calculating the next version number for the release
+# version-template: '$MAJOR.$MINOR'
+# # Adjust the $RESOLVED_VERSION variable using labels.
+# version-resolver:
+#   # every release is a whole version by default
+#   default: minor
+#   major:
+#     labels:
+#       - 'feature'
+#       - 'feat'
+#       - 'perf'
+#   minor:
+#     labels:
+#       - 'bug'
+#       - 'bugfix'
+#       - 'fix'
+#       - 'build'
+#       - 'refactor'
+#       - 'revert'
+#       - 'test'
+#   patch:
+#     labels:
+#       - 'chore'
+#       - 'ci'
+#       - 'docs'
+#       - 'style'
+
+# automatically a label into a pull request
+# https://github.com/release-drafter/release-drafter#autolabeler
+autolabeler:
+  - label: 'feat'
+    title:
+      - '/^feat.+/'
+    branch:
+      - '/feature\/.+/'
+      - '/feat\/.+/'
+  - label: 'fix'
+    title:
+      - '/^fix.+/'
+    branch:
+      - '/bugfix\/.+/'
+      - '/hotfix\/.+/'
+      - '/fix\/.+/'
+  - label: 'build'
+    title:
+      - '/^build.+/'
+    branch:
+      - '/build\/.+/'
+  - label: 'chore'
+    title:
+      - '/^chore.+/'
+    branch:
+      - '/chore\/.+/'
+  - label: 'ci'
+    title:
+      - '/^ci.+/'
+    branch:
+      - '/ci\/.+/'
+  - label: 'documentation'
+    title:
+      - '/^docs.+/'
+    branch:
+      - '/docs\/.+/'
+  - label: 'perf'
+    title:
+      - '/^perf.+/'
+    branch:
+      - '/perf\/.+/'
+  - label: 'refactor'
+    title:
+      - '/^refactor.+/'
+    branch:
+      - '/refactor\/.+/'
+  - label: 'revert'
+    title:
+      - '/^revert.+/'
+    branch:
+      - '/revert\/.+/'
+  - label: 'style'
+    title:
+      - '/^style.+/'
+    branch:
+      - '/style\/.+/'
+  - label: 'test'
+    title:
+      - '/^test.+/'
+    branch:
+      - '/test\/.+/'
+
+# Categorize pull requests using labels
+# https://github.com/release-drafter/release-drafter#categorize-pull-requests
+categories:
+  - title: '🚀 Features'
+    labels:
+      - 'feat'
+      - 'feature'
+      - 'perf'
+  - title: '📖 Documentation'
+    labels:
+      - 'documentation'
+  - title: '🐛 Bug Fixes'
+    labels:
+      - 'bug'
+      - 'bugfix'
+      - 'fix'
+  - title: '🧰 Maintenance'
+    labels:
+      - 'build'
+      - 'chore'
+      - 'dependencies'
+      - 'ci'
+      - 'refactor'
+      - 'revert'
+      - 'style'
+      - 'test'

.github/scripts/release-branch.sh

@@ -0,0 +1,15 @@
+#!/bin/sh
+set -e
+
+#
+# entry script to create a release branch in ci
+# generates a release branch named with a utc timestamp
+#
+echo 'CREATING A RELEASE BRANCH'
+
+# create a release branch locally and remotely
+# normalize utc date to YYYY-MM-DD-HH-MM
+NEW_BRANCH_NAME="release/$(date -u +%Y-%m-%d-%H-%M)"
+echo "NEW BRANCH: $NEW_BRANCH_NAME"
+git checkout -b $NEW_BRANCH_NAME
+git push origin $NEW_BRANCH_NAME

.github/workflows/pr-tools.yml

@@ -0,0 +1,35 @@
+name: Pull Request Tools
+
+on:
+  workflow_dispatch:
+  pull_request:
+    types: [
+        opened, # pr is created
+        reopened, # pr is reopened after being closed
+        synchronize, # pr is updated with new commits
+      ]
+
+concurrency:
+  group: ${{ github.workflow }}-${{ github.ref }}
+  cancel-in-progress: true
+
+jobs:
+  # label PRs based on the files that were changed
+  pr-labeler:
+    name: Label Pull Requests
+    runs-on: ubuntu-latest
+    timeout-minutes: 8
+    permissions:
+      contents: read
+      pull-requests: write
+    steps:
+      - name: Checkout Repo
+        uses: actions/checkout@v3 # https://github.com/actions/checkout/tree/main#usage
+
+      # https://github.com/actions/labeler#usage
+      - uses: actions/labeler@v4
+        with:
+          # https://github.com/actions/labeler#inputs
+          configuration-path: .github/labeler.yml
+          sync-labels: true # remove labels when matching files are reverted or no longer changed by the PR
+          dot: true # auto-include paths starting with dot (e.g.; ~/.github)

.github/workflows/publish.yml → .github/workflows/pypi-publish.yml

@@ -1,4 +1,4 @@
-name: publish
+name: Publish Release to PyPI
 
 on:
   release:

.github/workflows/release-preview.yml

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+name: Release Preview
+
+# Cancel other related workflows in-progress
+concurrency:
+  group: release-preview-${{ github.ref }}
+  cancel-in-progress: true
+
+on:
+  workflow_dispatch:
+    inputs:
+      create-new-branch:
+        description: 'Create branch'
+        type: boolean
+        required: true
+        default: true
+      notify:
+        description: 'Announce release'
+        type: boolean
+        required: true
+        default: true
+
+jobs:
+  release-branch:
+    # run if toggled on and not off an existing release branch
+    if: ${{github.event.inputs.create-new-branch && github.event.inputs.create-new-branch == 'true' && !startsWith(github.ref,'refs/heads/release/')}}
+    name: Release Branch
+    runs-on: ubuntu-latest
+    outputs:
+      branch-name: ${{ steps.get-branch-name.outputs.branch-name }}
+    steps:
+      - uses: actions/checkout@v3
+
+      - name: Create Branch
+        shell: bash
+        run: |
+          sh ./github/scripts/release-branch.sh
+
+      - name: Get New Branch Name
+        id: get-branch-name
+        shell: bash
+        run: |
+          echo ::set-output name=branch-name::$(git rev-parse --abbrev-ref HEAD)
+
+  release-preview:
+    needs: [release-branch]
+    if: ${{ always() }}
+    name: Release Preview
+    runs-on: ubuntu-latest
+    steps:
+      - name: Draft or Update a Release
+        # https://github.com/release-drafter/release-drafter
+        uses: release-drafter/release-drafter@v5
+        id: draft-release
+        with:
+          publish: false
+          commitish: ${{needs.release-branch.outputs.branch-name || github.ref_name}}
+        env:
+          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+
+      - name: Convert Github markdown to Slack markdown syntax
+        # https://github.com/LoveToKnow/slackify-markdown-action
+        uses: LoveToKnow/[email protected]
+        if: ${{ github.event.inputs.notify == 'true' }}
+        id: slack-markdown
+        with:
+          text: |
+            [Release Notes](https://github.com/AcademySoftwareFoundation/OpenTimelineIO/releases/tag/${{ steps.draft-release.outputs.tag_name }})
+
+            ${{ steps.draft-release.outputs.body }}
+
+      - name: 'Slack Notification to ##opentimelineio'
+        # https://github.com/rtCamp/action-slack-notify
+        uses: rtCamp/action-slack-notify@v2
+        if: ${{ github.event.inputs.notify == 'true' }}
+        env:
+          SLACK_WEBHOOK: ${{ secrets.SLACK_WEBHOOK_RELEASES_URL }}
+          SLACK_ICON: https://avatars.githubusercontent.com/u/40807682?s=512&v=4
+          SLACK_LINK_NAMES: true
+          SLACK_USERNAME: 'OTIO Release Preview'
+          SLACK_CHANNEL: 'opentimelineio'
+          SLACK_COLOR: '#5b53ff'
+          SLACK_TITLE: 'Release Preview for ${{ github.repository }}'
+          SLACK_MESSAGE: |
+            ${{ steps.slack-markdown.outputs.text }}
+          SLACK_FOOTER: |
+            Release Preview of ${{ steps.draft-release.outputs.name }}
+          MSG_MINIMAL: commit

.github/workflows/release-publish.yml

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+name: Publish Release
+# This workflow is called when a new release is published in GitHub.
+
+
+# Cancel other related workflows in-progress
+concurrency:
+  group: release-publish-${{ github.ref }}
+  cancel-in-progress: true
+
+on:
+  release:
+    types: [published]
+
+jobs:
+  load-repo:
+    name: Download GitHub repo
+    runs-on: ubuntu-latest
+    timeout-minutes: 5
+    steps:
+      - uses: actions/checkout@v3
+
+  announce-release:
+    runs-on: ubuntu-latest
+    name: Announce successful release
+    needs: [load-repo]
+    steps:
+      - name: Convert markdown to slack markdown
+        # https://github.com/LoveToKnow/slackify-markdown-action
+        uses: LoveToKnow/[email protected]
+        id: slack-markdown
+        with:
+          text: |
+            ${{ github.ref_name }} New version of OTIO released!.
+            [Release Notes](https://github.com/AcademySoftwareFoundation/OpenTimelineIO/releases/tag/${{ github.ref_name }})
+
+      - name: 'Slack Notification to #opentimelineio'
+        # https://github.com/rtCamp/action-slack-notify
+        uses: rtCamp/action-slack-notify@v2
+        env:
+          SLACK_WEBHOOK: ${{ secrets.SLACK_WEBHOOK_RELEASES_URL }}
+          SLACK_ICON: https://avatars.githubusercontent.com/u/40807682?s=512&v=4
+          SLACK_LINK_NAMES: true
+          SLACK_USERNAME: 'OTIO Release Bot'
+          SLACK_CHANNEL: 'opentimelineio'
+          SLACK_COLOR: '#5b53ff'
+          SLACK_TITLE: 'New OTIO version released!'
+          SLACK_MESSAGE: |
+            ${{ steps.slack-markdown.outputs.text }}
+          SLACK_FOOTER: |
+            Release Published: ${{ github.ref_name }}
+          MSG_MINIMAL: true