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ci(release): thread Slack release notices under the start notice #21

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gorandodig merged 2 commits into from
Oct 30, 2026
Merged

ci(release): thread Slack release notices under the start notice #21

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7db543e
ci(release): thread Slack release notices under the start notice
gorandodig Oct 27, 2026
f53af02
ci(release): add a ✅ to the start notice on success
gorandodig Oct 29, 2026
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35 changes: 35 additions & 0 deletions .github/workflows/publish-to-pypi.yml
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Original file line number Diff line number Diff line change
Expand Up @@ -24,6 +24,9 @@ jobs:
runs-on: ubuntu-latest
permissions:
contents: read
outputs:
# The notify job replies in the start notice's thread.
slack-ts: ${{ steps.slack-start.outputs.ts }}

steps:
- uses: actions/checkout@3d3c42e5aac5ba805825da76410c181273ba90b1 # v7.0.1
Expand All @@ -34,6 +37,7 @@ jobs:

# Non-fatal: Slack being down must not block the release.
- name: Notify Slack (start)
id: slack-start
if: ${{ vars.SLACK_CHANNEL_ID != '' }}
continue-on-error: true
uses: slackapi/slack-github-action@dcb1066f776dd043e64d0e8ba94ca15cc7e1875d # v4.0.0
Expand Down Expand Up @@ -121,6 +125,13 @@ jobs:
if: ${{ !cancelled() && vars.SLACK_CHANNEL_ID != '' }}
runs-on: ubuntu-latest

env:
# Notices reply in the start notice's thread, quoted so YAML keeps the ts a
# string. Without a start notice (its post failed or never ran) this is null,
# which the Slack client drops, and they post to the channel. Failures are
# also broadcast to the channel; success stays in the thread.
THREAD_TS: ${{ needs.build.outputs.slack-ts && format('"{0}"', needs.build.outputs.slack-ts) || 'null' }}

steps:
- name: Notify Slack (checks failed)
if: ${{ needs.pre-publish-checks.result == 'failure' }}
Expand All @@ -144,6 +155,8 @@ jobs:
errors: true
payload: |
channel: ${{ vars.SLACK_CHANNEL_ID }}
thread_ts: ${{ env.THREAD_TS }}
reply_broadcast: ${{ env.THREAD_TS != 'null' }}
text: >-
*plain-parser*: Build of `${{ github.ref_name }}` FAILED :x:. Nothing was published to PyPI.
See <${{ github.server_url }}/${{ github.repository }}/actions/runs/${{ github.run_id }}|the run log>.
Expand All @@ -157,6 +170,8 @@ jobs:
errors: true
payload: |
channel: ${{ vars.SLACK_CHANNEL_ID }}
thread_ts: ${{ env.THREAD_TS }}
reply_broadcast: ${{ env.THREAD_TS != 'null' }}
text: >-
*plain-parser*: Uploading `${{ github.ref_name }}` to the GitHub Release FAILED :x:. Nothing was published to PyPI.
See <${{ github.server_url }}/${{ github.repository }}/actions/runs/${{ github.run_id }}|the run log>.
Expand All @@ -170,6 +185,8 @@ jobs:
errors: true
payload: |
channel: ${{ vars.SLACK_CHANNEL_ID }}
thread_ts: ${{ env.THREAD_TS }}
reply_broadcast: ${{ env.THREAD_TS != 'null' }}
text: >-
*plain-parser*: Publishing `${{ github.ref_name }}` to PyPI FAILED :x:.
See <${{ github.server_url }}/${{ github.repository }}/actions/runs/${{ github.run_id }}|the run log>.
Expand All @@ -195,6 +212,7 @@ jobs:
errors: true
payload: |
channel: ${{ vars.SLACK_CHANNEL_ID }}
thread_ts: ${{ env.THREAD_TS }}
text: >-
*plain-parser*: pre-release `${{ github.ref_name }}` published to PyPI :test_tube:.
Normal installs are unaffected — try it with `pip install --pre plain-parser==${{ steps.version.outputs.version }}`.
Expand All @@ -208,6 +226,23 @@ jobs:
errors: true
payload: |
channel: ${{ vars.SLACK_CHANNEL_ID }}
thread_ts: ${{ env.THREAD_TS }}
text: >-
*plain-parser*: `${{ github.ref_name }}` published to PyPI :white_check_mark:.
Install with `pip install --upgrade plain-parser`.

# Success also puts a ✅ on the start notice, so the result shows in the
# channel without another message. Needs the app's reactions:write scope.
# Non-fatal: the result is already posted, and a re-run gets already_reacted.
- name: Notify Slack (✅ on the start notice)
if: ${{ needs.publish-to-pypi.result == 'success' && env.THREAD_TS != 'null' }}
continue-on-error: true
uses: slackapi/slack-github-action@dcb1066f776dd043e64d0e8ba94ca15cc7e1875d # v4.0.0
with:
method: reactions.add
token: ${{ secrets.SLACK_BOT_TOKEN }}
errors: true
payload: |
channel: ${{ vars.SLACK_CHANNEL_ID }}
timestamp: ${{ env.THREAD_TS }}
name: white_check_mark
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