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Upgrade PyPI upload workflow to use Trusted Publishing (#4589) #4611

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Merged
cooperlees merged 4 commits into from
Dec 11, 2025
+21 −10
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Upgrade PyPI upload workflow to use Trusted Publishing (#4589) #4611

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c35007f
Upgrade PyPI upload workflow to use Trusted Publishing
ahmed5145 Mar 12, 2025
1234419
Add changelog entry for PyPI Trusted Publishing upgrade
ahmed5145 Mar 12, 2025
6cbb1d3
Added PR number for changelog CI
ahmed5145 Mar 12, 2025
900c587
Merge branch 'main' into upgrade-pypi-trusted-publishing
cooperlees Dec 11, 2025
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29 changes: 19 additions & 10 deletions .github/workflows/pypi_upload.yml
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Expand Up @@ -10,12 +10,16 @@ on:

permissions:
contents: read
id-token: write # Required for PyPI trusted publishing

jobs:
main:
name: sdist + pure wheel
runs-on: ubuntu-latest
if: github.event_name == 'release'
environment:
name: release
url: https://pypi.org/p/black
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@woodruffw woodruffw Nov 10, 2025

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Noting for the curious: the environment itself doesn't grant any special permissions to this job -- what it does is define an environment on GitHub's side, which can then be used to further constrain the publishing workflow (e.g. by adding required manual signoffs whenever the release workflow is triggered).

The PyPI documentation has some details on that: https://docs.pypi.org/trusted-publishers/security-model/#provider-specific-considerations


steps:
- uses: actions/checkout@08c6903cd8c0fde910a37f88322edcfb5dd907a8 # v5.0.0
Expand All @@ -28,19 +32,19 @@ jobs:
python-version: "3.13"
allow-prereleases: true

- name: Install latest pip, build, twine
- name: Install latest pip, build
run: |
python -m pip install --upgrade --disable-pip-version-check pip
python -m pip install --upgrade build twine
python -m pip install --upgrade build

- name: Build wheel and source distributions
run: python -m build
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@webknjaz webknjaz Oct 26, 2025

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Please avoid building in the same job as publishing. Especially with the elevated OIDC privileges. The transitive build deps shouldn't have such level of access.

#4589 links to proper examples.

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@cooperlees cooperlees Dec 9, 2025 •
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Good call - but should we do that in a dedicated PR? We already have this setup today ...

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@woodruffw woodruffw Dec 9, 2025

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Yeah, I think there's potentially a larger CI/CD cleanup PR (or PRs) that could be done here. I can help chip away at that with some PRs 🙂

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@webknjaz webknjaz Dec 11, 2025

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@cooperlees the old setup doesn't give elevated privileges to the transitive build deps, this is quite coupled.


- if: github.event_name == 'release'
name: Upload to PyPI via Twine
env:
TWINE_PASSWORD: ${{ secrets.PYPI_TOKEN }}
run: twine upload --verbose -u '__token__' dist/*
name: Publish package distributions to PyPI
uses: pypa/gh-action-pypi-publish@release/v1
with:
verbose: true

generate_wheels_matrix:
name: generate wheels matrix
Expand Down Expand Up @@ -91,6 +95,10 @@ jobs:
name: mypyc wheels ${{ matrix.only }}
needs: generate_wheels_matrix
runs-on: ${{ matrix.os }}
if: github.event_name == 'release'
environment:
name: release
url: https://pypi.org/p/black
strategy:
fail-fast: false
matrix:
Expand All @@ -112,10 +120,11 @@ jobs:
path: ./wheelhouse/*.whl

- if: github.event_name == 'release'
name: Upload wheels to PyPI via Twine
env:
TWINE_PASSWORD: ${{ secrets.PYPI_TOKEN }}
run: pipx run twine upload --verbose -u '__token__' wheelhouse/*.whl
name: Publish package distributions to PyPI
uses: pypa/gh-action-pypi-publish@release/v1
with:
packages-dir: wheelhouse/
verbose: true

update-stable-branch:
name: Update stable branch
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2 changes: 2 additions & 0 deletions CHANGES.md
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Expand Up @@ -45,6 +45,8 @@

<!-- For example, Docker, GitHub Actions, pre-commit, editors -->

- Upgraded PyPI upload workflow to use Trusted Publishing (#4611)

### Documentation

<!-- Major changes to documentation and policies. Small docs changes
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