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twine-upload: add a nudge for trusted publishing #167

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Jul 12, 2023
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twine-upload: add a nudge for trusted publishing #167

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twine-upload: add a nudge for trusted publishing
woodruffw Jul 10, 2023
e90e853
twine-upload: only nudge on PyPI-looking domains
woodruffw Jul 10, 2023
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14 changes: 14 additions & 0 deletions twine-upload.sh
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Original file line number Diff line number Diff line change
Expand Up @@ -40,6 +40,12 @@ INPUT_VERIFY_METADATA="$(get-normalized-input 'verify-metadata')"
INPUT_SKIP_EXISTING="$(get-normalized-input 'skip-existing')"
INPUT_PRINT_HASH="$(get-normalized-input 'print-hash')"

TRUSTED_PUBLISHING_NUDGE="::warning title=Upgrade to Trusted Publishing::\
Trusted Publishers allows publishing packages to PyPI from automated \
environments like GitHub Actions without needing to use username/password \
combinations or API tokens to authenticate with PyPI. Read more: \
https://docs.pypi.org/trusted-publishers"

if [[ "${INPUT_USER}" == "__token__" && -z "${INPUT_PASSWORD}" ]] ; then
# No password supplied by the user implies that we're in the OIDC flow;
# retrieve the OIDC credential and exchange it for a PyPI API token.
Expand All @@ -53,10 +59,18 @@ elif [[ "${INPUT_USER}" == '__token__' ]]; then
echo \
'::notice::Using a user-provided API token for authentication' \
"against ${INPUT_REPOSITORY_URL}"

if [[ "${INPUT_REPOSITORY_URL}" =~ pypi\.org ]]; then
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NB: This should match both test.pypi.org and pypi.org.

Technically other indices can also support trusted publishing, and the maximally correct way to handle these would be a network round-trip to the audience endpoint that we defined for this purpose.

That seemed like a relatively heavy check to add for a pretty small case, so I've left it out. But if you all prefer we have it, then I think I should probably rewrite this nudge in Python a la the oidc-exchange.py helper 馃檪

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I'm happy with this initial approach.

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@di @webknjaz I'm not an actual reviewer for this project, are you both okay with this approach to filtering indices?

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Thanks, I think this if fine for now. We do an audience lookup inside the OIDC flow, so moving it out could be helpful. But let's postpone that for now since it requires rewriting sh script that would be out of the scope here.

echo "${TRUSTED_PUBLISHING_NUDGE}"
fi
else
echo \
'::notice::Using a username + password pair for authentication' \
"against ${INPUT_REPOSITORY_URL}"

if [[ "${INPUT_REPOSITORY_URL}" =~ pypi\.org ]]; then
echo "${TRUSTED_PUBLISHING_NUDGE}"
fi
fi

if [[
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