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The GitHub Actions Pages deploy that publish-gh-pages uses ignores a CNAME file, so the input never set the custom domain: Settings → Pages does, and it already holds intro.quantecon.org. From QuantEcon/actions v0.12.0 the action warns on every deploy that still passes it (QuantEcon/actions#109, QuantEcon/actions#110). Co-Authored-By: Claude Opus 5.5 (1M context) <noreply@anthropic.com>
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Copilot review overview
🟢 Approval recommended
The change is a low-risk workflow cleanup that removes an ineffective/deprecated input and adds clarifying documentation without altering site build/deploy behavior.
Review effort: Lite
Findings: None
What changed in this PR
Removes the unused cname input from the GitHub Pages publish workflow step, aligning the workflow with how GitHub Actions Pages custom domains are actually configured (via repository Settings → Pages) and avoiding upcoming warnings from quantecon/actions/publish-gh-pages.
Changes:
- Dropped the
cname: intro.quantecon.orginput from thepublish-gh-pagesaction invocation. - Added an inline comment documenting where the custom domain is configured and why the action input has no effect.
| File | Description |
|---|---|
| .github/workflows/publish.yml | Removes the ineffective cname input and documents custom-domain configuration in repo settings. |
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publish-gh-pagesdeploys through GitHub Actions Pages, which ignores aCNAMEfile, so thecname:input has never set the custom domain. Settings → Pages does, and it holdsintro.quantecon.org(checked withgh api repos/QuantEcon/lecture-python-intro/pages:cname: intro.quantecon.org,build_type: workflow,https_enforced: true). From QuantEcon/actions v0.12.0 the action warns on every deploy that still passes the input. This removes it and leaves a comment saying where the domain lives.No effect on the published site. The only other thing the input did was write a
CNAMEfile into the build directory, so the release HTML archive stops carrying one; nothing reads it when serving.This workflow runs on a
publish*tag, so this PR's CI does not exercise it. The check is the next real publish after merge: once Dependabot moves this repo from@v0.11.1to v0.12.0, publish runs would otherwise start showing thecnamewarning; with this change they won't, and the site should still serve onintro.quantecon.org.Follow-up from QuantEcon/actions#110.
Assisted-by: Claude Code (Claude Opus 5.5)
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