Add preview builds #187
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Add preview builds #187
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Mrtenz
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Nov 18, 2025
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Mrtenz
approved these changes
Nov 18, 2025
![cursor[bot]](https://avatars.githubusercontent.com/in/1210556?s=60&v=4){kind=small}
| - name: Checkout and setup environment | ||
| uses: MetaMask/action-checkout-and-setup@v1 | ||
| with: | ||
| is-high-risk-environment: true |
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Bug: Incorrect branch checkout defeats preview builds.
The MetaMask/action-checkout-and-setup@v1 action likely performs a repository checkout that overwrites the PR branch checked out in the previous step (line 60). This would cause the workflow to build and publish from the default branch instead of the PR branch, defeating the purpose of preview builds. The action should either be removed or configured to skip the checkout step if that's supported.
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With these changes, you can post a comment in a PR with the content @metamaskbot publish-preview, and it will build the branch and publish it under the @metamask-previews under a special version. This works very similarly to how it works in core.
Note
Introduce a preview-build workflow triggered by PR comments, with scripts to scope/version packages for previews and README docs on using them.
/.github/workflows/publish-preview.ymlto publish preview builds on@metamaskbot publish-previewissue comments.--tag preview, and comments back with build info.scripts/prepare-preview-builds.shandscripts/prepare-preview-builds.jqto rewritepackage.jsonfor previews (scope to@metamask-previews, append-preview-<short_sha>to version) and reinstall deps.scripts/generate-preview-build-message.shto output install identifier for the preview build.README.mdwith instructions for creating, using, and updating preview builds (including Yarn/NPM override examples).Written by Cursor Bugbot for commit 804f197. This will update automatically on new commits. Configure here.