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fix(biome): ignore generated/ and bump minimum version to ^2.5.3 #2239

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fix(biome): ignore generated/ and bump minimum version to ^2.5.3 #2239

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f6ec4a5
fix(biome): explicitly ignore generated/ directory in biome config
gonzoblasco Jul 15, 2026
a7d43cd
fix(biome): ignore generated/ and bump minimum version to ^2.5.3
gonzoblasco Jul 15, 2026
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18 changes: 18 additions & 0 deletions .changeset/tidy-tigers-relate.md
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Original file line number Diff line number Diff line change
@@ -0,0 +1,18 @@
---
"create-t3-app": patch
---

Fix Biome + Prisma scaffolding failure and bump minimum Biome version

- Bump `@biomejs/biome` minimum from `^2.2.5` to `^2.5.3`. The template's
`biome.jsonc` uses CSS parser options (`cssModules`, `tailwindDirectives`)
and `assist` actions (`useSortedAttributes`) introduced in Biome 2.3+.
Resolving to 2.2.5 (offline caches, locked registries) caused a config
parse error that aborted scaffolding.
- Add explicit `files.includes` with `!**/generated` to `biome.jsonc`.
Previously, excluding `generated/` relied solely on `.gitignore` via VCS
integration. When users opted out of git init, Biome could not resolve
the ignore file and linted Prisma's generated client, causing
`check:unsafe` to fail with 290+ diagnostics on machine-generated code.

Fixes #2226
2 changes: 1 addition & 1 deletion cli/src/installers/dependencyVersionMap.ts
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Original file line number Diff line number Diff line change
Expand Up @@ -39,7 +39,7 @@ export const dependencyVersionMap = {
"server-only": "^0.0.1",

// biome
"@biomejs/biome": "^2.2.5",
"@biomejs/biome": "^2.5.3",

// eslint / prettier
prettier: "^3.5.3",
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3 changes: 3 additions & 0 deletions cli/template/extras/config/biome.jsonc
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Expand Up @@ -17,6 +17,9 @@
},
},
},
"files": {
"includes": ["**", "!**/generated"]
},
"formatter": {
"enabled": true,
},
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