a854b35bcf
Fixes #20328. ## What changed When `@tailwindcss/upgrade` is invoked from a subpackage of a workspace (e.g. `pnpm --filter …` or `cd packages/foo && pnpm exec upgrade`), it traverses `../../node_modules/…` and applies its v3 → v4 migration transform (`@tailwind utilities;` → `@import 'tailwindcss/utilities' layer(utilities);`) to files inside the installed `tailwindcss` package itself — a self-referential import that later detonates as an infinite CSS-resolution loop and reads like a "cache corruption" bug (matches the report in #19726 / #20328). Root cause: `globby`'s `isGitIgnored` only walks `.gitignore` files at or below its `cwd`. When invoked from a subpackage, the workspace-root `.gitignore` (which almost always lists `node_modules`) is never consulted, and `../../node_modules/…` paths come back as **not** ignored. The fix anchors `isGitIgnored` at the git repository root instead of the subpackage: - New helper: `gitRoot(cwd)` in `src/utils/git.ts` — thin wrapper over `git rev-parse --show-toplevel`. - `analyze(stylesheets, { base })` in `src/codemods/css/analyze.ts` now calls `isGitIgnored({ cwd: gitRoot(base) ?? base })`. Falls back to the previous behavior when not inside a git repository or when `git` is unavailable. ## Test Added an integration test that reproduces the exact scenario: a pnpm workspace with a subpackage that imports `tailwindcss/utilities.css`, upgrade run from the subpackage, then asserts `packages/css/node_modules/tailwindcss/utilities.css` still holds the pristine `@tailwind utilities;` directive. Verified the test fails on `main` and passes with this change. The 415 existing upgrade unit tests still pass. Two npm-related snapshot failures in `upgrade-errors.test.ts` (`half-upgraded v3 project to v4 (bun|npm)`) pre-exist this change — they're about newer npm's `npm notice run` output that isn't in the snapshots, unrelated to what this PR touches. --- Edit by @RobinMalfait: going to run on all [ci-all] so we can make sure it works on Windows as well. --------- Co-authored-by: Robin Malfait <malfait.robin@gmail.com> |
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| .. | ||
| codemods | ||
| commands/help | ||
| utils | ||
| index.test.ts | ||
| index.ts | ||
| stylesheet.ts | ||