chore: migrate from yarn to pnpm by jmfrancois · Pull Request #5849 · Talend/ui

jmfrancois · 2026-09-04T15:12:16Z

Summary

Migrate the monorepo from Yarn Classic to pnpm (isolated/strict node_modules), converting root config, all tools/scripts-* CLIs that shelled out to yarn, and CI workflows.
Delete tools/scripts-config-react-webpack and tools/scripts-config-cdn (dead, zero real consumers) instead of patching their yarn-hoisting-coupled code, in line with the ongoing webpack→vite / jest→vitest migration.
Fix phantom-dependency issues that only worked under yarn's flat hoist (scripts-core's prettier/stylelint resolution, per-package resolutions in packages/components) and a critical one caught during validation: internal @talend/* deps don't use the workspace: protocol, so plain pnpm install silently resolved them from the npm registry instead of linking local workspace code — fixed via linkWorkspacePackages: true.
Retire .github/workflows/yarn-deduplicate.yml (pnpm dedupes natively).
Drop @talend/scripts-publish-local entirely (unused local-registry helper, no consumers) and its pending changeset.

Test plan

pnpm install completes clean with no phantom-dependency errors
pnpm build:lib succeeds across all 26 workspace packages
talend-scripts extends resolves all 5 generated config branches (prettier/stylelint/eslint/babel/typescript) end-to-end
Rewritten talend-yarn-workspace CLI runs correctly against pnpm -r run --if-present
ESLint config loads and runs under pnpm (only pre-existing lint debt surfaced, no resolution crashes)
CI green on this PR (workflows converted but not yet run)

🤖 Generated with Claude Code

Switches package management from Yarn Classic to pnpm (isolated linker), retiring the webpack/CDN tooling that carried yarn-hoisting assumptions (scripts-config-react-webpack, scripts-config-cdn) instead of patching them, in line with the ongoing webpack->vite and jest->vitest migration. - Delete scripts-config-react-webpack and scripts-config-cdn (dead, no real consumers; held every yarn-hoisting-coupled hack found). - Remove dead jest branch in scripts-core/extends.js and orphaned jest config block in packages/http. - Declare scripts-config-prettier/stylelint as real deps of scripts-core (previously phantom deps that only worked via yarn's flat hoist). - Rewrite scripts-yarn-workspace to shell out to `pnpm -r run --if-present` instead of parsing `yarn workspaces info`. - Swap scripts-publish-local's yarn CLI calls (registry/cache config) to pnpm equivalents. - Root package.json/pnpm-workspace.yaml: packageManager, workspaces, resolutions -> overrides (including a stray per-package resolutions block pnpm doesn't read), script invocations, linkWorkspacePackages (needed since internal @talend/* deps don't use the workspace: protocol, so plain pnpm install silently resolved from the registry instead of linking local packages). - Convert yarn.lock to pnpm-lock.yaml, update CI (composite setup action + all workflows), retire yarn-deduplicate.yml (pnpm dedupes natively). Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>

changeset-bot · 2026-09-04T15:12:21Z

🦋 Changeset detected

Latest commit: 8d0614e

The changes in this PR will be included in the next version bump.

This PR includes changesets to release 3 packages

Name	Type
@talend/scripts-core	Minor
@talend/react-components	Patch
@talend/http	Patch

Not sure what this means? Click here to learn what changesets are.

Click here if you're a maintainer who wants to add another changeset to this PR

Per-package changesets for the packages whose behavior actually changed in the yarn->pnpm migration: react-components (build script + dropped resolutions), http (dropped orphaned jest config), scripts-core (real deps instead of phantom hoisted ones, dropped jest-config generation), scripts-yarn-workspace (rewritten to shell out to pnpm, now requires pnpm), scripts-publish-local (registry/cache setup now uses pnpm, now requires pnpm). scripts-config-cdn and scripts-config-react-webpack are deleted entirely, so changesets can't target them (not in the workspace); no changeset added for those two. Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>

The package had already been rewritten to shell out to pnpm during the yarn->pnpm migration, making it a thin wrapper around `pnpm -r run <script> --if-present --workspace-concurrency=1`. Inline that pnpm command directly into the two root scripts that used it (vitest:update, test:cron) and remove the now-unused package, its devDependency, and the superseded changeset that documented its rewrite. Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>

Unused local-registry helper superseded by pnpm equivalents; remove package and its pending changeset. Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>

GITHUB_TOKEN can't read private cross-repo packages. @talend/daikon-tql-client is still private, so pnpm's cold install hits a 403 that yarn's warm cache was masking. Revert the NPM_TOKEN input (and NODE_AUTH_TOKEN env) back to secrets.NPM_TOKEN, as it was before ad59239. Requires the NPM_TOKEN repo secret (a PAT with read:packages) to be recreated in repo settings. Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>

github-actions · 2026-09-18T12:00:42Z

Title	Statements	Branches	Functions
cmf	89.43% (1244/1391)	83.46% (626/750)	89.76% (351/391)
cmf-cqrs	86.33% (158/183)	71.42% (60/84)	82.45% (47/57)
cmf-router	69.23% (135/195)	55.71% (78/140)	56.81% (25/44)
components	90.77% (5577/6144)	82.41% (3228/3917)	88.21% (1400/1587)
containers	83.42% (1389/1665)	75.16% (702/934)	75% (327/436)
dataviz	85.93% (330/384)	65.41% (157/240)	75.94% (120/158)
design-system	66.96% (1042/1556)	51.95% (558/1074)	53.92% (220/408)
faceted-search	85.33% (640/750)	80% (292/365)	82.24% (227/276)
flow-designer	72.34% (675/933)	77.71% (415/534)	71.02% (201/283)
forms	86.22% (1652/1916)	76.71% (939/1224)	84.77% (462/545)
http	100% (85/85)	98.07% (51/52)	100% (34/34)
sagas	92.3% (24/26)	66.66% (4/6)	50% (2/4)
stepper	81.91% (154/188)	61.29% (57/93)	81.25% (39/48)
utils	100% (73/73)	90.9% (10/11)	100% (24/24)

Copilot

🟡 Changes recommended

The updated packages/cmf/vitest.config.ts include patterns drop the existing __tests__ suite, and PR workflows may fail for forked PRs due to reliance on secrets.NPM_TOKEN.

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Pull request overview

This PR migrates the Talend/UI monorepo from Yarn Classic workspaces to pnpm (isolated/strict node_modules) and updates internal tooling, docs, and CI workflows accordingly, while removing Yarn-specific helpers and dead configuration packages.

Changes:

Replace Yarn-based root and workspace scripts with pnpm equivalents, introduce pnpm-workspace.yaml, and pin pnpm via packageManager / .tool-versions.
Update CI workflows and the shared setup-node action to install/cache pnpm and to run installs/builds with pnpm.
Cleanup/migration fixes: remove the @talend/scripts-yarn-workspace package, drop legacy Jest config generation and orphaned Jest config blocks, and update i18n extraction configs to use pnpm.

File summaries

File	Description
tools/scripts-yarn-workspace/src/workspace-run.js	Removes Yarn workspace run implementation (package deleted as part of pnpm migration).
tools/scripts-yarn-workspace/src/run.js	Removes Yarn spawn runner utility (package deleted).
tools/scripts-yarn-workspace/src/index.js	Removes Yarn-workspace CLI entrypoint (package deleted).
tools/scripts-yarn-workspace/src/consume.js	Removes command consumer for Yarn workspace runner (package deleted).
tools/scripts-yarn-workspace/README.md	Removes docs for Yarn workspace helper (package deleted).
tools/scripts-yarn-workspace/package.json	Removes the Yarn-workspace tool package definition (package deleted).
tools/scripts-yarn-workspace/eslint.config.mjs	Removes lint config for deleted Yarn-workspace tool.
tools/scripts-yarn-workspace/CHANGELOG.md	Removes changelog for deleted Yarn-workspace tool.
tools/scripts-core/src/scripts/extends.js	Stops generating Jest config in `extends` (aligns with Jest phase-out and pnpm constraints).
tools/scripts-core/package.json	Adds explicit deps for prettier/stylelint configs to avoid pnpm phantom-dep resolution issues.
tools/scripts-core/doc/migration.md	Updates migration docs to pnpm commands.
tools/scripts-core/doc/getting-started.md	Updates install docs to pnpm and removes webpack-react config mention.
tools/scripts-config-storybook-lib/README.md	Updates installation command example to pnpm.
tools/scripts-config-eslint/README.md	Updates usage example from yarn to pnpm.
tools/scripts-cmf/README.md	Updates command examples and JSON formatting in docs.
pnpm-workspace.yaml	Adds pnpm workspace definition and workspace-level overrides/settings.
packages/stepper/talend-i18n.json	Switches i18n extraction method from yarn to pnpm.
packages/icons/vite.config.ts	Prevents bundling Node builtins by marking them as Rollup externals for library build.
packages/http/package.json	Removes orphaned Jest configuration block.
packages/forms/talend-i18n.json	Switches i18n extraction method from yarn to pnpm.
packages/faceted-search/talend-i18n.json	Switches i18n extraction method from yarn to pnpm.
packages/design-system/talend-i18n.json	Switches i18n extraction method from yarn to pnpm.
packages/dataviz/talend-i18n.json	Switches i18n extraction method from yarn to pnpm.
packages/containers/talend-i18n.json	Switches i18n extraction method from yarn to pnpm.
packages/components/talend-i18n.json	Switches i18n extraction method from yarn to pnpm.
packages/components/package.json	Updates internal script invocation to pnpm and removes Yarn `resolutions`.
packages/cmf/vitest.config.ts	Adjusts Vitest include/exclude patterns (currently risks excluding existing tests).
package.json	Switches root scripts to pnpm, removes Yarn workspace config/resolutions, pins pnpm via `packageManager`.
.tool-versions	Pins pnpm (and Node) versions for asdf/tooling.
.github/workflows/yarn-deduplicate.yml	Removes Yarn-only deduplication workflow.
.github/workflows/visual-testing.yml	Migrates workflow install/build steps to pnpm and updates auth token source.
.github/workflows/pre-release.yml	Migrates pre-release workflow to pnpm (install/build/changesets).
.github/workflows/pr-test.yml	Migrates PR test workflow to pnpm and updates token usage.
.github/workflows/pr-lint.yml	Migrates PR lint workflow to pnpm and updates token usage.
.github/workflows/pr-demo.yml	Migrates PR demo workflow to pnpm and updates token usage.
.github/workflows/icons.yml	Updates setup-node invocation token source.
.github/workflows/demo.yml	Migrates demo workflow install/build steps to pnpm and updates token usage.
.github/workflows/changeset.yml	Migrates release workflow to pnpm and updates auth token source for install/publish.
.github/actions/setup-node/action.yml	Installs pnpm and caches pnpm store (replaces Yarn caching).
.changeset/warm-llamas-hoist.md	Records patch change for removing dead Jest config from `@talend/http`.
.changeset/six-otters-migrate.md	Records patch change for `@talend/react-components` script + removal of per-package resolutions.
.changeset/quiet-goats-pnpm.md	Records `@talend/scripts-core` change for explicit config deps + dropping Jest config generation.

Review details

Files reviewed: 42/44 changed files
Comments generated: 5
Review effort level: Lite

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        uses: ./.github/actions/setup-node
        with:
-          NPM_TOKEN: ${{ github.token }}
+          NPM_TOKEN: ${{ secrets.NPM_TOKEN }}


        uses: ./.github/actions/setup-node
        with:
-          NPM_TOKEN: ${{ github.token }}
+          NPM_TOKEN: ${{ secrets.NPM_TOKEN }}


        uses: ./.github/actions/setup-node
        with:
-          NPM_TOKEN: ${{ github.token }}
+          NPM_TOKEN: ${{ secrets.NPM_TOKEN }}


        uses: ./.github/actions/setup-node
        with:
-          NPM_TOKEN: ${{ github.token }}
+          NPM_TOKEN: ${{ secrets.NPM_TOKEN }}


jmfrancois and others added 3 commits September 4, 2026 17:37

chore: drop @talend/scripts-publish-local package

3686919

Unused local-registry helper superseded by pnpm equivalents; remove package and its pending changeset. Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>

Copilot started work on behalf of jmfrancois September 4, 2026 16:06 View session

Copilot finished work on behalf of jmfrancois September 4, 2026 16:07

Merge branch 'master' into chore/migrate-yarn-to-pnpm

2e68fb7

jmfrancois had a problem deploying to pull_request_unsafe September 4, 2026 16:10 — with GitHub Actions Failure

chore: update lock file

6c9e4c3

jmfrancois had a problem deploying to pull_request_unsafe September 7, 2026 07:08 — with GitHub Actions Failure

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jmfrancois mentioned this pull request Sep 9, 2026

chore(deps): bump changesets/action from 1.9.0 to 2.1.1 #5851

Closed

Merge branch 'master' into chore/migrate-yarn-to-pnpm

4d24f0b

jmfrancois had a problem deploying to pull_request_unsafe September 9, 2026 13:53 — with GitHub Actions Failure

jmfrancois added 2 commits September 9, 2026 15:53

chore: pnpm i update lock file

5ccd3b6

chore: dedupe

32df3f7

jmfrancois had a problem deploying to pull_request_unsafe September 9, 2026 13:54 — with GitHub Actions Failure

fix: import

a1fa4a4

fix(containers): add missing devdeps

f5473d7

jmfrancois deployed to pull_request_unsafe September 18, 2026 11:58 — with GitHub Actions Active

Merge branch 'master' into chore/migrate-yarn-to-pnpm

fdf7b40

jmfrancois deployed to pull_request_unsafe September 18, 2026 12:06 — with GitHub Actions Active

jmfrancois marked this pull request as ready for review September 18, 2026 12:09

jmfrancois requested a lite review from Copilot September 18, 2026 12:09

Copilot started reviewing on behalf of jmfrancois September 18, 2026 12:10 View session

Talend deleted a comment from Copilot AI Sep 18, 2026

Copilot AI reviewed Sep 18, 2026

View reviewed changes

fix: test config

84412aa

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chore: review

702be5a

jmfrancois deployed to pull_request_unsafe September 18, 2026 12:40 — with GitHub Actions Active

jmfrancois deployed to pull_request_unsafe September 18, 2026 12:41 — with GitHub Actions Active

Merge branch 'master' into chore/migrate-yarn-to-pnpm

3601343

jmfrancois deployed to pull_request_unsafe September 18, 2026 13:03 — with GitHub Actions Active

chore: move to workspace range syntax

8d0614e

jmfrancois deployed to pull_request_unsafe September 18, 2026 15:46 — with GitHub Actions Active

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chore: migrate from yarn to pnpm - #5849

chore: migrate from yarn to pnpm#5849
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