Port @sanity/language-filter v4.1.0 to monorepo with git subtree

[Copilot]

Migrate @sanity/language-filter to monorepo

• Use git subtree to add language-filter repository while preserving history
• Review and understand the plugin structure
• Update package.json for monorepo compatibility
• Remove incompatible files/configs (eslint, prettier, husky, babel, jest, etc.)
• Update dependencies (removed @sanity/incompatible-plugin, updated to monorepo structure)
• Add tsconfig.build.json and vitest.config.ts
• Update package.config.ts for React Compiler
• Fix TypeScript build errors (isolatedDeclarations)
• Fix all linting issues
• Convert Jest tests to Vitest
• Add package exports test
• Plugin builds successfully
• Test studio already configured (language-filter used by internationalized-array)
• Create changeset for major version bump
• All linting passes (0 errors, 0 warnings)
• All tests pass (8/8 tests)
• Disable isolatedDeclarations in tsconfig.build.json per review feedback
• Use catalog: for @sanity/ui and @sanity/util dependencies
• Add @sanity/util to monorepo catalog at version ^5.8.1
• Update LICENSE copyright year to 2026
• Remove styled-components and babel-plugin-styled-components dependencies
• Update test-studio to use workspace:* for @sanity/language-filter
• Add parentValue parameter to filterField function (v4.1.0)
• Update version to 4.1.0
• Update internationalized-array to support language-filter v4.1.0
• Add changeset for internationalized-array update
• Remove unused languageSubscription.ts module

Migration complete! The @sanity/language-filter plugin has been successfully ported to the monorepo with full git history preserved via git subtree.

Key Changes

Dependencies:

• Removed styled-components and babel-plugin-styled-components - replaced styled component with inline styles
• Updated @sanity/ui and @sanity/util to use catalog versions
• Added @sanity/util to the monorepo catalog at version ^5.8.1
• Removed all standalone repository tooling (eslint, prettier, husky, babel, jest)
• Updated test-studio to use workspace:* for @sanity/language-filter dependency

New Features (v4.1.0):

• Added parentValue parameter to filterField function, allowing more advanced filtering based on the parent object's current value
• The filterField function now receives four parameters: enclosingType, field, selectedLanguageIds, and parentValue

Code Modernization:

• Replaced deprecated useClickOutside hook with useClickOutsideEvent
• Fixed FormEvent usage with proper React.ChangeEvent
• Added explicit return type annotations for TypeScript compatibility
• Converted styled component to inline styles for simpler styling approach
• Removed unused languageSubscription.ts module (state management now uses React Context)

Companion Changes:

• Updated sanity-plugin-internationalized-array to support new language-filter v4.1.0 API
• Moved @sanity/language-filter from dependencies to devDependencies/peerDependencies in internationalized-array
• Added changeset for internationalized-array patch release

Testing:

• Converted from Jest to Vitest
• Added package exports validation test
• Updated tests to include new parentValue parameter
• All 8 tests passing

Breaking Changes:

• React 19.2+ required
• Sanity Studio v5+ required
• ESM-only (CommonJS removed)
• Node.js 20.19+ required
• styled-components peer dependency removed
• filterField function signature changed: now accepts fourth parameter parentValue (type: Record<string, unknown> | undefined)
• Language subscription bus removed: languageSubscription.ts module and its exports (createSelectedLanguageIdsBus, SelectedLanguageIdsBus, LanguageSubscription, Unsubscribe, LanguageSubscribe) have been removed in favor of React Context

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[Copilot]

Pull request overview

This PR ports the @sanity/language-filter plugin from its standalone repository to the Sanity plugins monorepo using git subtree, preserving the complete git history. The migration updates the plugin to v4.1.0, which adds a new parentValue parameter to the filterField function, enabling more advanced filtering based on the parent object's current value.

Changes:

• Ported plugin to monorepo with monorepo-compatible configurations (package.json, tsconfig, vitest, package.config.ts)
• Replaced deprecated hooks and modernized code (useClickOutside → useClickOutsideEvent, removed styled-components)
• Added v4.1.0 feature: parentValue parameter to filterField function signature
• Converted tests from Jest to Vitest and added package exports validation

Reviewed changes

Copilot reviewed 23 out of 24 changed files in this pull request and generated 3 comments.

Show a summary per file

File	Description
pnpm-workspace.yaml	Added @sanity/util to catalog at ^5.8.1
pnpm-lock.yaml	Updated lockfile with new plugin dependencies and workspace references
plugins/@sanity/language-filter/package.json	Configured as monorepo plugin with catalog dependencies
plugins/@sanity/language-filter/src/*.ts(x)	Plugin source code with modernized hooks and new parentValue support
plugins/@sanity/language-filter/tsconfig*.json	TypeScript configurations with isolatedDeclarations disabled
plugins/@sanity/language-filter/vitest.config.ts	Vitest test configuration for jsdom environment
plugins/@sanity/language-filter/package.config.ts	React Compiler configuration targeting React 19
plugins/@sanity/language-filter/README.md	Updated documentation with parentValue parameter
plugins/@sanity/language-filter/CHANGELOG.md	Historical changelog from git subtree
plugins/@sanity/language-filter/LICENSE	MIT license with 2026 copyright
dev/test-studio/package.json	Updated to use workspace:* for language-filter
.changeset/language-filter-monorepo-port.md	Changeset documenting major breaking changes

Files not reviewed (1)

• pnpm-lock.yaml: Language not supported

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[pedrobonamin]

@copilot add a changeset for the array internationalization update

[Copilot]

@copilot add a changeset for the array internationalization update

Done in 57f5a17. Added changeset for the internationalized-array update to support @sanity/language-filter v4.1.0 with the new parentValue parameter.

[Copilot]

Pull request overview

Copilot reviewed 26 out of 27 changed files in this pull request and generated 3 comments.

Files not reviewed (1)

• pnpm-lock.yaml: Language not supported

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[Copilot]

Pull request overview

Copilot reviewed 25 out of 26 changed files in this pull request and generated no new comments.

Files not reviewed (1)

• pnpm-lock.yaml: Language not supported

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