github biomejs/biome cli/v1.4.1-nightly.22dd4e1
CLI v1.4.1-nightly.22dd4e1
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latest releases: cli/v1.9.5-nightly.81fdedb, cli/v1.9.5-nightly.c0cccb2, cli/v1.9.5-nightly.ff02a0b...
pre-release11 months ago

Analyzer

CLI

New features

  • The command biome migrate now updates the $schema if there's an outdated version.

  • The commands format, lint, check and ci now accepts two new arguments: --changed and --since. Use these options when the VCS integration
    is enabled to process only the files that were changed. Contributed by @simonxabris 

    biome format --write --changed

Bug fixes

  • Fix #709, by correctly parsing allow list patterns in .gitignore files. Contributed by @ematipico
  • Fix #805, by correctly parsing these kind of patterns. Contributed by @ematipico
  • Fix #1117 by correctly respecting the matching. Contributed by @ematipico
  • Fix #1247, Biome now prints a warning diagnostic if it encounters files that can't handle. Contributed by @ematipico
  • Fix #691 and #1190, by correctly apply the configuration when computing the overrides. Contributed by @ematipico

Configuration

New features

  • Users can specify git ignore patterns inside ignore and include properties, for example it's possible to allow list globs of files using the ! character: 

    {
  "files": {
    "ignore": [
      "node_modules/**",
      "!**/dist/**" // this is now accepted and allow list files inside the `dist` folder
    ]
  }
}

Editors

New features

  • The LSP register formatting without the need of using dynamic capabilities from the client.

Formatter

  • Fix #1169. Account for escaped strings when computing layout for assignments. Contributed by @kalleep
  • Fix #1220. Avoid duplicating comments in type unions for mapped, empty object, and empty tuple types. #1240 Contributed by @faultyserver

JavaScript APIs

Linter

New features

  • Add useExportType that enforces the use of type-only exports for names that are only types. Contributed by @Conaclos 

      interface A {}
  interface B {}
  class C {}

- export type { A, C }
+ export { type A, C }

- export { type B }
+ export type { B }

  • Add useFilenamingConvention, that enforces naming conventions for JavaScript and TypeScript filenames. Contributed by @Conaclos

    By default, the rule requires that a filename be in camelCase, kebab-case, snake_case, or matches the name of an export in the file.
    The rule provides options to restrict the allowed cases.

  • Add noNodejsModules, that disallows the use of Node.js modules.

  • Add useNodeImportProtocol that forces the use of the node: protocol when importing Node.js modules. Contributed by @2-NOW

  • Add noInvalidUseBeforeDeclaration that reports variables and function parameters used before their declaration. Contributed by @Conaclos 

    function f() {
  console.log(c); // Use of `c` before its declaration.
  const c = 0;
}

Enhancements

  • Address #959 and #1157. noEmptyInterface no longer reports empty interfaces that extend a type. Contributed by @Conaclos

    This allows supporting interface augmentation in external modules as demonstrated in the following example: 

    interface Extension {
  metadata: unknown;
}

declare module "@external/module" {
  // Empty interface that extends a type.
  export interface ExistingInterface extends Extension {}
}

Bug fixes

  • Fix #1061. noRedeclare no longer reports overloads of export default function. Contributed by @Conaclos

    The following code is no longer reported: 

    export default function(a: boolean): boolean;
export default function(a: number): number;
export default function(a: number | boolean): number | boolean {
	return a;
}

  • Fix #651, useExhaustiveDependencies no longer reports out of scope dependencies. Contributed by @kalleep

    The following code is no longer reported: 

    let outer = false;

const Component = ({}) => {
  useEffect(() => {
    outer = true;
  }, []);
}

  • Fix #1191. noUselessElse now preserve comments of the else clause. Contributed by @Conaclos

    For example, the rule suggested the following fix: 

      function f(x) {
    if (x <0) {
      return 0;
    }
-   // Comment
-   else {
      return x;
-   }
  }

    Now the rule suggests a fix that preserves the comment of the else clause: 

      function f(x) {
    if (x <0) {
      return 0;
    }
    // Comment
-   else {
      return x;
-   }
  }

  • Fix #728. useSingleVarDeclarator no longer outputs invalid code. Contributed by @Conaclos

  • Fix #1167. [useValidAriaProps] no longer reports aria-atomic as invalid. Contributed by @unvalley

Parser

  • Fix #1077, fix issues when parsing conditional expression where parenthesized identifier was being parsed as arrow expression. Contributed by @kalleep

These cases are now properly parsed:

javascript: 

  a ? (b) : a => {};

typescript: 

  a ? (b) : a => {};

jsx: 

  bar ? (foo) : (<a>{() => {}}</a>);

What's Changed

Other changes

New Contributors

Full Changelog: cli/v1.4.1-nightly.efc084c...cli/v1.4.1-nightly.22dd4e1

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