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CLI v1.8.4-nightly.7aaf0ce

06 Sep 09:13
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Pre-release

Analyzer

New features

Enhancements

CLI

New features

  • Add --graphql-linter-enabled option, to control whether the linter should be enabled or not for GraphQL files. Contributed by @ematipico

  • New EXPERIMENTAL search command. The search command allows you to search a Biome project using GritQL syntax.

    GritQL is a powerful language that lets you do structural searches on your codebase. This means that trivia such as whitespace or even the type of strings quotes used will be ignored in your search query. It also has many features for querying the structure of your code, making it much more elegant for searching code than regular expressions.

    While we believe this command may already be useful to users in some situations (especially when integrated in the IDE extensions!), we also had an ulterior motive for adding this command: We intend to utilize GritQL for our plugin efforts, and by allowing our users to try it out in a first iteration, we hope to gain insight in the type of queries you want to do, as well as the bugs we need to focus on.

    For now, the search command is explicitly marked as EXPERIMENTAL, since many bugs remain. Keep this in mind when you try it out, and please let us know your issues!

    Note: GritQL escapes code snippets using backticks, but most shells interpret backticks as command invocations. To avoid this, it's best to put single quotes around your Grit queries.

    biome search '`console.log($message)`' # find all `console.log` invocations

    Contributed by @arendjr and @BackupMiles

  • The option --max-diagnostics now accept a none value, which lifts the limit of diagnostics shown. Contributed by @ematipico

    • Add a new reporter --reporter=gitlab, that emits diagnostics for using the GitLab Code Quality report.

      [
        {
          "description": "Use === instead of ==. == is only allowed when comparing against `null`",
          "check_name": "lint/suspicious/noDoubleEquals",
          "fingerprint": "6143155163249580709",
          "severity": "critical",
          "location": {
            "path": "main.ts",
            "lines": {
              "begin": 4
            }
          }
        }
      ]

      Contributed by @NiclasvanEyk

  • Add new options to the lsp-proxy and start commands:

    • --log-path: a directory where to store the daemon logs. The commands also accepts the environment variable BIOME_LOG_PATH.
    • --log-prefix-name: a prefix that's added to the file name of the logs. It defaults to server.log. The commands also accepts the environment variable BIOME_LOG_PREFIX_NAME.

    @contributed by @ematipico

Enhancements

  • When a --reporter is provided, and it's different from the default one, the value provided by via --max-diagnostics is ignored and the limit is lifted. Contributed by @ematipico

  • biome init now generates a new config file with more options set.
    This change intends to improve discoverability of the options and to set the more commonly used options to their default values.
    Contributed by @Conaclos

  • The --verbose flag now reports the list of files that were evaluated, and the list of files that were fixed.
    The evaluated files are the those files that can be handled by Biome, files that are ignored, don't have an extension or have an extension that Biome can't evaluate are excluded by this list.
    The fixed files are those files that were handled by Biome and changed. Files that stays the same after the process are excluded from this list.

     VERBOSE  ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━
    
      ℹ Files processed:
    
      - biome/biome.json
      - biome/packages/@biomejs/cli-win32-arm64/package.json
      - biome/packages/tailwindcss-config-analyzer/package.json
    
     VERBOSE  ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━
    
      ℹ Files fixed:
    
      - biome/biome/packages/tailwindcss-config-analyzer/src/generate-tailwind-preset.ts

    Contributed by @ematipico

  • Allow passing nursery to the --only and --skip filters.

    The --only option allows you to run a given rule or rule group.
    The --skip option allows you to skip the execution of a given group or a given rule.

    Previously, it was not possible to pass nursery.
    This restriction is now removed, as it may make sense to skip the nursery rules that a project has enabled.

    Contributed by @Conaclos

  • The CLI now returns an error code when calling a command in stdin mode, and the contents of the files aren't fixed. For example, the following example will result in an error code of 1 because the lint command triggers some lint rules:

    echo "let x = 1" | biome lint --stdin-file-path=stdin.js

    Contributed by @ematipico

Bug fixes

  • biome lint --write now takes --only and --skip into account (#3470). Contributed by @Conaclos

  • Fix #3368, now the reporter github tracks the diagnostics that belong to formatting and organize imports. Contributed by @ematipico

  • Fix #3545, display a warning, 'Avoid using unnecessary Fragment,' when a Fragment contains only one child element that is placed on a new line. Contributed by @satojin219

  • Migrating from Prettier or ESLint no longer overwrite the overrides field from the configuration (#3544). Contributed by @Conaclos

  • Fix JSX expressions for noAriaHiddenOnFocusable (#3708). Contributed by @anthonyshew

  • Fix edge case for <canvas> elements that use role="img" (#3728). Contributed by @anthonyshew

  • Fix #3633, where diagnostics where incorrectly printed if the code has errors. Contributed by @ematipico

  • Allow aria-label on heading to prevent useHeadingContent diagnostic (#3767). Contributed by @anthonyshew

  • Fix edge case #3791 for rule noFocusedTests being used with non-string-like expressions (#3793). Contributed by @h-a-n-a

Configuration

  • Add support for loading configuration from .editorconfig files (#1724).

    Configuration supplied in .editorconfig will be overridden by the configuration in biome.json. Support is disabled by default and can be enabled by adding the following to your formatter configuration in biome.json:

    {
      "formatter": {
        "useEditorconfig": true
      }
    }

    Contributed by @dyc3

  • overrides from an extended configuration is now merged with the overrides of the extension.

    Given the following shared configuration biome.shared.json:

    {
      "overrides": [
        {
          "include": ["**/*.json"],
          // ...
        }
      ]
    }

    and the following configuration:

    {
      "extends": ["./biome.shared.json"],
      "overrides": [
        {
          "include": ["**/*.ts"],
          // ...
        }
      ]
    }

    Previously, the overrides from biome.shared.json was overwritten.
    It is now merged and results in the following configuration:

    {
      "extends": ["./biome.shared.json"],
      "overrides": [
        {
          "include": ["**/*.json"],
          // ...
        },
        {
          "include": ["**/*.ts"],
          // ...
        }
      ]
    }

    Contributed by @Conaclos

Editors

Bug fixes

  • Fix #3577, where the update of the configuration file was resulting in the creation of a new internal project. Contributed by @ematipico
  • Fix #3696, where biome.jsonc was incorrectly parsed with incorrect options. Contributed by @ematipico

Formatter

Enhancements

  • Add parentheses for nullcoalescing in ternaries.

    This change aligns on Prettier 3.3.3.
    This adds clarity to operator precedence.

    - foo ? bar ?? foo : baz;
    + foo ? (bar ?? foo) : baz;

    Contributed by @Conaclos

  • The CSS formatter is enabled by default. Which means that you don't need to opt-in anymore using the configuration file biome.json:

    {
    -  "css": {
    -    "formatter": {
    -      "enabled": true
    -    }
    -  }
    }

    Contributed by @ematipico

Bug fixes

  • Keep the parentheses around infer ... extends declarations in type unions and type intersections (#3419). Contributed by @Conaclos

  • Keep parentheses around a yield expression inside a type assertion.

    Previously, Biome removed parentheses around some expressions that require them inside a type assertion.
    For example, in the following code, Biome now preserves the parentheses.

    function* f() {
      return <T>(yield 0);
    }

    Contributed by @Conaclos

  • Remove parentheses around expressions ...

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CLI v1.8.4-nightly.bd1d0c6

04 Aug 10:20
bd1d0c6
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Pre-release

Analyzer

Enhancements

CLI

New features

  • Add --graphql-linter-enabled option, to control whether the linter should be enabled or not for GraphQL files. Contributed by @ematipico
  • The option --max-diagnostics now accept a none value, which lifts the limit of diagnostics shown. Contributed by @ematipico

Enhancements

  • When a --reporter is provided, and it's different from the default one, the value provided by via --max-diagnostics is ignored and the limit is lifted. Contributed by @ematipico

  • biome init now generates a new config file with more options set.
    This change intends to improve discoverability of the options and to set the more commonly used options to their default values.
    Contributed by Conaclos

Bug fixes

  • biome lint --write now takes --only and --skip into account (#3470). Contributed by Conaclos

Configuration

  • Add support for loading configuration from .editorconfig files (#1724). Contributed by @dyc3
    Configuration supplied in .editorconfig will be overridden by the configuration in biome.json. Support is disabled by default and can be enabled by adding the following to your formatter configuration in biome.json:
    {
      "formatter": {
        "useEditorconfig": true
      }
    }

Formatter

Enhancements

  • Add parentheses for nullcoalescing in ternaries.

    This change aligns on Prettier 3.3.3.
    This adds clarity to operator precedence.

    - foo ? bar ?? foo : baz;
    + foo ? (bar ?? foo) : baz;

    Contributed by @Conaclos

Bug fixes

  • Keep the parentheses around infer declarations in type unions and type intersections (#3419). Contributed by @Conaclos

  • Keep parentheses around a yield expression inside a type assertion.

    Previously, Biome removed parentheses around some expressions that require them inside a type assertion.
    For example, in the following code, Biome now preserves the parentheses.

    function* f() {
      return <T>(yield 0);
    }

    Contributed by @Conaclos

  • Remove parentheses around expressions that don't need them inside a decorator.

    Biome now matches Prettier in the following cases:

      class {
    -   @(decorator)
    +   @decorator
        method() {}
      },
      class {
    -   @(decorator())
    +   @decorator()
        method() {}
      },
      class {
        @(decorator?.())
        method() {}
      },

    Contributed by @Conaclos

  • Keep parentheses around objects preceded with a @satisfies comment.

    In the following example, parentheses are no longer removed.

    export const PROPS = /** @satisfies {Record<string, string>} */ ({
      prop: 0,
    });

    Contributed by @Conaclos

Linter

New features

Enhancements

  • noInvalidUseBeforeDeclaration now reports direct use of an enum member before its declaration.

    In the following code, A is reported as use before its declaration.

    enum E {
      B = A << 1,
      A = 1,
    }

    Contributed by @Conaclos

  • useFilenamingConvention now supports unicase letters.

    unicase letters have a single case: they are neither uppercase nor lowercase.
    Biome now accepts filenames in unicase.
    For example, the filename 안녕하세요 is now accepted.

    We still reject a name that mixes unicase characters with lowercase or uppercase characters.
    For example, the filename A안녕하세요 is rejected.

    This change also fixes #3353.
    Filenames consisting only of numbers are now accepted.

    Contributed by @Conaclos

  • useFilenamingConvention now supports Next.js/Nuxt/Astro dynamic routes (#3465).

    Next.js, SolidStart, Nuxt, and Astro support dynamic routes such as [...slug].js and [[...slug]].js.

    Biome now recognizes this syntax. slug must contain only alphanumeric characters.

    Contributed by @Conaclos

  • useExportType no longer report empty export (#3535).

    An empty export {} allows you to force TypeScript to consider a file with no imports and exports as an EcmaScript module.
    While export type {} is valid, it is more common to use export {}.
    Users may find it confusing that the linter asks them to convert it to export type {}.
    Also, a bundler should be able to remove export {} as well as export type {}.
    So it is not so useful to report export {}.

    Contributed by @Conaclos

  • noUnusedVariables now checks TypeScript declaration files.

    This allows to report a type that is unused because it isn't exported.
    Global declarations files (declarations files without exports and imports) are still ignored.

    Contributed by @Conaclos

Bug fixes

  • Don't request alt text for elements hidden from assistive technologies (#3316). Contributed by @robintown

  • Fix [#3149] crashes that occurred when applying the noUselessFragments unsafe fixes in certain scenarios. Contributed by @unvalley

  • noExcessiveNestedTestSuites: Fix another edge case where the rule would alert on heavily nested zod schemas. Contributed by @dyc3

  • noExtraNonNullAssertion no longer reports a single non-null assertion enclosed in parentheses (#3352). Contributed by @Conaclos

  • useAdjacentOverloadSignatures no longer reports a #private class member and a public class member that share the same name (#3309).

    The following code is no longer reported:

    class C {
      #f() {}
      g() {}
      f() {}
    }

    Contributed by @Conaclos

  • useNamingConvention now accepts applying custom convention on abstract classes. Contributed by @Conaclos

  • useNamingConvention no longer suggests an empty fix when a name doesn't match strict Pascal case (#3561).

    Previously the following code led useNamingConvention to suggest an empty fix.
    The rule no longer provides a fix for this case.

    type AAb = any

    Contributed by @Conaclos

  • useNamingConvention no longer provides fixes for global TypeScript declaration files.

    Global TypeScript declaration files have no epxorts and no imports.
    All the declared types are available in all files of the project.
    Thus, it is not safe to propose renaming only in the declaration file.

    Contributed by @Conaclos

Parser

Bug fixes

.class {
  && {
    color: red;
  }
}
  • Fix #3410 by correctly parsing break statements containing keywords.
    out: while (true) {
      break out;
    }
    Contributed by @ah-yu

What's Changed

Other changes

  • fix(codegen): create output directory if it doesn't exist by @dyc3 in #3389
  • refactor(codegen): generate most functions on LanguageKind with a macro by @dyc3 in #3380
  • chore(grit): add auto-wrap + integrate with search command by @arendjr in #3288
  • refactor(formatter_test...
Read more

CLI v1.8.3

27 Jun 14:35
c28d597
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CLI

Bug fixes

  • Fix #3104 by suppressing node warnings when using biome migrate. Contributed by @SuperchupuDev

  • Force colors to be off when using the GitHub reporter to properly create annotations in GitHub actions (#3148). Contributed by @Sec-ant

Parser

Bug fixes

Formatter

Bug fixes

Linter

New features

Bug fixes

  • useConsistentArrayType and useShorthandArrayType now ignore Array in the extends and implements clauses. Fix #3247. Contributed by @Conaclos
  • Fixes #3066 by taking into account the dependencies declared in the package.json. Contributed by @ematipico
  • The code action of the useArrowFunction rule now preserves a trailing comma when there is only a single type parameter in the arrow function and JSX is enabled. Fixes #3292. Contributed by @Sec-ant

Enhancements

  • Enhance tailwind sorting lint rule #1274 with variant support.

    Every preconfigured variant is assigned a weight that concurs on establishing the output sorting order.
    Since nesting variants on the same utility class is possible, the resulting weight is the Bitwise XOR of all the variants weight for that class.
    Dynamic variants (e.g. has-[.custom-class], group-[:checked]) are also supported and they take the weight of their base variant name the custom value attached (e.g. has-[.custom-class] takes has weight).
    Arbitrary variants (e.g. [&nth-child(2)]) don't have a weight assigned and they are placed after every known variant.
    Classes with the same amount of arbitrary variants follow lexicographical order. The class that has the highest number of nested arbitrary variants is placed last.
    Screen variants (e.g. sm:, max-md:, min-lg:) are not supported yet.

    Contributed by @lutaok

What's Changed

Other changes

  • feat(workspace): adds GraphQL parsing capabilities via feature by @ematipico in #3238
  • feat(editorconfig): expand unknown globs into known globs by @dyc3 in #3218
  • chore(core): implement pull_diagnostics for graphql by @ematipico in #3248
  • chore(linter): add a rule source of noUnknownProperty by @togami2864 in #3252
  • feat: tailwind variant sorting by @lutaok in #3208
  • test(parse/json): add test for bug where overrides erroneously override special parsing options by @dyc3 in #3260
  • docs(analyzer): improve contributing guide for rules with multiple signals by @minht11 in #3245
  • chore(lint): initialise biome_graphql_analyze by @ematipico in #3276
  • chore(deps): update @biomejs packages by @renovate in #3266
  • docs(useNamingConvention): add examples and improve explanations by @Conaclos in #3277
  • refactor(parse/json): change fields in JsonParserSettings to Option by @dyc3 in #3272
  • feat(search-output-formatter): initialize search output formatter by @BackupMiles in #3258
  • chore(grit): implement node-like compilers + fixes by @arendjr in #3253
  • feat: enable linting for graphql by @ematipico in #3295
  • refactor(parse/css): change fields in CssParserSettings to Option by @dyc3 in #3273
  • refactor: add variables to format strings directly by @hamirmahal in #3299
  • chore: update codegen to include GraphQL by @ematipico in #3301

New Contributors

Full Changelog: cli/v1.8.2...cli/v1.8.3

CLI v1.8.2

20 Jun 10:38
54b4c9a
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CLI

Bug fixes

  • Fix #3201 by correctly injecting the source code of the file when printing the diagnostics. Contributed by @ematipico
  • Fix #3179 where comma separators are not correctly removed after running biome migrate and thus choke the parser. Contributed by @Sec-ant
  • Fix #3232 by correctly using the colors set by the user. Contributed by @ematipico

Enhancement

  • Reword the reporter message No fixes needed to No fixes applied.

    The former message is misleading when there're still errors or warnings in the files that should be taken care of manually. For example:

    Checked 2 files in <TIME>. No fixes needed.
    Found 2 errors.
    

    The new message suits better in these cases.

    Contributed by @Sec-ant

Configuration

Bug fixes

  • Don't conceal previous overrides (#3176).

    Previously, each override inherited the unset configuration of the base configuration.
    This means that setting a configuration in an override can be concealed by a subsequent override that inherits of the value from the base configuration.

    For example, in the next example, noDebugger was disabled for the index.js file.

    {
      "linter": {
        "rules": {
          "suspicious": { "noDebugger": "off" }
        }
      },
      "overrides": [
        {
          "include": ["index.js"],
          "linter": {
            "rules": {
              "suspicious": { "noDebugger": "warn" }
            }
          }
        }, {
          "include": ["index.js"],
          "linter": {
            "rules": {
              "suspicious": { "noDoubleEquals": "off" }
            }
          }
        }
      ]
    }

    The rule is now correctly enabled for the index.js file.

    Contributed by @Conaclos

Formatter

Bug fixes

  • Fix #3103 by correctly resolving CSS formatter options. Contributed by @ah-yu
  • Fix #3192 don't add an extra whitespace within :has. Contributed by @denbezrukov

JavaScript APIs

Bug fixes

  • Fix a regression introduced by the release of v1.8.0

Linter

New features

Bug fixes

  • Add nursery/noShorthandPropertyOverrides. #2958 Contributed by @neokidev

  • Fix [#3084] false positive by correctly recognize parenthesized return statement. Contributed by @unvalley

  • useImportExtensions now suggests a correct fix for import '.' and import './.'. Contributed by @minht11

  • Fix useDateNow false positive when new Date object has arguments new Date(0).getTime(). Contributed by @minht11.

  • The noUnmatchableAnbSelector rule is now able to catch unmatchable an+b selectors like 0n+0 or -0n+0. Contributed by @Sec-ant.

  • The useHookAtTopLevel rule now recognizes properties named as hooks like foo.useFoo(). Contributed by @ksnyder9801

  • Fix #3092, prevent warning for Custom properties (--*). Contributed by @chansuke

  • Fix a false positive in the useLiteralKeys rule. (#3160)

    This rule now ignores the following kind of computed member name:

    const a = {
      [`line1
      line2`]: true,
    };

    Contributed by @Sec-ant

  • The noUnknownProperty rule now ignores the composes property often used in css modules. #3000 Contributed by @chansuke

  • Fix false positives of the useExhaustiveDependencies rule.

    The component itself is considered stable when it is used recursively inside a hook closure defined inside of it:

    import { useMemo } from "react";
    
    function MyRecursiveComponent() {
      // MyRecursiveComponent is stable, we don't need to add it to the dependencies list.
      const children = useMemo(() => <MyRecursiveComponent />, []);
      return <div>{children}</div>;
    }

    Also, export default function and export default class are considered stable now because they can only appear at the top level of a module.

    Contributed by @Sec-ant

  • Fix missing withDefaults macro in vue files for globals variables. Contributed by @Shyam-Chen

Parser

Bug fixes

  • Fix CSS modules settings mapping. Contributed by @denbezrukov

What's Changed

Other changes

New Contributors

Full Changelog: cli/v1.8.1...cli/v1.8.2

CLI v1.8.1

10 Jun 13:44
39db99b
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CLI

Bug fixes

  • Fix #3069, prevent overwriting paths when using --staged or --changed options. Contributed by @unvalley
  • Fix a case where the file link inside a diagnostic wasn't correctly displayed inside a terminal run by VSCode. Contributed by @uncenter

Configuration

Bug fixes

  • Fix #3067, by assigning the correct default value to indentWidth. Contributed by @ematipico

Formatter

Bug fixes

  • Fix the bug where whitespace after the & character in CSS nesting was incorrectly trimmed, ensuring proper targeting of child classes #3061. Contributed by @denbezrukov
  • Fix #3068 where the CSS formatter was inadvertently converting variable declarations and function calls to lowercase. Contributed by @denbezrukov
  • Fix the formatting of CSS grid layout properties. Contributed by @denbezrukov

Linter

Bug fixes

  • The noEmptyBlock css lint rule now treats empty blocks containing comments as valid ones. Contributed by @Sec-ant

  • useLiteralKeys no longer reports quoted member names (#3085).

    Previously useLiteralKeys reported quoted member names that can be unquoted.
    For example, the rule suggested the following fix:

    - const x = { "prop": 0 };
    + const x = { prop: 0 };

    This conflicted with the option quoteProperties of our formatter.

    The rule now ignores quoted member names.

    Contributed by @Conaclos

  • noEmptyInterface now ignores empty interfaces in ambient modules (#3110). Contributed by @Conaclos

  • noUnusedVariables and noUnusedFunctionParameters no longer report the parameters of a constructor type (#3135).

    Previously, arg was reported as unused in a constructor type like:

    export type Classlike = new (arg: unknown) => string;

    Contributed by @Conaclos

  • noStringCaseMismatch now ignores escape sequences (#3134).

    The following code is no longer reported by the rule:

    s.toUpperCase() === "\u001b";

    Contributed by @Conaclos

Parser

New features

  • Implemented CSS Unknown At-Rule parsing, allowing the parser to gracefully handle unsupported or unrecognized CSS at-rules. Contributed by @denbezrukov

Bug fixes

  • Fix #3055 CSS: Layout using named grid lines is now correctly parsed. Contributed by @denbezrukov
  • Fix #3091. Allows the parser to handle nested style rules and at-rules properly, enhancing the parser's compatibility with the CSS Nesting Module. Contributed by @denbezrukov

Other changes

New Contributors

Full Changelog: cli/v1.8.0...cli/v1.8.1

CLI v1.8.0

04 Jun 11:45
378c05e
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Analyzer

New features

  • Allow suppression comments to suppress individual instances of rules. This is
    used for the lint rule useExhaustiveDependencies, which is now able to
    suppress specific dependencies. Fixes #2509. Contributed by @arendjr

Enhancements

  • Assume Astro object is always a global when processing .astro files. Contributed by @minht11
  • Assume Vue compiler macros are globals when processing .vue files. (#2771) Contributed by @dyc3

CLI

New features

  • New clean command. Use this new command to clean after the biome-logs directory, and remove all the log files.

    biome clean
  • Add two new options --only and --skip to the command biome lint (#58).

    The --only option allows you to run a given rule or rule group,
    For example, the following command runs only the style/useNamingConvention and style/noInferrableTypes rules.
    If the rule is disabled in the configuration, then its severity level is set to error for a recommended rule or warn otherwise.

    biome lint --only=style/useNamingConvention --only=style/noInferrableTypes

    Passing a group does not change the severity level of the rules in the group.
    All the disabled rules in the group will remain disabled.
    To ensure that the group is run, the recommended field of the group is enabled.
    The nursery group cannot be passed, as no rules are enabled by default in the nursery group.

    The --skip option allows you to skip the execution of a given group or a given rule.
    For example, the following command skips the style group and the suspicious/noExplicitAny rule.

    biome lint --skip=style --skip=suspicious/noExplicitAny

    You can also use --only and --skip together. --skip oevrrides --only.
    The following command executes only the rules from the style group, but the style/useNamingConvention rule.

    biome lint --only=style --skip=style/useNamingConvention

    These options are compatible with other options such as --write (previously --apply), and --reporter.

    Contributed by @Conaclos

  • Add new command biome clean. Use this command to purge all the logs emitted by the Biome daemon. This command is really useful, because the Biome daemon tends
    log many files and contents during its lifecycle. This means that if your editor is open for hours (or even days), the biome-logs folder could become quite heavy. Contributed by @ematipico

  • Add support for formatting and linting CSS files from the CLI. These operations are opt-in for the time being.

    If you don't have a configuration file, you can enable these features with --css-formatter-enabled and --css-linter-enabled:

    biome check --css-formatter-enabled=true --css-linter-enabled=true ./

    Contributed by @ematipico

  • Add new CLI options to control the CSS formatting. Check the CLI reference page for more details. Contributed by @ematipico

  • Add new options --write, --fix (alias of --write) and --unsafe to the command biome lint and biome check.
    Add a new option --fix (alias of --write) to the command biome format and biome migrate.

    biome <lint|check> --<write|fix> [--unsafe]
    biome format --<write|fix>
    biome migrate --<write|fix>

    The biome <lint|check> --<write|fix> has the same behavior as biome <lint|check> --apply.
    The biome <lint|check> --<write|fix> --unsafe has the same behavior as biome <lint|check> --apply-unsafe.
    The biome format --fix has the same behavior as biome format --write.
    The biome migrate --fix has the same behavior as biome migrate --write.

    This change allows these commands to write modifications in the same options.
    With this change, the --apply and --apply-unsafe options are deprecated.

    Contributed by @unvalley

Enhancements

  • Biome now executes commands (lint, format, check and ci) on the working directory by default. #2266 Contributed by @unvalley

    - biome check .
    + biome check    # You can run the command without the path
  • biome migrate eslint now tries to convert ESLint ignore patterns into Biome ignore patterns.

    ESLint uses gitignore patterns.
    Biome now tries to convert these patterns into Biome ignore patterns.

    For example, the gitignore pattern /src is a relative path to the file in which it appears.
    Biome now recognizes this and translates this pattern to ./src.

    Contributed by @Conaclos

  • biome migrate eslint now supports the eslintIgnore field in package.json.

    ESLint allows the use of package.json as an ESLint configuration file.
    ESLint supports two fields: eslintConfig and eslintIgnore.
    Biome only supported the former. It now supports both.

    Contributed by @Conaclos

  • biome migrate eslint now propagates NodeJS errors to the user.

    This will help users to identify why Biome is unable to load some ESLint configurations.

    Contributed by @Conaclos

  • Add a new --reporter called summary. This reporter will print diagnostics in a different way, based on the tools (formatter, linter, etc.) that are executed.
    Import sorting and formatter shows the name of the files that require formatting. Instead, the linter will group the number of rules triggered and the number of errors/warnings:

    Formatter ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━
    The following files needs to be formatted:
    main.ts
    index.ts
    
    Organize Imports ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━
    The following files needs to have their imports sorted:
    main.ts
    index.ts
    
    Analyzer ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━
    Some analyzer rules were triggered
    
    Rule Name                                               Diagnostics
    lint/suspicious/noImplicitAnyLet                        12 (12 error(s), 0 warning(s), 0 info(s))
    lint/suspicious/noDoubleEquals                          8 (8 error(s), 0 warning(s), 0 info(s))
    lint/suspicious/noRedeclare                             12 (12 error(s), 0 warning(s), 0 info(s))
    lint/suspicious/noDebugger                              20 (20 error(s), 0 warning(s), 0 info(s))
    

    Contributed by @ematipico

  • biome ci now enforces printing the output using colours. If you were previously using --colors=force, you can remove it because it's automatically set. Contributed by @ematipico

  • Add a new --reporter called github. This reporter will print diagnostics using GitHub workflow commands:

    ::error title=lint/suspicious/noDoubleEquals,file=main.ts,line=4,endLine=4,col=3,endColumn=5::Use === instead of ==
    ::error title=lint/suspicious/noDebugger,file=main.ts,line=6,endLine=6,col=1,endColumn=9::This is an unexpected use of the debugger statement.
    ::error title=lint/nursery/noEvolvingAny,file=main.ts,line=8,endLine=8,col=5,endColumn=6::This variable's type is not allowed to evolve implicitly, leading to potential any types.
    

    Contributed by @ematipico

  • Add a new --reporter called junit. This reporter will print diagnostics using GitHub workflow commands:

    <?xml version="1.0" encoding="UTF-8"?>
    <testsuites name="Biome" tests="16" failures="16" errors="20" time="<TIME>">
      <testsuite name="main.ts" tests="1" disabled="0" errors="0" failures="1" package="org.biome">
          <testcase name="org.biome.lint.suspicious.noDoubleEquals" line="4" column="3">
              <failure message="Use === instead of ==. == is only allowed when comparing against `null`">line 3, col 2, Use === instead of ==. == is only allowed when comparing against `null`</failure>
          </testcase>
      </testsuite>
      <testsuite name="main.ts" tests="1" disabled="0" errors="0" failures="1" package="org.biome">
          <testcase name="org.biome.lint.suspicious.noDebugger" line="6" column="1">
              <failure message="This is an unexpected use of the debugger statement.">line 5, col 0, This is an unexpected use of the debugger statement.</failure>
          </testcase>
      </testsuite>
      <testsuite name="main.ts" tests="1" disabled="0" errors="0" failures="1" package="org.biome">
          <testcase name="org.biome.lint.nursery.noEvolvingAny" line="8" column="5">
              <failure message="This variable&apos;s type is not allowed to evolve implicitly, leading to potential any types.">line 7, col 4, This variable&apos;s type is not allowed to evolve implicitly, leading to potential any types.</failure>
          </testcase>
      </testsuite>
    </testsuites>

    Contributed by @ematipico

Bug fixes

  • Fix #3024, where running biome init would create biome.json even if biome.jsonc already exists. Contributed by @minht11

Configuration

New features

  • Add an rule option fix to override the code fix kind of a rule (#2882).

    A rule can provide a safe or an unsafe code action.
    You can now tune the kind of code actions thanks to the fix option.
    This rule option takes a value among:

    • none: the rule no longer emits code actions.
    • safe: the rule emits safe code action.
    • unsafe: the rule emits unsafe code action.

    The following configuration disables the code actions of noUnusedVariables, makes the emitted code actions of style/useConst a...

Read more

CLI v1.7.4-nightly.125f34b

23 May 07:14
125f34b
Compare
Choose a tag to compare
Pre-release

Analyzer

Enhancements

  • Assume Vue compiler macros are globals when processing .vue files. (#2771) Contributed by @dyc3

CLI

New features

  • Add a new option --rule to the command biome lint (#58).

    This new option allows you to execute a single rule or a rule group.
    This option is convenient to test a rule or apply the code fixes of a single rule.

    For example, you can execute the style/useNamingConvention rule on the working directory:

    biome lint --rule=style/useNamingConvention ./

    If the rule has a code action (autofix), you can use --apply to apply the fix:

    biome lint --rule=style/useNamingConvention --apply ./

    The option takes the rule options in the Biome configuration file into account.
    Only, the severity level of the rule is overridden by its default value,
    i.e. error for a recommended rule or warn otherwise.

    You can also run a group of rules:

    biome lint --rule=suspicious src/main.js

    In this case, the severity level of a rule is not overridden.
    Thus, the disabled rules stay disabled.
    To ensure that the group is run, the recommended field of the group is turned on.
    The nursery group cannot be passed because no rules are enabled in the nursery group by default.

    The option is compatible with other options such as --apply, --apply-unsafe and --reporter.

    Contributed by @Conaclos

  • Add new command biome clean. Use this command to purge all the logs emitted by the Biome daemon. This command is really useful, because the Biome daemon tends
    log many files and contents during its lifecycle. This means that if your editor is open for hours (or even days), the biome-logs folder could become quite heavy. Contributed by @ematipico

  • Add support for formatting and linting CSS files from the CLI. These operations are opt-in for the time being.

    If you don't have a configuration file, you can enable these features with --css-formatter-enabled and --css-linter-enabled:

    biome check --css-formatter-enabled=true --css-linter-enabled=true ./

    Contributed by @ematipico

  • Add new CLI options to control the CSS formatting. Check the CLI reference page for more details. Contributed by @ematipico

  • Add new options --write, --fix (alias of --write) and --unsafe to the command biome lint and biome check.
    Add a new option --fix (alias of --write) to the command biome format and biome migrate.

    biome <lint|check> --<write|fix> [--unsafe]
    biome format --<write|fix>
    biome migrate --<write|fix>

    The biome <lint|check> --<write|fix> has the same behavior as biome <lint|check> --apply.
    The biome <lint|check> --<write|fix> --unsafe has the same behavior as biome <lint|check> --apply-unsafe.
    The biome format --fix has the same behavior as biome format --write.
    The biome migrate --fix has the same behavior as biome migrate --write.

    This change allows these commands to write modifications in the same options.
    With this change, the --apply and --apply-unsafe options are deprecated.

    Contributed by @unvalley

Enhancements

  • Biome now executes commands (lint, format, check and ci) on the working directory by default. #2266 Contributed by @unvalley

    - biome check .
    + biome check    # You can run the command without the path
  • biome migrate eslint now tries to convert ESLint ignore patterns into Biome ignore patterns.

    ESLint uses gitignore patterns.
    Biome now tries to convert these patterns into Biome ignore patterns.

    For example, the gitignore pattern /src is a relative path to the file in which it appears.
    Biome now recognizes this and translates this pattern to ./src.

    Contributed by @Conaclos

  • biome migrate eslint now supports the eslintIgnore field in package.json.

    ESLint allows the use of package.json as an ESLint configuration file.
    ESLint supports two fields: eslintConfig and eslintIgnore.
    Biome only supported the former. It now supports both.

    Contributed by @Conaclos

  • biome migrate eslint now propagates NodeJS errors to the user.

    This will help users to identify why Biome is unable to load some ESLint configurations.

    Contributed by @Conaclos

  • Add a new --reporter called summary. This reporter will print diagnostics in a different way, based on the tools (formatter, linter, etc.) that are executed.
    Import sorting and formatter shows the name of the files that require formatting. Instead, the linter will group the number of rules triggered and the number of errors/warnings:

    Formatter ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━
    The following files needs to be formatted:
    main.ts
    index.ts
    
    Organize Imports ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━
    The following files needs to have their imports sorted:
    main.ts
    index.ts
    
    Analyzer ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━
    Some analyzer rules were triggered
    
    Rule Name                                               Diagnostics
    lint/suspicious/noImplicitAnyLet                        12 (12 error(s), 0 warning(s), 0 info(s))
    lint/suspicious/noDoubleEquals                          8 (8 error(s), 0 warning(s), 0 info(s))
    lint/suspicious/noRedeclare                             12 (12 error(s), 0 warning(s), 0 info(s))
    lint/suspicious/noDebugger                              20 (20 error(s), 0 warning(s), 0 info(s))
    

    Contributed by @ematipico

  • biome ci now enforces printing the output using colours. If you were previously using --colors=force, you can remove it because it's automatically set. Contributed by @ematipico

Configuration

New features

  • Add an rule option fix to override the code fix kind of a rule (#2882).

    A rule can provide a safe or an unsafe code action.
    You can now tune the kind of code actions thanks to the fix option.
    This rule option takes a value among:

    • none: the rule no longer emits code actions.
    • safe: the rule emits safe code action.
    • unsafe: the rule emits unsafe code action.

    The following configuration disables the code actions of noUnusedVariables, makes the emitted code actions of style/useConst and style/useTemplate unsafe and safe respectively.

    {
      "linter": {
        "rules": {
          "correctness": {
            "noUnusedVariables": {
              "level": "error",
              "fix": "none"
            },
            "style": {
              "useConst": {
                "level": "warn",
                "fix": "unsafe"
              },
              "useTemplate": {
                "level": "warn",
                "fix": "safe"
              }
            }
          }
        }
      }
    }

    Contributed by @Conaclos

  • Add option javascript.linter.enabled to control the linter for JavaScript (and its super languages) files. Contributed by @ematipico

  • Add option json.linter.enabled to control the linter for JSON (and its super languages) files. Contributed by @ematipico

  • Add option css.linter.enabled to control the linter for CSS (and its super languages) files. Contributed by @ematipico

  • Add option css.formatter, to control the formatter options for CSS (and its super languages) files. Contributed by @ematipico

Enhancements

  • The javascript.formatter.trailingComma option is deprecated and renamed to javascript.formatter.trailingCommas. The corresponding CLI option --trailing-comma is also deprecated and renamed to --trailing-commas. Details can be checked in #2492. Contributed by @Sec-ant

Editors

New features

  • Add support for LSP Workspaces

Bug fixes

  • Fixes #2781, by correctly computing the configuration to apply to a specific file. Contributed by @ematipico

Formatter

Bug fixes

  • Fix #2470 by avoid introducing linebreaks in single line string interpolations. Contributed by @ah-yu
  • Resolve deadlocks by narrowing the scope of locks. Contributed by @mechairoi
  • Fix #2782 by computing the enabled rules by taking the override settings into consideration. Contributed by @ematipico

JavaScript APIs

Linter

New features

Read more

JavaScript APIs v0.6.0-nightly.af70ac2

23 May 04:38
af70ac2
Compare
Choose a tag to compare
Pre-release

Analyzer

Enhancements

  • Assume Vue compiler macros are globals when processing .vue files. (#2771) Contributed by @dyc3

CLI

New features

  • Add a new option --rule to the command biome lint (#58).

    This new option allows you to execute a single rule or a rule group.
    This option is convenient to test a rule or apply the code fixes of a single rule.

    For example, you can execute the style/useNamingConvention rule on the working directory:

    biome lint --rule=style/useNamingConvention ./

    If the rule has a code action (autofix), you can use --apply to apply the fix:

    biome lint --rule=style/useNamingConvention --apply ./

    The option takes the rule options in the Biome configuration file into account.
    Only, the severity level of the rule is overridden by its default value,
    i.e. error for a recommended rule or warn otherwise.

    You can also run a group of rules:

    biome lint --rule=suspicious src/main.js

    In this case, the severity level of a rule is not overridden.
    Thus, the disabled rules stay disabled.
    To ensure that the group is run, the recommended field of the group is turned on.
    The nursery group cannot be passed because no rules are enabled in the nursery group by default.

    The option is compatible with other options such as --apply, --apply-unsafe and --reporter.

    Contributed by @Conaclos

  • Add new command biome clean. Use this command to purge all the logs emitted by the Biome daemon. This command is really useful, because the Biome daemon tends
    log many files and contents during its lifecycle. This means that if your editor is open for hours (or even days), the biome-logs folder could become quite heavy. Contributed by @ematipico

  • Add support for formatting and linting CSS files from the CLI. These operations are opt-in for the time being.

    If you don't have a configuration file, you can enable these features with --css-formatter-enabled and --css-linter-enabled:

    biome check --css-formatter-enabled=true --css-linter-enabled=true ./

    Contributed by @ematipico

  • Add new CLI options to control the CSS formatting. Check the CLI reference page for more details. Contributed by @ematipico

  • Add new options --write, --fix (alias of --write) and --unsafe to the command biome lint and biome check.
    Add a new option --fix (alias of --write) to the command biome format and biome migrate.

    biome <lint|check> --<write|fix> [--unsafe]
    biome format --<write|fix>
    biome migrate --<write|fix>

    The biome <lint|check> --<write|fix> has the same behavior as biome <lint|check> --apply.
    The biome <lint|check> --<write|fix> --unsafe has the same behavior as biome <lint|check> --apply-unsafe.
    The biome format --fix has the same behavior as biome format --write.
    The biome migrate --fix has the same behavior as biome migrate --write.

    This change allows these commands to write modifications in the same options.
    With this change, the --apply and --apply-unsafe options are deprecated.

    Contributed by @unvalley

Enhancements

  • Biome now executes commands (lint, format, check and ci) on the working directory by default. #2266 Contributed by @unvalley

    - biome check .
    + biome check    # You can run the command without the path
  • biome migrate eslint now tries to convert ESLint ignore patterns into Biome ignore patterns.

    ESLint uses gitignore patterns.
    Biome now tries to convert these patterns into Biome ignore patterns.

    For example, the gitignore pattern /src is a relative path to the file in which it appears.
    Biome now recognizes this and translates this pattern to ./src.

    Contributed by @Conaclos

  • biome migrate eslint now supports the eslintIgnore field in package.json.

    ESLint allows the use of package.json as an ESLint configuration file.
    ESLint supports two fields: eslintConfig and eslintIgnore.
    Biome only supported the former. It now supports both.

    Contributed by @Conaclos

  • biome migrate eslint now propagates NodeJS errors to the user.

    This will help users to identify why Biome is unable to load some ESLint configurations.

    Contributed by @Conaclos

  • Add a new --reporter called summary. This reporter will print diagnostics in a different way, based on the tools (formatter, linter, etc.) that are executed.
    Import sorting and formatter shows the name of the files that require formatting. Instead, the linter will group the number of rules triggered and the number of errors/warnings:

    Formatter ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━
    The following files needs to be formatted:
    main.ts
    index.ts
    
    Organize Imports ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━
    The following files needs to have their imports sorted:
    main.ts
    index.ts
    
    Analyzer ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━
    Some analyzer rules were triggered
    
    Rule Name                                               Diagnostics
    lint/suspicious/noImplicitAnyLet                        12 (12 error(s), 0 warning(s), 0 info(s))
    lint/suspicious/noDoubleEquals                          8 (8 error(s), 0 warning(s), 0 info(s))
    lint/suspicious/noRedeclare                             12 (12 error(s), 0 warning(s), 0 info(s))
    lint/suspicious/noDebugger                              20 (20 error(s), 0 warning(s), 0 info(s))
    

    Contributed by @ematipico

  • biome ci now enforces printing the output using colours. If you were previously using --colors=force, you can remove it because it's automatically set. Contributed by @ematipico

Configuration

New features

  • Add an rule option fix to override the code fix kind of a rule (#2882).

    A rule can provide a safe or an unsafe code action.
    You can now tune the kind of code actions thanks to the fix option.
    This rule option takes a value among:

    • none: the rule no longer emits code actions.
    • safe: the rule emits safe code action.
    • unsafe: the rule emits unsafe code action.

    The following configuration disables the code actions of noUnusedVariables, makes the emitted code actions of style/useConst and style/useTemplate unsafe and safe respectively.

    {
      "linter": {
        "rules": {
          "correctness": {
            "noUnusedVariables": {
              "level": "error",
              "fix": "none"
            },
            "style": {
              "useConst": {
                "level": "warn",
                "fix": "unsafe"
              },
              "useTemplate": {
                "level": "warn",
                "fix": "safe"
              }
            }
          }
        }
      }
    }

    Contributed by @Conaclos

  • Add option javascript.linter.enabled to control the linter for JavaScript (and its super languages) files. Contributed by @ematipico

  • Add option json.linter.enabled to control the linter for JSON (and its super languages) files. Contributed by @ematipico

  • Add option css.linter.enabled to control the linter for CSS (and its super languages) files. Contributed by @ematipico

  • Add option css.formatter, to control the formatter options for CSS (and its super languages) files. Contributed by @ematipico

Enhancements

  • The javascript.formatter.trailingComma option is deprecated and renamed to javascript.formatter.trailingCommas. The corresponding CLI option --trailing-comma is also deprecated and renamed to --trailing-commas. Details can be checked in #2492. Contributed by @Sec-ant

Editors

New features

  • Add support for LSP Workspaces

Bug fixes

  • Fixes #2781, by correctly computing the configuration to apply to a specific file. Contributed by @ematipico

Formatter

Bug fixes

  • Fix #2470 by avoid introducing linebreaks in single line string interpolations. Contributed by @ah-yu
  • Resolve deadlocks by narrowing the scope of locks. Contributed by @mechairoi
  • Fix #2782 by computing the enabled rules by taking the override settings into consideration. Contributed by @ematipico

JavaScript APIs

Linter

New features

Read more

CLI v1.7.3

06 May 10:11
b9f90b7
Compare
Choose a tag to compare

CLI

Bug fixes

  • The stdin-file-path option now works correctly for Astro/Svelte/Vue files (#2686)

    Fix #2225 where lint output become empty for Vue files.

    Contributed by @tasshi-me

  • biome migrate eslint now correctly resolve @scope/eslint-config (#2705). Contributed by @Conaclos

Linter

New features

Bug fixes

  • noBlankTarget no longer hangs when applying a code fix (#2675).

    Previously, the following code made Biome hangs when applying a code fix.

    <a href="https://example.com" rel="" target="_blank"></a>

    Contributed by @Conaclos

  • noRedeclare no longer panics on conditional type (#2659).

    This is a regression introduced by #2394.
    This regression makes noRedeclare panics on every conditional types with infer bindings.

    Contributed by @Conaclos

  • noUnusedLabels and noConfusingLabels now ignore svelte reactive statements (#2571).

    The rules now ignore reactive Svelte blocks in Svelte components.

    <script>
    $: { /* reactive block */ }
    </script>

    Contributed by @Conaclos

  • useExportType no longer removes leading comments (#2685).

    Previously, useExportType removed leading comments when it factorized the type qualifier.
    It now provides a code fix that preserves the leading comments:

    - export {
    + export type {
        /**leading comment*/
    -   type T
    +   T
      }

    Contributed by @Conaclos

  • useJsxKeyInIterable no longer reports false positive when iterating on non-jsx items (#2590).

    The following snipet of code no longer triggers the rule:

    <>{data.reduce((total, next) => total + next, 0)}</>

    Contributed by @dyc3

  • Fix typo by renaming useConsistentBuiltinInstatiation to useConsistentBuiltinInstantiation
    Contributed by @minht11

What's Changed

Other changes

New Contributors

Full Changelog: cli/v1.7.2...cli/v1.7.3

CLI v1.7.2

30 Apr 12:49
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Analyzer

Bug fixes

  • Import sorting now ignores side effect imports (#817).

    A side effect import consists now in its own group.
    This ensures that side effect imports are not reordered.

    Here is an example of how imports are now sorted:

      import "z"
    - import { D } from "d";
      import { C } from "c";
    + import { D } from "d";
      import "y"
      import "x"
    - import { B } from "b";
      import { A } from "a";
    + import { B } from "b";
      import "w"

    Contributed by @Conaclos

  • Import sorting now adds spaces where needed (#1665)
    Contributed by @Conaclos

CLI

Bug fixes

  • biome migrate eslint now handles cyclic references.

    Some plugins and configurations export objects with cyclic references.
    This causes biome migrate eslint to fail or ignore them.
    These edge cases are now handled correctly.

    Contributed by @Conaclos

Formatter

Bug fixes

  • Correctly handle placement of comments inside named import clauses. #2566. Contributed by @ah-yu

Linter

New features

Bug fixes

  • noDuplicateJsonKeys no longer crashes when a JSON file contains an unterminated string (#2357).
    Contributed by @Conaclos

  • noRedeclare now reports redeclarations of parameters in a functions body (#2394).

    The rule was unable to detect redeclarations of a parameter or type parameter in the function body.
    The following two redeclarations are now reported:

    function f<T>(a) {
      type T = number; // redeclaration
      const a = 0; // redeclaration
    }

    Contributed by @Conaclos

  • noRedeclare no longer reports overloads in object types (#2608).

    The rule no longer report redeclarations in the following code:

    type Overloads = {
      ({ a }: { a: number }): number,
      ({ a }: { a: string }): string,
    };

    Contributed by @Conaclos

  • noRedeclare now merge default function export declarations and types (#2372).

    The following code is no longer reported as a redeclaration:

    interface Foo {}
    export default function Foo() {}

    Contributed by @Conaclos

  • noUndeclaredVariables no longer reports variable-only and type-only exports (#2637).
    Contributed by @Conaclos

  • [noUnusedVariables] no longer crash Biome when encountering a malformed conditional type (#1695).
    Contributed by @Conaclos

  • useConst now ignores a variable that is read before its assignment.

    Previously, the rule reported the following example:

    let x;
    x; // read
    x = 0; // write

    It is now correctly ignored.

    Contributed by @Conaclos

  • useShorthandFunctionType now suggests correct code fixes when parentheses are required (#2595).

    Previously, the rule didn't add parentheses when they were needed.
    It now adds parentheses when the function signature is inside an array, a union, or an intersection.

    - type Union = { (): number } | string;
    + type Union = (() => number) | string;

    Contributed by @Conaclos

  • useTemplate now correctly escapes strings (#2580).

    Previously, the rule didn't correctly escape characters preceded by an escaped character.

    Contributed by @Conaclos

  • noMisplacedAssertion now allow these matchers

    • expect.any()
    • expect.anything()
    • expect.closeTo
    • expect.arrayContaining
    • expect.objectContaining
    • expect.stringContaining
    • expect.stringMatching
    • expect.extend
    • expect.addEqualityTesters
    • expect.addSnapshotSerializer

    Contributed by @fujiyamaorange

Parser

Bug fixes

  • The language parsers no longer panic on unterminated strings followed by a newline and a space (#2606, #2410).

    The following example is now parsed without making Biome panics:

    "
     "
    

    Contributed by @Conaclos

What's Changed

Other changes

  • build(xstask): remove deps fs_extra and filetime by @Conaclos in #2562
  • docs: Add more useImportType examples to docs by @drwpow in #2307
  • chore: update schema definition by @Mayandev in #2567
  • fix(configuration_schema): rename some fields to camelCase in the configuration_schema.json by @ah-yu in #2568
  • fix: rename some fileds to camelCase in the configuration_schema by @ah-yu in #2569
  • feat(biome_css_analyzer): noUnknownUnit by @neokidev in #2535
  • chore: fix some typos in comments by @hardlydearly in #2579
  • refactor: foundations for LSP workspaces support by @ematipico in #2589
  • fix(lint/noRedundantAlt): rule source by @Conaclos in #2609
  • feat(linter): Implement useGenericFontNames by @togami2864 in #2573
  • chore: remove some website leftovers by @SuperchupuDev in #2617
  • refactor(deserialize): don't handle Option specifically by @Conaclos in #2630
  • refactor: use TriviaPiece factory functions in more places by @minht11 in #2632
  • feat(biome_css_analyzer): noUnknownFunction by @neokidev in #2570
  • fix(snippet): should emit only one diagnostic by @Sec-ant in #2650
  • chore: add infrastructure for Grit engine by @arendjr in #2586
  • docs: fix typos in biome_rowan batch mutation by @vohoanglong0107 in #2653
  • chore: upgrade prettier and update snapshots by @ah-yu in #2502
  • build(deps): update by @Conaclos in #2657

New Contributors

Full Changelog: cli/v1.7.1...cli/v1.7.2