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📝 Mismatch between formatting in CLI and stdin #6419

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#6467
#6461
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📝 Mismatch between formatting in CLI and stdin#6419
Bug
#6467
#6461
Assignees
ematipico
Labels
A-CLIArea: CLIS-Bug-confirmedStatus: report has been confirmed as a valid bug
@believer

Description

@believer
believer
opened on Jun 19, 2025

Issue

Documented in the reproduction repository's readme. It's a problem that occurs when trying to format files using conform.nvim which uses stdin to format files. It might be something that overrides doesn't work the same in v2 as it did in v1?

Reproduction

This is a problem that occurs in Neovim when trying to format a file using conform.nvim which uses stdin to format files.

  1. Run ./node_modules/.bin/biome check apps/test/index.tsx. Reports one error.
apps/test/index.tsx format ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━

  ✖ Formatter would have printed the following content:

    1   │ - const·_t·=·[
    2   │ - ··colors.l3BackgroundTertiary,
    3   │ - ··colors.l3BackgroundPositive,
    4   │ - ··colors.l3BackgroundTertiary,
    5   │ - ]
      1 │ + const·_t·=·[colors.l3BackgroundTertiary,·colors.l3BackgroundPositive,·colors.l3BackgroundTertiary]
    6 2 │


Checked 4 files in 18ms. No fixes applied.
Found 1 error.
  1. Run cat apps/test/index.tsx | ./node_modules/.bin/biome check --stdin-file-path=apps/test/index.tsx. Reports that nothing would change with --write.
const _t = [
  colors.l3BackgroundTertiary,
  colors.l3BackgroundPositive,
  colors.l3BackgroundTertiary,
]
stdin ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━

  ✖ The contents aren't fixed. Use the `--write` flag to fix them.

Running with --log-level=debug

For the regular check we have the following. Here it gets the correct configuration for the file.

2025-06-19T13:21:35.401375Z  INFO main crates/biome_cli/src/commands/mod.rs: Configuration file loaded: Some("/Users/rickard/code/biome-repro-1750338456375/biome.json"), diagnostics detected 0
2025-06-19T13:21:35.403261Z DEBUG main insert_project: crates/biome_service/src/projects.rs: Insert workspace folder /Users/rickard/code/biome-repro-1750338456375
2025-06-19T13:21:35.404514Z DEBUG main crates/biome_service/src/projects.rs: Get settings for /Users/rickard/code/biome-repro-1750338456375/package.json 0
2025-06-19T13:21:35.405682Z DEBUG biome::workspace_worker_0 can_handle: crates/biome_service/src/projects.rs: Get settings for /Users/rickard/code/biome-repro-1750338456375/apps/test/index.tsx 0
2025-06-19T13:21:35.405830Z DEBUG biome::workspace_worker_0 can_handle:with_settings_and_language: crates/biome_service/src/workspace.rs: The file has the following feature sets: {Assist: Supported, Search: Supported, Debug: Supported, Lint: Supported, Format: Supported} path="/Users/rickard/code/biome-repro-1750338456375/apps/test/index.tsx"
2025-06-19T13:21:35.405847Z DEBUG biome::workspace_worker_0 can_handle: crates/biome_service/src/projects.rs: Get settings for /Users/rickard/code/biome-repro-1750338456375/apps/test/index.tsx 0
2025-06-19T13:21:35.406054Z DEBUG biome::workspace_worker_0 crates/biome_service/src/projects.rs: Get settings for /Users/rickard/code/biome-repro-1750338456375/apps/test/index.tsx 0
2025-06-19T13:21:35.406060Z DEBUG biome::workspace_worker_0 with_settings_and_language: crates/biome_service/src/workspace.rs: The file has the following feature sets: {Lint: Supported, Format: Supported, Assist: Supported, Search: Supported, Debug: Supported} path="/Users/rickard/code/biome-repro-1750338456375/apps/test/index.tsx"
2025-06-19T13:21:35.406062Z DEBUG biome::workspace_worker_0 crates/biome_service/src/projects.rs: Get settings for /Users/rickard/code/biome-repro-1750338456375/apps/test/index.tsx 0
2025-06-19T13:21:35.406312Z DEBUG biome::workspace_worker_0 crates/biome_service/src/projects.rs: Get settings for /Users/rickard/code/biome-repro-1750338456375/apps/test/index.tsx 0
2025-06-19T13:21:35.407729Z DEBUG biome::workspace_worker_0 cli_lint_guard:pull_diagnostics: crates/biome_service/src/projects.rs: Get settings for /Users/rickard/code/biome-repro-1750338456375/apps/test/index.tsx 0 rule_categories=[Syntax, Lint, Action] path=/Users/rickard/code/biome-repro-1750338456375/apps/test/index.tsx project_key=ProjectKey(1) skip=[] only=[]
2025-06-19T13:21:35.417035Z  INFO biome::workspace_worker_0 cli_lint_guard:pull_diagnostics: crates/biome_service/src/workspace/server.rs: Pulled 0 diagnostic(s), skipped 0 diagnostic(s) from /Users/rickard/code/biome-repro-1750338456375/apps/test/index.tsx rule_categories=[Syntax, Lint, Action] path=/Users/rickard/code/biome-repro-1750338456375/apps/test/index.tsx project_key=ProjectKey(1) skip=[] only=[]
2025-06-19T13:21:35.417213Z DEBUG biome::workspace_worker_0 format_with_guard:pull_diagnostics: crates/biome_service/src/projects.rs: Get settings for /Users/rickard/code/biome-repro-1750338456375/apps/test/index.tsx 0 rule_categories=[Syntax] path=/Users/rickard/code/biome-repro-1750338456375/apps/test/index.tsx project_key=ProjectKey(1) skip=[] only=[]
2025-06-19T13:21:35.417383Z  INFO biome::workspace_worker_0 format_with_guard:pull_diagnostics: crates/biome_service/src/workspace/server.rs: Pulled 0 diagnostic(s), skipped 0 diagnostic(s) from /Users/rickard/code/biome-repro-1750338456375/apps/test/index.tsx rule_categories=[Syntax] path=/Users/rickard/code/biome-repro-1750338456375/apps/test/index.tsx project_key=ProjectKey(1) skip=[] only=[]
2025-06-19T13:21:35.417407Z DEBUG biome::workspace_worker_0 format_with_guard:format_file: crates/biome_service/src/projects.rs: Get settings for /Users/rickard/code/biome-repro-1750338456375/apps/test/index.tsx 0 path=/Users/rickard/code/biome-repro-1750338456375/apps/test/index.tsx
2025-06-19T13:21:35.417440Z DEBUG biome::workspace_worker_0 format_with_guard:format_file: crates/biome_service/src/file_handlers/javascript.rs: JsFormatOptions { indent_style: Space, indent_width: 2, line_ending: Lf, line_width: 100, quote_style: Single, jsx_quote_style: Double, quote_properties: AsNeeded, trailing_commas: Es5, semicolons: AsNeeded, arrow_parentheses: Always, bracket_spacing: BracketSpacing(true), bracket_same_line: BracketSameLine(false), source_type: JsFileSource { language: TypeScript { definition_file: false }, variant: Jsx, module_kind: Module, version: ES2022, embedding_kind: None }, attribute_position: Auto, expand: Auto } path=/Users/rickard/code/biome-repro-1750338456375/apps/test/index.tsx
2025-06-19T13:21:35.418984Z DEBUG biome::workspace_worker_0 format_with_guard: crates/biome_cli/src/execute/process_file/format.rs: Format output is different from input: true

Using stdin it doesn't seem to resolve the correct configuration and uses line_width: 80, which would indicate why it doesn't want to format the code above.

2025-06-19T13:20:25.095485Z  INFO main crates/biome_cli/src/commands/mod.rs: Configuration file loaded: Some("/Users/rickard/code/biome-repro-1750338456375/biome.json"), diagnostics detected 0
2025-06-19T13:20:25.099132Z DEBUG main insert_project: crates/biome_service/src/projects.rs: Insert workspace folder /Users/rickard/code/biome-repro-1750338456375
2025-06-19T13:20:25.101514Z DEBUG main crates/biome_service/src/projects.rs: Get settings for /Users/rickard/code/biome-repro-1750338456375/package.json 0
2025-06-19T13:20:25.102527Z DEBUG main crates/biome_service/src/projects.rs: Get settings for __BIOME_INTERNAL_FILE__.tsx 0
2025-06-19T13:20:25.104583Z DEBUG main crates/biome_service/src/projects.rs: Get settings for apps/test/index.tsx 0
2025-06-19T13:20:25.104808Z DEBUG main with_settings_and_language: crates/biome_service/src/workspace.rs: The file has the following feature sets: {Search: Supported, Format: Supported, Debug: Supported, Lint: Supported, Assist: Supported} path="apps/test/index.tsx"
2025-06-19T13:20:25.104911Z DEBUG main crates/biome_service/src/projects.rs: Get settings for apps/test/index.tsx 0
2025-06-19T13:20:25.105145Z DEBUG main format_file: crates/biome_service/src/projects.rs: Get settings for __BIOME_INTERNAL_FILE__.tsx 0 path=__BIOME_INTERNAL_FILE__.tsx
2025-06-19T13:20:25.105265Z DEBUG main format_file: crates/biome_service/src/file_handlers/javascript.rs: JsFormatOptions { indent_style: Space, indent_width: 2, line_ending: Lf, line_width: 80, quote_style: Single, jsx_quote_style: Double, quote_properties: AsNeeded, trailing_commas: Es5, semicolons: AsNeeded, arrow_parentheses: Always, bracket_spacing: BracketSpacing(true), bracket_same_line: BracketSameLine(false), source_type: JsFileSource { language: TypeScript { definition_file: false }, variant: Jsx, module_kind: Module, version: ES2022, embedding_kind: None }, attribute_position: Auto, expand: Auto } path=__BIOME_INTERNAL_FILE__.tsx

Environment information

CLI:
  Version:                      2.0.0
  Color support:                true

Platform:
  CPU Architecture:             aarch64
  OS:                           macos

Environment:
  BIOME_LOG_PATH:               unset
  BIOME_LOG_PREFIX_NAME:        unset
  BIOME_CONFIG_PATH:            unset
  BIOME_THREADS:                unset
  NO_COLOR:                     unset
  TERM:                         xterm-256color
  JS_RUNTIME_VERSION:           v18.20.2
  JS_RUNTIME_NAME:              node
  NODE_PACKAGE_MANAGER:         unset

Biome Configuration:
  Status:                       Loaded successfully
  Path:                         biome.json
  Formatter enabled:            true
  Linter enabled:               true
  Assist enabled:               true
  VCS enabled:                  false

Formatter:
  Format with errors:           unset
  Indent style:                 Space
  Indent width:                 unset
  Line ending:                  unset
  Line width:                   unset
  Attribute position:           unset
  Bracket spacing:              unset
  Includes:                     unset

JavaScript Formatter:
  Enabled:                      unset
  JSX quote style:              unset
  Quote properties:             unset
  Trailing commas:              ES5
  Semicolons:                   As needed
  Arrow parentheses:            Always
  Bracket spacing:              unset
  Bracket same line:            unset
  Quote style:                  Single Quotes
  Indent style:                 unset
  Indent width:                 unset
  Line ending:                  unset
  Line width:                   unset
  Attribute position:           unset

JSON Formatter:
  Enabled:                      unset
  Indent style:                 unset
  Indent width:                 unset
  Line ending:                  unset
  Line width:                   unset
  Trailing Commas:              unset
  Expand lists:                 unset

CSS Formatter:
  Enabled:                      unset
  Indent style:                 unset
  Indent width:                 unset
  Line ending:                  unset
  Line width:                   unset
  Quote style:                  unset

GraphQL Formatter:
  Enabled:                      unset
  Indent style:                 unset
  Indent width:                 unset
  Line ending:                  unset
  Line width:                   unset
  Bracket spacing:              unset
  Quote style:                  unset

Workspace:
  Open Documents:               0

Configuration

{
  "$schema": "./node_modules/@biomejs/biome/configuration_schema.json",
  "linter": {
    "enabled": true,
    "rules": {
      "recommended": true
    }
  },
  "formatter": {
    "indentStyle": "space"
  },
  "javascript": {
    "formatter": {
      "quoteStyle": "single",
      "semicolons": "asNeeded",
      "arrowParentheses": "always",
      "trailingCommas": "es5"
    }
  },
  "overrides": [
    {
      "includes": ["apps/test/**"],
      "javascript": {
        "formatter": {
          "lineWidth": 100
        }
      }
    }
  ]
}

Playground link

https://github.com/believer/biome-repro-stdin

Code of Conduct

  • I agree to follow Biome's Code of Conduct

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