🐛 Crash when 'insert_final_newline' is set to false in .editorconfig

[lsagetlethias]

VS Code version

1.95.3

Extension version

2.3.0 & v2024.12.22126

Biome version

1.9.4

Operating system

• Windows
• macOS
• Linux

Description

On a empty project inited with biome init, when a .editorconfig have the property insert_final_newline = false, the extension crash when "useEditorconfig" is set to true.

I end up discovering this issue while running biome check . manually.

Steps to reproduce

• Create an empty project on vscode with the biome extension (stable or prerelease)
• install biome with recommended command
• run biome init
• add .editorconfig file with insert_final_newline = false
• add formatter.useEditorconfig: true in biome.json file

Restart the extension or the developer window.

Expected behavior

Even if the "insert_final_newline" property is overwritten or not used, the extension should not crash.

Does this issue occur when using the CLI directly?

No

Link to a minimal reproduction

No response

Logs

CLI:
  Version:                      1.9.4
  Color support:                true

Platform:
  CPU Architecture:             aarch64
  OS:                           macos

Environment:
  BIOME_LOG_PATH:               unset
  BIOME_LOG_PREFIX_NAME:        unset
  BIOME_CONFIG_PATH:            unset
  NO_COLOR:                     unset
  TERM:                         "xterm-256color"
  JS_RUNTIME_VERSION:           "v22.11.0"
  JS_RUNTIME_NAME:              "node"
  NODE_PACKAGE_MANAGER:         "yarn/1.22.22"

Biome Configuration:
  Status:                       Loaded successfully
  Formatter disabled:           false
  Linter disabled:              false
  Organize imports disabled:    true
  VCS disabled:                 true

Workspace:
  Open Documents:               0

Discovering running Biome servers...

Server:
  Status:                       stopped

----
(from Biome output panel in vscode)
[cli-stdout] data 73
[cli] exit 0
Connecting to "/Users/xxx/Library/Caches/dev.biomejs.biome/biome-socket-1.9.4" ...
[cli-stderr] data 393
[cli-stdout] end
[cli-stdout] finish
[Error - 11:19:54] Sending document notification textDocument/didOpen failed
Error: This socket has been ended by the other party
    at genericNodeError (node:internal/errors:984:15)
    at wrappedFn (node:internal/errors:538:14)
    at Socket.writeAfterFIN [as write] (node:net:562:14)
    at /Users/xxx/.vscode/extensions/biomejs.biome-2.3.0/out/main.js:3008:25
    at new Promise (<anonymous>)
    at WritableStreamWrapper.write (/Users/xxx/.vscode/extensions/biomejs.biome-2.3.0/out/main.js:2999:16)
    at StreamMessageWriter.doWrite (/Users/xxx/.vscode/extensions/biomejs.biome-2.3.0/out/main.js:1429:31)
    at /Users/xxx/.vscode/extensions/biomejs.biome-2.3.0/out/main.js:1420:25
[cli-stdout] close
[Info  - 11:19:54] Connection to server got closed. Server will restart.
true
[cli-stderr] end
[cli-stderr] finish
[cli] close 0
[cli-stderr] close