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Changelog

All notable changes to the vscode-common-python-lsp package will be documented in this file.

The format is based on Keep a Changelog, and this project adheres to Semantic Versioning.

[0.8.0] - 2026-06-25

Added

  • TypeScript ToolConfig.refreshExtensionOnPackagesChange — opt-in key that, when set to true, makes the shared activation logic restart the language server whenever the active environment's package managers report a package change (install/uninstall). The provider subscribes to the underlying IPythonApi.onDidChangePackages event once during initialization. The key defaults to false, so existing extensions are unaffected until they opt in. The legacy ms-python.python extension does not expose package events, so this has no effect unless the Python Environments extension is available.

[0.7.0] - 2026-06-17

Added

  • TypeScript ToolConfig.isFormatter — optional boolean flag for tool extensions that provide LSP-based document formatting (textDocument/formatting, rangeFormatting, rangesFormatting).

  • TypeScript NullFormatter class — a lifecycle-aware placeholder DocumentFormattingEditProvider. It registers a no-op formatter at activation time (so VS Code lists the extension in the formatter picker before the LSP has finished starting) and exposes register(), unregister(), isRegistered(), and dispose() for manual control. Exported from the package root.

  • TypeScript createToolContext — when ToolConfig.isFormatter is true, the shared activation pattern now automatically:

    • registers the NullFormatter placeholder immediately at activation,
    • disposes it when the language client transitions to State.Running (including the "already Running" case where the initial transition would otherwise be missed),
    • re-registers it if the client later transitions to State.Stopped or State.Starting (e.g. during a restart), and disposes it again on the next Running,
    • disposes it on ctx.dispose() / deactivateServer().

    This fixes the "duplicate formatter entry" regression reported in microsoft/vscode-black-formatter#752 and unblocks the same fix for other formatter extensions (vscode-autopep8, vscode-isort, …).

    Linter-only extensions (pylint, flake8, mypy, …) are unaffected — the placeholder is not registered when isFormatter is false or unset.

[0.6.1] - 2026-06-17

Fixed

  • TypeScript getServerCwd: Broadened the per-document variable guard from a hardcoded ${file…} / ${relativeFile…} allowlist to a general ${…} check. Any token still unresolved at spawn-time (including tool-specific tokens like mypy's ${nearestConfig}) now correctly falls back to the workspace path instead of being passed verbatim to child_process.spawn, which caused an ENOENT error. (Fixes microsoft/vscode-mypy#556)

[0.4.0] - 2026-05-01

Added

  • Python: update_environ_path() — adds the virtual environment's scripts directory to PATH, ensuring tool executables are discoverable.

[0.1.0] - 2025-04-20

Added

  • TypeScript: Logging utilities (createOutputChannel, traceLog, traceError, traceWarn, traceInfo, traceVerbose)
  • TypeScript: Language status item registration and update helpers
  • TypeScript: Server setup with loadServerDefaults for bundled Python server discovery
  • TypeScript: Configuration file watcher factory (createConfigFileWatchers)
  • TypeScript: VS Code API wrappers (getConfiguration, getWorkspaceFolders, etc.)
  • TypeScript: Utility functions (resource URI helpers, getProjectRoot, interpreter/document checks)
  • TypeScript: .env file parser (getEnvVariables)
  • TypeScript: Full settings resolution pipeline (IBaseSettings, getExtensionSettings, getGlobalSettings, getWorkspaceSettings)
  • TypeScript: Python environment provider (PythonEnvironmentsProvider) with interpreter change events
  • TypeScript: Language server lifecycle management (createServer, restartServer)
  • TypeScript: Extension activation pattern (activateExtension) with common subscriptions
  • TypeScript: LSP handler registration helpers for document sync, formatting, code actions
  • Python: LSP utilities (shutdown_json_rpc, choose_working_directory, file classification)
  • Python: JSON-RPC runner infrastructure (JsonRpc, run_over_json_rpc, get_or_start_json_rpc)
  • Python: Notebook cell-aware diagnostic mapping (notebook_document_change, notebook_did_open)
  • Python: Subprocess message loop runner (run_message_loop, RunResult)
  • Python: Code action / quick-fix edit builder (build_quick_fix_edit, QuickFixRegistrationError)
  • Python: Diagnostic linting version tracker (LintVersionTracker)
  • Python: Tool version detection and validation (extract_version, check_min_version)
  • Python: Server infrastructure (ToolServer, ToolServerConfig, ServerActivationConfig)