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Problem: LSP spec allows response message to have a null request-id. This may happen when for example client sends unparseable request. https://github.com/microsoft/language-server-protocol/issues/196 Solution: Guard the server response branches against id=vim.NIL (json null), and handle error responses with null id by logging a warning and dispatching on error. Problem: CI (ubuntu asan, ubuntu tsan, windows) reports `uv_loop_close() hang?` from the two new null-id response tests. The leaked handle is the server-side accepted TCP socket created inside `server:listen` callback. The tests closed only the listener but not the accepted socket, so libuv could not finish shutting down the loop and each test session took ~2s extra to exit. Solution: Hoist the accepted socket to the outer `exec_lua` scope and close it at teardown before closing the listener. The close runs synchronously inside `exec_lua`, so the loop has time to dispose the handle before the session exits. * test(lsp): close accepted socket on read-loop exit/error Match the precedent in the handler test ("handler can return false as response") and the shared `_create_tcp_server` helper in `test/functional/plugin/lsp/testutil.lua`: close the accepted socket from inside the `create_read_loop` exit/error callbacks. The teardown close added in the previous commit remains as belt-and-suspenders, so the socket is disposed whether the server goes away first or the client does.
Neovim is a project that seeks to aggressively refactor Vim in order to:
- Simplify maintenance and encourage contributions
- Split the work between multiple developers
- Enable advanced UIs without modifications to the core
- Maximize extensibility
See the Introduction wiki page and Roadmap for more information.
Features
- Modern GUIs
- API access from any language including C/C++, C#, Clojure, D, Elixir, Go, Haskell, Java/Kotlin, JavaScript/Node.js, Julia, Lisp, Lua, Perl, Python, Racket, Ruby, Rust
- Embedded, scriptable terminal emulator
- Asynchronous job control
- Shared data (shada) among multiple editor instances
- XDG base directories support
- Compatible with most Vim plugins, including Ruby and Python plugins
See :help nvim-features for the full list, and :help news for noteworthy changes in the latest version!
Install from package
Pre-built packages for Windows, macOS, and Linux are found on the Releases page.
Managed packages are in Homebrew, Debian, Ubuntu, Fedora, Arch Linux, Void Linux, Gentoo, and more!
Install from source
See BUILD.md and supported platforms for details.
The build is CMake-based, but a Makefile is provided as a convenience. After installing the dependencies, run the following command.
make CMAKE_BUILD_TYPE=RelWithDebInfo
sudo make install
To install to a non-default location:
make CMAKE_BUILD_TYPE=RelWithDebInfo CMAKE_INSTALL_PREFIX=/full/path/
make install
CMake hints for inspecting the build:
cmake --build build --target helplists all build targets.build/CMakeCache.txt(orcmake -LAH build/) contains the resolved values of all CMake variables.build/compile_commands.jsonshows the full compiler invocations for each translation unit.
Transitioning from Vim
See :help nvim-from-vim for instructions.
Project layout
├─ cmake/ CMake utils
├─ cmake.config/ CMake defines
├─ cmake.deps/ subproject to fetch and build dependencies (optional)
├─ runtime/ plugins and docs
├─ src/nvim/ application source code (see src/nvim/README.md)
│ ├─ api/ API subsystem
│ ├─ eval/ Vimscript subsystem
│ ├─ event/ event-loop subsystem
│ ├─ generators/ code generation (pre-compilation)
│ ├─ lib/ generic data structures
│ ├─ lua/ Lua subsystem
│ ├─ msgpack_rpc/ RPC subsystem
│ ├─ os/ low-level platform code
│ └─ tui/ built-in UI
└─ test/ tests (see test/README.md)
License
Neovim contributions since b17d96 are licensed under the
Apache 2.0 license, except for contributions copied from Vim (identified by the
vim-patch token). See LICENSE.txt for details.