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diff --git a/docs/book/src/vs_code.md b/docs/book/src/vs_code.md new file mode 100644 index 0000000000..233b862d2c --- /dev/null +++ b/docs/book/src/vs_code.md @@ -0,0 +1,121 @@ +# VS Code + +This is the best supported editor at the moment. The rust-analyzer +plugin for VS Code is maintained [in +tree](https://github.com/rust-lang/rust-analyzer/tree/master/editors/code). + +You can install the latest release of the plugin from [the +marketplace](https://marketplace.visualstudio.com/items?itemName=rust-lang.rust-analyzer). + +Note that the plugin may cause conflicts with the [previous official +Rust +plugin](https://marketplace.visualstudio.com/items?itemName=rust-lang.rust). +The latter is no longer maintained and should be uninstalled. + +The server binary is stored in the extension install directory, which +starts with `rust-lang.rust-analyzer-` and is located under: + +- Linux: `~/.vscode/extensions` + +- Linux (Remote, such as WSL): `~/.vscode-server/extensions` + +- macOS: `~/.vscode/extensions` + +- Windows: `%USERPROFILE%\.vscode\extensions` + +As an exception, on NixOS, the extension makes a copy of the server and +stores it under +`~/.config/Code/User/globalStorage/rust-lang.rust-analyzer`. + +Note that we only support the two most recent versions of VS Code. + +### Updates + +The extension will be updated automatically as new versions become +available. It will ask your permission to download the matching language +server version binary if needed. + +#### Nightly + +We ship nightly releases for VS Code. To help us out by testing the +newest code, you can enable pre-release versions in the Code extension +page. + +### Manual installation + +Alternatively, download a VSIX corresponding to your platform from the +[releases](https://github.com/rust-lang/rust-analyzer/releases) page. + +Install the extension with the `Extensions: Install from VSIX` command +within VS Code, or from the command line via: + + $ code --install-extension /path/to/rust-analyzer.vsix + +If you are running an unsupported platform, you can install +`rust-analyzer-no-server.vsix` and compile or obtain a server binary. +Copy the server anywhere, then add the path to your settings.json, for +example: + +```json +{ "rust-analyzer.server.path": "~/.local/bin/rust-analyzer-linux" } +``` + +### Building From Source + +Both the server and the Code plugin can be installed from source: + + $ git clone https://github.com/rust-lang/rust-analyzer.git && cd rust-analyzer + $ cargo xtask install + +You’ll need Cargo, nodejs (matching a supported version of VS Code) and +npm for this. + +Note that installing via `xtask install` does not work for VS Code +Remote, instead you’ll need to install the `.vsix` manually. + +If you’re not using Code, you can compile and install only the LSP +server: + + $ cargo xtask install --server + +Make sure that `.cargo/bin` is in `$PATH` and precedes paths where +`rust-analyzer` may also be installed. Specifically, `rustup` includes a +proxy called `rust-analyzer`, which can cause problems if you’re +planning to use a source build or even a downloaded binary. + +## VS Code or VSCodium in Flatpak + +Setting up `rust-analyzer` with a Flatpak version of Code is not trivial +because of the Flatpak sandbox. While the sandbox can be disabled for +some directories, `/usr/bin` will always be mounted under +`/run/host/usr/bin`. This prevents access to the system’s C compiler, a +system-wide installation of Rust, or any other libraries you might want +to link to. Some compilers and libraries can be acquired as Flatpak +SDKs, such as `org.freedesktop.Sdk.Extension.rust-stable` or +`org.freedesktop.Sdk.Extension.llvm15`. + +If you use a Flatpak SDK for Rust, it must be in your `PATH`: + + * install the SDK extensions with `flatpak install org.freedesktop.Sdk.Extension.{llvm15,rust-stable}//23.08` + * enable SDK extensions in the editor with the environment variable `FLATPAK_ENABLE_SDK_EXT=llvm15,rust-stable` (this can be done using flatseal or `flatpak override`) + +If you want to use Flatpak in combination with `rustup`, the following +steps might help: + +- both Rust and `rustup` have to be installed using + <https://rustup.rs>. Distro packages *will not* work. + +- you need to launch Code, open a terminal and run `echo $PATH` + +- using + [Flatseal](https://flathub.org/apps/details/com.github.tchx84.Flatseal), + you must add an environment variable called `PATH`. Set its value to + the output from above, appending `:~/.cargo/bin`, where `~` is the + path to your home directory. You must replace `~`, as it won’t be + expanded otherwise. + +- while Flatseal is open, you must enable access to "All user files" + +A C compiler should already be available via `org.freedesktop.Sdk`. Any +other tools or libraries you will need to acquire from Flatpak. + |