1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
|
The main interface to rust-analyzer is the
[LSP](https://microsoft.github.io/language-server-protocol/) implementation. To
install lsp server, use `cargo install-ra --server`, which is a shorthand for `cargo
install --package ra_lsp_server`. The binary is named `ra_lsp_server`, you
should be able to use it with any LSP-compatible editor. We use custom
extensions to LSP, so special client-side support is required to take full
advantage of rust-analyzer. This repository contains support code for VS Code
and Emacs.
Rust Analyzer needs sources of rust standard library to work, so you might need
to execute
```
$ rustup component add rust-src
```
See [./features.md](./features.md) document for a list of features that are available.
## VS Code
Prerequisites:
In order to build the VS Code plugin, you need to have node.js and npm with
a minimum version of 10 installed. Please refer to
[node.js and npm documentation](https://nodejs.org) for installation instructions.
You will also need the most recent version of VS Code: we don't try to
maintain compatibility with older versions yet.
The experimental VS Code plugin can then be built and installed by executing the
following commands:
```
$ git clone https://github.com/rust-analyzer/rust-analyzer.git --depth 1
$ cd rust-analyzer
$ cargo install-ra
```
The automatic installation is expected to *just work* for common cases, if it
doesn't, report bugs!
If you have an unusual setup (for example, `code` is not in the `PATH`), you
should adapt these manual installation instructions:
```
$ git clone https://github.com/rust-analyzer/rust-analyzer.git --depth 1
$ cd rust-analyzer
$ cargo install --path ./crates/ra_lsp_server/ --force --locked
$ cd ./editors/code
$ npm install
$ ./node_modules/vsce/out/vsce package
$ code --install-extension ./ra-lsp-0.0.1.vsix
```
It's better to remove existing Rust plugins to avoid interference.
Beyond basic LSP features, there are some extension commands which you can
invoke via <kbd>Ctrl+Shift+P</kbd> or bind to a shortcut. See [./features.md](./features.md)
for details.
For updates, pull the latest changes from the master branch, run `cargo install-ra` again, and **restart** VS Code instance.
See [microsoft/vscode#72308](https://github.com/microsoft/vscode/issues/72308) for why a full restart is needed.
### Settings
* `rust-analyzer.highlightingOn`: enables experimental syntax highlighting
* `rust-analyzer.showWorkspaceLoadedNotification`: to ease troubleshooting, a
notification is shown by default when a workspace is loaded
* `rust-analyzer.enableEnhancedTyping`: by default, rust-analyzer intercepts
`Enter` key to make it easier to continue comments. Note that it may conflict with VIM emulation plugin.
* `rust-analyzer.raLspServerPath`: path to `ra_lsp_server` executable
* `rust-analyzer.enableCargoWatchOnStartup`: prompt to install & enable `cargo
watch` for live error highlighting (note, this **does not** use rust-analyzer)
* `rust-analyzer.excludeGlobs`: a list of glob-patterns for exclusion (see globset [docs](https://docs.rs/globset) for syntax).
Note: glob patterns are applied to all Cargo packages and a rooted at a package root.
This is not very intuitive and a limitation of a current implementation.
* `rust-analyzer.useClientWatching`: use client provided file watching instead
of notify watching.
* `rust-analyzer.cargo-watch.command`: `cargo-watch` command. (e.g: `clippy` will run as `cargo watch -x clippy` )
* `rust-analyzer.cargo-watch.arguments`: cargo-watch check arguments.
(e.g: `--features="shumway,pdf"` will run as `cargo watch -x "check --features="shumway,pdf""` )
* `rust-analyzer.trace.server`: enables internal logging
* `rust-analyzer.trace.cargo-watch`: enables cargo-watch logging
* `RUST_SRC_PATH`: environment variable that overwrites the sysroot
## Emacs
Prerequisites:
`emacs-lsp`, `dash` and `ht` packages.
Installation:
* add
[ra-emacs-lsp.el](https://github.com/rust-analyzer/rust-analyzer/blob/69ee5c9c5ef212f7911028c9ddf581559e6565c3/editors/emacs/ra-emacs-lsp.el)
to load path and require it in `init.el`
* run `lsp` in a rust buffer
* (Optionally) bind commands like `rust-analyzer-join-lines` or `rust-analyzer-extend-selection` to keys, and enable `rust-analyzer-inlay-hints-mode` to get inline type hints
## Vim and NeoVim
* Install coc.nvim by following the instructions at [coc.nvim]
- You will need nodejs installed.
- You may want to include some of the sample vim configurations [from here][coc-vim-conf]
- Note that if you use a plugin manager other than `vim-plug`, you may need to manually
checkout the `release` branch wherever your plugin manager cloned it. Otherwise you will
get errors about a missing javascript file.
* Run `:CocInstall coc-rust-analyzer` to install [coc-rust-analyzer], this extension implemented _most_ of the features supported in the VSCode extension:
- same configurations as VSCode extension, `rust-analyzer.raLspServerPath`, `rust-analyzer.enableCargoWatchOnStartup` etc.
- same commands too, `rust-analyzer.analyzerStatus`, `rust-analyzer.startCargoWatch` etc.
- highlighting and inlay_hints are not implemented yet
[coc.nvim]: https://github.com/neoclide/coc.nvim
[coc-vim-conf]: https://github.com/neoclide/coc.nvim/#example-vim-configuration
[coc-rust-analyzer]: https://github.com/fannheyward/coc-rust-analyzer
## Vim and NeoVim Alternative
* Install LanguageClient-neovim by following the instructions [here][lang-client-neovim]
- No extra run-time is required as this server is written in Rust
- The github project wiki has extra tips on configuration
* Configure by adding this to your vim/neovim config file (replacing the existing rust specific line if it exists):
```
let g:LanguageClient_serverCommands = {
\ 'rust': ['ra_lsp_server'],
\ }
```
[lang-client-neovim]: https://github.com/autozimu/LanguageClient-neovim
## Sublime Text 3
Prequisites:
`LSP` package.
Installation:
* Invoke the command palette with <kbd>Ctrl+Shift+P</kbd>
* Type `LSP Settings` to open the LSP preferences editor
* Add the following LSP client definition to your settings:
```json
"rust-analyzer": {
"command": ["ra_lsp_server"],
"languageId": "rust",
"scopes": ["source.rust"],
"syntaxes": [
"Packages/Rust/Rust.sublime-syntax",
"Packages/Rust Enhanced/RustEnhanced.sublime-syntax"
]
}
```
* You can now invoke the command palette and type LSP enable to locally/globally enable the rust-analyzer LSP (type LSP enable, then choose either locally or globally, then select rust-analyzer)
* Note that `ra_lsp_server` binary must be in `$PATH` for this to work. If it's not the case, you can specify full path to the binary, which is typically `.cargo/bin/ra_lsp_server`.
|
