You can use a custom configuration file by specifying it with the `-c` or
`--config` command line argument, for example `hx -c path/to/custom-config.toml`.
Additionally, you can reload the configuration file by sending the USR1
signal to the Helix process on Unix operating systems, such as by using the command `pkill -USR1 hx`.
You can reload the config file by issuing the `:config-reload` command. Alternatively, on Unix operating systems, you can reload it by sending the USR1
signal to the Helix process, such as by using the command `pkill -USR1 hx`.
Finally, you can have a `config.toml` local to a project by putting it under a `.helix` directory in your repository.
Its settings will be merged with the configuration directory `config.toml` and the built-in configuration.
| `scrolloff` | Number of lines of padding around the edge of the screen when scrolling | `5` |
| `mouse` | Enable mouse mode | `true` |
| `default-yank-register` | Default register used for yank/paste | `"` |
| `middle-click-paste` | Middle click paste support | `true` |
| `scroll-lines` | Number of lines to scroll per scroll wheel step | `3` |
| `shell` | Shell to use when running external commands | Unix: `["sh", "-c"]`<br/>Windows: `["cmd", "/C"]` |
@ -32,6 +33,7 @@
| `cursorcolumn` | Highlight all columns with a cursor | `false` |
| `gutters` | Gutters to display: Available are `diagnostics` and `diff` and `line-numbers` and `spacer`, note that `diagnostics` also includes other features like breakpoints, 1-width padding will be inserted if gutters is non-empty | `["diagnostics", "spacer", "line-numbers", "spacer", "diff"]` |
| `auto-completion` | Enable automatic pop up of auto-completion | `true` |
| `path-completion` | Enable filepath completion. Show files and directories if an existing path at the cursor was recognized, either absolute or relative to the current opened document or current working directory (if the buffer is not yet saved). Defaults to true. | `true` |
| `auto-format` | Enable automatic formatting on save | `true` |
| `idle-timeout` | Time in milliseconds since last keypress before idle timers trigger. | `250` |
| `completion-timeout` | Time in milliseconds after typing a word character before completions are shown, set to 5 for instant. | `250` |
@ -52,6 +54,30 @@
| `indent-heuristic` | How the indentation for a newly inserted line is computed: `simple` just copies the indentation level from the previous line, `tree-sitter` computes the indentation based on the syntax tree and `hybrid` combines both approaches. If the chosen heuristic is not available, a different one will be used as a fallback (the fallback order being `hybrid` -> `tree-sitter` -> `simple`). | `hybrid`
| `jump-label-alphabet` | The characters that are used to generate two character jump labels. Characters at the start of the alphabet are used first. | `"abcdefghijklmnopqrstuvwxyz"`
| `end-of-line-diagnostics` | Minimum severity of diagnostics to render at the end of the line. Set to `disable` to disable entirely. Refer to the setting about `inline-diagnostics` for more details | "disable"
| `clipboard-provider` | Which API to use for clipboard interaction. One of `pasteboard` (MacOS), `wayland`, `x-clip`, `x-sel`, `win-32-yank`, `termux`, `tmux`, `windows`, `termcode`, `none`, or a custom command set. | Platform and environment specific. |
### `[editor.clipboard-provider]` Section
Helix can be configured wither to use a builtin clipboard configuration or to use
a provided command.
For instance, setting it to use OSC 52 termcodes, the configuration would be:
```toml
[editor]
clipboard-provider = "termcode"
```
Alternatively, Helix can be configured to use arbitary commands for clipboard integration:
For custom commands the contents of the yank/paste is communicated over stdin/stdout.
### `[editor.statusline]` Section
@ -428,7 +454,8 @@ fn main() {
The new diagnostic rendering is not yet enabled by default. As soon as end of line or inline diagnostics are enabled the old diagnostics rendering is automatically disabled. The recommended default setting are:
```
```toml
[editor]
end-of-line-diagnostics = "hint"
[editor.inline-diagnostics]
cursor-line = "warning" # show warnings and errors on the cursorline inline
@ -69,6 +69,7 @@ These configuration keys are available:
| `formatter` | The formatter for the language, it will take precedence over the lsp when defined. The formatter must be able to take the original file as input from stdin and write the formatted file to stdout |
| `text-width` | Maximum line length. Used for the `:reflow` command and soft-wrapping if `soft-wrap.wrap-at-text-width` is set, defaults to `editor.text-width` |
| `path-completion` | Overrides the `editor.path-completion` config key for the language. |
| `workspace-lsp-roots` | Directories relative to the workspace root that are treated as LSP roots. Should only be set in `.helix/config.toml`. Overwrites the setting of the same name in `config.toml` if set. |
| `persistent-diagnostic-sources` | An array of LSP diagnostic sources assumed unchanged when the language server resends the same set of diagnostics. Helix can track the position for these diagnostics internally instead. Useful for diagnostics that are recomputed on save.
You can optionally [add the `.desktop` file](./building-from-source.md#configure-the-desktop-shortcut). Helix must be installed in `PATH` with the name `hx`. For example:
This adds two new symbol picker commands that use tree-sitter rather than LSP. We run a new `symbols.scm` query across the file and extract tagged things like function definitions, types, classes, etc. For languages with unambiguous syntax this behaves roughly the same as the LSP symbol picker (`<space>s`). It's less precise though since we don't have semantic info about the language. For example it can easily produce false positives for C/C++ because of preprocessor magic.
The hope is to start introducing LSP-like features for navigation that can work without installing or running a language server. I made these two pickers in particular because I don't like LSP equivalents in ErlangLS - the document symbol picker can take a long time to show up during boot and the workspace symbol picker only searches for module names. The other motivation is to have some navigation features in cases when running a language server is too cumbersome - either to set up or because of resource constraints. For example `clangd` needs a fair amount of setup (`compile_commands.json`) that you might not want to do when quickly reading through a codebase.
GitHub already uses tree-sitter like this to provide [imprecise code navigation](https://docs.github.com/en/repositories/working-with-files/using-files/navigating-code-on-github#about-navigating-code-on-github). It should be possible to find definitions and references as well like `gd` and `gr` - this is left as a follow-up.
This PR also adds commands that either open the LSP symbol picker or the syntax one if a language server is not available. This way you can customize a language to not use the LSP symbol pickers, for example:
and `<space>s` will use the syntax symbol picker, while `<space>s` on a Rust file will still prefer the language server.
---
Outstanding question - how closely should we try to match LSP symbol kind? Not at all? Should we have markup specific symbol kinds? (For example see markdown's `symbols.scm`).
Also this PR needs docs on writing `symbols.scm` queries.