helix/book/src/configuration.md

Configuration

To override global configuration parameters, create a config.toml file located in your config directory:

• Linux and Mac: ~/.config/helix/config.toml
• Windows: %AppData%\helix\config.toml

Note: You may use hx --edit-config to create and edit the config.toml file.

Example config:

theme = "onedark"

[editor]
line-number = "relative"
mouse = false

[editor.cursor-shape]
insert = "bar"
normal = "block"
select = "underline"

[editor.file-picker]
hidden = false

Editor

[editor] Section

Key	Description	Default
scrolloff	Number of lines of padding around the edge of the screen when scrolling.	3
mouse	Enable mouse mode.	true
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"] Windows: ["cmd", "/C"]
line-number	Line number display: absolute simply shows each line's number, while relative shows the distance from the current line. When unfocused or in insert mode, relative will still show absolute line numbers.	absolute
auto-completion	Enable automatic pop up of auto-completion.	true
idle-timeout	Time in milliseconds since last keypress before idle timers trigger. Used for autocompletion, set to 0 for instant.	400
completion-trigger-len	The min-length of word under cursor to trigger autocompletion	2
auto-info	Whether to display infoboxes	true
true-color	Set to true to override automatic detection of terminal truecolor support in the event of a false negative.	false

[editor.cursor-shape] Section

Defines the shape of cursor in each mode. Note that due to limitations of the terminal environment, only the primary cursor can change shape.

Key	Description	Default
normal	Cursor shape in normal mode	block
insert	Cursor shape in insert mode	block
select	Cursor shape in select mode	block

[editor.file-picker] Section

Sets options for file picker and global search. All but the last key listed in the default file-picker configuration below are IgnoreOptions: whether hidden files and files listed within ignore files are ignored by (not visible in) the helix file picker and global search. There is also one other key, max-depth available, which is not defined by default.

Key	Description	Default
hidden	Enables ignoring hidden files.	true
parents	Enables reading ignore files from parent directories.	true
ignore	Enables reading .ignore files.	true
git-ignore	Enables reading .gitignore files.	true
git-global	Enables reading global .gitignore, whose path is specified in git's config: core.excludefile option.	true
git-exclude	Enables reading .git/info/exclude files.	true
max-depth	Set with an integer value for maximum depth to recurse.	Defaults to None.

[editor.auto-pairs] Section

Enable automatic insertion of pairs to parentheses, brackets, etc. Can be a simple boolean value, or a specific mapping of pairs of single characters.

Key	Description
false	Completely disable auto pairing, regardless of language-specific settings
true	Use the default pairs: (){}[]''""``
Mapping of pairs	e.g. { "(" = ")", "{" = "}", ... }

Example

[editor.auto-pairs]
'(' = ')'
'{' = '}'
'[' = ']'
'"' = '"'
'`' = '`'
'<' = '>'

Additionally, this setting can be used in a language config. Unless the editor setting is false, this will override the editor config in documents with this language.

Example languages.toml that adds <> and removes ''

[[language]]
name = "rust"

[language.auto-pairs]
'(' = ')'
'{' = '}'
'[' = ']'
'"' = '"'
'`' = '`'
'<' = '>'

[editor.search] Section

Search specific options.

Key	Description	Default
smart-case	Enable smart case regex searching (case insensitive unless pattern contains upper case characters)	true
wrap-around	Whether the search should wrap after depleting the matches	true

LSP

To display all language server messages in the status line add the following to your config.toml:

[lsp]
display-messages = true