mirror of
https://github.com/helix-editor/helix
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46 lines
1.6 KiB
Rust
46 lines
1.6 KiB
Rust
use std::str::from_utf8;
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/// Default built-in languages.toml.
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pub fn default_lang_config() -> toml::Value {
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let default_config = include_bytes!("../../languages.toml");
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toml::from_str(from_utf8(default_config).unwrap())
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.expect("Could not parse built-in languages.toml to valid toml")
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}
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/// User configured languages.toml file, merged with the default config.
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pub fn user_lang_config() -> Result<toml::Value, toml::de::Error> {
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let config = crate::local_config_dirs()
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.into_iter()
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.chain([crate::config_dir()].into_iter())
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.map(|path| path.join("languages.toml"))
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.filter_map(|file| {
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std::fs::read_to_string(file)
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.map(|config| toml::from_str(&config))
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.ok()
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})
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.collect::<Result<Vec<_>, _>>()?
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.into_iter()
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.chain([default_lang_config()].into_iter())
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.fold(toml::Value::Table(toml::value::Table::default()), |a, b| {
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// combines for example
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// b:
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// [[language]]
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// name = "toml"
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// language-server = { command = "taplo", args = ["lsp", "stdio"] }
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//
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// a:
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// [[language]]
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// language-server = { command = "/usr/bin/taplo" }
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//
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// into:
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// [[language]]
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// name = "toml"
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// language-server = { command = "/usr/bin/taplo" }
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//
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// thus it overrides the third depth-level of b with values of a if they exist, but otherwise merges their values
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crate::merge_toml_values(b, a, 3)
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});
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Ok(config)
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}
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