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45 lines
1.4 KiB
Rust
45 lines
1.4 KiB
Rust
use std::path::{Path, PathBuf};
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use crate::path;
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use helix_core::syntax::Configuration as LangConfig;
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use helix_term::health::TsFeature;
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/// Get the list of languages that support a particular tree-sitter
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/// based feature.
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pub fn ts_lang_support(feat: TsFeature) -> Vec<String> {
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let queries_dir = path::ts_queries();
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find_files(&queries_dir, feat.runtime_filename())
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.iter()
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.map(|f| {
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// .../helix/runtime/queries/python/highlights.scm
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let tail = f.strip_prefix(&queries_dir).unwrap(); // python/highlights.scm
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let lang = tail.components().next().unwrap(); // python
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lang.as_os_str().to_string_lossy().to_string()
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})
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.collect()
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}
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// naive implementation, but suffices for our needs
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pub fn find_files(dir: &Path, filename: &str) -> Vec<PathBuf> {
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std::fs::read_dir(dir)
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.unwrap()
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.filter_map(|entry| {
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let path = entry.ok()?.path();
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if path.is_dir() {
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Some(find_files(&path, filename))
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} else if path.file_name()?.to_string_lossy() == filename {
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Some(vec![path])
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} else {
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None
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}
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})
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.flatten()
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.collect()
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}
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pub fn lang_config() -> LangConfig {
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let text = std::fs::read_to_string(path::lang_config()).unwrap();
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toml::from_str(&text).unwrap()
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}
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