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use crossterm::style::{Color, Print, Stylize};
use helix_core::config::{default_syntax_loader, user_syntax_loader};
use helix_loader::grammar::load_runtime_file;
#[derive(Copy, Clone)]
pub enum TsFeature {
Highlight,
TextObject,
AutoIndent,
}
impl TsFeature {
pub fn all() -> &'static [Self] {
&[Self::Highlight, Self::TextObject, Self::AutoIndent]
}
pub fn runtime_filename(&self) -> &'static str {
match *self {
Self::Highlight => "highlights.scm",
Self::TextObject => "textobjects.scm",
Self::AutoIndent => "indents.toml",
}
}
pub fn long_title(&self) -> &'static str {
match *self {
Self::Highlight => "Syntax Highlighting",
Self::TextObject => "Treesitter Textobjects",
Self::AutoIndent => "Auto Indent",
}
}
pub fn short_title(&self) -> &'static str {
match *self {
Self::Highlight => "Highlight",
Self::TextObject => "Textobject",
Self::AutoIndent => "Indent",
}
}
}
/// Display general diagnostics.
pub fn general() {
let config_file = helix_loader::config_file();
let lang_file = helix_loader::lang_config_file();
let log_file = helix_loader::log_file();
let rt_dir = helix_loader::runtime_dir();
if config_file.exists() {
println!("Config file: {}", config_file.display());
} else {
println!("Config file: default")
}
if lang_file.exists() {
println!("Language file: {}", lang_file.display());
} else {
println!("Language file: default")
}
println!("Log file: {}", log_file.display());
println!("Runtime directory: {}", rt_dir.display());
if let Ok(path) = std::fs::read_link(&rt_dir) {
let msg = format!("Runtime directory is symlinked to {}", path.display());
println!("{}", msg.yellow());
}
if !rt_dir.exists() {
println!("{}", "Runtime directory does not exist.".red());
}
if rt_dir.read_dir().ok().map(|it| it.count()) == Some(0) {
println!("{}", "Runtime directory is empty.".red());
}
}
pub fn languages_all() {
let mut syn_loader_conf = user_syntax_loader().unwrap_or_else(|err| {
eprintln!("{}: {}", "Error parsing user language config".red(), err);
eprintln!("{}", "Using default language config".yellow());
default_syntax_loader()
});
let mut headings = vec!["Language", "LSP", "DAP"];
for feat in TsFeature::all() {
headings.push(feat.short_title())
}
let terminal_cols = crossterm::terminal::size().map(|(c, _)| c).unwrap_or(80);
let column_width = terminal_cols as usize / headings.len();
let column = |item: &str, color: Color| {
let data = format!(
"{:column_width$}",
item.get(..column_width - 2)
.map(|s| format!("{s}…"))
.unwrap_or_else(|| item.to_string())
)
.stylize()
.with(color);
// We can't directly use println!() because of
// https://github.com/crossterm-rs/crossterm/issues/589
let _ = crossterm::execute!(std::io::stdout(), Print(data));
};
for heading in headings {
column(heading, Color::White);
}
println!();
syn_loader_conf
.language
.sort_unstable_by_key(|l| l.language_id.clone());
let check_binary = |cmd: Option<String>| match cmd {
Some(cmd) => match which::which(&cmd) {
Ok(_) => column(&cmd, Color::Green),
Err(_) => column(&cmd, Color::Red),
},
None => column("None", Color::Yellow),
};
for lang in &syn_loader_conf.language {
column(&lang.language_id, Color::Reset);
let lsp = lang
.language_server
.as_ref()
.map(|lsp| lsp.command.to_string());
check_binary(lsp);
let dap = lang.debugger.as_ref().map(|dap| dap.command.to_string());
check_binary(dap);
for ts_feat in TsFeature::all() {
match load_runtime_file(&lang.language_id, ts_feat.runtime_filename()).is_ok() {
true => column("Found", Color::Green),
false => column("Not Found", Color::Red),
}
}
println!();
}
}
/// Display diagnostics pertaining to a particular language (LSP,
/// highlight queries, etc).
pub fn language(lang_str: String) {
let syn_loader_conf = user_syntax_loader().unwrap_or_else(|err| {
eprintln!("{}: {}", "Error parsing user language config".red(), err);
eprintln!("{}", "Using default language config".yellow());
default_syntax_loader()
});
let lang = match syn_loader_conf
.language
.iter()
.find(|l| l.language_id == lang_str)
{
Some(l) => l,
None => {
let msg = format!("Language '{lang_str}' not found");
println!("{}", msg.red());
let suggestions: Vec<&str> = syn_loader_conf
.language
.iter()
.filter(|l| l.language_id.starts_with(lang_str.chars().next().unwrap()))
.map(|l| l.language_id.as_str())
.collect();
if !suggestions.is_empty() {
let suggestions = suggestions.join(", ");
println!("Did you mean one of these: {} ?", suggestions.yellow());
}
return;
}
};
probe_protocol(
"language server",
lang.language_server
.as_ref()
.map(|lsp| lsp.command.to_string()),
);
probe_protocol(
"debug adapter",
lang.debugger.as_ref().map(|dap| dap.command.to_string()),
);
for ts_feat in TsFeature::all() {
probe_treesitter_feature(&lang_str, *ts_feat)
}
}
/// Display diagnostics about LSP and DAP.
fn probe_protocol(protocol_name: &str, server_cmd: Option<String>) {
let cmd_name = match server_cmd {
Some(ref cmd) => cmd.as_str().green(),
None => "None".yellow(),
};
println!("Configured {}: {}", protocol_name, cmd_name);
if let Some(cmd) = server_cmd {
let path = match which::which(&cmd) {
Ok(path) => path.display().to_string().green(),
Err(_) => "Not found in $PATH".to_string().red(),
};
println!("Binary for {}: {}", protocol_name, path);
}
}
/// Display diagnostics about a feature that requires tree-sitter
/// query files (highlights, textobjects, etc).
fn probe_treesitter_feature(lang: &str, feature: TsFeature) {
let found = match load_runtime_file(lang, feature.runtime_filename()).is_ok() {
true => "Found".green(),
false => "Not found".red(),
};
println!("{} queries: {}", feature.short_title(), found);
}
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