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1258 lines
52 KiB
Rust
1258 lines
52 KiB
Rust
use arc_swap::{access::Map, ArcSwap};
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use futures_util::Stream;
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use helix_core::{diagnostic::Severity, pos_at_coords, syntax, Selection};
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use helix_lsp::{
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lsp::{self, notification::Notification},
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util::lsp_range_to_range,
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LanguageServerId, LspProgressMap,
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};
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use helix_stdx::path::get_relative_path;
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use helix_view::{
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align_view,
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document::{DocumentOpenError, DocumentSavedEventResult},
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editor::{ConfigEvent, EditorEvent},
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events::DiagnosticsDidChange,
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graphics::Rect,
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theme,
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tree::Layout,
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Align, Editor,
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};
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use serde_json::json;
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use tui::backend::Backend;
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use crate::{
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args::Args,
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compositor::{Compositor, Event},
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config::Config,
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handlers,
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job::Jobs,
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keymap::Keymaps,
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ui::{self, overlay::overlaid},
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};
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use log::{debug, error, info, warn};
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#[cfg(not(feature = "integration"))]
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use std::io::stdout;
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use std::{collections::btree_map::Entry, io::stdin, path::Path, sync::Arc};
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use anyhow::{Context, Error};
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use crossterm::{event::Event as CrosstermEvent, tty::IsTty};
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#[cfg(not(windows))]
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use {signal_hook::consts::signal, signal_hook_tokio::Signals};
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#[cfg(windows)]
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type Signals = futures_util::stream::Empty<()>;
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#[cfg(not(feature = "integration"))]
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use tui::backend::CrosstermBackend;
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#[cfg(feature = "integration")]
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use tui::backend::TestBackend;
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#[cfg(not(feature = "integration"))]
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type TerminalBackend = CrosstermBackend<std::io::Stdout>;
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#[cfg(feature = "integration")]
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type TerminalBackend = TestBackend;
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type Terminal = tui::terminal::Terminal<TerminalBackend>;
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pub struct Application {
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compositor: Compositor,
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terminal: Terminal,
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pub editor: Editor,
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config: Arc<ArcSwap<Config>>,
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#[allow(dead_code)]
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theme_loader: Arc<theme::Loader>,
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#[allow(dead_code)]
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syn_loader: Arc<ArcSwap<syntax::Loader>>,
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signals: Signals,
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jobs: Jobs,
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lsp_progress: LspProgressMap,
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}
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#[cfg(feature = "integration")]
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fn setup_integration_logging() {
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let level = std::env::var("HELIX_LOG_LEVEL")
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.map(|lvl| lvl.parse().unwrap())
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.unwrap_or(log::LevelFilter::Info);
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// Separate file config so we can include year, month and day in file logs
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let _ = fern::Dispatch::new()
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.format(|out, message, record| {
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out.finish(format_args!(
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"{} {} [{}] {}",
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chrono::Local::now().format("%Y-%m-%dT%H:%M:%S%.3f"),
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record.target(),
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record.level(),
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message
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))
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})
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.level(level)
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.chain(std::io::stdout())
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.apply();
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}
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impl Application {
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pub fn new(args: Args, config: Config, lang_loader: syntax::Loader) -> Result<Self, Error> {
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#[cfg(feature = "integration")]
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setup_integration_logging();
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use helix_view::editor::Action;
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let mut theme_parent_dirs = vec![helix_loader::config_dir()];
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theme_parent_dirs.extend(helix_loader::runtime_dirs().iter().cloned());
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let theme_loader = std::sync::Arc::new(theme::Loader::new(&theme_parent_dirs));
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let true_color = config.editor.true_color || crate::true_color();
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let theme = config
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.theme
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.as_ref()
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.and_then(|theme| {
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theme_loader
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.load(theme)
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.map_err(|e| {
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log::warn!("failed to load theme `{}` - {}", theme, e);
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e
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})
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.ok()
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.filter(|theme| (true_color || theme.is_16_color()))
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})
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.unwrap_or_else(|| theme_loader.default_theme(true_color));
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let syn_loader = Arc::new(ArcSwap::from_pointee(lang_loader));
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#[cfg(not(feature = "integration"))]
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let backend = CrosstermBackend::new(stdout(), &config.editor);
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#[cfg(feature = "integration")]
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let backend = TestBackend::new(120, 150);
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let terminal = Terminal::new(backend)?;
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let area = terminal.size().expect("couldn't get terminal size");
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let mut compositor = Compositor::new(area);
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let config = Arc::new(ArcSwap::from_pointee(config));
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let handlers = handlers::setup(config.clone());
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let mut editor = Editor::new(
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area,
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theme_loader.clone(),
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syn_loader.clone(),
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Arc::new(Map::new(Arc::clone(&config), |config: &Config| {
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&config.editor
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})),
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handlers,
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);
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let keys = Box::new(Map::new(Arc::clone(&config), |config: &Config| {
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&config.keys
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}));
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let editor_view = Box::new(ui::EditorView::new(Keymaps::new(keys)));
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compositor.push(editor_view);
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if args.load_tutor {
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let path = helix_loader::runtime_file(Path::new("tutor"));
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editor.open(&path, Action::VerticalSplit)?;
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// Unset path to prevent accidentally saving to the original tutor file.
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doc_mut!(editor).set_path(None);
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} else if !args.files.is_empty() {
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let mut files_it = args.files.into_iter().peekable();
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// If the first file is a directory, skip it and open a picker
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if let Some((first, _)) = files_it.next_if(|(p, _)| p.is_dir()) {
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let picker = ui::file_picker(first, &config.load().editor);
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compositor.push(Box::new(overlaid(picker)));
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}
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// If there are any more files specified, open them
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if files_it.peek().is_some() {
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let mut nr_of_files = 0;
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for (file, pos) in files_it {
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nr_of_files += 1;
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if file.is_dir() {
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return Err(anyhow::anyhow!(
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"expected a path to file, found a directory. (to open a directory pass it as first argument)"
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));
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} else {
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// If the user passes in either `--vsplit` or
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// `--hsplit` as a command line argument, all the given
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// files will be opened according to the selected
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// option. If neither of those two arguments are passed
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// in, just load the files normally.
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let action = match args.split {
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_ if nr_of_files == 1 => Action::VerticalSplit,
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Some(Layout::Vertical) => Action::VerticalSplit,
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Some(Layout::Horizontal) => Action::HorizontalSplit,
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None => Action::Load,
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};
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let doc_id = match editor.open(&file, action) {
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// Ignore irregular files during application init.
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Err(DocumentOpenError::IrregularFile) => {
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nr_of_files -= 1;
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continue;
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}
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Err(err) => return Err(anyhow::anyhow!(err)),
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Ok(doc_id) => doc_id,
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};
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// with Action::Load all documents have the same view
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// NOTE: this isn't necessarily true anymore. If
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// `--vsplit` or `--hsplit` are used, the file which is
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// opened last is focused on.
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let view_id = editor.tree.focus;
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let doc = doc_mut!(editor, &doc_id);
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let pos = Selection::point(pos_at_coords(doc.text().slice(..), pos, true));
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doc.set_selection(view_id, pos);
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}
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}
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// if all files were invalid, replace with empty buffer
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if nr_of_files == 0 {
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editor.new_file(Action::VerticalSplit);
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} else {
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editor.set_status(format!(
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"Loaded {} file{}.",
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nr_of_files,
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if nr_of_files == 1 { "" } else { "s" } // avoid "Loaded 1 files." grammo
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));
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// align the view to center after all files are loaded,
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// does not affect views without pos since it is at the top
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let (view, doc) = current!(editor);
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align_view(doc, view, Align::Center);
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}
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} else {
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editor.new_file(Action::VerticalSplit);
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}
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} else if stdin().is_tty() || cfg!(feature = "integration") {
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editor.new_file(Action::VerticalSplit);
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} else {
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editor
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.new_file_from_stdin(Action::VerticalSplit)
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.unwrap_or_else(|_| editor.new_file(Action::VerticalSplit));
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}
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editor.set_theme(theme);
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#[cfg(windows)]
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let signals = futures_util::stream::empty();
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#[cfg(not(windows))]
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let signals = Signals::new([
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signal::SIGTSTP,
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signal::SIGCONT,
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signal::SIGUSR1,
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signal::SIGTERM,
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signal::SIGINT,
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])
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.context("build signal handler")?;
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let app = Self {
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compositor,
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terminal,
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editor,
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config,
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theme_loader,
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syn_loader,
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signals,
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jobs: Jobs::new(),
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lsp_progress: LspProgressMap::new(),
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};
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Ok(app)
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}
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async fn render(&mut self) {
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if self.compositor.full_redraw {
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self.terminal.clear().expect("Cannot clear the terminal");
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self.compositor.full_redraw = false;
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}
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let mut cx = crate::compositor::Context {
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editor: &mut self.editor,
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jobs: &mut self.jobs,
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scroll: None,
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};
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helix_event::start_frame();
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cx.editor.needs_redraw = false;
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let area = self
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.terminal
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.autoresize()
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.expect("Unable to determine terminal size");
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// TODO: need to recalculate view tree if necessary
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let surface = self.terminal.current_buffer_mut();
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self.compositor.render(area, surface, &mut cx);
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let (pos, kind) = self.compositor.cursor(area, &self.editor);
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// reset cursor cache
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self.editor.cursor_cache.reset();
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let pos = pos.map(|pos| (pos.col as u16, pos.row as u16));
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self.terminal.draw(pos, kind).unwrap();
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}
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pub async fn event_loop<S>(&mut self, input_stream: &mut S)
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where
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S: Stream<Item = std::io::Result<crossterm::event::Event>> + Unpin,
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{
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self.render().await;
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loop {
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if !self.event_loop_until_idle(input_stream).await {
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break;
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}
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}
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}
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pub async fn event_loop_until_idle<S>(&mut self, input_stream: &mut S) -> bool
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where
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S: Stream<Item = std::io::Result<crossterm::event::Event>> + Unpin,
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{
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loop {
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if self.editor.should_close() {
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return false;
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}
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use futures_util::StreamExt;
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tokio::select! {
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biased;
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Some(signal) = self.signals.next() => {
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if !self.handle_signals(signal).await {
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return false;
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};
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}
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Some(event) = input_stream.next() => {
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self.handle_terminal_events(event).await;
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}
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Some(callback) = self.jobs.callbacks.recv() => {
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self.jobs.handle_callback(&mut self.editor, &mut self.compositor, Ok(Some(callback)));
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self.render().await;
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}
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Some(msg) = self.jobs.status_messages.recv() => {
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let severity = match msg.severity{
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helix_event::status::Severity::Hint => Severity::Hint,
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helix_event::status::Severity::Info => Severity::Info,
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helix_event::status::Severity::Warning => Severity::Warning,
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helix_event::status::Severity::Error => Severity::Error,
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};
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// TODO: show multiple status messages at once to avoid clobbering
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self.editor.status_msg = Some((msg.message, severity));
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helix_event::request_redraw();
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}
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Some(callback) = self.jobs.wait_futures.next() => {
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self.jobs.handle_callback(&mut self.editor, &mut self.compositor, callback);
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self.render().await;
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}
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event = self.editor.wait_event() => {
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let _idle_handled = self.handle_editor_event(event).await;
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|
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#[cfg(feature = "integration")]
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{
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if _idle_handled {
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return true;
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}
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}
|
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}
|
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}
|
|
|
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// for integration tests only, reset the idle timer after every
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// event to signal when test events are done processing
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#[cfg(feature = "integration")]
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{
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self.editor.reset_idle_timer();
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}
|
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}
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}
|
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|
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pub fn handle_config_events(&mut self, config_event: ConfigEvent) {
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match config_event {
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ConfigEvent::Refresh => self.refresh_config(),
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// Since only the Application can make changes to Editor's config,
|
|
// the Editor must send up a new copy of a modified config so that
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// the Application can apply it.
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ConfigEvent::Update(editor_config) => {
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let mut app_config = (*self.config.load().clone()).clone();
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app_config.editor = *editor_config;
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if let Err(err) = self.terminal.reconfigure(app_config.editor.clone().into()) {
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self.editor.set_error(err.to_string());
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};
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self.config.store(Arc::new(app_config));
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}
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}
|
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|
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// Update all the relevant members in the editor after updating
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// the configuration.
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self.editor.refresh_config();
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|
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// reset view position in case softwrap was enabled/disabled
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let scrolloff = self.editor.config().scrolloff;
|
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for (view, _) in self.editor.tree.views() {
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let doc = doc_mut!(self.editor, &view.doc);
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view.ensure_cursor_in_view(doc, scrolloff);
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}
|
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}
|
|
|
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/// refresh language config after config change
|
|
fn refresh_language_config(&mut self) -> Result<(), Error> {
|
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let lang_loader = helix_core::config::user_lang_loader()?;
|
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|
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self.syn_loader.store(Arc::new(lang_loader));
|
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self.editor.syn_loader = self.syn_loader.clone();
|
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for document in self.editor.documents.values_mut() {
|
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document.detect_language(self.syn_loader.clone());
|
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let diagnostics = Editor::doc_diagnostics(
|
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&self.editor.language_servers,
|
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&self.editor.diagnostics,
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document,
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);
|
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document.replace_diagnostics(diagnostics, &[], None);
|
|
}
|
|
|
|
Ok(())
|
|
}
|
|
|
|
/// Refresh theme after config change
|
|
fn refresh_theme(&mut self, config: &Config) -> Result<(), Error> {
|
|
let true_color = config.editor.true_color || crate::true_color();
|
|
let theme = config
|
|
.theme
|
|
.as_ref()
|
|
.and_then(|theme| {
|
|
self.theme_loader
|
|
.load(theme)
|
|
.map_err(|e| {
|
|
log::warn!("failed to load theme `{}` - {}", theme, e);
|
|
e
|
|
})
|
|
.ok()
|
|
.filter(|theme| (true_color || theme.is_16_color()))
|
|
})
|
|
.unwrap_or_else(|| self.theme_loader.default_theme(true_color));
|
|
|
|
self.editor.set_theme(theme);
|
|
Ok(())
|
|
}
|
|
|
|
fn refresh_config(&mut self) {
|
|
let mut refresh_config = || -> Result<(), Error> {
|
|
let default_config = Config::load_default()
|
|
.map_err(|err| anyhow::anyhow!("Failed to load config: {}", err))?;
|
|
self.refresh_language_config()?;
|
|
self.refresh_theme(&default_config)?;
|
|
self.terminal
|
|
.reconfigure(default_config.editor.clone().into())?;
|
|
// Store new config
|
|
self.config.store(Arc::new(default_config));
|
|
Ok(())
|
|
};
|
|
|
|
match refresh_config() {
|
|
Ok(_) => {
|
|
self.editor.set_status("Config refreshed");
|
|
}
|
|
Err(err) => {
|
|
self.editor.set_error(err.to_string());
|
|
}
|
|
}
|
|
}
|
|
|
|
#[cfg(windows)]
|
|
// no signal handling available on windows
|
|
pub async fn handle_signals(&mut self, _signal: ()) -> bool {
|
|
true
|
|
}
|
|
|
|
#[cfg(not(windows))]
|
|
pub async fn handle_signals(&mut self, signal: i32) -> bool {
|
|
match signal {
|
|
signal::SIGTSTP => {
|
|
self.restore_term().unwrap();
|
|
|
|
// SAFETY:
|
|
//
|
|
// - helix must have permissions to send signals to all processes in its signal
|
|
// group, either by already having the requisite permission, or by having the
|
|
// user's UID / EUID / SUID match that of the receiving process(es).
|
|
let res = unsafe {
|
|
// A pid of 0 sends the signal to the entire process group, allowing the user to
|
|
// regain control of their terminal if the editor was spawned under another process
|
|
// (e.g. when running `git commit`).
|
|
//
|
|
// We have to send SIGSTOP (not SIGTSTP) to the entire process group, because,
|
|
// as mentioned above, the terminal will get stuck if `helix` was spawned from
|
|
// an external process and that process waits for `helix` to complete. This may
|
|
// be an issue with signal-hook-tokio, but the author of signal-hook believes it
|
|
// could be a tokio issue instead:
|
|
// https://github.com/vorner/signal-hook/issues/132
|
|
libc::kill(0, signal::SIGSTOP)
|
|
};
|
|
|
|
if res != 0 {
|
|
let err = std::io::Error::last_os_error();
|
|
eprintln!("{}", err);
|
|
let res = err.raw_os_error().unwrap_or(1);
|
|
std::process::exit(res);
|
|
}
|
|
}
|
|
signal::SIGCONT => {
|
|
// Copy/Paste from same issue from neovim:
|
|
// https://github.com/neovim/neovim/issues/12322
|
|
// https://github.com/neovim/neovim/pull/13084
|
|
for retries in 1..=10 {
|
|
match self.claim_term().await {
|
|
Ok(()) => break,
|
|
Err(err) if retries == 10 => panic!("Failed to claim terminal: {}", err),
|
|
Err(_) => continue,
|
|
}
|
|
}
|
|
|
|
// redraw the terminal
|
|
let area = self.terminal.size().expect("couldn't get terminal size");
|
|
self.compositor.resize(area);
|
|
self.terminal.clear().expect("couldn't clear terminal");
|
|
|
|
self.render().await;
|
|
}
|
|
signal::SIGUSR1 => {
|
|
self.refresh_config();
|
|
self.render().await;
|
|
}
|
|
signal::SIGTERM | signal::SIGINT => {
|
|
self.restore_term().unwrap();
|
|
return false;
|
|
}
|
|
_ => unreachable!(),
|
|
}
|
|
|
|
true
|
|
}
|
|
|
|
pub async fn handle_idle_timeout(&mut self) {
|
|
let mut cx = crate::compositor::Context {
|
|
editor: &mut self.editor,
|
|
jobs: &mut self.jobs,
|
|
scroll: None,
|
|
};
|
|
let should_render = self.compositor.handle_event(&Event::IdleTimeout, &mut cx);
|
|
if should_render || self.editor.needs_redraw {
|
|
self.render().await;
|
|
}
|
|
}
|
|
|
|
pub fn handle_document_write(&mut self, doc_save_event: DocumentSavedEventResult) {
|
|
let doc_save_event = match doc_save_event {
|
|
Ok(event) => event,
|
|
Err(err) => {
|
|
self.editor.set_error(err.to_string());
|
|
return;
|
|
}
|
|
};
|
|
|
|
let doc = match self.editor.document_mut(doc_save_event.doc_id) {
|
|
None => {
|
|
warn!(
|
|
"received document saved event for non-existent doc id: {}",
|
|
doc_save_event.doc_id
|
|
);
|
|
|
|
return;
|
|
}
|
|
Some(doc) => doc,
|
|
};
|
|
|
|
debug!(
|
|
"document {:?} saved with revision {}",
|
|
doc.path(),
|
|
doc_save_event.revision
|
|
);
|
|
|
|
doc.set_last_saved_revision(doc_save_event.revision);
|
|
|
|
let lines = doc_save_event.text.len_lines();
|
|
let bytes = doc_save_event.text.len_bytes();
|
|
|
|
self.editor
|
|
.set_doc_path(doc_save_event.doc_id, &doc_save_event.path);
|
|
// TODO: fix being overwritten by lsp
|
|
self.editor.set_status(format!(
|
|
"'{}' written, {}L {}B",
|
|
get_relative_path(&doc_save_event.path).to_string_lossy(),
|
|
lines,
|
|
bytes
|
|
));
|
|
}
|
|
|
|
#[inline(always)]
|
|
pub async fn handle_editor_event(&mut self, event: EditorEvent) -> bool {
|
|
log::debug!("received editor event: {:?}", event);
|
|
|
|
match event {
|
|
EditorEvent::DocumentSaved(event) => {
|
|
self.handle_document_write(event);
|
|
self.render().await;
|
|
}
|
|
EditorEvent::ConfigEvent(event) => {
|
|
self.handle_config_events(event);
|
|
self.render().await;
|
|
}
|
|
EditorEvent::LanguageServerMessage((id, call)) => {
|
|
self.handle_language_server_message(call, id).await;
|
|
// limit render calls for fast language server messages
|
|
helix_event::request_redraw();
|
|
}
|
|
EditorEvent::DebuggerEvent(payload) => {
|
|
let needs_render = self.editor.handle_debugger_message(payload).await;
|
|
if needs_render {
|
|
self.render().await;
|
|
}
|
|
}
|
|
EditorEvent::Redraw => {
|
|
self.render().await;
|
|
}
|
|
EditorEvent::IdleTimer => {
|
|
self.editor.clear_idle_timer();
|
|
self.handle_idle_timeout().await;
|
|
|
|
#[cfg(feature = "integration")]
|
|
{
|
|
return true;
|
|
}
|
|
}
|
|
}
|
|
|
|
false
|
|
}
|
|
|
|
pub async fn handle_terminal_events(&mut self, event: std::io::Result<CrosstermEvent>) {
|
|
let mut cx = crate::compositor::Context {
|
|
editor: &mut self.editor,
|
|
jobs: &mut self.jobs,
|
|
scroll: None,
|
|
};
|
|
// Handle key events
|
|
let should_redraw = match event.unwrap() {
|
|
CrosstermEvent::Resize(width, height) => {
|
|
self.terminal
|
|
.resize(Rect::new(0, 0, width, height))
|
|
.expect("Unable to resize terminal");
|
|
|
|
let area = self.terminal.size().expect("couldn't get terminal size");
|
|
|
|
self.compositor.resize(area);
|
|
|
|
self.compositor
|
|
.handle_event(&Event::Resize(width, height), &mut cx)
|
|
}
|
|
// Ignore keyboard release events.
|
|
CrosstermEvent::Key(crossterm::event::KeyEvent {
|
|
kind: crossterm::event::KeyEventKind::Release,
|
|
..
|
|
}) => false,
|
|
event => self.compositor.handle_event(&event.into(), &mut cx),
|
|
};
|
|
|
|
if should_redraw && !self.editor.should_close() {
|
|
self.render().await;
|
|
}
|
|
}
|
|
|
|
pub async fn handle_language_server_message(
|
|
&mut self,
|
|
call: helix_lsp::Call,
|
|
server_id: LanguageServerId,
|
|
) {
|
|
use helix_lsp::{Call, MethodCall, Notification};
|
|
|
|
macro_rules! language_server {
|
|
() => {
|
|
match self.editor.language_server_by_id(server_id) {
|
|
Some(language_server) => language_server,
|
|
None => {
|
|
warn!("can't find language server with id `{}`", server_id);
|
|
return;
|
|
}
|
|
}
|
|
};
|
|
}
|
|
|
|
match call {
|
|
Call::Notification(helix_lsp::jsonrpc::Notification { method, params, .. }) => {
|
|
let notification = match Notification::parse(&method, params) {
|
|
Ok(notification) => notification,
|
|
Err(helix_lsp::Error::Unhandled) => {
|
|
info!("Ignoring Unhandled notification from Language Server");
|
|
return;
|
|
}
|
|
Err(err) => {
|
|
error!(
|
|
"Ignoring unknown notification from Language Server: {}",
|
|
err
|
|
);
|
|
return;
|
|
}
|
|
};
|
|
|
|
match notification {
|
|
Notification::Initialized => {
|
|
let language_server = language_server!();
|
|
|
|
// Trigger a workspace/didChangeConfiguration notification after initialization.
|
|
// This might not be required by the spec but Neovim does this as well, so it's
|
|
// probably a good idea for compatibility.
|
|
if let Some(config) = language_server.config() {
|
|
tokio::spawn(language_server.did_change_configuration(config.clone()));
|
|
}
|
|
|
|
let docs = self
|
|
.editor
|
|
.documents()
|
|
.filter(|doc| doc.supports_language_server(server_id));
|
|
|
|
// trigger textDocument/didOpen for docs that are already open
|
|
for doc in docs {
|
|
let url = match doc.url() {
|
|
Some(url) => url,
|
|
None => continue, // skip documents with no path
|
|
};
|
|
|
|
let language_id =
|
|
doc.language_id().map(ToOwned::to_owned).unwrap_or_default();
|
|
|
|
tokio::spawn(language_server.text_document_did_open(
|
|
url,
|
|
doc.version(),
|
|
doc.text(),
|
|
language_id,
|
|
));
|
|
}
|
|
}
|
|
Notification::PublishDiagnostics(mut params) => {
|
|
let uri = match helix_core::Uri::try_from(params.uri) {
|
|
Ok(uri) => uri,
|
|
Err(err) => {
|
|
log::error!("{err}");
|
|
return;
|
|
}
|
|
};
|
|
let language_server = language_server!();
|
|
if !language_server.is_initialized() {
|
|
log::error!("Discarding publishDiagnostic notification sent by an uninitialized server: {}", language_server.name());
|
|
return;
|
|
}
|
|
// have to inline the function because of borrow checking...
|
|
let doc = self.editor.documents.values_mut()
|
|
.find(|doc| doc.uri().is_some_and(|u| u == uri))
|
|
.filter(|doc| {
|
|
if let Some(version) = params.version {
|
|
if version != doc.version() {
|
|
log::info!("Version ({version}) is out of date for {uri:?} (expected ({}), dropping PublishDiagnostic notification", doc.version());
|
|
return false;
|
|
}
|
|
}
|
|
true
|
|
});
|
|
|
|
let mut unchanged_diag_sources = Vec::new();
|
|
if let Some(doc) = &doc {
|
|
let lang_conf = doc.language.clone();
|
|
|
|
if let Some(lang_conf) = &lang_conf {
|
|
if let Some(old_diagnostics) = self.editor.diagnostics.get(&uri) {
|
|
if !lang_conf.persistent_diagnostic_sources.is_empty() {
|
|
// Sort diagnostics first by severity and then by line numbers.
|
|
// Note: The `lsp::DiagnosticSeverity` enum is already defined in decreasing order
|
|
params
|
|
.diagnostics
|
|
.sort_by_key(|d| (d.severity, d.range.start));
|
|
}
|
|
for source in &lang_conf.persistent_diagnostic_sources {
|
|
let new_diagnostics = params
|
|
.diagnostics
|
|
.iter()
|
|
.filter(|d| d.source.as_ref() == Some(source));
|
|
let old_diagnostics = old_diagnostics
|
|
.iter()
|
|
.filter(|(d, d_server)| {
|
|
*d_server == server_id
|
|
&& d.source.as_ref() == Some(source)
|
|
})
|
|
.map(|(d, _)| d);
|
|
if new_diagnostics.eq(old_diagnostics) {
|
|
unchanged_diag_sources.push(source.clone())
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
let diagnostics = params.diagnostics.into_iter().map(|d| (d, server_id));
|
|
|
|
// Insert the original lsp::Diagnostics here because we may have no open document
|
|
// for diagnosic message and so we can't calculate the exact position.
|
|
// When using them later in the diagnostics picker, we calculate them on-demand.
|
|
let diagnostics = match self.editor.diagnostics.entry(uri) {
|
|
Entry::Occupied(o) => {
|
|
let current_diagnostics = o.into_mut();
|
|
// there may entries of other language servers, which is why we can't overwrite the whole entry
|
|
current_diagnostics.retain(|(_, lsp_id)| *lsp_id != server_id);
|
|
current_diagnostics.extend(diagnostics);
|
|
current_diagnostics
|
|
// Sort diagnostics first by severity and then by line numbers.
|
|
}
|
|
Entry::Vacant(v) => v.insert(diagnostics.collect()),
|
|
};
|
|
|
|
// Sort diagnostics first by severity and then by line numbers.
|
|
// Note: The `lsp::DiagnosticSeverity` enum is already defined in decreasing order
|
|
diagnostics
|
|
.sort_by_key(|(d, server_id)| (d.severity, d.range.start, *server_id));
|
|
|
|
if let Some(doc) = doc {
|
|
let diagnostic_of_language_server_and_not_in_unchanged_sources =
|
|
|diagnostic: &lsp::Diagnostic, ls_id| {
|
|
ls_id == server_id
|
|
&& diagnostic.source.as_ref().map_or(true, |source| {
|
|
!unchanged_diag_sources.contains(source)
|
|
})
|
|
};
|
|
let diagnostics = Editor::doc_diagnostics_with_filter(
|
|
&self.editor.language_servers,
|
|
&self.editor.diagnostics,
|
|
doc,
|
|
diagnostic_of_language_server_and_not_in_unchanged_sources,
|
|
);
|
|
doc.replace_diagnostics(
|
|
diagnostics,
|
|
&unchanged_diag_sources,
|
|
Some(server_id),
|
|
);
|
|
|
|
let doc = doc.id();
|
|
helix_event::dispatch(DiagnosticsDidChange {
|
|
editor: &mut self.editor,
|
|
doc,
|
|
});
|
|
}
|
|
}
|
|
Notification::ShowMessage(params) => {
|
|
log::warn!("unhandled window/showMessage: {:?}", params);
|
|
}
|
|
Notification::LogMessage(params) => {
|
|
log::info!("window/logMessage: {:?}", params);
|
|
}
|
|
Notification::ProgressMessage(params)
|
|
if !self
|
|
.compositor
|
|
.has_component(std::any::type_name::<ui::Prompt>()) =>
|
|
{
|
|
let editor_view = self
|
|
.compositor
|
|
.find::<ui::EditorView>()
|
|
.expect("expected at least one EditorView");
|
|
let lsp::ProgressParams { token, value } = params;
|
|
|
|
let lsp::ProgressParamsValue::WorkDone(work) = value;
|
|
let parts = match &work {
|
|
lsp::WorkDoneProgress::Begin(lsp::WorkDoneProgressBegin {
|
|
title,
|
|
message,
|
|
percentage,
|
|
..
|
|
}) => (Some(title), message, percentage),
|
|
lsp::WorkDoneProgress::Report(lsp::WorkDoneProgressReport {
|
|
message,
|
|
percentage,
|
|
..
|
|
}) => (None, message, percentage),
|
|
lsp::WorkDoneProgress::End(lsp::WorkDoneProgressEnd { message }) => {
|
|
if message.is_some() {
|
|
(None, message, &None)
|
|
} else {
|
|
self.lsp_progress.end_progress(server_id, &token);
|
|
if !self.lsp_progress.is_progressing(server_id) {
|
|
editor_view.spinners_mut().get_or_create(server_id).stop();
|
|
}
|
|
self.editor.clear_status();
|
|
|
|
// we want to render to clear any leftover spinners or messages
|
|
return;
|
|
}
|
|
}
|
|
};
|
|
|
|
let token_d: &dyn std::fmt::Display = match &token {
|
|
lsp::NumberOrString::Number(n) => n,
|
|
lsp::NumberOrString::String(s) => s,
|
|
};
|
|
|
|
let status = match parts {
|
|
(Some(title), Some(message), Some(percentage)) => {
|
|
format!("[{}] {}% {} - {}", token_d, percentage, title, message)
|
|
}
|
|
(Some(title), None, Some(percentage)) => {
|
|
format!("[{}] {}% {}", token_d, percentage, title)
|
|
}
|
|
(Some(title), Some(message), None) => {
|
|
format!("[{}] {} - {}", token_d, title, message)
|
|
}
|
|
(None, Some(message), Some(percentage)) => {
|
|
format!("[{}] {}% {}", token_d, percentage, message)
|
|
}
|
|
(Some(title), None, None) => {
|
|
format!("[{}] {}", token_d, title)
|
|
}
|
|
(None, Some(message), None) => {
|
|
format!("[{}] {}", token_d, message)
|
|
}
|
|
(None, None, Some(percentage)) => {
|
|
format!("[{}] {}%", token_d, percentage)
|
|
}
|
|
(None, None, None) => format!("[{}]", token_d),
|
|
};
|
|
|
|
if let lsp::WorkDoneProgress::End(_) = work {
|
|
self.lsp_progress.end_progress(server_id, &token);
|
|
if !self.lsp_progress.is_progressing(server_id) {
|
|
editor_view.spinners_mut().get_or_create(server_id).stop();
|
|
}
|
|
} else {
|
|
self.lsp_progress.update(server_id, token, work);
|
|
}
|
|
|
|
if self.config.load().editor.lsp.display_messages {
|
|
self.editor.set_status(status);
|
|
}
|
|
}
|
|
Notification::ProgressMessage(_params) => {
|
|
// do nothing
|
|
}
|
|
Notification::Exit => {
|
|
self.editor.set_status("Language server exited");
|
|
|
|
// LSPs may produce diagnostics for files that haven't been opened in helix,
|
|
// we need to clear those and remove the entries from the list if this leads to
|
|
// an empty diagnostic list for said files
|
|
for diags in self.editor.diagnostics.values_mut() {
|
|
diags.retain(|(_, lsp_id)| *lsp_id != server_id);
|
|
}
|
|
|
|
self.editor.diagnostics.retain(|_, diags| !diags.is_empty());
|
|
|
|
// Clear any diagnostics for documents with this server open.
|
|
for doc in self.editor.documents_mut() {
|
|
doc.clear_diagnostics(Some(server_id));
|
|
}
|
|
|
|
// Remove the language server from the registry.
|
|
self.editor.language_servers.remove_by_id(server_id);
|
|
}
|
|
}
|
|
}
|
|
Call::MethodCall(helix_lsp::jsonrpc::MethodCall {
|
|
method, params, id, ..
|
|
}) => {
|
|
let reply = match MethodCall::parse(&method, params) {
|
|
Err(helix_lsp::Error::Unhandled) => {
|
|
error!(
|
|
"Language Server: Method {} not found in request {}",
|
|
method, id
|
|
);
|
|
Err(helix_lsp::jsonrpc::Error {
|
|
code: helix_lsp::jsonrpc::ErrorCode::MethodNotFound,
|
|
message: format!("Method not found: {}", method),
|
|
data: None,
|
|
})
|
|
}
|
|
Err(err) => {
|
|
log::error!(
|
|
"Language Server: Received malformed method call {} in request {}: {}",
|
|
method,
|
|
id,
|
|
err
|
|
);
|
|
Err(helix_lsp::jsonrpc::Error {
|
|
code: helix_lsp::jsonrpc::ErrorCode::ParseError,
|
|
message: format!("Malformed method call: {}", method),
|
|
data: None,
|
|
})
|
|
}
|
|
Ok(MethodCall::WorkDoneProgressCreate(params)) => {
|
|
self.lsp_progress.create(server_id, params.token);
|
|
|
|
let editor_view = self
|
|
.compositor
|
|
.find::<ui::EditorView>()
|
|
.expect("expected at least one EditorView");
|
|
let spinner = editor_view.spinners_mut().get_or_create(server_id);
|
|
if spinner.is_stopped() {
|
|
spinner.start();
|
|
}
|
|
|
|
Ok(serde_json::Value::Null)
|
|
}
|
|
Ok(MethodCall::ApplyWorkspaceEdit(params)) => {
|
|
let language_server = language_server!();
|
|
if language_server.is_initialized() {
|
|
let offset_encoding = language_server.offset_encoding();
|
|
let res = self
|
|
.editor
|
|
.apply_workspace_edit(offset_encoding, ¶ms.edit);
|
|
|
|
Ok(json!(lsp::ApplyWorkspaceEditResponse {
|
|
applied: res.is_ok(),
|
|
failure_reason: res.as_ref().err().map(|err| err.kind.to_string()),
|
|
failed_change: res
|
|
.as_ref()
|
|
.err()
|
|
.map(|err| err.failed_change_idx as u32),
|
|
}))
|
|
} else {
|
|
Err(helix_lsp::jsonrpc::Error {
|
|
code: helix_lsp::jsonrpc::ErrorCode::InvalidRequest,
|
|
message: "Server must be initialized to request workspace edits"
|
|
.to_string(),
|
|
data: None,
|
|
})
|
|
}
|
|
}
|
|
Ok(MethodCall::WorkspaceFolders) => {
|
|
Ok(json!(&*language_server!().workspace_folders().await))
|
|
}
|
|
Ok(MethodCall::WorkspaceConfiguration(params)) => {
|
|
let language_server = language_server!();
|
|
let result: Vec<_> = params
|
|
.items
|
|
.iter()
|
|
.map(|item| {
|
|
let mut config = language_server.config()?;
|
|
if let Some(section) = item.section.as_ref() {
|
|
// for some reason some lsps send an empty string (observed in 'vscode-eslint-language-server')
|
|
if !section.is_empty() {
|
|
for part in section.split('.') {
|
|
config = config.get(part)?;
|
|
}
|
|
}
|
|
}
|
|
Some(config)
|
|
})
|
|
.collect();
|
|
Ok(json!(result))
|
|
}
|
|
Ok(MethodCall::RegisterCapability(params)) => {
|
|
if let Some(client) = self.editor.language_servers.get_by_id(server_id) {
|
|
for reg in params.registrations {
|
|
match reg.method.as_str() {
|
|
lsp::notification::DidChangeWatchedFiles::METHOD => {
|
|
let Some(options) = reg.register_options else {
|
|
continue;
|
|
};
|
|
let ops: lsp::DidChangeWatchedFilesRegistrationOptions =
|
|
match serde_json::from_value(options) {
|
|
Ok(ops) => ops,
|
|
Err(err) => {
|
|
log::warn!("Failed to deserialize DidChangeWatchedFilesRegistrationOptions: {err}");
|
|
continue;
|
|
}
|
|
};
|
|
self.editor.language_servers.file_event_handler.register(
|
|
client.id(),
|
|
Arc::downgrade(client),
|
|
reg.id,
|
|
ops,
|
|
)
|
|
}
|
|
_ => {
|
|
// Language Servers based on the `vscode-languageserver-node` library often send
|
|
// client/registerCapability even though we do not enable dynamic registration
|
|
// for most capabilities. We should send a MethodNotFound JSONRPC error in this
|
|
// case but that rejects the registration promise in the server which causes an
|
|
// exit. So we work around this by ignoring the request and sending back an OK
|
|
// response.
|
|
log::warn!("Ignoring a client/registerCapability request because dynamic capability registration is not enabled. Please report this upstream to the language server");
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
Ok(serde_json::Value::Null)
|
|
}
|
|
Ok(MethodCall::UnregisterCapability(params)) => {
|
|
for unreg in params.unregisterations {
|
|
match unreg.method.as_str() {
|
|
lsp::notification::DidChangeWatchedFiles::METHOD => {
|
|
self.editor
|
|
.language_servers
|
|
.file_event_handler
|
|
.unregister(server_id, unreg.id);
|
|
}
|
|
_ => {
|
|
log::warn!("Received unregistration request for unsupported method: {}", unreg.method);
|
|
}
|
|
}
|
|
}
|
|
Ok(serde_json::Value::Null)
|
|
}
|
|
Ok(MethodCall::ShowDocument(params)) => {
|
|
let language_server = language_server!();
|
|
let offset_encoding = language_server.offset_encoding();
|
|
|
|
let result = self.handle_show_document(params, offset_encoding);
|
|
Ok(json!(result))
|
|
}
|
|
};
|
|
|
|
tokio::spawn(language_server!().reply(id, reply));
|
|
}
|
|
Call::Invalid { id } => log::error!("LSP invalid method call id={:?}", id),
|
|
}
|
|
}
|
|
|
|
fn handle_show_document(
|
|
&mut self,
|
|
params: lsp::ShowDocumentParams,
|
|
offset_encoding: helix_lsp::OffsetEncoding,
|
|
) -> lsp::ShowDocumentResult {
|
|
if let lsp::ShowDocumentParams {
|
|
external: Some(true),
|
|
uri,
|
|
..
|
|
} = params
|
|
{
|
|
self.jobs.callback(crate::open_external_url_callback(uri));
|
|
return lsp::ShowDocumentResult { success: true };
|
|
};
|
|
|
|
let lsp::ShowDocumentParams {
|
|
uri,
|
|
selection,
|
|
take_focus,
|
|
..
|
|
} = params;
|
|
|
|
let uri = match helix_core::Uri::try_from(uri) {
|
|
Ok(uri) => uri,
|
|
Err(err) => {
|
|
log::error!("{err}");
|
|
return lsp::ShowDocumentResult { success: false };
|
|
}
|
|
};
|
|
// If `Uri` gets another variant other than `Path` this may not be valid.
|
|
let path = uri.as_path().expect("URIs are valid paths");
|
|
|
|
let action = match take_focus {
|
|
Some(true) => helix_view::editor::Action::Replace,
|
|
_ => helix_view::editor::Action::VerticalSplit,
|
|
};
|
|
|
|
let doc_id = match self.editor.open(path, action) {
|
|
Ok(id) => id,
|
|
Err(err) => {
|
|
log::error!("failed to open path: {:?}: {:?}", uri, err);
|
|
return lsp::ShowDocumentResult { success: false };
|
|
}
|
|
};
|
|
|
|
let doc = doc_mut!(self.editor, &doc_id);
|
|
if let Some(range) = selection {
|
|
// TODO: convert inside server
|
|
if let Some(new_range) = lsp_range_to_range(doc.text(), range, offset_encoding) {
|
|
let view = view_mut!(self.editor);
|
|
|
|
// we flip the range so that the cursor sits on the start of the symbol
|
|
// (for example start of the function).
|
|
doc.set_selection(view.id, Selection::single(new_range.head, new_range.anchor));
|
|
if action.align_view(view, doc.id()) {
|
|
align_view(doc, view, Align::Center);
|
|
}
|
|
} else {
|
|
log::warn!("lsp position out of bounds - {:?}", range);
|
|
};
|
|
};
|
|
lsp::ShowDocumentResult { success: true }
|
|
}
|
|
|
|
async fn claim_term(&mut self) -> std::io::Result<()> {
|
|
let terminal_config = self.config.load().editor.clone().into();
|
|
self.terminal.claim(terminal_config)
|
|
}
|
|
|
|
fn restore_term(&mut self) -> std::io::Result<()> {
|
|
let terminal_config = self.config.load().editor.clone().into();
|
|
use helix_view::graphics::CursorKind;
|
|
self.terminal
|
|
.backend_mut()
|
|
.show_cursor(CursorKind::Block)
|
|
.ok();
|
|
self.terminal.restore(terminal_config)
|
|
}
|
|
|
|
pub async fn run<S>(&mut self, input_stream: &mut S) -> Result<i32, Error>
|
|
where
|
|
S: Stream<Item = std::io::Result<crossterm::event::Event>> + Unpin,
|
|
{
|
|
self.claim_term().await?;
|
|
|
|
// Exit the alternate screen and disable raw mode before panicking
|
|
let hook = std::panic::take_hook();
|
|
std::panic::set_hook(Box::new(move |info| {
|
|
// We can't handle errors properly inside this closure. And it's
|
|
// probably not a good idea to `unwrap()` inside a panic handler.
|
|
// So we just ignore the `Result`.
|
|
let _ = TerminalBackend::force_restore();
|
|
hook(info);
|
|
}));
|
|
|
|
self.event_loop(input_stream).await;
|
|
|
|
let close_errs = self.close().await;
|
|
|
|
self.restore_term()?;
|
|
|
|
for err in close_errs {
|
|
self.editor.exit_code = 1;
|
|
eprintln!("Error: {}", err);
|
|
}
|
|
|
|
Ok(self.editor.exit_code)
|
|
}
|
|
|
|
pub async fn close(&mut self) -> Vec<anyhow::Error> {
|
|
// [NOTE] we intentionally do not return early for errors because we
|
|
// want to try to run as much cleanup as we can, regardless of
|
|
// errors along the way
|
|
let mut errs = Vec::new();
|
|
|
|
if let Err(err) = self
|
|
.jobs
|
|
.finish(&mut self.editor, Some(&mut self.compositor))
|
|
.await
|
|
{
|
|
log::error!("Error executing job: {}", err);
|
|
errs.push(err);
|
|
};
|
|
|
|
if let Err(err) = self.editor.flush_writes().await {
|
|
log::error!("Error writing: {}", err);
|
|
errs.push(err);
|
|
}
|
|
|
|
if self.editor.close_language_servers(None).await.is_err() {
|
|
log::error!("Timed out waiting for language servers to shutdown");
|
|
errs.push(anyhow::format_err!(
|
|
"Timed out waiting for language servers to shutdown"
|
|
));
|
|
}
|
|
|
|
errs
|
|
}
|
|
}
|