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|
use std::{
borrow::{Borrow, Cow},
path::{Path, PathBuf},
};
use distro::{Distro, Language};
use line_index::LineCol;
use rowan::{TextLen, TextRange};
use rustc_hash::{FxHashMap, FxHashSet};
use url::Url;
use crate::{deps, Config, Document, DocumentParams, Owner};
#[derive(Debug, Default)]
pub struct Workspace {
documents: FxHashSet<Document>,
config: Config,
distro: Distro,
folders: Vec<PathBuf>,
graphs: FxHashMap<Url, deps::Graph>,
}
impl Workspace {
pub fn lookup<Q>(&self, key: &Q) -> Option<&Document>
where
Q: std::hash::Hash + Eq,
Document: Borrow<Q>,
{
self.documents.get(key)
}
pub fn lookup_file(&self, path: &Path) -> Option<&Document> {
self.iter()
.find(|document| document.path.as_deref() == Some(path))
}
pub fn lookup_file_or_dir<'a>(
&'a self,
file_or_dir: &'a Path,
) -> impl Iterator<Item = &'a Document> + '_ {
self.iter().filter(move |doc| {
doc.path
.as_deref()
.map_or(false, |p| p.starts_with(file_or_dir))
})
}
pub fn iter(&self) -> impl Iterator<Item = &Document> + '_ {
self.documents.iter()
}
pub fn config(&self) -> &Config {
&self.config
}
pub fn distro(&self) -> &Distro {
&self.distro
}
pub fn graphs(&self) -> &FxHashMap<Url, deps::Graph> {
&self.graphs
}
pub fn folders(&self) -> &[PathBuf] {
&self.folders
}
pub fn open(
&mut self,
uri: Url,
text: String,
language: Language,
owner: Owner,
cursor: LineCol,
) {
log::debug!("Opening document {uri}...");
self.documents.remove(&uri);
self.documents.insert(Document::parse(DocumentParams {
uri,
text,
language,
owner,
cursor,
config: &self.config,
}));
self.graphs = self
.iter()
.map(|start| (start.uri.clone(), deps::Graph::new(self, start)))
.collect();
}
pub fn load(&mut self, path: &Path, language: Language) -> std::io::Result<()> {
log::debug!("Loading document {} from disk...", path.display());
let uri = Url::from_file_path(path).unwrap();
let data = std::fs::read(path)?;
let text = match String::from_utf8_lossy(&data) {
Cow::Borrowed(_) => unsafe { String::from_utf8_unchecked(data) },
Cow::Owned(text) => text,
};
let owner = if self.distro.file_name_db.contains(&path) {
Owner::Distro
} else {
Owner::Server
};
if let Some(document) = self.lookup_file(path) {
if document.text == text {
return Ok(());
}
}
self.open(uri, text, language, owner, LineCol { line: 0, col: 0 });
Ok(())
}
pub fn edit(&mut self, uri: &Url, delete: TextRange, insert: &str) -> Option<()> {
let document = self.lookup(uri)?;
let mut text = document.text.clone();
let cursor = if delete.len() == text.text_len() {
let line = document.cursor.line.min(text.lines().count() as u32);
LineCol { line, col: 0 }
} else {
document.line_index.line_col(delete.start())
};
text.replace_range(std::ops::Range::<usize>::from(delete), insert);
self.open(
document.uri.clone(),
text,
document.language,
Owner::Client,
cursor,
);
Some(())
}
pub fn contains(&self, path: &Path) -> bool {
if self.folders.is_empty() {
return true;
}
self.folders.iter().any(|dir| path.starts_with(dir))
}
pub fn set_config(&mut self, config: Config) {
self.config = config;
self.reload();
}
pub fn set_distro(&mut self, distro: Distro) {
self.distro = distro;
self.reload();
}
pub fn set_folders(&mut self, folders: Vec<PathBuf>) {
self.folders = folders;
}
pub fn set_cursor(&mut self, uri: &Url, cursor: LineCol) -> Option<()> {
let mut document = self.lookup(uri)?.clone();
document.cursor = cursor;
self.documents.remove(&document);
self.documents.insert(document);
Some(())
}
pub fn reload(&mut self) {
let uris = self
.documents
.iter()
.filter(|document| document.language == Language::Tex)
.map(|document| document.uri.clone())
.collect::<Vec<Url>>();
for uri in uris {
let document = self.lookup(&uri).unwrap();
self.open(
uri,
document.text.clone(),
document.language,
document.owner,
document.cursor,
);
}
}
pub fn remove(&mut self, uri: &Url) {
log::info!("Removing moved or deleted document: {uri}");
self.documents.remove(uri);
}
pub fn close(&mut self, uri: &Url) -> Option<()> {
let mut document = self.lookup(uri)?.clone();
document.owner = Owner::Server;
self.documents.insert(document);
Some(())
}
}
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