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use std::{
fs,
process::{Command, Stdio},
};
use cancellation::CancellationToken;
use cstree::{TextLen, TextRange};
use lsp_types::{DocumentFormattingParams, TextEdit};
use tempfile::tempdir;
use crate::{features::FeatureRequest, DocumentLanguage, LineIndexExt};
pub fn format_with_latexindent(
request: &FeatureRequest<DocumentFormattingParams>,
_cancellation_token: &CancellationToken,
) -> Option<Vec<TextEdit>> {
let directory = tempdir().ok()?;
let document = request.main_document();
let options = request.context.options.read().unwrap();
let current_dir = options
.root_directory
.as_ref()
.cloned()
.or_else(|| {
if document.uri.scheme() == "file" {
document
.uri
.to_file_path()
.unwrap()
.parent()
.map(ToOwned::to_owned)
} else {
None
}
})
.unwrap_or_else(|| ".".into());
let local = match &options.latexindent.local {
Some(local) => format!("--local={}", local),
None => "-l".to_string(),
};
let modify_line_breaks = options.latexindent.modify_line_breaks;
drop(options);
let path = directory.path();
let _ = fs::copy(
current_dir.join("localSettings.yaml"),
path.join("localSettings.yaml"),
);
let _ = fs::copy(
current_dir.join(".localSettings.yaml"),
path.join(".localSettings.yaml"),
);
let _ = fs::copy(
current_dir.join("latexindent.yaml"),
path.join("latexindent.yaml"),
);
let name = if document.language() == DocumentLanguage::Bibtex {
"file.bib"
} else {
"file.tex"
};
fs::write(directory.path().join(name), &document.text).ok()?;
let mut args = Vec::new();
if modify_line_breaks {
args.push("--modifylinebreaks");
}
args.push(&local);
args.push(name);
let output = Command::new("latexindent")
.args(&args)
.current_dir(current_dir)
.stdin(Stdio::null())
.stdout(Stdio::piped())
.stderr(Stdio::null())
.current_dir(directory.path())
.output()
.ok()?;
let new_text = String::from_utf8_lossy(&output.stdout).into_owned();
if new_text.is_empty() {
None
} else {
Some(vec![TextEdit {
range: document
.line_index
.line_col_lsp_range(TextRange::new(0.into(), document.text.text_len())),
new_text,
}])
}
}
|