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574 lines
22 KiB
Rust
574 lines
22 KiB
Rust
#![allow(clippy::too_many_arguments)]
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use crate::app;
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use crate::event_reader;
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use crate::explorer;
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use crate::lua;
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use crate::pipe_reader;
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use crate::pwd_watcher;
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use crate::ui;
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use anyhow::Result;
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use crossterm::event;
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use crossterm::execute;
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use crossterm::terminal as term;
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use mlua::LuaSerdeExt;
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use std::fs;
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use std::io;
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use std::io::Write;
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use std::path::PathBuf;
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use std::process::{Command, ExitStatus, Stdio};
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use std::sync::mpsc;
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use tui::backend::CrosstermBackend;
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use tui::Terminal;
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fn get_tty() -> io::Result<fs::File> {
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fs::OpenOptions::new()
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.read(true)
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.write(true)
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.open("/dev/tty")
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}
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fn call_lua(
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app: &app::App,
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lua: &mlua::Lua,
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func: &str,
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_silent: bool,
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) -> Result<Option<Vec<app::ExternalMsg>>> {
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let _focus_index = app
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.directory_buffer()
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.map(|d| d.focus())
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.unwrap_or_default()
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.to_string();
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let arg = app.to_lua_arg();
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let arg = lua.to_value(&arg)?;
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lua::call(lua, func, arg)
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}
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fn call(app: &app::App, cmd: app::Command, silent: bool) -> io::Result<ExitStatus> {
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let focus_index = app
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.directory_buffer()
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.map(|d| d.focus())
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.unwrap_or_default()
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.to_string();
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let (stdin, stdout, stderr) = if silent {
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(Stdio::null(), Stdio::null(), Stdio::null())
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} else {
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(get_tty()?.into(), get_tty()?.into(), get_tty()?.into())
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};
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Command::new(cmd.command().clone())
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.env("XPLR_APP_VERSION", app.version())
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.env("XPLR_PID", &app.pid().to_string())
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.env("XPLR_INPUT_BUFFER", app.input_buffer().unwrap_or_default())
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.env("XPLR_FOCUS_PATH", app.focused_node_str())
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.env("XPLR_FOCUS_INDEX", focus_index)
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.env("XPLR_SESSION_PATH", app.session_path())
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.env("XPLR_PIPE_MSG_IN", app.pipe().msg_in())
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.env("XPLR_PIPE_SELECTION_OUT", app.pipe().selection_out())
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.env("XPLR_PIPE_HISTORY_OUT", app.pipe().history_out())
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.env("XPLR_MODE", app.mode_str())
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.env("XPLR_PIPE_RESULT_OUT", app.pipe().result_out())
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.env(
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"XPLR_PIPE_GLOBAL_HELP_MENU_OUT",
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app.pipe().global_help_menu_out(),
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)
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.env(
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"XPLR_PIPE_DIRECTORY_NODES_OUT",
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app.pipe().directory_nodes_out(),
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)
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.env("XPLR_PIPE_LOGS_OUT", app.pipe().logs_out())
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.stdin(stdin)
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.stdout(stdout)
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.stderr(stderr)
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.args(cmd.args())
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.status()
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}
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fn start_fifo(path: &str, focus_path: &str) -> Result<fs::File> {
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match fs::OpenOptions::new().write(true).open(path) {
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Ok(mut file) => {
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writeln!(file, "{}", focus_path)?;
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Ok(file)
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}
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Err(e) => Err(e.into()),
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}
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}
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pub struct Runner {
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pwd: PathBuf,
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focused_path: Option<PathBuf>,
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config: Option<PathBuf>,
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on_load: Vec<app::ExternalMsg>,
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read_only: bool,
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}
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impl Runner {
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pub(crate) fn new(path: Option<PathBuf>) -> Result<Self> {
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let basedir = std::env::current_dir()?;
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let mut pwd = path
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.map(|p| if p.is_relative() { basedir.join(p) } else { p })
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.unwrap_or_else(|| basedir.clone());
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let mut focused_path = None;
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if pwd.is_file() {
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focused_path = pwd.file_name().map(|p| p.into());
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pwd = pwd.parent().map(|p| p.into()).unwrap_or(basedir);
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}
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Ok(Self {
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pwd,
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focused_path,
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config: None,
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on_load: Default::default(),
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read_only: Default::default(),
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})
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}
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pub fn with_on_load(mut self, on_load: Vec<app::ExternalMsg>) -> Self {
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self.on_load = on_load;
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self
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}
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pub fn with_config(mut self, config: Option<PathBuf>) -> Self {
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self.config = config;
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self
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}
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pub fn with_read_only(mut self, read_only: bool) -> Self {
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self.read_only = read_only;
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self
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}
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pub fn run(self) -> Result<Option<String>> {
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// Why unsafe? See https://github.com/sayanarijit/xplr/issues/309
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let lua = unsafe { mlua::Lua::unsafe_new() };
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let mut app = app::App::create(self.pwd, &lua, self.config)?;
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app.config.general.set_read_only(self.read_only);
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fs::create_dir_all(app.session_path())?;
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let (tx_msg_in, rx_msg_in) = mpsc::channel();
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let (tx_event_reader, rx_event_reader) = mpsc::channel();
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let (tx_pwd_watcher, rx_pwd_watcher) = mpsc::channel();
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app = app.explore_pwd()?;
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app = if let Some(f) = self
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.focused_path
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.clone()
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.map(|f| f.to_string_lossy().to_string())
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{
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app.focus_by_file_name(&f, true)?
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} else {
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app.focus_first(true)?
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};
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explorer::explore_recursive_async(
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app.explorer_config().clone(),
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app.pwd().into(),
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self.focused_path,
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app.directory_buffer().map(|d| d.focus()).unwrap_or(0),
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tx_msg_in.clone(),
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);
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tx_pwd_watcher.send(app.pwd().clone())?;
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let mut result = Ok(None);
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let session_path = app.session_path().to_owned();
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term::enable_raw_mode()?;
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// Use a tty to enable piping results
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let mut stdout = get_tty()?;
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// let stdout = io::stdout();
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// let mut stdout = stdout.lock();
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execute!(stdout, term::EnterAlternateScreen)?;
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let mut fifo: Option<fs::File> = if let Some(path) = app.config().general().start_fifo() {
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match start_fifo(path, &app.focused_node_str()) {
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Ok(file) => Some(file),
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Err(e) => {
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app = app.log_error(e.to_string())?;
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None
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}
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}
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} else {
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None
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};
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let mut last_focus: Option<app::Node> = None;
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let mut mouse_enabled = app.config().general().enable_mouse();
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if mouse_enabled {
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if let Err(e) = execute!(stdout, event::EnableMouseCapture) {
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app = app.log_error(e.to_string())?;
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}
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}
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let backend = CrosstermBackend::new(stdout);
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let mut terminal = Terminal::new(backend)?;
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terminal.hide_cursor()?;
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// Threads
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event_reader::keep_reading(tx_msg_in.clone(), rx_event_reader);
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pwd_watcher::keep_watching(app.pwd(), tx_msg_in.clone(), rx_pwd_watcher)?;
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// Enqueue on_load messages
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for msg in self.on_load {
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tx_msg_in.send(app::Task::new(app::MsgIn::External(msg), None))?;
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}
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'outer: for task in rx_msg_in {
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match app.handle_task(task) {
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Ok(a) => {
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app = a;
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while let Some(msg) = app.pop_msg_out() {
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match msg {
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// NOTE: Do not schedule critical tasks via tx_msg_in in this loop.
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// Try handling them immediately.
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app::MsgOut::Enque(task) => {
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tx_msg_in.send(task)?;
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}
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app::MsgOut::Quit => {
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result = Ok(None);
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break 'outer;
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}
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app::MsgOut::PrintPwdAndQuit => {
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result = Ok(Some(format!("{}\n", app.pwd())));
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break 'outer;
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}
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app::MsgOut::PrintFocusPathAndQuit => {
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result = Ok(app
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.focused_node()
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.map(|n| format!("{}\n", n.absolute_path())));
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break 'outer;
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}
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app::MsgOut::PrintSelectionAndQuit => {
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result = Ok(Some(app.selection_str()));
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break 'outer;
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}
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app::MsgOut::PrintResultAndQuit => {
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result = Ok(Some(app.result_str()));
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break 'outer;
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}
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app::MsgOut::PrintAppStateAndQuit => {
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let out = serde_yaml::to_string(&app)?;
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result = Ok(Some(out));
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break 'outer;
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}
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app::MsgOut::Debug(path) => {
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fs::write(&path, serde_yaml::to_string(&app)?)?;
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}
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app::MsgOut::ClearScreen => {
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terminal.clear()?;
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}
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app::MsgOut::ExplorePwdAsync => {
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explorer::explore_async(
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app.explorer_config().clone(),
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app.pwd().into(),
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app.focused_node().map(|n| n.relative_path().into()),
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app.directory_buffer().map(|d| d.focus()).unwrap_or(0),
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tx_msg_in.clone(),
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);
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tx_pwd_watcher.send(app.pwd().clone())?;
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}
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app::MsgOut::ExploreParentsAsync => {
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explorer::explore_recursive_async(
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app.explorer_config().clone(),
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app.pwd().into(),
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app.focused_node().map(|n| n.relative_path().into()),
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app.directory_buffer().map(|d| d.focus()).unwrap_or(0),
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tx_msg_in.clone(),
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);
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tx_pwd_watcher.send(app.pwd().clone())?;
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}
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app::MsgOut::Refresh => {
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// $PWD watcher
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tx_pwd_watcher.send(app.pwd().clone())?;
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// UI
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terminal.draw(|f| ui::draw(f, &app, &lua))?;
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// Fifo
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let focus = app.focused_node();
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if focus != last_focus.as_ref() {
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if let Some(ref mut file) = fifo {
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writeln!(file, "{}", app.focused_node_str())?;
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};
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last_focus = focus.cloned();
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}
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}
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app::MsgOut::EnableMouse => {
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if !mouse_enabled {
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match execute!(
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terminal.backend_mut(),
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event::EnableMouseCapture
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) {
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Ok(_) => {
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mouse_enabled = true;
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}
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Err(e) => {
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app = app.log_error(e.to_string())?;
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}
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}
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}
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}
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app::MsgOut::ToggleMouse => {
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let msg = if mouse_enabled {
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app::ExternalMsg::DisableMouse
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} else {
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app::ExternalMsg::EnableMouse
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};
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app = app
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.handle_task(app::Task::new(app::MsgIn::External(msg), None))?;
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}
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app::MsgOut::DisableMouse => {
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if mouse_enabled {
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match execute!(
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terminal.backend_mut(),
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event::DisableMouseCapture
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) {
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Ok(_) => {
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mouse_enabled = false;
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}
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Err(e) => {
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app = app.log_error(e.to_string())?;
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}
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}
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}
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}
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app::MsgOut::StartFifo(path) => {
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fifo = match start_fifo(&path, &app.focused_node_str()) {
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Ok(file) => Some(file),
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Err(e) => {
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app = app.log_error(e.to_string())?;
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None
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}
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}
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}
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app::MsgOut::StopFifo => {
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if let Some(file) = fifo {
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fifo = None;
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std::mem::drop(file);
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}
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}
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app::MsgOut::ToggleFifo(path) => {
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if let Some(file) = fifo {
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fifo = None;
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std::mem::drop(file);
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} else {
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fifo = match start_fifo(&path, &app.focused_node_str()) {
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Ok(file) => Some(file),
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Err(e) => {
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app = app.log_error(e.to_string())?;
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None
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}
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}
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}
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}
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app::MsgOut::CallLuaSilently(func) => {
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tx_event_reader.send(true)?;
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match call_lua(&app, &lua, &func, false) {
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Ok(Some(msgs)) => {
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for msg in msgs {
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app = app.handle_task(app::Task::new(
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app::MsgIn::External(msg),
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None,
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))?;
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}
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}
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Ok(None) => {}
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Err(err) => {
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app = app.log_error(err.to_string())?;
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}
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};
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tx_event_reader.send(false)?;
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}
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app::MsgOut::CallSilently(cmd) => {
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tx_event_reader.send(true)?;
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app.write_pipes()?;
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let status = call(&app, cmd, true)
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.map(|s| {
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if s.success() {
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Ok(())
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} else {
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Err(format!("process exited with code {}", &s))
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}
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})
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.unwrap_or_else(|e| Err(e.to_string()));
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match pipe_reader::read_all(app.pipe().msg_in()) {
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Ok(msgs) => {
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for msg in msgs {
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app = app.handle_task(app::Task::new(
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app::MsgIn::External(msg),
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None,
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))?;
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}
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}
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Err(err) => {
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app = app.log_error(err.to_string())?;
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}
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};
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app.cleanup_pipes()?;
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if let Err(e) = status {
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app = app.log_error(e.to_string())?;
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};
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tx_event_reader.send(false)?;
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}
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app::MsgOut::CallLua(func) => {
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execute!(terminal.backend_mut(), event::DisableMouseCapture)
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.unwrap_or_default();
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tx_event_reader.send(true)?;
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terminal.clear()?;
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terminal.set_cursor(0, 0)?;
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term::disable_raw_mode()?;
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terminal.show_cursor()?;
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match call_lua(&app, &lua, &func, false) {
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Ok(Some(msgs)) => {
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for msg in msgs {
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app = app.handle_task(app::Task::new(
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app::MsgIn::External(msg),
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None,
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))?;
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}
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}
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Ok(None) => {}
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Err(err) => {
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app = app.log_error(err.to_string())?;
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}
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};
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terminal.clear()?;
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term::enable_raw_mode()?;
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terminal.hide_cursor()?;
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tx_event_reader.send(false)?;
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|
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if mouse_enabled {
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match execute!(
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terminal.backend_mut(),
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event::EnableMouseCapture
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) {
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Ok(_) => {
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mouse_enabled = true;
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}
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Err(e) => {
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app = app.log_error(e.to_string())?;
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}
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}
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}
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}
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app::MsgOut::Call(cmd) => {
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execute!(terminal.backend_mut(), event::DisableMouseCapture)
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.unwrap_or_default();
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tx_event_reader.send(true)?;
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terminal.clear()?;
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terminal.set_cursor(0, 0)?;
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term::disable_raw_mode()?;
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terminal.show_cursor()?;
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app.write_pipes()?;
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let status = call(&app, cmd, false)
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.map(|s| {
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if s.success() {
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Ok(())
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} else {
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Err(format!("process exited with code {}", &s))
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}
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})
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.unwrap_or_else(|e| Err(e.to_string()));
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match pipe_reader::read_all(app.pipe().msg_in()) {
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Ok(msgs) => {
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for msg in msgs {
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app = app.handle_task(app::Task::new(
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app::MsgIn::External(msg),
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None,
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))?;
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}
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}
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Err(err) => {
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app = app.log_error(err.to_string())?;
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}
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};
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app.cleanup_pipes()?;
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if let Err(e) = status {
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app = app.log_error(e.to_string())?;
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};
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terminal.clear()?;
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term::enable_raw_mode()?;
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terminal.hide_cursor()?;
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tx_event_reader.send(false)?;
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|
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if mouse_enabled {
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match execute!(
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terminal.backend_mut(),
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event::EnableMouseCapture
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) {
|
|
Ok(_) => {
|
|
mouse_enabled = true;
|
|
}
|
|
Err(e) => {
|
|
app = app.log_error(e.to_string())?;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
};
|
|
}
|
|
}
|
|
|
|
Err(e) => {
|
|
result = Err(e);
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
|
|
terminal.clear()?;
|
|
terminal.set_cursor(0, 0)?;
|
|
execute!(terminal.backend_mut(), term::LeaveAlternateScreen)?;
|
|
execute!(terminal.backend_mut(), event::DisableMouseCapture).unwrap_or_default();
|
|
term::disable_raw_mode()?;
|
|
terminal.show_cursor()?;
|
|
|
|
fs::remove_dir_all(session_path)?;
|
|
|
|
result
|
|
}
|
|
}
|