commit 2042ced7180e13c605d2df007cd5bb108c2d9839
parent 5b9ef87373ef53591a3e0c4c8c3e1f09d8d5ff70
Author: Sylvia Ivory <git@sivory.net>
Date: Sun, 15 Mar 2026 21:51:26 -0700
Basic ratatui tool view
Diffstat:
4 files changed, 1796 insertions(+), 82 deletions(-)
diff --git a/tools/Cargo.lock b/tools/Cargo.lock
@@ -12,6 +12,21 @@ dependencies = [
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+dependencies = [
+ "log",
+ "ordered-float",
+ "strsim",
+ "thiserror 1.0.69",
+ "wezterm-dynamic-derive",
+]
+
+[[package]]
+name = "wezterm-dynamic-derive"
+version = "0.1.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "46c0cf2d539c645b448eaffec9ec494b8b19bd5077d9e58cb1ae7efece8d575b"
+dependencies = [
+ "proc-macro2",
+ "quote",
+ "syn 1.0.109",
+]
+
+[[package]]
+name = "wezterm-input-types"
+version = "0.1.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "7012add459f951456ec9d6c7e6fc340b1ce15d6fc9629f8c42853412c029e57e"
+dependencies = [
+ "bitflags 1.3.2",
+ "euclid",
+ "lazy_static",
+ "serde",
+ "wezterm-dynamic",
+]
+
+[[package]]
name = "winapi"
version = "0.3.9"
source = "registry+https://github.com/rust-lang/crates.io-index"
@@ -996,12 +2279,65 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "712e227841d057c1ee1cd2fb22fa7e5a5461ae8e48fa2ca79ec42cfc1931183f"
[[package]]
+name = "windows-core"
+version = "0.62.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "b8e83a14d34d0623b51dce9581199302a221863196a1dde71a7663a4c2be9deb"
+dependencies = [
+ "windows-implement",
+ "windows-interface",
+ "windows-link",
+ "windows-result",
+ "windows-strings",
+]
+
+[[package]]
+name = "windows-implement"
+version = "0.60.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "053e2e040ab57b9dc951b72c264860db7eb3b0200ba345b4e4c3b14f67855ddf"
+dependencies = [
+ "proc-macro2",
+ "quote",
+ "syn 2.0.114",
+]
+
+[[package]]
+name = "windows-interface"
+version = "0.59.3"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "3f316c4a2570ba26bbec722032c4099d8c8bc095efccdc15688708623367e358"
+dependencies = [
+ "proc-macro2",
+ "quote",
+ "syn 2.0.114",
+]
+
+[[package]]
name = "windows-link"
version = "0.2.1"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "f0805222e57f7521d6a62e36fa9163bc891acd422f971defe97d64e70d0a4fe5"
[[package]]
+name = "windows-result"
+version = "0.4.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "7781fa89eaf60850ac3d2da7af8e5242a5ea78d1a11c49bf2910bb5a73853eb5"
+dependencies = [
+ "windows-link",
+]
+
+[[package]]
+name = "windows-strings"
+version = "0.5.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "7837d08f69c77cf6b07689544538e017c1bfcf57e34b4c0ff58e6c2cd3b37091"
+dependencies = [
+ "windows-link",
+]
+
+[[package]]
name = "windows-sys"
version = "0.52.0"
source = "registry+https://github.com/rust-lang/crates.io-index"
@@ -1156,3 +2492,97 @@ name = "windows_x86_64_msvc"
version = "0.53.1"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "d6bbff5f0aada427a1e5a6da5f1f98158182f26556f345ac9e04d36d0ebed650"
+
+[[package]]
+name = "wit-bindgen"
+version = "0.51.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "d7249219f66ced02969388cf2bb044a09756a083d0fab1e566056b04d9fbcaa5"
+dependencies = [
+ "wit-bindgen-rust-macro",
+]
+
+[[package]]
+name = "wit-bindgen-core"
+version = "0.51.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "ea61de684c3ea68cb082b7a88508a8b27fcc8b797d738bfc99a82facf1d752dc"
+dependencies = [
+ "anyhow",
+ "heck",
+ "wit-parser",
+]
+
+[[package]]
+name = "wit-bindgen-rust"
+version = "0.51.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "b7c566e0f4b284dd6561c786d9cb0142da491f46a9fbed79ea69cdad5db17f21"
+dependencies = [
+ "anyhow",
+ "heck",
+ "indexmap",
+ "prettyplease",
+ "syn 2.0.114",
+ "wasm-metadata",
+ "wit-bindgen-core",
+ "wit-component",
+]
+
+[[package]]
+name = "wit-bindgen-rust-macro"
+version = "0.51.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "0c0f9bfd77e6a48eccf51359e3ae77140a7f50b1e2ebfe62422d8afdaffab17a"
+dependencies = [
+ "anyhow",
+ "prettyplease",
+ "proc-macro2",
+ "quote",
+ "syn 2.0.114",
+ "wit-bindgen-core",
+ "wit-bindgen-rust",
+]
+
+[[package]]
+name = "wit-component"
+version = "0.244.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "9d66ea20e9553b30172b5e831994e35fbde2d165325bec84fc43dbf6f4eb9cb2"
+dependencies = [
+ "anyhow",
+ "bitflags 2.10.0",
+ "indexmap",
+ "log",
+ "serde",
+ "serde_derive",
+ "serde_json",
+ "wasm-encoder",
+ "wasm-metadata",
+ "wasmparser",
+ "wit-parser",
+]
+
+[[package]]
+name = "wit-parser"
+version = "0.244.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "ecc8ac4bc1dc3381b7f59c34f00b67e18f910c2c0f50015669dde7def656a736"
+dependencies = [
+ "anyhow",
+ "id-arena",
+ "indexmap",
+ "log",
+ "semver",
+ "serde",
+ "serde_derive",
+ "serde_json",
+ "unicode-xid",
+ "wasmparser",
+]
+
+[[package]]
+name = "zmij"
+version = "1.0.21"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "b8848ee67ecc8aedbaf3e4122217aff892639231befc6a1b58d29fff4c2cabaa"
diff --git a/tools/Cargo.toml b/tools/Cargo.toml
@@ -5,12 +5,16 @@ edition = "2024"
[dependencies]
anyhow = "1.0.101"
+chrono = "0.4.44"
clap = { version = "4.5.57", features = ["derive"] }
crc-fast = "1.10.0"
+crossterm = { version = "0.29.0", features = ["event-stream"] }
indicatif = "0.18.3"
+ratatui = "0.30.0"
thiserror = "2.0.18"
tokio = { version = "1.49.0", features = ["full"] }
tokio-serial = "5.4.5"
+tokio-stream = "0.1.18"
tracing = "0.1.44"
tracing-indicatif = "0.3.14"
tracing-subscriber = { version = "0.3.22", features = ["env-filter"] }
diff --git a/tools/src/main.rs b/tools/src/main.rs
@@ -14,6 +14,7 @@ use tracing_subscriber::{
use std::{path::PathBuf, process::exit, time::Duration};
mod bootload;
+mod sylveos;
mod tcp;
#[derive(Parser, Debug)]
@@ -29,6 +30,8 @@ struct Args {
arm_base: u32,
#[arg(long, default_value_t = false)]
tcp: bool,
+ #[arg(long, default_value_t = false)]
+ sylveos: bool,
#[arg(value_hint = clap::ValueHint::DirPath)]
file: PathBuf,
}
@@ -124,6 +127,8 @@ async fn main() -> anyhow::Result<()> {
if args.tcp {
let (port_read, port_write) = io::split(port);
tcp::serve(port_read, port_write).await?;
+ } else if args.sylveos {
+ sylveos::start(port).await?;
} else {
default_action(port).await?;
}
diff --git a/tools/src/sylveos.rs b/tools/src/sylveos.rs
@@ -0,0 +1,275 @@
+// 3 pane layout:
+// 1. kernel console
+// 2. kernel journal
+// 3. tracing
+use std::{sync::Arc, time::Duration};
+
+use anyhow::Result;
+use crossterm::event::{Event, EventStream, KeyCode};
+use ratatui::{
+ DefaultTerminal, Frame,
+ buffer::Buffer,
+ layout::{Constraint, Layout, Rect},
+ style::Stylize,
+ symbols::scrollbar,
+ text::Line,
+ widgets::{
+ Block, Paragraph, Scrollbar, ScrollbarOrientation, ScrollbarState, StatefulWidget, Widget,
+ },
+};
+use tokio::io::{self, AsyncReadExt, AsyncWriteExt, ReadHalf, WriteHalf};
+use tokio_serial::SerialStream;
+use tokio_stream::StreamExt;
+
+pub async fn start(port: SerialStream) -> Result<()> {
+ let terminal = ratatui::init();
+ let app_result = App::new(port).run(terminal).await;
+ ratatui::restore();
+ app_result
+}
+
+#[derive(Debug)]
+struct App {
+ should_quit: bool,
+ console_widget: ConsoleWidget,
+}
+
+impl App {
+ pub fn new(port: SerialStream) -> Self {
+ let (read_port, write_port) = io::split(port);
+
+ return Self {
+ should_quit: false,
+ console_widget: ConsoleWidget {
+ state: Default::default(),
+ read_port: Arc::new(tokio::sync::RwLock::new(read_port)),
+ write_port: Arc::new(tokio::sync::RwLock::new(write_port)),
+ },
+ };
+ }
+ pub async fn run(mut self, mut terminal: DefaultTerminal) -> Result<()> {
+ self.console_widget.run();
+
+ let period = Duration::from_secs_f32(1.0 / 60.0);
+ let mut interval = tokio::time::interval(period);
+ let mut events = EventStream::new();
+
+ while !self.should_quit {
+ tokio::select! {
+ _ = interval.tick() => { terminal.draw(|frame| self.render(frame))?; },
+ Some(Ok(event)) = events.next() => self.handle_event(&event).await?,
+ }
+ }
+ Ok(())
+ }
+
+ fn render(&self, frame: &mut Frame) {
+ let layout = Layout::vertical([Constraint::Length(1), Constraint::Fill(1)]);
+ let [title_area, body_area] = frame.area().layout(&layout);
+ let title = Line::from("SylveOS").centered().bold();
+ frame.render_widget(title, title_area);
+ frame.render_widget(&self.console_widget, body_area);
+ }
+
+ async fn handle_event(&mut self, event: &Event) -> Result<()> {
+ if let Some(key) = event.as_key_press_event() {
+ match key.code {
+ KeyCode::Esc => self.should_quit = true,
+ KeyCode::Down => self.console_widget.scroll_down(),
+ KeyCode::Up => self.console_widget.scroll_up(),
+ KeyCode::Left => self.console_widget.move_cursor_left(),
+ KeyCode::Right => self.console_widget.move_cursor_right(),
+ KeyCode::Enter => self.console_widget.submit().await?,
+ KeyCode::Char(to_insert) => self.console_widget.enter_char(to_insert),
+ KeyCode::Backspace => self.console_widget.delete_char(),
+ _ => {}
+ }
+ }
+
+ Ok(())
+ }
+}
+
+#[derive(Debug, Clone)]
+struct ConsoleWidget {
+ state: Arc<std::sync::RwLock<ConsoleState>>,
+ read_port: Arc<tokio::sync::RwLock<ReadHalf<SerialStream>>>,
+ write_port: Arc<tokio::sync::RwLock<WriteHalf<SerialStream>>>,
+}
+
+#[derive(Debug, Default)]
+struct ConsoleState {
+ buffer: Vec<u8>,
+ user_input: String,
+ character_index: usize,
+ disconnected: bool,
+ vertical_scroll_state: ScrollbarState,
+ vertical_scroll: usize,
+}
+
+impl ConsoleWidget {
+ fn run(&self) {
+ let this = self.clone();
+ tokio::spawn(this.fetch_logs());
+ }
+
+ // TODO; should be moved to App
+ // then app just sends us the non-journal logs
+ async fn fetch_logs(self) {
+ loop {
+ let mut port = self.read_port.write().await;
+ let byte = match port.read_u8().await {
+ Ok(b) => {
+ if b == 0 {
+ let mut state = self.state.write().unwrap();
+ state.disconnected = true;
+ return;
+ } else {
+ b
+ }
+ }
+ Err(_) => {
+ let mut state = self.state.write().unwrap();
+ state.disconnected = true;
+ return;
+ }
+ };
+ let mut state = self.state.write().unwrap();
+ state.buffer.push(byte);
+ }
+ }
+
+ async fn submit(&self) -> Result<()> {
+ let mut state = self.state.write().unwrap();
+ let mut port = self.write_port.write().await;
+ port.write_all(state.user_input.as_bytes()).await?;
+ port.write_all(b"\n").await?;
+ port.flush().await?;
+
+ let user_input = state.user_input.clone();
+ state.buffer.extend(user_input.as_bytes());
+ state.buffer.push(b'\n');
+ state.user_input.clear();
+ state.character_index = 0;
+
+ Ok(())
+ }
+
+ fn move_cursor_left(&self) {
+ let new_index = {
+ let state = self.state.read().unwrap();
+ let cursor_moved_right = state.character_index.saturating_add(1);
+ self.clamp_cursor(cursor_moved_right)
+ };
+
+ let mut state = self.state.write().unwrap();
+ state.character_index = new_index;
+ }
+
+ fn move_cursor_right(&self) {
+ let new_index = {
+ let state = self.state.read().unwrap();
+ let cursor_moved_right = state.character_index.saturating_add(1);
+ self.clamp_cursor(cursor_moved_right)
+ };
+
+ let mut state = self.state.write().unwrap();
+ state.character_index = new_index;
+ }
+
+ fn clamp_cursor(&self, new_cursor_pos: usize) -> usize {
+ let state = self.state.read().unwrap();
+ new_cursor_pos.clamp(0, state.user_input.chars().count())
+ }
+
+ fn enter_char(&self, new_char: char) {
+ let index = self.byte_index();
+ {
+ let mut state = self.state.write().unwrap();
+ state.user_input.insert(index, new_char);
+ }
+
+ self.move_cursor_right();
+ }
+
+ fn byte_index(&self) -> usize {
+ let state = self.state.read().unwrap();
+ state
+ .user_input
+ .char_indices()
+ .map(|(i, _)| i)
+ .nth(state.character_index)
+ .unwrap_or(state.user_input.len())
+ }
+
+ fn delete_char(&self) {
+ let is_not_cursor_leftmost = {
+ let state = self.state.read().unwrap();
+ state.character_index != 0
+ };
+
+ if is_not_cursor_leftmost {
+ // Method "remove" is not used on the saved text for deleting the selected char.
+ // Reason: Using remove on String works on bytes instead of the chars.
+ // Using remove would require special care because of char boundaries.
+
+ let (user_input, current_index) = {
+ let state = self.state.read().unwrap();
+ (state.user_input.clone(), state.character_index)
+ };
+
+ let from_left_to_current_index = current_index - 1;
+
+ // Getting all characters before the selected character.
+ let before_char_to_delete = user_input.chars().take(from_left_to_current_index);
+ // Getting all characters after selected character.
+ let after_char_to_delete = user_input.chars().skip(current_index);
+
+ // Put all characters together except the selected one.
+ // By leaving the selected one out, it is forgotten and therefore deleted.
+
+ {
+ let mut state = self.state.write().unwrap();
+ state.user_input = before_char_to_delete.chain(after_char_to_delete).collect();
+ }
+
+ self.move_cursor_left();
+ }
+ }
+
+ fn scroll_down(&self) {
+ let mut state = self.state.write().unwrap();
+
+ state.vertical_scroll = state.vertical_scroll.saturating_add(1);
+ }
+
+ fn scroll_up(&self) {
+ let mut state = self.state.write().unwrap();
+
+ state.vertical_scroll = state.vertical_scroll.saturating_sub(1);
+ }
+}
+
+impl Widget for &ConsoleWidget {
+ fn render(self, area: Rect, buf: &mut Buffer) {
+ let mut state = self.state.write().unwrap();
+
+ let mut block = Block::bordered().title("Console Log");
+
+ if state.disconnected {
+ block = block.title_bottom("Disconnected");
+ }
+
+ let text = String::from_utf8_lossy(&state.buffer).to_string();
+
+ let paragraph = Paragraph::new(format!("{text}{}", &state.user_input))
+ .block(block)
+ .scroll((state.vertical_scroll as u16, 0));
+
+ let scrollbar =
+ Scrollbar::new(ScrollbarOrientation::VerticalRight).symbols(scrollbar::VERTICAL);
+
+ Widget::render(paragraph, area, buf);
+ StatefulWidget::render(scrollbar, area, buf, &mut state.vertical_scroll_state)
+ }
+}
