diff --git a/src/app_state.rs b/src/app_state.rs index 8fd8f3be..d7de1fdb 100644 --- a/src/app_state.rs +++ b/src/app_state.rs @@ -338,7 +338,7 @@ impl AppState { /// Mark the current exercise as done and move on to the next pending exercise if one exists. /// If all exercises are marked as done, run all of them to make sure that they are actually /// done. If an exercise which is marked as done fails, mark it as pending and continue on it. - pub fn done_current_exercise(&mut self, writer: &mut StdoutLock) -> Result { + pub fn done_current_exercise(&mut self, stdout: &mut StdoutLock) -> Result { let exercise = &mut self.exercises[self.current_exercise_ind]; if !exercise.done { exercise.done = true; @@ -350,7 +350,7 @@ impl AppState { return Ok(ExercisesProgress::NewPending); } - writer.write_all(RERUNNING_ALL_EXERCISES_MSG)?; + stdout.write_all(RERUNNING_ALL_EXERCISES_MSG)?; let n_exercises = self.exercises.len(); @@ -368,12 +368,12 @@ impl AppState { .collect::>(); for (exercise_ind, handle) in handles.into_iter().enumerate() { - write!(writer, "\rProgress: {exercise_ind}/{n_exercises}")?; - writer.flush()?; + write!(stdout, "\rProgress: {exercise_ind}/{n_exercises}")?; + stdout.flush()?; let success = handle.join().unwrap()?; if !success { - writer.write_all(b"\n\n")?; + stdout.write_all(b"\n\n")?; return Ok(Some(exercise_ind)); } } @@ -395,13 +395,13 @@ impl AppState { // Write that the last exercise is done. self.write()?; - clear_terminal(writer)?; - writer.write_all(FENISH_LINE.as_bytes())?; + clear_terminal(stdout)?; + stdout.write_all(FENISH_LINE.as_bytes())?; let final_message = self.final_message.trim_ascii(); if !final_message.is_empty() { - writer.write_all(final_message.as_bytes())?; - writer.write_all(b"\n")?; + stdout.write_all(final_message.as_bytes())?; + stdout.write_all(b"\n")?; } Ok(ExercisesProgress::AllDone) diff --git a/src/exercise.rs b/src/exercise.rs index ac5c6e6e..462287db 100644 --- a/src/exercise.rs +++ b/src/exercise.rs @@ -1,15 +1,27 @@ use anyhow::Result; -use crossterm::style::{style, StyledContent, Stylize}; -use std::{ - fmt::{self, Display, Formatter}, - io::Write, +use crossterm::{ + style::{Attribute, Color, ResetColor, SetAttribute, SetForegroundColor}, + QueueableCommand, }; +use std::io::{self, StdoutLock, Write}; -use crate::{cmd::CmdRunner, terminal_link::TerminalFileLink}; +use crate::{ + cmd::CmdRunner, + term::{terminal_file_link, write_ansi}, +}; /// The initial capacity of the output buffer. pub const OUTPUT_CAPACITY: usize = 1 << 14; +pub fn solution_link_line(stdout: &mut StdoutLock, solution_path: &str) -> io::Result<()> { + stdout.queue(SetAttribute(Attribute::Bold))?; + stdout.write_all(b"Solution")?; + stdout.queue(ResetColor)?; + stdout.write_all(b" for comparison: ")?; + terminal_file_link(stdout, solution_path, Color::Cyan)?; + stdout.write_all(b"\n") +} + // Run an exercise binary and append its output to the `output` buffer. // Compilation must be done before calling this method. fn run_bin( @@ -18,7 +30,9 @@ fn run_bin( cmd_runner: &CmdRunner, ) -> Result { if let Some(output) = output.as_deref_mut() { - writeln!(output, "{}", "Output".underlined())?; + write_ansi(output, SetAttribute(Attribute::Underlined)); + output.extend_from_slice(b"Output\n"); + write_ansi(output, ResetColor); } let success = cmd_runner.run_debug_bin(bin_name, output.as_deref_mut())?; @@ -28,13 +42,10 @@ fn run_bin( // This output is important to show the user that something went wrong. // Otherwise, calling something like `exit(1)` in an exercise without further output // leaves the user confused about why the exercise isn't done yet. - writeln!( - output, - "{}", - "The exercise didn't run successfully (nonzero exit code)" - .bold() - .red(), - )?; + write_ansi(output, SetAttribute(Attribute::Bold)); + write_ansi(output, SetForegroundColor(Color::Red)); + output.extend_from_slice(b"The exercise didn't run successfully (nonzero exit code)\n"); + write_ansi(output, ResetColor); } } @@ -53,18 +64,6 @@ pub struct Exercise { pub done: bool, } -impl Exercise { - pub fn terminal_link(&self) -> StyledContent> { - style(TerminalFileLink(self.path)).underlined().blue() - } -} - -impl Display for Exercise { - fn fmt(&self, f: &mut Formatter) -> fmt::Result { - self.path.fmt(f) - } -} - pub trait RunnableExercise { fn name(&self) -> &str; fn strict_clippy(&self) -> bool; diff --git a/src/init.rs b/src/init.rs index 2c172dca..40d9910d 100644 --- a/src/init.rs +++ b/src/init.rs @@ -1,5 +1,8 @@ use anyhow::{bail, Context, Result}; -use crossterm::style::Stylize; +use crossterm::{ + style::{Attribute, Color, ResetColor, SetAttribute, SetForegroundColor}, + QueueableCommand, +}; use serde::Deserialize; use std::{ env::set_current_dir, @@ -144,12 +147,13 @@ pub fn init() -> Result<()> { .status(); } - writeln!( - stdout, - "{}\n\n{}", - "Initialization done ✓".green(), - POST_INIT_MSG.bold(), - )?; + stdout.queue(SetForegroundColor(Color::Green))?; + stdout.write_all("Initialization done ✓\n\n".as_bytes())?; + stdout + .queue(ResetColor)? + .queue(SetAttribute(Attribute::Bold))?; + stdout.write_all(POST_INIT_MSG)?; + stdout.queue(ResetColor)?; Ok(()) } @@ -182,5 +186,6 @@ You probably already initialized Rustlings. Run `cd rustlings` Then run `rustlings` again"; -const POST_INIT_MSG: &str = "Run `cd rustlings` to go into the generated directory. -Then run `rustlings` to get started."; +const POST_INIT_MSG: &[u8] = b"Run `cd rustlings` to go into the generated directory. +Then run `rustlings` to get started. +"; diff --git a/src/main.rs b/src/main.rs index 61dd8ea8..998d3d11 100644 --- a/src/main.rs +++ b/src/main.rs @@ -22,7 +22,6 @@ mod init; mod list; mod run; mod term; -mod terminal_link; mod watch; const CURRENT_FORMAT_VERSION: u8 = 1; diff --git a/src/run.rs b/src/run.rs index 09e53ec9..929b4751 100644 --- a/src/run.rs +++ b/src/run.rs @@ -1,11 +1,17 @@ -use anyhow::{bail, Result}; -use crossterm::style::{style, Stylize}; -use std::io::{self, Write}; +use anyhow::Result; +use crossterm::{ + style::{Color, ResetColor, SetForegroundColor}, + QueueableCommand, +}; +use std::{ + io::{self, Write}, + process::exit, +}; use crate::{ app_state::{AppState, ExercisesProgress}, - exercise::{RunnableExercise, OUTPUT_CAPACITY}, - terminal_link::TerminalFileLink, + exercise::{solution_link_line, RunnableExercise, OUTPUT_CAPACITY}, + term::terminal_file_link, }; pub fn run(app_state: &mut AppState) -> Result<()> { @@ -19,35 +25,31 @@ pub fn run(app_state: &mut AppState) -> Result<()> { if !success { app_state.set_pending(app_state.current_exercise_ind())?; - bail!( - "Ran {} with errors", - app_state.current_exercise().terminal_link(), - ); + stdout.write_all(b"Ran ")?; + terminal_file_link(&mut stdout, app_state.current_exercise().path, Color::Blue)?; + stdout.write_all(b" with errors\n")?; + exit(1); } - writeln!( - stdout, - "{}{}", - "✓ Successfully ran ".green(), - exercise.path.green(), - )?; + stdout.queue(SetForegroundColor(Color::Green))?; + stdout.write_all("✓ Successfully ran ".as_bytes())?; + stdout.write_all(exercise.path.as_bytes())?; + stdout.queue(ResetColor)?; + stdout.write_all(b"\n")?; if let Some(solution_path) = app_state.current_solution_path()? { - writeln!( - stdout, - "\n{} for comparison: {}\n", - "Solution".bold(), - style(TerminalFileLink(&solution_path)).underlined().cyan(), - )?; + stdout.write_all(b"\n")?; + solution_link_line(&mut stdout, &solution_path)?; + stdout.write_all(b"\n")?; } match app_state.done_current_exercise(&mut stdout)? { + ExercisesProgress::CurrentPending | ExercisesProgress::NewPending => { + stdout.write_all(b"Next exercise: ")?; + terminal_file_link(&mut stdout, app_state.current_exercise().path, Color::Blue)?; + stdout.write_all(b"\n")?; + } ExercisesProgress::AllDone => (), - ExercisesProgress::CurrentPending | ExercisesProgress::NewPending => writeln!( - stdout, - "Next exercise: {}", - app_state.current_exercise().terminal_link(), - )?, } Ok(()) diff --git a/src/term.rs b/src/term.rs index b993108e..4c6ac904 100644 --- a/src/term.rs +++ b/src/term.rs @@ -1,10 +1,13 @@ -use std::io::{self, BufRead, StdoutLock, Write}; +use std::{ + fmt, fs, + io::{self, BufRead, StdoutLock, Write}, +}; use crossterm::{ cursor::MoveTo, - style::{Color, ResetColor, SetForegroundColor}, + style::{Attribute, Color, ResetColor, SetAttribute, SetForegroundColor}, terminal::{Clear, ClearType}, - QueueableCommand, + Command, QueueableCommand, }; /// Terminal progress bar to be used when not using Ratataui. @@ -68,3 +71,43 @@ pub fn press_enter_prompt(stdout: &mut StdoutLock) -> io::Result<()> { stdout.write_all(b"\n")?; Ok(()) } + +pub fn terminal_file_link(stdout: &mut StdoutLock, path: &str, color: Color) -> io::Result<()> { + let canonical_path = fs::canonicalize(path).ok(); + + let Some(canonical_path) = canonical_path.as_deref().and_then(|p| p.to_str()) else { + return stdout.write_all(path.as_bytes()); + }; + + // Windows itself can't handle its verbatim paths. + #[cfg(windows)] + let canonical_path = if canonical_path.len() > 5 && &canonical_path[0..4] == r"\\?\" { + &canonical_path[4..] + } else { + canonical_path + }; + + stdout + .queue(SetForegroundColor(color))? + .queue(SetAttribute(Attribute::Underlined))?; + write!( + stdout, + "\x1b]8;;file://{canonical_path}\x1b\\{path}\x1b]8;;\x1b\\", + )?; + stdout.queue(ResetColor)?; + + Ok(()) +} + +pub fn write_ansi(output: &mut Vec, command: impl Command) { + struct FmtWriter<'a>(&'a mut Vec); + + impl fmt::Write for FmtWriter<'_> { + fn write_str(&mut self, s: &str) -> fmt::Result { + self.0.extend_from_slice(s.as_bytes()); + Ok(()) + } + } + + let _ = command.write_ansi(&mut FmtWriter(output)); +} diff --git a/src/terminal_link.rs b/src/terminal_link.rs deleted file mode 100644 index 9bea07d9..00000000 --- a/src/terminal_link.rs +++ /dev/null @@ -1,26 +0,0 @@ -use std::{ - fmt::{self, Display, Formatter}, - fs, -}; - -pub struct TerminalFileLink<'a>(pub &'a str); - -impl<'a> Display for TerminalFileLink<'a> { - fn fmt(&self, f: &mut Formatter<'_>) -> fmt::Result { - let path = fs::canonicalize(self.0); - - if let Some(path) = path.as_deref().ok().and_then(|path| path.to_str()) { - // Windows itself can't handle its verbatim paths. - #[cfg(windows)] - let path = if path.len() > 5 && &path[0..4] == r"\\?\" { - &path[4..] - } else { - path - }; - - write!(f, "\x1b]8;;file://{path}\x1b\\{}\x1b]8;;\x1b\\", self.0) - } else { - write!(f, "{}", self.0) - } - } -} diff --git a/src/watch/state.rs b/src/watch/state.rs index 40e3d3ec..f9fd1389 100644 --- a/src/watch/state.rs +++ b/src/watch/state.rs @@ -1,16 +1,17 @@ use anyhow::Result; use crossterm::{ - style::{style, Stylize}, - terminal, + style::{ + Attribute, Attributes, Color, ResetColor, SetAttribute, SetAttributes, SetForegroundColor, + }, + terminal, QueueableCommand, }; use std::io::{self, StdoutLock, Write}; use crate::{ app_state::{AppState, ExercisesProgress}, clear_terminal, - exercise::{RunnableExercise, OUTPUT_CAPACITY}, - term::progress_bar, - terminal_link::TerminalFileLink, + exercise::{solution_link_line, RunnableExercise, OUTPUT_CAPACITY}, + term::{progress_bar, terminal_file_link}, }; #[derive(PartialEq, Eq)] @@ -21,7 +22,7 @@ enum DoneStatus { } pub struct WatchState<'a> { - writer: StdoutLock<'a>, + stdout: StdoutLock<'a>, app_state: &'a mut AppState, output: Vec, show_hint: bool, @@ -31,10 +32,11 @@ pub struct WatchState<'a> { impl<'a> WatchState<'a> { pub fn new(app_state: &'a mut AppState, manual_run: bool) -> Self { - let writer = io::stdout().lock(); + // TODO: Take stdout as arg. + let stdout = io::stdout().lock(); Self { - writer, + stdout, app_state, output: Vec::with_capacity(OUTPUT_CAPACITY), show_hint: false, @@ -45,14 +47,14 @@ impl<'a> WatchState<'a> { #[inline] pub fn into_writer(self) -> StdoutLock<'a> { - self.writer + self.stdout } pub fn run_current_exercise(&mut self) -> Result<()> { self.show_hint = false; writeln!( - self.writer, + self.stdout, "\nChecking the exercise `{}`. Please wait…", self.app_state.current_exercise().name, )?; @@ -98,75 +100,101 @@ impl<'a> WatchState<'a> { return Ok(ExercisesProgress::CurrentPending); } - self.app_state.done_current_exercise(&mut self.writer) + self.app_state.done_current_exercise(&mut self.stdout) } fn show_prompt(&mut self) -> io::Result<()> { - self.writer.write_all(b"\n")?; - if self.manual_run { - write!(self.writer, "{}:run / ", 'r'.bold())?; + self.stdout.queue(SetAttribute(Attribute::Bold))?; + self.stdout.write_all(b"r")?; + self.stdout.queue(ResetColor)?; + self.stdout.write_all(b":run / ")?; } if self.done_status != DoneStatus::Pending { - write!(self.writer, "{}:{} / ", 'n'.bold(), "next".underlined())?; + self.stdout.queue(SetAttribute(Attribute::Bold))?; + self.stdout.write_all(b"n")?; + self.stdout.queue(ResetColor)?; + self.stdout.write_all(b":")?; + self.stdout.queue(SetAttribute(Attribute::Underlined))?; + self.stdout.write_all(b"next")?; + self.stdout.queue(ResetColor)?; + self.stdout.write_all(b" / ")?; } if !self.show_hint { - write!(self.writer, "{}:hint / ", 'h'.bold())?; + self.stdout.queue(SetAttribute(Attribute::Bold))?; + self.stdout.write_all(b"h")?; + self.stdout.queue(ResetColor)?; + self.stdout.write_all(b":hint / ")?; } - write!(self.writer, "{}:list / {}:quit ? ", 'l'.bold(), 'q'.bold())?; + self.stdout.queue(SetAttribute(Attribute::Bold))?; + self.stdout.write_all(b"l")?; + self.stdout.queue(ResetColor)?; + self.stdout.write_all(b":list / ")?; - self.writer.flush() + self.stdout.queue(SetAttribute(Attribute::Bold))?; + self.stdout.write_all(b"q")?; + self.stdout.queue(ResetColor)?; + self.stdout.write_all(b":quit ? ")?; + + self.stdout.flush() } pub fn render(&mut self) -> io::Result<()> { // Prevent having the first line shifted if clearing wasn't successful. - self.writer.write_all(b"\n")?; - clear_terminal(&mut self.writer)?; + self.stdout.write_all(b"\n")?; + clear_terminal(&mut self.stdout)?; - self.writer.write_all(&self.output)?; + self.stdout.write_all(&self.output)?; if self.show_hint { - writeln!( - self.writer, - "{}\n{}\n", - "Hint".bold().cyan().underlined(), - self.app_state.current_exercise().hint, - )?; + self.stdout + .queue(SetAttributes( + Attributes::from(Attribute::Bold).with(Attribute::Underlined), + ))? + .queue(SetForegroundColor(Color::Cyan))?; + self.stdout.write_all(b"Hint\n")?; + self.stdout.queue(ResetColor)?; + + self.stdout + .write_all(self.app_state.current_exercise().hint.as_bytes())?; + self.stdout.write_all(b"\n\n")?; } if self.done_status != DoneStatus::Pending { - writeln!(self.writer, "{}", "Exercise done ✓".bold().green())?; + self.stdout + .queue(SetAttribute(Attribute::Bold))? + .queue(SetForegroundColor(Color::Green))?; + self.stdout.write_all("Exercise done ✓\n".as_bytes())?; + self.stdout.queue(ResetColor)?; if let DoneStatus::DoneWithSolution(solution_path) = &self.done_status { - writeln!( - self.writer, - "{} for comparison: {}", - "Solution".bold(), - style(TerminalFileLink(solution_path)).underlined().cyan(), - )?; + solution_link_line(&mut self.stdout, solution_path)?; } writeln!( - self.writer, + self.stdout, "When done experimenting, enter `n` to move on to the next exercise 🦀\n", )?; } let line_width = terminal::size()?.0; progress_bar( - &mut self.writer, + &mut self.stdout, self.app_state.n_done(), self.app_state.exercises().len() as u16, line_width, )?; - writeln!( - self.writer, - "\nCurrent exercise: {}", - self.app_state.current_exercise().terminal_link(), + + self.stdout.write_all(b"\nCurrent exercise: ")?; + terminal_file_link( + &mut self.stdout, + self.app_state.current_exercise().path, + Color::Blue, )?; + self.stdout.write_all(b"\n\n")?; self.show_prompt()?;