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@ -7,9 +7,15 @@ use crossterm::{
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use std::{
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use std::{
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fs::{self, File},
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fs::{self, File},
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io::{Read, StdoutLock, Write},
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io::{Read, StdoutLock, Write},
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path::Path,
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process::{Command, Stdio},
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};
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};
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use crate::{exercise::Exercise, info_file::ExerciseInfo};
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use crate::{
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embedded::{WriteStrategy, EMBEDDED_FILES},
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exercise::Exercise,
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info_file::ExerciseInfo,
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};
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const STATE_FILE_NAME: &str = ".rustlings-state.txt";
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const STATE_FILE_NAME: &str = ".rustlings-state.txt";
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const BAD_INDEX_ERR: &str = "The current exercise index is higher than the number of exercises";
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const BAD_INDEX_ERR: &str = "The current exercise index is higher than the number of exercises";
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@ -31,6 +37,7 @@ pub struct AppState {
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n_done: u16,
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n_done: u16,
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final_message: String,
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final_message: String,
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file_buf: Vec<u8>,
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file_buf: Vec<u8>,
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official_exercises: bool,
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}
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}
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impl AppState {
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impl AppState {
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@ -111,6 +118,7 @@ impl AppState {
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n_done: 0,
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n_done: 0,
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final_message,
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final_message,
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file_buf: Vec::with_capacity(2048),
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file_buf: Vec::with_capacity(2048),
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official_exercises: !Path::new("info.toml").exists(),
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};
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};
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let state_file_status = slf.update_from_file();
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let state_file_status = slf.update_from_file();
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@ -172,6 +180,53 @@ impl AppState {
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Ok(())
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Ok(())
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}
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}
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fn reset_path(&self, path: &str) -> Result<()> {
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if self.official_exercises {
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return EMBEDDED_FILES
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.write_exercise_to_disk(path, WriteStrategy::Overwrite)
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.with_context(|| format!("Failed to reset the exercise {path}"));
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}
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let output = Command::new("git")
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.arg("stash")
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.arg("push")
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.arg("--")
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.arg(path)
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.stdin(Stdio::null())
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.stdout(Stdio::null())
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.output()
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.with_context(|| format!("Failed to run `git stash push -- {path}`"))?;
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if !output.status.success() {
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bail!(
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"`git stash push -- {path}` didn't run successfully: {}",
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String::from_utf8_lossy(&output.stderr),
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);
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}
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Ok(())
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}
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pub fn reset_current_exercise(&mut self) -> Result<&'static str> {
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let path = self.current_exercise().path;
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self.set_pending(self.current_exercise_ind)?;
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self.reset_path(path)?;
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Ok(path)
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}
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pub fn reset_exercise_by_ind(&mut self, exercise_ind: usize) -> Result<&'static str> {
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if exercise_ind >= self.exercises.len() {
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bail!(BAD_INDEX_ERR);
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}
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let path = self.exercises[exercise_ind].path;
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self.set_pending(exercise_ind)?;
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self.reset_path(path)?;
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Ok(path)
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}
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fn next_pending_exercise_ind(&self) -> Option<usize> {
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fn next_pending_exercise_ind(&self) -> Option<usize> {
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if self.current_exercise_ind == self.exercises.len() - 1 {
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if self.current_exercise_ind == self.exercises.len() - 1 {
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// The last exercise is done.
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// The last exercise is done.
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