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@ -1,5 +1,6 @@
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use anyhow::{bail, Context, Error, Result};
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use std::{
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use std::{
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fs::{create_dir, OpenOptions},
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fs::{create_dir, create_dir_all, OpenOptions},
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io::{self, Write},
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io::{self, Write},
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};
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};
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@ -14,7 +15,7 @@ pub enum WriteStrategy {
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}
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}
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impl WriteStrategy {
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impl WriteStrategy {
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fn write(self, path: &str, content: &[u8]) -> io::Result<()> {
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fn write(self, path: &str, content: &[u8]) -> Result<()> {
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let file = match self {
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let file = match self {
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Self::IfNotExists => OpenOptions::new().create_new(true).write(true).open(path),
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Self::IfNotExists => OpenOptions::new().create_new(true).write(true).open(path),
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Self::Overwrite => OpenOptions::new()
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Self::Overwrite => OpenOptions::new()
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@ -24,7 +25,9 @@ impl WriteStrategy {
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.open(path),
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.open(path),
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};
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};
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file?.write_all(content)
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file.context("Failed to open the file `{path}` in write mode")?
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.write_all(content)
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.context("Failed to write the file {path}")
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}
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}
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}
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}
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@ -39,16 +42,22 @@ struct ExerciseDir {
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}
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}
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impl ExerciseDir {
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impl ExerciseDir {
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fn init_on_disk(&self) -> io::Result<()> {
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fn init_on_disk(&self) -> Result<()> {
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if let Err(e) = create_dir(format!("exercises/{}", self.name)) {
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let dir_path = format!("exercises/{}", self.name);
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if let Err(e) = create_dir(&dir_path) {
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if e.kind() == io::ErrorKind::AlreadyExists {
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if e.kind() == io::ErrorKind::AlreadyExists {
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return Ok(());
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return Ok(());
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}
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}
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return Err(e);
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return Err(
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Error::from(e).context(format!("Failed to create the directory {dir_path}"))
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);
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}
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}
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WriteStrategy::Overwrite.write(&format!("exercises/{}/README.md", self.name), self.readme)
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WriteStrategy::Overwrite
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.write(&format!("exercises/{}/README.md", self.name), self.readme)?;
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Ok(())
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}
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}
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}
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}
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@ -58,8 +67,8 @@ pub struct EmbeddedFiles {
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}
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}
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impl EmbeddedFiles {
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impl EmbeddedFiles {
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pub fn init_exercises_dir(&self, exercise_infos: &[ExerciseInfo]) -> io::Result<()> {
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pub fn init_exercises_dir(&self, exercise_infos: &[ExerciseInfo]) -> Result<()> {
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create_dir("exercises")?;
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create_dir("exercises").context("Failed to create the directory `exercises`")?;
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WriteStrategy::IfNotExists.write(
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WriteStrategy::IfNotExists.write(
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"exercises/README.md",
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"exercises/README.md",
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@ -77,15 +86,32 @@ impl EmbeddedFiles {
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Ok(())
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Ok(())
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}
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}
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pub fn write_exercise_to_disk(&self, exercise_ind: usize, dir_name: &str, path: &str) -> io::Result<()> {
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pub fn write_exercise_to_disk(
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&self,
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exercise_ind: usize,
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dir_name: &str,
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path: &str,
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) -> Result<()> {
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let Some(dir) = self.exercise_dirs.iter().find(|dir| dir.name == dir_name) else {
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let Some(dir) = self.exercise_dirs.iter().find(|dir| dir.name == dir_name) else {
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return Err(io::Error::new(
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bail!("`{dir_name}` not found in the embedded directories");
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io::ErrorKind::NotFound,
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format!("`{dir_name}` not found in the embedded directories"),
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));
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};
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};
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dir.init_on_disk()?;
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dir.init_on_disk()?;
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WriteStrategy::Overwrite.write(path, self.exercise_files[exercise_ind].exercise)
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WriteStrategy::Overwrite.write(path, self.exercise_files[exercise_ind].exercise)
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}
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}
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pub fn write_solution_to_disk(
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&self,
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exercise_ind: usize,
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dir_name: &str,
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exercise_name: &str,
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) -> Result<()> {
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let dir_path = format!("solutions/{dir_name}");
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create_dir_all(&dir_path).context("Failed to create the directory {dir_path}")?;
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WriteStrategy::Overwrite.write(
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&format!("{dir_path}/{exercise_name}.rs"),
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self.exercise_files[exercise_ind].solution,
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)
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}
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}
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}
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