Fixed chunk range for restore

+ A single chunk can now also be restored
+ clippy+fmt

README.md

@@ -24,6 +24,9 @@ SUBCOMMANDS:
     export     Export a backup as a single player world
     help       Prints this message or the help of the given subcommand(s)
     restore    Restore certain chunks from a backup
+
+Process finished with exit code 1
+
 ```
 
 ## Examples
@@ -35,9 +38,13 @@ Exporting a backup to a single player world:
 
 `albatorss -c test.toml export backups/04-11-20_01.51.27_backup.tar.gz sp.tar.gz`
 
+Restoring a single chunk (from -2,-2 to 2,2):
+
+`albatorss -c test.toml restore world backups/04-11-20_01.51.27_backup.tar.gz sp.tar.gz` (0,0)
+
 Restoring a range of chunks (from -2,-2 to 2,2):
 
-`albatorss -c test.toml restore world backups/04-11-20_01.51.27_backup.tar.gz sp.tar.gz` -2 -2 2 2
+`albatorss -c test.toml restore world backups/04-11-20_01.51.27_backup.tar.gz sp.tar.gz` (-2,-2) -u (2,2)
 
 ## Config
 ```toml

src/backup.rs

@@ -219,7 +219,6 @@ pub fn convert_backup_to_sp(
     backup: &PathBuf,
     output: &PathBuf,
 ) -> Result<(), std::io::Error> {
-
     let extract_path = uncompress_backup(backup)?;
 
     if let Some(worlds) = &config.world_config {

src/chunk_coordinate.rs

@@ -0,0 +1,62 @@
+use regex::Regex;
+use std::error::Error;
+use std::fmt;
+use std::num::ParseIntError;
+use std::str::FromStr;
+
+/// Chunk error
+#[derive(Debug)]
+pub enum ChunkCoordinateErr {
+    /// Error parsing integer
+    ParseIntError(ParseIntError),
+    /// Regex error
+    RegexError(regex::Error),
+    /// Invalid chunk coordinate given
+    InvalidChunk,
+}
+
+impl From<ParseIntError> for ChunkCoordinateErr {
+    fn from(e: ParseIntError) -> Self {
+        Self::ParseIntError(e)
+    }
+}
+
+impl From<regex::Error> for ChunkCoordinateErr {
+    fn from(e: regex::Error) -> Self {
+        Self::RegexError(e)
+    }
+}
+
+impl fmt::Display for ChunkCoordinateErr {
+    fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
+        write!(f, "Unable to parse chunk range: {:?}", self)
+    }
+}
+
+impl Error for ChunkCoordinateErr {}
+
+/// Chunk Coordinate paiir
+#[derive(Debug)]
+pub struct ChunkCoordinate {
+    /// X Coordinate
+    pub x: i32,
+    /// Z Coordinate
+    pub z: i32,
+}
+
+impl FromStr for ChunkCoordinate {
+    type Err = ChunkCoordinateErr;
+
+    fn from_str(s: &str) -> Result<Self, Self::Err> {
+        let re = Regex::new(r"\((?P<x>-?[0-9]*),(?P<z>-?[0-9]*)\)").unwrap();
+
+        if let Some(cap) = re.captures(s) {
+            let x = cap["x"].parse::<i32>()?;
+            let z = cap["z"].parse::<i32>()?;
+
+            Ok(Self { x, z })
+        } else {
+            Err(ChunkCoordinateErr::InvalidChunk)
+        }
+    }
+}

src/main.rs

@@ -2,14 +2,16 @@ use std::path::PathBuf;
 use structopt::StructOpt;
 
 mod backup;
+mod chunk_coordinate;
 mod config;
 mod discord;
 mod region;
 mod restore;
 
 use crate::backup::{convert_backup_to_sp, do_backup};
+use crate::chunk_coordinate::ChunkCoordinate;
 use crate::config::AlbatrossConfig;
-use crate::restore::{restore_range_from_backup, restore_chunk_from_backup};
+use crate::restore::{restore_chunk_from_backup, restore_range_from_backup};
 
 #[derive(Debug, StructOpt)]
 #[structopt(about = "Backup your Minecraft Server!")]
@@ -50,8 +52,11 @@ enum SubCommand {
         /// Backup to restore from
         #[structopt(parse(from_os_str))]
         backup_path: PathBuf,
-        /// Backup range can be a single chunk coordinate pair or a chunk range
-        chunk_range: Vec<i32>,
+        /// Chunk to backup
+        chunk: ChunkCoordinate,
+        /// Upper chunk range bound
+        #[structopt(short, long)]
+        upper_bound: Option<ChunkCoordinate>,
     },
 }
 
@@ -84,29 +89,34 @@ fn main() {
                 server_directory,
                 world_name,
                 backup_path,
-                chunk_range
+                chunk,
+                upper_bound,
             } => {
                 println!("Starting restore");
 
                 let server_directory = match server_directory {
                     Some(dir) => dir,
-                    None => cfg.backup.minecraft_dir
+                    None => cfg.backup.minecraft_dir,
                 };
 
-                if chunk_range.len() > 2 {
-                    let lower_x = chunk_range[0];
-                    let lower_z = chunk_range[1];
-                    let upper_x = chunk_range[2];
-                    let upper_z = chunk_range[3];
-                    match restore_range_from_backup(world_name.as_str(), lower_x, upper_x, lower_z, upper_z, &backup_path, &server_directory) {
+                if let Some(upper_bound) = upper_bound {
+                    match restore_range_from_backup(
+                        world_name.as_str(),
+                        chunk,
+                        upper_bound,
+                        &backup_path,
+                        &server_directory,
+                    ) {
                         Ok(count) => println!("Restored {} chunks!", count),
                         Err(e) => println!("Error restoring backup: {:?}", e),
                     };
-                }
-                else if chunk_range.len() == 2 {
-                    let x = chunk_range[0];
-                    let z = chunk_range[1];
-                    match restore_chunk_from_backup(world_name.as_str(), x, z, &backup_path, &server_directory) {
+                } else {
+                    match restore_chunk_from_backup(
+                        world_name.as_str(),
+                        chunk,
+                        &backup_path,
+                        &server_directory,
+                    ) {
                         Ok(_) => println!("Restored chunk!"),
                         Err(e) => println!("Error restoring backup: {:?}", e),
                     };

src/restore.rs

@@ -1,45 +1,64 @@
-use anvil_region::AnvilChunkProvider;
-use std::path::PathBuf;
 use crate::backup::uncompress_backup;
+use crate::chunk_coordinate::ChunkCoordinate;
+use anvil_region::AnvilChunkProvider;
 use std::error;
 use std::fs::remove_dir_all;
+use std::path::PathBuf;
 
-struct ChunkAccess {
+/// Struct for manipulating a world from a backup
+struct RestoreAccess {
+    /// Chunk source
     src_path: PathBuf,
+    /// Chunk destination
     dest_path: PathBuf,
 }
 
-impl ChunkAccess {
-    pub fn new(world_name: &str, src_path: &PathBuf, dest_path: &PathBuf) -> Result<Self, std::io::Error> {
+impl RestoreAccess {
+    /// Create new RestoreAccess
+    pub fn new(
+        world_name: &str,
+        src_path: &PathBuf,
+        dest_path: &PathBuf,
+    ) -> Result<Self, std::io::Error> {
         let src_path = uncompress_backup(src_path)?.join(world_name).join("region");
-        let dest_path= dest_path.join("region");
+        let dest_path = dest_path.join(world_name).join("region");
 
-        Ok(ChunkAccess {
+        Ok(RestoreAccess {
             src_path,
             dest_path,
         })
     }
 
-    pub fn copy_chunk(&self, x:i32, z:i32) {
+    /// Copy chunk from source to desination
+    pub fn copy_chunk(&self, x: i32, z: i32) {
         let src_provider = AnvilChunkProvider::new(self.src_path.to_str().unwrap());
         let dest_provider = AnvilChunkProvider::new(self.dest_path.to_str().unwrap());
 
         let chunk = src_provider.load_chunk(x, z).expect("Unable to load chunk");
-        dest_provider.save_chunk(x, z, chunk).expect("Unable to save chunk");
+        dest_provider
+            .save_chunk(x, z, chunk)
+            .expect("Unable to save chunk");
     }
 
+    /// Cleanup process
     pub fn cleanup(self) -> Result<(), std::io::Error> {
         remove_dir_all("tmp")
     }
-
 }
 
-pub fn restore_range_from_backup(world_name: &str, lower_x: i32, upper_x: i32, lower_z: i32, upper_z: i32, backup_path: &PathBuf, minecraft_dir: &PathBuf) -> Result<u64, Box<dyn error::Error>> {
-    let chunk_access = ChunkAccess::new(world_name, backup_path, minecraft_dir)?;
+/// Restore a range of chunks from a backup
+pub fn restore_range_from_backup(
+    world_name: &str,
+    lower: ChunkCoordinate,
+    upper: ChunkCoordinate,
+    backup_path: &PathBuf,
+    minecraft_dir: &PathBuf,
+) -> Result<u64, Box<dyn error::Error>> {
+    let chunk_access = RestoreAccess::new(world_name, backup_path, minecraft_dir)?;
     let mut count = 0;
 
-    for x in lower_x..upper_x {
-        for z in lower_z..upper_z {
+    for x in lower.x..=upper.x {
+        for z in lower.z..=upper.z {
             chunk_access.copy_chunk(x, z);
             count += 1;
         }
@@ -49,9 +68,15 @@ pub fn restore_range_from_backup(world_name: &str, lower_x: i32, upper_x: i32, l
     Ok(count)
 }
 
-pub fn restore_chunk_from_backup(world_name: &str, x: i32, z: i32, backup_path: &PathBuf, minecraft_dir: &PathBuf) -> Result<(), Box<dyn error::Error>> {
-    let chunk_access = ChunkAccess::new(world_name, backup_path, minecraft_dir)?;
-    chunk_access.copy_chunk(x, z);
+/// Restore a single chunk from a backup
+pub fn restore_chunk_from_backup(
+    world_name: &str,
+    chunk: ChunkCoordinate,
+    backup_path: &PathBuf,
+    minecraft_dir: &PathBuf,
+) -> Result<(), Box<dyn error::Error>> {
+    let chunk_access = RestoreAccess::new(world_name, backup_path, minecraft_dir)?;
+    chunk_access.copy_chunk(chunk.x, chunk.z);
 
     chunk_access.cleanup()?;
     Ok(())