add clean command

mpt/src/commands/clean.rs

@@ -0,0 +1,24 @@
+use crate::{config::Config, util::CliStyle};
+
+pub async fn run(config: Config) -> anyhow::Result<()> {
+    // These operations are so incredibly performance-critical that we absolutely
+    // must execute them in parallel!
+    let (res1, res2) = tokio::join!(
+        async {
+            println!(
+                "{}",
+                format!("Deleting {}", config.locations.temp_dir.to_string_lossy()).info(),
+            );
+            tokio::fs::remove_dir_all(config.locations.temp_dir).await
+        },
+        async {
+            println!("{}", "Deleting build".info(),);
+            tokio::fs::remove_dir_all("build").await
+        }
+    );
+
+    res1?;
+    res2?;
+
+    Ok(())
+}

mpt/src/commands/mod.rs

@@ -1,3 +1,4 @@
 pub mod buildtwitch;
+pub mod clean;
 pub mod downloadmods;
 pub mod init;

mpt/src/main.rs

@@ -15,6 +15,7 @@ struct Opt {
 
 #[derive(StructOpt)]
 enum Command {
+    #[structopt(help = "Initializes a new modpack")]
     Init {
         #[structopt(help = "The name of the modpack")]
         modpack_name: String,
@@ -24,7 +25,7 @@ enum Command {
         mcversion: String,
     },
 
-    #[structopt(name = "downloadmods")]
+    #[structopt(name = "downloadmods", help = "Downloads mods of the pack")]
     DownloadMods {
         #[structopt(help = "Directory to download mods to")]
         dir: PathBuf,
@@ -32,7 +33,7 @@ enum Command {
         all: bool,
     },
 
-    #[structopt(name = "buildtwitch")]
+    #[structopt(name = "buildtwitch", help = "Builds a twitch export of the pack")]
     BuildTwitch {
         #[structopt(
             short,
@@ -41,6 +42,9 @@ enum Command {
         )]
         all: bool,
     },
+
+    #[structopt(help = "Deletes artifacts and temporary files")]
+    Clean,
 }
 
 #[tokio::main]
@@ -61,6 +65,8 @@ async fn main() -> anyhow::Result<()> {
         Command::BuildTwitch { all } => {
             commands::buildtwitch::run(util::parse_config_and_manifest().await?, all).await?
         },
+
+        Command::Clean => commands::clean::run(util::parse_config().await?).await?,
     }
 
     Ok(())