Add clear-cache command

src/args.rs

@@ -20,6 +20,10 @@ pub enum Command {
     #[command(short_flag = 'v', aliases = &["--version"])]
     Version,
 
+    /// Initializes nenv directories and installs a default node version
+    #[command()]
+    Init,
+
     /// Installs the given node version
     #[command()]
     Install(InstallArgs),
@@ -43,9 +47,9 @@ pub enum Command {
     #[command()]
     Exec(ExecArgs),
 
-    /// Initializes nenv directories and installs a default node version
+    /// Clears the download cache
     #[command()]
-    Init,
+    ClearCache,
 }
 
 #[derive(Clone, Debug, Parser)]

src/main.rs

@@ -48,6 +48,7 @@ async fn main() -> Result<()> {
         args::Command::RemapBinaries => nenv.remap().await,
         args::Command::ListVersions => nenv.list_versions().await,
         args::Command::Init => nenv.init_nenv().await,
+        args::Command::ClearCache => nenv.clear_cache().await,
         _ => xkcd_unreachable!(),
     }?;
 

src/nenv.rs

@@ -2,7 +2,7 @@ use std::{ffi::OsString, str::FromStr};
 
 use crate::{
     config::ConfigAccess,
-    consts::{BIN_DIR, VERSION_FILE_PATH},
+    consts::{BIN_DIR, CACHE_DIR, VERSION_FILE_PATH},
     error::VersionError,
     mapper::Mapper,
     repository::{NodeVersion, Repository},
@@ -11,7 +11,7 @@ use crate::{
 };
 use crossterm::style::Stylize;
 use dialoguer::{theme::ColorfulTheme, Input, Select};
-use miette::{IntoDiagnostic, Result};
+use miette::{Context, IntoDiagnostic, Result};
 use tokio::fs;
 
 pub struct Nenv {
@@ -138,6 +138,7 @@ impl Nenv {
     }
 
     /// Initializes nenv and prompts for a default version.
+    #[tracing::instrument(skip(self))]
     pub async fn init_nenv(&mut self) -> Result<()> {
         let items = vec!["latest", "lts", "custom"];
         let selection = Select::with_theme(&ColorfulTheme::default())
@@ -170,6 +171,22 @@ impl Nenv {
         Ok(())
     }
 
+    /// Clears the download cache
+    #[tracing::instrument(skip(self))]
+    pub async fn clear_cache(&self) -> Result<()> {
+        fs::remove_dir_all(&*CACHE_DIR)
+            .await
+            .into_diagnostic()
+            .context("Removing cache directory")?;
+        fs::create_dir_all(&*CACHE_DIR)
+            .await
+            .into_diagnostic()
+            .context("Creating cache directory")?;
+        println!("Cleared download cache.");
+
+        Ok(())
+    }
+
     /// Persits all changes made that aren't written to the disk yet
     #[tracing::instrument(level = "debug", skip(self))]
     pub async fn persist(&self) -> Result<()> {