Add uninstall command

src/args.rs

@@ -28,6 +28,10 @@ pub enum Command {
     #[command()]
     Install(InstallArgs),
 
+    /// Uninstalls the given node version
+    #[command()]
+    Uninstall(UninstallArgs),
+
     /// Sets the specified version as the global default
     #[command()]
     Default(DefaultArgs),
@@ -69,6 +73,12 @@ pub struct InstallArgs {
     pub version: NodeVersion,
 }
 
+#[derive(Clone, Debug, Parser)]
+pub struct UninstallArgs {
+    /// the version to install
+    pub version: NodeVersion,
+}
+
 #[derive(Clone, Debug, Parser)]
 pub struct DefaultArgs {
     /// The version to set as default

src/main.rs

@@ -39,6 +39,7 @@ async fn main() -> Result<()> {
 
     match args.command {
         args::Command::Install(v) => nenv.install(v.version).await,
+        args::Command::Uninstall(v) => nenv.uninstall(v.version).await,
         args::Command::Default(v) => nenv.set_system_default(v.version).await,
         args::Command::Exec(args) => {
             let exit_code = nenv.exec(args.command, args.args).await?;

src/nenv.rs

@@ -62,6 +62,24 @@ impl Nenv {
         }
     }
 
+    #[tracing::instrument(skip(self))]
+    pub async fn uninstall(&mut self, version: NodeVersion) -> Result<()> {
+        if prompt(
+            false,
+            format!(
+                "Do you really want to uninstall node {}?",
+                version.to_string().bold()
+            ),
+        ) {
+            self.repo.uninstall(&version).await?;
+            println!("Node {} has been removed.", version.to_string().bold())
+        } else {
+            println!("Nothing changed.");
+        }
+
+        Ok(())
+    }
+
     /// Sets the system-wide default version
     #[tracing::instrument(skip(self))]
     pub async fn set_system_default(&mut self, version: NodeVersion) -> Result<()> {

src/repository/mod.rs

@@ -13,7 +13,7 @@ use crate::{
     versioning::{SimpleVersion, VersionMetadata},
 };
 
-use miette::{IntoDiagnostic, Result};
+use miette::{Context, IntoDiagnostic, Result};
 
 use self::{
     downloader::{versions::Versions, NodeDownloader},
@@ -175,6 +175,24 @@ impl Repository {
         Ok(())
     }
 
+    /// Uninstalls the given node version by deleting the versions directory
+    #[tracing::instrument(level = "debug", skip(self))]
+    pub async fn uninstall(&mut self, version: &NodeVersion) -> Result<()> {
+        let info = self.lookup_version(version).await?;
+        let version_dir = NODE_VERSIONS_DIR.join(info.version.to_string());
+
+        if !version_dir.exists() {
+            return Err(VersionError::not_installed(version).into());
+        }
+
+        fs::remove_dir_all(version_dir)
+            .await
+            .into_diagnostic()
+            .context("Deleting node version")?;
+
+        Ok(())
+    }
+
     /// Performs a lookup for the given node version
     #[tracing::instrument(level = "debug", skip(self))]
     pub async fn lookup_version(&mut self, version_req: &NodeVersion) -> Result<&VersionMetadata> {

src/utils.rs

@@ -3,7 +3,7 @@ use std::{
     time::Duration,
 };
 
-use dialoguer::Confirm;
+use dialoguer::{theme::ColorfulTheme, Confirm};
 use indicatif::{ProgressBar, ProgressStyle};
 
 pub fn progress_bar(total: u64) -> ProgressBar {
@@ -32,7 +32,7 @@ pub fn progress_spinner() -> ProgressBar {
 }
 
 pub fn prompt<S: ToString>(default: bool, prompt: S) -> bool {
-    Confirm::new()
+    Confirm::with_theme(&ColorfulTheme::default())
         .with_prompt(prompt.to_string())
         .default(default)
         .interact()