Add logout command

src/commands/login.rs

@@ -121,6 +121,19 @@ pub struct LoginCommand {
     pub list: bool,
 }
 
+/// Log out of Fermyon Cloud.
+#[derive(Parser, Debug)]
+pub struct LogoutCommand {
+    /// The environment name to log out of.
+    #[clap(
+        name = "environment-name",
+        long = "environment-name",
+        env = DEPLOYMENT_ENV_NAME_ENV,
+        hidden = true
+    )]
+    pub deployment_env_id: Option<String>,
+}
+
 fn parse_url(url: &str) -> Result<url::Url> {
     let mut url = Url::parse(url).map_err(|error| {
         anyhow::format_err!(
@@ -313,6 +326,30 @@ impl LoginCommand {
     }
 }
 
+impl LogoutCommand {
+    pub async fn run(&self) -> Result<()> {
+        let path = self.config_file_path()?;
+        if path.is_file() {
+            std::fs::remove_file(path)?;
+        }
+        Ok(())
+    }
+
+    fn config_file_path(&self) -> Result<PathBuf> {
+        let root = config_root_dir()?;
+
+        let file_stem = match &self.deployment_env_id {
+            None => "config",
+            Some(id) => id,
+        };
+        let file = format!("{}.json", file_stem);
+
+        let path = root.join(file);
+
+        Ok(path)
+    }
+}
+
 fn config_root_dir() -> Result<PathBuf, anyhow::Error> {
     let root = dirs::config_dir()
         .context("Cannot find configuration directory")?

src/main.rs

@@ -9,7 +9,7 @@ use commands::{
     apps::AppsCommand,
     deploy::DeployCommand,
     link::{LinkCommand, UnlinkCommand},
-    login::LoginCommand,
+    login::{LoginCommand, LogoutCommand},
     logs::LogsCommand,
     sqlite::SqliteCommand,
     variables::VariablesCommand,
@@ -34,8 +34,10 @@ enum CloudCli {
     Apps(AppsCommand),
     /// Package and upload an application to the Fermyon Cloud.
     Deploy(DeployCommand),
-    /// Login to Fermyon Cloud
+    /// Log into Fermyon Cloud
     Login(LoginCommand),
+    /// Log out of Fermyon Cloud
+    Logout(LogoutCommand),
     /// Fetch logs for an app from Fermyon Cloud
     Logs(LogsCommand),
     /// Manage Spin application variables
@@ -65,6 +67,7 @@ async fn main() -> Result<(), Error> {
         CloudCli::Apps(cmd) => cmd.run().await,
         CloudCli::Deploy(cmd) => cmd.run().await,
         CloudCli::Login(cmd) => cmd.run().await,
+        CloudCli::Logout(cmd) => cmd.run().await,
         CloudCli::Logs(cmd) => cmd.run().await,
         CloudCli::Variables(cmd) => cmd.run().await,
         CloudCli::Sqlite(cmd) => cmd.run().await,