feat(cli): add completions command to jstz

crates/jstz_cli/Cargo.toml

@@ -56,6 +56,7 @@ env_logger = "0.11.1"
 log = "0.4.20"
 dialoguer = "0.11.0"
 prettytable = "0.10.0"
+clap_complete = "4.4.10"
 
 [[bin]]
 name = "jstz"

crates/jstz_cli/src/completions.rs

@@ -0,0 +1,12 @@
+use std::io;
+
+use clap::CommandFactory;
+use clap_complete::Shell;
+
+use crate::{error::Result, Command};
+
+pub fn exec(shell: Shell) -> Result<()> {
+    let cmd = &mut Command::command();
+    clap_complete::generate(shell, cmd, "jstz", &mut io::stdout());
+    Ok(())
+}

crates/jstz_cli/src/main.rs

@@ -2,6 +2,7 @@ use clap::Parser;
 
 mod account;
 mod bridge;
+mod completions;
 mod config;
 mod deploy;
 mod docs;
@@ -15,6 +16,7 @@ mod sandbox;
 mod term;
 mod utils;
 
+use clap_complete::Shell;
 use config::Config;
 use error::Result;
 use log::debug;
@@ -38,6 +40,12 @@ enum Command {
     /// 🔑 Interact with jstz's key-value store.
     #[command(subcommand)]
     Kv(kv::Command),
+    /// 🐚 Generates shell completions.
+    Completions {
+        /// The shell to generate completions for
+        #[arg(long, short)]
+        shell: Shell,
+    },
     /// 🚀 Deploys a smart function to jstz.
     Deploy {
         /// Function code.
@@ -90,6 +98,7 @@ enum Command {
 async fn exec(command: Command) -> Result<()> {
     match command {
         Command::Docs => docs::exec(),
+        Command::Completions { shell } => completions::exec(shell),
         Command::Sandbox(sandbox_command) => sandbox::exec(sandbox_command).await,
         Command::Bridge(bridge_command) => bridge::exec(bridge_command),
         Command::Account(account_command) => account::exec(account_command).await,