WIP: exec command

src/commands/env.rs

@@ -1,6 +1,6 @@
 use super::Command;
 use crate::{
-    env::{self, get_env_vars},
+    env::{self, get_env_vars, get_setenv_commands},
     shell::{self, ShellEnv},
     success, warning,
 };
@@ -47,7 +47,7 @@ impl Command for Env {
             return apply_profile(&shell);
         }
 
-        let vars = get_env_vars(&shell)?;
+        let vars = get_setenv_commands(&shell)?;
         println!("{}", vars);
 
         Ok(())

src/commands/exec.rs

@@ -0,0 +1,32 @@
+use std::{
+    io::{self, Write},
+    process::{self, Stdio},
+};
+
+use clap::Args;
+
+use crate::{env::get_env_vars, shell, Command};
+
+/// Display the currently selected version of Go.
+#[derive(Args)]
+#[command(visible_aliases = ["e", "run"])]
+pub struct Exec {
+    args: Vec<String>,
+}
+
+impl Command for Exec {
+    fn run(&self) -> anyhow::Result<()> {
+        let shell = shell::get_shell();
+
+        let env_vars = get_env_vars(&shell)?;
+
+        let out = process::Command::new("go")
+            .envs(env_vars)
+            .args(&self.args)
+            .output()?;
+
+        io::stdout().write_all(&out.stdout)?;
+
+        Ok(())
+    }
+}

src/commands/mod.rs

@@ -1,4 +1,4 @@
-crate::prelude!(current, env, ls, lsr, r#use, drop, clean, check);
+crate::prelude!(current, env, ls, lsr, r#use, drop, clean, check, exec);
 
 use anyhow::Result;
 

src/env/shared.rs

@@ -13,16 +13,22 @@ use whattheshell::Shell;
 const CURRENT_VERSION_FILE: &str = ".current_version";
 
 /// Returns all required environment variables.
-pub fn get_env_vars(shell: &Shell) -> Result<String> {
+pub fn get_env_vars(shell: &Shell) -> Result<Vec<(&'static str, String)>> {
     let path = std::env::var("PATH")?;
 
-    let vars = [
+    Ok(vec![
         (
             "PATH",
             shell.append_to_path(&path, &shell.path_to_string(get_current_bin_dir()?)?)?,
         ),
         ("GOROOT", shell.path_to_string(get_current_install_dir()?)?),
-    ];
+    ])
+}
+
+pub fn get_setenv_commands(shell: &Shell) -> Result<String> {
+    let path = std::env::var("PATH")?;
+
+    let vars = get_env_vars(shell)?;
 
     let lines: Result<Vec<_>, _> = vars
         .iter()

src/main.rs

@@ -31,7 +31,7 @@ struct App {
     command: Commands,
 }
 
-register_commands!(Check, Clean, Current, Drop, Env, Ls, Lsr, Use);
+register_commands!(Check, Clean, Current, Drop, Env, Ls, Lsr, Use, Exec);
 
 fn main() {
     let app = App::parse();