prettify build.rs a bit

crates/librqbit/build.rs

@@ -1,7 +1,36 @@
-use anyhow::Context;
+use anyhow::{bail, Context};
 use std::path::Path;
 use std::process::Command;
 
+fn run(cwd: &Path, cmd: &str) -> anyhow::Result<()> {
+    #[cfg(target_os = "windows")]
+    let (shell, shell_args) = ("powershell", ["-command"].as_slice());
+    #[cfg(not(target_os = "windows"))]
+    let (shell, shell_args) = ("bash", ["-c"].as_slice());
+
+    // Run "npm install" in the webui directory
+    let output = Command::new(shell)
+        .args(shell_args)
+        .arg(cmd)
+        .current_dir(cwd)
+        .output()
+        .with_context(|| format!("Failed to execute {} in {:?}", cmd, cwd))?;
+
+    if !output.status.success() {
+        bail!(
+            "\"{}\" failed\n\nstderr: {}\n\nstdout: {}",
+            cmd,
+            String::from_utf8_lossy(&output.stderr),
+            String::from_utf8_lossy(&output.stdout)
+        );
+    }
+
+    // Optionally print the stdout output if you want to see the build logs
+    println!("{}", String::from_utf8_lossy(&output.stdout));
+
+    Ok(())
+}
+
 fn main() {
     #[cfg(feature = "webui")]
     {