Update cargo-dist config and build script (#314)

Signed-off-by: Sergio Castaño Arteaga <[email protected]>

Cargo.toml

@@ -8,10 +8,6 @@ rust-version = "1.70"
 repository = "https://github.com/cncf/landscape2"
 authors = ["Sergio Castaño Arteaga", "Cintia Sanchez Garcia"]
 
-[package.metadata.wix]
-upgrade-guid = "8B8B47D4-B0F2-4755-9288-1C5FCFCA9F92"
-path-guid = "5A454C4A-3A81-4F07-91A2-D8A181CC98B7"
-
 [dependencies]
 anyhow = "1.0.75"
 askama = { version = "0.12.1", features = ["serde-json"] }
@@ -66,6 +62,7 @@ mockall = "0.11.4"
 
 [build-dependencies]
 anyhow = "1.0.75"
+which = "5.0.0"
 
 # The profile that 'cargo dist' will build with
 [profile.dist]
@@ -79,11 +76,11 @@ cargo-dist-version = "0.4.0"
 # CI backends to support
 ci = ["github"]
 # The installers to generate for each app
-installers = ["shell", "powershell", "homebrew", "msi"]
+installers = ["shell", "homebrew"]
 # A GitHub repo to push Homebrew formulas to
 tap = "cncf/homebrew-landscape2"
 # Target platforms to build apps for (Rust target-triple syntax)
-targets = ["x86_64-unknown-linux-gnu", "aarch64-apple-darwin", "x86_64-apple-darwin", "x86_64-unknown-linux-musl", "x86_64-pc-windows-msvc"]
+targets = ["x86_64-unknown-linux-gnu", "aarch64-apple-darwin", "x86_64-apple-darwin", "x86_64-unknown-linux-musl"]
 # Publish jobs to run in CI
 publish-jobs = ["homebrew"]
 # Publish jobs to run in CI

build.rs

@@ -1,12 +1,20 @@
 use anyhow::{format_err, Result};
 use std::process::{Command, Output};
+use which::which;
 
 fn main() -> Result<()> {
     // Tell Cargo to rerun this build script if the web app changes
     println!("cargo:rerun-if-changed=web/src");
     println!("cargo:rerun-if-changed=web/static");
     println!("cargo:rerun-if-changed=web/index.html");
 
+    // Check if required external tools are available
+    if which("yarn").is_err() {
+        return Err(format_err!(
+            "yarn not found in PATH (it is required to build the web application)"
+        ));
+    }
+
     // Build web application
     let error = |cmd: &str, output: Output| {
         Err(format_err!(