build.rs to update version in Cargo.toml for cargo bundle and cargo wix

Author: hacknus

Cargo.toml

@@ -6,7 +6,6 @@ authors = ["Linus Leo Stöckli"]
 description = "Serial Monitor and Plotter written in rust."
 license = "GPL-3.0"
 homepage = "https://github.com/hacknus/serial-monitor-rust"
-# See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html
 
 [dependencies]
 csv = "1.3"
@@ -25,6 +24,9 @@ serde = { version = "1.0", features = ["derive"] }
 serialport = { version = "4.6.1", features = ["serde"] }
 log = "0.4.22"
 
+[build-dependencies]
+regex = "1.11"
+
 [package.metadata.bundle]
 name = "Serial Monitor"
 identifier = "com.hacknus.serial_monitor"

build.rs

@@ -1,3 +1,38 @@
+use std::fs;
 fn main() {
     println!("cargo:rustc-env=MACOSX_DEPLOYMENT_TARGET=10.8");
+
+    // Get the package version from the environment variable
+    let version = env!("CARGO_PKG_VERSION");
+
+    // Define the paths to `Cargo.toml`
+    let cargo_toml_path = "Cargo.toml";
+
+    // Read `Cargo.toml`
+    let content = fs::read_to_string(cargo_toml_path).expect("Failed to read Cargo.toml");
+
+    // Replace `version = ...` only within `[package.metadata.bundle]` and `[package.metadata.wix]`
+    let updated_content = content
+        .lines()
+        .map(|line| {
+            if line.trim_start().starts_with("version =") {
+                // Check if we're inside the relevant sections
+                if content.contains("[package.metadata.bundle]")
+                    || content.contains("[package.metadata.wix]")
+                {
+                    format!(r#"version = "{}""#, version)
+                } else {
+                    line.to_string()
+                }
+            } else {
+                line.to_string()
+            }
+        })
+        .collect::<Vec<_>>()
+        .join("\n");
+
+    // Write the updated content back to `Cargo.toml`
+    fs::write(cargo_toml_path, updated_content).expect("Failed to write updated Cargo.toml");
+
+    println!("cargo:rerun-if-changed={}", cargo_toml_path);
 }