Add build revision to splash screen

build.rs

@@ -3,12 +3,14 @@ use std::env;
 use std::fs::{self, read_to_string, File};
 use std::io::Write;
 use std::path::Path;
+use std::process::Command;
 use std::result::Result;
 
 const COMMAND_REGEX: &str = r"pub fn (.*)\(app: &mut Application\) -> Result";
 
 fn main() {
     generate_commands();
+    set_build_revision();
 }
 
 /// This build task generates a Rust snippet which, when included later on in
@@ -90,3 +92,20 @@ fn module_name(path: &Path) -> Result<String, &str> {
         })
         .ok_or("Unable to parse command module from file name")
 }
+
+fn set_build_revision() {
+    // Run the Git command to get the current commit hash
+    let output = Command::new("git")
+        .args(&["rev-parse", "--short", "HEAD"])
+        .output()
+        .expect("Failed to execute git command");
+
+    // Parse the hash
+    let build_revision = String::from_utf8(output.stdout)
+        .expect("Invalid UTF-8 sequence")
+        .trim()
+        .to_string();
+
+    // Write the hash as an environment variable
+    println!("cargo:rustc-env=BUILD_REVISION={}", build_revision);
+}

src/presenters/modes/normal.rs

@@ -43,6 +43,7 @@ pub fn display(
     } else {
         let content = [
             format!("Amp v{}", env!("CARGO_PKG_VERSION")),
+            format!("Build revision {}", env!("BUILD_REVISION")),
             String::from("© 2015-2024 Jordan MacDonald"),
             String::from(" "),
             String::from("Press \"?\" to view quick start guide"),