bin/*: extended --version output

build.rs

@@ -0,0 +1,40 @@
+fn get_git_commit() -> Option<String> {
+    let repo = git2::Repository::discover(".").ok()?;
+    let head = repo.head().ok()?;
+    let commit = head.peel_to_commit().ok()?;
+    Some(commit.id().to_string())
+}
+
+fn embed_build_time_info() {
+    let commit = option_env!("GIT_COMMIT")
+        .map(|s| s.to_string())
+        .or_else(get_git_commit)
+        .unwrap_or_else(|| "unknown".to_string());
+
+    let build_profile = std::env::var("OUT_DIR")
+        .unwrap_or_else(|_| "unknown".to_string())
+        .split(std::path::MAIN_SEPARATOR)
+        .nth_back(3)
+        .unwrap_or("unknown")
+        .to_string();
+
+    let dependencies = build_info_build::build_script()
+        .collect_runtime_dependencies(build_info_build::DependencyDepth::Depth(1))
+        .build()
+        .crate_info
+        .dependencies
+        .into_iter()
+        .map(|dep| format!("{}: {}", dep.name, dep.version))
+        .collect::<Vec<_>>()
+        .join(";");
+
+    println!("cargo:rustc-env=GIT_COMMIT={}", commit);
+    println!("cargo:rustc-env=BUILD_PROFILE={}", build_profile);
+    println!("cargo:rustc-env=DEPENDENCY_LIST={}", dependencies);
+}
+
+fn main() -> anyhow::Result<()> {
+    embed_build_time_info();
+
+    Ok(())
+}