refactor(node-core/matrics): refactor the register version metrics function

crates/node-core/src/metrics/prometheus_exporter.rs

@@ -1,6 +1,6 @@
 //! Prometheus exporter
 
-use crate::metrics::version_metrics::register_version_metrics;
+use crate::metrics::version_metrics::VersionInfo;
 use eyre::WrapErr;
 use futures::{future::FusedFuture, FutureExt};
 use http::Response;
@@ -151,7 +151,7 @@ where
     process.describe();
     describe_memory_stats();
     describe_io_stats();
-    register_version_metrics();
+    VersionInfo::default().register_version_metrics();
 
     Ok(())
 }

crates/node-core/src/metrics/version_metrics.rs

@@ -3,16 +3,48 @@
 use crate::version::{build_profile_name, VERGEN_GIT_SHA};
 use metrics::gauge;
 
-const LABELS: [(&str, &str); 6] = [
-    ("version", env!("CARGO_PKG_VERSION")),
-    ("build_timestamp", env!("VERGEN_BUILD_TIMESTAMP")),
-    ("cargo_features", env!("VERGEN_CARGO_FEATURES")),
-    ("git_sha", VERGEN_GIT_SHA),
-    ("target_triple", env!("VERGEN_CARGO_TARGET_TRIPLE")),
-    ("build_profile", build_profile_name()),
-];
+/// Contains version information for the application.
+#[derive(Debug, Clone)]
+pub struct VersionInfo {
+    /// The version of the application.
+    pub version: &'static str,
+    /// The build timestamp of the application.
+    pub build_timestamp: &'static str,
+    /// The cargo features enabled for the build.
+    pub cargo_features: &'static str,
+    /// The Git SHA of the build.
+    pub git_sha: &'static str,
+    /// The target triple for the build.
+    pub target_triple: &'static str,
+    /// The build profile (e.g., debug or release).
+    pub build_profile: &'static str,
+}
+
+impl Default for VersionInfo {
+    fn default() -> Self {
+        Self {
+            version: env!("CARGO_PKG_VERSION"),
+            build_timestamp: env!("VERGEN_BUILD_TIMESTAMP"),
+            cargo_features: env!("VERGEN_CARGO_FEATURES"),
+            git_sha: VERGEN_GIT_SHA,
+            target_triple: env!("VERGEN_CARGO_TARGET_TRIPLE"),
+            build_profile: build_profile_name(),
+        }
+    }
+}
+
+impl VersionInfo {
+    /// This exposes reth's version information over prometheus.
+    pub fn register_version_metrics(&self) {
+        let labels: [(&str, &str); 6] = [
+            ("version", self.version),
+            ("build_timestamp", self.build_timestamp),
+            ("cargo_features", self.cargo_features),
+            ("git_sha", self.git_sha),
+            ("target_triple", self.target_triple),
+            ("build_profile", self.build_profile),
+        ];
 
-/// This exposes reth's version information over prometheus.
-pub fn register_version_metrics() {
-    let _gauge = gauge!("info", &LABELS);
+        let _gauge = gauge!("info", &labels);
+    }
 }