apply cargo fmt changes

Author: jcgruenhage

src/lib.rs

@@ -250,7 +250,8 @@ impl PrometheusMetrics {
         endpoint: Option<&str>,
         replacements: Vec<(Regex, String)>,
     ) -> Result<Self, Box<dyn std::error::Error>> {
-        let (http_requests_total, http_requests_duration_seconds) = Self::register_metrics(&registry, namespace)?;
+        let (http_requests_total, http_requests_duration_seconds) =
+            Self::register_metrics(&registry, namespace)?;
         Ok(PrometheusMetrics {
             http_requests_total,
             http_requests_duration_seconds,
@@ -273,7 +274,8 @@ impl PrometheusMetrics {
         namespace: &str,
         endpoint: Option<&str>,
     ) -> Result<Self, Box<std::error::Error>> {
-        let (http_requests_total, http_requests_duration_seconds) = Self::register_metrics(&registry, namespace)?;
+        let (http_requests_total, http_requests_duration_seconds) =
+            Self::register_metrics(&registry, namespace)?;
         Ok(PrometheusMetrics {
             http_requests_total,
             http_requests_duration_seconds,
@@ -287,14 +289,15 @@ impl PrometheusMetrics {
         })
     }
 
-    fn register_metrics(registry: &Registry, namespace: &str) -> prometheus::Result<(IntCounterVec, HistogramVec)> {
-        let http_requests_total_opts = opts!(
-            "http_requests_total", "Total number of HTTP requests"
-        ).namespace(namespace);
-        let http_requests_total = IntCounterVec::new(
-            http_requests_total_opts,
-            &["endpoint", "method", "status"],
-        ).unwrap();
+    fn register_metrics(
+        registry: &Registry,
+        namespace: &str,
+    ) -> prometheus::Result<(IntCounterVec, HistogramVec)> {
+        let http_requests_total_opts =
+            opts!("http_requests_total", "Total number of HTTP requests").namespace(namespace);
+        let http_requests_total =
+            IntCounterVec::new(http_requests_total_opts, &["endpoint", "method", "status"])
+                .unwrap();
 
         registry.register(Box::new(http_requests_total.clone()))?;
 
@@ -306,7 +309,8 @@ impl PrometheusMetrics {
         let http_requests_duration_seconds = HistogramVec::new(
             http_requests_duration_seconds_opts.into(),
             &["endpoint", "method", "status"],
-        ).unwrap();
+        )
+        .unwrap();
 
         registry.register(Box::new(http_requests_duration_seconds.clone()))?;
 
@@ -345,7 +349,13 @@ impl PrometheusMetrics {
         self.update_metrics_inner(path, method, status, clock)
     }
 
-    fn update_metrics_inner(&self, path: &str, method: &Method, status: StatusCode, clock: SystemTime) {
+    fn update_metrics_inner(
+        &self,
+        path: &str,
+        method: &Method,
+        status: StatusCode,
+        clock: SystemTime,
+    ) {
         let method = method.to_string();
         let status = status.as_u16().to_string();