Add a metric on the number of uploaded files

src/db/file.rs

@@ -196,7 +196,10 @@ pub fn add_path_into_database<P: AsRef<Path>>(conn: &Connection,
                     match s3_res {
                         // we've successfully uploaded the content, so steal it;
                         // we don't want to put it in the DB
-                        Ok(_) => break None,
+                        Ok(_) => {
+                            crate::web::metrics::UPLOADED_FILES_TOTAL.inc_by(1);
+                            break None;
+                        },
                         // Since s3 was configured, we want to panic on failure to upload.
                         Err(e) => {
                             log::error!("failed to upload to {}: {:?}", bucket_path, e);
@@ -240,6 +243,7 @@ pub fn add_path_into_database<P: AsRef<Path>>(conn: &Connection,
                                 WHERE path = $1",
                                 &[&path, &mime, &content]));
             }
+            crate::web::metrics::UPLOADED_FILES_TOTAL.inc_by(1);
         }
     }
 

src/web/metrics.rs

@@ -35,6 +35,11 @@ lazy_static! {
         "Number of builds that did not complete due to not being a library"
     )
     .unwrap();
+    pub static ref UPLOADED_FILES_TOTAL: IntCounter = register_int_counter!(
+        "docsrs_uploaded_files_total",
+        "Number of files uploaded to S3 or stored in the database"
+    )
+    .unwrap();
 }
 
 pub fn metrics_handler(req: &mut Request) -> IronResult<Response> {

src/web/mod.rs

@@ -438,6 +438,7 @@ pub fn start_web_server(sock_addr: Option<&str>) {
     metrics::SUCCESSFUL_BUILDS.inc_by(0);
     metrics::FAILED_BUILDS.inc_by(0);
     metrics::NON_LIBRARY_BUILDS.inc_by(0);
+    metrics::UPLOADED_FILES_TOTAL.inc_by(0);
 
     let cratesfyi = CratesfyiHandler::new();
     Iron::new(cratesfyi).http(sock_addr.unwrap_or("0.0.0.0:3000")).unwrap();