RUST-1268 Use rustc_version_runtime for runtime metadata (#622) (#624)

Author: kmahar

Cargo.toml

@@ -65,6 +65,7 @@ openssl-probe = { version = "0.1.5", optional = true }
 os_info = { version = "3.0.1", default-features = false }
 percent-encoding = "2.0.0"
 rand = { version = "0.8.3", features = ["small_rng"] }
+rustc_version_runtime = "0.1.4"
 rustls-pemfile = "0.3.0"
 serde_with = "1.3.1"
 sha-1 = "0.10.0"
@@ -79,7 +80,6 @@ tokio-openssl = { version = "0.6.3", optional = true }
 trust-dns-proto = "0.21.1"
 trust-dns-resolver = "0.21.1"
 typed-builder = "0.10.0"
-version_check = "0.9.1"
 webpki-roots = "0.22.2"
 zstd = { version = "0.11.0", optional = true }
 

src/cmap/establish/handshake/mod.rs

@@ -35,7 +35,7 @@ struct ClientMetadata {
     application: Option<AppMetadata>,
     driver: DriverMetadata,
     os: OsMetadata,
-    platform: Option<String>,
+    platform: String,
 }
 
 #[derive(Clone, Debug)]
@@ -74,10 +74,7 @@ impl From<ClientMetadata> for Bson {
         );
 
         metadata_doc.insert("os", metadata.os);
-
-        if let Some(platform) = metadata.platform {
-            metadata_doc.insert("platform", platform);
-        }
+        metadata_doc.insert("platform", metadata.platform);
 
         Bson::Document(metadata_doc)
     }
@@ -118,7 +115,7 @@ lazy_static! {
                 name: None,
                 version: None,
             },
-            platform: None,
+            platform: format!("{} with {}", rustc_version_runtime::version_meta().short_version_string, RUNTIME_NAME),
         };
 
         let info = os_info::get();
@@ -131,11 +128,6 @@ lazy_static! {
             }
         }
 
-        if let Some((version, channel, date)) = version_check::triple() {
-            metadata.platform =
-                Some(format!("rustc {} {} ({}) with {}", version, channel, date, RUNTIME_NAME));
-        }
-
         metadata
     };
 }
@@ -181,11 +173,9 @@ impl Handshaker {
                     metadata.driver.version.push_str(version);
                 }
 
-                if let Some(ref mut platform) = metadata.platform {
-                    if let Some(ref driver_info_platform) = driver_info.platform {
-                        platform.push('|');
-                        platform.push_str(driver_info_platform);
-                    }
+                if let Some(ref driver_info_platform) = driver_info.platform {
+                    metadata.platform.push('|');
+                    metadata.platform.push_str(driver_info_platform);
                 }
             }