Move crates under a sub folder to clean up the code

crates/xtask/src/bench/env_info.rs

@@ -0,0 +1,75 @@
+use serde::{Deserialize, Serialize};
+
+#[derive(Debug, Clone, Deserialize, Serialize)]
+#[serde(rename_all = "camelCase")]
+pub struct Environment {
+    pub hostname: Option<String>,
+    pub cpu: String,
+
+    /// Advertised or nominal clock speed in Hertz.
+    pub clock_speed: u64,
+
+    /// Total number of bytes of memory provided by the system. */
+    pub memory: u64,
+    pub os_type: String,
+    pub software: Vec<VersionInfo>,
+
+    pub user_name: String,
+
+    /// Is set true when the data was gathered by a manual run,
+    /// possibly on a developer machine, instead of the usual benchmark server.
+    pub manual_run: bool,
+}
+
+impl Environment {
+    pub fn generate_from_current_config() -> Self {
+        use sysinfo::System;
+
+        let unknown_string = String::from("Unknown");
+        let mut system = System::new();
+        system.refresh_cpu();
+        system.refresh_cpu_frequency();
+        system.refresh_memory();
+
+        let (cpu, frequency) = match system.cpus().first() {
+            Some(cpu) => (
+                format!("{} @ {:.2}GHz", cpu.brand(), cpu.frequency() as f64 / 1000.0),
+                cpu.frequency() * 1_000_000,
+            ),
+            None => (unknown_string.clone(), 0),
+        };
+
+        let mut software = Vec::new();
+        if let Some(distribution) = System::name() {
+            software
+                .push(VersionInfo { name: distribution, version: String::from("distribution") });
+        }
+        if let Some(kernel) = System::kernel_version() {
+            software.push(VersionInfo { name: kernel, version: String::from("kernel") });
+        }
+        if let Some(os) = System::os_version() {
+            software.push(VersionInfo { name: os, version: String::from("kernel-release") });
+        }
+        if let Some(arch) = System::cpu_arch() {
+            software.push(VersionInfo { name: arch, version: String::from("arch") });
+        }
+
+        Self {
+            hostname: System::host_name(),
+            cpu,
+            clock_speed: frequency,
+            memory: system.total_memory(),
+            os_type: System::long_os_version().unwrap_or(unknown_string.clone()),
+            user_name: System::name().unwrap_or(unknown_string.clone()),
+            manual_run: false,
+            software,
+        }
+    }
+}
+
+#[derive(Debug, Clone, Deserialize, Serialize)]
+#[serde(rename_all = "camelCase")]
+pub struct VersionInfo {
+    pub name: String,
+    pub version: String,
+}