cli/debug: Add hardenedBsd detection

This is conditional on the target operating system being FreeBSDs.
HardenedBSD is FreeBSD but with changes. We determine which one it is,
by running 'sysctl --values hardening.version'.

Co-authored-by: Shawn Webb <shawn.webb@hardenedbsd.org>

crates/radicle-cli/src/commands/debug.rs

@@ -60,6 +60,7 @@ fn debug(profile: Option<&Profile>) -> anyhow::Result<()> {
         arch: std::env::consts::ARCH,
         env,
         warnings: collect_warnings(profile),
+        hardened_bsd: hardened_bsd(),
     };
 
     term::println(serde_json::to_string_pretty(&debug).unwrap());
@@ -73,6 +74,21 @@ fn os_release() -> Option<HashMap<String, String>> {
         .map(|map| map.into_iter().map(|(k, v)| (k.to_string(), v)).collect())
 }
 
+#[cfg(target_os = "freebsd")]
+fn hardened_bsd() -> Option<String> {
+    let mut cmd = Command::new("sysctl");
+    cmd.args(["sysctl", "--values", "hardening.version"]);
+    cmd.output()
+        .ok()
+        .map(|output| String::from_utf8_lossy(&output.stdout).trim().to_string())
+}
+
+#[cfg(not(target_os = "freebsd"))]
+#[inline]
+const fn hardened_bsd() -> Option<String> {
+    None
+}
+
 #[derive(Debug, Serialize)]
 #[allow(dead_code)]
 #[serde(rename_all = "camelCase")]
@@ -91,6 +107,8 @@ struct DebugInfo {
     arch: &'static str,
     env: BTreeMap<String, String>,
 
+    hardened_bsd: Option<String>,
+
     #[serde(skip_serializing_if = "Vec::is_empty")]
     warnings: Vec<String>,
 }