feat: initial implementation

NAMESPACE

@@ -1,4 +1,4 @@
 # Generated by roxygen2: do not edit by hand
 
-export(hello_world)
+export(os_info)
 useDynLib(osinfo, .registration = TRUE)

R/extendr-wrappers.R

@@ -1,12 +1,18 @@
+# Generated by extendr: Do not edit by hand
+
 # nolint start
 
+#
+# This file was created with the following call:
+#   .Call("wrap__make_osinfo_wrappers", use_symbols = TRUE, package_name = "osinfo")
+
 #' @docType package
 #' @usage NULL
 #' @useDynLib osinfo, .registration = TRUE
 NULL
 
-#' Return string `"Hello world!"` to R.
-#' @export
-hello_world <- function() .Call(wrap__hello_world)
+#' get os information
+os_info_impl <- function() .Call(wrap__os_info_impl)
+
 
 # nolint end

R/os-info.R

@@ -0,0 +1,5 @@
+#' get os info
+#' @export
+os_info <- function() {
+  os_info_impl()
+}

src/rust/Cargo.toml

@@ -10,3 +10,4 @@ name = 'osinfo'
 
 [dependencies]
 extendr-api = '*'
+os_info = { version = "3", default-features = false }

src/rust/src/lib.rs

@@ -1,16 +1,27 @@
 use extendr_api::prelude::*;
 
-/// Return string `"Hello world!"` to R.
-/// @export
+#[derive(Debug, PartialEq, IntoDataFrameRow)]
+struct OsInfo {
+    version: String,
+    os_type: String,
+    architecture: Option<String>,
+}
+/// get os information
 #[extendr]
-fn hello_world() -> &'static str {
-    "Hello world!"
+fn os_info_impl() -> List {
+    let info = os_info::get();
+    list!(
+        version = info.version().to_string(),
+        os_type = info.os_type().to_string(),
+        architecture = info.architecture(),
+        codename = info.codename()
+    )
 }
 
 // Macro to generate exports.
 // This ensures exported functions are registered with R.
 // See corresponding C code in `entrypoint.c`.
 extendr_module! {
     mod osinfo;
-    fn hello_world;
+    fn os_info_impl;
 }