Merge pull request #5 from schultyy/add-windows-support

Add windows support

Cargo.toml

@@ -1,6 +1,6 @@
 [package]
 name = "os_type"
-version = "0.3.0"
+version = "0.4.0"
 authors = ["Jan Schulte <[email protected]>"]
 license = "MIT"
 description = "Detect the operating system type"

src/lib.rs

@@ -3,6 +3,7 @@ use std::fs;
 use std::convert::AsRef;
 use std::path::Path;
 mod lsb_release;
+mod windows_ver;
 
 ///A list of supported operating system types
 #[derive(Debug)]
@@ -12,7 +13,8 @@ pub enum OSType {
     Redhat,
     OSX,
     Ubuntu,
-    Debian
+    Debian,
+    Windows
 }
 
 fn file_exists<P: AsRef<Path>>(path: P) -> bool {
@@ -24,6 +26,14 @@ fn file_exists<P: AsRef<Path>>(path: P) -> bool {
     }
 }
 
+fn is_windows() -> bool {
+    if cfg!(target_os="windows") {
+        return true;
+    } else {
+        return false;
+    }
+}
+
 fn is_os_x() -> bool {
     match Command::new("sw_vers").output() {
         Ok(output) => output.status.success(),
@@ -61,6 +71,9 @@ pub fn current_platform() -> OSType {
     if is_os_x() {
         OSType::OSX
     }
+    else if is_windows() {
+        OSType::Windows
+    }
     else if lsb_release::is_available() {
         lsb_release()
     }

src/windows_ver.rs

@@ -0,0 +1,32 @@
+extern crate regex;
+
+use self::regex::Regex;
+use std::process::Command;
+
+pub struct WindowsVer {
+    pub version: Option<String>
+}
+
+pub fn retrieve() -> Option<WindowsVer> {
+    let output = match Command::new("ver").output() {
+        Ok(o) => o,
+        Err(_) => return None
+    };
+    let stdout = String::from_utf8_lossy(&output.stdout);
+    Some(parse(stdout.to_string()))
+}
+
+pub fn parse(output: String) -> WindowsVer {
+    let version_regex = Regex::new(r"^Microsoft Windows \[Version\s(\d+\.\d+\.\d+)\]$").unwrap();
+
+    let version = match version_regex.captures_iter(&output).next() {
+        Some(m) => {
+            match m.at(1) {
+                Some(version) => Some(version.to_string()),
+                None => None
+            }
+        },
+        None => None
+    };
+    WindowsVer { version: version }
+}

tests/windows_ver_test.rs

@@ -0,0 +1,12 @@
+#[path="../src/windows_ver.rs"]
+mod windows_ver;
+
+fn output() -> String {
+    "Microsoft Windows [Version 6.1.7601]".into()
+}
+
+#[test]
+pub fn test_parses_version() {
+    let parse_results = windows_ver::parse(output());
+    assert_eq!(parse_results.version, Some("6.1.7601".into()));
+}