Use self detection of Linux distribution

src/linux.rs

@@ -0,0 +1,43 @@
+use failure;
+use std::fs;
+
+#[derive(Copy, Clone, Debug)]
+pub enum Distribution {
+    Arch,
+    CentOS,
+    Fedora,
+    Debian,
+    Ubuntu,
+}
+
+#[derive(Debug, Fail)]
+#[fail(display = "Unknown Linux Distribution")]
+struct UnknownLinuxDistribution;
+
+impl Distribution {
+    pub fn detect() -> Result<Self, failure::Error> {
+        let content = fs::read_to_string("/etc/os-release")?;
+
+        if content.contains("Arch") {
+            return Ok(Distribution::Arch);
+        }
+
+        if content.contains("CentOS") {
+            return Ok(Distribution::CentOS);
+        }
+
+        if content.contains("Fedora") {
+            return Ok(Distribution::Fedora);
+        }
+
+        if content.contains("Ubuntu") {
+            return Ok(Distribution::Ubuntu);
+        }
+
+        if content.contains("Debian") {
+            return Ok(Distribution::Debian);
+        }
+
+        Err(UnknownLinuxDistribution.into())
+    }
+}