Support PureOS (fix #753) (#771)

src/steps/os/linux.rs

@@ -52,7 +52,7 @@ impl Distribution {
             Some("clear-linux-os") => Distribution::ClearLinux,
             Some("fedora") => Distribution::Fedora,
             Some("void") => Distribution::Void,
-            Some("debian") => Distribution::Debian,
+            Some("debian" | "pureos") => Distribution::Debian,
             Some("arch" | "anarchy" | "manjaro-arm" | "garuda" | "artix") => Distribution::Arch,
             Some("solus") => Distribution::Solus,
             Some("gentoo") => Distribution::Gentoo,
@@ -724,4 +724,9 @@ mod tests {
     fn test_garuda() {
         test_template(include_str!("os_release/garuda"), Distribution::Arch);
     }
+
+    #[test]
+    fn test_pureos() {
+        test_template(include_str!("os_release/pureos"), Distribution::Debian);
+    }
 }

src/steps/os/os_release/pureos

@@ -0,0 +1,6 @@
+ID=pureos
+NAME=PureOS
+PRETTY_NAME=PureOS
+
+VERSION_ID=10.0
+VERSION_CODENAME=byzantium