Musl check improvements

* Fix older linux compatibility with MUSL check
* Add check for alpine linux for older Linux Kernel or no ptrace permissions

Closes: #706
Co-authored-by: Andrew Pikler <[email protected]>

Author: pyckle

src/main/java/org/sqlite/util/OSInfo.java

@@ -125,7 +125,17 @@ public static boolean isMusl() {
                                 }
                             })
                     .anyMatch(s -> s.toLowerCase().contains("musl"));
-        } catch (IOException ignored) {
+        } catch (Exception ignored) {
+            // fall back to checking for alpine linux in the event we're using an older kernel which
+            // may not fail the above check
+            return isAlpineLinux();
+        }
+    }
+
+    private static boolean isAlpineLinux() {
+        try (Stream<String> osLines = Files.lines(Paths.get("/etc/os-release"))) {
+            return osLines.anyMatch(l -> l.startsWith("ID") && l.contains("alpine"));
+        } catch (Exception ignored2) {
         }
         return false;
     }
@@ -223,14 +233,14 @@ static String translateOSNameToFolderName(String osName) {
             return "Windows";
         } else if (osName.contains("Mac") || osName.contains("Darwin")) {
             return "Mac";
+        } else if (osName.contains("AIX")) {
+            return "AIX";
         } else if (isMusl()) {
             return "Linux-Musl";
         } else if (isAndroid()) {
             return "Linux-Android";
         } else if (osName.contains("Linux")) {
             return "Linux";
-        } else if (osName.contains("AIX")) {
-            return "AIX";
         } else {
             return osName.replaceAll("\\W", "");
         }