Use deleteOnExit on windows

Closes #15

Signed-off-by: DeathsGun <deathsgun@protonmail.com>

Author: DeathsGun

src/main/java/xyz/deathsgun/modmanager/tasks/ModRemovalTask.java

@@ -25,6 +25,8 @@
 import xyz.deathsgun.modmanager.api.manipulation.TaskCallback;
 import xyz.deathsgun.modmanager.api.mod.SummarizedMod;
 import xyz.deathsgun.modmanager.util.FabricMods;
+import xyz.deathsgun.modmanager.util.InstallationUtil;
+import xyz.deathsgun.modmanager.util.OS;
 
 import java.nio.file.Files;
 import java.nio.file.Path;
@@ -53,7 +55,11 @@ protected void execute() throws Exception {
         if (jar == null) {
             throw new Exception(String.format("Couldn't find jar for %s", subject.name()));
         }
-        Files.delete(jar);
+        if (InstallationUtil.getCurrentOS() != OS.WINDOWS) {
+            Files.delete(jar);
+        } else {
+            jar.toFile().deleteOnExit();
+        }
         ModManager.getModManipulationManager().removeManuallyInstalled(subject);
     }
 

src/main/java/xyz/deathsgun/modmanager/tasks/ModUpdateTask.java

@@ -8,6 +8,7 @@
 import xyz.deathsgun.modmanager.api.mod.SummarizedMod;
 import xyz.deathsgun.modmanager.util.FabricMods;
 import xyz.deathsgun.modmanager.util.InstallationUtil;
+import xyz.deathsgun.modmanager.util.OS;
 
 import java.nio.file.Files;
 import java.nio.file.Path;
@@ -40,7 +41,11 @@ protected void execute() throws Exception {
         if (jar == null) {
             throw new Exception(String.format("Couldn't find jar for %s", subject.name()));
         }
-        Files.delete(jar);
+        if (InstallationUtil.getCurrentOS() != OS.WINDOWS) {
+            Files.delete(jar);
+        } else {
+            jar.toFile().deleteOnExit();
+        }
         InstallationUtil.downloadMod(http, InstallationUtil.getVersionForMod(subject));
         ModManager.getModManipulationManager().markManuallyUpdated(subject);
         ModManager.getUpdateChecker().removeUpdate(subject.id());

src/main/java/xyz/deathsgun/modmanager/util/InstallationUtil.java

@@ -56,4 +56,12 @@ public static void downloadMod(HttpClient http, ModVersion version) throws Excep
         }
     }
 
+    public static OS getCurrentOS() {
+        String name = System.getProperty("os.name");
+        if (name.contains("win")) {
+            return OS.WINDOWS;
+        }
+        return name.contains("mac") ? OS.MACOS : OS.LINUX;
+    }
+
 }

src/main/java/xyz/deathsgun/modmanager/util/OS.java

@@ -0,0 +1,7 @@
+package xyz.deathsgun.modmanager.util;
+
+public enum OS {
+
+    LINUX, MACOS, WINDOWS
+
+}