add "Hide Name in Crashlogs" option

loader/resources/mod.json.in

@@ -104,6 +104,16 @@
             "name": "Expand Installed Mods List",
             "description": "Make the installed mods list a single infinite scrollable list instead of having pages"
         },
+        "hide-user-in-crashlogs": {
+            "type": "bool",
+            "default": true,
+            "name": "Hide Name in Crashlogs",
+            "description": "Replaces your username with \"<user>\" in crashlogs so you can share crashlogs without leaking your name.",
+            "platforms": [
+                "win",
+                "mac"
+            ]
+        },
         "developer-title": {
             "type": "title",
             "name": "Developer Settings"

loader/src/internal/crashlog.cpp

@@ -268,6 +268,23 @@ std::string crashlog::writeCrashlog(
     // this could also be done by saving a loader setting or smth but eh.
     (void)utils::file::writeBinary(crashlog::getCrashLogDirectory() / "last-crashed", {});
 
+    auto newInfo = std::string(info);
+    auto newStack = std::string(stacktrace);
+
+    #if defined(GEODE_IS_WINDOWS) || defined(GEODE_IS_MACOS)
+    if (Mod::get()->getSettingValue<bool>("hide-user-in-crashlogs")) {
+        const char* user = std::getenv("USER");
+        std::string newUser = "<user>";
+
+        // so we only replace file paths
+        newInfo = utils::string::replace(newInfo, fmt::format("\\{}\\", user), fmt::format("\\{}\\", newUser));
+        newInfo = utils::string::replace(newInfo, fmt::format("/{}/", user), fmt::format("/{}/", newUser));
+
+        newStack = utils::string::replace(newStack, fmt::format("\\{}\\", user), fmt::format("\\{}\\", newUser));
+        newStack = utils::string::replace(newStack, fmt::format("/{}/", user), fmt::format("/{}/", newUser));
+    }
+    #endif
+
     Buffer file;
 
     file.append(getDateString(false));
@@ -290,11 +307,11 @@ std::string crashlog::writeCrashlog(
 
     // exception info
     file.append("\n== Exception Information ==\n");
-    file.append(info);
+    file.append(newInfo);
 
     // stack trace
     file.append("\n== Stack Trace (the most important part) ==\n");
-    file.append(stacktrace);
+    file.append(newStack);
 
     // registers
     file.append("\n== Register States ==\n");