Cherry-pick SysInfo from #680

Signed-off-by: timoreo <contact@timoreo.fr>

launcher/CMakeLists.txt

@@ -580,6 +580,8 @@ SET(LAUNCHER_SOURCES
     UpdateController.h
     ApplicationMessage.h
     ApplicationMessage.cpp
+    SysInfo.h
+    SysInfo.cpp
 
     # GUI - general utilities
     DesktopServices.h

launcher/SysInfo.cpp

@@ -0,0 +1,155 @@
+#include <QString>
+#include <QDebug>
+#include "settings/SettingsObject.h"
+#ifdef Q_OS_MACOS
+#include <sys/sysctl.h>
+#endif
+#include <FileSystem.h>
+#include <QStandardPaths>
+#include <QFileInfo>
+#include "MessageLevel.h"
+#include <QFile>
+#include <QProcess>
+#include <QMap>
+#include "java/JavaUtils.h"
+#include "FileSystem.h"
+#include "Commandline.h"
+#include "Application.h"
+
+#ifdef Q_OS_MACOS
+bool rosettaDetect() {
+    int ret = 0;
+    size_t size = sizeof(ret);
+    if (sysctlbyname("sysctl.proc_translated", &ret, &size, NULL, 0) == -1)
+    {
+        return false;
+    }
+    if(ret == 0)
+    {
+        return false;
+    }
+    if(ret == 1)
+    {
+        return true;
+    }
+    return false;
+}
+#endif
+
+namespace SysInfo {
+QString currentSystem() {
+#if defined(Q_OS_LINUX)
+    return "linux";
+#elif defined(Q_OS_MACOS)
+    return "osx";
+#elif defined(Q_OS_WINDOWS)
+    return "windows";
+#elif defined(Q_OS_FREEBSD)
+    return "freebsd";
+#elif defined(Q_OS_OPENBSD)
+    return "openbsd";
+#else
+    return "unknown";
+#endif
+}
+
+QString useQTForArch(){
+    auto qtArch = QSysInfo::currentCpuArchitecture();
+#if defined(Q_OS_MACOS) && !defined(Q_PROCESSOR_ARM)
+    if(rosettaDetect())
+    {
+        return "arm64";
+    }
+    else
+    {
+        return "x86_64";
+    }
+#endif
+    return qtArch;
+}
+
+QString runCheckerForArch(const SettingsObjectPtr& settingsObj){
+    QString checkerJar = FS::PathCombine(APPLICATION->getJarsPath(), "JavaCheck.jar");
+
+    QStringList args;
+
+    QProcessPtr process = new QProcess();
+    args.append({"-jar", checkerJar});
+    process->setArguments(args);
+    process->setProgram(settingsObj->get("JavaPath").toString());
+    process->setProcessChannelMode(QProcess::SeparateChannels);
+    process->setProcessEnvironment(CleanEnviroment());
+    qDebug() << "Running java checker: " + settingsObj->get("JavaPath").toString() + args.join(" ");;
+
+    process->start();
+    if(!process->waitForFinished(15000)){
+        // we've been waiting for 15 seconds! wtf! OR... it already finished. But HOW WOULD THAT HAPPEN?
+        process->kill(); // die. BUUURNNNN
+        // fallback to using polymc arch
+        return useQTForArch();
+    } else {
+        // yay we can use the java arch
+        QString stdout_javaChecker;
+        QString stderr_javaChecker;
+
+        // process stdout
+        QByteArray data = process->readAllStandardOutput();
+        QString added = QString::fromLocal8Bit(data);
+        added.remove('\r');
+        stdout_javaChecker += added;
+
+        // process stderr
+        data = process->readAllStandardError();
+        added = QString::fromLocal8Bit(data);
+        added.remove('\r');
+        stderr_javaChecker += added;
+
+        QMap<QString, QString> results;
+        QStringList lines = stdout_javaChecker.split("\n", QString::SkipEmptyParts);
+        for(QString line : lines)
+        {
+            line = line.trimmed();
+            // NOTE: workaround for GH-4125, where garbage is getting printed into stdout on bedrock linux
+            if (line.contains("/bedrock/strata")) {
+                continue;
+            }
+
+            auto parts = line.split('=', QString::SkipEmptyParts);
+            if(parts.size() != 2 || parts[0].isEmpty() || parts[1].isEmpty())
+            {
+                continue;
+            }
+            else
+            {
+                results.insert(parts[0], parts[1]);
+            }
+        }
+
+        if(!results.contains("os.arch") || !results.contains("java.version") || !results.contains("java.vendor"))
+        {
+            // wtf man why
+            // fallback to using polymc arch
+            return useQTForArch();
+        }
+
+        return results["os.arch"];
+    }
+}
+
+QString currentArch(const SettingsObjectPtr& settingsObj) {
+    auto realJavaArchitecture = settingsObj->get("JavaRealArchitecture").toString();
+    if(realJavaArchitecture == ""){
+        //BRO WHY NOW I HAVE TO USE A JAVA CHECKER >:(
+        qDebug() << "SysInfo: BRO I HAVE TO USE A JAVA CHECKER WHY IS JAVA ARCH BORKED";
+        settingsObj->set("JavaRealArchitecture", runCheckerForArch(settingsObj));
+        realJavaArchitecture = settingsObj->get("JavaRealArchitecture").toString();
+    }
+    //qDebug() << "SysInfo: realJavaArch = " << realJavaArchitecture;
+    if(realJavaArchitecture == "aarch64"){
+        return "arm64";
+    } else {
+        return realJavaArchitecture;
+    }
+}
+}
+

launcher/SysInfo.h

@@ -0,0 +1,13 @@
+#include <QString>
+#include "settings/SettingsObject.h"
+#ifdef Q_OS_MACOS
+#include <sys/sysctl.h>
+#endif
+
+namespace SysInfo {
+QString currentSystem();
+QString currentArch(const SettingsObjectPtr& settingsObj);
+QString runCheckerForArch(const SettingsObjectPtr& settingsObj);
+QString useQTForArch();
+}
+