Organized version information (#3781)

added new `GIT_MODIFIED` variable - used to determine whether the vcs tree was compiled or not at the time of building the app
added information about running in DEBUG mode which might be very helpful to determine whether one is running a DEBUG build, e.g. in the process of troubleshooting/determining crash causes

Co-authored-by: Rasmus Karlsson <rasmus.karlsson@pajlada.com>

src/common/Version.cpp

@@ -16,13 +16,15 @@ Version::Version()
     this->commitHash_ =
         QString(FROM_EXTERNAL_DEFINE(CHATTERINO_GIT_HASH)).remove('"');
 
-    // Date of build file generation (≈ date of build)
+#ifdef CHATTERINO_GIT_MODIFIED
+    this->isModified_ = true;
+#endif
+
 #ifdef CHATTERINO_CMAKE_GEN_DATE
     this->dateOfBuild_ =
         QString(FROM_EXTERNAL_DEFINE(CHATTERINO_CMAKE_GEN_DATE)).remove('"');
 #endif
 
-    // "Full" version string, as displayed in window title
     this->fullVersion_ = "Chatterino ";
     if (Modes::instance().isNightly)
     {
@@ -31,11 +33,18 @@ Version::Version()
 
     this->fullVersion_ += this->version_;
 
+#ifndef NDEBUG
+    this->fullVersion_ += " DEBUG";
+#endif
+
 #if defined(Q_OS_WIN) || defined(Q_OS_LINUX) || defined(Q_OS_MACOS)
     this->isSupportedOS_ = true;
 #else
     this->isSupportedOS_ = false;
 #endif
+
+    this->generateBuildString();
+    this->generateRunningString();
 }
 
 const Version &Version::instance()
@@ -59,6 +68,11 @@ const QString &Version::commitHash() const
     return this->commitHash_;
 }
 
+const bool &Version::isModified() const
+{
+    return this->isModified_;
+}
+
 const QString &Version::dateOfBuild() const
 {
     return this->dateOfBuild_;
@@ -74,4 +88,81 @@ bool Version::isFlatpak() const
     return QFileInfo::exists("/.flatpak-info");
 }
 
+QStringList Version::buildTags() const
+{
+    QStringList tags;
+
+    tags.append("Qt " QT_VERSION_STR);
+
+#ifdef USEWINSDK
+    tags.append("Windows SDK");
+#endif
+#ifdef _MSC_FULL_VER
+    tags.append("MSVC " + QString::number(_MSC_FULL_VER, 10));
+#endif
+
+    return tags;
+}
+
+const QString &Version::buildString() const
+{
+    return this->buildString_;
+}
+
+const QString &Version::runningString() const
+{
+    return this->runningString_;
+}
+
+void Version::generateBuildString()
+{
+    // e.g. Chatterino 2.3.5 or Chatterino Nightly 2.3.5
+    auto s = this->fullVersion();
+
+    // Add commit information
+    s +=
+        QString(
+            R"( (commit <a href="https://github.com/Chatterino/chatterino2/commit/%1">%1</a>)")
+            .arg(this->commitHash());
+    if (this->isModified())
+    {
+        s += " modified)";
+    }
+    else
+    {
+        s += ")";
+    }
+
+    s += " built";
+
+    // If the build is a nightly build (decided with modes atm), include build date information
+    if (Modes::instance().isNightly)
+    {
+        s += " on " + this->dateOfBuild();
+    }
+
+    // Append build tags (e.g. compiler, qt version etc)
+    s += " with " + this->buildTags().join(", ");
+
+    this->buildString_ = s;
+}
+
+void Version::generateRunningString()
+{
+    auto s = QString("Running on %1, kernel: %2")
+                 .arg(QSysInfo::prettyProductName(), QSysInfo::kernelVersion());
+
+    if (this->isFlatpak())
+    {
+        s += ", running from Flatpak";
+    }
+
+    if (!this->isSupportedOS())
+    {
+        s += " (unsupported OS)";
+    }
+
+    this->runningString_ = s;
+}
+
 }  // namespace chatterino