Display git revision in about dialog.

src/CMakeLists.txt

@@ -17,6 +17,17 @@ include_directories(${CMAKE_CURRENT_SOURCE_DIR} ${CMAKE_CURRENT_BINARY_DIR})
 
 configure_file(config-keepassx.h.cmake ${CMAKE_CURRENT_BINARY_DIR}/config-keepassx.h)
 
+include(GetGitRevisionDescription)
+get_git_head_revision(GIT_REFSPEC GIT_HEAD)
+git_describe(GIT_DESCRIBE --long)
+
+if (NOT GIT_HEAD OR NOT GIT_DESCRIBE)
+    set(GIT_HEAD "")
+    set(GIT_DESCRIBE "")
+endif()
+
+configure_file(version.h.cmake ${CMAKE_CURRENT_BINARY_DIR}/version.h @ONLY)
+
 set(keepassx_SOURCES
     autotype/AutoType.cpp
     autotype/AutoTypeAction.cpp

src/gui/AboutDialog.cpp

@@ -19,6 +19,7 @@
 #include "ui_AboutDialog.h"
 
 #include "config-keepassx.h"
+#include "version.h"
 #include "core/FilePath.h"
 
 AboutDialog::AboutDialog(QWidget* parent)
@@ -35,6 +36,19 @@ AboutDialog::AboutDialog(QWidget* parent)
 
     m_ui->iconLabel->setPixmap(filePath()->applicationIcon().pixmap(48));
 
+    QString commitHash;
+    if (!QString(GIT_HEAD).isEmpty()) {
+        commitHash = GIT_HEAD;
+    }
+    else if (!QString(DIST_HASH).contains("Format")) {
+        commitHash = DIST_HASH;
+    }
+
+    if (!commitHash.isEmpty()) {
+        QString labelGit = commitHash;
+        m_ui->label_git->setText(tr("Revision").append(": ").append(labelGit));
+    }
+
     setAttribute(Qt::WA_DeleteOnClose);
     connect(m_ui->buttonBox, SIGNAL(rejected()), SLOT(close()));
 }

src/gui/AboutDialog.ui

@@ -54,6 +54,16 @@
      </property>
     </widget>
    </item>
+   <item>
+    <widget class="QLabel" name="label_git">
+     <property name="text">
+      <string/>
+     </property>
+     <property name="textInteractionFlags">
+      <set>Qt::LinksAccessibleByMouse|Qt::TextSelectableByMouse</set>
+     </property>
+    </widget>
+   </item>
    <item>
     <widget class="QDialogButtonBox" name="buttonBox">
      <property name="standardButtons">

src/version.h.cmake

@@ -0,0 +1,5 @@
+#define GIT_HEAD "@GIT_HEAD@"
+#define GIT_DESCRIBE "@GIT_DESCRIBE@"
+
+#define DIST_HASH "$Format:%H$"
+#define DIST_DATE "$Format:%at$"