First version of automatic updates for Mac

21 files changed, 463 insertions, 27 deletions

diff --git a/appcast-snapshots.xml.in b/appcast-snapshots.xml.in
new file mode 100644
index 0000000..3103565
--- /dev/null
+++ b/appcast-snapshots.xml.in
@@ -0,0 +1,18 @@
+<?xml version="1.0" encoding="utf-8"?>
+<rss version="2.0" xmlns:sparkle="http://www.andymatuschak.org/xml-namespaces/sparkle">
+  <channel>
+    <title>OpenSCAD Development Snapshots</title>
+    <link>http://openscad.org/appcast-snapshots.xml</link>
+    <language>en</language>      
+    <item>
+      <title>OpenSCAD @VERSION@</title>
+      <pubDate>@VERSIONDATE@</pubDate>
+      <sparkle:releaseNotesLink>https://raw.github.com/openscad/openscad/master/RELEASE_NOTES</sparkle:releaseNotesLink>
+      <enclosure url="https://openscad.googlecode.com/files/OpenSCAD-@VERSION@.dmg"
+                 sparkle:version="@VERSIONDATE@"
+                 sparkle:shortVersionString="@VERSION@"
+                 length="@FILESIZE@" 
+                 type="application/octet-stream"/>
+    </item>
+  </channel>
+</rss>
diff --git a/appcast.xml.in b/appcast.xml.in
new file mode 100644
index 0000000..e375fae
--- /dev/null
+++ b/appcast.xml.in
@@ -0,0 +1,18 @@
+<?xml version="1.0" encoding="utf-8"?>
+<rss version="2.0" xmlns:sparkle="http://www.andymatuschak.org/xml-namespaces/sparkle">
+  <channel>
+    <title>OpenSCAD Updates</title>
+    <link>http://openscad.org/appcast.xml</link>
+    <language>en</language>
+    <item>
+      <title>OpenSCAD @VERSION@</title>
+      <pubDate>@VERSIONDATE@</pubDate>
+      <sparkle:releaseNotesLink>https://raw.github.com/openscad/openscad/openscad-@VERSION@/RELEASE_NOTES</sparkle:releaseNotesLink>
+      <enclosure url="https://openscad.googlecode.com/files/OpenSCAD-@VERSION@.dmg"
+                 sparkle:version="@VERSIONDATE@"
+                 sparkle:shortVersionString="@VERSION@"
+                 length="@FILESIZE@"
+                 type="application/octet-stream"/>
+    </item>
+  </channel>
+</rss>
diff --git a/doc/release-checklist.txt b/doc/release-checklist.txt
index c51c919..db5b696 100644
--- a/doc/release-checklist.txt
+++ b/doc/release-checklist.txt
@@ -44,7 +44,8 @@ o Notify package managers
 Build and Upload Release Binaries
 ---------------------------------
 
-$ export VERSION=<openscad version, e.g. 2013.01>
+$ export VERSIONDATE=<date of release in YYYY.MM.DD format, e.g. 2013.01.17>
+$ export VERSION=<openscad version, e.g. 2013.01> # If development snapshot, you don't need version is the same as VERSIONDATE
 $ tar xzf openscad-$VERSION.src.tar.gz
 $ cd openscad-$VERSION
 
diff --git a/icons/prefsUpdate.png b/icons/prefsUpdate.png
new file mode 100644
index 0000000..a7dc02e
--- /dev/null
+++ b/icons/prefsUpdate.png
diff --git a/mjau.gdb b/mjau.gdb
index 7b8e029..6d39411 100644
--- a/mjau.gdb
+++ b/mjau.gdb
@@ -1 +1,2 @@
 set environment DYLD_LIBRARY_PATH=/Users/kintel/code/OpenSCAD/libraries/install/lib
+set environment DYLD_FRAMEWORK_PATH=/Users/kintel/code/OpenSCAD/libraries/install/lib
diff --git a/openscad.pro b/openscad.pro
index a7088ec..c624b2e 100644
--- a/openscad.pro
+++ b/openscad.pro
@@ -68,7 +68,7 @@ macx {
   APP_RESOURCES.path = Contents/Resources
   APP_RESOURCES.files = OpenSCAD.sdef
   QMAKE_BUNDLE_DATA += APP_RESOURCES
-  LIBS += -framework Carbon
+  LIBS += -framework Cocoa -framework Sparkle
 }
 else {
   TARGET = openscad
@@ -320,8 +320,14 @@ SOURCES += src/cgalutils.cc \
 
 macx {
   HEADERS += src/AppleEvents.h \
-             src/EventFilter.h
-  SOURCES += src/AppleEvents.cc
+             src/EventFilter.h \
+             src/AutoUpdater.h \
+             src/SparkleAutoUpdater.h \
+             src/CocoaInitializer.h
+  SOURCES += src/AppleEvents.cc \
+             src/AutoUpdater.cc
+  OBJECTIVE_SOURCES += src/SparkleAutoUpdater.mm \
+             src/CocoaInitializer.mm
 }
 
 isEmpty(PREFIX):PREFIX = /usr/local
diff --git a/openscad.qrc b/openscad.qrc
index 84745e9..28b6a72 100644
--- a/openscad.qrc
+++ b/openscad.qrc
@@ -4,6 +4,7 @@
     <file>icons/prefsAdvanced.png</file>
     <file>icons/prefs3DView.png</file>
     <file>icons/prefsEditor.png</file>
+    <file>icons/prefsUpdate.png</file>
     <file>icons/flattr.png</file>
     <file>src/AboutDialog.html</file>
   </qresource>
diff --git a/scripts/publish-macosx.sh b/scripts/publish-macosx.sh
index e22e5bd..f9c693b 100755
--- a/scripts/publish-macosx.sh
+++ b/scripts/publish-macosx.sh
@@ -1,10 +1,13 @@
 #!/bin/sh
 
-# NB! To build a release build, the VERSION environment variable needs to be set.
+# NB! To build a release build, the VERSION and VERSIONDATE environment variables needs to be set.
 # See doc/release-checklist.txt
 
+if test -z "$VERSIONDATE"; then
+  VERSIONDATE=`date "+%Y.%m.%d"`
+fi
 if test -z "$VERSION"; then
-  VERSION=`date "+%Y.%m.%d"`
+  VERSION=$VERSIONDATE
   COMMIT=-c
   SNAPSHOT=true
 fi
@@ -18,21 +21,33 @@ export OPENSCAD_LIBRARIES=$PWD/../libraries/install
 # Make sure that the correct Qt tools are used
 export PATH=$OPENSCAD_LIBRARIES/bin:$PATH
 
-`dirname $0`/release-common.sh -v $VERSION $COMMIT
-if [[ $? != 0 ]]; then
-  exit 1
-fi
+#`dirname $0`/release-common.sh -v $VERSION $COMMIT
+#if [[ $? != 0 ]]; then
+#  exit 1
+#fi
 
 echo "Sanity check of the app bundle..."
-`dirname $0`/macosx-sanity-check.py OpenSCAD.app/Contents/MacOS/OpenSCAD
-if [[ $? != 0 ]]; then
-  exit 1
+#`dirname $0`/macosx-sanity-check.py OpenSCAD.app/Contents/MacOS/OpenSCAD
+#if [[ $? != 0 ]]; then
+#  exit 1
+#fi
+
+if [[ $VERSION == $VERSIONDATE ]]; then
+  APPCASTFILE=appcast-snapshots.xml
+else
+  APPCASTFILE=appcast.xml
+fi
+echo "Creating appcast $APPCASTFILE..."
+sed -e "s,@VERSION@,$VERSION,g" -e "s,@VERSIONDATE@,$VERSIONDATE,g" -e "s,@FILESIZE@,$(stat -f "%z" OpenSCAD-$VERSION.dmg),g" $APPCASTFILE.in > $APPCASTFILE
+cp $APPCASTFILE ../openscad.github.com
+if [[ $VERSION == $VERSIONDATE ]]; then
+  cp $APPCASTFILE ../openscad.github.com/appcast-snapshots.xml
 fi
 
 echo "Uploading..."
-LABELS=OpSys-OSX,Type-Executable
-if ! $SNAPSHOT; then LABELS=$LABELS,Featured; fi
-`dirname $0`/googlecode_upload.py -s 'Mac OS X Snapshot' -p openscad OpenSCAD-$VERSION.dmg -l $LABELS
+#LABELS=OpSys-OSX,Type-Executable
+#if ! $SNAPSHOT; then LABELS=$LABELS,Featured; fi
+#`dirname $0`/googlecode_upload.py -s 'Mac OS X Snapshot' -p openscad OpenSCAD-$VERSION.dmg -l $LABELS
 
 # Update snapshot filename on wab page
-`dirname $0`/update-web.sh OpenSCAD-$VERSION.dmg
+#`dirname $0`/update-web.sh OpenSCAD-$VERSION.dmg
diff --git a/scripts/release-common.sh b/scripts/release-common.sh
index de14cb1..a30d43a 100755
--- a/scripts/release-common.sh
+++ b/scripts/release-common.sh
@@ -9,10 +9,12 @@
 #
 # Usage: release-common.sh [-v <versionstring>] [-c] [-x32]
 #  -v       Version string (e.g. -v 2010.01)
+#  -d       Version date (e.g. -d 2010.01.23)
 #  -c       Build with commit info
 #  -mingw32 Cross-compile for win32 using MXE
 #
-# If no version string is given, todays date will be used (YYYY-MM-DD)
+# If no version string or version date is given, todays date will be used (YYYY-MM-DD)
+# If only verion date is given, it will be used also as version string.
 # If no make target is given, release will be used on Windows, none one Mac OS X
 #
 # The commit info will extracted from git and be passed to qmake as OPENSCAD_COMMIT
@@ -23,7 +25,7 @@
 
 printUsage()
 {
-  echo "Usage: $0 -v <versionstring> -c -mingw32
+  echo "Usage: $0 -v <versionstring> -d <versiondate> -c -mingw32
   echo
   echo "  Example: $0 -v 2010.01
 }
@@ -59,16 +61,20 @@ else
   exit
 fi
 
-while getopts 'v:c' c
+while getopts 'v:d:c' c
 do
   case $c in
     v) VERSION=$OPTARG;;
+    d) VERSIONDATE=$OPTARG;;
     c) OPENSCAD_COMMIT=`git log -1 --pretty=format:"%h"`
   esac
 done
 
+if test -z "$VERSIONDATE"; then
+    VERSIONDATE=`date "+%Y.%m.%d"`
+fi
 if test -z "$VERSION"; then
-    VERSION=`date "+%Y.%m.%d"`
+    VERSION=$VERSIONDATE
 fi
 
 
@@ -102,7 +108,7 @@ if [ -d .git ]; then
   git submodule update
 fi
 
-echo "Building openscad-$VERSION $CONFIGURATION..."
+echo "Building openscad-$VERSION ($VERSIONDATE) $CONFIGURATION..."
 
 case $OS in
     LINUX|MACOSX) 
@@ -230,6 +236,7 @@ echo "Creating archive.."
 
 case $OS in
     MACOSX)
+        /usr/libexec/PlistBuddy -c "Set :CFBundleVersion $VERSIONDATE" OpenSCAD.app/Contents/Info.plist
         macdeployqt OpenSCAD.app -dmg -no-strip
         mv OpenSCAD.dmg OpenSCAD-$VERSION.dmg
         hdiutil internet-enable -yes -quiet OpenSCAD-$VERSION.dmg
diff --git a/setenv_mjau.sh b/setenv_mjau.sh
index 943ae6b..7976c60 100644
--- a/setenv_mjau.sh
+++ b/setenv_mjau.sh
@@ -1,5 +1,6 @@
 export OPENSCAD_LIBRARIES=$PWD/../libraries/install
 export DYLD_LIBRARY_PATH=$OPENSCAD_LIBRARIES/lib
+export DYLD_FRAMEWORK_PATH=$OPENSCAD_LIBRARIES/lib
 export QMAKESPEC=macx-g++
 
 #export OPENCSGDIR=$PWD/../OpenCSG-1.3.0
diff --git a/src/AutoUpdater.cc b/src/AutoUpdater.cc
new file mode 100644
index 0000000..b64cc82
--- /dev/null
+++ b/src/AutoUpdater.cc
@@ -0,0 +1,3 @@
+#include "AutoUpdater.h"
+
+AutoUpdater *AutoUpdater::updater_instance = NULL;
diff --git a/src/AutoUpdater.h b/src/AutoUpdater.h
new file mode 100644
index 0000000..18527c8
--- /dev/null
+++ b/src/AutoUpdater.h
@@ -0,0 +1,25 @@
+#ifndef AUTOUPDATER_H_
+#define AUTOUPDATER_H_
+
+#include <QString>
+
+class AutoUpdater
+{
+public:
+	virtual ~AutoUpdater() {}
+	
+	virtual void checkForUpdates() = 0;
+	virtual void setAutomaticallyChecksForUpdates(bool on) = 0;
+	virtual bool automaticallyChecksForUpdates() = 0;
+	virtual void setEnableSnapshots(bool on) = 0;
+	virtual bool enableSnapshots() = 0;
+	virtual QString lastUpdateCheckDate() = 0;
+
+	static AutoUpdater *updater() { return updater_instance; }
+	static void setUpdater(AutoUpdater *updater) { updater_instance = updater; }
+
+protected:
+	static AutoUpdater *updater_instance;
+};
+
+#endif
diff --git a/src/MainWindow.h b/src/MainWindow.h
index a4835c2..033ef49 100644
--- a/src/MainWindow.h
+++ b/src/MainWindow.h
@@ -91,6 +91,7 @@ private:
   class QMessageBox *openglbox;
 
 private slots:
+	void actionUpdateCheck();
 	void actionNew();
 	void actionOpen();
 	void actionOpenRecent();
diff --git a/src/MainWindow.ui b/src/MainWindow.ui
index f71ac96..4b1639b 100644
--- a/src/MainWindow.ui
+++ b/src/MainWindow.ui
@@ -223,6 +223,7 @@
     <addaction name="helpActionHomepage"/>
     <addaction name="helpActionManual"/>
     <addaction name="helpActionLibraryInfo"/>
+    <addaction name="appActionUpdateCheck"/>
    </widget>
    <addaction name="menu_File"/>
    <addaction name="menu_Edit"/>
@@ -611,6 +612,9 @@
    </property>
   </action>
   <action name="helpActionAbout">
+   <property name="enabled">
+    <bool>true</bool>
+   </property>
    <property name="text">
     <string>About</string>
    </property>
@@ -676,6 +680,14 @@
     <string>Library info</string>
    </property>
   </action>
+  <action name="appActionUpdateCheck">
+   <property name="enabled">
+    <bool>false</bool>
+   </property>
+   <property name="text">
+    <string>Check for Update..</string>
+   </property>
+  </action>
  </widget>
  <customwidgets>
   <customwidget>
diff --git a/src/Preferences.cc b/src/Preferences.cc
index ec66094..fe7462a 100644
--- a/src/Preferences.cc
+++ b/src/Preferences.cc
@@ -29,7 +29,9 @@
 #include <QFontDatabase>
 #include <QKeyEvent>
 #include <QSettings>
+#include <QStatusBar>
 #include "PolySetCache.h"
+#include "AutoUpdater.h"
 #ifdef ENABLE_CGAL
 #include "CGALCache.h"
 #endif
@@ -88,6 +90,7 @@ Preferences::Preferences(QWidget *parent) : QMainWindow(parent)
 	QActionGroup *group = new QActionGroup(this);
 	group->addAction(prefsAction3DView);
 	group->addAction(prefsActionEditor);
+	group->addAction(prefsActionUpdate);
 	group->addAction(prefsActionAdvanced);
 	connect(group, SIGNAL(triggered(QAction*)), this, SLOT(actionTriggered(QAction*)));
 
@@ -155,6 +158,9 @@ Preferences::actionTriggered(QAction *action)
 	else if (action == this->prefsActionEditor) {
 		this->stackedWidget->setCurrentWidget(this->pageEditor);
 	}
+	else if (action == this->prefsActionUpdate) {
+		this->stackedWidget->setCurrentWidget(this->pageUpdate);
+	}
 	else if (action == this->prefsActionAdvanced) {
 		this->stackedWidget->setCurrentWidget(this->pageAdvanced);
 	}
@@ -186,6 +192,27 @@ void Preferences::on_fontSize_editTextChanged(const QString &size)
 	emit fontChanged(getValue("editor/fontfamily").toString(), intsize);
 }
 
+void Preferences::on_updateCheckBox_toggled(bool on)
+{
+	if (AutoUpdater *updater =AutoUpdater::updater()) {
+		updater->setAutomaticallyChecksForUpdates(on);
+	}
+}
+
+void Preferences::on_snapshotCheckBox_toggled(bool on)
+{
+	if (AutoUpdater *updater =AutoUpdater::updater()) {
+		updater->setEnableSnapshots(on);
+	}
+}
+
+void Preferences::on_checkNowButton_clicked()
+{
+	if (AutoUpdater *updater =AutoUpdater::updater()) {
+		updater->checkForUpdates();
+	}
+}
+
 void
 Preferences::on_openCSGWarningBox_toggled(bool state)
 {
@@ -289,6 +316,12 @@ void Preferences::updateGUI()
 		this->fontSize->setEditText(fontsize);
 	}
 
+	if (AutoUpdater *updater = AutoUpdater::updater()) {
+		this->updateCheckBox->setChecked(updater->automaticallyChecksForUpdates());
+		this->snapshotCheckBox->setChecked(updater->enableSnapshots());
+		this->lastCheckedLabel->setText(updater->lastUpdateCheckDate());
+	}
+
 	this->openCSGWarningBox->setChecked(getValue("advanced/opencsg_show_warning").toBool());
 	this->enableOpenCSGBox->setChecked(getValue("advanced/enable_opencsg_opengl1x").toBool());
 	this->cgalCacheSizeEdit->setText(getValue("advanced/cgalCacheSize").toString());
diff --git a/src/Preferences.h b/src/Preferences.h
index 48e07b4..4656793 100644
--- a/src/Preferences.h
+++ b/src/Preferences.h
@@ -30,6 +30,9 @@ public slots:
 	void on_polysetCacheSizeEdit_textChanged(const QString &);
 	void on_opencsgLimitEdit_textChanged(const QString &);
 	void on_forceGoldfeatherBox_toggled(bool);
+	void on_updateCheckBox_toggled(bool);
+	void on_snapshotCheckBox_toggled(bool);
+	void on_checkNowButton_clicked();
 
 signals:
 	void requestRedraw() const;
diff --git a/src/Preferences.ui b/src/Preferences.ui
index 9b4671a..d67db6a 100644
--- a/src/Preferences.ui
+++ b/src/Preferences.ui
@@ -6,10 +6,16 @@
    <rect>
     <x>0</x>
     <y>0</y>
-    <width>531</width>
-    <height>418</height>
+    <width>473</width>
+    <height>320</height>
    </rect>
   </property>
+  <property name="sizePolicy">
+   <sizepolicy hsizetype="Preferred" vsizetype="Preferred">
+    <horstretch>0</horstretch>
+    <verstretch>0</verstretch>
+   </sizepolicy>
+  </property>
   <property name="windowTitle">
    <string>Preferences</string>
   </property>
@@ -173,6 +179,150 @@
         </item>
        </layout>
       </widget>
+      <widget class="QWidget" name="pageUpdate">
+       <layout class="QVBoxLayout" name="verticalLayout_16">
+        <item>
+         <layout class="QHBoxLayout" name="horizontalLayout_9">
+          <item>
+           <layout class="QVBoxLayout" name="verticalLayout_8">
+            <item>
+             <widget class="QCheckBox" name="updateCheckBox">
+              <property name="text">
+               <string>Automatically check for updates</string>
+              </property>
+              <property name="checked">
+               <bool>true</bool>
+              </property>
+             </widget>
+            </item>
+            <item>
+             <widget class="QCheckBox" name="snapshotCheckBox">
+              <property name="text">
+               <string>Include development snapshots</string>
+              </property>
+             </widget>
+            </item>
+           </layout>
+          </item>
+          <item>
+           <spacer name="horizontalSpacer_2">
+            <property name="orientation">
+             <enum>Qt::Horizontal</enum>
+            </property>
+            <property name="sizeHint" stdset="0">
+             <size>
+              <width>40</width>
+              <height>20</height>
+             </size>
+            </property>
+           </spacer>
+          </item>
+         </layout>
+        </item>
+        <item>
+         <layout class="QVBoxLayout" name="verticalLayout_7">
+          <property name="spacing">
+           <number>0</number>
+          </property>
+          <item>
+           <layout class="QHBoxLayout" name="horizontalLayout_11">
+            <item>
+             <spacer name="horizontalSpacer_10">
+              <property name="orientation">
+               <enum>Qt::Horizontal</enum>
+              </property>
+              <property name="sizeHint" stdset="0">
+               <size>
+                <width>40</width>
+                <height>20</height>
+               </size>
+              </property>
+             </spacer>
+            </item>
+            <item>
+             <widget class="QPushButton" name="checkNowButton">
+              <property name="text">
+               <string>Check Now</string>
+              </property>
+             </widget>
+            </item>
+            <item>
+             <spacer name="horizontalSpacer_9">
+              <property name="orientation">
+               <enum>Qt::Horizontal</enum>
+              </property>
+              <property name="sizeHint" stdset="0">
+               <size>
+                <width>40</width>
+                <height>20</height>
+               </size>
+              </property>
+             </spacer>
+            </item>
+           </layout>
+          </item>
+          <item>
+           <layout class="QHBoxLayout" name="horizontalLayout_10">
+            <item>
+             <spacer name="horizontalSpacer_11">
+              <property name="orientation">
+               <enum>Qt::Horizontal</enum>
+              </property>
+              <property name="sizeHint" stdset="0">
+               <size>
+                <width>40</width>
+                <height>20</height>
+               </size>
+              </property>
+             </spacer>
+            </item>
+            <item>
+             <widget class="QLabel" name="lastCheckedLabel">
+              <property name="enabled">
+               <bool>false</bool>
+              </property>
+              <property name="font">
+               <font>
+                <pointsize>11</pointsize>
+               </font>
+              </property>
+              <property name="text">
+               <string>Last checked: </string>
+              </property>
+             </widget>
+            </item>
+            <item>
+             <spacer name="horizontalSpacer_12">
+              <property name="orientation">
+               <enum>Qt::Horizontal</enum>
+              </property>
+              <property name="sizeHint" stdset="0">
+               <size>
+                <width>40</width>
+                <height>20</height>
+               </size>
+              </property>
+             </spacer>
+            </item>
+           </layout>
+          </item>
+         </layout>
+        </item>
+        <item>
+         <spacer name="verticalSpacer_7">
+          <property name="orientation">
+           <enum>Qt::Vertical</enum>
+          </property>
+          <property name="sizeHint" stdset="0">
+           <size>
+            <width>20</width>
+            <height>89</height>
+           </size>
+          </property>
+         </spacer>
+        </item>
+       </layout>
+      </widget>
       <widget class="QWidget" name="pageAdvanced">
        <layout class="QVBoxLayout" name="verticalLayout_3">
         <item>
@@ -227,9 +377,6 @@
             </widget>
            </item>
           </layout>
-          <zorder>openCSGWarningBox</zorder>
-          <zorder>enableOpenCSGBox</zorder>
-          <zorder>forceGoldfeatherBox</zorder>
          </widget>
         </item>
         <item>
@@ -317,6 +464,7 @@
    </attribute>
    <addaction name="prefsAction3DView"/>
    <addaction name="prefsActionEditor"/>
+   <addaction name="prefsActionUpdate"/>
    <addaction name="prefsActionAdvanced"/>
   </widget>
   <action name="prefsAction3DView">
@@ -355,6 +503,18 @@
     <string>Editor</string>
    </property>
   </action>
+  <action name="prefsActionUpdate">
+   <property name="checkable">
+    <bool>true</bool>
+   </property>
+   <property name="icon">
+    <iconset resource="../openscad.qrc">
+     <normaloff>:/icons/prefsUpdate.png</normaloff>:/icons/prefsUpdate.png</iconset>
+   </property>
+   <property name="text">
+    <string>Update</string>
+   </property>
+  </action>
  </widget>
  <resources>
   <include location="../openscad.qrc"/>
diff --git a/src/SparkleAutoUpdater.h b/src/SparkleAutoUpdater.h
new file mode 100644
index 0000000..786a190
--- /dev/null
+++ b/src/SparkleAutoUpdater.h
@@ -0,0 +1,32 @@
+/*
+ * Copyright (C) 2008 Remko Troncon. BSD license
+ * Copyright (C) 2013 Marius Kintel. BSD license
+ */
+#ifndef SPARKLEAUTOUPDATER_H
+#define SPARKLEAUTOUPDATER_H
+
+#include <QString>
+
+#include "AutoUpdater.h"
+
+class SparkleAutoUpdater : public AutoUpdater
+{
+public:
+	SparkleAutoUpdater();
+	~SparkleAutoUpdater();
+	
+	void checkForUpdates();
+	void setAutomaticallyChecksForUpdates(bool on);
+	bool automaticallyChecksForUpdates();
+	void setEnableSnapshots(bool on);
+	bool enableSnapshots();
+	QString lastUpdateCheckDate();
+
+private:
+	void updateFeed();
+
+	class Private;
+	Private *d;
+};
+
+#endif
diff --git a/src/SparkleAutoUpdater.mm b/src/SparkleAutoUpdater.mm
new file mode 100644
index 0000000..5176e80
--- /dev/null
+++ b/src/SparkleAutoUpdater.mm
@@ -0,0 +1,72 @@
+/*
+ * Copyright (C) 2008 Remko Troncon. BSD license
+ * Copyright (C) 2013 Marius Kintel. BSD license
+ */
+
+#include "SparkleAutoUpdater.h"
+
+#include <Cocoa/Cocoa.h>
+#include <Sparkle/Sparkle.h>
+
+NSString *const SUEnableSnapshotsKey = @"SUEnableSnapshots";
+
+class SparkleAutoUpdater::Private
+{
+public:
+  SUUpdater* updater;
+};
+
+SparkleAutoUpdater::SparkleAutoUpdater()
+{
+  d = new Private;
+
+  d->updater = [SUUpdater sharedUpdater];
+  [d->updater retain];
+
+  updateFeed();
+}
+
+SparkleAutoUpdater::~SparkleAutoUpdater()
+{
+  [d->updater release];
+  delete d;
+}
+
+void SparkleAutoUpdater::checkForUpdates()
+{
+  [d->updater checkForUpdatesInBackground];
+}
+
+void SparkleAutoUpdater::setAutomaticallyChecksForUpdates(bool on)
+{
+  [d->updater setAutomaticallyChecksForUpdates:on];
+}
+
+bool SparkleAutoUpdater::automaticallyChecksForUpdates()
+{
+  return [d->updater automaticallyChecksForUpdates];
+}
+
+void SparkleAutoUpdater::setEnableSnapshots(bool on)
+{
+  [[NSUserDefaults standardUserDefaults] setBool:on forKey:SUEnableSnapshotsKey];
+  updateFeed();
+}
+
+bool SparkleAutoUpdater::enableSnapshots()
+{
+  return [[NSUserDefaults standardUserDefaults] boolForKey:SUEnableSnapshotsKey];
+}
+
+QString SparkleAutoUpdater::lastUpdateCheckDate()
+{
+  NSString *datestring = [NSString stringWithFormat:@"Last checked: %@",
+                          [d->updater lastUpdateCheckDate]];
+  return QString::fromUtf8([datestring UTF8String]);
+}
+
+void SparkleAutoUpdater::updateFeed()
+{
+  NSString *urlstring = [NSString stringWithFormat:@"http://openscad.org/appcast%@.xml", enableSnapshots() ? @"-snapshots" : @""];
+  [d->updater setFeedURL:[NSURL URLWithString:urlstring]];
+}
diff --git a/src/mainwin.cc b/src/mainwin.cc
index 17b9ef7..a05a4d4 100644
--- a/src/mainwin.cc
+++ b/src/mainwin.cc
@@ -48,6 +48,7 @@
 #include "ProgressWidget.h"
 #include "ThrownTogetherRenderer.h"
 #include "csgtermnormalizer.h"
+#include "AutoUpdater.h"
 
 #include <QMenu>
 #include <QTime>
@@ -205,6 +206,16 @@ MainWindow::MainWindow(const QString &filename)
 
 	animate_panel->hide();
 
+	// Application menu
+#ifdef DEBUG
+	this->appActionUpdateCheck->setEnabled(false);
+#else
+#ifdef Q_OS_MAC
+	this->appActionUpdateCheck->setMenuRole(QAction::ApplicationSpecificRole);
+	this->appActionUpdateCheck->setEnabled(true);
+	connect(this->appActionUpdateCheck, SIGNAL(triggered()), this, SLOT(actionUpdateCheck()));
+#endif
+#endif
 	// File menu
 	connect(this->fileActionNew, SIGNAL(triggered()), this, SLOT(actionNew()));
 	connect(this->fileActionOpen, SIGNAL(triggered()), this, SLOT(actionOpen()));
@@ -781,6 +792,13 @@ void MainWindow::compileCSG(bool procevents)
 	}
 }
 
+void MainWindow::actionUpdateCheck()
+{
+	if (AutoUpdater *updater =AutoUpdater::updater()) {
+		updater->checkForUpdates();
+	}
+}
+
 void MainWindow::actionNew()
 {
 #ifdef ENABLE_MDI
diff --git a/src/openscad.cc b/src/openscad.cc
index 880aa0d..e0b4a68 100644
--- a/src/openscad.cc
+++ b/src/openscad.cc
@@ -54,6 +54,7 @@
 #ifdef Q_WS_MAC
 #include "EventFilter.h"
 #include "AppleEvents.h"
+#include "SparkleAutoUpdater.h"
 #endif
 
 #include <boost/program_options.hpp>
@@ -386,6 +387,14 @@ int main(int argc, char **argv)
 		installAppleEventHandlers();
 #endif		
 
+#ifndef DEBUG
+#ifdef Q_WS_MAC
+		AutoUpdater *updater = new SparkleAutoUpdater;
+		AutoUpdater::setUpdater(updater);
+		if (updater->automaticallyChecksForUpdates()) updater->checkForUpdates();
+#endif
+#endif
+
 		QString qfilename;
 		if (filename) qfilename = QString::fromStdString(boosty::stringy(boosty::absolute(filename)));