AnwendungsAbbild
Was ist ein AppImage
Einmaliges Paket und überall einsetzbar. Erreiche Benutzer auf allen wichtigen Linux Desktop Distributionen.
AppImage ist ein "universelles Binärpaket", das eine Anwendung an jede beliebige Linux Distribution verteilen soll. Mehr dazu auf der Appimage Homepage und Wikipedia.
Für andere Installationsarten siehe Download.
FreeCAD AppImages
Stabile Version
Die aktuelle stabile Version ist FreeCAD_0.20.2.29603 (SHA256)
Entwicklungs Version
Aktuelle Entwicklerversion ist FreeCAD_28810 (SHA256)
Wichtige Hinweise:.
- Die Entwicklung erfolgt täglich und schnell, die Verknüpfung mit dem aktuellsten AppImage ist ein bewegliches Ziel.
- Der obige Entwicklungslink sollte aktuell sein, da er über ein Skript aktualisiert wird.
- Viele Benutzer im Forum nutzen die Entwicklungsversion.
- Es kann auf dem gleichen System parallel zu einer anderen Version von FreeCAD ausgeführt werden.
- Benutzer verwenden die dev Version, um die neuesten Funktionen und Bugfixes zu nutzen (da FreeCAD einen langen Veröffentlichungszyklus hat). Sie nutzen es auch, um Fehler zu testen und zu finden, um die Entwicklung und Verbesserung von FreeCAD voranzutreiben.
Obligatory Word of Caution
For the most part the development version is stable but of course it's important to add the obligatory statement to use it at your own risk. Though most people that utilize backups and 'save often' do quite well.
Automatic updating
AppImage has a smart and economical way of updating. It calculates the difference between the new AppImage and the old one, and will only download the changes between their versions. In theory the user ends up downloading around 15% each time instead of an entirely new AppImage.
Automatic updating is done via several optional methods. Currently there are 4 methods, 2 through the graphical interface (GUI), and 2 through the command-line/terminal interface (CLI).
GUI method 1 (official)
This is the official AppImageUpdate GUI application.
- Download AppImageUpdate-x86_64.AppImage.
- Make it executable by right clicking on the file, going in to properties and "Run as an executable".
- Double click on the AppImage icon, a dialog box will appear and you'll be prompted to specify what AppImage you want to update.
- Specify the path to your existing AppImage.
- Once the AppImage is updated, press the button Run updated AppImage.
GUI method 2 (unofficial)
This is a sleeker 3rd-party unofficial version of AppImageUpdate named: AppImageUpdater. It is still in development (at the time of this wiki edit) but nevertheless, quite nice to use.
- Download AppImageUpdater-*-x86_64.AppImage
- Make it executable:
chmod +x AppImageUpdater*-x86_64.AppImage
- Run it:
source AppImageUpdater*-x86_64.AppImage
- Find your current FreeCAD AppImage and drag-drop it on to the AppImageUpdater
Result: Follow the AppImageUpdater prompts
CLI method 1 (official)
Run the following instructions in your terminal
wget https://github.com/AppImage/AppImageUpdate/releases/download/continuous/appimageupdatetool-x86_64.AppImage
chmod +x ./appimageupdatetool-x86_64.AppImage
./appimageupdatetool.AppImage path/to/old/FreeCAD.AppImage
chmod +x path/to/updated/FreeCAD.AppImage
./path/to/updated/FreeCAD.AppImage
Notes:
- The file names will be unique because of the version info is embedded in them. The above instructions are simplified for convenience.
- Run
./appimageupdatetool-x86_64.AppImage --help
to learn about functionality like-r
and--self-update
. - There is also an i386 version; see the AppImageUpdate release page.
Todo: share a script that can be added as an alias or cron job.
CLI method 2 (unofficial)
Similarly to the Graphical methods having an official and unofficial approaches to downloading AppImages, the same applies to the command line. This is a sleeker 3rd-party command line option to download AppImages
- Download appimageupdater-*-x86_64.AppImage
- Make it executable:
chmod +x appimageupdater*-x86_64.AppImage
- Run it:
source appimageupdater*-x86_64.AppImage /path/to/old/FreeCAD-AppImage.AppImage
Result: Updates specified AppImage file if update exists
Unpacking AppImages
Note: this section is intended for developers.
A very convenient aspect of FreeCAD is that a majority of it is built in Python, which doesn't need to be manually compiled like C++. Essentially, a Python file can be modified, and upon restarting FreeCAD those changes will be integrated into the application. A developer can quickly work on the latest FreeCAD release using this technique and an AppImage. Moreover, using an AppImage doesn't modify your system's environment in any way, that is, nothing is installed and no environmental variables are modified.
Modifying AppImages
An AppImage embeds a file system in it with everything that is required to run the application. In order to modify it, the file system needs to be extracted.
FreeCAD.AppImage --appimage-extract
cd squashfs-root/
Now open the required Python source files in your preferred code editor, modify them, and save them. Then run the application.
./AppRun
Repackaging AppImages
If you've modified the code, and now want to re-package the AppImage with your latest changes, use the appimagetool-x86_64 tool on the extracted file system.
cd ..
wget "https://github.com/AppImage/AppImageKit/releases/download/continuous/appimagetool-x86_64.AppImage"
chmod +x appimagetool-x86_64.AppImage
./appimagetool-x86_64.AppImage squashfs-root
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