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Updated appimage post to include example desktop file and some tips

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Brandon Rozek 2021-06-03 12:18:08 -04:00
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content/blog/appimage.md
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@ -33,9 +33,24 @@ gqrx.AppDir/
The `AppRun` executable comes from the [AppImage Releases Page](https://github.com/AppImage/AppImageKit/releases). While you're there, you should also download `appimagetool` as we'll be using that soon.
The `.desktop` file needs to be a valid [Linux Desktop Icon](https://brandonrozek.com/blog/linuxdesktopicons/). Make sure to define the [`Categories`](https://specifications.freedesktop.org/menu-spec/latest/apa.html) field, the `appimagetool` complained when I didn't.
The `.desktop` file needs to be a valid [Linux Desktop Icon](https://brandonrozek.com/blog/linuxdesktopicons/). Some things to take note about the desktop file:
Copy over `gqrx` over to the AppDir:
- The icon is assumed to be a `.png`
- The executable is assumed to be located in `/usr/bin/`
- Make sure to define the [`Categories`](https://specifications.freedesktop.org/menu-spec/latest/apa.html) field, the `appimagetool` complained when I didn't.
Here is an example desktop file.
```
[Desktop Entry]
Type=Application
Name=Gqrx
Icon=icon
Exec=gqrx
Categories=Development;
```
Copy over `gqrx` executable over to the AppDir:
```bash
export gqrx_loc=$(which gqrx)
@ -66,6 +81,8 @@ export filtered_libraries=$(echo $all_libraries | grep -vwf excludelist)
echo $filtered_libraries
```
If this filter doesn't work, then you might need to make sure each library is listed on its own line.
Finally, let's save the locations of these libraries to `library_locations.txt`
```bash
@ -81,6 +98,8 @@ xargs -a library_locations.txt -L 1 -I @ cp @ gqrx.AppDir/usr/lib/
If there are any libraries that you need get dynamically injected during runtime, you will have to copy those over as well.
For those using Qt plugins, those live within the `/usr/bin` directory. For example `libqxcb.so` lives in `/usr/bin/platforms/libqxcb.so`.
### Creating the AppImage
Finally we can use the `appimagetool` command to create the AppImage: