small updates and corrections

tools/lammps-gui/flatpak/.gitignore

@@ -1,2 +1,4 @@
 /builddir
 /.flatpak-builder
+/repo
+lammps-gui*.flatpak

tools/lammps-gui/flatpak/build-lammps-gui-flatpak.sh

@@ -1,3 +1,3 @@
 #!/bin/sh
-flatpak-builder --force-clean --user --install-deps-from=flathub --repo=repo --install builddir org.lammps.lammps-gui.yml
+flatpak-builder --gpg-sign=EEA103764C6C633EDC8AC428D9B44E93BF0C375A --force-clean --user --install-deps-from=flathub --repo=repo --install builddir org.lammps.lammps-gui.yml
 flatpak build-bundle repo lammps-gui.flatpak org.lammps.lammps-gui --runtime-repo=https://flathub.org/repo/flathub.flatpakrepo

tools/lammps-gui/flatpak/lammps-gui.appdata.xml

@@ -0,0 +1 @@
+../lammps-gui.appdata.xml

tools/lammps-gui/flatpak/org.lammps.lammps-gui.yml

@@ -1,8 +1,10 @@
 id: org.lammps.lammps-gui
+default-branch: 1.6.6
 runtime: org.kde.Platform
 runtime-version: "5.15-23.08"
 sdk: org.kde.Sdk
 command: lammps-gui
+metadata: lammps-gui.appdata.xml
 finish-args:
   - --share=ipc
   - --socket=fallback-x11
@@ -12,9 +14,9 @@ finish-args:
 build-options:
   build-args:
     - --share=network
-rename-desktop-file: lammps-gui.desktop
-rename-appdata-file: lammps.org.appdata.xml
 rename-icon: lammps
+rename-desktop-file: lammps-gui.desktop
+rename-appdata-file: lammps-gui.appdata.xml
 rename-mime-file: lammps-input.xml
 modules:
   - name: lammps-gui

tools/lammps-gui/lammps-gui.appdata.xml

@@ -4,7 +4,9 @@
   <metadata_license>CC-BY-3.0</metadata_license>
   <project_license>GPL-2.0</project_license>
   <name>LAMMPS-GUI</name>
-  <summary>Graphical interface to edit, run, plot, and visualize simulations with the LAMMPS MD code</summary>
+  <summary>
+    Graphical interface to edit, run, plot, and visualize simulations with the LAMMPS MD code
+  </summary>
 
   <description>
     <p>LAMMPS-GUI is an editor customized for editing input files for the LAMMPS MD simulation software.  It also includes LAMMPS and thus can run it directly from the GUI.  Furthermore it has facilities to create or view and animate snapshot images, monitor and plot thermodynamic properties and show the console output of the running simulation.</p>
@@ -31,11 +33,12 @@
       <caption>LAMMPS-GUI snapshot image window</caption>
     </screenshot>
   </screenshots>
+
   <url type="homepage">https://www.lammps.org/</url>
   <url type="bugtracker">https://github.com/lammps/lammps/issues</url>
   <url type="help">https://docs.lammps.org/stable/</url>
 
-  <update_contact>packages@lammps.org</update>
+  <update_contact>packages@lammps.org</update_contact>
   <developer_name>Axel Kohlmeyer</developer_name>
   <project_group>LAMMPS</project_group>
   <keywords>