CI/Linux: Add manifest to AppStream XML

.github/workflows/scripts/linux/generate-metainfo.sh

@@ -10,6 +10,7 @@ fi
 OUTFILE=$1
 GIT_DATE=$(git log -1 --pretty=%cd --date=short)
 GIT_VERSION=$(git tag --points-at HEAD)
+GIT_HASH=$(git rev-parse HEAD)
 
 if [[ "${GIT_VERSION}" == "" ]]; then
     GIT_VERSION=$(git rev-parse HEAD)
@@ -17,8 +18,11 @@ fi
 
 echo "GIT_DATE: ${GIT_DATE}"
 echo "GIT_VERSION: ${GIT_VERSION}"
+echo "GIT_HASH: ${GIT_HASH}"
 
 cp "${SCRIPTDIR}"/pcsx2-qt.metainfo.xml.in "${OUTFILE}"
 
 sed -i -e "s/@GIT_VERSION@/${GIT_VERSION}/" "${OUTFILE}"
 sed -i -e "s/@GIT_DATE@/${GIT_DATE}/" "${OUTFILE}"
+sed -i -e "s/@GIT_HASH@/${GIT_HASH}/" "${OUTFILE}"
+

.github/workflows/scripts/linux/install-packages-flatpak.sh

@@ -31,6 +31,7 @@ declare -a FLATPAK_PACKAGES=(
   "org.kde.Sdk/${ARCH}/${KDE_BRANCH}"
   "org.freedesktop.Platform.ffmpeg-full/${ARCH}/${BRANCH}"
   "org.freedesktop.Sdk.Extension.llvm16/${ARCH}/${BRANCH}"
+  "org.freedesktop.appstream-glib/${ARCH}/stable"
 )
 
 retry_command sudo apt-get -qq update

.github/workflows/scripts/linux/pcsx2-qt.metainfo.xml.in

@@ -22,8 +22,11 @@
     </screenshot>
   </screenshots>
   <content_rating type="oars-1.1"/>
-  <update_contact>pcsx2_AT_pcsx2.net</update_contact>
+  <update_contact>stenzek_AT_gmail.com</update_contact>
   <releases>
     <release version="@GIT_VERSION@" date="@GIT_DATE@" />
   </releases>
+  <custom>
+    <value key="flathub::manifest">https://raw.githubusercontent.com/PCSX2/pcsx2/@GIT_HASH@/.github/workflows/scripts/linux/flatpak/net.pcsx2.PCSX2.json</value>
+  </custom>
 </component>