epm play youtube-music: add arm support; fix x86_64 AppImage download (eterbug #17865)

play.d/youtube-music.sh

 #!/bin/sh
 
 PKGNAME=YouTube-Music
-SUPPORTEDARCHES="x86_64"
+SUPPORTEDARCHES="x86_64 armv7l aarch64"
 VERSION="$2"
 DESCRIPTION="YouTube Music Desktop App bundled with custom plugins (and built-in ad blocker / downloader)"
 URL="https://github.com/th-ch/youtube-music"
 
 . $(dirname $0)/common.sh
 
-PKGURL="$(eget --list --latest https://github.com/th-ch/youtube-music/releases/ "YouTube-Music-$VERSION.AppImage")"
+# hack for YouTube-Music-3.6.2.AppImage. eget trying to download armv7l ver instead of x86_64
+get_x86_64_ver(){
+    if [ "$VERSION" = "*" ]; then
+        VERSION=$(eget --list --latest "https://github.com/th-ch/youtube-music/releases" "YouTube-Music-*.AppImage" \
+            | grep -oE 'YouTube-Music-[0-9]+\.[0-9]+(\.[0-9]+)?' | grep -oE '[0-9]+\.[0-9]+(\.[0-9]+)?')
+        
+        mask="YouTube-Music-$VERSION.AppImage" 
+    else
+        mask="YouTube-Music-$VERSION.AppImage" 
+    fi
+}
+
+case $(epm print info -a) in
+    x86_64)
+        get_x86_64_ver ;;
+    armv7l)
+        mask="YouTube-Music-$VERSION-armv7l.AppImage" ;; 
+    aarch64)
+        mask="YouTube-Music-$VERSION-arm64.AppImage" ;;  
+    *)
+        fatal "Unsupported arch $arch for $(epm print info -d)" ;;
+esac
+
+PKGURL="$(eget --list --latest https://github.com/th-ch/youtube-music/releases/ $mask)"
 
 install_pkgurl