epm repack: add hack for get AppImage version from URL

bin/epm-pack

@@ -30,7 +30,7 @@ __epm_pack_run_handler()
     local packname="$1"
     local tarname="$2"
     local packversion="$3"
-    local url="$3"
+    local url="$4"
     returntarname=''
 
     local repackcode="$EPM_PACK_SCRIPTS_DIR/$packname.sh"

bin/epm-repack

@@ -109,7 +109,8 @@ __prepare_source_package()
 
     # they will fill $returntarname
     if rhas "$alpkg" "\.AppImage$" ; then
-        __epm_pack_run_handler generic-appimage "$pkg"
+        # big hack with $pkg_urls_downloaded (it can be a list, not a single url)
+        __epm_pack_run_handler generic-appimage "$pkg" "" "$pkg_urls_downloaded"
         SUBGENERIC='appimage'
     elif rhas "$alpkg" "\.snap$" ; then
         __epm_pack_run_handler generic-snap "$pkg"

pack.d/generic-appimage.sh

@@ -3,6 +3,7 @@
 TAR="$1"
 RETURNTARNAME="$2"
 VERSION="$3"
+URL="$4"
 
 . $(dirname $0)/common.sh
 
@@ -29,6 +30,12 @@ str="$(grep '^X-AppImage-Version=' $DESKTOPFILE)"
 if [ -n "$str" ] ; then
     VERSION="$(echo $str | sed -e 's|.*X-AppImage-Version=||')"
 fi
+
+# https://github.com/neovide/neovide/releases/download/0.12.2/neovide.AppImage
+if [ -z "$VERSION" ] && rhas "$URL" "github.com.*/releases/download" ; then
+    VERSION="$(echo "$URL" | sed -e 's|.*/releases/download/||' -e "s|/$alpkg||")"
+fi
+
 [ -n "$VERSION" ] || fatal "Can't get version from $TAR."
 
 PKGNAME=$PRODUCT-$VERSION.tar