build: fix ipkg-remove: add support for removing apk files

Use apk adbdump to extract metadata from .apk files to derive the real
package name.

Signed-off-by: Felix Fietkau <nbd@nbd.name>

scripts/ipkg-remove

@@ -4,10 +4,11 @@ sourcename="$1"; shift
 
 for pkg in "$@"; do
 	case "$pkg" in
-		*/"${sourcename}_"*.ipk)
+		*/"${sourcename}_"*.ipk|\
+		*/"${sourcename}-"[0-9]*.apk)
 			rm -vf "$pkg"
 		;;
-		*)
+		*.ipk)
 			tar -Ozxf "$pkg" ./control.tar.gz 2>/dev/null | tar -Ozxf - ./control 2>/dev/null | {
 				packagename=
 				abiversion=
@@ -21,6 +22,20 @@ for pkg in "$@"; do
 				[ "$packagename" = "$sourcename" ] && rm -vf "$pkg"
 			}
 		;;
+		*.apk)
+			apk adbdump "$pkg" | grep -E '^  (name:|.*openwrt:abiversion)' | {
+				packagename=
+				abiversion=
+				while read field value; do
+					case "$field" in
+						name:) packagename="$value";;
+						-) abiversion="${value##*abiversion=}";;
+					esac
+				done
+				[ -n "$abiversion" ] && packagename="${packagename%%$abiversion}"
+				[ "$packagename" = "$sourcename" ] && rm -vf "$pkg"
+			}
+		;;
 	esac
 done