Add x264 test script

generate.sh

@@ -0,0 +1,36 @@
+#!/bin/bash
+set -e
+
+cd "$(dirname "$0")"
+rm -f Dockerfile
+
+if [[ $# -lt 1 || $# -gt 2 ]]; then
+    echo "Invalid Arguments"
+    exit -1
+fi
+
+TARGET="$1"
+VARIANT="${2:-gpl}"
+REPO="${GITHUB_REPOSITORY:-btbn/ffmpeg-builds}"
+
+to_df() {
+    printf "$@" >> Dockerfile
+    echo >> Dockerfile
+}
+
+REPO="${REPO,,}"
+
+to_df "FROM $REPO/base-$TARGET:latest"
+to_df "ENV TARGET $TARGET"
+to_df "ENV VARIANT $VARIANT"
+to_df "ENV REPO $REPO"
+to_df "ENV FFPREFIX /opt/ffbuild"
+
+for script in scripts.d/*.sh; do
+(
+    SELF="$script"
+    source $script
+    ffbuild_relevant || exit 0
+    ffbuild_dockerstage || exit $?
+)
+done