initial working ffmpeg static/shared

scripts/build-docker-images.sh

@@ -0,0 +1,24 @@
+#!/usr/bin/env bash
+
+FB_FUNC_NAMES+=('build_docker_images')
+FB_FUNC_DESCS['build_docker_images']='build docker images with required dependencies pre-installed'
+build_docker_images() {
+    DISTROS=( debian ubuntu archlinux fedora )
+    DOCKERFILE_DIR="${IGN_DIR}/Dockerfiles"
+    test -d "${DOCKERFILE_DIR}" || mkdir -p "${DOCKERFILE_DIR}"
+    for distro in "${DISTROS[@]}"; do
+        echo "\
+FROM ${distro}
+COPY scripts/ /ffmpeg-builder/scripts/
+COPY main.sh /ffmpeg-builder/
+RUN bash -c 'source /ffmpeg-builder/main.sh ; install_deps' || exit 1" \
+        > "${DOCKERFILE_DIR}/Dockerfile_${distro}"
+        image_tag="ffmpeg_builder_${distro}"
+        dockerfile="Dockerfile_${distro}"
+        echo_info "building ${image_tag}"
+        docker build \
+            -t "${image_tag}" \
+            -f "${DOCKERFILE_DIR}/${dockerfile}" \
+            "${REPO_DIR}/"
+    done
+}