From c4204822e0f6c29940848db16bb7933f92a3b74e Mon Sep 17 00:00:00 2001
From: Levon Gevorgyan <lgevorgyan03@gmail.com>
Date: Wed, 30 Jul 2025 19:36:36 -0500
Subject: [PATCH] build for amd64 on arm64

---
 Jenkinsfile                                |  4 +--
 lib/docker.sh                              | 32 ++++++++++++++++++++--
 scripts/docker_run_amd64_image_on_arm64.sh |  1 +
 scripts/entry.sh                           |  2 +-
 4 files changed, 34 insertions(+), 5 deletions(-)
 create mode 120000 scripts/docker_run_amd64_image_on_arm64.sh

diff --git a/Jenkinsfile b/Jenkinsfile
index f4835ad..59a00bd 100644
--- a/Jenkinsfile
+++ b/Jenkinsfile
@@ -8,13 +8,13 @@ pipeline {
                     axis {
                         name 'DISTRO'
                         values 'debian:bookworm', 'ubuntu:24.04', 'ubuntu:22.04',
-                             'ogarcia/archlinux:latest', 'fedora:42'
+                             'archlinux:latest', 'fedora:42'
                     }
                 }
                 stages {
                     stage('Build') {
                         steps {
-                            sh "./scripts/docker_run_image.sh ${DISTRO}"
+                            sh "./scripts/docker_run_amd64_image_on_arm64.sh ${DISTRO}"
                         }
                     }
                 }
diff --git a/lib/docker.sh b/lib/docker.sh
index 115e04c..81d9e73 100644
--- a/lib/docker.sh
+++ b/lib/docker.sh
@@ -1,12 +1,18 @@
 #!/usr/bin/env bash
 
+check_docker() {
+	if missing_cmd docker; then
+		echo_info "install docker"
+		curl https://get.docker.com -sSf | bash
+	fi
+}
+
 validate_selected_image() {
 	local selectedImage="${1:-}"
 	local validImages=(
 		'ubuntu:22.04' 'ubuntu:24.04'
 		'fedora:41' 'fedora:42'
 		'archlinux:latest'
-		'ogarcia/archlinux:latest'
 		'debian:bookworm'
 	)
 	for distro in "${validImages[@]}"; do
@@ -28,9 +34,11 @@ FB_FUNC_NAMES+=('docker_build_image')
 FB_FUNC_DESCS['docker_build_image']='build docker image with required dependencies pre-installed'
 docker_build_image() {
 	validate_selected_image "$@" || return 1
+	check_docker || return 1
 	DOCKERFILE_DIR="${IGN_DIR}/Dockerfiles"
 	test -d "${DOCKERFILE_DIR}" && rm -rf "${DOCKERFILE_DIR}"
-	mkdir -p "${DOCKERFILE_DIR}"
+	mkdir -p "${DOCKERFILE_DIR}" || return 1
+	local platform="${PLATFORM:-linux/amd64}"
 	for distro in "${DISTROS[@]}"; do
 		image_tag="ffmpeg_builder_${distro}"
 		echo_info "sourcing package manager for ${image_tag}"
@@ -41,6 +49,7 @@ docker_build_image() {
 		distroFmtPkgMgr="${DOCKERFILE_DIR}/${distroFmt}-pkg_mgr"
 		# get package manager info
 		docker run --rm \
+			--platform "${platform}" \
 			-v "${REPO_DIR}":/workdir \
 			-w /workdir \
 			"${distro}" \
@@ -67,6 +76,7 @@ docker_build_image() {
 
 		echo_info "building ${image_tag}"
 		docker build \
+			--platform "${platform}" \
 			-t "${image_tag}" \
 			-f "${dockerfile}" \
 			. || return 1
@@ -81,13 +91,31 @@ FB_FUNC_NAMES+=('docker_run_image')
 FB_FUNC_DESCS['docker_run_image']='run docker image to build ffmpeg'
 docker_run_image() {
 	docker_build_image "$@" || return 1
+	check_docker || return 1
+	local platform="${PLATFORM:-linux/amd64}"
 	for distro in "${DISTROS[@]}"; do
 		image_tag="ffmpeg_builder_${distro}"
 		echo_info "running ffmpeg build for ${image_tag}"
 		docker run --rm \
+			--platform ${platform} \
 			-v "${REPO_DIR}":/workdir \
 			-w /workdir \
 			"${image_tag}" \
 			./scripts/build.sh || return 1
 	done
 }
+
+# shellcheck disable=SC2154
+FB_FUNC_NAMES+=('docker_run_amd64_image_on_arm64')
+# FB_FUNC_DESCS used externally
+# shellcheck disable=SC2034
+FB_FUNC_DESCS['docker_run_amd64_image_on_arm64']='run docker image to build ffmpeg for amd64 on arm64'
+docker_run_amd64_image_on_arm64() {
+	if missing_cmd qemu-x86_64-static; then
+		determine_pkg_mgr || return 1
+		${pkg_install} qemu-user-static || return 1
+	fi
+	check_docker || return 1
+	docker run --privileged --rm tonistiigi/binfmt --install all || return 1
+	docker_run_image "$@"
+}
diff --git a/scripts/docker_run_amd64_image_on_arm64.sh b/scripts/docker_run_amd64_image_on_arm64.sh
new file mode 120000
index 0000000..44b7711
--- /dev/null
+++ b/scripts/docker_run_amd64_image_on_arm64.sh
@@ -0,0 +1 @@
+entry.sh
\ No newline at end of file
diff --git a/scripts/entry.sh b/scripts/entry.sh
index a6342f4..1b85ca4 100755
--- a/scripts/entry.sh
+++ b/scripts/entry.sh
@@ -3,6 +3,6 @@ cd "$(dirname "$(readlink -f $0)")/.."
 export FB_RUNNING_AS_SCRIPT=1
 . main.sh
 scr_name="$(bash_basename $0)"
-cmd="${scr_name//.sh/}"
+cmd="${scr_name//.sh}"
 set -x
 $cmd $@