From 96ae2fd553a92b78adb6e1d3520bfa3ab91e042a Mon Sep 17 00:00:00 2001
From: Levon Gevorgyan <lgevorgyan03@gmail.com>
Date: Sat, 9 Aug 2025 16:04:36 -0500
Subject: [PATCH] add project versioning

---
 lib/build.sh  | 43 +++++++++++++++++++++++++++++++++++++++++++
 lib/common.sh | 10 ++++++++++
 lib/docker.sh | 20 ++++++++++----------
 3 files changed, 63 insertions(+), 10 deletions(-)

diff --git a/lib/build.sh b/lib/build.sh
index 6c05887..5d85847 100644
--- a/lib/build.sh
+++ b/lib/build.sh
@@ -281,6 +281,10 @@ do_build() {
 	local build="${1:-''}"
 	download_release "${build}" || return 1
 	get_build_conf "${build}" || return 1
+
+	# add build configuration to FFMPEG_BUILDER_INFO
+	FFMPEG_BUILDER_INFO+=("${build}=${ver}")
+
 	set_compile_opts || return 1
 	for dep in "${deps[@]}"; do
 		do_build "${dep}" || return 1
@@ -315,6 +319,9 @@ build() {
 	fi
 	test -f "${testfile}" && ${SUDO_MODIFY} rm "${testfile}"
 
+	# embed this project's enables/versions
+	# into ffmpeg with this variable
+	FFMPEG_BUILDER_INFO=("ffmpeg-builder=$(cd "${REPO_DIR}" && git rev-parse HEAD)")
 	for build in "${FFMPEG_ENABLES[@]}"; do
 		do_build "${build}" || return 1
 	done
@@ -464,11 +471,47 @@ build_libopus() {
 	${SUDO_MODIFY} make -j"${JOBS}" install || return 1
 	return 0
 }
+add_project_versioning_to_ffmpeg() {
+	local optFile
+	optFile="$(command ls ./**/ffmpeg_opt.c)"
+	if [[ ! $? -eq 0 || ${optFile} == '' || ! -f ${optFile} ]]; then
+		echo_fail "could not find ffmpeg_opt.c to add project versioning"
+	fi
+
+	local lineNum=0
+	local searchFor='Universal media converter\n'
+	local foundUsageStart=0
+	while read -r line; do
+		lineNum=$((lineNum + 1))
+		if line_contains "${line}" "${searchFor}"; then
+			foundUsageStart=1
+			continue
+		fi
+		if [[ ${foundUsageStart} -eq 1 ]]; then
+			if line_starts_with "${line}" '}'; then
+				break
+			fi
+		fi
+	done <"${optFile}"
+
+	echo_info "found ${line} on ${lineNum}"
+	for info in "${FFMPEG_BUILDER_INFO[@]}"; do
+		local newline="\    av_log(NULL, AV_LOG_INFO, \"${info}\\\n\");"
+		sed -i "${lineNum}i ${newline}" "${optFile}" || return 1
+		lineNum=$((lineNum + 1))
+	done
+	local newline="\    av_log(NULL, AV_LOG_INFO, \"\\\n\");"
+	sed -i "${lineNum}i ${newline}" "${optFile}" || return 1
+
+	return 0
+}
 build_ffmpeg() {
 	for enable in "${FFMPEG_ENABLES[@]}"; do
 		test "${enable}" == 'libsvtav1_psy' && enable='libsvtav1'
 		CONFIGURE_FLAGS+=("--enable-${enable}")
 	done
+	add_project_versioning_to_ffmpeg || return 1
+
 	./configure \
 		"${CONFIGURE_FLAGS[@]}" \
 		"${FFMPEG_EXTRA_FLAGS[@]}" \
diff --git a/lib/common.sh b/lib/common.sh
index 708fa83..f6331ce 100644
--- a/lib/common.sh
+++ b/lib/common.sh
@@ -148,3 +148,13 @@ line_contains() {
 		return 1
 	fi
 }
+
+line_starts_with() {
+	local line="$1"
+	local substr="$2"
+	if [[ $line == "${substr}"* ]]; then
+		return 0
+	else
+		return 1
+	fi
+}
diff --git a/lib/docker.sh b/lib/docker.sh
index d7fabbf..38f9e90 100644
--- a/lib/docker.sh
+++ b/lib/docker.sh
@@ -198,16 +198,6 @@ docker_run_image() {
 	for distro in "${DISTROS[@]}"; do
 		image_tag="$(set_distro_image_tag "${distro}")"
 
-		# if a docker registry is defined, pull from it
-		if [[ ${DOCKER_REGISTRY} != '' ]]; then
-			docker_login || return 1
-			docker pull \
-				"${DOCKER_REGISTRY}/${image_tag}"
-			docker tag "${DOCKER_REGISTRY}/${image_tag}" "${image_tag}"
-		fi
-
-		echo_info "running ffmpeg build for ${image_tag}"
-
 		# TODO REMOVE
 		if is_root_owned "${IGN_DIR}"; then
 			docker run \
@@ -229,6 +219,16 @@ docker_run_image() {
 				rm -rf "${DOCKER_WORKDIR}"/gitignore
 		fi
 
+		# if a docker registry is defined, pull from it
+		if [[ ${DOCKER_REGISTRY} != '' ]]; then
+			docker_login || return 1
+			docker pull \
+				"${DOCKER_REGISTRY}/${image_tag}"
+			docker tag "${DOCKER_REGISTRY}/${image_tag}" "${image_tag}"
+		fi
+
+		echo_info "running ffmpeg build for ${image_tag}"
+
 		docker run \
 			"${DOCKER_RUN_FLAGS[@]}" \
 			-u "$(id -u):$(id -g)" \