FFmpeg-Builds/generate.sh

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#!/bin/bash
set -e
shopt -s globstar
cd "$(dirname "$0")"
source util/vars.sh
export LC_ALL=C.UTF-8
rm -f Dockerfile Dockerfile.{dl,final,dl.final}
layername() {
printf "layer-"
basename "$1" | sed 's/.sh$//'
}
to_df() {
_of="${TODF:-Dockerfile}"
printf "$@" >> "$_of"
echo >> "$_of"
}
###
### Generate main Dockerfile
###
exec_dockerstage() {
SCRIPT="$1"
(
SELF="$SCRIPT"
STAGENAME="$(basename "$SCRIPT" | sed 's/.sh$//')"
source util/dl_functions.sh
source "$SCRIPT"
ffbuild_enabled || exit 0
to_df "ENV SELF=\"$SELF\" STAGENAME=\"$STAGENAME\""
STG="$(ffbuild_dockerdl)"
if [[ -n "$STG" ]]; then
HASH="$(sha256sum <<<"$STG" | cut -d" " -f1)"
export SELFCACHE=".cache/downloads/${STAGENAME}_${HASH}.tar.xz"
fi
ffbuild_dockerstage || exit $?
)
}
export TODF="Dockerfile"
to_df "FROM ${REGISTRY}/${REPO}/base-${TARGET}:latest AS base"
to_df "ENV TARGET=$TARGET VARIANT=$VARIANT REPO=$REPO ADDINS_STR=$ADDINS_STR"
to_df "COPY util/run_stage.sh /usr/bin/run_stage"
for addin in "${ADDINS[@]}"; do
(
source addins/"${addin}.sh"
type ffbuild_dockeraddin &>/dev/null && ffbuild_dockeraddin || true
)
done
PREVLAYER="base"
for ID in $(ls -1d scripts.d/??-* | sed -s 's|^.*/\(..\).*|\1|' | sort -u); do
LAYER="layer-$ID"
for STAGE in scripts.d/$ID-*; do
to_df "FROM $PREVLAYER AS $(layername "$STAGE")"
if [[ -f "$STAGE" ]]; then
exec_dockerstage "$STAGE"
else
for STAGE in "${STAGE}"/??-*; do
exec_dockerstage "$STAGE"
done
fi
done
to_df "FROM $PREVLAYER AS $LAYER"
for STAGE in scripts.d/$ID-*; do
if [[ -f "$STAGE" ]]; then
SCRIPT="$STAGE"
else
SCRIPTS=( "$STAGE"/??-* )
SCRIPT="${SCRIPTS[-1]}"
fi
(
SELF="$SCRIPT"
SELFLAYER="$(layername "$STAGE")"
source "$SCRIPT"
ffbuild_enabled || exit 0
ffbuild_dockerlayer || exit $?
TODF="Dockerfile.final" PREVLAYER="__PREVLAYER__" \
ffbuild_dockerfinal || exit $?
)
done
PREVLAYER="$LAYER"
done
to_df "FROM base"
sed "s/__PREVLAYER__/$PREVLAYER/g" Dockerfile.final | sort -u >> Dockerfile
rm Dockerfile.final
###
### Compile list of configure arguments and add them to the final Dockerfile
###
get_output() {
(
SELF="$1"
source $1
if ffbuild_enabled; then
ffbuild_$2 || exit 0
else
ffbuild_un$2 || exit 0
fi
)
}
source "variants/${TARGET}-${VARIANT}.sh"
for addin in ${ADDINS[*]}; do
source "addins/${addin}.sh"
done
for script in scripts.d/**/*.sh; do
FF_CONFIGURE+=" $(get_output $script configure)"
FF_CFLAGS+=" $(get_output $script cflags)"
FF_CXXFLAGS+=" $(get_output $script cxxflags)"
FF_LDFLAGS+=" $(get_output $script ldflags)"
FF_LDEXEFLAGS+=" $(get_output $script ldexeflags)"
FF_LIBS+=" $(get_output $script libs)"
done
FF_CONFIGURE="$(xargs <<< "$FF_CONFIGURE")"
FF_CFLAGS="$(xargs <<< "$FF_CFLAGS")"
FF_CXXFLAGS="$(xargs <<< "$FF_CXXFLAGS")"
FF_LDFLAGS="$(xargs <<< "$FF_LDFLAGS")"
FF_LDEXEFLAGS="$(xargs <<< "$FF_LDEXEFLAGS")"
FF_LIBS="$(xargs <<< "$FF_LIBS")"
to_df "ENV \\"
to_df " FF_CONFIGURE=\"$FF_CONFIGURE\" \\"
to_df " FF_CFLAGS=\"$FF_CFLAGS\" \\"
to_df " FF_CXXFLAGS=\"$FF_CXXFLAGS\" \\"
to_df " FF_LDFLAGS=\"$FF_LDFLAGS\" \\"
to_df " FF_LDEXEFLAGS=\"$FF_LDEXEFLAGS\" \\"
to_df " FF_LIBS=\"$FF_LIBS\""