Actually build

build.sh

@@ -0,0 +1,58 @@
+#!/bin/bash
+set -xe
+
+cd "$(dirname "$0")"
+
+if [[ $# -lt 1 || $# -gt 2 ]]; then
+    echo "Invalid Arguments"
+    exit -1
+fi
+
+TARGET="$1"
+VARIANT="${2:-gpl}"
+REPO="${GITHUB_REPOSITORY:-btbn/ffmpeg-builds}"
+REPO="${REPO,,}"
+
+IMAGE="$REPO/$TARGET-$VARIANT:latest"
+
+get_output() {
+    (
+        SELF="$1"
+        source $1
+        ffbuild_enabled || exit 0
+        ffbuild_$2 || exit -1
+    )
+}
+
+CONFIGURE=""
+CFLAGS=""
+LDFLAGS=""
+
+for script in scripts.d/*.sh; do
+    CONFIGURE+="$(get_output $script configure)"
+    CFLAGS+="$(get_output $script cflags)"
+    LDFLAGS+="$(get_output $script ldflags)"
+done
+
+if [[ $VARIANT == gpl ]]; then
+    VARIANT_FLAGS="--enable-gpl --enable-version3"
+elif [[ $VARIANT == lgpl ]]; then
+    VARIANT_FLAGS="--enable-version3"
+else
+    echo "Unknown variant"
+    exit -1
+fi
+
+BUILD_CONTAINER="ffbuild"
+
+docker rm "$BUILD_CONTAINER" 2>/dev/null || true
+docker run -i --name "$BUILD_CONTAINER" "$IMAGE" bash -s <<EOF
+    set -xe
+
+    git clone https://git.videolan.org/git/ffmpeg.git ffmpeg
+    cd ffmpeg
+    
+    ./configure \$FFBUILD_TARGET_FLAGS $VARIANT_FLAGS $CONFIGURE --extra-cflags="$CFLAGS" --extra-ldflags="$LDFLAGS"
+    
+    make -j\$(nproc)
+EOF