fix docker-build.sh for ubuntu, what a ride

docker-build.sh

@@ -4,8 +4,6 @@
 # and also optimizing some code with this commit.
 # xoxo :D
 
-bash | set -xeuo pipefail
-
 case $(uname -m) in
   x86_64)
     ARCH=amd64;;
@@ -22,17 +20,24 @@ case $(uname -m) in
     exit 1
 esac
 
-echo "Architecture: $ARCH"
-apt-get -y install curl
-curl --connect-timeout 5 \
+echo "(INFO) Architecture detected: $ARCH"
+echo "(1/5) READY - Acquire temp dependencies in ffmpeg obtain layer"
+apt-get -y install curl xz-utils
+echo "(2/5) DOWNLOAD - Acquire latest ffmpeg and ffprobe from John van Sickle's master-sourced builds in ffmpeg obtain layer"
+curl -o ffmpeg.txz \
+    --connect-timeout 5 \
     --max-time 10 \
     --retry 5 \
     --retry-delay 0 \
     --retry-max-time 40 \
-    "https://johnvansickle.com/ffmpeg/builds/ffmpeg-git-${ARCH}-static.tar.xz" -o ffmpeg.txz
-apt-get remove curl
+    "https://johnvansickle.com/ffmpeg/builds/ffmpeg-git-${ARCH}-static.tar.xz"
 mkdir /tmp/ffmpeg
 tar xf ffmpeg.txz -C /tmp/ffmpeg
+echo "(3/5) CLEANUP - Remove temp dependencies from ffmpeg obtain layer"
+apt-get -y remove curl xz-utils
+apt-get -y autoremove
+echo "(4/5) PROVISION - Provide ffmpeg and ffprobe from ffmpeg obtain layer"
 cp /tmp/ffmpeg/*/ffmpeg /usr/local/bin/ffmpeg
 cp /tmp/ffmpeg/*/ffprobe /usr/local/bin/ffprobe
+echo "(5/5) CLEANUP - Remove temporary downloads from ffmpeg obtain layer"
 rm -rf /tmp/ffmpeg ffmpeg.txz