COPY containers/busybox-config /tmp/bbx/.config
ADD $BBXURL /tmp/bbx/src.tar.gz
RUN set -x \
    && tar --strip-components=1 -C bbx -xzf bbx/src.tar.gz             \
    && ( cd bbx && yes "" | make oldconfig && make -j11 )              \
    && test ! -x /usr/bin/upx || upx -9q bbx/busybox

# Dummy up an OS release info file for those using systemd-nspawn.
# Copy in dummied-up OS release info file for those using nspawn.
# Without this, it'll gripe that the rootfs dir doesn't look like
# it contains an OS.
ARG FSLVER="trunk"
RUN cat <<-OSREL > /etc/os-release
COPY containers/os-release /etc/os-release
    NAME="Fossil BusyBox"
    ID="fslbbx"
    VERSION="${FSLVER}"
    HOME_URL="https://fossil-scm.org/home/doc/trunk/www/containers.md"
    BUG_REPORT_URL="https://fossil-scm.org/forum"
OSREL

### The changeable Fossil layer is the only one in the first stage that
### changes often, so add it last, to make it independent of the others.
###
### $FSLSTB can be either a file or a directory due to a ADD's bizarre
### behavior: it unpacks tarballs when added from a local file but not
### from a URL!   It matters because we default to a URL in case you're
### building outside a Fossil checkout, but when building via the
### container-image target, we can avoid a costly hit on the Fossil
### project's home site by pulling the data from the local repo via the
### "tarball" command.  This is a DVCS, after all!
ARG FSLCFG=""
ARG FSLVER="trunk"
ARG FSLURL="https://fossil-scm.org/home/tarball/src?r=${FSLVER}"
ENV FSLSTB=/tmp/fsl/src.tar.gz
ADD $FSLURL $FSLSTB
RUN set -x \
    && if [ -d $FSLSTB ] ; then mv $FSLSTB/src fsl ;                   \
       else tar -C fsl -xzf fsl/src.tar.gz ; fi                        \
    && m=fsl/src/src/main.mk                                           \