112 lines
2.9 KiB
Bash
Executable File
112 lines
2.9 KiB
Bash
Executable File
#!/bin/sh
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#
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# Simple wrapper for debootstrap, run in the docker build context
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#
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FAKEROOT=`which fakeroot 2> /dev/null`
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# debootstrap < 1.0.67 generates empty sources.list, see Debian#732255
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MIN_DEBOOTSTRAP_VERSION=1.0.67
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exit_and_skip()
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{
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exit 3
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}
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#
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# fakeroot is needed to run the bootstrap stage
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#
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if [ -z $FAKEROOT ]; then
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echo "Please install fakeroot to enable bootstraping" >&2
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exit_and_skip
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fi
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if [ -z "${DEB_ARCH}" ]; then
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echo "Please set DEB_ARCH to choose an architecture (e.g. armhf)" >&2
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exit_and_skip
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fi
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if [ -z "${DEB_TYPE}" ]; then
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echo "Please set DEB_TYPE to a Debian archive name (e.g. testing)" >&2
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exit_and_skip
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fi
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# We check in order for
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#
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# - DEBOOTSTRAP_DIR pointing at a development checkout
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# - PATH for the debootstrap script (installed)
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#
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# If neither option works then we checkout debootstrap from its
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# upstream SCM and run it from there.
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#
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if [ -z $DEBOOTSTRAP_DIR ]; then
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NEED_DEBOOTSTRAP=false
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DEBOOTSTRAP=`which debootstrap 2> /dev/null`
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if [ -z $DEBOOTSTRAP ]; then
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echo "No debootstrap installed, attempting to install from SCM"
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NEED_DEBOOTSTRAP=true
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elif ! (echo "${MIN_DEBOOTSTRAP_VERSION}" ; "${DEBOOTSTRAP}" --version \
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| cut -d ' ' -f 2) | sort -t . -n -k 1,1 -k 2,2 -k 3,3 -c &>/dev/null; then
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echo "debootstrap too old, attempting to install from SCM"
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NEED_DEBOOTSTRAP=true
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fi
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if $NEED_DEBOOTSTRAP; then
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DEBOOTSTRAP_SOURCE=https://anonscm.debian.org/git/d-i/debootstrap.git
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git clone ${DEBOOTSTRAP_SOURCE} ./debootstrap.git
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export DEBOOTSTRAP_DIR=./debootstrap.git
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DEBOOTSTRAP=./debootstrap.git/debootstrap
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(cd "${DEBOOTSTRAP_DIR}" && "${FAKEROOT}" make )
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fi
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else
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DEBOOTSTRAP=${DEBOOTSTRAP_DIR}/debootstrap
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if [ ! -f $DEBOOTSTRAP ]; then
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echo "Couldn't find script at ${DEBOOTSTRAP}" >&2
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exit_and_skip
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fi
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fi
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#
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# Finally check to see if any qemu's are installed
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#
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BINFMT_DIR=/proc/sys/fs/binfmt_misc
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if [ ! -e $BINFMT_DIR ]; then
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echo "binfmt_misc needs enabling for a QEMU bootstrap to work" >&2
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exit_and_skip
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else
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# DEB_ARCH and QEMU arch names are not totally aligned
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case "${DEB_ARCH}" in
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amd64)
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QEMU=qemu-i386
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;;
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armel|armhf)
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QEMU=qemu-arm
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;;
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arm64)
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QEMU=qemu-aarch64
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;;
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powerpc)
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QEMU=qemu-ppc
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;;
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ppc64el)
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QEMU=qemu-ppc64le
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;;
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s390)
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QEMU=qemu-s390x
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;;
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*)
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QEMU=qemu-${DEB_ARCH}
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;;
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esac
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if [ ! -e "${BINFMT_DIR}/$QEMU" ]; then
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echo "No binfmt_misc rule to run $QEMU, can't bootstrap" >&2
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exit_and_skip
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fi
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fi
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echo "Building a rootfs using ${FAKEROOT} and ${DEBOOTSTRAP} ${DEB_ARCH}/${DEB_TYPE}"
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${FAKEROOT} ${DEBOOTSTRAP} --variant=buildd --foreign --arch=$DEB_ARCH $DEB_TYPE . http://httpredir.debian.org/debian || exit 1
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exit 0
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