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|
#!/bin/bash
set -e
unmount_virtual()
{
umount "$1/proc" || true
umount "$1/sys" || true
umount "$1/tree/proc" || true
umount "$1/tree/sys" || true
}
pass_snapshot()
{
echo -n "$snapshotdir/$1-snapshot.tar.gz"
}
has_pass()
{
if [ -e $(pass_snapshot "$1") ]
then
return 0
else
return 1
fi
}
update_morph()
{
local dir="$1"
cp baserock-bootstrap "$dir/." # update bootstrap script
rm -rf "$dir/tree/baserock/gits/morph"
mkdir -p "$dir/tree/baserock/gits/morph"
# Copy everything except the target directory into the target directory.
# The point is to be able to keep the working area for a bootstrap inside
# the morph source directory. This is useful for Jenkins jobs.
local base=$(basename $(basename "$dir"))
find . -mindepth 1 -maxdepth 1 ! -name "$base" ! -name '*.tar.gz' \
-exec cp -a '{}' "$dir/tree/baserock/gits/morph" ';'
}
run_pass()
{
local dir="$1"
local passname="$2"
local tarball=$(pass_snapshot "$passname")
if "$snapshot" && has_pass "$passname"
then
tar -C "$dir" -xhf "$tarball"
update_morph "$dir"
else
update_morph "$dir"
"./do-squeeze-chroot" bash -x baserock-bootstrap "$passname" || exit 1
if "$snapshot"
then
tar -C "$dir" -caf "$tarball" .
fi
fi
}
export LC_ALL=C
if [ "x$1" = x ]
then
echo "Usage: $0 chroot-dir" 1>&2
exit 1
fi
mkdir -p "$1"
dir="$1/squeeze-chroot"
: ${snapshot:=true}
snapshotdir="$1"
cat >"./do-squeeze-chroot" <<EOF
#!/bin/sh
# clear the temporary directory used outside the chroot
export TMPDIR=
if mount -t proc proc "$dir/proc"; then
trap "umount \"$dir/proc\"" INT TERM EXIT
if mount -t sysfs sysfs "$dir/sys"; then
trap "umount \"$dir/proc\" \"$dir/sys\"" INT TERM EXIT
if [ "x$CCACHE_HOST_DIR" != "x" ]; then
if mount --bind "$CCACHE_HOST_DIR" "$dir/var/tmp/ccache"; then
trap "umount \"$dir/proc\" \"$dir/sys\" \"$dir/var/tmp/ccache\"" \
INT TERM EXIT
chroot "$dir" "\$@"
fi
else
chroot "$dir" "\$@"
fi
fi
fi
EOF
chmod +x "./do-squeeze-chroot"
if ([ "x$DEBIAN_MIRROR" = x ] && echo DEBIAN_MIRROR is unspecified >&2) ||
([ "x$GIT_TARBALLS" = x ] && echo GIT_TARBALLS is unspecified >&2)
then
echo You have to set DEBIAN_MIRROR and other environment variables 1>&2
exit 1
fi
if ! which dpkg 2> /dev/null; then
echo "Warning: dpkg not found -- should debootstrap fail to autodetect "
echo "your architecture, set ARCH in the environment (probably to amd64)"
fi
# prepare the ccache directory in the chroot, if necessary
if [ "x$CCACHE_HOST_DIR" = "x" ]; then
# print a warning if the CCACHE_HOST_DIR is not set
echo "CCACHE_HOST_DIR is unspecified, but that's ok" >&2
fi
unmount_virtual "$dir"
rm -rf "$dir"
mkdir "$dir"
chrootsnapshot="$snapshotdir/squeeze.tar.gz"
if ! "$snapshot" || ! has_pass pass1a; then
if "$snapshot" && [ -e "$chrootsnapshot" ]
then
tar -C "$dir" -xhf "$chrootsnapshot"
else
EXTRAPACKAGES="build-essential,gawk,bison,flex,python,autoconf"
EXTRAPACKAGES="$EXTRAPACKAGES,autopoint,automake,gettext,libtool"
EXTRAPACKAGES="$EXTRAPACKAGES,help2man,texinfo,sudo,ccache,gperf"
EXTRAPACKAGES="$EXTRAPACKAGES,python-pip,python-simplejson,python-yaml"
EXTRAARGS=
if [ -n $ARCH]; then
EXTRAARGS=$ARCH
fi
debootstrap $EXTRAARGS --include="$EXTRAPACKAGES" squeeze \
"$dir" "$DEBIAN_MIRROR"
mkdir -p "$dir/etc"
hostname > "$dir/etc/hostname"
cat <<EOF > "$dir/etc/hosts"
127.0.0.1 localhost
127.0.1.1 `hostname`
EOF
# create the directory for cached ccache object files
mkdir -p "$dir/var/tmp/ccache"
# manually build and install cliapp
"./do-squeeze-chroot" mkdir -p /src
"./do-squeeze-chroot" \
git clone git://roadtrain.codethink.co.uk/delta/cliapp /src/cliapp
"./do-squeeze-chroot" \
sh -c 'cd /src/cliapp && "$@"' -- python setup.py build
"./do-squeeze-chroot" \
sh -c 'cd /src/cliapp && "$@"' -- python setup.py install
"./do-squeeze-chroot" pip install ordereddict
if "$snapshot"
then
tar -caf "$chrootsnapshot" -C "$dir" .
fi
fi
fi
# Unpack existing snapshot, or run pass1 of bootstrap and then make snapshot.
if ! "$snapshot" || ! has_pass pass1b
then
run_pass "$dir" pass1a
fi
if ! "$snapshot" || ! has_pass pass2a
then
run_pass "$dir" pass1b
fi
if ! "$snapshot" || ! has_pass pass2b
then
run_pass "$dir" pass2a
fi
if ! "$snapshot" || ! has_pass pass3a
then
run_pass "$dir" pass2b
fi
if ! "$snapshot" || ! has_pass pass3b
then
run_pass "$dir" pass3a
fi
snapshot=false run_pass "$dir" pass3b
echo "Passes 1, 2, and 3 of bootstrap done (possibly cached)."
|
