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|
#!/bin/sh
# configurable variables
pb=/var/portbuild
# XXX unused
get_latest_snap() {
snap=$1
zfs list -rHt snapshot ${snap} | tail -1 | awk '{print $1}'
}
now() {
date +%Y%m%d%H%M%S
}
do_list() {
arch=$1
branch=$2
buildpar=/var/portbuild/${arch}/${branch}/builds
if [ -d ${buildpar} ]; then
snaps=$(cd ${buildpar}; ls -1d 2* 2> /dev/null)
echo "The following builds are active:"
echo ${snaps}
if [ -L ${buildpar}/latest -a -d ${buildpar}/latest/ ]; then
link=$(readlink ${buildpar}/latest)
link=${link%/}
link=${link##*/}
echo "Latest build is: ${link}"
fi
else
echo "No such build environment ${arch}/${branch}"
exit 1
fi
}
do_create() {
arch=$1
branch=$2
buildid=$3
builddir=$4
shift 4
mountpoint=${builddir}
newfs=a/portbuild/${arch}/${buildid}
zfs create -o mountpoint=${mountpoint} ${newfs} || exit 1
chown -R ports-${arch}:portmgr ${mountpoint}
chmod g+w ${mountpoint}
do_portsupdate_inner ${arch} ${branch} ${buildid} ${builddir} $@
do_srcupdate_inner ${arch} ${branch} ${buildid} ${builddir} $@
ln -sf ${builddir} ${pbab}/builds/latest
echo "New build ID is ${buildid}"
}
do_clone() {
arch=$1
branch=$2
buildid=$3
builddir=$4
shift 4
if [ "$#" -gt 0 ]; then
newid=$1
shift
else
newid=$(now)
fi
tmp=$(realpath ${builddir})
tmp=${tmp%/}
newbuilddir="${tmp%/*}/${newid}"
oldfs=a/portbuild/${arch}/${buildid}
newfs=a/portbuild/${arch}/${newid}
zfs snapshot ${oldfs}@${newid}
zfs clone ${oldfs}@${newid} ${newfs}
zfs set mountpoint=${newbuilddir} ${newfs}
zfs promote ${newfs}
if zfs list -H -t filesystem ${oldfs}/ports 2> /dev/null; then
portsnap=${oldfs}/ports@${newid}
zfs snapshot ${portsnap}
zfs clone ${portsnap} ${newfs}/ports
zfs promote ${newfs}/ports
fi
if zfs list -H -t filesystem ${oldfs}/src 2> /dev/null; then
srcsnap=${oldfs}/src@${newid}
zfs snapshot ${srcsnap}
zfs clone ${srcsnap} ${newfs}/src
zfs promote ${newfs}/src
fi
if [ -d ${newbuilddir} ]; then
if [ ! -f ${pbab}/builds/previous/.keep ]; then
/var/portbuild/scripts/build destroy ${arch} ${branch} previous
fi
rm -f ${pbab}/builds/previous
mv ${pbab}/builds/latest ${pbab}/builds/previous
ln -sf ${newbuilddir} ${pbab}/builds/latest
fi
echo "New build ID is ${newid}"
}
do_portsupdate() {
arch=$1
branch=$2
buildid=$3
builddir=$4
shift 4
if [ $# -gt 0 ]; then
arg=$1
shift
fi
destroy_fs a/portbuild/${arch} ${buildid} /ports || exit 1
if [ "${arg}" = "-umount" ]; then
return
fi
do_portsupdate_inner ${arch} ${branch} ${buildid} ${builddir} $@
}
do_portsupdate_inner() {
arch=$1
branch=$2
buildid=$3
builddir=$4
shift 4
echo "================================================"
echo "Reimaging ZFS ports tree on ${builddir}/ports"
echo "================================================"
portsfs=a/portbuild/${arch}/${buildid}/ports
now=$(now)
zfs snapshot a/snap/ports@${now}
zfs clone a/snap/ports@${now} ${portsfs}
zfs set mountpoint=${builddir}/ports ${portsfs}
cp ${builddir}/ports/cvsdone ${builddir}
}
do_srcupdate() {
arch=$1
branch=$2
buildid=$3
builddir=$4
shift 4
if [ $# -gt 0 ]; then
arg=$1
shift
fi
destroy_fs a/portbuild/${arch} ${buildid} /src || exit 1
if [ "${arg}" = "-umount" ]; then
return
fi
do_srcupdate_inner ${arch} ${branch} ${buildid} ${builddir} $@
}
do_srcupdate_inner() {
arch=$1
branch=$2
buildid=$3
builddir=$4
shift 4
echo "================================================"
echo "Reimaging ZFS src tree on ${builddir}/src"
echo "================================================"
now=$(now)
srcfs=a/portbuild/${arch}/${buildid}/src
zfs snapshot a/snap/src-${branch}@${now}
zfs clone a/snap/src-${branch}@${now} ${srcfs}
zfs set mountpoint=${builddir}/src ${srcfs}
}
cleanup_client() {
arch=$1
branch=$2
buildid=$3
mach=$4
arg=$5
# XXX use same exclusion protocol as claim-chroot
echo "Started cleaning up ${arch}/${branch} build ID ${buildid} on ${mach}"
test -f ${pb}/${arch}/portbuild.${mach} && . ${pb}/${arch}/portbuild.${mach}
# Kill off builds and clean up chroot
${pb}/scripts/dosetupnode ${arch} ${branch} ${buildid} ${mach} -nocopy -queue -full
echo "Finished cleaning up ${arch}/${branch} build ID ${buildid} on ${mach}"
}
do_cleanup() {
arch=$1
branch=$2
buildid=$3
builddir=$4
arg=$5
shift 5
for i in `cat ${pb}/${arch}/mlist`; do
cleanup_client ${arch} ${branch} ${buildid} ${i} ${arg} &
done
wait
}
do_upload() {
arch=$1
branch=$2
buildid=$3
builddir=$4
shift 4
echo "Not implemented yet"
exit 1
}
test_fs() {
local fs=$1
zfs list -Ht filesystem ${fs} > /dev/null 2>&1
}
get_latest_child() {
local fs=$1
# Return the child of this filesystem with lexicographically
# highest name
#
# XXX if a filesystem is cloned into a different prefix
# (e.g. different arch) then we may not get the most recent one
# but that should not happen.
zfs get -H -o name,value origin | grep ${fs} | sort | \
(while read zfs origin; do
if [ "${origin%@*}" = "${fs}" ]; then
child=${zfs}
fi
done; echo ${child})
}
get_parent() {
local fs=$1
# Check whether this filesystem has a parent
zfs get -H -o value origin ${fs} | \
(read snap;
case "${snap}" in
-|a/snap/*)
;;
*)
parent=${snap}
;;
esac; echo ${parent})
}
destroy_fs() {
fs=$1
buildid=$2
subfs=$3
fullfs=${fs}/${buildid}${subfs}
if test_fs "${fullfs}"; then
# We can destroy a leaf filesystem (having no dependent
# clones) with no further effort. However if we are
# destroying the root of the clone tree then we have to
# promote a child to be the new root.
#
# XXX In principle we might have to iterate until we end up as
# a leaf but I don't know if this can happen.
echo "Filesystem ${fullfs}"
child=$(get_latest_child ${fullfs})
parent=$(get_parent ${fullfs})
echo "Filesystem has parent ${parent}"
if [ -z "${child}" ]; then
echo "Filesystem is a leaf"
else
echo "Filesystem has latest child ${child}"
# Check whether filesystem is root
if [ -z "${parent}" ]; then
echo "Filesystem is root; promoting ${child}"
zfs promote ${child}
parent=$(get_parent ${fullfs})
echo "New parent is ${parent}"
else
echo "Filesystem has parent ${parent} and cannot be destroyed"
return 1
fi
fi
# We might have snapshots on the target filesystem, e.g. if it
# is both the head and tail of its clone tree. They should be
# unreferenced.
# We have to grep because zfs list -H returns an error instead of
# a null list if no snapshots exist
if ! (zfs list -r -H -o name -t snapshot ${fullfs} | grep "^${fullfs}@" | xargs -n 1 zfs destroy); then
return 1
fi
# The target filesystem should now be unreferenced
if ! zfs destroy -f "${fullfs}"; then
return 1
fi
# Destroy the origin snapshot, which should be unreferenced
if [ ! -z "${parent}" ]; then
if ! zfs destroy -f ${parent}; then
return 1
fi
fi
fi
}
do_destroy() {
arch=$1
branch=$2
buildid=$3
builddir=$4
shift 4
buildid=$(resolve ${pb} ${arch} ${branch} ${buildid})
if [ -z "${buildid}" ]; then
echo "Invalid build ID ${buildid}"
exit 1
fi
latestid=$(resolve ${pb} ${arch} ${branch} latest)
if [ "${buildid}" = "${latestid}" ]; then
echo "Cannot destroy latest build"
exit 1
fi
destroy_fs a/portbuild/${arch} ${buildid} /ports || exit 1
destroy_fs a/portbuild/${arch} ${buildid} /src || exit 1
destroy_fs a/portbuild/${arch} ${buildid} || exit 1
rmdir ${builddir}
}
# Run a command as root if running as user
# Authentication and command validation is taken care of by buildproxy
proxy_root() {
cmd=$1
arch=$2
branch=$3
buildid=$4
builddir=$5
shift 5
args=$@
id=$(id -u)
if [ ${id} != "0" ]; then
/var/portbuild/scripts/buildproxy-client "build ${cmd} ${arch} ${branch} ${buildid} ${args}"
error=$?
if [ ${error} -eq 254 ]; then
echo "Proxy error"
fi
else
eval "do_${cmd} ${arch} ${branch} ${buildid} ${builddir} ${args}"
error=$?
fi
exit ${error}
}
# Run a command as the ports-${arch} user if root
proxy_user() {
cmd=$1
arch=$2
branch=$3
buildid=$4
builddir=$5
shift 5
args=$@
id=$(id -u)
if [ ${id} != "0" ]; then
eval "do_${cmd} ${arch} ${branch} ${buildid} \"${builddir}\" ${args}"
error=$?
else
su ports-${arch} -c "/var/portbuild/scripts/build ${cmd} ${arch} ${branch} ${buildid} \"${builddir}\" ${args}"
error=$?
fi
exit ${error}
}
usage () {
echo "usage: build <command> <arch> <branch> [<buildid>] [<options> ...]"
exit 1
}
##################
if [ $# -lt 3 ]; then
usage
fi
cmd=$1
arch=$2
branch=$3
shift 3
. ${pb}/${arch}/portbuild.conf
. ${pb}/scripts/buildenv
pbab=${pb}/${arch}/${branch}
validate_env ${arch} ${branch} || exit 1
# Not every command requires a buildid as arg
if [ $# -ge 1 ]; then
buildid=$1
shift 1
# Most commands require a buildid that is valid on the server. The
# exception is "cleanup" which is cleaning up a client build that may
# already be destroyed on the server.
case "$cmd" in
cleanup)
# Resolve symlinks but don't bail if the build doesn't exist.
newbuildid=$(resolve ${pb} ${arch} ${branch} ${buildid})
if [ ! -z "${newbuildid}" -a "${newbuildid}" != "${buildid}" ]; then
echo "Resolved ${buildid} to ${newbuildid}"
buildid=${newbuildid}
builddir=$(realpath ${pbab}/builds/${buildid}/)
# We can't rely on buildenv for this code path
fi
;;
create)
# XXX some way to avoid the latest/previous dance?
if [ "${buildid}" = "latest" ]; then
buildid=$(now)
elif [ "${buildid}" = "previous" ]; then
echo "Use build clone latest instead"
exit 1
fi
# We can't rely on buildenv for this code path
;;
*)
newbuildid=$(resolve ${pb} ${arch} ${branch} ${buildid})
if [ -z "${newbuildid}" ]; then
echo "Build ID ${buildid} does not exist"
exit 1
fi
if [ ${newbuildid} != ${buildid} ]; then
echo "Resolved ${buildid} to ${newbuildid}"
buildid=${newbuildid}
fi
builddir=$(realpath ${pbab}/builds/${buildid}/)
buildenv ${pb} ${arch} ${branch} ${builddir}
;;
esac
fi
# Unprivileged commands
case "$cmd" in
list)
do_list ${arch} ${branch} $@
;;
create)
# XXX some way to avoid the latest/previous dance?
if [ -z "${buildid}" ]; then
buildid=$(now)
else
buildid=${buildid%/}
fi
# note: the directory must not exist yet
builddir=$(realpath ${pbab}/builds)/${buildid}
if [ -d ${builddir} ]; then
echo "Can't create ${builddir}, it already exists"
exit 1
fi
buildenv ${pb} ${arch} ${branch} ${builddir}
proxy_root create ${arch} ${branch} ${buildid} ${builddir} $@
;;
clone)
if [ -z "${buildid}" ]; then
usage
fi
proxy_root clone ${arch} ${branch} ${buildid} ${builddir} $@
;;
portsupdate)
if [ -z "${buildid}" ]; then
usage
fi
proxy_root portsupdate ${arch} ${branch} ${buildid} ${builddir} $@
;;
srcupdate)
if [ -z "${buildid}" ]; then
usage
fi
proxy_root srcupdate ${arch} ${branch} ${buildid} ${builddir} $@
;;
cleanup)
if [ -z "${buildid}" ]; then
usage
fi
# builddir may be null if cleaning up a destroyed build
proxy_user cleanup ${arch} ${branch} ${buildid} "${builddir}" $@
;;
upload)
if [ -z "${buildid}" ]; then
usage
fi
proxy_user upload ${arch} ${branch} ${buildid} ${builddir} $@
;;
destroy)
if [ -z "${buildid}" ]; then
usage
fi
proxy_root destroy ${arch} ${branch} ${buildid} ${builddir} $@
;;
*)
echo "build: invalid command: $cmd"
exit 1
;;
esac
|