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#!/bin/bash
# Library to install software on Raspbian ARM through QEMU
#
# Copyleft 2017 by Ignacio Nunez Hernanz <nacho _a_t_ ownyourbits _d_o_t_ com>
# GPL licensed (see end of file) * Use at your own risk!
#
# More at ownyourbits.com
#
IMGNAME=$( basename "$IMGFILE" .img )_$( basename "$INSTALL_SCRIPT" .sh ).img
DBG=x
# $IMGOUT will contain the name of the last step
function launch_install_qemu()
{
local IMG=$1
local IP=$2
[[ "$IP" == "" ]] && { echo "usage: launch_install_qemu <script> <img> <IP>"; return 1; }
test -f "$IMG" || { echo "input file $IMG not found"; return 1; }
local BASE=$( sed 's=-stage[[:digit:]]==' <<< "$IMG" )
local NUM=$( sed 's=.*-stage\([[:digit:]]\)=\1=' <<< "$IMG" )
[[ "$BASE" == "$IMG" ]] && NUM=0
local NUM_REBOOTS=$( grep -c reboot "$INSTALL_SCRIPT" )
while [[ $NUM_REBOOTS != -1 ]]; do
NUM=$(( NUM+1 ))
IMGOUT="$BASE-stage$NUM"
cp -v "$IMG" "$IMGOUT" || return 1 # take a copy of the input image for processing ( append "-stage1" )
pgrep qemu-system-arm &>/dev/null && { echo -e "QEMU instance already running. Abort..."; return 1; }
launch_qemu "$IMGOUT" &
sleep 10
wait_SSH "$IP"
launch_installation_qemu "$IP" || return 1
wait
IMG="$IMGOUT"
NUM_REBOOTS=$(( NUM_REBOOTS-1 ))
done
echo "$IMGOUT generated successfully"
}
function launch_qemu()
{
local IMG=$1
test -f "$1" || { echo "Image $IMG not found"; return 1; }
test -d qemu-raspbian-network || git clone https://github.com/nachoparker/qemu-raspbian-network.git
sed -i '30s/NO_NETWORK=1/NO_NETWORK=0/' qemu-raspbian-network/qemu-pi.sh
sed -i '35s/NO_GRAPHIC=0/NO_GRAPHIC=1/' qemu-raspbian-network/qemu-pi.sh
echo "Starting QEMU image $IMG"
( cd qemu-raspbian-network && sudo ./qemu-pi.sh ../"$IMG" 2>/dev/null )
}
function ssh_pi()
{
local IP=$1
local ARGS=${@:2}
local PIUSER=${PIUSER:-pi}
local PIPASS=${PIPASS:-raspberry}
local SSH=( ssh -q -o UserKnownHostsFile=/dev/null\
-o StrictHostKeyChecking=no\
-o ServerAliveInterval=20\
-o ConnectTimeout=20\
-o LogLevel=quiet )
type sshpass &>/dev/null && local SSHPASS=( sshpass -p$PIPASS )
if [[ "${SSHPASS[@]}" == "" ]]; then
${SSH[@]} ${PIUSER}@$IP $ARGS;
else
${SSHPASS[@]} ${SSH[@]} ${PIUSER}@$IP $ARGS
local RET=$?
[[ $RET -eq 5 ]] && { ${SSH[@]} ${PIUSER}@$IP $ARGS; return $?; }
return $RET
fi
}
function wait_SSH()
{
local IP=$1
echo "Waiting for SSH to be up on $IP..."
while true; do
ssh_pi "$IP" : && break
sleep 1
done
echo "SSH is up"
}
function launch_installation()
{
local IP=$1
[[ "$INSTALLATION_CODE" == "" ]] && { echo "Need to run config first" ; return 1; }
[[ "$INSTALLATION_STEPS" == "" ]] && { echo "No installation instructions"; return 1; }
local PREINST_CODE="
set -e$DBG
sudo su
set -e$DBG
"
echo "Launching installation"
echo -e "$PREINST_CODE\n$INSTALLATION_CODE\n$INSTALLATION_STEPS" | ssh_pi "$IP" || { echo "Installation to $IP failed" && return 1; }
}
function launch_installation_qemu()
{
local IP=$1
[[ "$NO_CFG_STEP" != "1" ]] && local CFG_STEP=configure
[[ "$NO_CLEANUP" != "1" ]] && local CLEANUP_STEP=cleanup
[[ "$NO_HALT_STEP" != "1" ]] && local HALT_STEP="nohup halt &>/dev/null &"
local INSTALLATION_STEPS="
install
$CFG_STEP
$CLEANUP_STEP
$HALT_STEP
"
launch_installation "$IP"
}
function launch_installation_online()
{
local IP=$1
[[ "$NO_CFG_STEP" != "1" ]] && local CFG_STEP=configure
local INSTALLATION_STEPS="
install
$CFG_STEP
"
launch_installation "$IP"
}
function copy_to_image()
{
local IMG=$1
local DST=$2
local SRC=${@: 3 }
local SECTOR
local OFFSET
SECTOR=$( fdisk -l "$IMG" | grep Linux | awk '{ print $2 }' )
OFFSET=$(( SECTOR * 512 ))
[ -f "$IMG" ] || { echo "no image"; return 1; }
mkdir -p tmpmnt
sudo mount "$IMG" -o offset="$OFFSET" tmpmnt || return 1
sudo cp -v "$SRC" tmpmnt/"$DST" || return 1
sudo umount -l tmpmnt
rmdir tmpmnt &>/dev/null
}
function deactivate_unattended_upgrades()
{
local IMG=$1
local SECTOR
local OFFSET
SECTOR=$( fdisk -l "$IMG" | grep Linux | awk '{ print $2 }' )
OFFSET=$(( SECTOR * 512 ))
[ -f "$IMG" ] || { echo "no image"; return 1; }
mkdir -p tmpmnt
sudo mount "$IMG" -o offset="$OFFSET" tmpmnt || return 1
sudo rm -f tmpmnt/etc/apt/apt.conf.d/20nextcloudpi-upgrades
sudo umount -l tmpmnt
rmdir tmpmnt &>/dev/null
}
function download_resize_raspbian_img()
{
local SIZE=$1
local IMGFILE=$2
local IMG=raspbian_lite_latest
test -f "$IMGFILE" && \
echo -e "INFO: $IMGFILE already exists. Skipping download ..." && return 0
test -f $IMG.zip || \
wget https://downloads.raspberrypi.org/$IMG -O $IMG.zip || return 1
unzip -o $IMG.zip && \
mv *-raspbian-*.img "$IMGFILE" && \
qemu-img resize -f raw "$IMGFILE" +"$SIZE" && \
return 0
}
function pack_image()
{
local IMGOUT="$1"
local IMGNAME="$2"
local TARNAME=$( basename $IMGNAME .img ).tar.bz2
echo "copying $IMGOUT → $IMGNAME"
cp "$IMGOUT" "$IMGNAME" || return 1
echo "packing $IMGNAME → $TARNAME"
tar -I pbzip2 -cvf "$TARNAME" "$IMGNAME" &>/dev/null && \
echo -e "$TARNAME packed successfully"
}
function create_torrent()
{
[[ "$1" == "" ]] && { echo "No directory specified"; exit 1; }
test -d "$1" || { echo "$1 not found or is not a directory" ; exit 1; }
md5sum "$1"/*.bz2 > "$1"/md5sum
createtorrent -a udp://tracker.opentrackr.org -p 1337 -c "NextCloudPi. Nextcloud for Raspberry Pi image" "$1" "$1".torrent
}
function generate_changelog()
{
git log --graph --oneline --decorate \
--pretty=format:"[%<(13)%D](https://github.com/nextcloud/nextcloudpi/commit/%h) (%ad) %s" --date=short | \
grep 'tag: v' | \
sed '/HEAD ->\|origin/s|\[.*\(tag: v[0-9]\+\.[0-9]\+\.[0-9]\+\).*\]|[\1]|' | \
sed 's|* \[tag: |\n[|' > changelog.md
}
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