libdevuansdk/zlibs/helpers

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#!/usr/bin/env zsh
# Copyright (c) 2016-2017 Dyne.org Foundation
# libdevuansdk is maintained by Ivan J. <parazyd@dyne.org>
#
# This file is part of libdevuansdk
#
# This source code is free software: you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation, either version 3 of the License, or
# (at your option) any later version.
#
# This software is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this source code. If not, see <http://www.gnu.org/licenses/>.
## helper functions that make my life easier
vars+=(loopdevice)
build_image_dist() {
fn build_image_dist
req=(arch size parted_type)
if [[ $parted_type = gpt ]]; then
req+=(gpt_boot gpt_root)
elif [[ $parted_type = dos ]]; then
req+=(parted_root parted_boot)
fi
req+=(workdir strapdir image_name)
ckreq || return 1
notice "building complete dist image"
act "$image_name"
bootstrap_complete_base || { zerr; wrapup }
blend_preinst || { zerr; wrapup }
image_prepare_raw || { zerr; wrapup }
image_partition_raw_${parted_type} || { zerr; wrapup }
build_kernel_${arch} || { zerr; wrapup }
blend_postinst || { zerr; wrapup }
rsync_to_raw_image || { zerr; wrapup }
image_pack_dist || { zerr; wrapup }
}
build_iso_dist() {
fn build_iso_dist
req=(workdir strapdir os arch)
ckreq || return 1
notice "building complete iso image"
bootstrap_complete_base || { zerr; wrapup }
blend_preinst || { zerr; wrapup }
iso_prepare_strap || { zerr; wrapup }
build_kernel_${arch} || { zerr; wrapup }
iso_setup_isolinux || { zerr; wrapup }
iso_write_isolinux_cfg || { zerr; wrapup }
#[[ $INSTALLER = 1 ]] && iso_setup_installer || zerr
blend_postinst || { zerr; wrapup }
fill_apt_cache || { zerr; wrapup }
iso_squash_strap || { zerr; wrapup }
iso_xorriso_build || { zerr; wrapup }
}
build_vagrant_dist() {
fn build_vagrant_dist
req=(workdir strapdir os arch imageformat)
ckreq || return 1
notice "building complete vagrant image"
image_${imageformat}_as_strapdir || { zerr; wrapup }
bootstrap_complete_base || { zerr; wrapup }
vm_inject_overrides || { zerr; wrapup }
blend_preinst || { zerr; wrapup }
vm_setup_grub || { zerr; wrapup }
blend_postinst || { zerr; wrapup }
vm_umount_${imageformat} || { zerr; wrapup }
vm_vbox_setup || { zerr; wrapup }
vm_vagrant_package || { zerr; wrapup }
vm_pack_dist || { zerr; wrapup }
}
getfield() {
fn getfield $*
print "$1" | \
grep "^$2=" | \
sed -e 's:.*=\(.*\)$:\1:g' | \
sed -e 's:^"\(.*\)"$:\1:g'
}
add-user() {
fn add-user $*
local user="$1"
local pass="$2"
req=(strapdir user pass)
ckreq || return 1
notice "adding user $user:$pass"
cat <<EOF | sudo tee ${strapdir}/adduser
#!/bin/sh
useradd -m ${user}
echo "${user}:${pass}" | chpasswd
EOF
chroot-script adduser || zerr
}
devprocsys() {
fn devprocsys "$@"
local watdo="$1"
local werdo="$2"
req=(watdo werdo)
ckreq || return 1
if [[ $watdo = mount ]]; then
sudo mount -o bind /sys $werdo/sys && act "mounted sys" && \
sudo mount -t proc proc $werdo/proc && act "mounted proc" && \
sudo mount -o bind /dev $werdo/dev && act "mounted dev" && \
sudo mount -o bind /dev/pts $werdo/dev/pts && act "mounted devpts" && \
return 0
elif [[ $watdo = umount ]]; then
sudo umount $werdo/dev/pts && act "umounted devpts" && sleep 1
sudo umount $werdo/dev && act "umounted dev" && sleep 1
sudo umount $werdo/proc && act "umounted proc" && sleep 1
sudo umount $werdo/sys && act "umounted sys" && sleep 1
return 0
fi
return 1
}
wrapup() {
# a hopefully clean exit
fn wrapup
req=(strapdir)
ckreq || {
die "something is very wrong"
die "cleanup yourself, sorry"
exit 1
}
devprocsys umount $strapdir
exit 1
}
findloopdev() {
fn findloopdev
req=(workdir image_name)
ckreq || return 1
notice "finding a free loopdevice"
loopdevice=$(sudo losetup -f --show $workdir/${image_name}.img)
sudo partx -av $loopdevice || zerr
func "loopdevice: $loopdevice"
silly sleep 2
}
findfreenbd() {
fn findfreenbd
notice "looking for a free /dev/nbd"
for i in $(seq 0 8); do
grep "^/dev/nbd${i}" /proc/mounts >/dev/null || {
print "/dev/nbd${i}"
break
}
done
}
qemu_install_user() {
fn qemu_install_user
req=(qemu_bin strapdir)
ckreq || return 1
notice "installing qemu-user-static"
sudo cp $qemu_bin $strapdir/usr/bin
}
dpkgdivert() {
fn dpkgdivert "$@"
req=(watdo werdo)
local watdo="$1"
local werdo="$2"
ckreq || return 1
if [[ $watdo = on ]]; then
cat <<EOF | sudo tee ${werdo}/dpkgdivert >/dev/null
#!/bin/sh
dpkg-divert --add --local \
--divert /usr/sbin/invoke-rc.d.chroot \
--rename /usr/sbin/invoke-rc.d
cp /bin/true /usr/sbin/invoke-rc.d
echo -e "#!/bin/sh\nexit 101" > /usr/sbin/policy-rc.d
chmod +x /usr/sbin/policy-rc.d
EOF
elif [[ $watdo = off ]]; then
cat <<EOF | sudo tee ${werdo}/dpkgdivert >/dev/null
#!/bin/sh
rm -f /usr/sbin/policy-rc.d
rm -f /usr/sbin/invoke-rc.d
dpkg-divert --remove --rename /usr/sbin/invoke-rc.d
EOF
fi
chroot-script dpkgdivert || zerr
}
enableserv() {
fn enableserv "$@"
local service="$1"
req=(service strapdir)
ckreq || return 1
cat <<EOF | sudo tee -a ${strapdir}/enserv >/dev/null
#!/bin/sh
update-rc.d ${service} enable
EOF
notice "enabling $service service"
chroot-script enserv
}
disableserv() {
fn disableserv "$@"
local service="$1"
req=(service strapdir)
ckreq || return 1
cat <<EOF | sudo tee -a ${strapdir}/disserv >/dev/null
#!/bin/sh
update-rc.d ${service} disable
EOF
notice "disabling $service service"
chroot-script disserv
}
install-custdebs() {
fn install-custdebs
req=(R strapdir custom_deb_packages)
ckreq || return 1
sudo mkdir -p $strapdir/debs
sudo cp $R/extra/custom-packages/*.deb $strapdir/debs/
cat <<EOF | sudo tee ${strapdir}/install-debs >/dev/null
#!/bin/sh
cd /debs
for deb in ${custom_deb_packages}; do
dpkg -i \$deb
apt-get --yes --force-yes -f install
done
cd /
apt-get autoremove
rm -rf /debs
EOF
chroot-script install-debs
}
chroot-script() {
fn chroot-script "$@"
req=(strapdir)
ckreq || return 1
mkdir -p "$R/log"
case "x$1" in
x-d)
local script="$2"
devprocsys mount "$strapdir" || zerr
dpkgdivert on "$strapdir" || zerr
## logging
sudo sed -i "$strapdir/$script" \
-e 's@#!/bin/sh@#!/bin/sh\'$'\nset -x ; exec 2>/'$script'.log@'
notice "chrooting to execute $script..."
sudo chmod +x "$strapdir/$script" || zerr
sudo -E chroot "$strapdir" "/$script" || zerr
sudo mv -f "$strapdir/${script}.log" "$R/log/"
dpkgdivert off "$strapdir" || zerr
devprocsys umount "$strapdir" || zerr
;;
*)
local script="$1"
[[ "$APT_CACHE" = 1 ]] && { aptcache on "$strapdir/mnt" || zerr }
## logging
sudo sed -i "$strapdir/$script" \
-e 's@#!/bin/sh@#!/bin/sh\'$'\nset -x ; exec 2>/'$script'.log@'
notice "chrooting to execute $script..."
sudo chmod +x "$strapdir/$script" || zerr
sudo -E chroot "$strapdir" "/$script" || zerr
sudo mv -f "$strapdir/${script}.log" "$R/log/"
[[ "$APT_CACHE" = 1 ]] && { aptcache off "$strapdir/mnt" || zerr }
;;
esac
sudo rm -f $strapdir/$script
}
install_fake_package() {
fn install_fake_package "$@"
req=(strapdir pkgname pkgver section)
local pkgname="$1"
local pkgver="$2"
local section="$3"
ckreq || return 1
local _tmp="$strapdir/tmp"
sudo mkdir -p "$_tmp/$pkgname"
cat <<EOF | sudo tee ${_tmp}/${pkgname}/${pkgname}_${pkgver}.control >/dev/null
Section: ${section}
Priority: optional
Homepage: https://devuan.org/
Standards-Version: 3.9.6
Package: ${pkgname}
Version: ${pkgver}
Maintainer: Devuan developers <onelove@devuan.org>
Architecture: all
Description: (Fake) ${pkgname}
Dummy package used to meet some dependencies without installing the
real ${pkgname} package.
EOF
cat <<EOF | sudo tee ${strapdir}/install-fake-package >/dev/null
#!/bin/sh
cd /tmp/${pkgname}
equivs-build ${pkgname}_${pkgver}.control \
&& dpkg -i ${pkgname}_${pkgver}_all.deb || exit 1
cd /tmp
rm -rf ${pkgname}
EOF
chroot-script install-fake-package || zerr
}
blend_preinst() {
fn blend_preinst
func "not overriden"
return 0
}
blend_postinst() {
fn blend_postinst
func "not overriden"
return 0
}
aptcache() {
fn aptcache "$*"
req=(aptcachedir watdo werdo APT_CACHE)
local watdo="$1"
local werdo="$2"
ckreq || return 1
[[ $APT_CACHE = 1 ]] || return 0
case "$watdo" in
on)
act "mounting local apt cache"
sudo mount -o bind "$aptcachedir" "$werdo" || zerr
;;
off)
act "umounting local apt cache"
sudo umount "$werdo" || zerr
;;
esac
}
fill_apt_cache() {
fn fill_apt_cache
req=(strapdir APT_CACHE)
ckreq || return 1
[[ $APT_CACHE = 1 ]] || return 0
notice "filling local apt cache"
cat <<EOF | sudo tee ${strapdir}/fill-apt-cache >/dev/null
#!/bin/sh
# NOTE: do we need apt update or does it read the remote(s)?
apt-get update
apt-get install dpkg-dev
cp -afv /var/cache/apt/archives/*.deb /mnt
cd /mnt
dpkg-scanpackages . /dev/null | gzip -9c > Packages.gz
cd -
apt-get purge dpkg-dev
sed -i -e "@deb file:/mnt@d" /etc/apt/sources.list
apt-get update
EOF
chroot-script fill-apt-cache || zerr
}
silly() {
fn silly "$@"
local arg1="$1"
local arg2="$2"
## cheers mailpile!
funneh=("do not think of purple hippos"
"increasing entropy & scrambling bits"
"indexing kittens..."
"patching bugs..."
"spinning violently around the y-axis"
"warming up particle accelerator"
"this server is powered by a lemon and two electrodes"
"becoming self-aware"
"BCC-ing ALL THE SPIES!"
"all of your config settings & passwords are encrypted with AES256"
"the most common password is 123456, hopefully yours is different"
"good things come to those who wait"
"Make Free Software and be happy"
"We like volcanos, do you like volcanos?"
"Crossing out swear words..."
"Informing David Cameron of suspicious ac^H^H^H ... naaah :)"
"Abandon all hope, ye who enter here"
"Compiling bullshit bingo grid..."
"Estimating chance of asteroid hitting Earth"
"Applying coupons..."
"Backing up the entire Internet..."
"Making you wait for no reason"
"Doing nothing"
"Pay no attention to the man behind the curtain"
"You are great just the way you are"
"Supplying monkeys with typewriters"
"Swapping time and space"
"Self potato"
"god is porco"
"A million hamsters are spinning their wheels right now"
)
local rnd=$(shuf -i1-$#funneh -n 1)
act "${funneh[$rnd]}" ; [[ $arg1 = sleep ]] && sleep $arg2
}