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#!/usr/bin/env bash
# Copyright (C) 2018 Luke Shumaker
# Copyright (C) 2023-2024 Umorpha Systems
# SPDX-License-Identifier: AGPL-3.0-or-later
declare -r NAME=osi-mk
declare -r VERSION=20231023
# Why is this different than mkosi[1]?
#
# - mkosi claims to be "legacy-free"--but they call everything that's
# not systemd "legacy"; that clearly won't do for creating OpenRC
# images.
#
# - mkosi claims to be "legacy-free", only supporting GPT
# disk-labels--but btrfs can be booted directly, without a separate
# disk-label, or a separate ESP partition. To a btrfs disk, GPT/ESP
# is legacy.
#
# - Using a raw btrfs disk means that it can easily be mounted without
# first dissecting the disk-label.
#
# [1]: https://github.com/systemd/mkosi
set -euE -o pipefail
shopt -s expand_aliases
shopt -s extglob
install_prefix="$(realpath --logical --canonicalize-missing -- "${BASH_SOURCE[0]}/../..")"
readonly install_prefix
source "${install_prefix}/lib/osi.sh"
source "${install_prefix}/lib/argparse.sh"
# Module-facing functions ######################################################
loaded_modules=()
load_module() {
local module
if ! [[ -f $1 ]]; then
argparse:error 'Module does not exist: %s' "$1"
return
fi
module="$(realpath -- "$1")"
if osi.sh:in_array "$module" "${loaded_modules[@]}"; then
return 0
fi
loaded_modules+=("$module")
# shellcheck source=/dev/null
source "$1"
}
# Internal functions ###########################################################
beg_indent() {
exec 8> >(
osi.sh:printf -v prefix -- "$@"
# shellcheck disable=SC2154 # false-positive, doesn't understand `osi.sh:printf -v`
"${install_prefix}/lib/indent" "$NAME [$prefix] "
)
_indent_pid=$!
}
alias end_indent=' <&- >&8; exec 8<&-; wait $_indent_pid'
normalize_size() {
local size ref_file
size=$1
ref_file=$2
if [[ $size =~ ^[0-9]+$ ]]; then
echo "$size"
return
fi
# Use truncate(1) to do this. It's a little gross, but
# because TMPDIR is likely on tmpfs, it's time-cheap, and
# because of sparse files, it's space-cheap.
local tmpfile
tmpfile=$(mktemp -t -- "${0##*/}.size.XXXXXXXXXX")
trap "rm -- ${tmpfile@Q}" EXIT
case "$size" in
'+'*|'-'*|'<'*|'>'*|'/'*|'%'*)
truncate --reference="$ref_file" --size="$size" -- "$tmpfile";;
*)
truncate --size="$size" -- "$tmpfile";;
esac
stat --format='%s' -- "$tmpfile"
}
# Built-in hooks ###############################################################
osi-mk:genfstab() {
local arg_mountpoint=$1
{
# This header mimics the stock fstat from 'filesystem'.
echo '# Static information about the filesystems.'
echo '# See fstab(5) for details.'
echo
{
# This doesn't quite mimic the header from 'filesystem'
#
# - I swapped "file system" for "device", for clarity,
# and so that it's one word for `column -t`.
# - I swapped "pass" for "fsck", for clarity.
# - I removed the space after the "#", so it works with
# `column -t`.
echo '#<device> <mountpoint> <type> <options> <dump> <fsck>'
if type format_genfstab:"$arg_fmt" &>/dev/null; then
format_genfstab:"$arg_fmt" "$arg_mountpoint"
else
genfstab -t uuid "$arg_mountpoint" | grep '^[#]' | awk '$3 != "swap"'
fi
} | column -t
} >"${arg_mountpoint}/etc/fstab"
}
osi-mk:directories() {
local arg_mountpoint=$1
local spec outside inside
for spec in "${arg_directories[@]}"; do
outside="${spec%:*}"
inside="${spec#"${outside}:"}"
# TODO: maybe rsync would be better?
mkdir -p -- "$(dirname -- "${arg_mountpoint}/${inside}")"
osi.sh:print 'Copying %q to %q:%q' "$outside" "$arg_file" "$inside"
cp -aT --no-preserve=ownership -- "$outside" "${arg_mountpoint}/${inside}"
done
}
osi-mk:hostname() {
local arg_mountpoint=$1
echo "${arg_conf[hostname]}" >"$arg_mountpoint/etc/hostname"
}
osi-mk:machine-id() {
local arg_mountpoint=$1
case "${arg_conf[machine-id]}" in
auto) :;; # leave it alone
none) rm -f -- "$arg_mountpoint/etc/machine-id";;
*) echo "${arg_conf[machine-id]}" >"$arg_mountpoint/etc/machine-id";;
esac
}
osi-mk:mkinitcpio() {
local arg_mountpoint=$1
osi.sh:print 'Configuring mkinitcpio to include all drivers'
mkdir -p -- "$arg_mountpoint/etc/mkinitcpio.conf.d"
cat >"$arg_mountpoint/etc/mkinitcpio.conf.d/osi-mk.conf" <<'EOF'
#!/hint/bash
# Copyright (C) 2023 Umorpha Systems
# SPDX-License-Identifier: AGPL-3.0-or-later
# Remove 'autodetect' from HOOKS; include all drivers.
for ((i=0; i<${#HOOKS[@]}; i++)); do
if [[ ${HOOKS[i]} == autodetect ]]; then
HOOKS=("${HOOKS[@]:0:i}" "${HOOKS[@]:i+1}")
fi
done
EOF
}
osi-mk:grub-install() {
local arg_mountpoint=$1
local target=${arg_conf[bootloader]#grub-}
if [[ $target == arm-uboot-* ]]; then
target=arm-uboot
fi
# shellcheck disable=SC2016
arch-chroot -- "$arg_mountpoint" sh -c \
"grub-install --target=${target} "'"$(awk '\''$2 == "/" { print $1 }'\'' </proc/mounts)"'
}
osi-mk:grub-mkconfig() {
local arg_mountpoint=$1
arch-chroot -- "$arg_mountpoint" grub-mkconfig -o /boot/grub/grub.cfg
}
osi-mk:source-date-epoch() {
local arg_mountpoint=$1
# Backdate package install dates to 1 second before SOURCE_DATE_EPOCH.
local file
for file in "$arg_mountpoint"/var/lib/pacman/local/*/desc; do
awk -v maxdate="$((SOURCE_DATE_EPOCH-1))" '
BEGIN{
x=0
}
$0 == "%INSTALLDATE%" {
x=2
}
{
if (x == 1 && $0 > maxdate) {
print maxdate
} else {
print
}
x--
}
' <"$file" >"$file.tmp"
mv -T -- "$file.tmp" "$file"
touch --date="@$((SOURCE_DATE_EPOCH-1))" -- "$file"
done
# Backdate pacman.log to 1 second before SOURCE_DATE_EPOCH.
if [[ -f "$arg_mountpoint/var/log/pacman.log" ]]; then
local old new
old='^\[....-..-..T..:..:..[-+]....]'
new="[$(TZ=UTC date --date="@$((SOURCE_DATE_EPOCH-1))" --iso-8601=seconds | sed 's/:00$/00/')]"
sed -i "s/$old/$new/" -- "$arg_mountpoint/var/log/pacman.log"
touch --date="@$((SOURCE_DATE_EPOCH-1))" -- "$arg_mountpoint/var/log/pacman.log"
fi
# Backdate file timestamps to SOURCE_DATE_EPOCH.
if "${format_is_block["$arg_fmt"]}" || ! "${format_after_clamps_mtime["$arg_fmt"]}"; then
# Ugg, it's lame that `find` can't find files newer than a
# timestamp without using a temporary file.
touch --date="@$SOURCE_DATE_EPOCH" -- "$arg_mountpoint/.source_date_epoch"
find "$arg_mountpoint" -xdev -depth \
-newer "$arg_mountpoint/.source_date_epoch" \
-exec touch --no-dereference --date="@$SOURCE_DATE_EPOCH" -- {} +
rm -f -- "$arg_mountpoint/.source_date_epoch"
touch --date="@$SOURCE_DATE_EPOCH" -- "$arg_mountpoint/"
fi
}
# Main #########################################################################
declare -a formats=()
declare -A format_options=()
declare -A format_is_block=()
declare -A format_wants_tmpfs=()
declare -A format_after_clamps_mtime=()
source "${install_prefix}/lib/mk/format-dir.sh"
source "${install_prefix}/lib/mk/format-tar.sh"
source "${install_prefix}/lib/mk/format-btrfs.sh"
source "${install_prefix}/lib/mk/format-erofs.sh"
main() {
# argparse specifications ##############################################
#
# There got to be enough args with enough validation logic
# that the declare/parse/set/validate locations were all far
# enough apart that it was hard to maintain.
#
# So I factored out an argparse.sh library, so that I could
# keep the logic for a given argument close to itself.
#
# Please don't hate me for failing to KISS or remember that
# YAGNI; please trust that I did actually "NI".
opt_specs+=(': --inside : MOUNTPOINT : internal-use only')
local arg_mountpoint=
opt_visit:inside() { argparse:setmode inside; arg_mountpoint=$1; }
opt_specs+=('-e : --edit : [BASE.img] : edit an existing image')
local arg_edit=false
local arg_edit_base=''
opt_visit:edit() { arg_edit=true; arg_edit_base=$1; }
opt_final:edit() {
if $arg_edit; then
# We set arg_file below in opt_positional().
if ! [[ -e ${arg_edit_base:-$arg_file} ]]; then
argparse:error 'Image must already exist to --edit: %s' "${arg_edit_base:-$arg_file}"
fi
fi
}
opt_specs+=(': --disorderfs : : use disorderfs')
local arg_disorderfs=false
opt_visit:disorderfs() { arg_disorderfs=true; }
opt_specs+=('')
opt_specs+=('-d : --directory : OUTSIDE\:INSIDE : include the given directory')
local arg_directories=()
opt_visit:directory() {
if ! [[ -d "${1%:*}" ]]; then
argparse:error 'Directory does not exist: %s' "${1%:*}"
return
fi
arg_directories+=("$1")
}
opt_specs+=('-m : --module : MOD.sh : include the given module')
local arg_modules=()
opt_visit:module() {
if ! [[ -f $1 ]]; then
argparse:error 'Module does not exist: %s' "$1"
return
fi
arg_modules+=("$1")
}
opt_specs+=('-p : --package : PKGNAME : include the given package (or group)')
local arg_packages=()
opt_visit:package() { arg_packages+=("$1"); }
opt_specs+=('-P : --package-file : PKG.pkg.tar.xz : include the given package file')
local arg_package_files=()
opt_visit:package-file() {
if ! [[ -f "$1" ]]; then
argparse:error 'Package file does not exist: %s' "$1"
return
fi
if [[ "$1" != *.pkg.tar?(.!(sig|*.*)) ]]; then
argparse:error 'Package filename does not look like a package: %s' "$1"
return
fi
arg_package_files+=("$1")
}
opt_specs+=('-A : --arch : ARCH : set the CPU architecture')
local arg_arch=
arg_arch="$(uname -m)"
opt_visit_early:arch() {
if ! [[ -f "/usr/share/pacman/defaults/pacman.conf.$1" ]]; then
argparse:error 'Invalid --conf=arch= value: %q' "$1"
return
fi
arg_arch=$1
}
opt_visit:arch() { :; }
opt_specs+=(': --pkgconf : KEY=VAL : set which provider of a virtual package to use')
declare -A arg_pkgconf=(
[initramfs]=mkinitcpio
[dbus-units]=dbus-broker-units
)
opt_visit:pkgconf() {
local key val
key="${1%%=*}"
val="${1#*=}"
arg_pkgconf["$key"]="$val"
}
arg_fmt=btrfs
opt_specs+=(": --fmt : FORMAT : set which disk format (${formats[*]}) to use (default: ${arg_fmt})")
opt_visit_early:fmt() {
if ! osi.sh:in_array "$1" "${formats[@]}"; then
argparse:error 'Unrecognized --fmt= value: %q' "$1"
return
fi
arg_fmt=$1
}
opt_visit:fmt() { :; }
opt_specs+=(': --fmtconf : KEY=VAL : set a format-specifc config option')
declare -A arg_fmtconf=()
opt_visit:fmtconf() {
local key val
key="${1%%=*}"
val="${1#*=}"
local valid_format_options
IFS=' ' read -r -a valid_format_options <<<"${format_options["$arg_fmt"]}"
if ! osi.sh:in_array "$key" "${valid_format_options[@]}"; then
argparse:error '--fmt=%s does not accept --fmtconf=%s=' "$arg_fmt" "$key"
return
fi
arg_fmtconf["$key"]="$val"
}
opt_final:fmtconf() {
if "${format_is_block["$arg_fmt"]}" && ! $arg_edit && [[ -z ${arg_fmtconf[size]:-} ]]; then
argparse:error '--fmt=%s requires specifying --fmtconf=size= when creating a new image' "$arg_fmt"
fi
if type format_checkconf:"$arg_fmt" &>/dev/null; then
format_checkconf:"$arg_fmt"
fi
}
opt_specs+=(': --conf : KEY=VAL : set an osi-mk config option')
declare -A arg_conf=(
[bootloader]='' # default is set in opt_final:conf()
[genfstab]='true'
[machine-id]='auto'
[hostname]=''
[SOURCE_DATE_EPOCH]=''
)
if [[ "${SOURCE_DATE_EPOCH:-}" =~ ^([0-9]+|auto)$ ]]; then
arg_conf[SOURCE_DATE_EPOCH]="$SOURCE_DATE_EPOCH"
arg_orig=(--conf=SOURCE_DATE_EPOCH="${arg_conf[SOURCE_DATE_EPOCH]}" "${arg_orig[@]}")
fi
opt_visit:conf() {
local key val
key="${1%%=*}"
val="${1#*=}"
case "$key" in
bootloader)
case "$val" in
# This is the list as of GRUB 2.12-1.parabola1
grub-i386-pc) :;;
grub-i386-efi) :;;
grub-i386-emu) :;;
grub-i386-xen) :;;
grub-i386-qemu) :;;
grub-i386-ieee1275) :;;
grub-i386-coreboot) :;;
grub-i386-multiboot) :;;
grub-x86_64-efi) :;;
grub-x86_64-emu) :;;
grub-x86_64-xen) :;;
grub-arm-emu) :;;
grub-arm-uboot) :;;
grub-arm-uboot-am335x_bone) :;;
grub-arm-uboot-omap3_beagle) :;;
grub-arm-uboot-omap3_beagle_xm) :;;
grub-arm-uboot-omap3_beagle_xm_ab) :;;
grub-arm-uboot-udoo) :;;
none) :;;
*) argparse:error 'Unrecognized --conf=bootloader= value: %q' "$val"; return;;
esac
case "$arg_arch" in
i686)
case "$val" in
grub-i386-*) :;;
grub-*) argparse:error 'Invalid GRUB platform for CPU architecture: %q %q' "$arg_arch" "$val"; return;;
esac
;;
x86_64)
case "$val" in
grub-i386-*) :;;
grub-x86_64-*) :;;
grub-*) argparse:error 'Invalid GRUB platform for CPU architecture: %q %q' "$arg_arch" "$val"; return;;
esac
;;
armv7h)
case "$val" in
grub-arm-*) :;;
grub-*) argparse:error 'Invalid GRUB platform for CPU architecture: %q %q' "$arg_arch" "$val"; return;;
esac
;;
esac
;;
genfstab)
case "${val,,}" in
1|t|true|y|yes) val=true;;
0|f|false|n|no) val=false;;
*) argparse:error 'Unrecognized --conf=genfstab= value: %q' "$val"; return;;
esac
;;
machine-id)
if ! [[ "$val" =~ ^(auto|none|[0-9a-f]{32})$ ]]; then
argparse:error 'Invalid --conf=machine-id= value: %q' "$val"
return
fi
;;
hostname)
:
;;
SOURCE_DATE_EPOCH)
if ! [[ "$val" =~ ^([0-9]+|auto|)$ ]]; then
argparse:error 'Invalid --conf=SOURCE_DATE_EPOCH= value: %q' "$val"
return
fi
;;
*)
argparse:error 'Unrecognized flag: --conf=%s' "$key"
return
;;
esac
arg_conf["$key"]="$val";
}
opt_final:conf() {
if [[ -z "${arg_conf[bootloader]:-}" ]]; then
case "$arg_arch" in
x86_64|i686) arg_conf[bootloader]=grub-i386-pc;;
armv7h) arg_conf[bootloader]=grub-arm-uboot;;
esac
fi
}
local arg_file
opt_positional() {
if (( $# != 1 )); then
argparse:error "Expected 1 positional argument, got %d: %s" "$#" "${*@Q}"
return
fi
arg_file=$1
if [[ "$opt_mode" != inside ]]; then
if [[ ( $arg_edit = false || -n $arg_edit_base ) && -e $arg_file ]]; then
argparse:error 'Image file already exists, refusing to overwrite: %s' "$arg_file"
fi
fi
}
# actually parse the args ##############################################
local arg_orig=("$@")
argparse outside "$@"
# main ################################################################
case "$opt_mode" in
error)
osi.sh:print "Try '%q --help' for more information" "${0##*/}" >&2
return $EXIT_INVALIDARGUMENT
;;
version)
osi.sh:print "%s (osi-tools) %s" "$NAME" "$VERSION"
return $EXIT_SUCCESS
;;
help)
osi.sh:print 'Usage: %s [OPTIONS] FILENAME.img' "${0##*/}"
osi.sh:print 'Operating System Image: Make'
echo
osi.sh:print 'Create a mountable, bootable OS image.'
echo
osi.sh:print 'OPTIONS:'
echo "${opt_flaghelp}" | grep -v -e --inside
return $EXIT_SUCCESS
;;
# main code starts here
outside) # the part that runs as a normal user without the image mounted
mount_dev="$arg_file"
mount_opt=''
beg_indent 'format:before'
{
if "${format_is_block["$arg_fmt"]}"; then
if $arg_edit; then
if [[ -n $arg_edit_base ]]; then
cp -T --reflink -- "$arg_edit_base" "$arg_file"
fi
old_size=$(stat --format='%s' -- "$arg_file")
new_size=$old_size
if [[ -n ${arg_fmtconf[size]:-} ]]; then
new_size=$(normalize_size "${arg_fmtconf[size]}" "$arg_file")
fi
if (( new_size > old_size )); then
truncate --size="$new_size" -- "$arg_file"
fi
format_editfs:"$arg_fmt"
if (( new_size < old_size )); then
truncate --size="$new_size" -- "$arg_file"
fi
else
truncate --size="${arg_fmtconf[size]}" -- "$arg_file"
format_mkfs:"$arg_fmt"
fi
else
if "${format_wants_tmpfs["$arg_fmt"]}"; then
mount_dev=$(mktemp -dt -- "${0##*/}.dev.XXXXXXXXXX")
# Make our own tmpfs because $TMPDIR might be mounted
# with 'noexec' or something. Also, so we can clean it
# up without a `sudo rm -rf`.
osi.sh:sudo mount -t tmpfs tmpfs:osi-mk "$mount_dev"
trap "osi.sh:sudo umount ${mount_dev@Q}; rmdir -- ${mount_dev@Q}" EXIT
mount_opt=bind
fi
format_before:"$arg_fmt"
fi
} end_indent
arg_mountpoint=$(mktemp -dt -- "${0##*/}.mnt.XXXXXXXXXX")
r=0
osi.sh:sudo -- "${install_prefix}/bin/osi-mount" --root \
--rwdir="${TMPDIR:-/tmp}" \
--rwdir=/var/cache/pacman/pkg \
--rwdir=/etc/pacman.d/gnupg \
--options="$mount_opt" \
-- \
"$mount_dev" "$arg_mountpoint" \
"${BASH_SOURCE[0]}" --inside="$arg_mountpoint" \
"${arg_orig[@]}" || r=$?
rmdir -- "$arg_mountpoint"
if (( r != 0 )); then
return $r
fi
if ! "${format_is_block["$arg_fmt"]}"; then
beg_indent 'format:after'
{
if "${format_after_clamps_mtime["$arg_fmt"]}"; then
if [[ "${arg_conf[SOURCE_DATE_EPOCH]:-}" == auto ]]; then
local file
for file in "$mount_dev"/var/lib/pacman/local/*/desc; do
arg_conf[SOURCE_DATE_EPOCH]="$(sed -n '/^%INSTALLDATE%$/{n;p;}' -- "$file")"
break
done
fi
if [[ -n "${arg_conf[SOURCE_DATE_EPOCH]:-}" ]]; then
export SOURCE_DATE_EPOCH="${arg_conf[SOURCE_DATE_EPOCH]}"
fi
fi
format_after:"$arg_fmt"
} end_indent
fi
osi.sh:print '%s Done' "$NAME"
;;
inside) # the part that runs as root with the image mounted
osi.sh:needs_sudo
_deferred=()
_do_deferred() {
for (( i=${#_deferred[@]}-1; i >= 0; i-- )); do
eval "${_deferred[$i]}"
done
}
trap _do_deferred EXIT
defer() {
_deferred+=("$1")
}
### Load modules ###
packages=("${arg_packages[@]}")
package_files=("${arg_package_files[@]}")
pre_install=()
post_install=()
for module in "${arg_modules[@]}"; do
load_module "$module"
done
### Builtin "modules" ###
post_install+=(
10:osi-mk:machine-id
50:osi-mk:directories
)
if "${arg_conf[genfstab]}"; then
if ! $arg_edit || [[ -n $arg_edit_base ]] || [[ -n "${arg_fmtconf[fsuuid]:-}" ]]; then
post_install+=(10:osi-mk:genfstab)
fi
fi
case "${arg_conf[bootloader]}" in
grub-*)
if [[ "${arg_conf[bootloader]}" == grub-arm-uboot-* ]]; then
packages+=("grub-${arg_conf[bootloader]#grub-arm-uboot-}")
else
packages+=(grub)
fi
post_install+=(88:osi-mk:grub-mkconfig) # before 89:osi-mk:source-date-epoch
if ! $arg_edit; then
post_install+=(87:osi-mk:grub-install) # before '88:osi-mk:grub-mkconfig'
fi
;;
esac
case "${arg_conf[initramfs]:-}" in
mkinitcpio)
pre_install+=(10:osi-mk:mkinitcpio)
;;
esac
if [[ -n "${arg_conf[hostname]:-}" ]]; then
post_install+=(10:osi-mk:hostname)
fi
if [[ -n "${arg_conf[SOURCE_DATE_EPOCH]:-}" ]]; then
post_install+=(89:osi-mk:source-date-epoch)
fi
### Finalize config ###
local tmpdir
tmpdir="$(mktemp -dt "${0##*/}.XXXXXXXXXX")"
defer "rmdir -- ${tmpdir@Q}"
pacman_conf="$tmpdir/pacman.conf"
defer "rm -f -- ${pacman_conf@Q}"
if [[ -f "/usr/share/pacman/defaults/pacman.conf.$arg_arch" ]]; then
cat "/usr/share/pacman/defaults/pacman.conf.$arg_arch" >>"$pacman_conf"
else
cat >>"$pacman_conf" <<-EOF
[options]
HoldPkg = pacman glibc
Architecture = $arg_arch
CheckSpace
SigLevel = Required DatabaseOptional
LocalFileSigLevel = Optional
[libre]
Include = /etc/pacman.d/mirrorlist
[core]
Include = /etc/pacman.d/mirrorlist
[extra]
Include = /etc/pacman.d/mirrorlist
[pcr]
Include = /etc/pacman.d/mirrorlist
EOF
fi
if (( ${#package_files[@]} > 0 )); then
cat >>"$pacman_conf" <<-EOF
[osi-mk]
SigLevel = Optional TrustAll
Server = file://${tmpdir}/repo
EOF
mkdir -- "${tmpdir}/repo"
defer "rm -rf -- ${tmpdir@Q}/repo"
for file in "${package_files[@]}"; do
base="$(bsdtar xfO "$file" .PKGINFO | awk '
$1 == "pkgname" { pkgname=$3 }
$1 == "pkgver" { pkgver=$3 }
$1 == "arch" { arch=$3 }
END { print pkgname "-" pkgver "-" arch }')"
ext=".pkg.tar${file##*.pkg.tar}"
cp -Tf -- "$file" "${tmpdir}/repo/${base}${ext}"
packages+=("osi-mk/${base%-*-*-*}") # trim off '-pkgver-pkgrel-arch'
done
pushd "$tmpdir/repo" >/dev/null
repo-add osi-mk.db.tar.gz ./*.pkg.tar?(.!(sig|*.*))
popd >/dev/null
fi
cache_packages+=("${packages[@]}")
### Disorderfs ###
if $arg_disorderfs; then
orig_arg_mountpoint=$arg_mountpoint
arg_mountpoint="$tmpdir/dis"
mkdir -- "$arg_mountpoint"
disorderfs --multi-user=yes --shuffle-dirents=yes "$orig_arg_mountpoint" "$arg_mountpoint"
defer "fusermount -u ${arg_mountpoint@Q}; rmdir ${arg_mountpoint@Q}"
fi
### Download ###
beg_indent 'download:repos'
{
# Download syncdbs to the image
mkdir -p -- "$arg_mountpoint"/var/{lib/pacman,log}
pacman -r "$arg_mountpoint" --config="$pacman_conf" \
-Sy --noconfirm
} end_indent
beg_indent 'download:check-config'
{
# Validate that the user specified an answer to
# every question that pacman asks.
opt_fail=false
while read -r -a options; do
name="${options[0]%:}"
options=("${options[@]:1}")
base=${name%%[<>=]*}
if osi.sh:in_array "${arg_pkgconf["$base"]:-}" "${options[@]}" "${options[@]#*/}"; then
osi.sh:print 'inserting package %s=%s' "$name" "${arg_pkgconf["$base"]}"
if ! osi.sh:in_array "${arg_pkgconf["$base"]}" "${packages[@]#*/}"; then
packages+=("${arg_pkgconf["$base"]}")
fi
if ! osi.sh:in_array "${arg_pkgconf["$base"]}" "${cache_packages[@]#*/}"; then
cache_packages+=("${arg_pkgconf["$base"]}")
fi
else
osi.sh:error 0 "must set option '%q' to one of [%s]" "$base" "${options[*]}"
opt_fail=true
fi
done < <("${install_prefix}/lib/pacman-choices" \
-r "$arg_mountpoint" --config="$pacman_conf" \
--oneline -- "${cache_packages[@]}")
if [[ $opt_fail == true ]]; then
exit $EXIT_NOTCONFIGURED
fi
} end_indent
beg_indent 'download:packages'
{
if (( ${#cache_packages[@]} > 0 )); then # this check is important for --edit
# Download needed packages to the host cache
pacman -r "$arg_mountpoint" --config="$pacman_conf" \
-Syw --noconfirm -- "${cache_packages[@]}"
# Copy needed packages from host cache to image cache
mkdir -p -- "$arg_mountpoint"/var/cache/pacman/pkg
pacman -r "$arg_mountpoint" --config="$pacman_conf" \
-Sp --print-format='%l' -- "${cache_packages[@]}" \
| sed -n 's,^file://,,p' \
| {
while read -r file; do
echo "$file"
if [[ -f "$file.sig" ]]; then
echo "$file.sig"
fi
done \
} \
| xargs -d $'\n' -r cp -t "$arg_mountpoint/var/cache/pacman/pkg" --
fi
} end_indent
if [[ "${arg_conf[SOURCE_DATE_EPOCH]:-}" =~ ^[0-9]+$ ]]; then
osi.sh:print '%s SOURCE_DATE_EPOCH=%s' "$NAME" "${arg_conf[SOURCE_DATE_EPOCH]}"
export SOURCE_DATE_EPOCH="${arg_conf[SOURCE_DATE_EPOCH]}"
fi
### pre_install ###
while IFS=: read -r n fn; do
beg_indent 'pre_install:%s:%s' "$n" "$fn"
(
osi.sh:print Begin
"$fn" "$arg_mountpoint"
osi.sh:print End
) end_indent
done < <([[ "${#pre_install[@]}" == 0 ]] || printf '%s\n' "${pre_install[@]}" | sort)
rm -f -- "$arg_mountpoint"/var/log/pacman.log
### Install ###
beg_indent 'install'
{
local pacstrap_flags=(
-G # don't copy the host's pacman keyring
-M # don't copy the host's mirrorlist
-C "$pacman_conf"
--
"$arg_mountpoint"
--hookdir="$arg_mountpoint/etc/pacman.d/hooks" # hack around https://bugs.archlinux.org/task/49347
--needed # for --edit
)
if (( ${#packages[@]} > 0 )); then # this check is important for --edit
TMPDIR='' pacstrap "${pacstrap_flags[@]}" "${packages[@]}"
fi
if [[ -f "$arg_mountpoint/var/log/pacman.log" ]]; then
sed -i \
-e "s:${arg_mountpoint}:/mnt:g" \
-e "s:${pacman_conf}:/tmp/pacman.conf:g" \
-- "$arg_mountpoint/var/log/pacman.log"
fi
} end_indent
if [[ "${arg_conf[SOURCE_DATE_EPOCH]:-}" == auto ]]; then
# set it to 1 second after the last timestamp from any
# package (that extra second is so that post-install
# things can be timestamped after the package files).
arg_conf[SOURCE_DATE_EPOCH]=$(($({
zcat "$arg_mountpoint"/var/lib/pacman/local/*/mtree | grep -o 'time=[0-9]*' | cut -d= -f2
cat /var/lib/pacman/local/*/desc | sed -n '/^%BUILDDATE%$/{n;p;}'
} | sort -n | tail -n1) + 1))
fi
if [[ -n "${arg_conf[SOURCE_DATE_EPOCH]:-}" ]]; then
osi.sh:print '%s SOURCE_DATE_EPOCH=%s' "$NAME" "${arg_conf[SOURCE_DATE_EPOCH]}"
export SOURCE_DATE_EPOCH="${arg_conf[SOURCE_DATE_EPOCH]}"
fi
### post_install ###
while IFS=: read -r n fn; do
beg_indent 'post_install:%s:%s' "$n" "$fn"
(
osi.sh:print Begin
"$fn" "$arg_mountpoint"
osi.sh:print End
) end_indent
done < <([[ "${#post_install[@]}" == 0 ]] || printf '%s\n' "${post_install[@]}" | sort)
;;
*) osi.sh:bug 'unknown opt_mode: %s' "$opt_mode";;
esac
}
main "$@"
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