dtrfs/creator_functions.sh
2024-11-07 21:21:47 +02:00

146 lines
3.5 KiB
Bash

#!/bin/bash
echo_cyan() {
echo -e "\033[0;36m$1\033[0m"
}
echo_blue() {
echo -e "\033[0;34m$1\033[0m"
}
echo_yellow() {
echo -e "\033[0;33m$1\033[0m"
}
echo_red() {
echo -e "\033[0;31m$1\033[0m"
}
create_dirs() {
rm -rf "$ROOT" 2>/dev/null
mkdir -p "$ROOT" "${ROOT}/usr/bin/"
mkdir -p ${ROOT}/usr/bin
mkdir -p ${ROOT}/usr/lib
mkdir -p ${ROOT}/dev
mkdir -p ${ROOT}/proc
mkdir -p ${ROOT}/run
mkdir -p ${ROOT}/tmp
mkdir -p ${ROOT}/var
ln -s usr/bin ${ROOT}/bin
ln -s usr/bin ${ROOT}/sbin
ln -s usr/lib ${ROOT}/lib
ln -s usr/lib ${ROOT}/lib64
ln -s lib ${ROOT}/usr/lib64
ln -s bin ${ROOT}/usr/sbin
ln -s ../run ${ROOT}/var/run
}
# Installs a library. Expects absolute path.
install_dep() {
local lib="$1"
[[ -f "$lib" ]] || {
echo "Did not find library at path: $lib"
exit 1
}
[[ -f "${ROOT}${lib}" ]] || {
mkdir -p $(dirname "${ROOT}${lib}")
echo_blue "Adding dependency: $lib"
cp "$lib" "${ROOT}${lib}"
}
}
# Expects to receive the absolute path as the full argument.
# Use `which binary_name` if it's in your path.
# Installs to /usr/bin
install_binary() {
local binary="$1" lib=''
[[ -f "$binary" ]] || {
echo_red "Did not find binary at path: $binary"
exit 1
}
echo_blue "Adding binary: $binary"
cp "$binary" "${ROOT}/usr/bin/"
ldd_deps="$(ldd "$binary")"
if [[ $ldd_deps == *"not a dynamic executable"* ]]; then
return 0
fi
while read -r lib; do
install_dep "$lib"
done <<< "$( echo "$ldd_deps" | grep -F ' => ' | awk '{ print $3 }' )"
}
install_kmod() {
echo_cyan "Installing kmod (depmod, insmod, lsmod, modinfo, modprobe, rmmod)..."
install_binary /usr/bin/kmod || return 1
ln -s kmod ${ROOT}/usr/bin/lsmod
ln -s kmod ${ROOT}/usr/bin/rmmod
ln -s kmod ${ROOT}/usr/bin/insmod
ln -s kmod ${ROOT}/usr/bin/modinfo
ln -s kmod ${ROOT}/usr/bin/modprobe
ln -s kmod ${ROOT}/usr/bin/depmod
}
install_busybox() {
echo_cyan "Installing busybox..."
[[ -f "$BUSYBOX_PATH" ]] || {
echo_red "Did not find busybox at $BUSYBOX_PATH"
echo_red "Please compile or download busybox. You can also change the path."
exit 1
}
install_binary "$BUSYBOX_PATH" || return 1
for applet in $($BUSYBOX_PATH --list); do
ln -s busybox "${ROOT}/usr/bin/$applet"
done
}
install_init_script() {
cp ../init.sh ${ROOT}/init
cp ../init_functions.sh ${ROOT}/
}
install_module() {
local module="$1"
echo "modprobe $module" >> "${ROOT}/load_modules.sh"
_install_module "$module"
}
_install_module() {
local module="$1" depends='' dep='' filename='' filenames=''
filenames="$( modinfo -k $KERNEL $module | grep '^filename:' | awk '{ print $2 }' )"
[[ "$filenames" == "(builtin)" ]] && {
echo_yellow "Module $module is builtin. Installation not needed."
return 0
}
while read -r filename; do
[[ -z $filename ]] && continue
install_dep "$filename"
done <<< "$( echo "$filenames" )"
depends="$( \
modinfo -k $KERNEL $module |
grep '^depends:' | awk '{ print $2 }' | sed 's/,/\n/g';
modinfo -k $KERNEL $module | grep '^softdep:' | awk '{ print $3 }'
)"
while read -r dep; do
[[ -z $dep ]] && continue
_install_module "$dep"
done <<< "$( echo "$depends" )"
}
create_archive() {
local archive="detee-$(hostnamectl hostname)-${KERNEL}.cpio.gz"
echo_cyan "Creating archive $archive"
echo $archive > .archive_name
my_location="$(pwd)"
cd ${ROOT}
find . | cpio -o -H newc | gzip \
> "${my_location}/detee-$(hostnamectl hostname)-${KERNEL}.cpio.gz"
cd $my_location
}