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#!/usr/bin/env bash
#
# Script to build Kogaion Linux packages in a clean squashfs + overlayfs chroot
# Using predefined targets : kernel.target, libs.target, x11.target, sound.target, artwork.target etc
# Targets are passed as arguments, and will remain private...for now (not all of them are stable yet)
# Author : V3n3RiX @ RogentOS
# Deps : squashfs + overlayfs kernel support
# Todo : squashfs checksum verification
# : add squashfs portage tree
# : sync build.git
# : sync overlays
# : setup profiles
# : auto push built packages to repos (maybe, really needed?!?)
lowerdir="kogaiondevelx64"
upperdir="upperdirx64"
overlaydir="overlaydirx64"
env_user="root"
env_targets="$@"
env_build_cmd="emerge -av "$env_targets""
envprepare () {
# create the directories needed for squashfs + overlayfs mount
mkdir "$lowerdir"
mkdir "$upperdir"
mkdir "$overlaydir"
}
envstart () {
# mount ro squashfs + add rw overlayfs layer to enable clean package building
mount -t squashfs "$lowerdir".squashfs "$lowerdir"
mount -t overlayfs -o lowerdir="$lowerdir",upperdir="$upperdir" overlayfs "$overlaydir"
mount -o bind /proc "$overlaydir"/proc
mount -o bind /sys "$overlaydir"/sys
mount -o bind /dev "$overlaydir"/dev
mount -o bind /dev/pts "$overlaydir"/dev/pts
mount -o bind /dev/shm "$overlaydir"/dev/shm
mount -o bind /tmp "$overlaydir"/tmp
}
envstop () {
# umount squashfs + overlayfs chroot
umount -l "$overlaydir"/proc
umount -l "$overlaydir"/sys
umount -l "$overlaydir"/dev/pts
umount -l "$overlaydir"/dev/shm
umount -l "$overlaydir"/dev
umount -l "$overlaydir"/tmp
umount -l "$overlaydir"
umount -l "$lowerdir"
}
envbuild () {
# build packages in squashfs + overlayfs chroot
chroot "$overlaydir" su - "$env_user" -c "$env_build_cmd"
}
envchroot() {
# enter squashfs + overlayfs chroot to push packages, or debug build errors
echo -e ""
echo -e "#################################################################"
echo -e "# ENTERING CHROOT ENV FOR YOU TO PUSH BUILT PACKAGES #"
echo -e "# OR TO FIX EVENTUAL BUILD ERRORS #"
echo -e "#################################################################"
echo -e "# !!! WARNING !!! WARNING !!! WARNING !!! #"
echo -e "#################################################################"
echo -e "# EXITING NOW WILL DESTROY ALL YOUR WORK #"
echo -e "# DO NOT EXIT CHROOT UNTIL ALL PACKAGES ARE PUSHED TO REPOS #"
echo -e "# OR, IN CASE OF BUILD FAILURES, UNTIL ALL FIXES ARE COMMITED #"
echo -e "#################################################################"
echo -e "# !!! WARNING !!! WARNING !!! WARNING !!! #"
echo -e "#################################################################"
echo -e ""
echo -e ""
chroot "$overlaydir" su - "$env_user"
}
envcleanup () {
# cleanup build environment
rm -rf "$overlaydir"
rm -rf "$upperdir"
rm -rf "$lowerdir"
}
main () {
envprepare
envstart
envbuild
envchroot
envstop
envcleanup
}
main
exit 0
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