From 5211a7173d780490e6f4410886e73e5a1e64e72d Mon Sep 17 00:00:00 2001
From: V3n3RiX <venerix@redcorelinux.org>
Date: Tue, 10 Oct 2017 21:43:07 +0100
Subject: begin the spliting of vasile

---
 src/backend/cmds      |  10 +
 src/backend/funcs     |   0
 src/backend/imports   |   3 +
 src/backend/libvasile | 608 ++++++++++++++++++++++++++++++++++++++++++++++++++
 src/backend/vars      |  36 +++
 5 files changed, 657 insertions(+)
 create mode 100644 src/backend/cmds
 create mode 100644 src/backend/funcs
 create mode 100644 src/backend/imports
 create mode 100755 src/backend/libvasile
 create mode 100644 src/backend/vars

(limited to 'src/backend')

diff --git a/src/backend/cmds b/src/backend/cmds
new file mode 100644
index 0000000..fe5e82b
--- /dev/null
+++ b/src/backend/cmds
@@ -0,0 +1,10 @@
+#!/usr/bin/env bash
+
+export local jailbinmodecmd="vasile --binmode"
+export local jailsrcmodecmd="vasile --srcmode"
+export local jaildkmscmd="vasile --dkms"
+export local jailportagecmd="emerge -kav "$jailtarget""
+export local jaildracutcmd="dracut -N -a dmsquash-live -a pollcdrom --force --kver="$kernver" /boot/"$jailramfsname""
+export local jailmkchainloadercmd="grub2-mkimage -d /usr/lib64/grub/i386-pc -o core.img -O i386-pc biosdisk part_msdos fat -p /boot/grub"
+export local jailmkx64eficmd="grub2-mkimage -d /usr/lib64/grub/x86_64-efi -o bootx64.efi -O x86_64-efi ext2 fat udf btrfs ntfs reiserfs xfs hfsplus lvm ata part_msdos part_gpt part_apple bsd search_fs_uuid normal chain iso9660 configfile help loadenv reboot cat search memdisk tar boot linux chain -p /boot/grub"
+export local jailmkia32eficmd="grub2-mkimage -d /usr/lib64/grub/i386-efi -o bootia32.efi -O i386-efi ext2 fat udf btrfs ntfs reiserfs xfs hfsplus lvm ata part_msdos part_gpt part_apple bsd search_fs_uuid normal chain iso9660 configfile help loadenv reboot cat search memdisk tar boot linux chain -p /boot/grub"
diff --git a/src/backend/funcs b/src/backend/funcs
new file mode 100644
index 0000000..e69de29
diff --git a/src/backend/imports b/src/backend/imports
new file mode 100644
index 0000000..c82b983
--- /dev/null
+++ b/src/backend/imports
@@ -0,0 +1,3 @@
+#!/usr/bin/env bash
+
+source /lib/gentoo/functions.sh
diff --git a/src/backend/libvasile b/src/backend/libvasile
new file mode 100755
index 0000000..e1678ad
--- /dev/null
+++ b/src/backend/libvasile
@@ -0,0 +1,608 @@
+#!/usr/bin/env bash
+
+# import gentoo functions
+
+source /lib/gentoo/functions.sh
+
+# generic variables
+
+export local releasename="redcore"
+export local releasetarget="desktop"
+export local releaseversion="1"
+
+# kernel version && name from inside core squashfs (we need to know this, to generate a matching kernel/live initramfs)
+
+export local kernelver="4.9.53-"$releasename"-lts"
+
+# core squahfs name and md5 checksum file
+
+export local chrootx64=""$releasename"_"$releaseversion"_core_x64.squashfs"
+export local chrootx64md5=""$chrootx64".md5"
+
+# overlay mount variables
+
+export local rodir="rodir"
+export local rwdir="rwdir"
+export local workdir="workdir" # only needed for overlayfs on kernel greather than 3.18
+export local overlaydir="overlaydir"
+
+# build variables and commands to run inside core squashfs when building packages
+
+export local chrootuser="root"
+export local chroottarget="${@:2}"
+export local chrootbuildtarget="emerge -kav "$chroottarget""
+export local chrootsrcmode="vasile --srcmode"
+
+# iso variables and commands to run inside core squahfs when making iso image
+
+export local isouser="root"
+export local isomainarch="x86_64"
+export local isobinmode="vasile --binmode"
+export local isodkms="vasile --dkms"
+export local isokernelname="kernel-genkernel-"$isomainarch"-"$kernelver""
+export local isoramfsname="initramfs-genkernel-"$isomainarch"-"$kernelver""
+export local isoramfscmd="dracut -N -a dmsquash-live -a pollcdrom --force --kver="$kernelver" /boot/"$isoramfsname""
+export local isochainloadcmd="grub2-mkimage -d /usr/lib64/grub/i386-pc -o core.img -O i386-pc biosdisk part_msdos fat -p /boot/grub"
+export local isoefix64cmd="grub2-mkimage -d /usr/lib64/grub/x86_64-efi -o bootx64.efi -O x86_64-efi ext2 fat udf btrfs ntfs reiserfs xfs hfsplus lvm ata part_msdos part_gpt part_apple bsd search_fs_uuid normal chain iso9660 configfile help loadenv reboot cat search memdisk tar boot linux chain -p /boot/grub"
+export local isoefiia32cmd="grub2-mkimage -d /usr/lib64/grub/i386-efi -o bootia32.efi -O i386-efi ext2 fat udf btrfs ntfs reiserfs xfs hfsplus lvm ata part_msdos part_gpt part_apple bsd search_fs_uuid normal chain iso9660 configfile help loadenv reboot cat search memdisk tar boot linux chain -p /boot/grub"
+
+# iso image layout variables
+
+export local bootloaderfetchpath="/tmp/bootcore"
+export local bootloaderconfigs=""$bootloaderfetchpath"/cdroot/boot"
+export local isorootdir=""$releasename"-"$releasetarget"-"$releaseversion"-"$isomainarch""
+export local isogrubdir=""$isorootdir"/boot/grub"
+export local isoefidir=""$isorootdir"/efi/boot"
+export local isorsynctarget=""$isorootdir"/rootfs"
+export local isorsyncsource="/tmp/"$isorootdir""
+export local isocdrootdir=""$isorootdir"/CDroot"
+export local isorealfsdir=""$isocdrootdir"/LiveOS"
+export local isosquashfsdir=""$isorootdir"/LiveOS"
+
+# modechange variables
+
+export local gentooportdir="/usr/ports/gentoo"
+export local redcoreportdir="/usr/ports/redcore"
+export local portconfdir="/etc/portage"
+export local portgitdir="/opt/redcore-build/conf/intel/portage"
+export local portclonedir="/opt/redcore-build"
+
+# generic functions (used for both build && iso creation)
+
+kernelconfig () {
+	# check if the host kernel has needed modules for vasile to work properly...fail to start if it doesn't
+	if [[ $(zgrep 'CONFIG_OVERLAY_FS=' /proc/config.gz) && $(zgrep "CONFIG_SQUASHFS=" /proc/config.gz) &&  $(zgrep "CONFIG_BLK_DEV_LOOP=" /proc/config.gz) ]] ; then
+		einfo "Kernel configuration seems OK, moving on"
+		sleep 1
+	else
+		eerror "Vasile needs OVERLAYFS && SQUASHFS && LOOP DEVICES to work"
+		eerror "Please rebuild the kernel with those activated to use it"
+		exit 1
+	fi
+}
+
+checkroot () {
+	# check for root privileges, needed for mount && chroot...fail to start if not root
+	if [[ "$(whoami)" != root ]] ; then
+		eerror "You're not root?...No cookies for you, go away !!!"
+		exit 1
+	fi
+}
+
+checkiflive () {
+	# check if running in live mode...fail to start if so
+	if [[ -L /dev/mapper/live-base ]] ; then
+		eerror "Running in Live mode is unsupported"
+		exit 1
+	fi
+}
+
+chrootchecksum () {
+	# check if core squashfs and md5 checksum file exists, verify core squashfs integrity against md5 checksum file
+	# fail to start if core squashfs or md5 checksum file doesn't exist, or if core squashfs fails md5 verification
+	while : true ; do
+		if [[ -f "$chrootx64" && -f "$chrootx64md5" ]] ; then
+			einfo "Squashed chroot && Checksum file found"
+			if [[ "$(md5sum -c "$chrootx64md5")" ]] ; then
+				einfo "Squashed chroot checksum passed"
+				sleep 1
+				break
+			else
+				eerror "Squashed chroot checksum failed"
+				exit 1
+			fi
+		else
+			eerror "Squashed chroot || Checksum file not found"
+			exit 1
+		fi
+	done
+}
+
+dkmsmod () {
+	checkroot
+	# build and install any 3rd party kernel modules using DKMS
+	if [[ -x $(which dkms) ]] ; then
+		for i in $(dkms status | cut -d " " -f1,2 | sed -e 's/,//g' | sed -e 's/ /\//g' | sed -e 's/://g') ; do
+			dkms install $i
+		done
+	fi
+}
+
+# build functions
+
+chrootprepare () {
+	# always start from fresh overlay mount path, if previous exists, remove it and start over
+	while : true ; do
+		if [[ ! -d "$rodir" && ! -d "$rwdir" && ! -d "$workdir" && ! -d "$overlaydir" ]] ; then
+			for i in "$rodir" "$rwdir" "$workdir" "$overlaydir" ; do
+				mkdir "$i"
+			done
+			chrootstart
+			break
+		elif [[ -d "$rodir" && -d "$rwdir" && -d "$workdir" && -d "$overlaydir" ]] ; then
+			chrootstop
+			for i in "$rodir" "$rwdir" "$workdir" "$overlaydir" ; do
+				rm -rf "$i"
+			done
+			continue
+		fi
+	done
+
+}
+
+chrootstop () {
+	# umount core squashfs overlay mount
+	umount -l "$overlaydir"/proc > /dev/null 2>&1
+	umount -l "$overlaydir"/sys > /dev/null 2>&1
+	umount -l "$overlaydir"/dev/pts > /dev/null 2>&1
+	umount -l "$overlaydir"/dev/shm > /dev/null 2>&1
+	umount -l "$overlaydir"/dev > /dev/null 2>&1
+	umount -l "$overlaydir"/tmp > /dev/null 2>&1
+	umount -l "$overlaydir"/var/cache/packages > /dev/null 2>&1
+	umount -l "$overlaydir"/var/cache/distfiles > /dev/null 2>&1
+	umount -l "$overlaydir" > /dev/null 2>&1
+	umount -l "$rodir" > /dev/null 2>&1
+}
+
+chrootstart () {
+	# mount core squashfs in overlay
+	mount -t squashfs "$chrootx64" "$rodir"
+	mount -t overlay -o lowerdir="$rodir",upperdir="$rwdir",workdir="$workdir" overlay "$overlaydir"
+	mount -o bind packages "$overlaydir"/var/cache/packages
+	mount -o bind distfiles "$overlaydir"/var/cache/distfiles
+	mount -t proc proc "$overlaydir"/proc
+	mount -t sysfs sysfs "$overlaydir"/sys
+	mount -t devtmpfs -o relatime,size=3055348k,nr_inodes=763837,mode=755 none "$overlaydir"/dev
+	mount -t devpts -o nosuid,noexec,relatime,gid=5,mode=620 none "$overlaydir"/dev/pts
+	mount -t tmpfs -o nosuid,nodev none "$overlaydir"/dev/shm
+	mount -t tmpfs -o nosuid,nodev,noexec none  "$overlaydir"/tmp
+}
+
+chrootdevtree () {
+	# inject portage tree, redcore overlay && redcore buildsystem (portage config)
+	chroot "$overlaydir" su - "$chrootuser" -c "$chrootsrcmode"
+}
+
+chrootbuild () {
+	# build and install package(s) given as argument...if is already built, install it
+	einfo "All systems are go!"
+	sleep 1
+	chroot "$overlaydir" su - "$chrootuser" -c "$chrootbuildtarget"
+}
+
+chrootx64 () {
+	# land into a chroot env into overlay mounted core squashfs and make build adjustments, if needed
+	einfo "DROPPING YOU TO A ROOT SHELL INTO BUILD ENVIRONMENT"
+	einfo "FIX FAILURES && ADJUST PORTAGE CONFIGURATION FILES"
+	einfo "TEST USEFLAGS && KEYWORDS && MASKS IF REQUIRED"
+	einfo "IN THE END : DO NOT FORGET TO COMMIT YOUR CHANGES"
+	chroot "$overlaydir" su - "$chrootuser"
+}
+
+makepkg () {
+	checkroot
+	chrootchecksum
+	chrootprepare
+	chrootdevtree
+	chrootbuild
+	chrootx64
+	chrootstop
+}
+
+# iso functions
+
+isostart () {
+	# mount iso image core
+	mount -o bind packages "$isorsynctarget"/var/cache/packages
+	mount -t proc proc "$isorsynctarget"/proc
+	mount -t sysfs sysfs "$isorsynctarget"/sys
+	mount -t devtmpfs -o relatime,size=3055348k,nr_inodes=763837,mode=755 none "$isorsynctarget"/dev
+	mount -t devpts -o nosuid,noexec,relatime,gid=5,mode=620 none "$isorsynctarget"/dev/pts
+	mount -t tmpfs -o nosuid,nodev none "$isorsynctarget"/dev/shm
+	mount -t tmpfs -o nosuid,nodev,noexec none  "$isorsynctarget"/tmp
+}
+
+isostop () {
+	# umount iso image core
+	umount -l "$isorsynctarget"/proc > /dev/null 2>&1
+	umount -l "$isorsynctarget"/sys > /dev/null 2>&1
+	umount -l "$isorsynctarget"/dev/pts > /dev/null 2>&1
+	umount -l "$isorsynctarget"/dev/shm > /dev/null 2>&1
+	umount -l "$isorsynctarget"/dev > /dev/null 2>&1
+	umount -l "$isorsynctarget"/tmp > /dev/null 2>&1
+	umount -l "$isorsynctarget"/var/cache/packages > /dev/null 2>&1
+}
+
+isousertree () {
+	# inject portage tree, redcore overlay && redcore buildsystem (portage config)
+	chroot "$isorsynctarget" su - "$isouser" -c "$isobinmode"
+}
+
+isoramfs () {
+	# generate iso initramfs with required modules for live boot
+	chroot "$isorsynctarget" su - "$isouser" -c "$isoramfscmd"
+}
+
+isoefiimg () {
+	# generate efi bootloader
+	chroot "$isorsynctarget" su - "$isouser" -c "$isoefix64cmd"
+	chroot "$isorsynctarget" su - "$isouser" -c "$isoefiia32cmd"
+}
+
+isochainloader () {
+	# generate syslinux -> grub chainloader for unetbootin compatibility
+	chroot "$isorsynctarget" su - "$isouser" -c "$isochainloadcmd"
+}
+
+isoservices () {
+	# enable live user setup service (runlevel : boot)
+	chroot "$isorsynctarget" su - "$isouser" -c "rc-update add redcorelive boot"
+
+	# enable live iso system services (runlevel : default)
+	for service in acpid dbus NetworkManager avahi-daemon syslog-ng cupsd cronie cgmanager consolekit alsasound bluetooth ntpd openrc-settingsd xdm virtualbox-guest-additions ; do
+		chroot "$isorsynctarget" su - "$isouser" -c "rc-update add "$service" default"
+	done
+}
+
+isomodules () {
+	# build and install any 3rd party kernel modules using DKMS (virtualbox-guest in our case)
+	chroot "$isorsynctarget" su - "$isouser" -c "$isodkms"
+}
+
+isochroot () {
+	# land into a chroot env into iso image core and make adjustments, if needed
+	einfo "DROPPING YOU TO A ROOT SHELL INTO ISO ENVIRONMENT"
+	einfo "INSTALL APPS & TARGETS & DES YOU WANT INSIDE ISO"
+	einfo "EXIT WHEN YOU'RE DONE AND I'LL CREATE THE IMAGE"
+	chroot "$isorsynctarget" su - "$isouser"
+}
+
+prepareiso () {
+	# prepare iso image layout
+	mkdir -p "$isorsynctarget"
+	dd if=/dev/zero of=""$isorsynctarget".img" bs=1M count=10240 && sync
+	mkfs.ext2 -F ""$isorsynctarget".img"
+	mkdir -p "$isorsyncsource"
+	mkdir -p "$isocdrootdir"
+	mkdir -p "$isosquashfsdir"
+	mkdir -p "$isorealfsdir"
+	mkdir -p "$isogrubdir"
+	mkdir -p "$isoefidir"
+	# mount core squashfs and rsync it's contents into core iso image
+	mount -t squashfs "$chrootx64" "$isorsyncsource"
+	mount -t ext4 ""$isorsynctarget".img" "$isorsynctarget"
+	rsync -aHAXr --progress "$isorsyncsource/" "$isorsynctarget/"
+	# copy the kernel for live boot
+	cp -avx ""$isorsynctarget"/boot/"$isokernelname"" ""$isorootdir"/boot/vmlinuz"
+	# generate and copy initramfs for live boot
+	isostart
+	isoramfs
+	isostop
+	mv ""$isorsynctarget"/boot/"$isoramfsname"" ""$isorootdir"/boot/initrd"
+	# generate and copy efi bootloader for live boot
+	isostart
+	isoefiimg
+	isostop
+	mv ""$isorsynctarget"/root/bootx64.efi" "$isoefidir"
+	chmod 755 ""$isoefidir"/bootx64.efi"
+	mv ""$isorsynctarget"/root/bootia32.efi" "$isoefidir"
+	chmod 755 ""$isoefidir"/bootia32.efi"
+	# generate and copy syslinux -> grub chainloader for unetbootin compatibility
+	isostart
+	isochainloader
+	isostop
+	mv ""$isorsynctarget"/root/core.img" "$isogrubdir"
+	cp -avx ""$isorsynctarget"/usr/lib64/grub/i386-pc/lnxboot.img" "$isogrubdir"
+	# land into a chroot env into live environment to make adjustments, if needed
+	isostart
+	isousertree
+	isochroot
+	isostop
+	# build and install any 3rd party kernel modules using DKMS (virtualbox-guest in our case)
+	isostart
+	isomodules
+	isostop
+	# enable live iso image system services
+	isostart
+	isoservices
+	isostop
+	# umount "real" live filesystem
+	umount -l "$isorsynctarget" > /dev/null 2>&1
+	# fix any possible "real" live filesystem corruptions
+	# e2fsck -fy ""$isorsynctarget".img"
+	# move "real" live filesystem into right place
+	mv ""$isorsynctarget".img"  "$isorealfsdir"
+	# compress "fake" live filesystem
+	mksquashfs "$isocdrootdir" ""$isorootdir"/squashfs.img" -b 1048576 -comp xz -Xdict-size 100%
+	mv ""$isorootdir/"squashfs.img" "$isosquashfsdir"
+	# dracut requires "real" live filesystem to be placed 
+	# into a "fake" squashfs live filesystem as bellow :
+	# /cdroot/LiveOS/squashfs.img/LiveOS/rootfs.img 
+	# squashfs.img is the "fake" squashfs live filesystem
+	# rootfs.img is the "real" live filesystem
+}
+
+bootloaderiso () {
+	# get grub2 live boot configs and place them into right place
+	git clone https://gitlab.com/"$releasename"/boot-core.git "$bootloaderfetchpath"
+	cp -avx "$bootloaderconfigs" "$isorootdir"
+}
+
+cleanupiso () {
+	# cleanup temporary files used during iso image layout preparation
+	umount "$isorsyncsource"
+	rm -rf "$isorsynctarget"
+	rm -rf "$isorsyncsource"
+	rm -rf "$isocdrootdir"
+	rm -rf "$bootloaderfetchpath"
+}
+
+makeisoimg () {
+	# create iso image
+	grub2-mkrescue -o ""$releasename"-"$releasetarget"-"$releaseversion"-"$isomainarch".iso" "$isorootdir"
+}
+
+makeiso () {
+	checkroot
+	chrootchecksum
+	prepareiso
+	bootloaderiso
+	cleanupiso
+	makeisoimg
+}
+
+# modechange functions
+
+removeportagetree() {
+	# remove portage tree, but leave packages and distfiles directories intact
+	einfo "Removing gentoo portage tree"
+	if [ -d ""$gentooportdir"/.git" ] ; then
+		find "$gentooportdir" -mindepth 1 -exec rm -rf {} \; > /dev/null 2>&1
+	fi
+}
+
+removeoverlays() {
+	# remove redcore overlay
+	einfo "Removing "$releasename"-"$releasetarget" overlay"
+	if [ -d ""$redcoreportdir"/.git" ] ; then
+		find "$redcoreportdir" -mindepth 1 -exec rm -rf {} \; > /dev/null 2>&1
+	fi
+}
+
+removeportageconfig() {
+	# remove redcore buildsystem (portage configuration)
+	einfo "Removing "$releasename"-"$releasetarget" buildsystem"
+	rm ""$portconfdir"/make.conf" > /dev/null 2>&1
+	rm ""$portconfdir"/make.profile" > /dev/null 2>&1
+	rm "$portconfdir" > /dev/null 2>&1
+	rm -rf "$portclonedir" > /dev/null 2>&1
+}
+
+resetmode () {
+	checkroot
+	removeportagetree
+	removeoverlays
+	removeportageconfig
+}
+
+fetchportageconfig() {
+	# fetch redcore buildsystem (portage configuration)
+	pushd /opt > /dev/null 2>&1
+	einfo "Injecting "$releasename"-"$releasetarget" buildsystem"
+	git clone https://gitlab.com/redcore/redcore-build.git
+	popd > /dev/null 2>&1
+}
+
+fetchfullportagetree() {
+	# fetch full portage tree
+	if [ ! -d ""$gentooportdir"/.git" ] ; then
+		einfo "Injecting mixedmode/srcmode (full) gentoo portage tree"
+		cd "$gentooportdir" && git init > /dev/null 2>&1
+		git remote add origin https://gitlab.com/redcore/portage.git
+		git pull --depth=1 origin master
+		git branch -u origin/master master
+		rm -rf ""$gentooportdir"/profiles/updates"
+	fi
+}
+
+fetchminimalportagetree() {
+	# fetch minimal portage tree
+	# in binmode we don't want the whole tree of gentoo ebuilds
+	# but we need portage profiles portage metadata && portage eclasses
+	# so make a sparse-checkout, to fetch only what we need
+	if [ ! -d ""$gentooportdir"/.git" ] ; then
+		einfo "Injecting binmode (minimal) gentoo portage tree"
+		cd "$gentooportdir" && git init > /dev/null 2>&1
+		git remote add origin https://gitlab.com/redcore/portage.git
+		git config core.sparsecheckout true
+		echo "profiles/*" >> .git/info/sparse-checkout
+		echo "metadata/*" >> .git/info/sparse-checkout
+		echo "eclass/*" >> .git/info/sparse-checkout
+		echo ".gitignore" >> .git/info/sparse-checkout
+		git pull --depth=1 origin master
+		git branch -u origin/master master
+		rm -rf ""$gentooportdir"/profiles/updates"
+	fi
+}
+
+fetchfulloverlays () {
+	# fetch full redcore overlay
+	if [ ! -d ""$redcoreportdir"/.git" ] ; then
+		einfo "Injecting "$releasename"-"$releasetarget" overlay"
+		cd "$redcoreportdir" && git init > /dev/null 2>&1
+		git remote add origin https://gitlab.com/redcore/redcore-desktop.git
+		git pull --depth=1 origin master
+		git branch -u origin/master master
+	fi
+}
+
+fetchminimaloverlays () {
+	# fetch minimal redcore overlay
+	if [ ! -d ""$redcoreportdir"/.git" ] ; then
+		einfo "Injecting binmode (minimal) "$releasename"-"$releasetarget" overlay"
+		cd "$redcoreportdir" && git init > /dev/null 2>&1
+		git remote add origin https://gitlab.com/redcore/redcore-desktop.git
+		git config core.sparsecheckout true
+		echo "profiles/*" >> .git/info/sparse-checkout
+		echo "metadata/*" >> .git/info/sparse-checkout
+		echo "eclass/*" >> .git/info/sparse-checkout
+		git pull --depth=1 origin master
+		git branch -u origin/master master
+	fi
+}
+
+setbinmodeconfig() {
+	# set make.conf to binmode, portage will always use binary packages from binhost
+	ln -sf "$portgitdir" "$portconfdir"
+	ln -sf "$portconfdir"/make.conf.amd64-binmode "$portconfdir"/make.conf
+	eselect profile set 1
+	env-update
+	. /etc/profile
+}
+
+setmixedmodeconfig() {
+	# set make.conf to mixedmode, portage will prefer binary packages over ebuilds
+	# but will use ebuilds if they are newer than binary packages from binhost
+	# or if the binary package is not available in binhost
+	ln -sf "$portgitdir" "$portconfdir"
+	ln -sf "$portconfdir"/make.conf.amd64-mixedmode "$portconfdir"/make.conf
+	eselect profile set 1
+	env-update
+	. /etc/profile
+}
+
+setsrcmodeconfig () {
+	# set make.conf to srcmode, portage will always use ebuilds
+	ln -sf "$portgitdir" "$portconfdir"
+	ln -sf "$portconfdir"/make.conf.amd64-srcmode "$portconfdir"/make.conf
+	eselect profile set 1
+	env-update
+	. /etc/profile
+}
+
+binmode() {
+	resetmode
+	fetchminimalportagetree
+	fetchminimaloverlays
+	fetchportageconfig
+	setbinmodeconfig
+}
+
+mixedmode() {
+	resetmode
+	fetchfullportagetree
+	fetchfulloverlays
+	fetchportageconfig
+	setmixedmodeconfig
+}
+
+srcmode() {
+	resetmode
+	fetchfullportagetree
+	fetchfulloverlays
+	fetchportageconfig
+	setsrcmodeconfig
+}
+
+# help menu color variables
+
+export local colorstart="\e[1;49;34m"
+export local colorstop="\e[0m"
+
+# help menu function
+
+showhelp () {
+
+echo -e "\
+"$colorstart"SYNOPSIS"$colorstop"
+	"$colorstart"vasile --option"$colorstop" ["$colorstart"arguments"$colorstop"]
+	"$colorstart"vasile --help"$colorstop"
+
+"$colorstart"DESCRIPTION"$colorstop"
+
+	Vasile is an acronym for ** Versatile Advanced Script for Iso and Latest Enchantments **
+
+"$colorstart"OPTIONS"$colorstop"
+	"$colorstart"--makepkg"$colorstop" ["$colorstart"package(s)"$colorstop"]
+		This option will allow you to build a package or multiple packages in an overlayfs mounted squashfs chroot jail.
+
+		It must be run in the folder where the squashfs chroot jail resides, or else it will fail to mount the squahfs chroot jail and build the package(s).
+
+		The squashfs chroot jail and the md5sum checksum file are hardcored into "$colorstart"libvasile"$colorstop", but you may want to change them to suit your needs.
+
+		You MUST provide package(s) to build as arguments, or else vasile will only mount the chroot jail
+
+		Examples :
+			"$colorstart"vasile --makepkg wine"$colorstop"
+			"$colorstart"vasile --makepkg wine playonlinux q4wine"$colorstop"
+
+		If the package(s) is/are already built, it will not build it/them again (unless newer version(s) is/are available), but install it/them into squahfs chroot jail
+
+		If the package(s) you want to build depends on any already built package(s) it will make use of it/them to satisfy the required dependencies.
+
+	"$colorstart"--makeiso"$colorstop"
+		This option will allow you to build a live iso image based on the squashfs chroot jail.
+
+		It must be run in the folder where the squashfs chroot jail resides, or else it will fail to rsync the contents of it and build the iso image.
+
+		It is not fully automatic, it will only rsync the contents of the squashfs chroot jail, chroot into it, and let you install packages you want into the iso image.
+		There are some predefined package sets available in "$colorstart"/etc/portage/sets"$colorstop". Adjust them to suit your needs.
+
+		It will ALLWAYS use package(s) built with "$colorstart"--makepkg"$colorstop" option. When you are happy with package selection, just exit the chroot environment and
+		the live filesystem will be compressed, live services will be autoenabled, live bootloader autoconfigured and in the end live iso image will be built. You will find
+		a list of predefined live services list hardcoded into "$colorstart"libvasile"$colorstop". Adjust it to suit your needs.
+
+	"$colorstart"--resetmode"$colorstop"
+		This option will allow you to reset the system state. It will remove whole portage tree, overlays and portage configuration files and reset the system profile. Usually
+		you will never want to call this option directly, unless you really really really know what are you doing. It is called automatically when switching to other states.
+
+		!!! WARNING !!! : Never never never leave the system in this state. You will no longer be able to install/remove/upgrade any packages untill you set the system profile,
+		get the portage tree, overlays and configure portage by hand. Or, you can always activate one of the three other supported system states.
+
+	"$colorstart"--binmode"$colorstop"
+		This option will allow you to change the system state to binmode. In this state portage will allways use only binary packages from the binhost. It will fetch a minimal
+		portage tree without any ebuilds in it, but only with portage profiles, metadata and eclass. It will also fetch overlay and portage configuration files, and will adjust
+		"$colorstart"make.conf"$colorstop" for binary only usage. This system state is for those who just meet with the power of Gentoo.
+
+		!!! WARNING !!! : Never never never modify or create any file in "$colorstart"/etc/portage/"$colorstop" in this state.
+
+	"$colorstart"--mixedmode"$colorstop"
+		This option will allow you to change the system state to mixedmode. In this state portage will prefer binary packages from the binhost over ebuilds from the portage tree.
+		It will fetch the full portage tree, the overlay and portage configuration files, and adjust "$colorstart"make.conf"$colorstop" for binary/ebuild usage. Usually you will find this system state
+		useful if you want to install a package not available in the binhost, you want to upgrade a package to a newer version from portage tree or if you wanna rebuild a package
+		with your own useflags.
+
+		!!! WARNING !!! : Never never never modify any file in "$colorstart"/etc/portage/"$colorstop" in this state. If you want to adjust useflags or keywords for a package, you can create a new file
+		e.g.: "$colorstart"100-my.package.use"$colorstop" in "$colorstart"/etc/portage/package.use/"$colorstop" or "$colorstart"100-my.package.keywords"$colorstop" in "$colorstart"/etc/portage/package.keywords/"$colorstop".
+
+	"$colorstart"--srcmode"$colorstop"
+		This option will allow you to change the system state to srcmode. In more clear terms, it will transform your Kogaion/Argent/Redcore system into pure Gentoo. Binary packages
+		from the binhost will be ignored, and you will only install packages building from portage tree using emerge. It will fetch the full portage tree, the overlay and portage
+		configuration files and adjust "$colorstart"make.conf"$colorstop" for ebuild only usage.
+
+		In this system state you can modify whatever you want in "$colorstart"/etc/portage/"$colorstop". You can adjust useflags, keywords, masks, build environment and rebuild the whole system to suit you.
+		You have the full power of Gentoo available only one command away!
+
+		!!! WARNING !!! : Only use this system state if you have a strong knowledge of Gentoo tools e.g.: "$colorstart"emerge, equery, layman, eix, qlist, useflags, keywords, masks"$colorstop".	"
+exit 0
+}
diff --git a/src/backend/vars b/src/backend/vars
new file mode 100644
index 0000000..4a08a26
--- /dev/null
+++ b/src/backend/vars
@@ -0,0 +1,36 @@
+#!/usr/bin/env bash
+
+export local distupstream="gentoo"
+export local distname="redcore"
+export local disttarget="desktop"
+export local distver="1"
+export local kernver="4.9.53-"$distname"-lts"
+
+export local jailx64=""$distname"_"$distver"_core_x64.squashfs"
+export local jailx64sum=""$jailx64".md5sum"
+
+export local ropath="rodir"
+export local rwpath="rwdir"
+export local workpath="workdir"
+export local overlaypath="overlaydir"
+
+export local jailuser="root"
+export local jailarch="x86_64"
+export local jailtarget="${@:2}"
+export local jailkernname="kernel-genkernel-"$jailarch"-"$kernver""
+export local jailramfsname="initramfs-genkernel-"$jailarch"-"$kernver""
+export local jailrootpath="$distname"-"$disttarget"-"$distver"-"$jailarch"
+export local jailsynctarget=""$jailrootpath"/rootfs"
+export local jailsyncsource="/tmp/"$jailrootpath""
+export local jailbootldrpath=""$jailrootpath"/boot/grub"
+export local jailefildrpath=""$jailrootpath"/efi/boot"
+export local jaildvdpath=""$jailrootpath"/CDroot"
+export local jailsquashfspath=""$jailrootpath"/LiveOS"
+export local jailrealfspath=""$jaildvdpath"/LiveOS"
+export local jailbootldrdlpath="/tmp/bootcore"
+export local jailbootldrcfgpath=""$jailbootldrdlpath"/cdroot/boot"
+export local jailmainportpath="/usr/ports/"$distupstream""
+export local jailaddonportpath="/usr/ports/"$distname""
+export local jailportcfgtarget="/etc/portage"
+export local jailportcfgsource="/opt/"$distname"-build/conf/intel/portage"
+export local jailportvcspath="/opt/"$distname"-build"
-- 
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