commit fb3f3a1611893f1ec8748db7f876b6749dffc1be
Author: timoxa0 <tima012007@gmail.com>
Date:   Mon Oct 28 00:28:19 2024 +0500

    Initial commit

diff --git a/.gitignore b/.gitignore
new file mode 100644
index 0000000..59bbb47
--- /dev/null
+++ b/.gitignore
@@ -0,0 +1,2 @@
+alpine_chroot/
+alpine.tar.gz
diff --git a/common.d/functions.sh b/common.d/functions.sh
new file mode 100644
index 0000000..7f59848
--- /dev/null
+++ b/common.d/functions.sh
@@ -0,0 +1,266 @@
+#!/usr/bin/env bash
+
+ALPINE="https://dl-cdn.alpinelinux.org/alpine/v3.20/releases/x86_64/alpine-minirootfs-3.20.3-x86_64.tar.gz"
+CHROOTDIR="./alpine_chroot"
+
+log()
+{
+    case "$2" in
+        error)
+            printf "\e[1m\e[31mERROR:\e[0m \e[1m%s\e[0m\n" "$1">&2;;
+        internal)
+            printf "\e[1m\e[96m  >>\e[0m \e[1m%s\e[0m\n" "$1">&2;;
+        ierror)
+            printf "\e[1m\e[31m  >>\e[0m \e[1m%s\e[0m\n" "$1">&2;;
+        *)
+            printf "\e[1m\e[92m>>>\e[0m \e[1m%s\e[0m\n" "$1">&2;;
+    esac
+}
+
+mkdir_if_not_exists()
+{
+   [ -d "$1" ] && return 0
+   [ -f "$1" ] && rm -f "$1"
+   mkdir "$1"
+}
+
+umount_if_mouted()
+{   
+    [ ! -d "$1" ] && return 0
+    if grep -qs "$(realpath "$1")" /proc/mounts; then
+        umount "$1"
+        return $?
+    else
+        return 0
+    fi
+}
+
+require ()
+{
+    which "$1" > /dev/null 2>&1 ||
+    {
+        log "$1 not found" error
+        exit 1
+    }
+}
+
+# shellcheck disable=SC2161
+# shellcheck disable=SC2086
+arguments() {
+    while [[ $# -gt 0 ]]; do
+        opt="$1"
+
+        shift
+
+        case "$(echo ${opt} | tr '[:upper:]' '[:lower:]')" in
+            install)
+                install_chroot 
+                break 2 ;;
+
+            remove)
+                remove_chroot 
+                break 2 ;;
+
+            chroot)
+                chroot_into
+                break 2 ;;
+
+            -h | -help | --help)
+                usage ;;
+        
+            *)
+                log "Unknown option: $opt" error
+                break 2 ;;
+        esac
+    done
+}
+
+usage() {
+    log "Usage commands:"
+
+    cat <<EOF
+    # Help screen (this)
+    $0 --help or $0 -h
+
+    # Setup build chroot
+    $0 install
+
+    # Remove build chroot
+    $0 uninstall
+
+    # Chroot into
+    $0 chroot
+EOF
+    exit 0
+}
+
+# shellcheck disable=SC2317
+_shutdown()
+{
+    detach_chroot
+    if [ -z ${1+x} ]; then
+        exit 0
+    else
+        exit "$1"
+    fi
+}
+
+sigterm_handler()
+{
+    sig=$?
+    printf "\e[1m\e[31m>>\e[0m \e[1m%s\e[0m\n" "Shutdown signal received."
+    _shutdown $sig
+}
+
+trap 'trap " " SIGINT SIGTERM SIGHUP; kill 0; wait; sigterm_handler' SIGINT SIGTERM SIGHUP
+
+
+# Chroot functions
+require "lsof"
+require "tar"
+require "gzip"
+require "wget"
+
+setup_inet()
+{
+    [ ! -d "$CHROOTDIR" ] && {
+        log "Rootdir [$CHROOTDIR] does not exists" ierror
+        return 2
+    }
+    echo "nameserver 1.1.1.1" > "$CHROOTDIR/etc/resolv.conf"
+    echo "makelnichroot" > "$CHROOTDIR/etc/hostname"
+    echo "127.0.0.1 localhost" > "$CHROOTDIR/etc/hosts"
+}
+
+prepare_chroot()
+{
+    [ ! -d "$CHROOTDIR" ] && {
+        log "Rootdir [$CHROOTDIR] does not exists" ierror
+        return 2
+    }
+
+    export PATH=/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin:\$PATH
+    
+    mount --bind "$CHROOTDIR" "$CHROOTDIR"
+    mount -t proc proc "$CHROOTDIR/proc"
+    mount -t sysfs sysfs "$CHROOTDIR/sys"
+    mount -t devtmpfs devtmpfs "$CHROOTDIR/dev"
+    mount -t devpts devpts "$CHROOTDIR/dev/pts"
+    mount -t tmpfs devshm "$CHROOTDIR/dev/shm"
+    
+    if uname -m | grep -q aarch64 || [ -f "/proc/sys/fs/binfmt_misc/qemu-aarch64" ]; then
+        log "Cancel qemu-aarch64-static register"
+    else
+
+        # shellcheck disable=SC2028
+        echo ':aarch64:M::\x7fELF\x02\x01\x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x02\x00\xb7\x00:\xff\xff\xff\xff\xff\xff\xff\x00\xff\xff\xff\xff\xff\xff\xff\xff\xfe\xff\xff\xff:'"$(realpath $CHROOTDIR/qemu-aarch64-static):PF" > /proc/sys/fs/binfmt_misc/register 2> /dev/null || true
+         
+        # shellcheck disable=SC2028
+        echo ':aarch64ld:M::\x7fELF\x02\x01\x01\x03\x00\x00\x00\x00\x00\x00\x00\x00\x03\x00\xb7\x00:\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xfe\xff\xff\xff:'"$(realpath $CHROOTDIR/qemu-aarch64-static):PF" > /proc/sys/fs/binfmt_misc/register 2> /dev/null || true
+    fi
+}
+
+detach_chroot()
+{
+    [ ! -d "$CHROOTDIR" ] && {
+        log "Rootdir [$CHROOTDIR] does not exists" ierror
+        return 2
+    }
+    
+    umount_if_mouted "$CHROOTDIR/sys"
+    umount_if_mouted "$CHROOTDIR/dev/pts"
+    umount_if_mouted "$CHROOTDIR/dev/shm"
+    umount_if_mouted "$CHROOTDIR/dev"
+    umount_if_mouted "$CHROOTDIR/proc"
+    umount_if_mouted "$CHROOTDIR"
+    
+    if [ -f "/proc/sys/fs/binfmt_misc/aarch64" ]; then
+        echo -1 > /proc/sys/fs/binfmt_misc/aarch64 2> /dev/null
+    fi
+    if [ -f "/proc/sys/fs/binfmt_misc/aarch64ld" ]; then
+        echo -1 > /proc/sys/fs/binfmt_misc/aarch64ld 2> /dev/null
+    fi
+}
+
+install_chroot()
+{
+    [ -d "$CHROOTDIR" ] && {
+        log "Chroot already installed" error
+        exit 1
+    }
+    mkdir "$CHROOTDIR"
+    [ ! -f "./alpine.tar.gz" ] && {
+        log "Downloading alpine rootfs tarball"
+        wget -q --show-progress "$ALPINE" -O "./alpine.tar.gz" || {
+            ec=$?
+            log "Failed to download rootfs tarball" error
+            exit "$ec"
+        }
+    }
+    
+    log "Extracting alpine rootfs tarball"
+    tar -xzf "./alpine.tar.gz" -C "$CHROOTDIR/" || {
+        log "Failed to extract rootfs" error
+    }
+    setup_inet
+    prepare_chroot || {
+        log "Failed to setup chroot" error
+        exit 1
+    }
+    log "Updating apk repos"
+    chroot "$CHROOTDIR" apk update || {
+        log "Failed to update apk repos" error
+        exit 1
+    }
+    log "Installing pakages"
+    chroot "$CHROOTDIR" apk add shadow fish bash git debootstrap pixz losetup rsync pv wget e2fsprogs libarchive-tools coreutils || {
+        log "Failed to install packages" error
+        exit 1
+    }
+    chroot "$CHROOTDIR" chsh -s /usr/bin/fish root
+    log "Cloning makelni repo"
+    chroot "$CHROOTDIR" git clone "https://git.timoxa0.su/timoxa0/makelni.git" /makelni || {
+        log "Failed to clone makelni repo" error
+        exit 1
+    }
+    log "Installing qemu-aarch64-static"
+    {
+        wget  -q --show-progress -N https://github.com/multiarch/qemu-user-static/releases/download/v7.2.0-1/qemu-aarch64-static -O "$CHROOTDIR/qemu-aarch64-static" && chmod 755 "$CHROOTDIR/qemu-aarch64-static"
+    } || {
+        log "Failed to install qemu-aarch64-static" error
+        exit 1
+    }
+    detach_chroot || {
+        log "Failed to detach chroot" error
+        exit 1
+    }
+    log "Done!"
+    exit 0
+}
+
+remove_chroot()
+{
+    [ ! -d "$CHROOTDIR" ] && {
+        log "Chroot not installed" error
+        exit 1
+    }
+    detach_chroot || {
+        log "Failed to umount chroot" error
+        exit 1
+    }
+    log "Done!"
+    rm -rf "${CHROOTDIR:?}/"
+}
+
+chroot_into()
+{
+    prepare_chroot || {
+        log "Failed to setup chroot" error
+        exit 1
+    }
+    chroot "$CHROOTDIR" /usr/bin/fish
+    detach_chroot || {
+        log "Failed to detach chroot" error
+        exit 1
+    }
+}
diff --git a/setup.sh b/setup.sh
new file mode 100755
index 0000000..3288356
--- /dev/null
+++ b/setup.sh
@@ -0,0 +1,11 @@
+#!/usr/bin/env bash
+
+source ./common.d/functions.sh
+
+if [ "$(id -u)" != "0" ]; then
+    log "$0 must be run as root"
+    exit 3
+fi
+
+arguments "$*"
+