Use sane script locations and add help menu

TODO

@@ -0,0 +1,6 @@
+- root authorized_keys support
+- generalize ansible -> any infrastructure management by allowing only root ssh login.
+- zfs support
+- dracut -> genkernel
+- save meta information to /var/db/gentoo-install
+- systemd settings pls

chroot

@@ -1 +0,0 @@
-scripts/main.sh

config.sh

@@ -1,7 +1,3 @@
-source "$GENTOO_INSTALL_REPO_DIR/scripts/protection.sh" || exit 1
-source "$GENTOO_INSTALL_REPO_DIR/scripts/internal_config.sh" || exit 1
-
-
 ################################################
 # Disk configuration
 
@@ -10,7 +6,7 @@ source "$GENTOO_INSTALL_REPO_DIR/scripts/internal_config.sh" || exit 1
 #
 # You can also create your own scheme using the functions provided in internal_config.sh,
 # if you need something tailored to your specific system. Generally supported is
-# any combination of RAID0/1, luks, btrfs and the usual filesystems (ext4, fat)
+# any combination of RAID0/1, luks, zfs, btrfs and the usual filesystems (ext4, fat)
 # Have a look at the implementation of the default schemes, but be aware that you
 # most likely don't want to implement your own scheme.
 #

install

@@ -1 +0,0 @@
-scripts/main.sh

install

@@ -0,0 +1,110 @@
+#!/bin/bash
+set -o pipefail
+
+################################################
+# Initialize script environment
+
+# Find the directory this script is stored in. (from: http://stackoverflow.com/questions/59895)
+get_source_dir() {
+	local source="${BASH_SOURCE[0]}"
+	while [[ -h $source ]]
+	do
+		local tmp="$(cd -P "$(dirname "${source}")" && pwd)"
+		source="$(readlink "${source}")"
+		[[ $source != /* ]] && source="${tmp}/${source}"
+	done
+
+	echo -n "$(realpath "$(dirname "${source}")")"
+}
+
+export GENTOO_INSTALL_REPO_DIR_ORIGINAL="$(get_source_dir)"
+export GENTOO_INSTALL_REPO_DIR="$GENTOO_INSTALL_REPO_DIR_ORIGINAL"
+export GENTOO_INSTALL_REPO_SCRIPT_ACTIVE=true
+export GENTOO_INSTALL_REPO_SCRIPT_PID=$$
+
+umask 0077
+
+source "$GENTOO_INSTALL_REPO_DIR/scripts/utils.sh"
+source "$GENTOO_INSTALL_REPO_DIR/scripts/internal_config.sh"
+source "$GENTOO_INSTALL_REPO_DIR/scripts/functions.sh"
+source "$GENTOO_INSTALL_REPO_DIR/scripts/main.sh"
+
+
+################################################
+# Main dispatch
+
+# Instantly kill when pressing ctrl-c
+trap 'kill "$GENTOO_INSTALL_REPO_SCRIPT_PID"' INT
+
+ACTION=""
+CONFIG="$GENTOO_INSTALL_REPO_DIR/config.sh"
+
+while [[ $# -gt 0 ]]; do
+	case "$1" in
+		""|"help"|"--help"|"-help"|"-h")
+			echo "Usage: $0 [opts]... <action>"
+			echo "Performs a minimal gentoo installation. See https://github.com/oddlama/gentoo-install"
+			echo "for more information."
+			echo "                           location (config.sh)"
+			echo "Options:"
+			echo "  -c, --config <CONFIG>    Use the given configuration file instead of the default"
+			echo "                           location (config.sh)"
+			echo ""
+			echo "Actions:"
+			echo "  -i, --install            Installs gentoo using the configuration"
+			echo "                           provided in config.sh"
+			echo "  -R, --chroot             Chroot into an existing system. The root filesystem"
+			echo "                           is mounted automatically based on the partition"
+			echo "                           UUIDs (generated when installing for the first time),"
+			echo "                           and unmounted when the chroot exits"
+			echo "  -u, --umount             Try to unmount all associated mountpoints. (Only needed"
+			echo "                           if anything gets forcefully interrupted)"
+			exit 0
+			;;
+		"-c"|"--config")
+			[[ -f "$2" ]] \
+				|| die "Config file not found: '$2'"
+			CONFIG="$(realpath "$2" 2>/dev/null)"
+			shift
+			;;
+		"-R"|"--chroot")
+			[[ -z $ACTION ]] || die "Multiple actions given"
+			ACTION="chroot"
+			;;
+		"-i"|"--install")
+			[[ -z $ACTION ]] || die "Multiple actions given"
+			ACTION="install"
+			;;
+		"-u"|"--umount"|"--unmount")
+			[[ -z $ACTION ]] || die "Multiple actions given"
+			ACTION="umount"
+			;;
+		"__install_gentoo_in_chroot")
+			ACTION="__install_gentoo_in_chroot"
+			;;
+		*) die "Invalid option '$1'" ;;
+	esac
+	shift
+done
+
+# Load config
+[[ -z "${CONFIG%%$GENTOO_INSTALL_REPO_DIR*}" ]] \
+	|| die "Configuration file must be inside the installation directory. This is needed so it is accessible from within the chroot environment."
+
+source "$CONFIG"
+[[ $I_HAVE_READ_AND_EDITED_THE_CONFIG_PROPERLY == "true" ]] \
+	|| die "You have not properly read the config. Edit the config file and set I_HAVE_READ_AND_EDITED_THE_CONFIG_PROPERLY=true to continue."
+
+preprocess_config
+[[ $EUID == 0 ]] \
+	|| die "Must be root"
+
+mkdir_or_die 0755 "$TMP_DIR"
+
+case "$ACTION" in
+	"chroot")  main_chroot "$@" ;;
+	"install") main_install "$@" ;;
+	"umount")  main_umount "$@" ;;
+	"__install_gentoo_in_chroot") main_install_gentoo_in_chroot "$@" ;;
+	*) die "Invalid action '$ACTION'" ;;
+esac

scripts/install_gentoo_in_chroot

@@ -1 +0,0 @@
-main.sh

scripts/main.sh

@@ -1,41 +1,4 @@
-#!/bin/bash
+source "$GENTOO_INSTALL_REPO_DIR/scripts/protection.sh" || exit 1
-set -o pipefail
-
-################################################
-# Initialize script environment
-
-# Find the directory this script is stored in. (from: http://stackoverflow.com/questions/59895)
-get_source_dir() {
-	local source="${BASH_SOURCE[0]}"
-	while [[ -h $source ]]
-	do
-		local tmp="$(cd -P "$(dirname "${source}")" && pwd)"
-		source="$(readlink "${source}")"
-		[[ $source != /* ]] && source="${tmp}/${source}"
-	done
-
-	echo -n "$(realpath "$(dirname "${source}")")"
-}
-
-export GENTOO_INSTALL_REPO_DIR_ORIGINAL="$(dirname "$(get_source_dir)")"
-export GENTOO_INSTALL_REPO_DIR="$GENTOO_INSTALL_REPO_DIR_ORIGINAL"
-export GENTOO_INSTALL_REPO_SCRIPT_ACTIVE=true
-export GENTOO_INSTALL_REPO_SCRIPT_PID=$$
-
-umask 0077
-
-source "$GENTOO_INSTALL_REPO_DIR/scripts/utils.sh"
-source "$GENTOO_INSTALL_REPO_DIR/scripts/config.sh"
-source "$GENTOO_INSTALL_REPO_DIR/scripts/functions.sh"
-
-[[ $I_HAVE_READ_AND_EDITED_THE_CONFIG_PROPERLY == "true" ]] \
-	|| die "You have not properly read the config. Set I_HAVE_READ_AND_EDITED_THE_CONFIG_PROPERLY=true to continue."
-
-preprocess_config
-
-mkdir_or_die 0755 "$TMP_DIR"
-[[ $EUID == 0 ]] \
-	|| die "Must be root"
 
 
 ################################################
@@ -433,35 +396,15 @@ main_install() {
 
 	[[ $IS_EFI == "true" ]] \
 		&& mount_efivars
-	gentoo_chroot "$GENTOO_INSTALL_REPO_BIND/scripts/main.sh" install_gentoo_in_chroot
+	gentoo_chroot "$GENTOO_INSTALL_REPO_BIND/scripts/main.sh" __install_gentoo_in_chroot
 	gentoo_umount
 }
 
 main_chroot() {
 	gentoo_chroot "$@"
+	gentoo_umount
 }
 
 main_umount() {
 	gentoo_umount
 }
-
-
-################################################
-# Main dispatch
-
-# Instantly kill when pressing ctrl-c
-trap 'kill "$GENTOO_INSTALL_REPO_SCRIPT_PID"' INT
-
-SCRIPT_ALIAS="$(basename "$0")"
-if [[ $SCRIPT_ALIAS == main.sh ]]; then
-	SCRIPT_ALIAS="$1"
-	shift
-fi
-
-case "$SCRIPT_ALIAS" in
-	"chroot") main_chroot "$@" ;;
-	"install") main_install "$@" ;;
-	"install_gentoo_in_chroot") main_install_gentoo_in_chroot "$@" ;;
-	"umount") main_umount "$@" ;;
-	*) die "Invalid alias '$SCRIPT_ALIAS' was used to execute this script" ;;
-esac

scripts/utils.sh

@@ -5,7 +5,7 @@ elog() {
 }
 
 einfo() {
-	echo "[+] $*"
+	echo "[+] $*"
 }
 
 ewarn() {
@@ -13,12 +13,13 @@ ewarn() {
 }
 
 eerror() {
-	echo " * ERROR: $*" >&2
+	echo "error: $*" >&2
 }
 
 die() {
 	eerror "$*"
-	kill "$GENTOO_INSTALL_REPO_SCRIPT_PID"
+	[[ $$ == $GENTOO_INSTALL_REPO_SCRIPT_PID ]] \
+		|| kill "$GENTOO_INSTALL_REPO_SCRIPT_PID"
 	exit 1
 }
 

umount

@@ -1 +0,0 @@
-scripts/main.sh