Added basic options

.gitignore

@@ -0,0 +1 @@
+*.kate-swp

gentchroot.sh

@@ -1,5 +1,6 @@
 #!/bin/bash
 #Setting up color codes
+SCRIPT_NAME=$0
 Black='\033[0;30m'
 Red='\033[0;31m'
 Green='\033[0;32m'
@@ -17,15 +18,131 @@ Light_Purple='\033[1;35m'
 Light_Cyan='\033[1;36m'
 White='\033[1;37m'
 NC='\033[0m'
+edebug () {
+    einfo $@
+}
 einfo () {
-echo -e " ${Green}*${NC} ${@:1}${NC}"
+    echo -e " ${Green}*${NC} ${@:1}${NC}"
 }
 ewarn () {
-echo -e " ${Yellow}*${NC} ${@:1}${NC}"
+    echo -e " ${Yellow}*${NC} ${@:1}${NC}"
 }
 eerror () {
-echo -e " ${Red}*${Light_Red} ${@:1}${NC}"
+    echo -e " ${Red}*${Light_Red} ${@:1}${NC}"
+}
+die () {
+    echo
+    eerror die called, ending.
+    exit 1
+}
+end () {
+    exit 0
+}
+show_help () {
+    echo -e "USAGE : ${Light_Green}${SCRIPT_NAME}${NC} ${Yellow}[options]${NC} ${Light_Red}</path/to/target>${NC} "
+    echo -e 
+    echo -e "${Yellow}OPTIONS :${NC}"
+    echo -e " -h        --help                          Show this help."
+    echo -e " -u        --userland,--no-root            Allow the script to run in userland."
+    echo -e " -p        --profile                       Use the specified profile."
+    echo -e "                                           This value will be used in a eselect profile set command."
+    echo -e "${Light_Red}TARGET :${NC}"
+    echo -e " </path/to/target>                         Path to the future chroot installation,"
+    echo -e "                                           can be . to install in the current directory"
 }
 
-echo -e ${Light_Blue}  -- Welcome to Gentoo Chroot Helper --
+getopt --test
+if [ $? != 4 ]; then
+    eerror "Your installation doesn't support enhanced getopt."
+    die
+fi
 
+#Setting up the getopt parser
+echo -e ${Light_Blue}  -- Welcome to Gentoo Chroot Helper -- ${NC}
+echo
+
+SHORT="hup:"
+LONG="help,userland,no-root,profile:"
+
+OPTS=$(getopt --options $SHORT --long $LONG --name "$0" -- "$@")
+if [ $? != 0 ]
+    then eerror Failed to parse options
+    die
+fi
+eval set -- "$OPTS"
+#Setting default values
+NO_ROOT=false
+TARGET=false
+PROFILE="12"
+#Extracting arguments
+while true
+    do case "$1" in
+        -h | --help )
+            show_help
+            end
+            shift
+            ;;
+        -u | --userland | --no-root )
+            NO_ROOT=true
+            shift
+            ;;
+        -p | --profile )
+            PROFILE="$2"
+            shift 2
+            ;;
+        -- )
+            shift
+            ;;
+        *)
+            TARGET=$1
+            break
+            ;;
+    esac
+done
+if [ -z ${TARGET} ]
+    then eerror Please specify a target.
+    ewarn Run ${SCRIPT_NAME} --help for more info.
+    die
+fi
+if [ ${NO_ROOT} != true ]
+    then
+    if [ "$EUID" -ne 0 ]
+        then eerror This script should be ran as root.
+        ewarn If you want to run the script anyway use the --no-root argument.
+        ewarn Warning : Userland chroot generation has not been tested yet.
+        die
+    fi
+fi
+if [ ${NO_ROOT} == true ]
+    then ewarn Warning : NO_ROOT is experimental.
+fi
+
+PROFILE_CHECK=$(eselect profile list |grep ${PROFILE})
+if [ -z "${PROFILE_CHECK}" ]
+    then eerror Invalid profile specified : ${PROFILE}
+    die
+fi
+
+PORTAGE_RSYNC_OPTS=$(emerge --info|grep PORTAGE_RSYNC_OPTS)
+PORTAGE_RSYNC_OPTS=${PORTAGE_RSYNC_OPTS:20}
+PORTAGE_RSYNC_OPTS=${PORTAGE_RSYNC_OPTS%\"*}
+
+einfo Installing @system in ${Red}${TARGET}${NC}
+einfo Profile selected : ${Light_Green}${PROFILE_CHECK}${NC}
+echo
+
+mkdir -p ${TARGET}/etc/portage || (eerror Could not create the directory; die)
+cd ${TARGET} || die
+TARGET=$(pwd)
+edebug Entered ${Light_Blue}${TARGET}${NC}
+
+mkdir -p ${TARGET}/usr/portage/
+
+export ROOT=${TARGET}
+export PORTAGE_CONFIGROOT=${TARGET}
+export PORTDIR=${TARGET}/usr/portage
+einfo Syncing /usr/portage and ${TARGET} Gentoo Repositories.
+rsync ${PORTAGE_RSYNC_OPTS} /usr/portage/ ${PORTDIR} || (eerror Could not rsync .; die)
+ln -s ../../usr/portage/profiles/default/linux/amd64/17.0 ${TARGET}/etc/portage/make.profile
+eselect profile set ${PROFILE} || (eerror Could not set profile.; die)
+FEATURES="buildpkg" emerge -k -j8 @system || (eerror Could not emerge @system ; die)