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https://github.com/fsquillace/junest.git
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ddc7ede70a
This change separate different parts of the code into several categories: `chroot`, `proot`, `build`, `common`, `setup`. This should simplify the maintenance of the code and will help introducing the user namespace module in a easier way.
224 lines
7.3 KiB
Bash
Executable file
224 lines
7.3 KiB
Bash
Executable file
#!/usr/bin/env bash
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#
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# This file is part of JuNest (https://github.com/fsquillace/junest).
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#
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JUNEST_BASE="$(readlink -f $(dirname $(readlink -f "$0"))/..)"
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source "${JUNEST_BASE}/lib/utils/utils.sh"
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source "${JUNEST_BASE}/lib/core/common.sh"
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source "${JUNEST_BASE}/lib/core/build.sh"
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source "${JUNEST_BASE}/lib/core/setup.sh"
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source "${JUNEST_BASE}/lib/core/proot.sh"
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source "${JUNEST_BASE}/lib/core/chroot.sh"
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###################################
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### General functions ###
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###################################
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usage() {
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echo -e "$NAME (v$(cat $JUNEST_BASE/VERSION)): $DESCRIPTION"
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echo
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echo -e "Usage: $CMD [options] [--] [command]"
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echo
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echo -e "Setup options:"
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echo -e "-i, --setup-from-file <image> Setup the $NAME image in ${JUNEST_HOME}"
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echo -e "-a, --arch <arch> $NAME architecture to download (x86_64, x86, arm)"
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echo -e " Defaults to the host architecture ($ARCH)"
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echo -e "-d, --delete Delete $NAME from ${JUNEST_HOME}"
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echo
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echo -e "Access options:"
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echo -e "-f, --fakeroot Run $NAME with fakeroot privileges"
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echo -e "-r, --root Run $NAME with root privileges"
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echo -e "-p, --proot-args <args> Proot arguments (use $CMD -p \"--help\" to check out the proot options)"
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echo
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echo -e "Building options:"
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echo -e "-b, --build-image Build a $NAME image (must run in ArchLinux)"
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echo -e "-n, --disable-validation Disable the $NAME image validation"
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echo -e "-c, --check <${CMD}_script> Validate the env located in ${JUNEST_HOME}"
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echo -e " using ${CMD}_script. This will alterate the environment"
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echo -e "-s, --skip-root-tests Skip the root tests during the validation process"
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echo
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echo -e "General options:"
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echo -e "-h, --help Show this help message"
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echo -e "-v, --version Show the $NAME version"
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}
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version() {
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echo -e "$NAME $(cat $JUNEST_BASE/VERSION)"
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}
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check_cli(){
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if $OPT_BUILD_IMAGE
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then
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if $OPT_DELETE || $OPT_HELP || $OPT_VERSION || $OPT_SETUP_FROM_FILE || \
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$OPT_FAKEROOT || $OPT_ROOT || $OPT_CHECK
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then
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die "The build image option must be used exclusively"
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fi
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fi
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if $OPT_SKIP_ROOT_TEST
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then
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if $OPT_DELETE || $OPT_HELP || $OPT_VERSION || $OPT_SETUP_FROM_FILE || \
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$OPT_FAKEROOT || $OPT_ROOT
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then
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die "The skip root tests option must be used with either build image or check options"
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fi
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fi
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if $OPT_CHECK
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then
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if $OPT_DELETE || $OPT_HELP || $OPT_VERSION || $OPT_SETUP_FROM_FILE || \
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$OPT_FAKEROOT || $OPT_ROOT || $OPT_BUILD_IMAGE
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then
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die "The validation image option must be used exclusively"
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fi
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fi
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if $OPT_DISABLE_VALIDATION
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then
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if $OPT_DELETE || $OPT_HELP || $OPT_VERSION || $OPT_SETUP_FROM_FILE || \
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$OPT_FAKEROOT || $OPT_ROOT || $OPT_CHECK
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then
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die "The disable validation option must be used with the build image option only"
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fi
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fi
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if $OPT_DELETE
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then
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if $OPT_BUILD_IMAGE || $OPT_HELP || $OPT_VERSION || $OPT_SETUP_FROM_FILE || \
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$OPT_FAKEROOT || $OPT_ROOT || $OPT_DISABLE_VALIDATION || $OPT_CHECK
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then
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die "The $NAME delete option must be used exclusively"
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fi
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fi
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if $OPT_HELP
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then
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if $OPT_BUILD_IMAGE || $OPT_DELETE || $OPT_VERSION || $OPT_SETUP_FROM_FILE || \
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$OPT_FAKEROOT || $OPT_ROOT || $OPT_DISABLE_VALIDATION || $OPT_CHECK
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then
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die "The $NAME help option must be used exclusively"
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fi
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fi
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if $OPT_VERSION
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then
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if $OPT_BUILD_IMAGE || $OPT_DELETE || $OPT_HELP || $OPT_SETUP_FROM_FILE || \
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$OPT_FAKEROOT || $OPT_ROOT || $OPT_DISABLE_VALIDATION || $OPT_CHECK
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then
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die "The $NAME version option must be used exclusively"
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fi
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fi
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if $OPT_FAKEROOT && $OPT_ROOT
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then
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die "You must access to $NAME with either fakeroot or root permissions"
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fi
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if $OPT_PROOT_ARGS || $OPT_ARCH
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then
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if $OPT_BUILD_IMAGE || $OPT_DELETE || $OPT_HELP || \
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$OPT_ROOT || $OPT_VERSION || $OPT_DISABLE_VALIDATION || $OPT_CHECK
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then
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die "Invalid syntax: Proot and arch args are not allowed with the other options"
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fi
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fi
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if [ "$ARGS" != "" ]
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then
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if $OPT_BUILD_IMAGE || $OPT_DELETE || $OPT_HELP || $OPT_SETUP_FROM_FILE || \
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$OPT_VERSION || $OPT_DISABLE_VALIDATION || $OPT_CHECK
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then
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die "No arguments are needed. For the CLI syntax run: $CMD --help"
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fi
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fi
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return 0
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}
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function parse_arguments(){
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OPT_SETUP_FROM_FILE=false
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IMAGE_FILE=""
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OPT_FAKEROOT=false
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OPT_ROOT=false
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OPT_PROOT_ARGS=false
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PROOT_ARGS=""
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OPT_ARCH=false
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ARCH_ARG=""
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OPT_BUILD_IMAGE=false
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OPT_DISABLE_VALIDATION=false
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OPT_CHECK=false
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CHECK_ARG=""
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OPT_SKIP_ROOT_TEST=false
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OPT_DELETE=false
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OPT_HELP=false
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OPT_VERSION=false
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for opt in "$@"
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do
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case "$1" in
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-i|--setup-from-file) OPT_SETUP_FROM_FILE=true ; shift ; IMAGE_FILE=$1 ; shift ;;
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-f|--fakeroot) OPT_FAKEROOT=true ; shift ;;
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-r|--root) OPT_ROOT=true ; shift ;;
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-p|--proot-args) OPT_PROOT_ARGS=true ; shift ; PROOT_ARGS=$1; shift ;;
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-a|--arch) OPT_ARCH=true ; shift ; ARCH_ARG=$1; shift ;;
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-b|--build-image) OPT_BUILD_IMAGE=true ; shift ;;
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-n|--disable-validation) OPT_DISABLE_VALIDATION=true ; shift ;;
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-c|--check) OPT_CHECK=true ; shift ; CHECK_ARG=$1; shift ;;
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-s|--skip-root-tests) OPT_SKIP_ROOT_TEST=true ; shift ;;
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-d|--delete) OPT_DELETE=true ; shift ;;
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-h|--help) OPT_HELP=true ; shift ;;
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-v|--version) OPT_VERSION=true ; shift ;;
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--) shift ; break ;;
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-*) die "Invalid option $1" ;;
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*) break ;;
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esac
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done
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ARGS=()
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for arg in "$@"
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do
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ARGS+=("$arg")
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done
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}
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function execute_operation(){
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$OPT_HELP && usage && return
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$OPT_VERSION && version && return
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if $OPT_BUILD_IMAGE; then
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build_image_env $OPT_DISABLE_VALIDATION $OPT_SKIP_ROOT_TEST
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return
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elif $OPT_DELETE; then
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delete_env
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return
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elif $OPT_CHECK; then
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check_env "${JUNEST_HOME}" "${CHECK_ARG}" $OPT_SKIP_ROOT_TEST
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return
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fi
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if ! is_env_installed
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then
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if $OPT_SETUP_FROM_FILE; then
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setup_env_from_file $IMAGE_FILE
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else
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setup_env $ARCH_ARG
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unset ARCH_ARG
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fi
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elif $OPT_SETUP_FROM_FILE; then
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die "Error: The image cannot be installed since $JUNEST_HOME is not empty."
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fi
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[ -z "${ARCH_ARG}" ] || \
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die "The option --arch cannot be specified since JuNest has already been downloaded in $JUNEST_HOME"
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if $OPT_FAKEROOT; then
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run_env_as_fakeroot "${PROOT_ARGS}" "${ARGS[@]}"
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elif $OPT_ROOT; then
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run_env_as_root "${ARGS[@]}"
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else
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run_env_as_user "${PROOT_ARGS}" "${ARGS[@]}"
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fi
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}
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function cli() {
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parse_arguments "$@"
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check_cli
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execute_operation
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}
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cli "$@"
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# vim: set ts=4 sw=4 noet:
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