351 lines
11 KiB
Bash
Executable file
351 lines
11 KiB
Bash
Executable file
#!/bin/sh
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#
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# Copyright © 2018 Red Hat, Inc.
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#
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# Licensed under the Apache License, Version 2.0 (the "License");
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# you may not use this file except in compliance with the License.
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# You may obtain a copy of the License at
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS,
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# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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# See the License for the specific language governing permissions and
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# limitations under the License.
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#
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source /etc/os-release
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release=$VERSION_ID
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prefix_sudo=""
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registry="registry.fedoraproject.org"
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registry_candidate="candidate-registry.fedoraproject.org"
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toolbox_prompt="🔹[\u@\h \W]\\$ "
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is_integer()
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{
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[ "$1" != "" ] && [ $1 -eq $1 2>&42 ]
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return $?
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}
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create()
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(
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dbus_system_bus_address="unix:path=/var/run/dbus/system_bus_socket"
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tmpfs_size=$((64 * 1024 * 1024)) # 64 MiB
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working_container_name="fedora-toolbox-working-container-$(uuidgen --time)"
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if [ "$DBUS_SYSTEM_BUS_ADDRESS" != "" ]; then
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dbus_system_bus_address=$DBUS_SYSTEM_BUS_ADDRESS
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fi
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dbus_system_bus_path=$(echo $dbus_system_bus_address | cut --delimiter = --fields 2 2>&42)
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dbus_system_bus_path=$(readlink --canonicalize $dbus_system_bus_path 2>&42)
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if ! $prefix_sudo buildah inspect --type image $toolbox_image >/dev/null 2>&42; then
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if ! $prefix_sudo buildah from \
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--name $working_container_name \
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localhost/$base_toolbox_image >/dev/null 2>&42; then
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if ! $prefix_sudo buildah from \
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--name $working_container_name \
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$registry/$fgc/$base_toolbox_image >/dev/null 2>&42; then
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echo "$0: failed to create working container"
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exit 1
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fi
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fi
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if ! $prefix_sudo buildah run $working_container_name -- useradd \
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--no-create-home \
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--shell $SHELL \
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--uid $UID \
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--groups wheel \
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$USER \
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>/dev/null 2>&42; then
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$prefix_sudo buildah rm $working_container_name >/dev/null 2>&42
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echo "$0: failed to create user $USER with UID $UID"
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exit 1
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fi
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if ! $prefix_sudo buildah run $working_container_name -- passwd -d $USER >/dev/null 2>&42; then
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$prefix_sudo buildah rm $working_container_name >/dev/null 2>&42
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echo "$0: failed to remove password for user $USER"
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exit 1
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fi
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if ! $prefix_sudo buildah run $working_container_name -- passwd -d root >/dev/null 2>&42; then
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$prefix_sudo buildah rm $working_container_name >/dev/null 2>&42
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echo "$0: failed to remove password for user root"
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exit 1
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fi
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if ! $prefix_sudo buildah config --volume $HOME $working_container_name >/dev/null 2>&42; then
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$prefix_sudo buildah rm $working_container_name >/dev/null 2>&42
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echo "$0: failed to configure volume for $HOME"
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exit 1
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fi
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if ! $prefix_sudo buildah config --volume $XDG_RUNTIME_DIR $working_container_name >/dev/null 2>&42; then
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$prefix_sudo buildah rm $working_container_name >/dev/null 2>&42
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echo "$0: failed to configure volume for $XDG_RUNTIME_DIR"
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exit 1
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fi
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if ! $prefix_sudo buildah config \
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--volume $dbus_system_bus_path \
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$working_container_name >/dev/null 2>&42; then
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$prefix_sudo buildah rm $working_container_name >/dev/null 2>&42
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echo "$0: failed to configure volume for $dbus_system_bus_path"
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exit 1
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fi
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if ! $prefix_sudo buildah config --volume /dev/dri $working_container_name >/dev/null 2>&42; then
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$prefix_sudo buildah rm $working_container_name >/dev/null 2>&42
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echo "$0: failed to configure volume for /dev/dri"
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exit 1
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fi
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if ! $prefix_sudo buildah config --user $USER $working_container_name >/dev/null 2>&42; then
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$prefix_sudo buildah rm $working_container_name >/dev/null 2>&42
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echo "$0: failed to configure the default user as $USER"
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exit 1
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fi
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if ! $prefix_sudo buildah config --workingdir $HOME $working_container_name >/dev/null 2>&42; then
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$prefix_sudo buildah rm $working_container_name >/dev/null 2>&42
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echo "$0: failed to configure the initial working directory to $HOME"
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exit 1
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fi
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if ! $prefix_sudo buildah commit --rm $working_container_name $toolbox_image >/dev/null 2>&42; then
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$prefix_sudo buildah rm $working_container_name >/dev/null 2>&42
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echo "$0: failed to create image $toolbox_image"
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exit 1
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fi
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fi
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if $prefix_sudo podman inspect --type container $toolbox_container >/dev/null 2>&42; then
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echo "$0: container $toolbox_container already exists"
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exit 1
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fi
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total_ram=$(awk '( $1 == "MemTotal:" ) { print $2 }' /proc/meminfo 2>&42) # kibibytes
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if is_integer $total_ram; then
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tmpfs_size=$((total_ram*1024/2)) # bytes
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fi
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max_uid_count=65536
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max_minus_uid=$((max_uid_count-UID))
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uid_plus_one=$((UID+1))
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if ! $prefix_sudo podman create \
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--group-add wheel \
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--hostname toolbox \
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--interactive \
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--name $toolbox_container \
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--network host \
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--privileged \
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--security-opt label=disable \
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--tmpfs /dev/shm:size=$tmpfs_size \
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--tty \
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--uidmap $UID:0:1 \
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--uidmap 0:1:$UID \
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--uidmap $uid_plus_one:$uid_plus_one:$max_minus_uid \
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--volume $HOME:$HOME \
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--volume $XDG_RUNTIME_DIR:$XDG_RUNTIME_DIR \
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--volume $dbus_system_bus_path:$dbus_system_bus_path \
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--volume /dev/dri:/dev/dri \
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$toolbox_image \
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/bin/sh >/dev/null 2>&42; then
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echo "$0: failed to create container $toolbox_container"
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exit 1
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fi
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)
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enter()
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(
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shell_to_exec=/bin/bash
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if ! $prefix_sudo podman start $toolbox_container >/dev/null 2>&42; then
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echo "$0: failed to start container $toolbox_container"
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exit 1
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fi
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if [ "$DBUS_SYSTEM_BUS_ADDRESS" != "" ]; then
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set_dbus_system_bus_address="--env DBUS_SYSTEM_BUS_ADDRESS=$DBUS_SYSTEM_BUS_ADDRESS"
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fi
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if $prefix_sudo podman exec $toolbox_container test -f $SHELL 2>&42; then
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shell_to_exec=$SHELL
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else
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echo "$SHELL not found in $toolbox_container; using $shell_to_exec instead" >&42
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fi
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$prefix_sudo podman exec \
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--env COLORTERM=$COLORTERM \
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--env DBUS_SESSION_BUS_ADDRESS=$DBUS_SESSION_BUS_ADDRESS \
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$set_dbus_system_bus_address \
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--env DESKTOP_SESSION=$DESKTOP_SESSION \
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--env DISPLAY=$DISPLAY \
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--env LANG=$LANG \
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--env PS1="$toolbox_prompt" \
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--env SHELL=$SHELL \
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--env SSH_AUTH_SOCK=$SSH_AUTH_SOCK \
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--env TERM=$TERM \
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--env VTE_VERSION=$VTE_VERSION \
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--env XDG_CURRENT_DESKTOP=$XDG_CURRENT_DESKTOP \
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--env XDG_DATA_DIRS=$XDG_DATA_DIRS \
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--env XDG_MENU_PREFIX=$XDG_MENU_PREFIX \
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--env XDG_RUNTIME_DIR=$XDG_RUNTIME_DIR \
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--env XDG_SEAT=$XDG_SEAT \
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--env XDG_SESSION_DESKTOP=$XDG_SESSION_DESKTOP \
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--env XDG_SESSION_ID=$XDG_SESSION_ID \
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--env XDG_SESSION_TYPE=$XDG_SESSION_TYPE \
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--env XDG_VTNR=$XDG_VTNR \
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--interactive \
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--tty \
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$toolbox_container \
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$shell_to_exec -l 2>&42
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)
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exit_if_extra_operand()
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{
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if [ "$1" != "" ]; then
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echo "$0: extra operand '$1'"
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echo "Try '$0 --help' for more information."
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exit 1
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fi
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}
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exit_if_unrecognized_option()
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{
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echo "$0: unrecognized option '$1'"
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echo "Try '$0 --help' for more information."
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exit 1
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}
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usage()
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{
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echo "Usage: fedora-toolbox [--container <name>]"
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echo " [--release <release>]"
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echo " [-v | --verbose]"
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echo " create [--candidate-registry]"
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echo " [--image <name>]"
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echo " or: fedora-toolbox [--container <name>]"
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echo " [--release <release>]"
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echo " [-v | --verbose]"
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echo " enter"
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echo " or: fedora-toolbox --help"
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}
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exec 42>/dev/null
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while [[ "$1" = -* ]]; do
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case $1 in
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--container )
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shift
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if [ "$1" = "" ]; then
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echo "$0: missing argument for '--container'"
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echo "Try '$0 --help' for more information."
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exit 1
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fi
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toolbox_container=$1
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;;
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-h | --help )
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usage
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exit
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;;
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--release )
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shift
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if [ "$1" = "" ]; then
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echo "$0: missing argument for '--release'"
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echo "Try '$0 --help' for more information."
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exit 1
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fi
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arg=$(echo $1 | sed 's/^F\|^f//' 2>&42)
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if ! is_integer $arg; then
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echo "$0: invalid argument for '--release'"
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echo "Try '$0 --help' for more information."
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exit 1
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fi
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if [ $arg -le 0 2>&42 ]; then
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echo "$0: invalid argument for '--release'"
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echo "Try '$0 --help' for more information."
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exit 1
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fi
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release=$arg
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;;
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--sudo )
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prefix_sudo="sudo"
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;;
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-v | --verbose )
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exec 42>&2
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;;
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* )
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exit_if_unrecognized_option $1
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esac
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shift
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done
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fgc="f$release"
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[ "$toolbox_container" = "" ] && toolbox_container="fedora-toolbox-$USER:$release"
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base_toolbox_image="fedora-toolbox:$release"
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toolbox_image="fedora-toolbox-$USER:$release"
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if [ "$1" = "" ]; then
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echo "$0: missing command"
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echo "Try '$0 --help' for more information."
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exit 1
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fi
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op=$1
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shift
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case $op in
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create )
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while [[ "$1" = -* ]]; do
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case $1 in
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--candidate-registry )
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registry=$registry_candidate
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;;
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--image )
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shift
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if [ "$1" = "" ]; then
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echo "$0: missing argument for '--image'"
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echo "Try '$0 --help' for more information."
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exit 1
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fi
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toolbox_image=$1
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;;
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* )
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exit_if_unrecognized_option $1
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esac
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shift
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done
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exit_if_extra_operand $1
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create
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exit
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;;
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enter )
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while [[ "$1" = -* ]]; do
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case $1 in
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* )
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exit_if_unrecognized_option $1
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esac
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shift
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done
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exit_if_extra_operand $1
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enter
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exit
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;;
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* )
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echo "$0: unrecognized command '$op'"
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echo "Try '$0 --help' for more information."
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exit 1
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esac
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