pinfo.docker

#! /usr/bin/env bash

set -eu

cd "$( dirname "$( readlink -e "${0}" )" )" || exit 1

# shellcheck disable=SC1091
[ ! -s common/vars.sh ] || . common/vars.sh
# shellcheck disable=SC2034 # Set from common/vars.sh
[[ -n "${__COMMON_VARS_INCLUDED:-}" ]] || {
	echo >&2 "FATAL: Inclusion of common defaults failed"
	exit 1
}

_command='docker'
if command -v podman >/dev/null 2>&1; then
	_command='podman'
fi

# shellcheck disable=SC2034
declare IMAGE="none"
# shellcheck disable=SC1091
[ -s common/run.sh ] && . common/run.sh >/dev/null

_output=''
if ! [ -x "$( command -v "${_command}" )" ]; then
	echo >&2 "FATAL: Cannot locate binary '${_command}'"
	exit 1
elif ! _output="$( "${_command}" info 2>&1 )"; then
	if [ "${_command}" = 'podman' ]; then
		echo >&2 "FATAL: Unable to successfully execute" \
			"'${_command}' - do you need to run '${_command}" \
			"machine start' or re-run '$( basename "${0}" )' as" \
			"'root'?"
	else
		echo >&2 "FATAL: Unable to successfully execute" \
			"'${_command}' - do you need to re-run" \
			"'$( basename "${0}" )' as 'root'?"
	fi
	exit 1
elif [ "$( uname -s )" != 'Darwin' ] &&
		[ $(( $( id -u ) )) -ne 0 ] &&
		echo "${_output}" | grep -Fq -- 'rootless: false'
then
	echo >&2 "FATAL: Please re-run '$( basename "${0}")' as user 'root'"
	exit 1
fi
unset _output


declare CATEGORY='app-text'
declare PN='pinfo'

declare page_volume="${PN}-pages"

# FIXME: shellcheck wants:
#
#          docker_extra_mounts+=( $( add_mount ... ) )
#
#        ... to be expressed in the form of:
#
#          readarray -O "${#docker_extra_mounts[@]}" -t docker_extra_mounts < <(
#            add_mount ...
#          )
#
# shellcheck disable=SC2207
{
declare -a docker_extra_mounts=()
docker_extra_mounts+=( $( add_mount --print \
		'/usr/share/info/' \
		'/srv/host/...'
	) ) || :
# shellcheck disable=SC2116
if [[ -n "${INFOPATH:-}" ]]; then
	for e in $( echo "${INFOPATH//:/ }" ); do
		if [[ -d "${e}" ]]; then
			docker_extra_mounts+=( $( add_mount --print \
				"${e}" \
				'/srv/host/...'
			) ) || :
		fi
	done
fi
export DOCKER_EXTRA_MOUNTS="${docker_extra_mounts[*]:-}"
unset docker_extra_mounts
}

declare f=''
for f in /etc/pinforc /etc/pinfo/pinforc /etc/pinfo/pinfo.rc; do
	[ -s "${f}" ] && break
done
if [ -s "${f}" ]; then
	DOCKER_VOLUMES="
		--volume ${f}:/etc/pinforc:ro
	"
fi
unset f
if [[ -n "${DEV_MODE:-}" ]]; then
	DOCKER_VOLUMES+=" --volume ${PWD}/${base_dir:+"${base_dir}/"}entrypoint.sh.service:/usr/libexec/entrypoint.sh:ro"
fi

# Gather exported data from other created containers ...
id=''
for id in $( # <- Syntax
		podman container ps \
			--all \
			--filter 'name=^openrc-' \
			--filter 'name=^web-' \
			--format '{{.ID}}'
); do
	DOCKER_VOLUMES+=" --volumes-from ${id}:ro"
done
unset id

# Confusingly, if a volume is mounted from the host then the host contents are
# exposed in the container (even if there are none), but if a (new)
# named-volume is referenced then on first use the container contents are
# mirrored into the named-volume instead...
#
DOCKER_VOLUMES=" --volume ${page_volume}:/srv/${PN}/usr/share/info"

export DOCKER_VOLUMES

#DOCKER_SCRIPT="$( cat <<-EOF
#	set -eux ;
#	echo "Detected terminal size: \$( stty size )" ;
#	export TERM LINES COLUMNS ;
#	echo "Setting terminal to \${COLUMNS}x\${LINES}..." ;
#	stty cols "\${COLUMNS}" rows "\${LINES}" ;
#	echo "Detected terminal size: \$( stty size )" ;
#	echo "args: \${@}"
#	exec /usr/bin/pinfo "\${@}"
#EOF
#)"
#nl="$( printf '\n' )"
#DOCKER_SCRIPT="$( echo "${DOCKER_SCRIPT}" | tr "${nl}" ' ' )"
#unset nl
declare -a docker_cmd_vars=()
docker_cmd_vars=(
	--env "LINES=${LINES}"
	--env "COLUMNS=${COLUMNS}"
	--env "TERM=${TERM}"
)
export DOCKER_CMD_VARS="${docker_cmd_vars[*]:-}"
unset docker_cmd_vars

export DOCKER_INTERACTIVE=1
export NO_BUILD_MOUNTS='no_build_mounts' # ... any value will do
#export DOCKER_ENTRYPOINT='/bin/sh'

_docker_resolve "${CATEGORY}/${PN}" 'service' >/dev/null
image="$( _docker_image_exists )"
export image

#set -o xtrace

if [[ -n "${*:-}" ]]; then
	#_docker_run -c "${DOCKER_SCRIPT}" ${@+"${@}"}
	_docker_run ${@+"${@}"}
else
	#_docker_run -c "${DOCKER_SCRIPT}" 'dir'
	_docker_run 'dir'
fi

# vi: set colorcolumn=80 syntax=sh: