[jsk_fetch_startup] fix escape evaluation in install_upstart.sh

[knorth55]

now variables starts with $ is evaluated and replace by empty.
I fix the problems

[knorth55]

/etc/ros/indigo/jsk-fetch-startup.conf looks correct

description "spawn jsk bringup nodes for fetch"
# use default log dir: yamaguchi & s-kitagawa (2019/04/18)
# env ROS_LOG_DIR=/var/log/ros

start on roscore_is_up
stop on roscore_is_down

respawn

# add ROSCONSOLE_FORMAT: s-kitagawa (2019/10/03)
env AUDIO_DEVICE="alsa_output.usb-1130_USB_AUDIO-00-AUDIO.analog-stereo"
env ROSCONSOLE_FORMAT="[${severity}] [${time}] [${node}:${logger}]: ${message}"

# enable usb speaker if available
pre-start script
    # launch by fetch user: yamaguchi & s-kitagawa (2019/04/18)
    # exec su ros -c "pactl set-default-sink $AUDIO_DEVICE || true"
    exec su fetch -c "pactl set-default-sink $AUDIO_DEVICE || true"
end script

script
    # launch by fetch user: yamaguchi & s-kitagawa (2019/04/18)
    # exec su ros -c ". /home/fetch/ros/indigo/devel/setup.bash && roslaunch /home/fetch/ros/indigo/src/jsk-ros-pkg/jsk_robot/jsk_fetch_robot/jsk_fetch_startup/launch/fetch_bringup.launch boot_sound:=true"
    exec su fetch -c ". /home/fetch/ros/indigo/devel/setup.bash && roslaunch /home/fetch/ros/indigo/src/jsk-ros-pkg/jsk_robot/jsk_fetch_robot/jsk_fetch_startup/launch/fetch_bringup.launch boot_sound:=true"
end script

[708yamaguchi]

I finally understand these scripts.
This system is a little complicated for shell beginners like me, because there are two shell evaluations before fetch's bringup (install_upstart.sh -> jsk-fetch-startup.conf -> fetch_bringup.launch).

FYI
jsk-fetch-startup.conf of previous version:

description "spawn jsk bringup nodes for fetch"
# use default log dir: yamaguchi & s-kitagawa (2019/04/18)
# env ROS_LOG_DIR=/var/log/ros

start on roscore_is_up
stop on roscore_is_down

respawn

# add ROSCONSOLE_FORMAT: s-kitagawa (2019/10/03)
env AUDIO_DEVICE=alsa_output.usb-1130_USB_AUDIO-00-AUDIO.analog-stereo
env ROSCONSOLE_FORMAT='[] [] [:]: '

# enable usb speaker if available
pre-start script
    # launch by fetch user: yamaguchi & s-kitagawa (2019/04/18)
    # exec su ros -c 'pactl set-default-sink  || true'
    exec su fetch -c 'pactl set-default-sink  || true'
end script

script
    # launch by fetch user: yamaguchi & s-kitagawa (2019/04/18)
    # exec su ros -c ". /home/leus/ros/melodic/devel/setup.bash && roslaunch /home/leus/ros/melodic/src/jsk_robot/jsk_fetch_robot/jsk_fetch_startup/launch/fetch_bringup.launch boot_sound:=true"
    exec su fetch -c ". /home/leus/ros/melodic/devel/setup.bash && roslaunch /home/leus/ros/melodic/src/jsk_robot/jsk_fetch_robot/jsk_fetch_startup/launch/fetch_bringup.launch boot_sound:=true"
end script

[knorth55]

@k-okada could you review and merge this PR?

[knorth55]

this PR is moved to #1208