49 lines
1.2 KiB
Text
49 lines
1.2 KiB
Text
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#!/bin/bash
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# Run by udev when a USB drive is inserted
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# usage: /usr/bin/on-usb-drive-mounted.sh /media/%k
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# If the drive inserted contains a directory named "butter",
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# symlink it to /media/usb-butter
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device="$1"
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# The device might not be mounted yet, so wait for it.
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usb_mount_path=""
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for ((i=0; i<10; i++)); do
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usb_mount_path=$(findmnt -n -o TARGET --source "$device")
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if [ -n "$usb_mount_path" ]; then
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break
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fi
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sleep 1
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done
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# findmnt will briefly return 1, so don't set e until we're done with it.
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set -e
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if [ -z "$usb_mount_path" ]; then
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echo "Device $device is not mounted"
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exit 1
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else
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echo "Device $device mounted to: $usb_mount_path"
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fi
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butter_dir="$usb_mount_path"
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served_dir="/media/usb-butter"
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# make directory butter_dir world readable
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sudo chmod -R a+rx "$butter_dir"
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sudo chmod -R a+rx "/media/root/"
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if [ -d "$butter_dir" ]; then
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# Delete served_dir if it exists
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if [ -L "$served_dir" ]; then
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sudo rm "$served_dir"
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fi
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echo "Linking $butter_dir to $served_dir"
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ln -sf "$butter_dir" "$served_dir"
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sudo chown -R {{ butter_user }}:{{ butter_user }} $served_dir
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else
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echo "No butter directory $butter_dir found on $device"
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exit 1
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fi
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