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#!/bin/bash
# Mounts Android Phones and USB drives (encrypted or not). This script will
# replace the older `dmenumount` which had extra steps and couldn't handle
# encrypted drives.
# TODO: Remove already mounted Android phones from prompt.
# TODO: Try decrypt for drives in crtypttab
# TODO: Add some support for connecting iPhones (although they are annoying).
DMENU="$(command -v cdmenu)"
set -e
# Check for phones.
phones="$(simple-mtpfs -l 2>/dev/null | sed "s/^/📱/")"
# Check for drives.
lsblkoutput="$(lsblk -rpo "uuid,name,type,size,label,mountpoint,fstype")"
# Get all LUKS drives
allluks="$(echo "$lsblkoutput" | grep crypto_LUKS)" || true
# Get a list of the LUKS drive UUIDs already decrypted.
decrypted="$(find /dev/disk/by-id/dm-uuid-CRYPT-LUKS2-* | sed "s|.*LUKS2-||;s|-.*||")" || true
# Functioning for formatting drives correctly for dmenu:
filter() { sed "s/ /:/g" | awk -F':' '$7==""{printf "%s%s (%s) %s\n",$1,$3,$5,$6}' ; }
# Get only LUKS drives that are not decrypted.
IFS='
'
unopenedluks="$(for drive in $allluks; do
uuid="${drive%% *}"
uuid="${uuid//-}" # This is a bashism.
for open in $decrypted; do
[ "$uuid" = "$open" ] && break 1
done && continue 1
echo "🔒 $drive"
done | filter)"
# Get all normal, non-encrypted or decrypted partitions that are not mounted.
normalparts="$(echo "$lsblkoutput"| grep -v crypto_LUKS | grep 'part\|rom\|crypt' | sed "s/^/💾 /" | filter )"
# Add all to one variable. If no mountable drives found, exit.
alldrives="$(echo "$phones
$unopenedluks
$normalparts" | sed "/^$/d;s/ *$//")"
test -n "$alldrives"
# Feed all found drives to dmenu and get user choice.
chosen="$(echo "$alldrives" | $DMENU -l 16 -p "Mount which drive?" -i)"
# Function for prompting user for a mountpoint.
getmount(){
mp="$(find /mnt /media /mount /home -maxdepth 1 -type d 2>/dev/null | $DMENU -i -p "Mount this drive where?")"
test -n "$mp"
if [ ! -d "$mp" ]; then
mkdiryn=$(printf "No\\nYes" | $DMENU -i -p "$mp does not exist. Create it?")
[ "$mkdiryn" = "Yes" ] && (mkdir -p "$mp" || sudo -A mkdir -p "$mp")
fi
}
attemptmount(){
# Attempt to mount without a mountpoint, to see if drive is in fstab.
sudo -A mount "$1" || return 1
notify-send "💾Drive Mounted." "$chosen mounted."
exit
}
case "$chosen" in
💾*)
chosen="${chosen%% *}"
chosen="${chosen:1}" # This is a bashism.
attemptmount "$chosen" || getmount
sudo -A mount "$chosen" "$mp" -o uid="$(id -u)",gid="$(id -g)"
notify-send "💾Drive Mounted." "$chosen mounted to $mp."
;;
🔒*)
chosen="${chosen%% *}"
chosen="${chosen:1}" # This is a bashism.
# Number the drive.
while true; do
[ -f "/dev/mapper/usb$num" ] || break
num="$(printf "%02d" "$((num +1))")"
done
# Decrypt in a terminal window
${TERMINAL:-st} -n floatterm -g 60x1 -e sudo cryptsetup open "$chosen" "usb$num"
# Check if now decrypted.
test -b "/dev/mapper/usb$num"
echo $num
echo "$mp"
attemptmount "/dev/mapper/usb$num" || getmount
if [ "$(lsblk -n -ofstype /dev/mapper/usb$num)" == "btrfs" ]; then
# BTRFS can't list subvolumes of unmounted partitions
sudo -A mount -o ro "/dev/mapper/usb$num" "$mp"
subvol="$(sudo btrfs subvolume list $mp | cut -d' ' -f9 | $DMENU -i -p 'Which subvolume to mount')"
# "mount -o remount,rw" does not change the subvolume, so remount ourselves
sudo umount "$mp"
# default zstd:3 is fast enough even for solid-state drives and compression is OK
# autodefrag is broken in 5.16 kernel
sudo -A mount -o compress-force=zstd,autodefrag,subvol="$subvol" "/dev/mapper/usb$num" "$mp"
else
sudo -A mount -o uid="$(id -u)",gid="$(id -g)" "/dev/mapper/usb$num" "$mp"
fi
notify-send "🔓Decrypted drive Mounted." "$chosen decrypted and mounted to $mp."
;;
📱*)
notify-send "❗Note" "Remember to allow file access on your phone now."
getmount
chosen="${chosen%%:*}"
chosen="${chosen:1}" # This is a bashism.
sudo -A simple-mtpfs -o allow_other --device "$chosen" "$mp"
notify-send "🤖 Android Mounted." "Android device mounted to $mp."
;;
esac
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