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#!/bin/sh
# TODO: add support for mounting discs
sudo=doas
mps=/media/mnt # User should have ownership of this directory
notify='notify-send --urgency low'
devexist() { [ -z $1 ] || ([ ! -e "$1" ] && $notify "Device $1 does not exist!") && exit 1; }
mnt() {
# Select a device with unmounted partitions
awk_printdisks='
/^disk/ { diskinfo = $2 " " toupper($3) " Device \"" substr($0, i ? i : i = index($0, $5)) "\" (" $4 ")" } # Fifth field is label since mp is null
/^part/ && !$4 && diskinfo { print diskinfo; diskinfo = "" } # Fourth field is the mp since type is null
'
sed_getdev='s/.*" (\(.*\))$/\/dev\/\1/; s/.* /\/dev\//'
devexist ${disk=$(lsblk -no TYPE,SIZE,TRAN,KNAME,MOUNTPOINT,MODEL | awk "$awk_printdisks" | dmenu -p 'Disk: ' | sed "$sed_getdev")}
# Select an unmounted partition
awk_printparts='/^part\s*[0-9]/ { print $2 " " toupper($3) " Partition " ($5 ? "\"" substr($0, i ? i : i = index($0, $5)) "\" (" $4 ")" : $4) }'
devexist ${part=$(lsblk -no TYPE,MOUNTPOINT,SIZE,FSTYPE,KNAME,LABEL $disk | awk "$awk_printparts" | dmenu -p 'Mount partition: ' | sed "$sed_getdev")}
# Create a mountpoint automatically
awk_mpname='{ print $3 ? substr($0, index($0, $3)) : $1 " " toupper($2) " Volume" }'
mp="$mps/$(lsblk -no SIZE,FSTYPE,LABEL $part | awk "$awk_mpname")"
[ -e "$mp" ] && mp="$mp $(lsblk -no PARTUUID $part)"
mkdir -p "$mp"
# Handle filesystem cases
case `lsblk -no FSTYPE $part` in
vfat) opts="-o rw,umask=0000" ;;
exfat) opts="-o uid=$(id -u),gid=$(id -g)" ;;
esac
# Mount the partition
mountout="`$sudo mount $part "$mp" $opts 2>&1`" \
&& $notify "Device Successfully Mounted" "Mounted \"$part\" to \"$mp\"" \
|| $notify "Error Mounting Device \"$part\" to \"$mp\"" "$mountout"
# Change permissions
user=$(whoami) && $doas chown -R $user:$user "$mp"
}
umnt() {
# Exclude mountpoints from /etc/fstab
awk_fstabmps='!/$^/ && !/^#/ { gsub(/\//, "\\/"); regex = (regex ? regex "|" : "") $2 "$" } END { print regex }'
excludere="$(awk "$awk_fstabmps" /etc/fstab)"
# Select a partition to unmount
awk_mpname='$2 &&'"!/$excludere/"'{ print $1 " on " substr($0, index($0, $2)) }'
selpart="$(lsblk -no KNAME,MOUNTPOINT | awk "$awk_mpname" | dmenu -p 'Unmount Partition: ')" || exit 1
devexist ${part=$(echo "$selpart" | sed 's/^/\/dev\//; s/ .*//')}
mp="$(echo "$selpart" | cut -d' ' -f3-)"
# Unmount the partition
umountout="`$sudo umount -A $part`" \
&& $notify "Device Successfully Unmounted" "Unmounted \"$part\" from \"$mp\"" \
|| $notify "Error Unmounting Device \"$part\" from \"$mp\"" "$umountout"
# Remove mp directory if it is in mps
[ "$(dirname "$mp")" = $mps ] && rm -rf "$mp"
}
case $1 in
-m) mnt ;;
-u) umnt ;;
*) echo "Usage: $(basename "$0") [-m|-u]\n\nOPTIONS:\n -m\tMount mode\n -u\tUnmount mode"; exit 2 ;;
esac
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