add diff command and mounter and unmounter scripts

3 files changed, 170 insertions, 0 deletions

diff --git a/.config/kak/autoload/diff.kak b/.config/kak/autoload/diff.kak
new file mode 100644
index 0000000..299b403
--- /dev/null
+++ b/.config/kak/autoload/diff.kak
@@ -0,0 +1,23 @@
+define-command -docstring 'Diff the current selections and display result in a new buffer.' \
+diff-selections %{
+    evaluate-commands %sh{
+        eval set -- "$kak_quoted_selections"
+
+        if [ $# -ge 1 ]; then
+            dir=$(mktemp -d -t "kak_diff_XXXXXXX")
+            a="$dir/a"
+            b="$dir/b"
+            result="$dir/result"
+            printf "%s" "$1" > "$a"
+            printf "%s" "${2:-$kak_reg_d}" > "$b"
+            diff -uw "$a" "$b" > "$result"
+            printf %s\\n "evaluate-commands -try-client '$kak_opt_toolsclient' %{
+                edit -readonly ${result}
+                hook -always -once buffer BufClose .* %{ nop %sh{ rm -r ${dir} } }
+            }"
+        else
+            printf "echo -debug 'You must have at least 2 selections to compare.'"
+        fi
+    }
+}
+map global user d ':diff-selections<ret>' -docstring 'diff on selections or selection and reg_d'
diff --git a/.local/bin/mounter b/.local/bin/mounter
new file mode 100755
index 0000000..389f2d3
--- /dev/null
+++ b/.local/bin/mounter
@@ -0,0 +1,119 @@
+#!/bin/bash
+
+# Mounts Android Phones and USB drives (encrypted or not). This script will
+# replace the older `dmenumount` which had extra steps and couldn't handle
+# encrypted drives.
+# TODO: Try decrypt for drives in crtypttab
+# TODO: Add some support for connecting iPhones (although they are annoying).
+
+IFS='
+'
+# Function for escaping cell-phone names.
+escape(){ echo "$@" | iconv -cf UTF-8 -t ASCII//TRANSLIT | tr -d '[:punct:]' | tr '[:upper:]' '[:lower:]' | tr ' ' '-' | sed "s/-\+/-/g;s/\(^-\|-\$\)//g" ;}
+
+# Check for phones.
+phones="$(simple-mtpfs -l 2>/dev/null | sed "s/^/📱/")"
+mountedphones="$(grep "simple-mtpfs" /etc/mtab)"
+# If there are already mounted phones, remove them from the list of mountables.
+[ -n "$mountedphones" ] && phones="$(for phone in $phones; do
+	for mounted in $mountedphones; do
+		escphone="$(escape "$phone")"
+		[[ "$mounted" =~ "$escphone" ]] && break 1
+	done && continue 1
+	echo "$phone"
+done)"
+
+# Check for drives.
+lsblkoutput="$(lsblk -rpo "uuid,name,type,size,label,mountpoint,fstype")"
+# Get all LUKS drives
+allluks="$(echo "$lsblkoutput" | grep crypto_LUKS)"
+# Get a list of the LUKS drive UUIDs already decrypted.
+decrypted="$(find /dev/disk/by-id/dm-uuid-CRYPT-LUKS2-* | sed "s|.*LUKS2-||;s|-.*||")"
+# Functioning for formatting drives correctly for dmenu:
+filter() { sed "s/ /:/g" | awk -F':' '$7==""{printf "%s%s (%s) %s\n",$1,$3,$5,$6}' ; }
+
+# Get only LUKS drives that are not decrypted.
+unopenedluks="$(for drive in $allluks; do
+	uuid="${drive%% *}"
+	uuid="${uuid//-}"	# This is a bashism.
+	[ -n "$decrypted" ] && 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/ *$//")"
+
+# Quit the script if a sequential command fails.
+set -e
+
+test -n "$alldrives"
+
+# Feed all found drives to dmenu and get user choice.
+chosen="$(echo "$alldrives" | dmenu -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 "$chosen" || return 1
+		notify-send "💾Drive Mounted." "$chosen mounted."
+		exit
+}
+
+case "$chosen" in
+	💾*)
+		chosen="${chosen%% *}"
+		chosen="${chosen:1}"	# This is a bashism.
+		parttype="$(echo "$lsblkoutput" | grep "$chosen")"
+		attemptmount || getmount
+		case "${parttype##* }" in
+			vfat) sudo -A mount -t vfat "$chosen" "$mp" -o rw,umask=0000 ;;
+			btrfs) sudo -A mount "$chosen" "$mp" ;;
+			*) sudo -A mount "$chosen" "$mp" -o uid="$(id -u)",gid="$(id -g)" ;;
+		esac
+		notify-send "💾Drive Mounted." "$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"
+
+		attemptmount || getmount
+		sudo -A mount "/dev/mapper/usb$num" "$mp" -o uid="$(id -u)",gid="$(id -g)"
+		notify-send "🔓Decrypted drive Mounted." "$chosen decrypted and mounted to $mp."
+		;;
+
+	📱*)
+		notify-send "❗Note" "Remember to allow file access on your phone now."
+		getmount
+		number="${chosen%%:*}"
+		number="${chosen:1}"	# This is a bashism.
+		sudo -A simple-mtpfs -o allow_other -o fsname="simple-mtpfs-$(escape "$chosen")" --device "$number" "$mp"
+		notify-send "🤖 Android Mounted." "Android device mounted to $mp."
+		;;
+esac
diff --git a/.local/bin/unmounter b/.local/bin/unmounter
new file mode 100755
index 0000000..7f1dbf5
--- /dev/null
+++ b/.local/bin/unmounter
@@ -0,0 +1,28 @@
+#!/bin/sh
+
+# Unmount USB drives or Android phones. Replaces the older `dmenuumount`. Fewer
+# prompt and also de-decrypts LUKS drives that are unmounted.
+
+set -e
+
+mounteddroids="$(grep simple-mtpfs /etc/mtab | awk '{print "📱" $2}')"
+lsblkoutput="$(lsblk -nrpo "name,type,size,mountpoint")"
+mounteddrives="$(echo "$lsblkoutput" | awk '($2=="part"||$2="crypt")&&$4!~/\/boot|\/home$|SWAP/&&length($4)>1{printf "💾%s (%s)\n",$4,$3}')"
+
+allunmountable="$(echo "$mounteddroids
+$mounteddrives" | sed "/^$/d;s/ *$//")"
+test -n "$allunmountable"
+
+chosen="$(echo "$allunmountable" | dmenu -i -p "Unmount which drive?")"
+chosen="${chosen%% *}"
+test -n "$chosen"
+
+sudo -A umount -l "/${chosen#*/}"
+notify-send "Device unmounted." "$chosen has been unmounted."
+
+# Close the chosen drive if decrypted.
+cryptid="$(echo "$lsblkoutput" | grep "/${chosen#*/}$")"
+cryptid="${cryptid%% *}"
+test -b /dev/mapper/"${cryptid##*/}"
+sudo -A cryptsetup close "$cryptid"
+notify-send "🔒Device dencryption closed." "Drive is now securely locked again."