Add todo dmenu script

home/.local/bin/scripts/dmenu/todo

@@ -0,0 +1,36 @@
+#!/bin/sh
+# This is inspired by dmenu's todo script made by suckless
+#
+# Manage TODO tasks in dmenu by writing them, remove by selecting
+# an existing entry
+#
+# Configurable variables
+# ---------------------------------------------------------------------
+
+FILE="${XDG_DATA_HOME:-$HOME/.local/share}/todos"
+PROMPT="Add/delete a task: "
+
+# Logic
+# ---------------------------------------------------------------------
+mkdir -p "$(dirname $FILE)"
+touch "$FILE"
+
+height=$(wc -l "$FILE" | awk '{print $1}')
+
+# Run dmenu and keep restarting it until it returns an empty output
+cmd=$(dmenu -l "$height" -p "$PROMPT" "$@" < "$FILE")
+while [ -n "$cmd" ]; do
+    # If the output matched an existing TODO, remove it
+    if grep -q "^$cmd\$" "$FILE"; then
+        grep -v "^$cmd\$" "$FILE" > "$FILE.$$"
+        mv "$FILE.$$" "$FILE"
+        height=$(( height - 1 ))
+    # If the output didn't match an existing TODO, it's a new one, add it
+    else
+        echo "$cmd" >> "$FILE"
+        height=$(( height + 1 ))
+    fi
+
+    # Keep restarting until empty output
+    cmd=$(dmenu -l "$height" -p "$PROMPT" "$@" < "$FILE")
+done