Bash Braille Spinner

spinner.sh

#!/usr/bin/env bash

# Define an array of Braille patterns for a spinner
six_dot_cell_pattern=("⠙" "⠹" "⠸" "⠼" "⠴" "⠦" "⠧" "⠇")
eight_dot_cell_pattern=("⣾" "⢿" "⡿" "⣷" "⣯" "⢟" "⡻" "⣽")

# Set the pattern 
braille_spinner=("${eight_dot_cell_pattern[@]}") 

# Set the duration for each spinner frame (in seconds)
frame_duration=0.1

# Function to start the spinner in the background
start_spinner() {
  (
    spinner_index=0
    while :; do
      printf "\r%s " "${braille_spinner[spinner_index]}"
      spinner_index=$(( (spinner_index + 1) % ${#braille_spinner[@]} ))
      sleep "$frame_duration"
    done
  ) &
  spinner_pid=$!
  disown
}

# Function to stop the spinner with U+2800
stop_spinner() {
  kill -9 "$spinner_pid"  # Stop the spinner loop
  printf "\r%s " "⠀"  # Print U+2800 (Braille Pattern Blank) and move to the next line
  display_message "$1"
}

# Function to simulate a long-running task
long_running_function() {
  echo "Starting long-running function..."
  sleep 5  # Simulate work (replace with your actual work)
}

display_message() {
  if [ -n "$1" ]; then
    echo -e "\n$1"
  else
    echo -e "\nDone, Bitches!"
  fi 
}

# Call the start_spinner function before a long-running function
start_spinner

# Run your long-running function(s) here
long_running_function

# Call stop_spinner to stop the spinner when the long-running function is done
# You can pass a string with the function call to add a custom message
stop_spinner "Your functions are complete"

# Continue with other echo statements or tasks
echo "Other tasks..."

spinner_slim

#!/usr/bin/env bash
six_dot_cell_pattern=("⠙" "⠹" "⠸" "⠼" "⠴" "⠦" "⠧" "⠇")
eight_dot_cell_pattern=("⣾" "⢿" "⡿" "⣷" "⣯" "⢟" "⡻" "⣽")
braille_spinner=("${eight_dot_cell_pattern[@]}")
frame_duration=0.1
start_spinner() { ( spinner_index=0; while :; do printf "\r%s " "${braille_spinner[spinner_index]}"; spinner_index=$(( (spinner_index + 1) % ${#braille_spinner[@]} )); sleep "$frame_duration"; done ) & spinner_pid=$!; disown; }
stop_spinner() { kill -9 "$spinner_pid"; printf "\r%s " "⠀"; display_message "$1"; }
long_running_function() { echo "Starting long-running function..."; sleep 5; }
display_message() { if [ -n "$1" ]; then echo -e "\n$1"; else echo -e "\nDone, Bitches!"; fi; }
start_spinner; long_running_function; stop_spinner "Your functions are complete"; echo "Other tasks..."