Zsh Function for Android Drawable Copy Script

copy_drawables.sh

# ==============================================================================
# copy_drawables
# ==============================================================================
#
# A small zsh helper function for running the Android Drawable Resource Copy
# Assistant from anywhere in the terminal.
#
# This function wraps the main Bash script:
#
#   ~/scripts/copy_drawable_resources.sh
#
# Instead of manually going into the destination `res` folder and running the
# Bash script, you can simply run:
#
#   copy_drawables <source-folder> <destination-res-folder>
#
# ------------------------------------------------------------------------------
# Usage
# ------------------------------------------------------------------------------
#
# 1. From inside Android `res` folder:
#
#   cd app/src/main/res
#   copy_drawables ~/Downloads/source-res
#
# 2. From anywhere:
#
#   copy_drawables ~/Downloads/source-res ~/AndroidProjects/MyApp/app/src/main/res
#
# ------------------------------------------------------------------------------
# Parameters
# ------------------------------------------------------------------------------
#
# $1 - Source folder
#      The folder that contains drawable folders like:
#        drawable/
#        drawable-mdpi/
#        drawable-hdpi/
#        drawable-xhdpi/
#        drawable-xxhdpi/
#        drawable-xxxhdpi/
#
# $2 - Destination Android res folder
#      Optional.
#      If not provided, the current directory will be used.
#
# ------------------------------------------------------------------------------
# Setup
# ------------------------------------------------------------------------------
#
# 1. Save the main Bash script at:
#
#      ~/scripts/copy_drawable_resources.sh
#
# 2. Make it executable:
#
#      chmod +x ~/scripts/copy_drawable_resources.sh
#
# 3. Add this function to:
#
#      ~/.zshrc
#
# 4. Reload zsh:
#
#      source ~/.zshrc
#
# ------------------------------------------------------------------------------
# Creator
# ------------------------------------------------------------------------------
#
# Crafted by Prabhat Pandey
#
# Built with love for Android developers who frequently copy drawable assets
# between projects, exported design folders, and resource bundles.
#
# Because manually copying drawable-mdpi, drawable-xhdpi, drawable-xxhdpi...
# one by one is not productivity. It is punishment.
#
# ==============================================================================

copy_drawables() {
  local source_dir="$1"
  local dest_dir="${2:-$(pwd)}"
  local script_path="$HOME/scripts/copy_drawable_resources.sh"

  # ---------------------------------------------------------------------------
  # Validate source input.
  # ---------------------------------------------------------------------------

  if [[ -z "$source_dir" ]]; then
    echo "❌ Source folder is required."
    echo ""
    echo "Usage:"
    echo "copy_drawables /path/to/source-folder"
    echo "copy_drawables /path/to/source-folder /path/to/destination-res-folder"
    return 1
  fi

  # ---------------------------------------------------------------------------
  # Validate source directory.
  # ---------------------------------------------------------------------------

  if [[ ! -d "$source_dir" ]]; then
    echo "❌ Source folder does not exist:"
    echo "$source_dir"
    return 1
  fi

  # ---------------------------------------------------------------------------
  # Validate destination directory.
  # ---------------------------------------------------------------------------

  if [[ ! -d "$dest_dir" ]]; then
    echo "❌ Destination folder does not exist:"
    echo "$dest_dir"
    return 1
  fi

  # ---------------------------------------------------------------------------
  # Validate main script path.
  # ---------------------------------------------------------------------------

  if [[ ! -f "$script_path" ]]; then
    echo "❌ Script not found:"
    echo "$script_path"
    echo ""
    echo "Please make sure copy_drawable_resources.sh exists at:"
    echo "~/scripts/copy_drawable_resources.sh"
    return 1
  fi

  # ---------------------------------------------------------------------------
  # Run the main Bash script from inside the destination res folder.
  #
  # The Bash script treats the current working directory as the destination.
  # That is why we temporarily cd into the destination folder here.
  # ---------------------------------------------------------------------------

  (
    cd "$dest_dir" || exit 1
    bash "$script_path" "$source_dir"
  )
}