#!/bin/bash
# Install all packages from this machine via pacman.
# --needed skips already-installed packages.
# Only leaf packages are listed; dependencies are pulled in automatically.

SCRIPT_DIR="$(cd "$(dirname "$0")" && pwd)"
PACKAGE_FILE="$SCRIPT_DIR/packages.txt"

if [[ ! -f "$PACKAGE_FILE" ]]; then
    echo "Error: $PACKAGE_FILE not found"
    exit 1
fi

# Read packages from file, skipping blank lines and comments
mapfile -t packages < <(grep -v '^\s*#' "$PACKAGE_FILE" | grep -v '^\s*$')

if [[ ${#packages[@]} -eq 0 ]]; then
    echo "No packages found in $PACKAGE_FILE"
    exit 1
fi

echo "Installing ${#packages[@]} packages..."
sudo pacman -S --needed "${packages[@]}"