.local-bin/scripts/update_brew_lists.sh
2025-05-24 17:31:39 -04:00

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#!/usr/bin/env bash
# Make sure HOMEBREW_PREFIX is set, else fallback to /opt/homebrew (common default on macOS ARM)
BREW_PREFIX="${HOMEBREW_PREFIX:-/opt/homebrew}"
BREW_CMD="$BREW_PREFIX/bin/brew"
BREW_LIST_DIR="$HOME/.local/bin/.brew_lists"
BREW_LIST="$BREW_LIST_DIR/brew_list.txt"
CASK_LIST="$BREW_LIST_DIR/cask_list.txt"
NEW_BREW_LIST="$BREW_LIST_DIR/brew_list.new.txt"
NEW_CASK_LIST="$BREW_LIST_DIR/cask_list.new.txt"
# Function to check if the lists are different
# Returns 0 if different, 1 if same
are_lists_different() {
diff -q "$1" "$2" >/dev/null 2>&1
return $((!$?)) # invert diff exit code because diff returns 0 if files same
}
# Function to update the brew and cask lists
update_lists() {
echo "Updating brew list..."
"$BREW_CMD" list --formula >"$NEW_BREW_LIST"
chmod 664 "$NEW_BREW_LIST"
echo "Updating cask list..."
"$BREW_CMD" list --cask >"$NEW_CASK_LIST"
chmod 664 "$NEW_CASK_LIST"
}
# Function to install Homebrew and packages
install_packages() {
# Install Homebrew if not installed
if ! command -v "$BREW_CMD" &>/dev/null; then
echo "Installing Homebrew..."
/bin/bash -c "$(curl -fsSL https://raw.githubusercontent.com/Homebrew/install/HEAD/install.sh)"
fi
# Install brew packages
if [ -s "$BREW_LIST" ]; then
echo "Installing brew packages..."
xargs "$BREW_CMD" install <"$BREW_LIST"
echo "Brew packages installed successfully."
fi
# Install cask packages
if [ -s "$CASK_LIST" ]; then
echo "Installing cask packages..."
xargs "$BREW_CMD" install --cask <"$CASK_LIST"
echo "Cask packages installed successfully."
fi
}
# Function to save lists to specified directories
save_lists() {
echo "Saving updated lists to specified directories..."
mv "$NEW_BREW_LIST" "$BREW_LIST"
mv "$NEW_CASK_LIST" "$CASK_LIST"
echo "Lists saved successfully."
}
# Function to commit changes to Git
commit_to_git() {
current_dir=$PWD
cd "$HOME/.local/bin" || exit
git pull
git add "$BREW_LIST" "$CASK_LIST"
git commit -m "Update brew lists" || echo "No changes to commit"
git push origin main
cd "$current_dir" || exit
}
# Check command-line arguments
while [[ $# -gt 0 ]]; do
case "$1" in
--install)
install_packages
exit 0
;;
--save-brew-dir)
shift
# This flag doesn't make sense in current script, remove or implement logic
;;
--save-cask-dir)
shift
CASK_LIST_DIR="$1"
;;
*)
echo "Invalid argument: $1"
exit 1
;;
esac
shift
done
# Ensure brew list directory exists
if [ -n "$BREW_LIST_DIR" ] && [ ! -d "$BREW_LIST_DIR" ]; then
mkdir -p "$BREW_LIST_DIR"
fi
# Ensure cask list directory exists
if [ -n "$CASK_LIST_DIR" ] && [ ! -d "$CASK_LIST_DIR" ]; then
mkdir -p "$CASK_LIST_DIR"
fi
# Update the lists
update_lists
# Check if the lists have changed
if are_lists_different "$NEW_BREW_LIST" "$BREW_LIST" || are_lists_different "$NEW_CASK_LIST" "$CASK_LIST"; then
# Lists have changed, save the updated lists
save_lists
# Commit changes to Git
commit_to_git
else
echo "No changes in brew or cask lists detected."
fi