update_dots.sh

#!/usr/bin/env bash

set -e

# Default source and destination directories
SOURCE_DIR="$HOME/.config"
SCRIPT_DIR="$(dirname "$(realpath "$0")")"
DESTINATION_DIR="$SCRIPT_DIR"

# Default file and directory lists (relative to $SOURCE_DIR)
DEFAULT_FILE_LIST=("starship.toml")
DEFAULT_DIR_LIST=("atuin" "bat" "eza" "fd" "k9s" "navi" "ripgrep" "ripgrep-all" "scripts" "tealdeer")

# Backup file patterns to exclude
BACKUP_PATTERNS=(
    "*.bak"
    "*.backup"
    "*.back"
    "*.old"
    "*.orig"
    "*.save"
    "*.swp"
    "*.swo"
    "*.tmp"
    "*.temp"
    "*~"
    "*.backup.*"
    "*.*.backup"
    ".#*"
    "#*#"
)

# Function to check if file matches backup patterns
is_backup_file() {
    local filename="$1"
    for pattern in "${BACKUP_PATTERNS[@]}"; do
        if [[ "$filename" == $pattern ]]; then
            return 0
        fi
    done
    return 1
}

# Function to remove existing files
remove_files() {
    local dest_file="$DESTINATION_DIR/$1"

    # Skip backup files
    if is_backup_file "$(basename "$dest_file")"; then
        echo "Skipping backup file: $dest_file"
        return
    fi

    if [[ -f "$dest_file" ]]; then
        rm -f "$dest_file"
        echo "Removed existing file: $dest_file"
    fi
}

# Function to remove existing directories
remove_directories() {
    local dest_dir="$DESTINATION_DIR/$1"

    if [[ -d "$dest_dir" ]]; then
        rm -rf "$dest_dir"
        echo "Removed existing directory: $dest_dir"
    fi
}

# Function to copy files and modify permissions
copy_files() {
    local src_file="$SOURCE_DIR/$1"
    local dest_file="$DESTINATION_DIR/$1"

    # Skip backup files
    if is_backup_file "$(basename "$src_file")"; then
        echo "Skipping backup file: $src_file"
        return
    fi

    if [[ -f "$src_file" ]]; then
        cp -L "$src_file" "$dest_file"  # Use -L to dereference symbolic links
        chown "$USER" "$dest_file"
        chmod u+w "$dest_file"
        echo "Copied file: $src_file -> $dest_file"
    else
        echo "Warning: File $src_file does not exist."
    fi
}

# Function to copy directories recursively and modify permissions
copy_directories() {
    local src_dir="$SOURCE_DIR/$1"
    local dest_dir="$DESTINATION_DIR/$1"

    if [[ -d "$src_dir" ]]; then
        echo "Copying directory: $src_dir -> $dest_dir"
        if command -v rsync >/dev/null 2>&1; then
            # Build rsync exclude arguments from backup patterns
            local rsync_args=("-aL")
            for pattern in "${BACKUP_PATTERNS[@]}"; do
                rsync_args+=("--exclude=$pattern")
            done
            rsync "${rsync_args[@]}" "$src_dir/" "$dest_dir/"
        else
            cp -rfL "$src_dir" "$dest_dir"
            # Remove any backup files and directories that were copied
            for pattern in "${BACKUP_PATTERNS[@]}"; do
                find "$dest_dir" -name "$pattern" -delete 2>/dev/null || true
            done
        fi
        chown -R "$USER" "$dest_dir"
        find "$dest_dir" -type f -exec chmod u+w {} \;
        echo "Copied directory: $src_dir -> $dest_dir"
    else
        echo "Warning: Directory $src_dir does not exist."
    fi
}

# Remove existing files
for file in "${DEFAULT_FILE_LIST[@]}"; do
    remove_files "$file"
done

# Remove existing directories
for dir in "${DEFAULT_DIR_LIST[@]}"; do
    remove_directories "$dir"
done

# Ensure destination directory exists
mkdir -p "$DESTINATION_DIR"

# Copy default files
for file in "${DEFAULT_FILE_LIST[@]}"; do
    copy_files "$file"
done

# Copy default directories
for dir in "${DEFAULT_DIR_LIST[@]}"; do
    copy_directories "$dir"
done

echo "Files and directories copied successfully to $DESTINATION_DIR. Text replacement completed."

# if [[ -n $(git status --porcelain) ]]; then
#     git add .
#     git commit -m "Auto-update: $(date)"
#     git push origin main  # Change 'main' to your branch name if different
# else
#     echo "No changes to commit."
# fi