A script to automate fetching folders for testing Map PRs for Minetetst Capture the Flag by rubenwardy.

pull.sh

#!/bin/bash

ctf_folder="capturetheflag"
temp_folder=$(mktemp -d)

usage() {
	echo "Usage: $0  [ -b BRANCH ] [ -n CTF_FOLDER_NAME ] <path/to/Minetest/folder> <fork repository>"
	echo "Options:"
	echo "  -b BRANCH: The branch used for the PR (default: origin)"
	echo "  -n CTF_FOLDER_NAME: Name of your CTF folder (default: capturetheflag)"
	echo "Arguments:"
	echo "  <path/to/Minetest/folder>: Absolute path to your Minetest folder"
  	echo "  <fork repository>: The link to the git repository of the fork by the PR author."
}

while getopts ":b:n:h" opt; do
	case $opt in
		b)
			branch="$OPTARG"
			;;
		n)
			ctf_folder="${OPTARG%/}"
			;;
		h)
			usage
			exit 0
			;;
		\?)
			echo "Invalid option -$OPTARG"
			usage
			exit 1
			;;
		:)
			echo "Option -$OPTARG requires an argument."
			usage
			exit 1
			;;
	esac
done

shift "$((OPTIND-1))"

if [ $# -ne 2 ]; then
	echo "Error: Two positional arguments are required."
	usage
	exit 1
fi

minetest_path="${1%/}"
fork_repo="$2"
maps_folder_path="${minetest_path}"/"games/${ctf_folder}/mods/ctf/ctf_map/maps"

git clone $fork_repo "$temp_folder"

if [ -n "$branch"  ]; then
	cd $temp_folder
	git switch "$branch"
fi

diff -rq --exclude=".git" "$maps_folder_path" "$temp_folder" | grep "Only in $temp_folder" | awk -F "Only in " '{print $2}' | sed "s/: /\//g "

changes=$(diff -rq --exclude=".git" "$maps_folder_path" "$temp_folder" | grep "Only in $temp_folder")

IFS=$'\n'
for line in $changes; do
  file_or_folder=$(echo "$line" | awk -F "Only in " '{print $2}')
  modified_file_or_folder=$(echo "$file_or_folder" | sed "s/: /\//g")
  echo "Changes detected: $modified_file_or_folder"
  
  read -p "Do you want to copy the modified file/folder to your maps folder path? (y/n): " applied_changes
  if [ "$applied_changes" == "y" ]; then
    subfolder=$(dirname "${modified_file_or_folder#$temp_folder}")
    echo "$subfolder"
    cp -r $modified_file_or_folder $maps_folder_path/$subfolder
    echo "Copied $modified_file_or_folder to $maps_folder_path"
  else
    echo "No changes copied over."
  fi
done

rm -rf $temp_folder