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#!/bin/bash
shopt -s globstar nullglob dotglob
REPO="$(realpath "$(dirname "$0")")"


ignored() {
	case $1 in
	.gitignore|dots|.git|.git/*) return 0;;
	*) return 1;;
	esac
}


get() {
	for file in **; do
		ignored "$file" && continue
		[ -f "$HOME/$file" ] && cp "$HOME/$file" "$REPO/$file"
	done
}


put() {
	for file in **; do
		ignored "$file" && continue
		if [ -f "$HOME/$file" ]; then
			diff "$REPO/$file" "$HOME/$file" >/dev/null 2>/dev/null && continue
			cp "$HOME/$file" "$HOME/$file.bak.$(date +%Y%m%d)"
		fi
		cp "$REPO/$file" "$HOME/$file"
	done
}


clear() {
	for file in **; do
		ignored "$file" && continue
		for bak in "$HOME/$file".bak.*; do
			rm "$bak"
		done
	done
}


list() {
	for file in **; do
		ignored "$file" || echo "$file"
	done
}


case $1 in
get|pull) get;;
put|push) put;;
clear) clear;;
list) list;;
*) exit 1;;
esac