# for history
export HISTFILE="$HOME/.history"
export HISTSIZE=10000
export HISTFILESIZE=20000
export HISTCONTROL=ignoredups:ignorespace

# terminal
export GPG_TTY=$(tty)
export COLORTERM=truecolor

# gpg
export GPG_KEY="BBA6732C9C740D27"

# editors, pagers, aliases, funcs
export EDITOR="mg"
export VISUAL="mg"
export PAGER="less"
export MANPAGER="less -R"

alias ls='ls -p'
alias feed='sfeed_plain ~/.sfeed/feeds/* | less -S'

gpgsign() {
	if [ $# -eq 0 ]; then
		echo "err: bad usage."
		return 2
	fi

	local binary_mode=0
	local file=""

	while [ $# -gt 0 ]; do
		case "$1" in
			-b)
				binary_mode=1
				shift
				;;
			-*)
				echo "err: not a option '$1'."
				return 2
				;;
			*)
				file="$1"
				shift
				;;
		esac
	done

	if [ -z "$file" ]; then
		echo "err: no filename specified."
		return 1
	fi

	local backup_file="${file}.bak.$$"
	cp "$file" "$backup_file" || return 1

	local temp_file=$(mktemp -p /tmp gpgsign.XXXXXX) || {
		rm -f "$backup_file"
		return 1
	}

	trap "rm -f '$temp_file' '$backup_file'" EXIT INT TERM

	local sign_cmd="gpg --batch --yes --clearsign"
	[ $binary_mode -eq 1 ] && sign_cmd="gpg --batch --yes --sign"
	
	echo "signing file..."
	$sign_cmd -u "$GPG_KEY" -o "$temp_file" "$file" 2>/dev/null || {
		echo "err: failed to sign."
		mv "$backup_file" "$file"
		rm -f "$temp_file"
		return 1
	}

	if gpg --verify "$temp_file" 2>/dev/null; then
		mv "$temp_file" "$file" && rm -f "$backup_file"
		echo "ok: signed successfully."
		trap - EXIT INT TERM
		return 0
	else
		echo "err: verification failed"
		mv "$backup_file" "$file"
		rm -f "$temp_file"
		return 1
	fi
}

export PS1="> "