Add direnv install and config

direnv/.config/bash/bashrc.d/direnv.sh

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+eval "$(direnv hook bash)"

direnv/.config/zsh/zshrc.d/direnv.zsh

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+eval "$(direnv hook zsh)"

direnv/.local/bin/install-direnv-home

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+#!/usr/bin/env bash
+
+# shellcheck disable=SC1090
+source "${XDG_DATA_HOME}/buddy-up/includes/utils.sh"
+
+APP=direnv
+VERSION=${VERSION:-2.28.0}
+DATA_DIR="${XDG_DATA_HOME}/apps/releases"
+DEST_DIR="${DATA_DIR}/${APP}/${VERSION}"
+URL=https://github.com/direnv/direnv/releases/download/v${VERSION}/direnv.$(get_os)-$(get_arch)
+
+if [[ ! -d "${DEST_DIR}" ]] ; then
+	TMP_DIR=$(mktemp -d)
+	OUTPUT="${TMP_DIR}/${APP}"
+	curl --location --silent --output "${OUTPUT}" "${URL}"
+	mkdir -p "${DEST_DIR}"
+	chmod 755 "${OUTPUT}"
+	mv -v "${OUTPUT}" "${DEST_DIR}/${APP}"
+	rm -rf "${TMP_DIR}"
+fi
+
+cd "${DATA_DIR}/${APP}" || exit 1
+[[ -s current ]] && unlink current
+ln -s "${VERSION}" current
+
+if [[ -L "$XDG_BIN_HOME/${APP}" ]]; then
+	unlink "$XDG_BIN_HOME/${APP}"
+fi
+
+cd "${XDG_BIN_HOME}" || exit 1
+REL_LINK="$(relative_path "${XDG_BIN_HOME}" "${DATA_DIR}/${APP}/current/${APP}")"
+[[ -L "${APP}" ]] || ln -s "${REL_LINK}" "${APP}"