add brew build script

bin/build_brew.sh

@@ -0,0 +1,21 @@
+#!/usr/bin/env bash
+
+### Bash Environment Setup
+# http://redsymbol.net/articles/unofficial-bash-strict-mode/
+# https://www.gnu.org/software/bash/manual/html_node/The-Set-Builtin.html
+# set -o xtrace
+set -o errexit
+set -o errtrace
+set -o nounset
+set -o pipefail
+IFS=$'\n'
+
+REPO_DIR="$( cd "$( dirname "${BASH_SOURCE[0]}" )" >/dev/null 2>&1 && cd .. && pwd )"
+
+source "$REPO_DIR/.venv/bin/activate"
+cd "$REPO_DIR/brew_dist"
+
+
+echo "[+] Building bottle"
+brew install --build-bottle ./archivebox.rb
+brew bottle archivebox