Move deb packing under deb folder

deb/install.sh

@@ -0,0 +1,36 @@
+#!/bin/bash
+
+set -ex
+
+VERSION=`cat VERSION`
+DEB_FILE=protonmail-bridge_${VERSION}_amd64.deb
+
+# Install dependents
+apt-get update
+apt-get install -y --no-install-recommends socat pass
+
+# Build time dependencies
+apt-get install -y wget binutils xz-utils
+
+# Repack deb (remove unnecessary dependencies)
+mkdir deb
+cd deb
+wget https://protonmail.com/download/${DEB_FILE}
+ar x -v ${DEB_FILE}
+mkdir control
+tar xvfJ control.tar.xz -C control
+sed -i "s/^Depends: .*$/Depends: libsecret-1-0, libgl1-mesa-glx/" control/control
+cd control
+tar cvfJ ../control.tar.xz .
+cd ../
+ar rcs -v ${DEB_FILE} debian-binary control.tar.xz data.tar.xz
+cd ../
+
+# Install protonmail bridge
+apt-get install -y --no-install-recommends ./deb/${DEB_FILE}
+
+# Cleanup
+apt-get purge -y wget binutils xz-utils
+apt-get autoremove -y
+rm -rf /var/lib/apt/lists/*
+rm -rf deb