deploy: upload a tar of the generated site for easy self-hosting.

The content of the tar is signed and can be verified with signed-pages,
exactly like the hosted version at client.etesync.com

Fixes #125

deploy.sh

@@ -11,4 +11,6 @@ yarn build
 
 sed -i "s#\(<script type=\"text/javascript\"\)#\1 integrity=\"sha384-$(shasum -b -a 384 build/static/js/main.*.js | xxd -r -p | base64 -w0)\" crossorigin=\"anonymous\"#" build/index.html
 ./page-signer.js build/index.html build/index.html
+# Create a source tarball
+bsdtar -czf build/etesync-web.tgz --exclude build/etesync-web.tgz -s /build/etesync-web/ build/*
 rsync -e "ssh -p ${SSH_PORT}" -P --delete -rvc -zz ${OUTPUTDIR}/ ${SSH_USER}@${SSH_HOST}:${SSH_TARGET_DIR}