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+#!/bin/bash
+#
+# Setup RAPPOR analysis on Ubuntu Trusty (Google Cloud or otherwise).
+#
+# For the apps/api server, you need 'install-minimal'.  For the regtest, and
+# Shiny apps, we need a few more R packages (ggplot2, data.table, etc.).  They
+# cause versioning problems, so we keep them separate.
+#
+# Usage:
+#   ./setup.sh [function name]
+# If run without specifing any function it will run: install-most 
+# which should cover all the packages needed to run the demo.
+
+set -o nounset
+set -o pipefail
+set -o errexit
+
+native-packages() {
+  sudo apt-get update
+  # - build-essential for gcc compilers, invoked while installing R packages.
+  # - gfortran Fortran compiler needed for glmnet.
+  # - libblas-dev needed for limSolve.
+  # - python-dev is for building the fastrand extension
+  #
+  # NOTE: we get R 3.0.2 on Trusty.
+  sudo apt-get install build-essential gfortran libblas-dev r-base python-dev graphviz
+}
+
+r-packages() {
+  # Install as root so you can write to /usr/local/lib/R.
+
+  # glmnet, limSolve: solvers for decode.R
+  # RJSONIO, optparse: for decode_dist.R
+  # RUnit: for unit tests
+  # abind: for decode_test only
+  sudo R -e \
+    'install.packages(c("glmnet", "optparse", "limSolve", "RUnit", "abind", "RJSONIO"), repos="http://cran.rstudio.com/")'
+}
+
+# R 3.0.2 on Trusty is out of date with CRAN, so we need this workaround.
+install-plyr-with-friends() {
+  mkdir -p _tmp
+  wget --directory _tmp \
+    http://cran.r-project.org/src/contrib/Archive/Rcpp/Rcpp_0.11.4.tar.gz
+  wget --directory _tmp \
+    http://cran.r-project.org/src/contrib/Archive/plyr/plyr_1.8.1.tar.gz
+  sudo R CMD INSTALL _tmp/Rcpp_0.11.4.tar.gz
+  sudo R CMD INSTALL _tmp/plyr_1.8.1.tar.gz 
+  sudo R -e \
+    'install.packages(c("reshape2", "ggplot2", "data.table"), repos="http://cran.rstudio.com/")'
+}
+
+# Keep Shiny separate, since it seems to install a lot of dependencies.
+shiny() {
+  sudo R -e \
+    'install.packages(c("shiny"), repos="http://cran.rstudio.com/")'
+}
+
+#
+# Batch
+#
+
+install-minimal() {
+  native-packages
+  r-packages
+}
+
+# NOTE: hasn't yet been tested on a clean machine.
+install-most() {
+  install-minimal
+  install-plyr-with-friends
+}
+
+#
+# Shiny Apps / API Server
+#
+
+# After running one of the run_app.sh scripts, see if the app returns a page.
+shiny-smoke-test() {
+  curl http://localhost:6789/
+}
+
+# Then set up a "firewall rule" in console.developers.google.com to open up
+# "tcp:6789".  Test it from the outside.
+
+if test $# -eq 0 ; then
+  install-most
+else
+  "$@"
+fi