| ruby-2.3.1 |
See virtualstaticvoid/heroku-buildpack-r#105
heroku create --stack heroku-16
heroku buildpacks:add https://github.com/heroku/heroku-buildpack-ruby
heroku buildpacks:add https://github.com/virtualstaticvoid/heroku-buildpack-r.git#heroku-16
git push heroku master| require 'sinatra' | |
| require 'fileutils' | |
| # prevent RinRuby from attempting to initialize, as | |
| # the R executable needs to be overriddden | |
| # see https://github.com/virtualstaticvoid/rinruby/blob/master/lib/rinruby.rb#L789 | |
| R = :nil | |
| require 'rinruby' | |
| # initialize R interface, setting the "chroot" executable for R | |
| RInterface = RinRuby.new(:executable => "fakechroot fakeroot chroot /app/.root /usr/bin/R") | |
| # root page | |
| get '/' do | |
| # source the test.r script | |
| result = RInterface.eval("source('/app/test.r')") | |
| html = "<html>" | |
| html += "<head><title>R Code Test From A Ruby Sinatra Web Application</title></head>" | |
| html += "<body>" | |
| html += "<p>Running R code...</p>" | |
| begin | |
| html += "<p>Succeeded running R code</p>" | |
| html += "<pre>result = #{result}</pre>" | |
| html += "<pre>x = #{RInterface.x}</pre>" | |
| html += "<pre>sd(x) = #{RInterface.sdx}</pre>" | |
| rescue => e | |
| html += "<p>Failed running R code...</p>" | |
| html += "<p>#{e.message}</p>" | |
| end | |
| html += "</body>" | |
| html += "</html>" | |
| html | |
| end |
| require './application' | |
| run Sinatra::Application |
| ruby '2.3.1' | |
| source "http://rubygems.org" | |
| gem "bundler" | |
| gem "thin" | |
| gem "sinatra" | |
| gem "rinruby", :github => "virtualstaticvoid/rinruby", :branch => "master" | |
| gem "foreman", :group => :development |
| GIT | |
| remote: git://github.com/virtualstaticvoid/rinruby.git | |
| revision: 4b334969763467525797ffb2e1e47c378c78a8ef | |
| branch: master | |
| specs: | |
| rinruby (2.0.3) | |
| GEM | |
| remote: http://rubygems.org/ | |
| specs: | |
| daemons (1.2.3) | |
| eventmachine (1.2.0.1) | |
| foreman (0.82.0) | |
| thor (~> 0.19.1) | |
| rack (1.6.4) | |
| rack-protection (1.5.3) | |
| rack | |
| sinatra (1.4.7) | |
| rack (~> 1.5) | |
| rack-protection (~> 1.4) | |
| tilt (>= 1.3, < 3) | |
| thin (1.7.0) | |
| daemons (~> 1.0, >= 1.0.9) | |
| eventmachine (~> 1.0, >= 1.0.4) | |
| rack (>= 1, < 3) | |
| thor (0.19.1) | |
| tilt (2.0.5) | |
| PLATFORMS | |
| ruby | |
| DEPENDENCIES | |
| bundler | |
| foreman | |
| rinruby! | |
| sinatra | |
| thin | |
| RUBY VERSION | |
| ruby 2.3.1p112 | |
| BUNDLED WITH | |
| 1.12.5 |
| # | |
| # Example R code to install packages | |
| # See http://cran.r-project.org/doc/manuals/R-admin.html#Installing-packages for details | |
| # | |
| ########################################################### | |
| # Update this line with the R packages to install: | |
| my_packages = c() | |
| ########################################################### | |
| install_if_missing = function(p) { | |
| if (p %in% rownames(installed.packages()) == FALSE) { | |
| install.packages(p) | |
| } | |
| else { | |
| cat(paste("Skipping already installed package:", p, "\n")) | |
| } | |
| } | |
| invisible(sapply(my_packages, install_if_missing)) |
| web: bundle exec thin start -R config.ru -e ${RACK_ENV:-development} -p ${PORT:-3030} |
| # this will go to the log (stdout) | |
| print("Hello") | |
| # assign some variables | |
| x <- rnorm(100) | |
| sdx <- sd(x) |