setup Travis to update daily

[bbest]

Hi @jasdumas,

Here are some notes from my last review of setting up Travis Continuous integration...

This is just a little note for future development, since now Travis supports virtual machines with R already installed. By not having to download and install R, this presents a big time savings for calculating OHI scores and results. Since only 1 hour is allotted for the use of these free virtual machines, use of the R virtual machine could make the difference in being able to finish or not, resulting in a pass or failure.

You'll notice that the first line in our existing .travis.yml (eg for gye) has:

language: c

The new one would have:

language: r

And the old directives using the travis-tool.sh:

before_install:
- curl -OL http://raw.github.com/craigcitro/r-travis/master/scripts/travis-tool.sh
- curl -OL http://raw.github.com/OHI-Science/ohi-webapps/master/ohi-travis-functions.R
- chmod 755 ./travis-tool.sh
- ./travis-tool.sh bootstrap
- sudo apt-get install pandoc

install:
- ./travis-tool.sh install_r zoo
- ./travis-tool.sh install_r psych
- ./travis-tool.sh install_r tidyr
- ./travis-tool.sh install_r brew
- ./travis-tool.sh install_r rmarkdown
- ./travis-tool.sh install_r httr
- ./travis-tool.sh install_r git2r
- ./travis-tool.sh install_github ohi-science/rCharts
- ./travis-tool.sh install_github ohi-science/ohicore@dev

would get replaced with:

before_install:
- curl -OL http://raw.github.com/OHI-Science/ohi-webapps/master/ohi-travis-functions.R

apt_packages:
- pandoc

r_packages:
- zoo
- psych
- tidyr
- brew
- rmarkdown
- httr
- git2r

r_github_packages:
- ohi-science/rCharts
- ohi-science/ohicore@dev

The big time savings will be from skipping:

- ./travis-tool.sh bootstrap

You can read more here:

• Travis CI: Building an R Project
• Porting to native R support in Travis · craigcitro/r-travis Wiki
• craigcitro/r-travis

[jasdumas]

Additional SO resource: https://stackoverflow.com/questions/23277391/how-to-publish-to-github-pages-from-travis-ci

[bbest]

And here's the Cron Jobs - Travis CI

[bbest]

• How to publish to Github Pages from Travis CI? -> Step-by-step example with HTTPS API Token in environment variable | StackOverflow

[bbest]

Quick Intro to Package Development with devtools - Check with Travis | Environmental Informatics at Bren