index.Rmd

---
layout: page
title: Pull Request Performance reports
tagline: 
---

```{r preample, include=FALSE}

#
# (c) 2012 -- 2016 Georgios Gousios <gousiosg@gmail.com>
#
# BSD licensed, see LICENSE in top level dir
#

projectsjs = paste(apply(projects, 1, function(x){sprintf("'%s-%s'", x[1], x[2])}), collapse = ",")
projectsmd = paste(apply(projects, 1, function(x){sprintf("[%s/%s](/pullreq-perf/%s-%s/)", x[1], x[2], x[1], x[2])}), collapse="\n")
```

See here some reports for popular repositories:

<div class="btn-toolbar">
<a class="btn" href="/pullreq-perf/rails-rails/">Ruby on Rails</a>
<a class="btn"  href="/pullreq-perf/ipython-ipython/">IPython</a>
<a  class="btn" href="/pullreq-perf/angular-angular.js/">Angular.js</a>
<a  class="btn" href="/pullreq-perf/nodejs-node/">Node.js</a>
<a  class="btn" href="/pullreq-perf/jquery-jquery/">JQuery</a>
<a  class="btn" href="/pullreq-perf/Homebrew-homebrew/">Homebrew</a>
<a  class="btn" href="/pullreq-perf/akka-akka/">Akka</a>
<a  class="btn" href="/pullreq-perf/rstudio-shiny/">Shiny</a>
</div>
<div class="btn-toolbar">
<a  class="btn" href="/pullreq-perf/mbostock-d3/">D3.js</a>
<a  class="btn" href="/pullreq-perf/bartaz-impress.js/">impress.js</a>
<a  class="btn" href="/pullreq-perf/jekyll-jekyll/">Jekyll</a>
<a  class="btn" href="/pullreq-perf/django-django/">Django</a>
<a  class="btn" href="/pullreq-perf/antirez-redis/">Redis</a>
<a  class="btn" href="/pullreq-perf/bitcoin-bitcoin/">Bitcoin</a>
<a  class="btn" href="/pullreq-perf/ReactiveX-RxJava/">RxJava</a>
<a  class="btn" href="/pullreq-perf/tensorflow-tensorflow/">Tensorflow</a>

</div>

<label for="projectSearch">Or search for project repository (e.g. akka-akka): </label>
<span>
<input id="projectSearch" type="search" data-provide="typeahead" />
<button id="go" type="button" class="btn btn-default">Go</button>
</span>
<script type="text/javascript">
  projects = [`r projectsjs`];

  $("#projectSearch").typeahead({
    source: projects
  });

  $("#go").click(function(){
    if ($("#projectSearch").val() != "") {
      window.location = "http://ghtorrent.org/pullreq-perf/" + $("#projectSearch").val();
    }
  });

</script>

### What is this report about?

The report presents data on various aspects of pull request related activity 
within a project repository, with a special focus on how open the project
is to external contributions.

### How did you choose the projects to analyze?

As a starting point, I used the 
[repository set](https://github.com/gousiosg/pullreqs/blob/master/projects.txt) 
that I also use for my
[research](http://www.gousios.gr/bibliography/GPD14.html) 
[work](http://www.gousios.gr/bibliography/GZ14.html).
Then, I added to this selection, the top 1000 repositories by number of stars
as reported by the GHTorrent database. I also added the top 50 projects in
terms of 
[total contributions received](http://www.gousios.gr/blog/The-triumph-of-online-collaboration/).
The actual list of projects can be found
[here](https://github.com/gousiosg/ghtorrent.org/blob/master/pullreq-perf/projects.txt) 
or by clicking on the "Show all repos" button below.

### How did you build it?

I used R to query GHTorrent's main MySQL database, then piped the results
through [knitr](http://yihui.name/knitr/) templates which use
[ggplot2](ggplot2.org/) for generating the nice plots.
You can find the code [here](https://github.com/ghtorrent/ghtorrent.org/tree/master/pullreq-perf):

### My repository is not included!

You can [send me an email](mailto:gousiosg@gmail.com) and I will make sure your
repository will be included in the next round of report generation. You can
also [edit this file](https://github.com/ghtorrent/ghtorrent.org/blob/master/pullreq-perf/projects.txt) and send a pull request.

### The report for my project is just plain wrong!

If you have time to explain to me what is wrong, I would appreciate if
[send me an email](mailto:gousiosg@gmail.com) and I will fix
the issue.

<button type="button" class="btn btn-info" data-toggle="collapse" data-target="#allrepos">
  Show all repos
</button>

<div id="allrepos" class="collapse">
<small>
{% markdown %}
`r projectsmd`
{% endmarkdown %}
</small>
</div>


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