cderv

# test file
sample_chunk <- "
```{r hello, testing=as.logical(1), another=1 + 1}
1 + 1
```"
file = "sample.Rmd"
writeLines(sample_chunk, con = file)
foo_hook = function(before, options, envir) {
  # only run after the chunk
  if (before) return()

cderv

Simple R script that grabs the opened issues from a github repo :

$ github_issues hadley/dplyr
   number           user                                                         title                labels
1      98         hadley                                   Setup databases with travis           enhancement
2      97         hadley                                               Unique operator           enhancement
3      96         hadley                           Implement right join and outer join           enhancement
4      95 romainfrancois                                             Hybrid evaluation enhancement, internal
5      94         hadley                 Make sure all vignettes work from R CMD check                   bug