On 10/07/2018 11:44 AM, Witold E Wolski wrote:
Dear List,
I am working on moving some Rmarkdown reports into the vignettes
folder of a package. While I was able to solve to problem of
parametrized reports in vignettes folder thanks to your invaluable
help (Thank you), I am now struggling with the following problem.
One of the reports which I am moving to vignettes includes the following code :
```{r}
child_docs <- "Grp2Analysis_MissingInOneCondtion.Rmd_t"
if(TRUE){
child_docs <- "Grp2Analysis_Empty.Rmd_t"
}
```
```{r includeMissingInOne, child = child_docs}
```
# this is line 351 from the error message
which depending on a test outcome includes one or the other Rmarkdown
document into the main document.
While this report renders executing rmarkdown::render or
devtools::build_vignettes, it fails when building the package with
devtools::build or R CMD build
given the following error:
Error in eval(x, envir = envir) : object 'child_docs' not found
Warning in readLines(if (is.character(input2)) { :
cannot open file './child_docs': No such file or directory
Quitting from lines 351-351 (./child_docs)
Error in readLines(if (is.character(input2)) { :
cannot open the connection
ERROR: installing vignettes failed
* removing
'C:/Users/wolski/AppData/Local/Temp/RtmpIti891/Rinst2cec49ca2170/SRMService'
In R CMD INSTALL
Since you didn't give a path to that file, it will use the current
working directory, which might be a temporary directory used during the
package installation. Since you want this to work as a vignette, you
need to include the child docs in your package. One way to do that is
to put them in a new directory called "inst/children", which will be
installed to "children" when your package is installed. Then the
vignette can find the file as
system.file(file.path("children", child_docs), package = "yourpackage")
You could also put them in the "vignettes" directory, but there are
special rules for how files there are installed or not, so I'd recommend
against it.
Duncan Murdoch
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