gist_create(file, knit = TRUE, source = TRUE) should work for an R script

[jennybc]

Riffing on this example from gist_create():

file <- system.file("examples", "stuff.Rmd", package = "gistr")
gist_create(file, knit=TRUE, include_source=TRUE)

I define an R script like so:

my_code <-"
#' ---
#' output: md_document
#' ---

#' I shall generate random numbers.
x <- rnorm(1000)

#' And I shall summarize them.
summary(x)"
#EDITED LATER! commenting out my initial garbled code and inserting what I meant :(
#my_code_file <- writeLines(my_code, file.path("~", "tmp", "foo.R"))
my_code_file <- file.path("~", "tmp", "foo.R")
writeLines(my_code, my_code_file)

and I would expect something like this to work:

gist_create(my_code_file, description = "My first R code gist via gistr",
            knit = TRUE, include_source = TRUE)

But instead I get this:

> gist_create(my_code_file, description = "My first R code gist via gistr",
+             knit = TRUE, include_source = TRUE)
Error in readLines(if (is.character(input2)) { : 
  object 'input2' not found

Same result if I remove the YAML front matter, so that's not the problem.

[sckott]

@jennybc Thanks for this. I'll take a look...

[sckott]

working on this, but also noticed issues with binary files (images) created during knit process - trying to get that solved too

[sckott]

@jennybc would you normally generate the md from that file with rmarkdown package (using render())? or knitr

[jennybc]

Honestly I would click the button in RStudio, in this context. So I think that means render().

[sckott]

@jennybc okay, reinstall from master, then try it again, e.g.,

file <- system.file("examples", "example1.R", package = "gistr")
cat(readLines(file), sep = "\n") # peek at file
gist_create(file, knit = TRUE)

[jennybc]

Yes it works! But … I like this example even more because I always want the gist to have source and pretty thing.

gist_create(file, description = "my description", knit = TRUE, include_source = TRUE)

Thanks.

[jennybc]

I just realized how garbled up my original example was. Good work figuring out what I meant to post.

So it seems the YAML front matter is quite important. Omit it and the knitted output you get in the gist is the html. How often would anyone want that? IDK but food for thought ….. Control via an argument like output_format of render() and default to markdown? I don't need a reply.

[sckott]

@jennybc just to clarify, are you saying that sometimes users may not have the front matter, so we should default to markdown output, but allow user to control via a parameter?

[jennybc]

Yes exactly. But maybe I am atypical? I basically always want markdown. In addition to or instead of HTML. Even more so for a gist than in other contexts.

[sckott]

Right, okay. I'll play around with that, #34