parameter clash for pkgdown: as_is: true

[GregorDeCillia]

Hello,

I am currently building vignettes for a package and run into issues when I try to use

---
pkgdown:
   as_is: true
output: html_vignette
---

together with a custom theme in _pkgdown.yml. It seems that the pkgdown theme is passed to the html_vignette function. However, html_vignette throws an error when the theme parameter is used.

Error in html_document(fig_width = fig_width, fig_height = fig_height, :
formal argument "theme" matched by multiple actual arguments
Calls: ... create_output_format -> do.call -> -> output_format
Execution halted

This error message is explained in detail in rstudio/rmarkdown#1110. Despite this issue being marked as solved, the only changes on the rmarkdown side was to update the documentation. Can this be resolved in pkgdown or should I issue this in the rmarkdown repository?

[hadley]

If you use as_is: true you're responsible for making an RMarkdown theme that works. Unfortunately we just don't have the resources to support every possible combination.

[GegznaV]

Unfortunately we just don't have the resources to support every possible combination.

You shouldn't support all possible combinations, but I think that there should be a possibility to use html_vignette in pkgdown with as_is: true. I created PR #1352 to address this issue.