Having nested elements on blogdown/hugo archetypes

llrs · January 29, 2022, 12:08pm

I have an archetypes for talks with some content like this on archetypes/talk.md:

links:
  - icon: images
    icon_pack: fas
    name: slides
    url:
  - icon: github
    icon_pack: fab
    name: code
    url:
  - icon: youtube
    icon_pack: fab
    name: video
    url:

However, the generate talk using this template loses the "- " in front of the icon. It ends up like this:

links:
  icon: images
  icon_pack: fas
  name: slides
  url: ~
  icon: github
  icon_pack: fab
  name: code
  url: ~
  icon: youtube
  icon_pack: fab
  name: video
  url: ~

But this is invalid yaml as there are duplicated map keys and the content with tabs has been indented the same as icon.

Is there a way to escape this? I tried adding it like this [icon: youtube] adding more indentation, escaping it with \- and \--, but all these fail for one reason or another . I haven't found how to write the right format on the official documentation from Hugo or blogdown (where the only documentation of this is on templates but I couldn't find anything about how to write them).
Thanks

cderv · January 31, 2022, 9:33am

This looks like a bug in blogdown It is possible that we are processing the archetype but not sure.
Could be Hugo too.

Which blogdown version are you using ? Which is the Hugo version ? Are you using default behavior of blogdown or do you have specific customization ?

the generate talk using this template

The HTLM file ?

llrs · January 31, 2022, 9:35pm

Thanks for the fast reply, I'm using hugo version 0.91.2, blogdown 1.7 on R 4.1.2.
I have on my .Rprofile the following configuration of blogdown (aside from that I don't think I have anything else, but you can check my blog source code ):

options(blogdown.author = "Lluís Revilla Sancho",
        blogdown.ext = ".Rmd",
        blogdown.knit.on_save = TRUE,
        blogdown.hugo.version = "0.91.2",
        bitmapType = "cairo",
        xfun.bg_process.verbose = TRUE,
        blogdown.use.processx = FALSE)

When I say to generate a talk using this template I mean the *.Rmd file created by the blogdown:::new_post_adding() selecting the archetype the one with links: - icon: ..... That *.Rmd file doesn't contain the -.

cderv · February 7, 2022, 11:25am

yes I believe this is an issue in blogdown. There is a modify_yaml used to add fields in the archetype for the post created and this function does correctly handle the YAML.

I have created an issue with a reprex in here:

github.com/rstudio/blogdown

New post writes incorrect yaml if archetype contains yaml unnamed list

opened 11:24AM - 07 Feb 22 UTC

closed 05:33PM - 16 Feb 22 UTC

cderv

bug

Take this `test.Rmd` file ```markdown --- links: - icon: images icon…_pack: fas name: slides url: - icon: github icon_pack: fab name: code url: --- Content ``` `new_post()` will at some point try to modify the YAML header, and this is where we loose the correct YAML format: ``` r save_copy <- file.copy("test.Rmd", "test.Rmd.save") xfun::file_string("test.Rmd") #> --- #> links: #> - icon: images #> icon_pack: fas #> name: slides #> url: #> - icon: github #> icon_pack: fab #> name: code #> url: #> --- #> #> Content blogdown:::modify_yaml("test.Rmd") xfun::file_string("test.Rmd") #> --- #> links: #> icon: images #> icon_pack: fas #> name: slides #> url: ~ #> icon: github #> icon_pack: fab #> name: code #> url: ~ #> --- #> #> Content rmarkdown::yaml_front_matter("test.Rmd") #> Error in yaml::yaml.load(..., eval.expr = TRUE): Duplicate map key: 'icon' # restore file.rename("test.Rmd.save", "test.Rmd") #> [1] TRUE ``` All the `-` in front of the YAML list item are removed which leads to incorrect YAML. _First reported in https://community.rstudio.com/t/having-nested-elements-on-blogdown-hugo-archetypes/127761/2 by @llrs_

llrs · February 7, 2022, 1:19pm

Many thanks, I hope that the fix is easy (and looking forward to the feature of keeping comments).