Improvment to auto install process when detecting error

[cderv]

This aims to fix #7252

This is another way to fix initial report of this problem at #7087 based on what we do in https://github.com/rstudio/tinytex R package

• Loading 'expl3.sty' aborted! is considered as any other error, and expl3.sty package will be looked for
• When triggerring install for a package, if already install we do run an update first
• The update included a rebuild of format tree with fmtutils (https://tug.org/texlive/doc/fmtutil.html) - which could be outdated following some tlmgr update

Trigerring CI to see if this works ok. The issue from #7252 is hard to reproduce and test, but we haven't seen it in TinyTeX for while, after the same fix rstudio/tinytex@5946a2a (rstudio/tinytex#291)

@yihui pinging you in case you want to have a look

[bhattmaulik]

I recently had the same issue. My tinytex installation is from the tinytex R package (tinytex::install_tinytex(bundle = "TinyTeX-2")). To solve it, I first updated the tlmgr (tinytex::tlmgr_update()). And finally, I also tried tinytex:::refresh_all. But none of them helped. Finally, I uninstalled and reinstalled tinytex, and then it got solved.

[cderv]

Thanks for sharing @bhattmaulik.

I also tried tinytex:::refresh_all

I am surprised this did not work... Did the issue happened only with Quarto or also with R Markdown ? (as you are mention tinytex R package, I am assuming you are a Rmd user too)

(tinytex::install_tinytex(bundle = "TinyTeX-2"))

Also this should be the full bundle with schem-full isn't it ? I does not expect this one to have some issue as no missing package should be installed... 🤔

[bhattmaulik]

(1) I didn't try R Markdown. You are right that I used to be an R Markdown user earlier, but now I have completely moved to quarto. But you have given me a good idea to debug the problem, if it happens next time. (2) TinyTeX-2 is a full bundle. So, I also didn't expect to have this error. I had the issue with expl3.sty, as you have mentioned in the first comment. In fact, my first attempt was to do tinytex::parse_install, but it said it couldn't find anything for this command. Only after that I followed the other steps, which I mentioned in my previous comment.

[cderv]

Ok thanks for the feedback. This may be indicated the issue is more complex that it seems.

Though tinytex::parse_install(file = "expl3.sty") should have done the right thing.

Anyhow, let see if this work ok.