Pre-build script support

[jparisu]

Description

I would like to make some complex variations over my project depending on the profile used to render. So far it is supported to make something visible or not, but I would like to do more "intelligent" stuff like changing some words or reorder things.
Let's say, for example, I would to add the word TOP to every chapter title when I use profile "top".

In formats that render to .html this could be handled by customizing a .js file. But when rendering a document to .pdf this kind of behavior is not possible to replicate inside quarto (outside quarto I can always create a over-script that make the modifications over the source files and call render).
Also, these changes could be also applied to the intermediate .tex files auto-generated, instead of the source ones.

Describe the solution you'd like
Introduce a new hook, such as before-build or after-latex, that allows users to specify scripts or commands to be executed before starting the process, or immediately after the LaTeX file is generated and before the final build process commences. This hook would enable users to perform tasks like custom LaTeX modifications, additional formatting, or integration with other tools.

[mcanouil]

You mean pre and post render scripts? And profiles?

• https://quarto.org/docs/projects/scripts.html#pre-and-post-render
• https://quarto.org/docs/projects/profiles.html

What exactly is not covered by those features?

Note that if you want to handle LaTeX compilation yourself, then ask for that by setting format: latex.

[jparisu]

That is totally my fault, I did not find that in the documentation, neither could find any clue in blogs online.
I understand I can use that and check inside the script the profile used by environment variable, right?

Sorry and thank you for the great work you do.