figures and caching

[shabbychef]

I am building an HTML doc, and am using caching to speed up computation. It seems that when I tweak some of the text and rebuild the document, the figures have been deleted and are not remade. For doc autorisk.qmd, it is looking for, and not finding, autorisk_files/figure-html/foo-1.png. That directory autorisk_files/figure-html is built and populated on the first run, but on a re-run it is apparently deleted first.

Not sure it is relevant, but I am using option self-contained: true.

[shabbychef]

(for now turning off caching in all figure chunks solves my immediate problem.)

[jjallaire]

The problem may be that we only prevent deletion of _files if the global cache option is set (as opposed to the option for individual chunks). Ideally we could be smart and not delete it in the case of chunk level cache directives. I'll convert this to an issue to track making sure that we do this.

[shabbychef]

FWIW, the global cache option is set in this document. There are no chunk level cache directives. (well, I added some as a workaround to this very problem, but ideally there would be none.)

[jjallaire]

Interesting. self-contained: true should be arranging to leave the _files dir alone. I know it did this at one time but perhaps this has regressed? I'll take a look. In the meantime if you set self-contained: false the cache should work as expected.

[jjallaire]

Sadly it looks like this is also happening w/ self-contained: false. Will get to the bottom of it soon!

[jjallaire]

Okay, this is now fixed here https://github.com/quarto-dev/quarto-cli/commits/main

Fix should be in tomorrow's build.