`QUARTO_VERSION_REQUIREMENT` env var

[cscheid]

(cc @jmcphers)

Quarto should observe and respect QUARTO_VERSION_REQUIREMENT. When provided, this would contain a semver-compatible string that Quarto would use as a self-check. When Quarto's own version is incompatible with that provided, Quarto should issue an appropriate warning.

[sasja-san]

Would this be something also placed in the YML? One thing I really like about Quarto is that I don't need to create a giant bash script just to build my docs. It's the main selling point over pandoc.

[cscheid]

@sasja-san This feature is mostly for environments to ask Quarto to refuse running. That can be helpful in specific deployment situations.

The feature you're asking for is already supported under quarto-required, since Quarto 1.2: https://quarto.org/docs/download/changelog/1.2/index.html#miscellaneous. It works in extension declarations and in every document/project top level.

[cscheid]

Closed by 00249a4