Use a single language Fluent translation file for multiple sub-crates

[junglie85]

Currently, if I have multiple crates in a project that I want to translate, I need to have a .ftl file for each crate:

i18n
 |-en
    |-crate_a.ftl
    |-crate_b.ftl

What I'd like is:

i18n
 |-en.ftl

But would settle for:

i18n
 |-en
    |-all_crates.ftl

The main reason for this is that I want to use the same text across multiple sub-crates, but currently I need to specify this in multiple translation files, one for each crate. If I've misunderstood and this is already possible, how do I go about it?

If it's not currently possible, there is an option for gettext to combine multiple crate's pot, po and mo's into a single location with:

extract_to_parent = true
collate_extracted_subcrates = true

Can a similar approach be used for Fluent?

[kellpossible]

I think it's probably not possible, but open to contributions to implement this!

[alerque]

Would some action in build.rs at least be able to make copies of the shared assets for each crate?