add a link to the older version of Salsa in the document

[xffxff]

related to #448

As Salsa-2022 is no yet complete and it is still unstable, there are some users who continue to use the old version of Salsa, or prefer using it due to its more stable API. Therefore, I think it is necessary to re-deploy the book for the older version of Salsa.

I have deployed the book for the older version from commit 754eea8b5f8a31b1100ba313d59e41260b494225 of Salsa on https://old-salsa-rs.netlify.app/

[netlify]

❌ Deploy Preview for salsa-rs failed.

Name	Link
🔨 Latest commit	fa4dc3c
🔍 Latest deploy log	https://app.netlify.com/sites/salsa-rs/deploys/653dbdfdd98856000835827b

[oeb25]

Awesome! 👍

In regards to #448, I think this PR solves the issue for users of the older (i.e., "go read this instead"), while it unfortunately still doesn't avoid confusion for users of the new version.

[xffxff]

In regards to #448, I think this PR solves the issue for users of the older (i.e., "go read this instead"), while it unfortunately still doesn't avoid confusion for users of the new version.

@oeb25 Yes, you're correct. This PR doesn't completely address issue #448. Therefore, I updated the PR's description from "close 448" to "related to 448". This means that the issue will not be closed when the PR is merged.

[nikomatsakis]

Thanks for your patience. I am slowly (slowly) coming back online here. This looks like a good start. It'd be nice to modify the book here to just have both versions, I suppose, rather than redirecting to an external site. How hard would that be?

[xffxff]

It'd be nice to modify the book here to just have both versions, I suppose, rather than redirecting to an external site. How hard would that be?

@nikomatsakis I've set up the book to support both versions by utilizing URL paths: xxx/salsa2022 for the latest edition and xxx/salsa for the older one. You can review my deployed versions on Netlify:

• salsa2022: https://grand-meerkat-a99b5f.netlify.app or https://grand-meerkat-a99b5f.netlify.app/salsa2022/
• old salsa: https://grand-meerkat-a99b5f.netlify.app/salsa/

To make this work on our repo, we'll need to modify the publish directory from book/book/html to book/versions

My build settings:

I lack the permissions to make this change, but I believe you can assist :)

[nikomatsakis]

@xffxff this looks cool, yes, thank you! Let me look into making that change.

[nikomatsakis]

I updated the permissions and decided to throw the dice 🎲 and merge the PR. Let's see what happens!

[nikomatsakis]

@xffxff

Any thoughts ;)

[nikomatsakis]

Might be I need to modify the run netlify.sh too...?

[nikomatsakis]

Never mind, I think I see the problem.