Adds skeleton for the initial crates for PartiQL.

[almann]

Also adds ignore file.

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[almann]

If helpful this is the differences between the Cargo.toml in the sub-crates below:

❯ for X in partiql-*/Cargo.toml; do diff partiql/Cargo.toml $X; done
2c2
< name = "partiql"
---
> name = "partiql-eval"
4c4
< description = "PartiQL in Rust"
---
> description = "PartiQL Expression Evaluator"
2c2
< name = "partiql"
---
> name = "partiql-irgen"
4c4
< description = "PartiQL in Rust"
---
> description = "PartiQL IR Generator"
2c2
< name = "partiql"
---
> name = "partiql-parser"
4c4
< description = "PartiQL in Rust"
---
> description = "PartiQL Parser"
2c2
< name = "partiql"
---
> name = "partiql-rewriter"
4c4
< description = "PartiQL in Rust"
---
> description = "PartiQL Rewriter Framework"

[dlurton]

I see that you have a LICENSE file for each of the crates. Does there also need to be one at the root of the project as well?

Do we need README.md at the root and possibly also in each of the crate directories as well? If not in the crate directories, I think the root README.md should list each of the crates and have a brief description of each.

Otherwise LGTM.

[almann]

I see that you have a LICENSE file for each of the crates. Does there also need to be one at the root of the project as well?

Do we need README.md at the root and possibly also in each of the crate directories as well? If not in the crate directories, I think the root README.md should list each of the crates and have a brief description of each.

We don't, futures sub-crates just refers to the parent's README. The LICENSE file is a symlink.

[alancai98]

nit: Should the homepage of this crate/package link to the subdirectory .../partiql-eval? Similarly for the other crates.

[almann]

Good question futures is where I cribbed this from, it is the example in the edition guide.

To answer your question though, in that workspace, there is just one home page for all the sub-crates.

[almann]

I am motivated to follow the above because I don't actually want to maintain N READMEs