How am I supposed to upload and use lux libraries?

[rodamaral]

Hello!

I made a very simple library under src/main.lua, which returns a table. It's not an app, but something that should be required by others. When I run lx upload (as per the tutorial), the name-version-1.rockspec is uploaded to the LuaRocks website, but the .rock file is not.

In another lx project, if I execute luarocks install name --tree folder/, it works.
However, if I use lx add name, it fails with:

Error: syncing dependencies with the project lockfile failed.
Caused by:
    failed to build luxdummy1: IO operation failed: No such file or directory (os error 2)

Additionally, the .lux/ folder for this project contains empty lib/ and src/ folders.

So my questions are:

• Am I supposed to use the LuaRocks CLI directly to upload the .rock file generated by lx pack?
• How should the [build] fields look like?

[mrcjkb]

Hey 👋

is uploaded to the LuaRocks website, but the .rock file is not.

That's to be expected. lx upload only uploads the rockspec.

However, if I use lx add name, it fails

I'm going to need more context:

• Are you using the latest version of Lux? (The error message you pasted makes me think you might not be).
• Does it work with lx install? lx add is for adding packages as dependencies to a project.
• Do you have a project I can reproduce this with?

[rodamaral]

Are you using the latest version of Lux?

Yes.

❯ lx --version
lux-cli 0.22.2

Do you have a project I can reproduce this with?

https://github.com/rodamaral/dummy_lux_lib
https://luarocks.org/modules/rodamaral/dummy_lux_lib

Then, in another terminal:

❯ lx new dummy_lux_app
❯ cd dummy_lux_app
❯ lx debug project
Project name: dummy_lux_app
Project version: 0.1.0-1
Project location: /home/rodamaral/projects/dummy_lux_app

❯ lx add dummy_lux_lib
⠐ 📥 Downloading updated manifest from https://luarocks.org/manifest-5.4.zip                                                                                                Error: syncing dependencies with the project lockfile failed.

Caused by:
    failed to build dummy_lux_lib: builtin build failed: No such file or directory (os error 2)

Location:
    /home/runner/work/lux/lux/lux-cli/src/utils/project.rs:58:10

❯ lx install dummy_lux_lib
Error: failed to build dummy_lux_lib: builtin build failed: No such file or directory (os error 2)

Location:
    /home/runner/work/lux/lux/lux-cli/src/install.rs:36:5

---

But if I install with luarocks, I have:

❯ luarocks install dummy_lux_lib --tree luarocks
Installing https://luarocks.org/dummy_lux_lib-0.1.0-1.rockspec

dummy_lux_lib 0.1.0-1 depends on lua >= 5.1 (5.4-1 provided by VM: success)
No existing manifest. Attempting to rebuild...
dummy_lux_lib 0.1.0-1 is now installed in /home/rodamaral/projects/dummy_lux_app/luarocks

❯ tree luarocks
luarocks
├── lib
│   └── luarocks
│       └── rocks-5.4
│           ├── dummy_lux_lib
│           │   └── 0.1.0-1
│           │       ├── dummy_lux_lib-0.1.0-1.rockspec
│           │       └── rock_manifest
│           └── manifest
└── share
    └── lua
        └── 5.4
            └── dummy_lux_lib.lua

[mrcjkb]

The issue is that the source archive for your release tag packs everything into a dummy_lux_lib-0.1.0-1 subdirectory.
Because the archive file name is just "v0.1.0.zip", Lux doesn't auto-detect the subdirectory.

If your source archive has a subdirectory, you should specify

[source]
dir = "dummy_lux_lib-0.1.0-1"

in your lux.toml.

The reason it works with LuaRocks is that LuaRocks is more lenient than Lux when
trying to auto-detect source.dir if it's missing from the rockspec.

I've just opened a PR that should improve Lux's logic for source.dir auto-detection:

• feat: improved logic for source.dir auto-detection #1262

This will make it work with your rockspec.
But in general, you should still specify the source.dir, as not doing so is off-spec/undefined.

[rodamaral]

Thanks, that solves it for me. Awesome work.