feat: added support for packages [WIP]

[folke]

Lazy now automatically resolves specs from:

• a plugin's lazy.lua file
• a plugin's rockspec
• a plugin's packspec (experimental, since the format is not quite there yet)

This PR also includes a big rewrite of how a final spec is resolved based on a plugin's spec fragments.
Should be a tiny bit faster, but more importantly, fixes some issues and is easier to maintain.

New docs website at https://lazy.folke.io/

Closes

• feature: Allow plugins to configure their own laziness #338
• feature: Lua Rocks Support #253
• Luarocks support #37
• bug: adding 3 or more specs for the same plugin resets dir even though dev = true #1328
• build.lua has no access to plugin dir #1368

Supersedes

• Initial packspec support #910
• feat: luarocks support #1528

Example

neorg's rockspec is automatically used to install deps

{
    "nvim-neorg/neorg",
    build = false, -- disable the build script that currently uses luarocks.nvim
    opts = {},
  }

[max397574]

really excited about this since it will definitely allow simplifying dependency management a lot

[max397574]

trying this out rn
atm I think it's just used for neorg and neocomplete (a personal project of mine)
on startup lazy always tries to install things, flickers around for a bit and then shows an Too many rounds of missing plugins error
anything I can do to debug this?

[folke]

That's probably because you have a custom build step for those plugins.
This means the luarocks build won't run and will keep trying to build again.
Can you confirm this is what happens?

[max397574]

set build to false explicitly

[folke]

You should remove that build = false. I've also just updated lazy to no longer trigger those new rounds

[max397574]

seems to work now
just one last thing which is related to this
would be really nice if rocks would show up in :Lazy overview
should I open a separate feature request for this?

[folke]

Only plugins or things that are defined in your specs show up in :Lazy right now.
A plugin that has a rockspec, has a separate rockspec tree with its dependencies.
I'll see if I can add rocks to the details of a plugin

[mrcjkb]

There's a luarocks --tree <tree> list --porcelain command that might be useful for that.

[folke]

Added:

[vhyrro]

Tysm for all the work done here! This will make things endlessly more convenient for Neorg now :)