chore: migrate away from lerna

[QuinnLee]

lerna/lerna#2703 :(

We should get an alternative

[luizstacio]

I think would be possible to move to a simpler solution using yarn|npm workspaces?

[biantris]

Here are some of the most used tools for monorepo, I think turborepo is a good way https://monorepo.tools/#monorepo-tools
https://github.com/vercel/turborepo

[pedronauck]

I have been using Turborepo and PNPM for a few months and the experience with them is awesome, mainly because of the cache system that both have that speeds up package installations and build so much faster than others.

[pedronauck]

Hey guys, I started to play with this issue today trying to resolve some of these tasks:

• Add Turborepo as monorepo manager
• Change to PNPM instead of NPM
• Use imports directly without the need to build --watch packages internally
• Use tsup for build using esm | cjs | iife formats
• Change Github actions to use PNPM
• Tests Github Actions
• Use Auto or Rush for publishing instead of Lerna

👉🏻 And after some changes I struggle with other issues (that's already solved too):

• Create an index.ts entry point for wordlists and merkle-shared packages in order to follow monorepo "pattern"
• Use set-project-references for fix typescript references (the old package is not compatible with PNPM)
• Exclude some files on tsconfig.base.json

👌🏻 Until now things are doing very well, all tests are passing...

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Now we have some new benefits because of the new toolchain:

✅ A very good cache system on the build pipeline (thanks to Turborepo)
✅ So much faster package installations (thanks to PNPM)
✅ Consume packages internally without watch builds
✅ Better package.json definitions with specific builds for CommonJS and ESM modules (thanks to tsup)

---

🙄 The only thing I'm lit stuck is build command on example-project. I don't know why, but it's with an error when trying to find the typechain-target-fuels, I'll try tomorrow to find why, but some help is very welcome.

> fuels-ts@0.0.1 build:example /Users/pedronauck/Projects/fuel/fuels-ts
> pnpm --filter '@fuel-ts/example-contract' build


> @fuel-ts/example-contract@0.6.0 build /Users/pedronauck/Projects/fuel/fuels-ts/packages/example-contract
> exec ./scripts/build.sh

Error occured:  Couldn't find fuels. Tried loading: @typechain/fuels, typechain-target-fuels, /Users/pedronauck/Projects/fuel/fuels-ts/packages/example-contract/fuels.
Perhaps you forgot to install @typechain/fuels?
Run with --show-stack-traces to see the full stacktrace
/Users/pedronauck/Projects/fuel/fuels-ts/packages/example-contract:
 ERR_PNPM_RECURSIVE_RUN_FIRST_FAIL  @fuel-ts/example-contract@0.6.0 build: `exec ./scripts/build.sh`
Exit status 1
 ELIFECYCLE  Command failed with exit code 1.

---

Another thing is that now I have a big PR and maybe this can be an issue too. I'll try to split this into smaller ones!

[adlerjohn]

I'll try to split this into smaller ones!

Please do ❤️! Big PRs are impossible to review properly.