Idea: reducing size of node_modules with postinstall script

[vanodevium]

Looks like we can reduce the size of node_modules by ~40 percent

All we need is to delete necessary folders:

• node_modules/rxjs/src
• node_modules/rxjs/bundles
• node_modules/rxjs/_esm5
• node_modules/rxjs/_esm2015

---

Without postinstall script we have

❯ npm install --only=prod --quite

added 105 packages, and audited 106 packages in 2s

17 packages are looking for funding
  run `npm fund` for details

found 0 vulnerabilities

❯ du -sh node_modules
23M     node_modules

Pay attention to 23M. This is size of node_modules.

With simple postinstall command, we have

❯ npm install --only=prod --quite

> lint-staged@0.0.0-development postinstall
> rimraf node_modules/rxjs/src node_modules/rxjs/bundles node_modules/rxjs/_esm5 node_modules/rxjs/_esm2015


added 105 packages, and audited 106 packages in 2s

17 packages are looking for funding
  run `npm fund` for details

found 0 vulnerabilities

❯ du -sh node_modules
14M     node_modules

Pay attention to 14M. This is size of node_modules.

cc @ai

[ai]

It can be dangerous to change other package. It can be re-used by somebody else.

[vanodevium]

Yeap, but these folders are really useless for node environment.
Also, local tests are passed with no errors.

In my opinion, there are no other ways to reduce node_modules of lint-staged

[okonet]

May I ask first why is this such a big issue? 23 MB vs 14 MB doesn't look like a big deal to me in the first place. What problem are you trying to solve here?

[vanodevium]

I only try to reduce size of node_modules with small steps. Step by step.
According to the described situation

[okonet]

Maybe @ai can explain what’s the goal here and why this is important?

[ai]

The problem is that lint-staged has big installation size

https://packagephobia.com/result?p=lint-staged

But applying patch to subdependencies looks like too dangerous way. It is better to replace them to smallest analogs.

[vanodevium]

@ai
As I understand it, listr2 is one of the most heavy requirement because it has a very heavy rxjs.
Does it make sense to try to fix this dependency in an honest way (without postinstall patching)?

[ai]

Yeap. listr subdependencies. The author is very open.

[iiroj]

This PR #1003 has some improvements regarding this, since Listr2 is updated to latest version, the direct depency to chalk is replaced with colorette and supports-color, and finally log-symbols is removed because Listr2 now exports its own figures.

[iiroj]

I think this PR shouldn't be merged because it seems very dangerous to remove local node_modules. Let's try to cut down on dependency size by actually updating/replacing them rather than things like this!

Closing the PR.