compat: postinstall fails for some modules during npm install

[kt3k]

When the npm module has postinstall script in package.json, then npm install with compat mode stops with errors.

Known npm modules which cause this error:

• es5-ext
• core-js-pure

[bartlomieju]

Right... postinstall script. We need to find some sane solution for that.

[kt3k]

es5-ext has node -e \"try{require('./_postinstall')}catch(e){}\" in postinstall
https://github.com/medikoo/es5-ext/blob/406507807f96aa092ee252ab5fe759fc0dd4b778/package.json#L115

and that command passed to child_process.spawn.

core-js-pure also has the same postinstall script https://github.com/zloirock/core-js/blob/6eb66ebbcd9c50a8f337c87992076b51a4beecec/packages/core-js-pure/package.json#L55

[kt3k]

dirty solution could be parsing the input at the beginning of child_process.spawn, and change the behavior if the input is node command with -e option...

[kt3k]

• _postinstall.js script in ex5-ext https://github.com/medikoo/es5-ext/blob/edf9fbac6c0d72a6192de7e0fbfb022eb34c3ac7/_postinstall.js
• postinstall.js script in core-js https://github.com/zloirock/core-js/blob/master/packages/core-js/postinstall.js

These scripts seem technically irrelevant to make them working (political messages and donation requests). Maybe ignoring these postinstall scripts by hard coding would be a possible option

[kt3k]

postinstall issue is tracked in denoland/deno#16164