Feature request: task manager

[similonap]

Bug report

Packages affected

• [ ] sandpack-client
• [*] sandpack-react

Description of the problem

"scripts": {
    "start": "tsc -p . && node index.js"
  },

works in normal codesandbox but not in sandpack.

[danilowoz]

In your opinion, @DeMoorJasper, what sandpack must do for these cases?

• Spawn two processes synchronously using the same shell instance;
• Create a queue for processes and create multiples shell instances;

It sounds like a big challenge since we need to wait for one process to be finished and spawn another one, so I'm not absolutely sure what's the correct way to go here.

[DeMoorJasper]

Ideally we would have a command parser that takes into account env variables and these operators. We could create a very basic ast type structure from a command and some CommandRunners.

In this case it would be run tsc -p . wait for process to exit and than run node index.js using the same shell instance. This is a fairly simple one, there's a couple more complex ones like the pipe operator |

[danilowoz]

I spent some time working on a command parser: https://codesandbox.io/s/command-shell-parser-4pknfv?file=/src/index.ts

What do you think @DeMoorJasper?

[DeMoorJasper]

@danilowoz Looks very good, just fixed something where or is actually pipe and added the symbol for or