Strapi exits on fs.writeFile()

[RyanPrentiss]

Describe the bug
When writing new files to the system via fs.writeFile(), Strapi exits returning the following error:

\node_modules\strapi\lib\commands\develop.js:87
            strapiInstance.server.destroy(() => {
                                  ^

TypeError: strapiInstance.server.destroy is not a function

Steps to reproduce the behavior

1. Create Custom Plugin strapi generate:plugin my-plugin
2. Via {my-plugin}/config/function/bootstrap.js

fs.writeFile(`${__dirname}/../../models/testfile.txt`, "Test File Here.", (e) => e);

3. yarn develop

Expected behavior
File should be written to system without Strapi exiting.

System

• Node.js version: v12.16.3
• NPM version: 6.14.7
• Strapi version: 3.1.3
• Database: PostgreSQL 12.3
• Operating system: Windows 10 Home 1909

[derrickmehaffy]

For this let me ping @petersg83 or @alexandrebodin as I'm not sure of the best case here, I believe in this case you are trying to edit another models lifecycles file correct?

[RyanPrentiss]

For this let me ping @petersg83 or @alexandrebodin as I'm not sure of the best case here, I believe in this case you are trying to edit another models lifecycles file correct?

That is correct. I'm am attempting to dynamically create a model-js file which includes a lifecycle event for a plugin.

[RyanPrentiss]

The same error occurs when executing exec('echo > test.txt'); however, exec('strapi generate:model ...') works perfectly within the bootstrap.js.

I've submitted a request for an update to allow strapi generate:model to accept an object via a --lifecycles flag.

[RyanPrentiss]

I've since narrowed down the issue. Whether using echo or fs.write..., the error only seems to occur via bootstrap.js. I have not yet encountered any errors when writing files to the system following bootstrap.

[alexandrebodin]

the bug is coming because the server instance is not completely instantiated before the boostrap function runs. because you write files during the bootstrap, the watcher tries to reload and kill the server that is not created yet.