Fix crash on first launch (#78, #90) - #93

I suppose this will cause error too when getPath('appData') is also not existed?

I am newer in nodejs, I think a ensureDir method needed after I do some research.

const { spawnSync } = require('child_process')

const ensureDir = dir => {
  spawnSync('mkdir', ['-p', dir])
}
// or
const fse = require('node-fs-extra')
const ensureDir = dir => {
  fse.ensureDirSync(dir)
}

What's your opinion?

I suppose this will cause error too when getPath('appData') is also not existed?

Weird... Seems to be a electron fail. Elsewise fs.mkdirSync(...) will create all directories.

What's your opinion?

No this won't work on Windows and fs.mkdirSync(...) uses mkdir on Unix.

Ok

Weird... Seems to be a electron fail.

This means that if you delete your appData directory electron will throw an exception. Which is weird. Maybe we should check this or use a fallback directory, but actually the directory should always exist.

node does not create all directories, so we have to use your suggestion.

const fse = require('node-fs-extra')
const ensureDir = dir => {
  fse.ensureDirSync(dir)
}

I also prefer the second method, 👍 go ahead!

use log method to write error log to log file

I think following code is the best case, otherwise Mark Text will crash because of no existing directory.

log(e)
throw e

ok