Arch/Linux installation note for puppeteer EACCES error

[jathanasiou]

Kernel: 4.18.16-arch1-1-ARCH
NPM version: 6.4.1
fb-messenger-cli version: 2.1.1 (npm latest)

As per the above, attempting to install globally in Arch/Antergos (even when using sudo) results in the following error when Puppeteer attempts to install itself.

> [email protected] install /usr/lib/node_modules/fb-messenger-cli/node_modules/puppeteer
> node install.js

ERROR: Failed to download Chromium r599821! Set "PUPPETEER_SKIP_CHROMIUM_DOWNLOAD" env variable to skip download.
{ [Error: EACCES: permission denied, mkdir '/usr/lib/node_modules/fb-messenger-cli/node_modules/puppeteer/.local-chromium']
  errno: -13,
  code: 'EACCES',
  syscall: 'mkdir',
  path:
   '/usr/lib/node_modules/fb-messenger-cli/node_modules/puppeteer/.local-chromium' }

This appears related to Puppeteer issue 375 for which the suggestion is to use the --unsafe-perm flag and appears allow for proper installation in these systems by letting the installer utilize sudo access.

The README should be updated to reflect that for Linux users.

[syntaxseed]

To clarify for others... this worked for me:

sudo npm install -g fb-messenger-cli --unsafe-perm=true

[o-lenczyk]

i agree that readme should be updated