How to install latest node-canvas from custom mirror

[ryanboswell]

I'm working on a project that uses node-canvas at work, but our build system is closed off from the open internet, so we're required to mirror binaries like node-canvas internally. Lots of other packages support providing an environment variable to point to an alternative mirror host or path and I'm hoping that node-canvas does too, or can.

I found another issue from a few years ago, that seems mostly targeted to the now deprecated node-canvas-prebuilt version. The tldr; being that an env variable named canvas_binary_host_mirror should have the mirror path in it and allow downloading from there, but from my testing that isn't recognized at all.

None of the installation instructions I can find shed any light on whether this is still supported in some form, so I was hoping it is and is just not documented yet. Or there's a process that can get support for this added.

Your Environment

• Version of node-canvas (output of npm list canvas or yarn list canvas): 2.7.0
• Environment (e.g. node 4.2.0 on Mac OS X 10.8): Node 14.16.0 on Ubuntu

[LinusU]

This might be able to help you:

https://github.com/mapbox/node-pre-gyp#download-binary-files-from-a-mirror

If you manage to get it working I would appreciate a PR that adds a note about how to do it to the readme ☺️

p.s. sorry for the short answer, I don't have time to test this myself at the moment

[ryanboswell]

Looks like those steps do work, I'll find some time a little later to submit a tweak to the docs to make that easier to find.

[th0car]

Could this in any way also be applicable to access the current releases in https://github.com/Automattic/node-canvas/releases from a mirror or local artifactory?