How to tell node-gyp / node-sass that I already have my node-headers?

Question

I'm currently working behind a proxy that doesn't allow me the HTTP GET request stage of this command:

node node-sass/scripts/build.js

Request stage:

gyp http GET https://nodejs.org/download/release/v10.8.0/node-v10.8.0-headers.tar.gz
gyp WARN install got an error, rolling back install

As said, I downloaded those headers (and particularly the mentioned-in-the-log tarball) locally. How do I tell node-sass that I do have my file locally? I tried looking in build.js directly, but I couldn't manage to do what I want ; that might be out of my level.

Answer 1

OK so I managed to do it. I simply had to unpack the tarball, and make point a nodedir config in my .yarnrc to the folder created by unpacking. So:

tar -xzvf your_headers_package
yarn config set nodedir your_headers_folder

And that worked for me. I feel... pretty dumb now.

Answer 2

For those trying to set up node-gyp with no internet access:

• Get the node headers file: curl -O https://nodejs.org/dist/v14.17.3/node-v14.17.3-headers.tar.gz (make sure you have the correct node version appropriate, and you need a machine with internet)
• Copy header tarball to offline machine (approach may vary depending on your situation an example may be to winscp to vm)
• Create the node-gyp folder that the library looks for if it's not already existing: mkdir -p ~/.cache/node-gyp/14.17.3 (PITFALL: in some versions node-gyp folder is under ~/.node-gyp)
• tar the file to node-gyp folder: tar -xf node-v14.17.3-headers.tar.gz --directory ~/.cache/.node-gyp/6.10.1/ --strip-components 1 (make sure you have the correct versions here)
• create the installVersion manually: echo 9 >~/.node-gyp/6.10.1/installVersion (usually it is created automatically if you have internet access)