Referring to the repository url in package.json in a script - npm

Question

As usual in my package.json file I have my repository url defined:
{
"repository": {
"type": "git",
"url": "http://my.git.repo"
}
}
I am trying to define a script that will push to my repo and push tags. Usually something like this would do the trick:
{
"scripts": {
"push": "git push origin && git push origin --tags"
}
}
but we work with pull requests and for us origin is our private fork. public is usually the public repo but this can't be relied upon. I want my push script to always push to the public repo:
{
"scripts": {
"push": "git push http://my.git.repo && git push http://my.git.repo --tags"
}
}
but this involves duplicating the repo url and when people copy this seed project they will forget to update the url in all 3 places. I want to refer to the url of the repo that is already specified in the package.json
I have tried something along the lines of this:
{
"scripts": {
"push": "git push $npm_package_repository_url && git push $npm_package_repository_url --tags"
}
}
based on this webpage: https://docs.npmjs.com/misc/scripts#packagejson-vars but it doesn't work.
Many thanks

Answer 1

The syntax $npm_package_repository_url will work fine on Mac OS X/Linux (bash), however %npm_package_repository_url% is required for Windows. You could try utilizing cross-var to enable one script syntax (i.e. $npm_package_repository_url) to work cross-platform.
Thanks to RobC for this