How do I run a private pub server while still referencing packages from pub.dartlang.org?

Question

Assuming that I'm running my own instance of pub-dartlang for a private pub feed; how do I indicate in pubspec.yaml which packages come from the private feed vs pub.dartlang.org?

Answer 1

You can set the environment variable PUB_HOSTED_URL so it points to your custom pub repo server. This way pub loads all packages which don't have a server specified from this server.

You can define exceptions in pubspec.yaml like

dependencies:
  transmogrify:
    hosted:
      name: transmogrify
      url: http://some-package-server.com

see https://www.dartlang.org/tools/pub/dependencies.html for more details.

There is another package that seems to provide a custom Pub repo https://pub.dartlang.org/packages/pub_proxy_server