This is a necessarily large PR to offer almost complete Go modules
support for GopherJS.
We now use github.com/rogpeppe/go-internal to be able to write testscript
tests
A suite of testscript tests have been added to cover the major GopherJS
commands operating in both GOPATH mode and module mode. Includes a test to
ensure that the bug raised in #27 is now properly fixed.
The GopherJS tool and build packages have been heavily refactored in places to
support Go modules. GopherJS support for Go modules follows the same patterns
as the go tool.
We fix the build cache to be a function of the augmented packages as opposed
(incorrectly) to the unaugmented package files. This has a slight cost because
of the way the augmentation code is currently written (this could be refactored
in a later PR) because every file is unconditionally parsed. Main and test
packages are not cached (again, we could change this in a later PR). Because it
would just work.
We fix the tests/run.go wrapper around the fixedbugs tests in the Go
distribution to not perform a chdir into GOROOT; this does not work with
modules.
We tidy up .circleci/config.yml to split commands into their separate run
sections where it makes sense to.
We add genmodstubbs.go to automatically populate the stubs we need in
testdata/mod for the loading of github.com/gopherjs/gopherjs/{js,nosync}.
This is a necessarily large PR to offer almost complete Go modules support for GopherJS.
Fixes #24 Fixes #27