This patch updates the script and Dockerfile to prevent issues when using go
modules.
The first change is to use a plain `git clone` instead of `go get -d` to download
the source. While (like "pre go-modules") `go get -d` won't *build* the binaries
when go modules are used, it *will* use go modules to download the package
(and dependencies); as a result:
- no git repository will be cloned in gopath
- go modules will be downloaded for "master" (not the version that we specify
to build)
Note: Once we update to Go 1.16, this script could be updated to use `go install <repo>@version`
The second change is an update to the `update-generated-files` script to detect
the correct version of google/protobuf to use from the `go.mod`'s `replace` rule,
to make sure we generate (and verify) using the correct version.
The Dockerfile was also updated to update the default versions specified in the
PROTOBUF_VERSION and GOGO_VERSION build-args (although not strictly necessary).
Regenerating the files with this version resulted in a minor formatting change.
Signed-off-by: Sebastiaan van Stijn <github@gone.nl>
Sebastiaan van Stijn