Support for Go external dependencies

[istiak101]

Is it possible to add support for Go dependencies?

https://rpm-software-management.github.io/mock/Feature-external-deps

[  1%] Built target global_target
make[2]: *** Deleting file 'crypto_test_data.cc'
go: golang.org/x/[email protected]: Get "https://proxy.golang.org/golang.org/x/crypto/@v/v0.0.0-20210513164829-c07d793c2f9a.mod": dial tcp: lookup proxy.golang.org on [::1]:53: read udp [::1]:44672->[::1]:53: read: connection refused
go: golang.org/x/[email protected]: Get "https://proxy.golang.org/golang.org/x/crypto/@v/v0.0.0-20210513164829-c07d793c2f9a.mod": dial tcp: lookup proxy.golang.org on [::1]:53: read udp [::1]:44672->[::1]:53: read: connection refused
make[2]: *** [CMakeFiles/crypto_test_data.dir/build.make:251: crypto_test_data.cc] Error 1
[  1%] Generating crypto_test_data.cc

I am trying to build BoringSSL and without --enable-network the build will fail. I don't want to enable network for any build.

[xsuchy]

Yes, it is possible. However, neither of us is fluent in go. Therefore I need an expert who will tell us what is the best way to install go dependencies? On Fedora and RHEL. And help to test the pull request.

[xsuchy]

Hmm, this seems to be right way https://developer.fedoraproject.org/tech/languages/go/go-packages.html

[alexsaezm]

Hmm, this seems to be right way https://developer.fedoraproject.org/tech/languages/go/go-packages.html

I made a pull request to the repository to make that documentation up-to-date.

https://github.com/developer-portal/content/pull/440

[k0ste]

Also spent a day for a debug why go build fails "in docker in mock in chroot". I was thinking it was a some hardcoded ipv6 problems, cause ::1 in log

docker golang proxy.golang.org on [::1]:53: dial udp [::1]:53: connect: cannot assign requested address

Then changed GOPROXY env, to direct and find out the network in mock chroot is missing 🙂

+ umask 022
+ cd /builddir/build/BUILD
+ cd smartctl_exporter-0.9.1
+ export GOPROXY=direct
+ GOPROXY=direct
+ export GOPATH=/builddir/build/BUILD/gopath
+ GOPATH=/builddir/build/BUILD/gopath
+ export GOBIN=/builddir/build/BUILD/gopath/bin
+ GOBIN=/builddir/build/BUILD/gopath/bin
+ cd /builddir/build/BUILD/gopath/src/github.com/prometheus-community/smartctl_exporter
+ GOOS=linux
+ go build
go: downloading github.com/prometheus/client_golang v1.13.1
go: downloading github.com/go-kit/log v0.2.1
go: downloading github.com/prometheus/common v0.37.0
go: downloading github.com/prometheus/exporter-toolkit v0.8.1
go: downloading github.com/tidwall/gjson v1.14.3
go: downloading gopkg.in/alecthomas/kingpin.v2 v2.2.6
main.go:21:2: reading github.com/go-kit/log/go.mod at revision v0.2.1: git ls-remote -q origin in /builddir/build/BUILD/gopath/pkg/mod/cache/vcs/1d9f54c61284fbaef5d8f72908c527abe27fa06148d686c887c372c251cb48e0: exit status 128:
	fatal: unable to access 'https://github.com/go-kit/log/': Could not resolve host: github.com
main.go:22:2: reading github.com/go-kit/log/go.mod at revision v0.2.1: git ls-remote -q origin in /builddir/build/BUILD/gopath/pkg/mod/cache/vcs/1d9f54c61284fbaef5d8f72908c527abe27fa06148d686c887c372c251cb48e0: exit status 128:
	fatal: unable to access 'https://github.com/go-kit/log/': Could not resolve host: github.com
main.go:23:2: reading github.com/prometheus/client_golang/go.mod at revision v1.13.1: git ls-remote -q origin in /builddir/build/BUILD/gopath/pkg/mod/cache/vcs/6ffa6057942360db9e438bbc1bc03e3efd3ae1d41df4abeb5328ef376a815bfa: exit status 128:
	fatal: unable to access 'https://github.com/prometheus/client_golang/': Could not resolve host: github.com

Fortunately, suggestion from @istiak101 works for me: --enable-network option resolves the impossibility of building golang application