I tried blowing away my entire ~/go tree to be sure. Starting from a fresh checkout (outside the ~/go tree), and a fresh checkout and go mod init ..., here's what the build does:
$ go build ./... go: downloading github.com/go-kit/kit v0.5.1-0.20170917202734-0d313fb5fb3a *go: downloading github.com/prometheus/common v0.0.0-20170908161822-2f17f4a9d485* go: downloading gopkg.in/alecthomas/kingpin.v2 v2.2.5 go: finding github.com/prometheus/client_golang v1.2.1 go: downloading github.com/prometheus/client_golang v1.2.1 go: finding github.com/aperum/nrpe latest *go: extracting github.com/prometheus/common v0.0.0-20170908161822-2f17f4a9d485* go: downloading github.com/pkg/errors v0.8.1-0.20170910134614-2b3a18b5f0fb go: extracting gopkg.in/alecthomas/kingpin.v2 v2.2.5 go: downloading github.com/alecthomas/units v0.0.0-20151022065526-2efee857e7cf go: downloading github.com/alecthomas/template v0.0.0-20160405071501-a0175ee3bccc go: downloading github.com/aperum/nrpe v0.0.0-20170524093721-53d9ca02dfca go: extracting github.com/alecthomas/units v0.0.0-20151022065526-2efee857e7cf go: extracting github.com/pkg/errors v0.8.1-0.20170910134614-2b3a18b5f0fb go: extracting github.com/alecthomas/template v0.0.0-20160405071501-a0175ee3bccc go: extracting github.com/prometheus/client_golang v1.2.1 go: extracting github.com/go-kit/kit v0.5.1-0.20170917202734-0d313fb5fb3a go: extracting github.com/aperum/nrpe v0.0.0-20170524093721-53d9ca02dfca go: downloading github.com/go-stack/stack v1.6.0 go: downloading github.com/go-logfmt/logfmt v0.3.0 go: extracting github.com/go-logfmt/logfmt v0.3.0 go: extracting github.com/go-stack/stack v1.6.0 go: downloading gopkg.in/alecthomas/kingpin.v2 v2.2.6 go: downloading github.com/go-kit/kit v0.9.0 go: downloading github.com/prometheus/procfs v0.0.5 go: downloading github.com/golang/protobuf v1.3.2 go: downloading github.com/cespare/xxhash/v2 v2.1.0 *go: downloading github.com/prometheus/common v0.7.0* go: downloading github.com/prometheus/client_model v0.0.0-20190812154241-14fe0d1b01d4 go: extracting gopkg.in/alecthomas/kingpin.v2 v2.2.6 go: extracting github.com/prometheus/procfs v0.0.5 go: extracting github.com/cespare/xxhash/v2 v2.1.0 go: extracting github.com/go-kit/kit v0.9.0 go: extracting github.com/prometheus/client_model v0.0.0-20190812154241-14fe0d1b01d4 go: downloading github.com/alecthomas/units v0.0.0-20190717042225-c3de453c63f4 go: downloading github.com/alecthomas/template v0.0.0-20190718012654-fb15b899a751 *go: extracting github.com/prometheus/common v0.7.0* go: downloading github.com/beorn7/perks v1.0.1 go: extracting github.com/golang/protobuf v1.3.2 go: downloading github.com/pkg/errors v0.8.1 go: downloading github.com/matttproud/golang_protobuf_extensions v1.0.1 go: downloading github.com/go-logfmt/logfmt v0.4.0 go: extracting github.com/alecthomas/units v0.0.0-20190717042225-c3de453c63f4 go: extracting github.com/go-logfmt/logfmt v0.4.0 go: extracting github.com/matttproud/golang_protobuf_extensions v1.0.1 go: extracting github.com/pkg/errors v0.8.1 go: extracting github.com/alecthomas/template v0.0.0-20190718012654-fb15b899a751 go: extracting github.com/beorn7/perks v1.0.1 go: finding github.com/go-kit/kit v0.9.0 *go: finding github.com/prometheus/common v0.7.0* go: finding gopkg.in/alecthomas/kingpin.v2 v2.2.6 go: finding github.com/go-logfmt/logfmt v0.4.0 go: finding github.com/pkg/errors v0.8.1 go: finding github.com/prometheus/client_model v0.0.0-20190812154241-14fe0d1b01d4 go: finding github.com/beorn7/perks v1.0.1 go: finding github.com/cespare/xxhash/v2 v2.1.0 go: finding github.com/golang/protobuf v1.3.2 go: finding github.com/alecthomas/template v0.0.0-20190718012654-fb15b899a751 go: finding github.com/alecthomas/units v0.0.0-20190717042225-c3de453c63f4 go: finding github.com/matttproud/golang_protobuf_extensions v1.0.1 go: finding github.com/prometheus/procfs v0.0.5 # github.com/RobustPerception/nrpe_exporter ./nrpe_exporter.go:124:37: cannot use &allowedLevel (type *promlog.AllowedLevel) as type *promlog.Config in argument to flag.AddFlags ./nrpe_exporter.go:128:23: cannot use allowedLevel (type promlog.AllowedLevel) as type *promlog.Config in argument to promlog.New So it seems to be downloading both the old versions of packages as they were in the initial go.mod, *and* the newer ones. Here is how go.mod changes: --- go.mod.orig 2019-11-27 22:43:06.884601059 +0000 +++ go.mod 2019-11-27 22:43:20.733075672 +0000 @@ -3,13 +3,15 @@ go 1.13 require ( - github.com/alecthomas/template v0.0.0-20160405071501-a0175ee3bccc - github.com/alecthomas/units v0.0.0-20151022065526-2efee857e7cf - github.com/go-kit/kit v0.5.1-0.20170917202734-0d313fb5fb3a - github.com/go-logfmt/logfmt v0.3.0 - github.com/go-stack/stack v1.6.0 + github.com/alecthomas/template v0.0.0-20190718012654-fb15b899a751 + github.com/alecthomas/units v0.0.0-20190717042225-c3de453c63f4 + github.com/aperum/nrpe v0.0.0-20170524093721-53d9ca02dfca + github.com/go-kit/kit v0.9.0 + github.com/go-logfmt/logfmt v0.4.0 + github.com/go-stack/stack v1.8.0 github.com/kr/logfmt v0.0.0-20140226030751-b84e30acd515 - github.com/pkg/errors v0.8.1-0.20170910134614-2b3a18b5f0fb - github.com/prometheus/common v0.0.0-20170908161822-2f17f4a9d485 - gopkg.in/alecthomas/kingpin.v2 v2.2.5 + github.com/pkg/errors v0.8.1 + github.com/prometheus/client_golang v1.2.1 + github.com/prometheus/common v0.7.0 + gopkg.in/alecthomas/kingpin.v2 v2.2.6 ) Almost every package gets a new version. "go mod tidy" changes it again, but still brings everything up to latest: --- go.mod.orig 2019-11-27 22:43:06.884601059 +0000 +++ go.mod 2019-11-27 22:49:49.218179240 +0000 @@ -3,13 +3,10 @@ go 1.13 require ( - github.com/alecthomas/template v0.0.0-20160405071501-a0175ee3bccc - github.com/alecthomas/units v0.0.0-20151022065526-2efee857e7cf - github.com/go-kit/kit v0.5.1-0.20170917202734-0d313fb5fb3a - github.com/go-logfmt/logfmt v0.3.0 - github.com/go-stack/stack v1.6.0 - github.com/kr/logfmt v0.0.0-20140226030751-b84e30acd515 - github.com/pkg/errors v0.8.1-0.20170910134614-2b3a18b5f0fb - github.com/prometheus/common v0.0.0-20170908161822-2f17f4a9d485 - gopkg.in/alecthomas/kingpin.v2 v2.2.5 + github.com/aperum/nrpe v0.0.0-20170524093721-53d9ca02dfca + github.com/go-kit/kit v0.9.0 + github.com/prometheus/client_golang v1.2.1 + github.com/prometheus/common v0.7.0 + github.com/stretchr/testify v1.4.0 // indirect + gopkg.in/alecthomas/kingpin.v2 v2.2.6 ) I've re-read the blog posting here <https://blog.golang.org/migrating-to-go-modules> on changing to modules. It says: *go mod init creates a new go.mod file and automatically imports dependencies from Godeps.json, Gopkg.lock, or a number of other supported formats <https://go.googlesource.com/go/+/362625209b6cd2bc059b6b0a67712ddebab312d9/src/cmd/go/internal/modconv/modconv.go#9>.* *...* *This is a good time to pause and run go build ./... and go test ./... before continuing. Later steps may modify your go.mod file* But what I'm finding is that the "go build ./..." step itself is modifying go.mod, and that's what's confusing me. A separate wiki page <https://github.com/golang/go/wiki/Modules#version-selection> talks about "minimal version selection" algorithm. Starting with the initial go.mod, "go list -m all" doesn't mention the newer versions: $ go list -m all go: finding github.com/alecthomas/template v0.0.0-20160405071501-a0175ee3bccc go: finding github.com/alecthomas/units v0.0.0-20151022065526-2efee857e7cf go: finding github.com/go-kit/kit v0.5.1-0.20170917202734-0d313fb5fb3a go: finding github.com/go-logfmt/logfmt v0.3.0 go: finding github.com/go-stack/stack v1.6.0 go: finding github.com/kr/logfmt v0.0.0-20140226030751-b84e30acd515 go: finding github.com/pkg/errors v0.8.1-0.20170910134614-2b3a18b5f0fb *go: finding github.com/prometheus/common v0.0.0-20170908161822-2f17f4a9d485* go: finding gopkg.in/alecthomas/kingpin.v2 v2.2.5 github.com/RobustPerception/nrpe_exporter github.com/alecthomas/template v0.0.0-20160405071501-a0175ee3bccc github.com/alecthomas/units v0.0.0-20151022065526-2efee857e7cf github.com/go-kit/kit v0.5.1-0.20170917202734-0d313fb5fb3a github.com/go-logfmt/logfmt v0.3.0 github.com/go-stack/stack v1.6.0 github.com/kr/logfmt v0.0.0-20140226030751-b84e30acd515 github.com/pkg/errors v0.8.1-0.20170910134614-2b3a18b5f0fb *github.com/prometheus/common v0.0.0-20170908161822-2f17f4a9d485* gopkg.in/alecthomas/kingpin.v2 v2.2.5 Therefore, if there is some nested dependency which is forcing newer versions of packages to be picked up, I can't work out what it is. Thanks for any clues! -- You received this message because you are subscribed to the Google Groups "golang-nuts" group. To unsubscribe from this group and stop receiving emails from it, send an email to golang-nuts+unsubscr...@googlegroups.com. To view this discussion on the web visit https://groups.google.com/d/msgid/golang-nuts/185cb200-8d1f-46b2-a942-f317fefa787e%40googlegroups.com.
