[MacPorts] #61192: Lots of golang ports are downloading dependencies at build time

[MacPorts]

#61192: Lots of golang ports are downloading dependencies at build time
-------------------------------------------------+-------------------------
  Reporter:  amake                               |      Owner:  (none)
      Type:  defect                              |     Status:  new
  Priority:  Normal                              |  Milestone:
 Component:  ports                               |    Version:
Resolution:                                      |   Keywords:
      Port:  annie aws-vault certigo chezmoi     |
  cloudmonkey copilot croc elvish evans fzf      |
  gitqlite glow go-migrate golangci-lint gore    |
  gotop grpcurl hugo ipfs istioctl jenkins-cli   |
  k9s krew kubergrunt kustomize micro mole       |
  newreleases pulumi rclone scw staticcheck      |
  syncthing tektoncd-cli terragrunt trivy uni    |
  up webify wtfutil yq                           |
-------------------------------------------------+-------------------------

Comment (by herbygillot):

 I feel like instead of having `go2port` reinvent the wheel, we should
 download deps _exactly_ as Go would... and so perhaps the `go mod
 download` command could be of some use here.  The only downside is that Go
 seems to prefer using .zip files, which won't match MacPort's preferred
 .tar.gz suffix used in most places.

 Within a Go project's source tree, `go mod download -json` will print the
 manifest that Go would use to download the project's dependencies if that
 project is using Go modules.  This can lead to a much more robust way for
 MacPorts to vendor the Go deps.

 Sample output:
 {{{
 {
         "Path": "cloud.google.com/go",
         "Version": "v0.26.0",
         "Info":
 "/Users/herby/go/pkg/mod/cache/download/cloud.google.com/go/@v/v0.26.0.info",
         "GoMod":
 "/Users/herby/go/pkg/mod/cache/download/cloud.google.com/go/@v/v0.26.0.mod",
         "Zip":
 "/Users/herby/go/pkg/mod/cache/download/cloud.google.com/go/@v/v0.26.0.zip",
         "Dir": "/Users/herby/go/pkg/mod/cloud.google.com/go at v0.26.0",
         "Sum": "h1:e0WKqKTd5BnrG8aKH3J3h+QvEIQtSUcf2n5UZ5ZgLtQ=",
         "GoModSum": "h1:aQUYkXzVsufM+DwF1aE+0xfcU+56JwCaLick0ClmMTw="
 }
 {
         "Path": "github.com/BurntSushi/toml",
         "Version": "v0.3.1",
         "Info":
 "/Users/herby/go/pkg/mod/cache/download/github.com/!burnt!sushi/toml/@v/v0.3.1.info",
         "GoMod":
 "/Users/herby/go/pkg/mod/cache/download/github.com/!burnt!sushi/toml/@v/v0.3.1.mod",
         "Zip":
 "/Users/herby/go/pkg/mod/cache/download/github.com/!burnt!sushi/toml/@v/v0.3.1.zip",
         "Dir":
 "/Users/herby/go/pkg/mod/github.com/!burnt!sushi/toml at v0.3.1",
         "Sum": "h1:WXkYYl6Yr3qBf1K79EBnL4mak0OimBfB0XUf9Vl28OQ=",
         "GoModSum": "h1:xHWCNGjB5oqiDr8zfno3MHue2Ht5sIBksp03qcyfWMU="
 }
 ...
 }}}

-- 
Ticket URL: <https://trac.macports.org/ticket/61192#comment:7>
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