consul: update to 1.9.0

- switch to using the golang portgroup

net/consul/Portfile

@@ -1,9 +1,11 @@
 # -*- coding: utf-8; mode: tcl; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- vim:fenc=utf-8:ft=tcl:et:sw=4:ts=4:sts=4
 
 PortSystem          1.0
-PortGroup           github 1.0
+PortGroup           golang 1.0
+
+go.setup            github.com/hashicorp/consul 1.9.0 v
+revision            0
 
-github.setup        hashicorp consul 1.8.6 v
 homepage            https://www.consul.io
 
 platforms           darwin
@@ -14,7 +16,8 @@ installs_libs       no
 # Consul's build process requires the git repository.
 fetch.type          git
 
-maintainers         {gmail.com:herby.gillot @herbygillot} openmaintainer
+maintainers         {gmail.com:herby.gillot @herbygillot} \
+                    openmaintainer
 
 description         Consul is a distributed service mesh to connect, secure, \
                     and configure services across any runtime platform and \
@@ -31,26 +34,20 @@ long_description    Consul is a service mesh solution providing a full \
                     but also supports 3rd party proxy integrations such as \
                     Envoy.
 
-depends_build       port:go
-
-set proj_dir "${workpath}/src/github.com/${github.author}/${github.project}"
+# Do not restrict Go from downloading dependencies at build time.
+build.env-delete        GOPROXY=off GO111MODULE=off
 
 # The "dev" build target must be used to build just the binary for this
 # platform, instead of for ALL platforms
 # - https://www.consul.io/docs/install/index.html#compiling-from-source
+build.cmd           make
 build.target        dev
-build.args          ""
-build.dir           ${proj_dir}
-build.env           GOPATH=${workpath} PATH=$env(PATH):${workpath}/bin
-use_configure       no
-
-post-extract {
-    file mkdir [file dirname ${proj_dir}]
-    move ${worksrcpath} ${proj_dir}
-}
+
+installs_libs       no
+use_parallel_build  no
 
 destroot {
-    xinstall -m 755 ${workpath}/bin/${name} ${destroot}${prefix}/bin/${name}
+    xinstall -m 755 ${gopath}/bin/${name} ${destroot}${prefix}/bin/${name}
 }
 
 github.livecheck.regex {([0-9.]+)}