Portfile

# $Id: $

PortSystem      1.0
PortGroup       github 1.0

github.setup    peco peco 0.1.6 {v}
description     Simplistic interactive filtering tool
long_description \
        peco can be a great tool to filter stuff like logs, process stats, find \
        files, because unlike grep, you can type as you think and look through  \
        the current results.
license         MIT

categories      sysutils
maintainers     kimuraw openmaintainer
platforms       darwin

depends_build   port:go
use_configure   no

checksums       md5 941106bc99b5156a9edc9ec2dd9ddfd9 \
                rmd160 09420ba3818d82b5cdb40c6863dd4a0c6a677bf3 \
                sha1 7d9c9f8bc78b053ee13dd2a3a303a5adca49700d \
                sha256 5a6973b31b300c57389216687079e1592f5baae92538a992cab0995323a76494

post-extract {
    set go_deps \
        { github.com/jessevdk/go-flags \
          github.com/mattn/go-runewidth \
          github.com/nsf/termbox-go }
    foreach go_dep ${go_deps} {
        system "GOPATH=${worksrcpath} go get ${go_dep}"
    }
    file mkdir "${worksrcpath}/src/github.com/lestrrat"
    ln -s "${worksrcpath}" "${worksrcpath}/src/github.com/lestrrat/peco"
}

build.cmd       go
build.target    build
build.args      cmd/peco/peco.go
build.env       GOPATH="${worksrcpath}"

destroot {
    xinstall "${worksrcpath}/peco" "${destroot}/${prefix}/bin"
}

a draft of MacPorts Portfile for peco.