# -*- 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
# $Id$

PortSystem          1.0

name                go
epoch               2
version             1.4.2
categories          lang
platforms           darwin freebsd linux
license             BSD
maintainers         ciserlohn
description         compiled, garbage-collected, concurrent programming \
                    language developed by Google Inc.
long_description    \
    The Go programming language is an open source project to make programmers \
    more productive. Go is expressive, concise, clean, and efficient. Its \
    concurrency mechanisms make it easy to write programs that get the most \
    out of multicore and networked machines, while its novel type system \
    enables flexible and modular program construction. Go compiles quickly \
    to machine code yet has the convenience of garbage collection and the \
    power of run-time reflection. It's a fast, statically typed, compiled \
    language that feels like a dynamically typed, interpreted language. Go \
    is developed by Google Inc.

homepage            https://golang.org/
master_sites        https://storage.googleapis.com/golang/
distfiles           ${name}${version}.src.tar.gz
worksrcdir          ${name}

checksums           rmd160  dea15b3b4c31554a47b40799f4b9a926ea760e70 \
                    sha256  299a6fd8f8adfdce15bc06bde926e7b252ae8e24dd5b16b7d8791ed79e7b5e9b

set GOROOT          ${worksrcpath}
set GOROOT_FINAL    ${prefix}/go

switch ${build_arch} {
    i386 {
        set GOARCH 386
        set cmd_prefix 8
    }
    x86_64 {
        set GOARCH amd64
        set cmd_prefix 6
    }
    default {
        # unsupported arch, but GOARCH needs to be set to something to prevent errors
        set GOARCH x
        set cmd_prefix 6
    }
}

pre-fetch {
    if {"big" == ${os.endian}} {
        ui_error "${name} can only be used on an Intel Mac or other computer with a little-endian processor."
        return -code error "incompatible processor"
    }
}

use_configure       no

build.dir           ${worksrcpath}/src
build.cmd           ./make.bash
build.target
build.env           GOROOT=${GOROOT} GOBIN= GOARCH=${GOARCH} \
                    GOROOT_FINAL=${GOROOT_FINAL} \
                    CC=${configure.cc} \
                    GCC=${configure.cc}

use_parallel_build  no
post-build {
    # remove mercurial extras
    system "find ${worksrcpath} -type d -name .hg -print0 | xargs -0 rm -rf"
}

test.run            yes
test.dir            ${worksrcpath}/src
test.cmd            ./run.bash
test.target
test.env            ${build.env}

destroot {
    # standard distribution
    file copy ${worksrcpath} ${destroot}${GOROOT_FINAL}

    # binary symlinks
    foreach f [list go gofmt] {
        system "cd ${destroot}${prefix}/bin/ && ln -s ../go/bin/$f ./$f"
    }
}

destroot.violate_mtree     yes

platform darwin {
    build.env-append GOOS=darwin
    test.env-append GOOS=darwin
}
platform freebsd {
    build.env-append GOOS=freebsd
    test.env-append GOOS=freebsd
}
platform linux {
    build.env-append GOOS=linux
    test.env-append GOOS=linux
}

livecheck.type      regex
livecheck.url       ${homepage}/dl/
livecheck.regex     {go([0-9.]+).src.tar.gz}