name=go
majver=1.9
version=$majver
bootstrap_version=1.4.3

# Go doesn't like being stripped
options="!strip,$options"

define_option '!bootstrap: Bootstrap this program'

dlextract "https://storage.googleapis.com/golang/$name$version.src.tar.gz" \
          'da2d44ea384076efec43ee1f8b7d45d2'

if option bootstrap; then
    download "https://storage.googleapis.com/golang/$name$bootstrap_version.src.tar.gz" \
             'dfb604511115dd402a77a553a5923a04'
fi
_

if option bootstrap; then
    mkdir bootstrap; cd bootstrap
    extract "$name$bootstrap_version.src.tar.gz"

    cd "$name/src"
    CGO_ENABLED=0 ./make.bash

    cd ..
    export GOROOT_BOOTSTRAP="$PWD"
    cd ../..
else
    export GOROOT_BOOTSTRAP="$GOROOT"
fi

cd "$name"
export GOROOT="$PWD"

( cd src
    GOROOT_FINAL="/$dir_prefix/$dir_lib/go/$name$majver" \
    ./make.bash
    ../bin/go install -buildmode=shared -linkshared std
)

# Clean up a bit
rm -rf pkg/bootstrap pkg/obj
find src -type f \( ! -name "*.go" -a ! -name "*.c" -a ! -name "*.s" -a ! -name "*.S" -a ! -name "*.h" \) -delete
find src -type d -empty -delete

mkdir -p "$dir_install/$dir_prefix/$dir_lib/go/$name$majver"
cp -at "$dir_install/$dir_prefix/$dir_lib/go/$name$majver" bin pkg src

# Set global GOPATH for external libraries
cat > go.sh << EOF
export GOROOT="/$dir_prefix/$dir_lib/go/$name$majver"
export PATH="\$PATH:\$GOROOT/bin"
EOF
install -Dm755 -t "$dir_install/$dir_prefix/$dir_sysconf/profile.d" go.sh

# vim:set tabstop=4 shiftwidth=4 syntax=sh expandtab: