# Maintainer: redfish <redfish@galactica.pw>

pkgname=ncdns
pkgver=0.3.2
pkgrel=1
_certinject_ver=0.1.1
_x509_compressed_ver=0.0.3
_gen_deps=("certinject=${_certinject_ver}" "x509-compressed=${_x509_compressed_ver}")

pkgdesc='Namecoin to DNS bridge daemon'
url='https://github.com/namecoin/ncdns'
arch=(x86_64 armv7h)
license=(GPL-3)

depends=(libcap)
optdepends=('namecoin-core: the Namecoin node')
makedepends=(go)
install="ncdns.install"
backup=("etc/ncdns.conf")

source=($pkgname-$pkgver.tar.gz::https://github.com/namecoin/ncdns/archive/v${pkgver}.tar.gz
  certinject-${_certinject_ver}.tar.gz::https://github.com/namecoin/certinject/archive/v${_certinject_ver}.tar.gz
  x509-compressed-${_x509_compressed_ver}.tar.gz::https://github.com/namecoin/x509-compressed/archive/v${_x509_compressed_ver}.tar.gz
  x509-compressed--drop-godebug-options.patch
  ncdns.service)

_gopath_dir="_gopath"

prepare() {
  export GOPATH="$srcdir/${_gopath_dir}"

  local _mod_rewrites=(
      # Workaround for a problem with a downstream dependency, whose
      # public path has changed, see
      # https://github.com/alecthomas/kingpin/commit/2e61e1e95c3b456c2414aada0efb75737df3b9a5
    "-replace=gopkg.in/alecthomas/kingpin.v2=github.com/alecthomas/kingpin/v2@v2.3.2"
  )

  cd $srcdir

  # Wrap the special dependencies that need a 'go generate' step into go modules
  local _dep_ver
  for _dep_ver in ${_gen_deps[*]}
  do
    local _dep=${_dep_ver%=*}
    local _ver=${_dep_ver#*=}
    pushd "${_dep}-${_ver}"
    go mod init github.com/namecoin/${_dep}
    go mod edit ${_mod_rewrites[*]}
    go mod tidy
    go generate ./...
    go mod tidy
    _mod_rewrites+=("-replace=github.com/namecoin/${_dep}=../${_dep}-${_ver}")
    popd
  done

  # Wrap the top-level application executable into a module
  pushd "$pkgname-$pkgver"
  go mod init github.com/namecoin/ncdns
  go mod edit ${_mod_rewrites[*]}
  go mod tidy
  popd

  # Patch a minor issue, where 'internal' godebug module is used by disallowed
  # Upstream: https://github.com/namecoin/x509-compressed/pull/4
  pushd "x509-compressed-${_x509_compressed_ver}"
  patch -p1 -i ../x509-compressed--drop-godebug-options.patch
  popd
}

build() {
  export GOPATH="$srcdir/${_gopath_dir}"
  cd "$srcdir/$pkgname-$pkgver"
  go build ./...
}

package() {
  export GOPATH="$srcdir/${_gopath_dir}"
  cd "$srcdir/$pkgname-$pkgver"

  go install ./...

  install -Dm 755 $GOPATH/bin/ncdns "$pkgdir/usr/bin/ncdns"
  install -Dm 644 $srcdir/ncdns.service "$pkgdir/usr/lib/systemd/system/ncdns.service"
  install -Dm 644 -t "$pkgdir/usr/share/doc/$pkgname" README.md _doc/ncdns.conf.example
  # we copy from template, but user must edit the conf file before starting service
  install -Dm 644  _doc/ncdns.conf.example "$pkgdir/etc/ncdns.conf"
}

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sha512sums=('f56f9b4f7c740370d0c07c437835c29158a5898892726492c130c4c3df79add6c03dc5a905c7564e7be2efa01a346ed3ef6895640557af9a4f0a4d30dccafa2a'
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