# Macros for Go module building.
#
# Copyright (c) 2011 Sascha Peilicke <saschpe@gmx.de>
#

%go_ver         %(LC_ALL=C rpm -q --qf '%%{epoch}:%%{version}\\n' go | sed -e 's/ (none):/ /' -e 's/ 0:/ /' | grep -v "is not")
%go_arch        GOARCH

%go_dir         %{_libdir}/go
%go_sitedir     %{_libdir}/go/pkg
%go_sitearch    %{_libdir}/go/pkg/linux_%{go_arch}

%go_requires    %(echo '%*' | LC_ALL=C xargs -r rpm -q --qf 'Requires: %%{name} >= %%{epoch}:%%{version}\\n' | sed -e 's/ (none):/ /' -e 's/ 0:/ /' | grep -v "is not")

%go_provides \
Provides:       %{name}-devel = %{version} \
Provides:       %{name}-devel-static = %{version}

%go_disable_brp_strip_static_archive \
%define __os_install_post %(echo '%{__os_install_post}' | sed -e 's!/usr/lib/rpm/[^/]*/?brp-strip-static-archive %{__strip}!!g')

%go_make \
install -d %{buildroot}%{_bindir} \
HOST_EXTRA_CFLAGS="%{optflags}" TARGDIR=%{buildroot}%{go_sitearch} GOBIN=%{buildroot}%{_bindir} gomake
%go_make_install %{go_make} install
%go_make_test %{go_make} test

# "go install/build" expects valid $GOROOT for std library packages and potentially
# a valid $GOPATH with the expected GOPATH structure. Third party librarys need
# to be built with their "importpath" option exactly matching the expected import
# statement. This is important because the importpath will be baked into the library's
# type definitions at compile time. This means the package source must exist either
# inside a valid GOPATH or a relative path to the source must match the 'importpath'
# option when 'go install' is called.
#
# See "go help install/importpath/gopath"

%goinstall() \
export GOPATH=%{_builddir}/go \
mkdir -p %{_builddir}/go/src/%1 && mkdir %{_builddir}/go/bin -p && mv ./* %{_builddir}/go/src/%1 \
mkdir -p %{_builddir}/go/pkg/linux_%{go_arch}/%1 \
cd ../ && rmdir %{_builddir}/%(basename %1) \
ln -s %{_builddir}/go/src/%1 %{_builddir}/%(basename %1) \
install -d %{buildroot}%{go_sitearch} \
install -d %{buildroot}%{_bindir} \
if [ %# -gt 1 ]; then \
  if [ "%2" == "..." ]; then \
    GOIMPORT=%1%2 \
  else \
    GOIMPORT=%1/%2 \
  fi \
else \
  GOIMPORT=%1 \
fi \
GOPATH=%{_builddir}/go go install -s -v -x -p 4 $GOIMPORT \
cp -arv %{_builddir}/go/pkg/linux_%{go_arch}/%1 %{buildroot}%{go_sitearch} \
TMPBIN=%{_builddir}/go/bin \
if [ "$(ls -A $TMPBIN)" ]; then \
     install -m755 $TMPBIN/* %{buildroot}%{_bindir} \
fi \
%{nil}

%gotest() \
if [ %# -gt 1 ]; then \
  if [ "%2" == "..." ]; then \
    GOIMPORT=%1%2 \
  else \
    GOIMPORT=%1/%2 \
  fi \
else \
  GOIMPORT=%1 \
fi \
GOPATH=%{_builddir}/go \
go test $GOIMPORT \
%{nil}

%gofix() \
if [ %# -gt 1 ]; then \
  if [ "%2" == "..." ]; then \
    GOIMPORT=%1%2 \
  else \
    GOIMPORT=%1/%2 \
  fi \
else \
  GOIMPORT=%1 \
fi \
GOPATH=%{_builddir}/go \
go fix $GOIMPORT \
%{nil}