#
# spec file for package go
#
# Copyright (c) 2016 SUSE LINUX GmbH, Nuernberg, Germany.
#
# All modifications and additions to the file contributed by third parties
# remain the property of their copyright owners, unless otherwise agreed
# upon. The license for this file, and modifications and additions to the
# file, is the same license as for the pristine package itself (unless the
# license for the pristine package is not an Open Source License, in which
# case the license is the MIT License). An "Open Source License" is a
# license that conforms to the Open Source Definition (Version 1.9)
# published by the Open Source Initiative.

# Please submit bugfixes or comments via http://bugs.opensuse.org/
#


%if 0%{?suse_version} > 1320 || 0%{?suse_version} == 1315
%define with_gccgo 1
%else
%if 0%{?suse_version} == 1315 && 0%{?is_opensuse}
%define with_gccgo 1
%else
%define with_gccgo 0
%endif
%endif

%define go_api 1.5
Name:           go
Version:        1.5.2
Release:        0
Summary:        A compiled, garbage-collected, concurrent programming language
License:        BSD-3-Clause
Group:          Development/Languages/Other
Url:            http://golang.org
Source0:        http://golang.org/dl/go%{version}.src.tar.gz
Source1:        go-rpmlintrc
Source2:        go.sh
Source3:        macros.go
Source4:        README.SUSE
Source5:        golang-macros.rb
Source6:        go.gdbinit
# PATCH-FIX-OPENSUSE add -s flag to 'go install' (don't rebuild/install std libs)
Patch1:         go-1.5-build-dont-reinstall-stdlibs.patch
# PATCH-FIX-OPENSUSE re-enable build binary only packages (we are binary distro)
# see http://code.google.com/p/go/issues/detail?id=2775 & also issue 3268
Patch2:         allow-binary-only-packages.patch
#PATCH-FIX-OPENSUSE use -x verbose build output for qemu-arm builders
Patch3:         verbose-build.patch
# PATCH-FIX-OPENSUSE BNC#776058
Patch4:         go-1.5-install-dont-reinstall-stdlibs.patch
# PATCH-FIX-OPENSUSE enable writing tools outside $GOROOT/pkg/tool for packaging
Patch5:         tools-packaging.patch
# armv6l needs this patch for our build system
# see https://groups.google.com/forum/#!topic/golang-nuts/MqKTX_XIOKE
Patch6:         armv6l.patch
# PATCH-FIX-OPENSUSE fix_certificates_lookup.patch fcastelli@suse.com -- this patch forces Go to look for certificates only in the openSUSE/SLE locations. It also fixes certificate loading on SLE11, see https://github.com/golang/go/issues/6391
# PATCH-FIX-SUSE fix_certificates_lookup.patch fcastelli@suse.com -- this patch forces Go to look for certificates only in the openSUSE/SLE locations. It also fixes certificate loading on SLE11, see https://github.com/golang/go/issues/6391
Patch7:         fix_certificates_lookup.patch
# PATCH-FIX-UPSTREAM marguerite@opensuse.org - find /usr/bin/go-5 when bootstrapping with gcc5-go
Patch8:         gcc5-go.patch
BuildRoot:      %{_tmppath}/%{name}-%{version}-build
# boostrap
%if %{with_gccgo}
BuildRequires:  gcc5-go
%else
BuildRequires:  go1.4
%endif
%if 0%{?suse_version} >= 1210
BuildRequires:  mercurial
BuildRequires:  systemd
%endif
%if 0%{?suse_version} >= 1100
BuildRequires:  fdupes
Recommends:     go-doc
#BNC#818502 debug edit tool of rpm fails on i586 builds
%if 0%{?suse_version} > 1230
BuildRequires:  rpm >= 4.11.1
%endif
%endif
# for go.gdbinit, directory ownership
BuildRequires:  gdb
Requires(post):	update-alternatives
Requires(postun):	update-alternatives
Requires:       gcc
# for golang-macros.rb
Requires:       ruby
Provides:       go-devel = %{name}%{version}
Provides:       go-devel-static = %{name}%{version}
Provides:       golang(API) = %{go_api}
Obsoletes:      go-devel < %{name}%{version}
# go-vim/emacs were separate projects starting from 1.4
Obsoletes:      go-emacs <= 1.3.3
Obsoletes:      go-vim <= 1.3.3
ExclusiveArch:  %ix86 x86_64 aarch64 ppc64 ppc64le

%description
Go is an expressive, concurrent, garbage collected systems programming language
that is type safe and memory safe. It has pointers but no pointer arithmetic.
Go has fast builds, clean syntax, garbage collection, methods for any type, and
run-time reflection. It feels like a dynamic language but has the speed and
safety of a static language.

%package doc
Summary:        Go documentation
Group:          Documentation/Other
Requires:       %{name} = %{version}

%description doc
Go examples and documentation.

%prep
%setup -q -n %{name}
%patch1 -p1
%patch2 -p1
%patch3 -p1
%patch4 -p1
%patch5 -p1
%ifarch armv6hl
%patch6 -p1
%endif
%patch7 -p1
%if %{with_gccgo}
%patch8 -p1
%endif
cp %{SOURCE4} .

# setup go_arch (BSD-like scheme)
%ifarch %ix86
%define go_arch 386
%endif
%ifarch x86_64
%define go_arch amd64
%endif
%ifarch aarch64
%define go_arch arm64
%endif
%ifarch %arm
%define go_arch arm
%endif
%ifarch ppc64
%define go_arch ppc64
%endif
%ifarch ppc64le
%define go_arch ppc64le
%endif
sed -i 's|GOARCH|%{go_arch}|' %{SOURCE3}

%build
%if %{with_gccgo}
export GOROOT_BOOTSTRAP=%{_prefix}
%else
export GOROOT_BOOTSTRAP=%{_libdir}/go1.4
%endif
export GOROOT="`pwd`"
export GOROOT_FINAL=%{_libdir}/go
export GOBIN="$GOROOT/bin"
mkdir -p "$GOBIN"
cd src
HOST_EXTRA_CFLAGS="%{optflags} -Wno-error" ./make.bash

%ifarch x86_64
# Install race detection version of std libraries (amd64 only)
cd ../
bin/go install -race std
bin/go install -buildmode=shared std
%endif

%install
export GOROOT="%{buildroot}%{_libdir}/%{name}"
install -Dm644 %{SOURCE2} $GOROOT/bin/profile.d/go.sh

# locations for third party libraries, see README-openSUSE for info about locations.
install -d  %{buildroot}%{_datadir}/go/contrib
install -d  $GOROOT/contrib/pkg/linux_%{go_arch}
ln -s %{_libdir}/%{name}/contrib/pkg/ %{buildroot}%{_datadir}/go/contrib/pkg 
install -d  %{buildroot}%{_datadir}/go/contrib/cmd
install -d  %{buildroot}%{_datadir}/go/contrib/src
install -Dm644 README.SUSE $GOROOT/contrib/
ln -s %{_libdir}/go/contrib/README.SUSE %{buildroot}%{_datadir}/go/contrib/README.SUSE

# source files for go install, godoc, etc
install -d %{buildroot}%{_datadir}/go
for ext in *.{go,c,h,s,S,py}; do
  find src -name ${ext} -exec install -Dm644 \{\} %{buildroot}%{_datadir}/go/\{\} \;
done
mkdir -p $GOROOT/src
for i in $(ls %{buildroot}/usr/share/go/src);do
  ln -s /usr/share/go/src/$i $GOROOT/src/$i
done

# copy document templates, packages, obj libs and command utilities
mkdir -p $GOROOT/bin
mkdir -p $GOROOT/lib
# remove bootstrap
rm -rf pkg/bootstrap
mv pkg $GOROOT
mv bin/* $GOROOT/bin
rm -f %{buildroot}%{_bindir}/{hgpatch,quietgcc}

# update-alternatives
mkdir -p %{buildroot}%{_sysconfdir}/alternatives
mkdir -p %{buildroot}%{_bindir}
mkdir -p %{buildroot}%{_sysconfdir}/profile.d
touch %{buildroot}%{_sysconfdir}/alternatives/{go,gofmt,go.sh}
ln -sf %{_sysconfdir}/alternatives/go %{buildroot}%{_bindir}/go
ln -sf %{_sysconfdir}/alternatives/gofmt %{buildroot}%{_bindir}/gofmt
ln -sf %{_sysconfdir}/alternatives/go.sh %{buildroot}%{_sysconfdir}/profile.d/go.sh

# documentation and examples
# fix documetation permissions (rpmlint warning)
find doc/ misc/ -type f -exec chmod 0644 '{}' \;
# remove unwanted arch-dependant binaries (rpmlint warning)
rm -rf misc/cgo/test/{_*,*.o,*.out,*.6,*.8}
# prepare go-doc
mkdir -p %{buildroot}%{_docdir}/%{name}
cp -r AUTHORS CONTRIBUTORS CONTRIBUTING.md LICENSE PATENTS README.md README.SUSE %{buildroot}%{_docdir}/%{name}
cp -r doc/* %{buildroot}%{_docdir}/%{name}

# install RPM macros ($GOARCH prepared in %%prep section)
install -Dm644 %{SOURCE3} %{buildroot}%{_sysconfdir}/rpm/macros.go
install -Dm755 %{SOURCE5} %{buildroot}%{_prefix}/lib/rpm/golang-macros.rb

# gdbinit
mkdir -p %{buildroot}%{_sysconfdir}/gdbinit.d
install -m 0644 %{SOURCE6} %{buildroot}%{_sysconfdir}/gdbinit.d/go.gdb
%if "%{_lib}" == "lib64"
sed -i "s/lib/lib64/" %{buildroot}%{_sysconfdir}/gdbinit.d/go.gdb
%endif

%if 0%{?suse_version} >= 1100
%fdupes -s %{buildroot}%{_prefix}
%endif

%post
update-alternatives \
	--install %{_bindir}/go go %{_libdir}/%{name}/bin/go 30 \
	--slave %{_bindir}/gofmt gofmt %{_libdir}/%{name}/bin/gofmt \
	--slave %{_sysconfdir}/profile.d/go.sh go.sh %{_libdir}/%{name}/bin/profile.d/go.sh

%postun
if [ $1 -eq 0 ] ; then
	update-alternatives --remove go %{_libdir}/%{name}/bin/go
fi

%files
%defattr(-,root,root,-)
%{_bindir}/go
%{_bindir}/gofmt
%{_libdir}/go/
%{_datadir}/go/
%ghost %{_sysconfdir}/alternatives/go
%ghost %{_sysconfdir}/alternatives/gofmt
%ghost %{_sysconfdir}/alternatives/go.sh
%config %{_sysconfdir}/profile.d/go.sh
%config %{_sysconfdir}/rpm/macros.go
%{_prefix}/lib/rpm/golang-macros.rb
%config %{_sysconfdir}/gdbinit.d/go.gdb
%dir %{_docdir}/%{name}/
%doc %{_docdir}/%{name}/AUTHORS
%doc %{_docdir}/%{name}/CONTRIBUTORS
%doc %{_docdir}/%{name}/CONTRIBUTING.md
%doc %{_docdir}/%{name}/LICENSE
%doc %{_docdir}/%{name}/PATENTS
%doc %{_docdir}/%{name}/README.md
%doc %{_docdir}/%{name}/README.SUSE

%files doc
%defattr(-,root,root,-)
%doc %{_docdir}/%{name}/codewalk
%doc %{_docdir}/%{name}/articles
%doc %{_docdir}/%{name}/progs
%doc %{_docdir}/%{name}/play
%doc %{_docdir}/%{name}/gopher
%doc %{_docdir}/%{name}/devel
%doc %{_docdir}/%{name}/*.html
%doc %{_docdir}/%{name}/*.css
%doc %{_docdir}/%{name}/*.png

%changelog