%global forgeurl  https://pagure.io/go-rpm-macros
Version:   3.6.0
%forgemeta

#https://src.fedoraproject.org/rpms/redhat-rpm-config/pull-request/51
%global _spectemplatedir %{_datadir}/rpmdevtools/fedora
%global _docdir_fmt     %{name}

# Master definition that will be written to macro files
%global golang_arches_future x86_64 %{arm} aarch64 ppc64le s390x riscv64
%global golang_arches   %{ix86} %{golang_arches_future}
%global gccgo_arches    %{mips}
%if 0%{?rhel} >= 9
%global golang_arches   x86_64 aarch64 ppc64le s390x
%endif
# Go sources can contain arch-specific files and our macros will package the
# correct files for each architecture. Therefore, move gopath to _libdir and
# make Go devel packages archful
%global gopath          %{_datadir}/gocode

# whether to bundle golist or require it as a dependency
%if 0%{?rhel}
%ifarch %{golang_arches} %{gccgo_arches}
%global bundle_golist 1
%endif
%endif

%global golist_version 0.10.4
%if 0%{?bundle_golist}
%global golist_builddir golist-%{golist_version}
%global golist_goipath pagure.io/golist
# where to bundle the golist executable
%global golist_execdir %{_libexecdir}/go-rpm-macros
# define gobuild to avoid this package requiring itself to build
%undefine _auto_set_build_flags
%global _dwz_low_mem_die_limit 0
%define gobuild(o:) GO111MODULE=on go build -buildmode pie -compiler gc -tags="rpm_crashtraceback ${GO_BUILDTAGS-${BUILDTAGS-}}" -a -v -x -ldflags "${GO_LDFLAGS-${LDFLAGS-}}  -B 0x$(echo "%{name}-%{version}-%{release}-${SOURCE_DATE_EPOCH:-}" | sha1sum | cut -d ' ' -f1) -compressdwarf=false -linkmode=external -extldflags '%{build_ldflags}'"  %{?**};
%else
%global debug_package %{nil}
%endif

Name:      go-rpm-macros
Release:   %autorelease
Summary:   Build-stage rpm automation for Go packages

License:   GPL-3.0-or-later
URL:       %{forgeurl}
Source:    %{forgesource}
Source1:   https://pagure.io/golist/archive/v%{golist_version}/golist-%{golist_version}.tar.gz
# vendored dependency tarball, to create:
# tar xf golist-%%{golist_version}.tar.gz ; pushd golist-%%{golist_version} ; \
# go mod init %%{golist_goipath} && go mod tidy && go mod vendor && \
# tar Jcf ../golist-%%{golist_version}-vendor.tar.xz go.mod go.sum vendor/ ; popd
Source2:   golist-%{golist_version}-vendor.tar.xz

Requires:  go-srpm-macros = %{version}-%{release}
Requires:  go-filesystem  = %{version}-%{release}

%if 0%{?bundle_golist}
BuildRequires: golang
Provides:  bundled(golist) = %{golist_version}
%else
Requires:  golist
%endif

%ifarch %{golang_arches}
Requires:  golang
Provides:  compiler(golang)
Provides:  compiler(go-compiler) = 2
Obsoletes: go-compilers-golang-compiler < %{version}-%{release}
%endif

%ifarch %{gccgo_arches}
Requires:  gcc-go
Provides:  compiler(gcc-go)
Provides:  compiler(go-compiler) = 1
Obsoletes: go-compilers-gcc-go-compiler < %{version}-%{release}
%endif

%description
This package provides build-stage rpm automation to simplify the creation of Go
language (golang) packages.

It does not need to be included in the default build root: go-srpm-macros will
pull it in for Go packages only.

%package -n go-srpm-macros
Summary:   Source-stage rpm automation for Go packages
BuildArch: noarch
Requires:  redhat-rpm-config

%description -n go-srpm-macros
This package provides SRPM-stage rpm automation to simplify the creation of Go
language (golang) packages.

It limits itself to the automation subset required to create Go SRPM packages
and needs to be included in the default build root.

The rest of the automation is provided by the go-rpm-macros package, that
go-srpm-macros will pull in for Go packages only.

%package -n go-filesystem
Summary:   Directories used by Go packages
License:   LicenseRef-Fedora-Public-Domain

%description -n go-filesystem
This package contains the basic directory layout used by Go packages.

%package -n go-rpm-templates
Summary:   RPM spec templates for Go packages
License:   MIT
# go-rpm-macros only exists on some architectures, so this package cannot be noarch
Requires:  go-rpm-macros = %{version}-%{release}
#https://src.fedoraproject.org/rpms/redhat-rpm-config/pull-request/51
#Requires:  redhat-rpm-templates

%description -n go-rpm-templates
This package contains documented rpm spec templates showcasing how to use the
macros provided by go-rpm-macros to create Go packages.

%prep
%autosetup -p1 %{forgesetupargs} -a1
%writevars -f rpm/macros.d/macros.go-srpm golang_arches golang_arches_future gccgo_arches gopath
for template in templates/rpm/*\.spec ; do
  target=$(echo "${template}" | sed "s|^\(.*\)\.spec$|\1-bare.spec|g")
  grep -v '^#' "${template}" > "${target}"
  touch -r "${template}" "${target}"
done

# unpack golist and vendor deps
%if 0%{?bundle_golist}
tar -C %{golist_builddir} -xf %{SOURCE2}
cp %{golist_builddir}/LICENSE LICENSE-golist
%endif

%build
# build golist
%if 0%{?bundle_golist}
pushd %{golist_builddir}
for cmd in cmd/* ; do
  %gobuild -o bin/$(basename $cmd) ./$cmd
done
popd
%endif

%install
install -m 0755 -vd   %{buildroot}%{rpmmacrodir}

install -m 0755 -vd   %{buildroot}%{_rpmluadir}/fedora/srpm
install -m 0644 -vp   rpm/lua/srpm/*lua \
                      %{buildroot}%{_rpmluadir}/fedora/srpm

%ifarch %{golang_arches} %{gccgo_arches}
# Some of those probably do not work with gcc-go right now
# This is not intentional, but mips is not a primary Fedora architecture
# Patches and PRs are welcome

install -m 0755 -vd   %{buildroot}%{gopath}/src

install -m 0755 -vd   %{buildroot}%{_spectemplatedir}

install -m 0644 -vp   templates/rpm/*spec \
                      %{buildroot}%{_spectemplatedir}

install -m 0755 -vd   %{buildroot}%{_bindir}
install -m 0755 bin/* %{buildroot}%{_bindir}

install -m 0644 -vp   rpm/macros.d/macros.go-*rpm* \
                      %{buildroot}%{rpmmacrodir}
install -m 0755 -vd   %{buildroot}%{_rpmluadir}/fedora/rpm
install -m 0644 -vp   rpm/lua/rpm/*lua \
                      %{buildroot}%{_rpmluadir}/fedora/rpm
install -m 0755 -vd   %{buildroot}%{_rpmconfigdir}/fileattrs
install -m 0644 -vp   rpm/fileattrs/*.attr \
                      %{buildroot}%{_rpmconfigdir}/fileattrs/
install -m 0755 -vp   rpm/*\.{prov,deps} \
                      %{buildroot}%{_rpmconfigdir}/
%else
install -m 0644 -vp   rpm/macros.d/macros.go-srpm \
                      %{buildroot}%{rpmmacrodir}
%endif

%ifarch %{golang_arches}
install -m 0644 -vp   rpm/macros.d/macros.go-compilers-golang{,-pie} \
                      %{buildroot}%{_rpmconfigdir}/macros.d/
%endif

%ifarch %{gccgo_arches}
install -m 0644 -vp   rpm/macros.d/macros.go-compilers-gcc \
                      %{buildroot}%{_rpmconfigdir}/macros.d/
%endif

# install golist
%if 0%{?bundle_golist}
install -m 0755 -vd                     %{buildroot}%{golist_execdir}
install -m 0755 -vp %{golist_builddir}/bin/* %{buildroot}%{golist_execdir}/
sed -i "s,golist ,%{golist_execdir}/golist ,g" \
  %{buildroot}%{_bindir}/go-rpm-integration \
  %{buildroot}%{_rpmconfigdir}/gosymlink.deps \
  %{buildroot}%{_rpmmacrodir}/macros.go-rpm
%endif

%ifarch %{golang_arches} %{gccgo_arches}
%files
%license LICENSE.txt
%if %{defined bundle_golist}
%license LICENSE-golist %{golist_builddir}/vendor/modules.txt
%endif
%doc README.md
%{_bindir}/*
%{_rpmconfigdir}/fileattrs/*.attr
%{_rpmconfigdir}/*.prov
%{_rpmconfigdir}/*.deps
%{_rpmmacrodir}/macros.go-rpm*
%{_rpmmacrodir}/macros.go-compiler*
%{_rpmluadir}/fedora/rpm/*.lua
# package golist
%if 0%{?bundle_golist}
%{golist_execdir}/golist
%endif


%files -n go-rpm-templates
%license LICENSE-templates.txt
%doc README.md
# https://src.fedoraproject.org/rpms/redhat-rpm-config/pull-request/51
%dir %{dirname:%{_spectemplatedir}}
%dir %{_spectemplatedir}
%{_spectemplatedir}/*.spec

%files -n go-filesystem
%dir %{gopath}
%dir %{gopath}/src
%endif

# we only build go-srpm-macros on all architectures
%files -n go-srpm-macros
%license LICENSE.txt
%doc README.md
%{_rpmmacrodir}/macros.go-srpm
%{_rpmluadir}/fedora/srpm/*.lua

%changelog
%autochangelog