%global debug_package %{nil}

%global provider        github
%global provider_tld    com
%global project         globalcheck
%global repo            agent
# https://github.com/globalcheck/agent
%global provider_prefix %{provider}.%{provider_tld}/%{project}/%{repo}
%global import_path     %{provider_prefix}
%global commit          39185139d7499a32c7c9a6e87043fca83f50e816
%global shortcommit     %(c=%{commit}; echo ${c:0:7})

%if 0%{?fedora} >= 15 || 0%{?rhel} >= 7
%define use_systemd 1
%else
%define use_systemd 0
%endif

Name:             golang-%{provider}-%{project}-%{repo}
Version:          0.3.7
Release:          1.git%{shortcommit}%{?dist}
License:          GPLv2+
Summary:          GlobalCheck agent

URL:              https://%{provider_prefix}
Source0:          https://%{provider_prefix}/archive/%{commit}/%{repo}-%{shortcommit}.tar.gz
Source1:          gcagent.service
Source2:          gcagent.init

# e.g. el6 has ppc64 arch without gcc-go, so EA tag is required
ExclusiveArch:  %{?go_arches:%{go_arches}}%{!?go_arches:%{ix86} x86_64 aarch64 %{arm}}
# If go_compiler is not set to 1, there is no virtual provide. Use golang instead.
BuildRequires:  %{?go_compiler:compiler(go-compiler)}%{!?go_compiler:golang}

%if %{use_systemd}
BuildRequires:    systemd
Requires(post):   systemd
Requires(preun):  systemd
Requires(postun): systemd
%else
Requires(post):   chkconfig
Requires(preun):  chkconfig, initscripts
%endif

%description
%{summary}

%prep
%setup -q -n %{repo}-%{commit}

%build
# set up temporary build gopath, and put our directory there
mkdir -p ./_build/src/github.com/globalcheck
ln -s $(pwd) ./_build/src/github.com/globalcheck/gcagent

export GOPATH=$(pwd)/_build:%{gopath}

# https://github.com/golang/go/issues/28550
export GOPROXY=https://proxy.golang.org

export LDFLAGS="-X main.version=%{version}"

%if ! 0%{?gobuild:1}
%define gobuild(o:) go build -ldflags "${LDFLAGS:-} -B 0x$(head -c20 /dev/urandom|od -An -tx1|tr -d ' \\n')" -a -v -x %{?**};
%endif

%gobuild -o gcagent .

%install
install -d %{buildroot}%{_bindir}
install -d %{buildroot}%{_sysconfdir}
install -m 0755 ./gcagent %{buildroot}%{_bindir}/gcagent
install -m 0644 ./agent.toml %{buildroot}%{_sysconfdir}/gcagent.toml

%if %{use_systemd}
install -d %{buildroot}%{_unitdir}
install -m 0644 %{SOURCE1} %{buildroot}%{_unitdir}/gcagent.service
%else
install -d %{buildroot}%{_initddir}
install -m 0755 %{SOURCE2} %{buildroot}%{_initddir}/gcagent
install -m 0755 -d %{buildroot}%{_localstatedir}/log/gcagent
%endif

%post
%if %{use_systemd}
%systemd_post gcagent.service
%else
if [ $1 -eq 1 ]
then
    /sbin/chkconfig --add gcagent
fi
%endif

%preun
%if %{use_systemd}
%systemd_preun gcagent.service
%else
if [ $1 -eq 0 ]
then
    /sbin/service gcagent stop >/dev/null 2>&1
    /sbin/chkconfig --del gcagent
fi
%endif

%postun
%if %{use_systemd}
%systemd_postun gcagent.service
%endif

%files
%defattr(-,root,root,-)
%doc README.md
%{_bindir}/gcagent
%{_sysconfdir}/gcagent.toml
%if %{use_systemd}
%{_unitdir}/gcagent.service
%else
%{_initddir}/gcagent
%dir %{_localstatedir}/log/gcagent
%endif