# SPEC file overview:
# https://docs.fedoraproject.org/en-US/quick-docs/creating-rpm-packages/#con_rpm-spec-file-overview
# Fedora packaging guidelines:
# https://docs.fedoraproject.org/en-US/packaging-guidelines/

%define vendor apache

%define livy_version 0.7.1
%define spark_major 2
%define spark_version 2.4.8
%define hadoop_version 2.7
%define livy_package apache-livy-%{livy_version}-incubating-bin
%define python_version 2.7
%define java_version 1.8.0
%define user_name apache-livy
%define group_name apache-livy
%define spark spark%{spark_major}
%define livy livy-%{spark}

Name: %{vendor}-%{livy}
Version: %{livy_version}
Release: 0%{?dist}
Summary: Apache Livy
Requires(pre): shadow-utils
BuildRequires: systemd-rpm-macros 

BuildRequires: /usr/bin/pathfix.py
Requires: mysql-connector-java

BuildArch:      noarch

License: Apache
URL: http://livy.apache.org
Source0: https://dlcdn.apache.org/incubator/livy/0.7.1-incubating/%{livy_package}.zip

Requires: java-%{java_version}-openjdk-headless 
Requires: %{vendor}-%{spark}

%description
Big data processing with Apache Spark

%prep
%setup -q -n %{livy_package}

%build


%install
mkdir -p %{buildroot}/opt/%{vendor}/%{livy_package}
mkdir -p %{buildroot}/%{_bindir}
mkdir -p %{buildroot}/%{_unitdir}
mkdir -p %{buildroot}/%{_sharedstatedir}/%{livy}
mkdir -p %{buildroot}/%{_sysconfdir}/sysconfig
mkdir -p %{buildroot}/%{_sysconfdir}/%{livy}
mkdir -p %{buildroot}/%{_localstatedir}/log/%{livy}/
mkdir -p %{buildroot}/%{_datadir}/%{name}/

cp -r * %{buildroot}/opt/%{vendor}/%{livy_package}
cp -r conf/* %{buildroot}/%{_sysconfdir}/%{livy}

ln -s ./%{livy_package} %{buildroot}/opt/%{vendor}/%{livy}

cat << EOF > %{buildroot}/%{_bindir}/%{livy}-server
#!/bin/bash
export LIVY_CONF_DIR=%{_sysconfdir}/%{livy}
/opt/%{vendor}/%{livy}/bin/livy-server \$@

EOF


cat << EOF > %{buildroot}/%{_unitdir}/%{livy}-server.service
[Unit]
Description=Spark Livy Server
After=network-online.target

[Service]
EnvironmentFile=%{_sysconfdir}/sysconfig/%{livy}
ExecStart=%{_bindir}/%{livy}-server
WorkingDirectory=%{_sharedstatedir}/%{livy}
User=%{user_name}

Type=simple
KillSignal=SIGTERM
Restart=on-failure
SendSIGKILL=no

[Install]
WantedBy=default.target

EOF


cat << EOF > %{buildroot}/%{_sysconfdir}/sysconfig/%{livy}
LIVY_LOG_DIR=%{_localstatedir}/log/%{livy}/
LIVY_CONF_DIR=%{_sysconfdir}/%{livy}/
EOF



cat << EOF > %{buildroot}/%{_sysconfdir}/%{livy}/livy-env.sh

umask 002
export JAVA_HOME=/usr/lib/jvm/jre-%{java_version}/
export SPARK_HOME=/opt/%{vendor}/%{spark}/
export SPARK_CONF_DIR=%{_sysconfdir}/%{spark}
EOF


%files
%defattr(-, root, root, -)
%attr(0755, root, root) /usr/bin/*
%config %{_sysconfdir}/%{livy}/livy-env.sh
%{_sysconfdir}/%{livy}/*.template
%{_unitdir}/%{livy}-*.service
%{_sysconfdir}/sysconfig/%{livy}
/opt/%{vendor}/%{livy_package}
/opt/%{vendor}/%{livy}
%dir %attr(2775, %{user_name}, %{group_name}) %{_sharedstatedir}/%{livy}
%dir %attr(2775, %{user_name}, %{group_name}) %{_localstatedir}/log/%{livy}

%pre

getent group %{group_name} >/dev/null || groupadd -r %{group_name}
getent passwd %{user_name} >/dev/null || \
    useradd -r -g %{group_name} -d %{_sharedstatedir}/%{livy} -s /sbin/nologin \
    -c "Useful comment about the purpose of this account" %{user_name}
exit 0

%post
%systemd_post %{livy}-server.service

%preun
%systemd_preun %{livy}-server.service

%postun
%systemd_postun_with_restart %{livy}-server.service


%changelog