adding 3 files under contrib to automate rpm creation

contrib/Makefile

@@ -0,0 +1,50 @@
+RPM=rpm
+
+ALL=$(RPM)
+
+WDIR=$(HOME)
+##############################################################################
+# standard targets (all, clean, distclean, devclean, install)
+
+all: $(ALL)
+
+clean:
+	find .. -type f -name "*~" -exec rm  -f  {} \;
+	(rm -rf $(WDIR)/rpmbuild/RPMS/x86_64/gogs-0.9-20.x86_64.rpm \
+           $(WDIR)/rpmbuild/SRPMS/gogs-0.9-20.src.rpm \
+          ../gogs-0.9.20.tar.gz)
+ 
+
+# rpm making automation for CentOS/RHEL.
+ARCH ?= $(shell arch)
+ifeq ($(ARCH),x86_64)
+RPM_ARCH := x86_64
+else
+    ifeq ($(ARCH),i686)
+RPM_ARCH := i386
+    else
+$(error Unknown arch "$(ARCH)".)
+    endif
+endif
+
+# RPM_ARCH := noarch
+rpm:
+	# @create gogs tar ball.
+	(cd ..;rm -f gogs-0.9.20)
+	(cd ..;ln -s . gogs-0.9.20)
+	(cd ..;tar zhcf gogs-0.9.20.tar.gz --exclude gogs-0.9.20/gogs-0.9.20.tar.gz --exclude gogs-0.9.20/gogs-0.9.20 --exclude RCS --exclude CVS --exclude build-* --exclude *~ --exclude .git* gogs-0.9.20/)
+	(cd ..;rm -f gogs-0.9.20)
+	# build the rpm using rpmbuild from ./rmbuild as topdir
+	rm -rf ${WDIR}/rpmbuild && mkdir -p ${WDIR}/rpmbuild/SOURCES
+	cp  ../gogs-0.9.20.tar.gz ${WDIR}/rpmbuild/SOURCES/gogs-0.9.20.tar.gz
+	rpmbuild -ba --define "_topdir ${WDIR}/rpmbuild"   ./gogs.spec
+gitcommit:
+	git commit -a -m "lazy commit via make gitpush"
+
+gitpush:
+	git push origin develop
+
+installrpm: 
+	sudo $(RPM) -Uvh $(home)/rpmbuild/RPMS/x86_64/gogs-0.9-20.x86_64.rpm
+removerpm:
+	sudo $(RPM) -e gogs

contrib/gogs.service

@@ -0,0 +1,26 @@
+[Unit]o
+Description=Gogs (Go Git Service)
+After=syslog.target
+After=network.target
+After=mysqld.service
+#After=postgresql.service
+#After=memcached.service
+#After=redis.service
+
+[Service]
+# Modify these two values and uncomment them if you have
+# repos with lots of files and get an HTTP error 500 because
+# of that
+###
+LimitMEMLOCK=infinity
+LimitNOFILE=65535
+Type=simple
+User=root
+Group=root
+WorkingDirectory=/usr/local/gogs
+ExecStart=/usr/local/gogs/gogs web
+#Restart=always
+Environment=USER=gogs HOME=/home/gogs
+
+[Install]
+WantedBy=multi-user.target

contrib/gogs.spec

@@ -0,0 +1,82 @@
+Name: gogs
+Version: 0.9
+Release: 20
+
+Summary: A painless self-hosted Git service
+License: MIT
+Packager: T.J. Yang <tjyang2001@gmail.com>
+Group: Applications/System
+Url: https://github.com/gogits/gogs
+Source0: gogs-0.9.20.tar.gz
+BuildArch: x86_64
+BuildRoot: %{_tmppath}/%{name}-%{version}-root
+BuildRequires: golang
+# Allow newer compiler to suppress warnings
+%if 0%{?el6}
+Requires:  sqlite,mysql-server
+%else
+Requires:  sqlite,mariadb-server,mariadb
+%endif
+
+
+
+%description
+Gogs is a painless self-hosted Git Service written in Go. It aims to make the easiest, fastest and most painless way to set up a self-hosted Git service. With Go, this can be done in independent binary distribution across ALL platforms that Go supports, including Linux, Mac OS X, and Windows.
+
+%prep
+
+%setup -q -n %{name}-0.9.20
+
+%install
+rm -rf %{buildroot}
+mkdir -p %{buildroot}
+mkdir -p %{buildroot}/usr/local/gogs
+mkdir -p %{buildroot}/var/log/gogs
+touch  %{buildroot}/var/log/gogs/gogs.log
+
+mkdir -p $RPM_BUILD_ROOT%{_localstatedir}/gogs/log
+rsync -azp  .  --exclude=gogs/rpmbuild  --exclude=#.* %{buildroot}/usr/local/gogs
+
+# systemd gogs.service file
+mkdir -p %{buildroot}/etc/systemd/system
+sudo rsync -azpv  %{buildroot}/usr/local/gogs/contrib/gogs.service  %{buildroot}/etc/systemd/system/gogs.service
+#touch /var/log/gogs.log && chown gogs:gogs /var/log/gogs.log
+%preun
+#shutdown gogs if running
+#if [ $1 = 0 ] ; then
+#/sbin/install-info --delete %{_infodir}/%{name}.info %{_infodir}/dir || :
+#fi
+
+# https://www.redhat.com/archives/rpm-list/2008-September/msg00007.html
+%files
+%ghost %{_localstatedir}/log/gogs/%{name}.log
+%attr(-,gogs,gogs) %{_localstatedir}/log/gogs/%{name}.log
+
+%ghost /etc/systemd/system/gogs.service
+%attr(-,root,root) /etc/systemd/system/gogs.service
+
+%dir /usr/local/%{name}
+%attr(-,gogs,gogs) /usr/local/%{name}
+
+%post
+# remove all the binary and configs
+# hack before fix
+rsync -azp  /usr/local/gogs/contrib/gogs.service  /etc/systemd/system/gogs.service
+chmod 755    /etc/systemd/system/gogs.service
+chown root:root /etc/systemd/system/gogs.service
+# run a mysql -root to drop  all data in gogsdb  ?
+#
+#
+%changelog
+* Sun Apr 17 2016 T.J. Yang <tjyang2001@gmail.com> 1.0
+- Initial rpm.spec file for gogs.
+- TODOs:
+- 1. Adding pre/post install script
+- 2. Support CentOS 7 systemd and Centos 6 init scripts.
+- 3. roll in the go build -x process into this rpm one.
+- 4. Detect packageio.in's gogs rpm package.
+- 5. remove all gogs db in mariadb also ?
+
+
+
+