##
##  seaweedfs.spec -- OpenPKG RPM Package Specification
##  Copyright (c) 2000-2022 OpenPKG Project <http://openpkg.org/>
##
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##  the above copyright notice and this permission notice appear in all
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##
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##  IN NO EVENT SHALL THE AUTHORS AND COPYRIGHT HOLDERS AND THEIR
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##  SUCH DAMAGE.
##

#   package information
%define       V_seaweedfs_base  2.84
%define       V_seaweedfs_snap  20220103

#   package information
Name:         seaweedfs
Summary:      Distributed File Server
URL:          https://github.com/chrislusf/seaweedfs
Vendor:       Chris Lu
Packager:     OpenPKG Project
Distribution: OpenPKG Community
Class:        EVAL
Group:        Database
License:      Apache
Version:      %{V_seaweedfs_base}.%{V_seaweedfs_snap}
Release:      20220103

#   list of sources
Source0:      http://download.openpkg.org/components/versioned/seaweedfs/seaweedfs-%{V_seaweedfs_snap}.tar.xz
Source1:      rc.seaweedfs
Source2:      seaweedfs.conf

#   build information
BuildPreReq:  OpenPKG, openpkg >= 20160101, go
PreReq:       OpenPKG, openpkg >= 20160101

%description
    SeaweedFS is a simple and highly scalable distributed file system.
    There are two objectives: to store billions of files and to serve
    the files fast! Instead of supporting full POSIX file system
    semantics, SeaweedFS choose to implement only a key/file mapping,
    but it provides a hierarchical filer frontend, too. SeaweedFS
    started by implementing Facebook's Haystack design paper. It grows
    with more features along the way. SeaweedFS knows about three
    server roles: "filter" (hierarchical tree storage frontend server),
    "master" (volume managing server) and "volume" (data storage
    server).

%track
    prog seaweedfs:base = {
        version   = %{V_seaweedfs_base}
        url       = https://github.com/chrislusf/seaweedfs/releases
        regex     = (\d+\.\d+)\.tar\.gz
    }
    prog seaweedfs:snap = {
        version   = %{V_seaweedfs_snap}
        url       = http://download.openpkg.org/components/versioned/seaweedfs/
        regex     = seaweedfs-(__VER__)\.tar\.xz
    }

%prep
    %setup -q -n seaweedfs

%build
    #   build program
    (   export GOPATH=`pwd`
        cd $GOPATH/src/github.com/chrislusf/seaweedfs/weed
        go build -v -o weed
    ) || exit $?

%install
    #   create directory hierarchy
    %{l_shtool} mkdir -f -p -m 755 \
        $RPM_BUILD_ROOT%{l_prefix}/sbin \
        $RPM_BUILD_ROOT%{l_prefix}/etc/rc.d \
        $RPM_BUILD_ROOT%{l_prefix}/etc/seaweedfs \
        $RPM_BUILD_ROOT%{l_prefix}/var/seaweedfs/run \
        $RPM_BUILD_ROOT%{l_prefix}/var/seaweedfs/log \
        $RPM_BUILD_ROOT%{l_prefix}/var/seaweedfs/db

    #   install program
    %{l_shtool} install -c -s -m 755 \
        src/github.com/chrislusf/seaweedfs/weed/weed \
        $RPM_BUILD_ROOT%{l_prefix}/sbin/

    #   install run-command script
    %{l_shtool} install -c -m 755 %{l_value -s -a} \
        %{SOURCE rc.seaweedfs} $RPM_BUILD_ROOT%{l_prefix}/etc/rc.d/

    #   install server configuration
    %{l_shtool} install -c -m 644 %{l_value -s -a} \
        %{SOURCE seaweedfs.conf} $RPM_BUILD_ROOT%{l_prefix}/etc/seaweedfs/

    #   determine installation files
    %{l_rpmtool} files -v -ofiles -r$RPM_BUILD_ROOT \
        %{l_files_std} \
        '%config %{l_prefix}/etc/seaweedfs/*' \
        '%attr(-,%{l_rusr},%{l_rgrp}) %{l_prefix}/var/seaweedfs/*' \
        '%attr(-,%{l_rusr},%{l_rgrp}) %{l_prefix}/var/seaweedfs/*/*'

%files -f files

%clean

%post
    #   after upgrade, restart service
    [ $1 -eq 2 ] || exit 0
    eval `%{l_rc} seaweedfs status 2>/dev/null`
    [ ".$seaweedfs_active" = .yes ] && %{l_rc} seaweedfs restart
    exit 0

%preun
    #   before erase, stop service and remove log files
    [ $1 -eq 0 ] || exit 0
    %{l_rc} seaweedfs stop 2>/dev/null
    rm -rf $RPM_INSTALL_PREFIX/var/seaweedfs/log/*  >/dev/null 2>&1 || true
    rm -rf $RPM_INSTALL_PREFIX/var/seaweedfs/run/*  >/dev/null 2>&1 || true
    rm -rf $RPM_INSTALL_PREFIX/var/seaweedfs/db/*   >/dev/null 2>&1 || true
    exit 0