##
##  coredns.spec -- OpenPKG RPM Package Specification
##  Copyright (c) 2000-2025 OpenPKG Project <http://openpkg.org/>
##
##  Permission to use, copy, modify, and distribute this software for
##  any purpose with or without fee is hereby granted, provided that
##  the above copyright notice and this permission notice appear in all
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##
##  THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED OR IMPLIED
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##  MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
##  IN NO EVENT SHALL THE AUTHORS AND COPYRIGHT HOLDERS AND THEIR
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##  SUCH DAMAGE.
##

#   package version
%define       V_opkg  1.3.1
%define       V_dist  20190223

#   package information
Name:         coredns
Summary:      DNS Server
URL:          https://coredns.io/
Vendor:       Miek Gieben
Packager:     OpenPKG Project
Distribution: OpenPKG Community
Class:        EVAL
Group:        Networking
License:      Apache
Version:      %{V_opkg}.%{V_dist}
Release:      20190223

#   list of sources
Source0:      http://download.openpkg.org/components/versioned/coredns/coredns-%{V_dist}.tar.xz
Source1:      Corefile
Source2:      coredns.txt
Source3:      rc.coredns
Patch0:       coredns.patch

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

%description
    CoreDNS is a DNS server that started as a fork of Caddy. It has
    the same model: it chains middleware. In fact it's so similar that
    CoreDNS is now a server type plugin for Caddy. CoreDNS is the
    successor to SkyDNS. SkyDNS is a thin layer that exposes services in
    etcd in the DNS. CoreDNS builds on this idea and is a generic DNS
    server that can talk to multiple backends (etcd, kubernetes, etc.).
    CoreDNS aims to be a fast and flexible DNS server. The keyword here
    is flexible: with CoreDNS you are able to do what you want with your
    DNS data.

%track
    prog coredns:release = {
        version   = %{V_opkg}
        url       = https://github.com/coredns/coredns/releases
        regex     = v(__VER__)\.tar\.gz
    }
    prog coredns:snapshot = {
        version   = %{V_dist}
        url       = http://download.openpkg.org/components/versioned/coredns/
        regex     = coredns-(__VER__)\.tar\.xz
    }

%prep
    %setup -q -n coredns
    %patch -p0

%build
    #   build program
    export GOPATH=`pwd`
    cd src/github.com/coredns/coredns
    %{l_make} %{l_mflags} coredns

%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/coredns/zones \
        $RPM_BUILD_ROOT%{l_prefix}/var/coredns/run \
        $RPM_BUILD_ROOT%{l_prefix}/var/coredns/log

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

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

    #   install default configuration
    %{l_shtool} install -c -m 644 %{l_value -s -a} \
        %{SOURCE Corefile} \
        $RPM_BUILD_ROOT%{l_prefix}/etc/coredns/
    for name in `grep "^<file" %{SOURCE coredns.txt} | sed -e 's;^.*name=";;' -e 's;".*$;;'`; do
        name_escaped=`echo "$name" | sed -e 's;/;\\\\/;g'`
        (echo ""; cat %{SOURCE coredns.txt}; echo "") |\
            sed -e "1,/^<file name=\"$name_escaped\">/d" -e "/<\/file>/,\$d" >tmp.txt
        %{l_shtool} install -c -m 644 %{l_value -s -a} \
            tmp.txt $RPM_BUILD_ROOT%{l_prefix}/etc/coredns/$name
    done

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

%files -f files

%clean

%post
    if [ $1 -eq 2 ]; then
        #   after upgrade, restart service
        eval `%{l_rc} coredns status 2>/dev/null`
        [ ".$coredns_active" = .yes ] && %{l_rc} coredns restart
    fi
    exit 0

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

