# Copyright 1999-2011 Gentoo Foundation
# Distributed under the terms of the GNU General Public License v2
# $Header: /var/cvsroot/gentoo-x86/www-servers/nginx/nginx-0.8.53.ebuild,v 1.3 2011/01/02 14:59:05 hwoarang Exp $

EAPI="2"

# Maintainer notes:
# - http_rewrite-independent pcre-support makes sense for matching locations without an actual rewrite
# - any http-module activates the main http-functionality and overrides USE=-http
# - keep the following 3 requirements in mind before adding external modules:
#   * alive upstream
#   * sane packaging
#   * builds cleanly
# - TODO: test the google-perftools module (included in vanilla tarball)

# prevent perl-module from adding automagic perl DEPENDs
GENTOO_DEPEND_ON_PERL="no"

# http_headers_more (http://github.com/agentzh/headers-more-nginx-module, BSD license)
HTTP_HEADERS_MORE_MODULE_PV="0.13"
HTTP_HEADERS_MORE_MODULE_P="ngx-http-headers-more-${HTTP_HEADERS_MORE_MODULE_PV}"
HTTP_HEADERS_MORE_MODULE_SHA1="9508330"

# http_passenger (http://www.modrails.com/, MIT license)
# TODO: currently builds some stuff in src_configure
PASSENGER_PV="3.0.2"
USE_RUBY="ruby19"
RUBY_OPTIONAL="yes"

# http_push (http://pushmodule.slact.net/, MIT license)
HTTP_PUSH_MODULE_P="nginx_http_push_module-0.692"

# http_cache_purge (http://labs.frickle.com/nginx_ngx_cache_purge/, BSD-2 license)
HTTP_CACHE_PURGE_MODULE_P="ngx_cache_purge-1.2"

inherit eutils ssl-cert toolchain-funcs perl-module ruby-ng flag-o-matic

DESCRIPTION="Robust, small and high performance http and reverse proxy server"
HOMEPAGE="http://nginx.net/
        http://www.modrails.com/
        http://pushmodule.slact.net/
        http://labs.frickle.com/nginx_ngx_cache_purge/"
SRC_URI="http://sysoev.ru/nginx/${P}.tar.gz
        nginx_modules_http_headers_more? ( http://github.com/agentzh/headers-more-nginx-module/tarball/v${HTTP_HEADERS_MORE_MODULE_PV} -> ${HTTP_HEADERS_MORE_MODULE_P}.tar.gz )
        nginx_modules_http_passenger? ( mirror://rubyforge/passenger/passenger-${PASSENGER_PV}.tar.gz )
        nginx_modules_http_push? ( http://pushmodule.slact.net/downloads/${HTTP_PUSH_MODULE_P}.tar.gz )
        nginx_modules_http_cache_purge? ( http://labs.frickle.com/files/${HTTP_CACHE_PURGE_MODULE_P}.tar.gz )"

LICENSE="BSD BSD-2 GPL-2 MIT"
SLOT="0"
KEYWORDS="amd64 ~ppc x86 ~x86-fbsd"

NGINX_MODULES_STD="access auth_basic autoindex browser charset empty_gif fastcgi
geo gzip limit_req limit_zone map memcached proxy referer rewrite scgi ssi
split_clients upstream_ip_hash userid uwsgi"
NGINX_MODULES_OPT="addition dav degradation flv geoip gzip_static image_filter
perl random_index realip secure_link stub_status sub xslt"
NGINX_MODULES_MAIL="imap pop3 smtp"
NGINX_MODULES_3RD="http_cache_purge http_headers_more http_passenger http_push"

IUSE="aio debug +http +http-cache ipv6 libatomic +pcre ssl vim-syntax"

for mod in $NGINX_MODULES_STD; do
        IUSE="${IUSE} +nginx_modules_http_${mod}"
done

for mod in $NGINX_MODULES_OPT; do
        IUSE="${IUSE} nginx_modules_http_${mod}"
done

for mod in $NGINX_MODULES_MAIL; do
        IUSE="${IUSE} nginx_modules_mail_${mod}"
done

for mod in $NGINX_MODULES_3RD; do
        IUSE="${IUSE} nginx_modules_${mod}"
done

CDEPEND="
        pcre? ( >=dev-libs/libpcre-4.2 )
        ssl? ( dev-libs/openssl )
        http-cache? ( userland_GNU? ( dev-libs/openssl ) )
        nginx_modules_http_geo? ( dev-libs/geoip )
        nginx_modules_http_gzip? ( sys-libs/zlib )
        nginx_modules_http_gzip_static? ( sys-libs/zlib )
        nginx_modules_http_image_filter? ( media-libs/gd )
        nginx_modules_http_perl? ( >=dev-lang/perl-5.8 )
        nginx_modules_http_rewrite? ( >=dev-libs/libpcre-4.2 )
        nginx_modules_http_secure_link? ( userland_GNU? ( dev-libs/openssl ) )
        nginx_modules_http_xslt? ( dev-libs/libxml2 dev-libs/libxslt )
        "
RDEPEND="${CDEPEND}"
DEPEND="${CDEPEND}
        arm? ( dev-libs/libatomic_ops )
        libatomic? ( dev-libs/libatomic_ops )"
PDEPEND="vim-syntax? ( app-vim/nginx-syntax )"

pkg_setup() {
        ebegin "Creating nginx user and group"
        enewgroup ${PN}
        enewuser ${PN} -1 -1 -1 ${PN}
        eend ${?}

        if use ipv6; then
                ewarn "Note that ipv6 support in nginx is still experimental."
                ewarn "Be sure to read comments on gentoo bug #274614"
                ewarn "http://bugs.gentoo.org/show_bug.cgi?id=274614"
        fi

        if use libatomic; then
                ewarn "GCC 4.1+ features built-in atomic operations."
                ewarn "Using libatomic_ops is only needed if using"
                ewarn "a different compiler or a GCC prior to 4.1"
        fi

        if [[ -n $NGINX_ADD_MODULES ]]; then
                ewarn "You are building custom modules via $NGINX_ADD_MODULES!"
                ewarn "This nginx installation is not supported!"
                ewarn "Make sure you can reproduce the bug without those modules"
                ewarn "_before_ reporting bugs."
        fi

        if use nginx_modules_http_passenger; then
                ruby-ng_pkg_setup
                use debug && append-flags -DPASSENGER_DEBUG
        fi

        if use !http; then
                ewarn "To actually disable all http-functionality you also have to disable"
                ewarn "all nginx http modules."
        fi
}

src_unpack() {
        # prevent ruby-ng.eclass from messing with src_unpack
        default
}

src_prepare() {
        sed -i 's/ make/ \$(MAKE)/' "${S}"/auto/lib/perl/make

}

src_configure() {
        local myconf= http_enabled= mail_enabled=

        use aio && myconf="${myconf} --with-file-aio --with-aio_module"
        use debug && myconf="${myconf} --with-debug"
        use ipv6 && myconf="${myconf} --with-ipv6"
        use libatomic && myconf="${myconf} --with-libatomic"
        use pcre && myconf="${myconf} --with-pcre"

        # HTTP modules
        for mod in $NGINX_MODULES_STD; do
                if use nginx_modules_http_${mod}; then
                        http_enabled=1
                else
                        myconf="${myconf} --without-http_${mod}_module"
                fi
        done

        for mod in $NGINX_MODULES_OPT; do
                if use nginx_modules_http_${mod}; then
                        http_enabled=1
                        myconf="${myconf} --with-http_${mod}_module"
                fi
        done

        if use nginx_modules_http_fastcgi; then
                myconf="${myconf} --with-http_realip_module"
        fi

        # third-party modules
        if use nginx_modules_http_headers_more; then
                http_enabled=1
                myconf="${myconf} --add-module=${WORKDIR}/agentzh-headers-more-nginx-module-${HTTP_HEADERS_MORE_MODULE_SHA1}"
        fi

        if use nginx_modules_http_passenger; then
                http_enabled=1
                myconf="${myconf} --add-module=${WORKDIR}/passenger-${PASSENGER_PV}/ext/nginx"
        fi

        if use nginx_modules_http_push; then
                http_enabled=1
                myconf="${myconf} --add-module=${WORKDIR}/${HTTP_PUSH_MODULE_P}"
        fi

        if use nginx_modules_http_cache_purge; then
                http_enabled=1
                myconf="${myconf} --add-module=${WORKDIR}/${HTTP_CACHE_PURGE_MODULE_P}"
        fi

        if use http || use http-cache; then
                http_enabled=1
        fi

        if [ $http_enabled ]; then
                use http-cache || myconf="${myconf} --without-http-cache"
                use ssl && myconf="${myconf} --with-http_ssl_module"
        else
                myconf="${myconf} --without-http --without-http-cache"
        fi

        # MAIL modules
        for mod in $NGINX_MODULES_MAIL; do
                if use nginx_modules_mail_${mod}; then
                        mail_enabled=1
                else
                        myconf="${myconf} --without-mail_${mod}_module"
                fi
        done

        if [ $mail_enabled ]; then
                myconf="${myconf} --with-mail"
                use ssl && myconf="${myconf} --with-mail_ssl_module"
        fi

        # custom modules
        for mod in $NGINX_ADD_MODULES; do
                myconf="${myconf} --add-module=${mod}"
        done

        # http://bugs.gentoo.org/show_bug.cgi?id=286772
        export LANG=C LC_ALL=C
        tc-export CC

        ./configure 
                --prefix=/usr 
                --sbin-path=/usr/sbin/nginx 
                --conf-path=/etc/${PN}/${PN}.conf 
                --error-log-path=/var/log/${PN}/error_log 
                --pid-path=/var/run/${PN}.pid 
                --lock-path=/var/lock/nginx.lock 
                --user=${PN} --group=${PN} 
                --with-cc-opt="-I${ROOT}usr/include" 
                --with-ld-opt="-L${ROOT}usr/lib" 
                --http-log-path=/var/log/${PN}/access_log 
                --http-client-body-temp-path=/var/tmp/${PN}/client 
                --http-proxy-temp-path=/var/tmp/${PN}/proxy 
                --http-fastcgi-temp-path=/var/tmp/${PN}/fastcgi 
                --http-scgi-temp-path=/var/tmp/${PN}/scgi 
                --http-uwsgi-temp-path=/var/tmp/${PN}/uwsgi 
                ${myconf} || die "configure failed"
}

src_compile() {
        # http://bugs.gentoo.org/show_bug.cgi?id=286772
        export LANG=C LC_ALL=C
        emake LINK="${CC} ${LDFLAGS}" OTHERLDFLAGS="${LDFLAGS}" || die "emake failed"
}

src_install() {
        keepdir /var/log/${PN} /var/tmp/${PN}/{client,proxy,fastcgi,scgi,uwsgi}

        dosbin objs/nginx
        newinitd "${FILESDIR}"/nginx.init-r2 nginx

        cp "${FILESDIR}"/nginx.conf-r4 conf/nginx.conf
        rm conf/win-utf conf/koi-win conf/koi-utf

        dodir /etc/${PN}
        insinto /etc/${PN}
        doins conf/*

        dodoc CHANGES* README

        # logrotate
        insinto /etc/logrotate.d
        newins "${FILESDIR}"/nginx.logrotate nginx

        if use nginx_modules_http_perl; then
                cd "${S}"/objs/src/http/modules/perl/
                einstall DESTDIR="${D}" INSTALLDIRS=vendor || die "failed to install perl stuff"
                fixlocalpod
        fi

        if use nginx_modules_http_push; then
                docinto ${HTTP_PUSH_MODULE_P}
                dodoc "${WORKDIR}"/${HTTP_PUSH_MODULE_P}/{changelog.txt,protocol.txt,README}
        fi

        if use nginx_modules_http_cache_purge; then
                docinto ${HTTP_CACHE_PURGE_MODULE_P}
                dodoc "${WORKDIR}"/${HTTP_CACHE_PURGE_MODULE_P}/{CHANGES,README}
        fi

        if use nginx_modules_http_passenger; then
                # passengers Rakefile is so horribly broken that we have to do it
                # manually
                cd "${WORKDIR}"/passenger-${PASSENGER_PV}

                export RUBY="ruby18"

                insinto $(${RUBY} -rrbconfig -e 'print Config::CONFIG["archdir"]')/phusion_passenger
                insopts -m 0755
                doins ext/phusion_passenger/*.so
                doruby -r lib/phusion_passenger

                exeinto /usr/bin
                doexe bin/passenger-memory-stats bin/passenger-status

                exeinto /usr/libexec/passenger/bin
                doexe bin/passenger-spawn-server

                exeinto /usr/libexec/passenger/ext/nginx
                doexe ext/nginx/HelperServer
        fi
}

pkg_postinst() {
        if use ssl; then
                if [ ! -f "${ROOT}"/etc/ssl/${PN}/${PN}.key ]; then
                        install_cert /etc/ssl/${PN}/${PN}
                        chown ${PN}:${PN} "${ROOT}"/etc/ssl/${PN}/${PN}.{crt,csr,key,pem}
                fi
        fi
}