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582 lines
17 KiB
582 lines
17 KiB
# Copyright 1999-2015 Gentoo Foundation
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# Distributed under the terms of the GNU General Public License v2
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# $Id$
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# @ECLASS: webapp.eclass
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# @MAINTAINER:
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# web-apps@gentoo.org
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# @BLURB: functions for installing applications to run under a web server
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# @DESCRIPTION:
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# The webapp eclass contains functions to handle web applications with
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# webapp-config. Part of the implementation of GLEP #11
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# @ECLASS-VARIABLE: WEBAPP_DEPEND
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# @DESCRIPTION:
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# An ebuild should use WEBAPP_DEPEND if a custom DEPEND needs to be built, most
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# notably in combination with WEBAPP_OPTIONAL.
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WEBAPP_DEPEND=">=app-admin/webapp-config-1.50.15"
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# @ECLASS-VARIABLE: WEBAPP_NO_AUTO_INSTALL
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# @DESCRIPTION:
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# An ebuild sets this to `yes' if an automatic installation and/or upgrade is
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# not possible. The ebuild should overwrite pkg_postinst() and explain the
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# reason for this BEFORE calling webapp_pkg_postinst().
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# @ECLASS-VARIABLE: WEBAPP_OPTIONAL
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# @DESCRIPTION:
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# An ebuild sets this to `yes' to make webapp support optional, in which case
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# you also need to take care of USE-flags and dependencies.
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if [[ "${WEBAPP_OPTIONAL}" != "yes" ]]; then
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[[ "${WEBAPP_NO_AUTO_INSTALL}" == "yes" ]] || IUSE="vhosts"
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SLOT="${PVR}"
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DEPEND="${WEBAPP_DEPEND}"
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RDEPEND="${DEPEND}"
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fi
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EXPORT_FUNCTIONS pkg_postinst pkg_setup src_install pkg_prerm
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INSTALL_DIR="/${PN}"
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IS_UPGRADE=0
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IS_REPLACE=0
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INSTALL_CHECK_FILE="installed_by_webapp_eclass"
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SETUP_CHECK_FILE="setup_by_webapp_eclass"
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ETC_CONFIG="${ROOT}etc/vhosts/webapp-config"
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WEBAPP_CONFIG="${ROOT}usr/sbin/webapp-config"
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WEBAPP_CLEANER="${ROOT}usr/sbin/webapp-cleaner"
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# ==============================================================================
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# INTERNAL FUNCTIONS
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# ==============================================================================
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# Load the config file /etc/vhosts/webapp-config
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# Supports both the old bash version, and the new python version
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webapp_read_config() {
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debug-print-function $FUNCNAME $*
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if has_version '>=app-admin/webapp-config-1.50'; then
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ENVVAR=$(${WEBAPP_CONFIG} --query ${PN} ${PVR}) || die "Could not read settings from webapp-config!"
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eval ${ENVVAR}
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elif [[ "${WEBAPP_OPTIONAL}" != "yes" ]]; then
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# ETC_CONFIG might not be available
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. ${ETC_CONFIG} || die "Unable to read ${ETC_CONFIG}"
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elif [[ -f "${ETC_CONFIG}" ]]; then
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# WEBAPP_OPTIONAL is set to yes
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# and this must run only if ETC_CONFIG actually exists
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. ${ETC_CONFIG} || die "Unable to read ${ETC_CONFIG}"
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fi
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}
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# Check whether a specified file exists in the given directory (`.' by default)
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webapp_checkfileexists() {
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debug-print-function $FUNCNAME $*
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local my_prefix=${2:+${2}/}
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if [[ ! -e "${my_prefix}${1}" ]]; then
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msg="ebuild fault: file '${1}' not found"
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eerror "$msg"
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eerror "Please report this as a bug at https://bugs.gentoo.org/"
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die "$msg"
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fi
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}
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webapp_check_installedat() {
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debug-print-function $FUNCNAME $*
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${WEBAPP_CONFIG} --show-installed -h localhost -d "${INSTALL_DIR}" 2> /dev/null
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}
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webapp_strip_appdir() {
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debug-print-function $FUNCNAME $*
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echo "${1#${MY_APPDIR}/}"
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}
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webapp_strip_d() {
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debug-print-function $FUNCNAME $*
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echo "${1#${D}}"
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}
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webapp_strip_cwd() {
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debug-print-function $FUNCNAME $*
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echo "${1/#.\///}"
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}
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webapp_getinstalltype() {
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debug-print-function $FUNCNAME $*
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if ! has vhosts ${IUSE} || use vhosts; then
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return
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fi
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local my_output
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my_output="$(webapp_check_installedat)"
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if [[ $? -eq 0 ]]; then
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# something is already installed there
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# make sure it isn't the same version
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local my_pn="$(echo ${my_output} | awk '{ print $1 }')"
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local my_pvr="$(echo ${my_output} | awk '{ print $2 }')"
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REMOVE_PKG="${my_pn}-${my_pvr}"
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if [[ "${my_pn}" == "${PN}" ]]; then
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if [[ "${my_pvr}" != "${PVR}" ]]; then
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elog "This is an upgrade"
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IS_UPGRADE=1
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# for binpkgs, reset status, var declared in global scope
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IS_REPLACE=0
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else
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elog "This is a re-installation"
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IS_REPLACE=1
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# for binpkgs, reset status, var declared in global scope
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IS_UPGRADE=0
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fi
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else
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elog "${my_output} is installed there"
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fi
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else
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# for binpkgs, reset status, var declared in global scope
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IS_REPLACE=0
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IS_UPGRADE=0
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elog "This is an installation"
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fi
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}
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# ==============================================================================
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# PUBLIC FUNCTIONS
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# ==============================================================================
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# @FUNCTION: need_httpd
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# @DESCRIPTION:
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# Call this function AFTER your ebuilds DEPEND line if any of the available
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# webservers are able to run this application.
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need_httpd() {
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DEPEND="${DEPEND}
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|| ( virtual/httpd-basic virtual/httpd-cgi virtual/httpd-fastcgi )"
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}
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# @FUNCTION: need_httpd_cgi
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# @DESCRIPTION:
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# Call this function AFTER your ebuilds DEPEND line if any of the available
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# CGI-capable webservers are able to run this application.
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need_httpd_cgi() {
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DEPEND="${DEPEND}
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|| ( virtual/httpd-cgi virtual/httpd-fastcgi )"
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}
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# @FUNCTION: need_httpd_fastcgi
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# @DESCRIPTION:
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# Call this function AFTER your ebuilds DEPEND line if any of the available
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# FastCGI-capabale webservers are able to run this application.
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need_httpd_fastcgi() {
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DEPEND="${DEPEND}
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virtual/httpd-fastcgi"
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}
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# @FUNCTION: webapp_configfile
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# @USAGE: <file> [more files ...]
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# @DESCRIPTION:
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# Mark a file config-protected for a web-based application.
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webapp_configfile() {
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debug-print-function $FUNCNAME $*
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local m
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for m in "$@"; do
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webapp_checkfileexists "${m}" "${D}"
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local my_file="$(webapp_strip_appdir "${m}")"
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my_file="$(webapp_strip_cwd "${my_file}")"
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elog "(config) ${my_file}"
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echo "${my_file}" >> ${D}/${WA_CONFIGLIST}
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done
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}
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# @FUNCTION: webapp_hook_script
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# @USAGE: <file>
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# @DESCRIPTION:
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# Install a script that will run after a virtual copy is created, and
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# before a virtual copy has been removed.
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webapp_hook_script() {
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debug-print-function $FUNCNAME $*
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webapp_checkfileexists "${1}"
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elog "(hook) ${1}"
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cp "${1}" "${D}/${MY_HOOKSCRIPTSDIR}/$(basename "${1}")" || die "Unable to install ${1} into ${D}/${MY_HOOKSCRIPTSDIR}/"
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chmod 555 "${D}/${MY_HOOKSCRIPTSDIR}/$(basename "${1}")"
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}
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# @FUNCTION: webapp_postinst_txt
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# @USAGE: <lang> <file>
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# @DESCRIPTION:
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# Install a text file containing post-installation instructions.
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webapp_postinst_txt() {
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debug-print-function $FUNCNAME $*
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webapp_checkfileexists "${2}"
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elog "(info) ${2} (lang: ${1})"
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cp "${2}" "${D}/${MY_APPDIR}/postinst-${1}.txt"
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}
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# @FUNCTION: webapp_postupgrade_txt
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# @USAGE: <lang> <file>
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# @DESCRIPTION:
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# Install a text file containing post-upgrade instructions.
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webapp_postupgrade_txt() {
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debug-print-function $FUNCNAME $*
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webapp_checkfileexists "${2}"
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elog "(info) ${2} (lang: ${1})"
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cp "${2}" "${D}/${MY_APPDIR}/postupgrade-${1}.txt"
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}
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# helper for webapp_serverowned()
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_webapp_serverowned() {
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debug-print-function $FUNCNAME $*
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webapp_checkfileexists "${1}" "${D}"
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local my_file="$(webapp_strip_appdir "${1}")"
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my_file="$(webapp_strip_cwd "${my_file}")"
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echo "${my_file}" >> "${D}/${WA_SOLIST}"
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}
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# @FUNCTION: webapp_serverowned
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# @USAGE: [-R] <file> [more files ...]
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# @DESCRIPTION:
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# Identify a file which must be owned by the webserver's user:group settings.
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# The ownership of the file is NOT set until the application is installed using
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# the webapp-config tool. If -R is given directories are handled recursively.
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webapp_serverowned() {
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debug-print-function $FUNCNAME $*
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local a m
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if [[ "${1}" == "-R" ]]; then
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shift
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for m in "$@"; do
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find "${D}${m}" | while read a; do
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a=$(webapp_strip_d "${a}")
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_webapp_serverowned "${a}"
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done
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done
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else
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for m in "$@"; do
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_webapp_serverowned "${m}"
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done
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fi
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}
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# @FUNCTION: webapp_server_configfile
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# @USAGE: <server> <file> [new name]
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# @DESCRIPTION:
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# Install a configuration file for the webserver. You need to specify a
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# webapp-config supported <server>. if no new name is given `basename $2' is
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# used by default. Note: this function will automagically prepend $1 to the
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# front of your config file's name.
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webapp_server_configfile() {
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debug-print-function $FUNCNAME $*
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webapp_checkfileexists "${2}"
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# WARNING:
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#
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# do NOT change the naming convention used here without changing all
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# the other scripts that also rely upon these names
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local my_file="${1}-${3:-$(basename "${2}")}"
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elog "(${1}) config file '${my_file}'"
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cp "${2}" "${D}/${MY_SERVERCONFIGDIR}/${my_file}"
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}
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# @FUNCTION: webapp_sqlscript
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# @USAGE: <db> <file> [version]
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# @DESCRIPTION:
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# Install a SQL script that creates/upgrades a database schema for the web
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# application. Currently supported database engines are mysql and postgres.
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# If a version is given the script should upgrade the database schema from
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# the given version to $PVR.
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webapp_sqlscript() {
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debug-print-function $FUNCNAME $*
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webapp_checkfileexists "${2}"
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dodir "${MY_SQLSCRIPTSDIR}/${1}"
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# WARNING:
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#
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# do NOT change the naming convention used here without changing all
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# the other scripts that also rely upon these names
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if [[ -n "${3}" ]]; then
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elog "(${1}) upgrade script for ${PN}-${3} to ${PVR}"
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cp "${2}" "${D}${MY_SQLSCRIPTSDIR}/${1}/${3}_to_${PVR}.sql"
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chmod 600 "${D}${MY_SQLSCRIPTSDIR}/${1}/${3}_to_${PVR}.sql"
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else
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elog "(${1}) create script for ${PN}-${PVR}"
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cp "${2}" "${D}/${MY_SQLSCRIPTSDIR}/${1}/${PVR}_create.sql"
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chmod 600 "${D}/${MY_SQLSCRIPTSDIR}/${1}/${PVR}_create.sql"
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fi
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}
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# @FUNCTION: webapp_src_preinst
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# @DESCRIPTION:
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# You need to call this function in src_install() BEFORE anything else has run.
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# For now we just create required webapp-config directories.
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webapp_src_preinst() {
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debug-print-function $FUNCNAME $*
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# sanity checks, to catch bugs in the ebuild
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if [[ ! -f "${T}/${SETUP_CHECK_FILE}" ]]; then
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eerror
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eerror "This ebuild did not call webapp_pkg_setup() at the beginning"
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eerror "of the pkg_setup() function"
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eerror
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eerror "Please log a bug on https://bugs.gentoo.org"
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eerror
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eerror "You should use emerge -C to remove this package, as the"
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eerror "installation is incomplete"
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eerror
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die "Ebuild did not call webapp_pkg_setup() - report to https://bugs.gentoo.org"
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fi
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# Hint, see the webapp_read_config() function to find where these are
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# defined.
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dodir "${MY_HTDOCSDIR}"
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dodir "${MY_HOSTROOTDIR}"
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dodir "${MY_CGIBINDIR}"
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dodir "${MY_ICONSDIR}"
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dodir "${MY_ERRORSDIR}"
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dodir "${MY_SQLSCRIPTSDIR}"
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dodir "${MY_HOOKSCRIPTSDIR}"
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dodir "${MY_SERVERCONFIGDIR}"
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}
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# ==============================================================================
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# EXPORTED FUNCTIONS
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# ==============================================================================
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# @FUNCTION: webapp_pkg_setup
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# @DESCRIPTION:
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# The default pkg_setup() for this eclass. This will gather required variables
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# from webapp-config and check if there is an application installed to
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# `${ROOT}/var/www/localhost/htdocs/${PN}/' if USE=vhosts is not set.
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#
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# You need to call this function BEFORE anything else has run in your custom
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# pkg_setup().
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webapp_pkg_setup() {
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debug-print-function $FUNCNAME $*
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# to test whether or not the ebuild has correctly called this function
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# we add an empty file to the filesystem
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#
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# we used to just set a variable in the shell script, but we can
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# no longer rely on Portage calling both webapp_pkg_setup() and
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# webapp_src_install() within the same shell process
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touch "${T}/${SETUP_CHECK_FILE}"
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# special case - some ebuilds *do* need to overwride the SLOT
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if [[ "${SLOT}+" != "${PVR}+" && "${WEBAPP_MANUAL_SLOT}" != "yes" ]]; then
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die "Set WEBAPP_MANUAL_SLOT=\"yes\" if you need to SLOT manually"
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fi
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# pull in the shared configuration file
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G_HOSTNAME="localhost"
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webapp_read_config
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local my_dir="${ROOT}${VHOST_ROOT}/${MY_HTDOCSBASE}/${PN}"
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# if USE=vhosts is enabled OR no application is installed we're done here
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if ! has vhosts ${IUSE} || use vhosts || [[ ! -d "${my_dir}" ]]; then
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return
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fi
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local my_output
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my_output="$(webapp_check_installedat)"
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if [[ $? -ne 0 ]]; then
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# okay, whatever is there, it isn't webapp-config-compatible
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echo
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ewarn
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ewarn "You already have something installed in ${my_dir}"
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ewarn
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ewarn "Whatever is in ${my_dir}, it's not"
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ewarn "compatible with webapp-config."
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ewarn
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ewarn "This ebuild may be overwriting important files."
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ewarn
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echo
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if has "${EAPI:-0}" 0 1 2; then
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ebeep 10
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fi
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elif [[ "$(echo ${my_output} | awk '{ print $1 }')" != "${PN}" ]]; then
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echo
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eerror "You already have ${my_output} installed in ${my_dir}"
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eerror
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eerror "I cannot upgrade a different application"
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eerror
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echo
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die "Cannot upgrade contents of ${my_dir}"
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fi
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}
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# @FUNCTION: webapp_src_install
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# @DESCRIPTION:
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# This is the default src_install(). For now, we just make sure that root owns
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# everything, and that there are no setuid files.
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#
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# You need to call this function AFTER everything else has run in your custom
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# src_install().
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webapp_src_install() {
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debug-print-function $FUNCNAME $*
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# to test whether or not the ebuild has correctly called this function
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# we add an empty file to the filesystem
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#
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# we used to just set a variable in the shell script, but we can
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# no longer rely on Portage calling both webapp_src_install() and
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# webapp_pkg_postinst() within the same shell process
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touch "${D}/${MY_APPDIR}/${INSTALL_CHECK_FILE}"
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chown -R "${VHOST_DEFAULT_UID}:${VHOST_DEFAULT_GID}" "${D}/"
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chmod -R u-s "${D}/"
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chmod -R g-s "${D}/"
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keepdir "${MY_PERSISTDIR}"
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fowners "root:0" "${MY_PERSISTDIR}"
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fperms 755 "${MY_PERSISTDIR}"
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}
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# @FUNCTION: webapp_pkg_postinst
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# @DESCRIPTION:
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# The default pkg_postinst() for this eclass. This installs the web application to
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# `${ROOT}/var/www/localhost/htdocs/${PN}/' if USE=vhosts is not set. Otherwise
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# display a short notice how to install this application with webapp-config.
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#
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# You need to call this function AFTER everything else has run in your custom
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# pkg_postinst().
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webapp_pkg_postinst() {
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debug-print-function $FUNCNAME $*
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webapp_read_config
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# sanity checks, to catch bugs in the ebuild
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if [[ ! -f "${ROOT}${MY_APPDIR}/${INSTALL_CHECK_FILE}" ]]; then
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eerror
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eerror "This ebuild did not call webapp_src_install() at the end"
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eerror "of the src_install() function"
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eerror
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eerror "Please log a bug on https://bugs.gentoo.org"
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eerror
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eerror "You should use emerge -C to remove this package, as the"
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eerror "installation is incomplete"
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eerror
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die "Ebuild did not call webapp_src_install() - report to https://bugs.gentoo.org"
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fi
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if has vhosts ${IUSE}; then
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if ! use vhosts; then
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echo
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elog "vhosts USE flag not set - auto-installing using webapp-config"
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G_HOSTNAME="localhost"
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webapp_read_config
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local my_mode=-I
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webapp_getinstalltype
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if [[ "${IS_REPLACE}" == "1" ]]; then
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elog "${PN}-${PVR} is already installed - replacing"
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my_mode=-I
|
|
elif [[ "${IS_UPGRADE}" == "1" ]]; then
|
|
elog "${REMOVE_PKG} is already installed - upgrading"
|
|
my_mode=-U
|
|
else
|
|
elog "${PN}-${PVR} is not installed - using install mode"
|
|
fi
|
|
|
|
my_cmd="${WEBAPP_CONFIG} -h localhost -u root -d ${INSTALL_DIR} ${my_mode} ${PN} ${PVR}"
|
|
elog "Running ${my_cmd}"
|
|
${my_cmd}
|
|
|
|
echo
|
|
local cleaner="${WEBAPP_CLEANER} -p -C ${CATEGORY}/${PN}"
|
|
einfo "Running ${cleaner}"
|
|
${cleaner}
|
|
else
|
|
elog
|
|
elog "The 'vhosts' USE flag is switched ON"
|
|
elog "This means that Portage will not automatically run webapp-config to"
|
|
elog "complete the installation."
|
|
elog
|
|
elog "To install ${PN}-${PVR} into a virtual host, run the following command:"
|
|
elog
|
|
elog " webapp-config -h <host> -d ${PN} -I ${PN} ${PVR}"
|
|
elog
|
|
elog "For more details, see the webapp-config(8) man page"
|
|
fi
|
|
else
|
|
elog
|
|
elog "This ebuild does not support the 'vhosts' USE flag."
|
|
elog "This means that Portage will not automatically run webapp-config to"
|
|
elog "complete the installation."
|
|
elog
|
|
elog "To install ${PN}-${PVR} into a virtual host, run the following command:"
|
|
elog
|
|
elog " webapp-config -h <host> -d ${PN} -I ${PN} ${PVR}"
|
|
elog
|
|
elog "For more details, see the webapp-config(8) man page"
|
|
fi
|
|
}
|
|
|
|
# @FUNCTION: webapp_pkg_prerm
|
|
# @DESCRIPTION:
|
|
# This is the default pkg_prerm() for this eclass. If USE=vhosts is not set
|
|
# remove all installed copies of this web application. Otherwise instruct the
|
|
# user to manually remove those copies. See bug #136959.
|
|
webapp_pkg_prerm() {
|
|
debug-print-function $FUNCNAME $*
|
|
|
|
local my_output=
|
|
my_output="$(${WEBAPP_CONFIG} --list-installs ${PN} ${PVR})"
|
|
[[ $? -ne 0 ]] && return
|
|
|
|
local x
|
|
if has vhosts ${IUSE} && ! use vhosts; then
|
|
echo "${my_output}" | while read x; do
|
|
if [[ -f "${x}"/.webapp ]]; then
|
|
. "${x}"/.webapp
|
|
if [[ -n "${WEB_HOSTNAME}" && -n "${WEB_INSTALLDIR}" ]]; then
|
|
${WEBAPP_CONFIG} -h ${WEB_HOSTNAME} -d ${WEB_INSTALLDIR} -C ${PN} ${PVR}
|
|
fi
|
|
else
|
|
ewarn "Cannot find file ${x}/.webapp"
|
|
fi
|
|
done
|
|
elif [[ "${my_output}" != "" ]]; then
|
|
echo
|
|
ewarn
|
|
ewarn "Don't forget to use webapp-config to remove any copies of"
|
|
ewarn "${PN}-${PVR} installed in"
|
|
ewarn
|
|
|
|
echo "${my_output}" | while read x; do
|
|
if [[ -f "${x}"/.webapp ]]; then
|
|
ewarn " ${x}"
|
|
else
|
|
ewarn "Cannot find file ${x}/.webapp"
|
|
fi
|
|
done
|
|
|
|
ewarn
|
|
echo
|
|
fi
|
|
}
|