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108 lines
3.7 KiB
108 lines
3.7 KiB
# Copyright 1999-2018 Gentoo Foundation
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# Distributed under the terms of the GNU General Public License v2
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# @ECLASS: readme.gentoo-r1.eclass
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# @MAINTAINER:
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# Pacho Ramos <pacho@gentoo.org>
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# @AUTHOR:
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# Author: Pacho Ramos <pacho@gentoo.org>
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# @BLURB: install a doc file shown via elog messages
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# @DESCRIPTION:
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# An eclass for installing a README.gentoo doc file recording tips
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# shown via elog messages. With this eclass, those elog messages will only be
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# shown at first package installation and a file for later reviewing will be
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# installed under /usr/share/doc/${PF}
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#
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# You need to call readme.gentoo_create_doc in src_install phase and
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# readme.gentoo_print_elog in pkg_postinst
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if [[ -z ${_README_GENTOO_ECLASS} ]]; then
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_README_GENTOO_ECLASS=1
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case "${EAPI:-0}" in
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0|1|2|3)
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die "Unsupported EAPI=${EAPI:-0} (too old) for ${ECLASS}"
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;;
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4|5|6|7)
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;;
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*)
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die "Unsupported EAPI=${EAPI} (unknown) for ${ECLASS}"
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;;
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esac
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# @ECLASS-VARIABLE: DISABLE_AUTOFORMATTING
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# @DEFAULT_UNSET
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# @DESCRIPTION:
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# If non-empty, DOC_CONTENTS information will be strictly respected,
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# not getting it automatically formatted by fmt. If empty, it will
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# rely on fmt for formatting and 'echo -e' options to tweak lines a bit.
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# @ECLASS-VARIABLE: FORCE_PRINT_ELOG
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# @DEFAULT_UNSET
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# @DESCRIPTION:
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# If non-empty this variable forces elog messages to be printed.
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# @ECLASS-VARIABLE: README_GENTOO_SUFFIX
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# @DESCRIPTION:
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# If you want to specify a suffix for README.gentoo file please export it.
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: ${README_GENTOO_SUFFIX:=""}
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# @FUNCTION: readme.gentoo_create_doc
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# @DESCRIPTION:
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# Create doc file with ${DOC_CONTENTS} variable (preferred) and, if not set,
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# look for "${FILESDIR}/README.gentoo" contents. You can use
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# ${FILESDIR}/README.gentoo-${SLOT} also.
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# Usually called at src_install phase.
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readme.gentoo_create_doc() {
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debug-print-function ${FUNCNAME} "${@}"
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if [[ -n "${DOC_CONTENTS}" ]]; then
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if [[ -n "${DISABLE_AUTOFORMATTING}" ]]; then
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echo "${DOC_CONTENTS}" > "${T}"/README.gentoo || die
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else
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local saved_flags=$-
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set -f # disable filename expansion in echo arguments
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echo -e ${DOC_CONTENTS} | fold -s -w 70 \
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| sed 's/[[:space:]]*$//' > "${T}"/README.gentoo
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assert
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set +f -${saved_flags}
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fi
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elif [[ -f "${FILESDIR}/README.gentoo-${SLOT%/*}" ]]; then
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cp "${FILESDIR}/README.gentoo-${SLOT%/*}" "${T}"/README.gentoo || die
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elif [[ -f "${FILESDIR}/README.gentoo${README_GENTOO_SUFFIX}" ]]; then
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cp "${FILESDIR}/README.gentoo${README_GENTOO_SUFFIX}" "${T}"/README.gentoo || die
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else
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die "You are not specifying README.gentoo contents!"
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fi
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dodoc "${T}"/README.gentoo
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README_GENTOO_DOC_VALUE=$(< "${T}/README.gentoo")
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}
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# @FUNCTION: readme.gentoo_print_elog
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# @DESCRIPTION:
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# Print elog messages with "${T}"/README.gentoo contents. They will be
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# shown only when package is installed at first time.
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# Usually called at pkg_postinst phase.
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#
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# If you want to show them always, please set FORCE_PRINT_ELOG to a non empty
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# value in your ebuild before this function is called.
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# This can be useful when, for example, DOC_CONTENTS is modified, then, you can
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# rely on specific REPLACING_VERSIONS handling in your ebuild to print messages
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# when people update from versions still providing old message.
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readme.gentoo_print_elog() {
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debug-print-function ${FUNCNAME} "${@}"
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if [[ -z "${README_GENTOO_DOC_VALUE}" ]]; then
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die "readme.gentoo_print_elog invoked without matching readme.gentoo_create_doc call!"
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elif ! [[ -n "${REPLACING_VERSIONS}" ]] || [[ -n "${FORCE_PRINT_ELOG}" ]]; then
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echo -e "${README_GENTOO_DOC_VALUE}" | while read -r ELINE; do elog "${ELINE}"; done
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elog ""
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elog "(Note: Above message is only printed the first time package is"
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elog "installed. Please look at ${EPREFIX}/usr/share/doc/${PF}/README.gentoo*"
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elog "for future reference)"
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fi
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}
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fi
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