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authorUlrich Müller <ulm@gentoo.org>2008-08-20 11:55:25 +0000
committerUlrich Müller <ulm@gentoo.org>2008-08-20 11:55:25 +0000
commita5be9595ab9962769c99a55af4e4b60946d33236 (patch)
treea5770dacbc7b3ec77ab644bb9007c9eb1c3ff1d2 /eclass
parentSplit off stand-alone package for emacs-updater. (diff)
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svn path=/emacs-overlay/; revision=1132
Diffstat (limited to 'eclass')
-rw-r--r--eclass/ChangeLog7
-rw-r--r--eclass/elisp-common.eclass421
2 files changed, 428 insertions, 0 deletions
diff --git a/eclass/ChangeLog b/eclass/ChangeLog
index f2a4853..565d718 100644
--- a/eclass/ChangeLog
+++ b/eclass/ChangeLog
@@ -1,3 +1,10 @@
+2008-08-10 Ulrich Mueller <ulm@gentoo.org>
+
+ * elisp-common.eclass (elisp-site-regen): Fix issue with empty
+ einfo lines. Indent here-document. Change wording of message,
+ "no longer" -> "not", since the underlying change from
+ site-start.el to site-gentoo.el was in 2004.
+
2008-05-25 Ulrich Mueller <ulm@gentoo.org>
* elisp.eclass (SIMPLE_ELISP): Remove variable.
diff --git a/eclass/elisp-common.eclass b/eclass/elisp-common.eclass
new file mode 100644
index 0000000..4dc9ed3
--- /dev/null
+++ b/eclass/elisp-common.eclass
@@ -0,0 +1,421 @@
+# Copyright 1999-2008 Gentoo Foundation
+# Distributed under the terms of the GNU General Public License v2
+# $Header: /var/cvsroot/gentoo-x86/eclass/elisp-common.eclass,v 1.42 2008/08/10 16:54:22 ulm Exp $
+#
+# Copyright 2002-2004 Matthew Kennedy <mkennedy@gentoo.org>
+# Copyright 2003 Jeremy Maitin-Shepard <jbms@attbi.com>
+# Copyright 2004-2005 Mamoru Komachi <usata@gentoo.org>
+# Copyright 2007-2008 Christian Faulhammer <opfer@gentoo.org>
+# Copyright 2007-2008 Ulrich Müller <ulm@gentoo.org>
+#
+# @ECLASS: elisp-common.eclass
+# @MAINTAINER:
+# Feel free to contact the Emacs team through <emacs@gentoo.org> if you have
+# problems, suggestions or questions.
+# @BLURB: Emacs-related installation utilities
+# @DESCRIPTION:
+#
+# Usually you want to use this eclass for (optional) GNU Emacs support of
+# your package. This is NOT for XEmacs!
+#
+# Many of the steps here are sometimes done by the build system of your
+# package (especially compilation), so this is mainly for standalone elisp
+# files you gathered from somewhere else.
+#
+# When relying on the emacs USE flag, you need to add
+#
+# emacs? ( virtual/emacs )
+#
+# to your DEPEND/RDEPEND line and use the functions provided here to bring
+# the files to the correct locations.
+#
+# .SS
+# src_compile() usage:
+#
+# An elisp file is compiled by the elisp-compile() function defined here and
+# simply takes the source files as arguments.
+#
+# elisp-compile *.el || die "elisp-compile failed"
+#
+# In the case of interdependent elisp files, you can use the elisp-comp()
+# function which makes sure all files are loadable.
+#
+# elisp-comp *.el || die "elisp-comp failed"
+#
+# Function elisp-make-autoload-file() can be used to generate a file with
+# autoload definitions for the lisp functions. It takes the output file name
+# (default: "${PN}-autoloads.el") and a list of directories (default: working
+# directory) as its arguments. Use of this function requires that the elisp
+# source files contain magic ";;;###autoload" comments. See the Emacs Lisp
+# Reference Manual (node "Autoload") for a detailed explanation.
+#
+# .SS
+# src_install() usage:
+#
+# The resulting compiled files (.elc) should be put in a subdirectory of
+# /usr/share/emacs/site-lisp/ which is named after the first argument
+# of elisp-install(). The following parameters are the files to be put in
+# that directory. Usually the subdirectory should be ${PN}, you can choose
+# something else, but remember to tell elisp-site-file-install() (see below)
+# the change, as it defaults to ${PN}.
+#
+# elisp-install ${PN} *.el *.elc || die "elisp-install failed"
+#
+# To let the Emacs support be activated by Emacs on startup, you need
+# to provide a site file (shipped in ${FILESDIR}) which contains the startup
+# code (have a look in the documentation of your software). Normally this
+# would look like this:
+#
+# ;;; csv-mode site-lisp configuration
+#
+# (add-to-list 'load-path "@SITELISP@")
+# (add-to-list 'auto-mode-alist '("\\.csv\\'" . csv-mode))
+# (autoload 'csv-mode "csv-mode" "Major mode for csv files." t)
+#
+# If your Emacs support files are installed in a subdirectory of
+# /usr/share/emacs/site-lisp/ (which is recommended), you need to extend
+# Emacs' load-path as shown in the first non-comment.
+# The elisp-site-file-install() function of this eclass will replace
+# "@SITELISP@" by the actual path.
+#
+# The next line tells Emacs to load the mode opening a file ending with
+# ".csv" and load functions depending on the context and needed features.
+# Be careful though. Commands as "load-library" or "require" bloat the
+# editor as they are loaded on every startup. When having a lot of Emacs
+# support files, users may be annoyed by the start-up time. Also avoid
+# keybindings as they might interfere with the user's settings. Give a hint
+# in pkg_postinst(), which should be enough.
+#
+# The naming scheme for this site file is "[0-9][0-9]*-gentoo.el", where the
+# two digits at the beginning define the loading order. So if you depend on
+# another Emacs package, your site file's number must be higher!
+#
+# Best practice is to define a SITEFILE variable in the global scope of your
+# ebuild (right after DEPEND e.g.):
+#
+# SITEFILE=50${PN}-gentoo.el
+#
+# Which is then installed by
+#
+# elisp-site-file-install "${FILESDIR}/${SITEFILE}" || die
+#
+# in src_install(). If your subdirectory is not named ${PN}, give the
+# differing name as second argument.
+#
+# .SS
+# pkg_postinst() / pkg_postrm() usage:
+#
+# After that you need to recreate the start-up file of Emacs after emerging
+# and unmerging by using
+#
+# pkg_postinst() {
+# elisp-site-regen
+# }
+#
+# pkg_postrm() {
+# elisp-site-regen
+# }
+#
+# When having optional Emacs support, you should prepend "use emacs &&" to
+# above calls of elisp-site-regen(). Don't use "has_version virtual/emacs"!
+# When unmerging the state of the emacs USE flag is taken from the package
+# database and not from the environment, so it is no problem when you unset
+# USE=emacs between merge and unmerge of a package.
+#
+# .SS
+# Miscellaneous functions:
+#
+# elisp-emacs-version() outputs the version of the currently active Emacs.
+
+# @ECLASS-VARIABLE: SITELISP
+# @DESCRIPTION:
+# Directory where packages install Emacs Lisp files.
+SITELISP=/usr/share/emacs/site-lisp
+
+# Directory where packages install miscellaneous (not Lisp) files.
+SITEETC=/usr/share/emacs/etc
+
+# @ECLASS-VARIABLE: SITEFILE
+# @DESCRIPTION:
+# Name of package's site-init file.
+SITEFILE=50${PN}-gentoo.el
+
+EMACS=/usr/bin/emacs
+# The following works for Emacs versions 18-23, don't change it.
+EMACSFLAGS="-batch -q --no-site-file"
+
+# @FUNCTION: elisp-compile
+# @USAGE: <list of elisp files>
+# @DESCRIPTION:
+# Byte-compile Emacs Lisp files.
+
+elisp-compile() {
+ ebegin "Compiling GNU Emacs Elisp files"
+ ${EMACS} ${EMACSFLAGS} -f batch-byte-compile "$@"
+ eend $? "batch-byte-compile failed"
+}
+
+# @FUNCTION: elisp-comp
+# @USAGE: <list of elisp files>
+# @DESCRIPTION:
+# Byte-compile interdependent Emacs Lisp files.
+#
+# This function byte-compiles all ".el" files which are part of its
+# arguments, using GNU Emacs, and puts the resulting ".elc" files into the
+# current directory, so disregarding the original directories used in ".el"
+# arguments.
+#
+# This function manages in such a way that all Emacs Lisp files to be
+# compiled are made visible between themselves, in the event they require or
+# load one another.
+
+elisp-comp() {
+ # Copyright 1995 Free Software Foundation, Inc.
+ # François Pinard <pinard@iro.umontreal.ca>, 1995.
+ # Originally taken from GNU autotools.
+
+ [ $# -gt 0 ] || return 1
+
+ ebegin "Compiling GNU Emacs Elisp files"
+
+ tempdir=elc.$$
+ mkdir ${tempdir}
+ cp "$@" ${tempdir}
+ pushd ${tempdir}
+
+ echo "(add-to-list 'load-path \"../\")" > script
+ ${EMACS} ${EMACSFLAGS} -l script -f batch-byte-compile *.el
+ local ret=$?
+ mv *.elc ..
+
+ popd
+ rm -fr ${tempdir}
+
+ eend ${ret} "batch-byte-compile failed"
+ return ${ret}
+}
+
+# @FUNCTION: elisp-emacs-version
+# @DESCRIPTION:
+# Output version of currently active Emacs.
+
+elisp-emacs-version() {
+ # The following will work for at least versions 18-23.
+ echo "(princ emacs-version)" >"${T}"/emacs-version.el
+ ${EMACS} ${EMACSFLAGS} -l "${T}"/emacs-version.el
+ rm -f "${T}"/emacs-version.el
+}
+
+# @FUNCTION: elisp-make-autoload-file
+# @USAGE: [output file] [list of directories]
+# @DESCRIPTION:
+# Generate a file with autoload definitions for the lisp functions.
+
+elisp-make-autoload-file() {
+ local f="${1:-${PN}-autoloads.el}"
+ shift
+ ebegin "Generating autoload file for GNU Emacs"
+
+ sed 's/^FF/\f/' >"${f}" <<-EOF
+ ;;; ${f##*/} --- autoloads for ${P}
+
+ ;;; Commentary:
+ ;; Automatically generated by elisp-common.eclass
+ ;; DO NOT EDIT THIS FILE
+
+ ;;; Code:
+ FF
+ ;; Local Variables:
+ ;; version-control: never
+ ;; no-byte-compile: t
+ ;; no-update-autoloads: t
+ ;; End:
+ ;;; ${f##*/} ends here
+ EOF
+
+ ${EMACS} ${EMACSFLAGS} \
+ --eval "(setq make-backup-files nil)" \
+ --eval "(setq generated-autoload-file (expand-file-name \"${f}\"))" \
+ -f batch-update-autoloads "${@-.}"
+
+ eend $? "batch-update-autoloads failed"
+}
+
+# @FUNCTION: elisp-install
+# @USAGE: <subdirectory> <list of files>
+# @DESCRIPTION:
+# Install files in SITELISP directory.
+
+elisp-install() {
+ local subdir="$1"
+ shift
+ ebegin "Installing Elisp files for GNU Emacs support"
+ ( # subshell to avoid pollution of calling environment
+ insinto "${SITELISP}/${subdir}"
+ doins "$@"
+ )
+ eend $? "doins failed"
+}
+
+# @FUNCTION: elisp-site-file-install
+# @USAGE: <site-init file> [subdirectory]
+# @DESCRIPTION:
+# Install Emacs site-init file in SITELISP directory.
+
+elisp-site-file-install() {
+ local sf="${T}/${1##*/}" my_pn="${2:-${PN}}" ret
+ ebegin "Installing site initialisation file for GNU Emacs"
+ cp "$1" "${sf}"
+ sed -i -e "s:@SITELISP@:${SITELISP}/${my_pn}:g" \
+ -e "s:@SITEETC@:${SITEETC}/${my_pn}:g" "${sf}"
+ ( # subshell to avoid pollution of calling environment
+ insinto "${SITELISP}/site-gentoo.d"
+ doins "${sf}"
+ )
+ ret=$?
+ rm -f "${sf}"
+ eend ${ret} "doins failed"
+}
+
+# @FUNCTION: elisp-site-regen
+# @DESCRIPTION:
+# Regenerate site-gentoo.el file. The old location for site initialisation
+# files of packages was /usr/share/emacs/site-lisp/. In December 2007 this
+# has been changed to /usr/share/emacs/site-lisp/site-gentoo.d/. Remerge of
+# packages with Emacs support is enough, the old location is still supported
+# when generating the start-up file.
+
+elisp-site-regen() {
+ local i sf line obsolete
+ local -a sflist
+ # Work around Paludis borkage: variable T is empty in pkg_postrm
+ local tmpdir=${T:-$(mktemp -d)}
+
+ if [ ! -d "${ROOT}${SITELISP}" ]; then
+ eerror "Directory ${SITELISP} does not exist"
+ return 1
+ fi
+
+ if [ ! -e "${ROOT}${SITELISP}"/site-gentoo.el ] \
+ && [ ! -e "${ROOT}${SITELISP}"/site-start.el ]; then
+ einfo "Creating default ${SITELISP}/site-start.el ..."
+ cat <<-EOF >"${tmpdir}"/site-start.el
+ ;;; site-start.el
+
+ ;;; Commentary:
+ ;; This default site startup file is installed by elisp-common.eclass.
+ ;; You may replace this file by your own site initialisation, or even
+ ;; remove it completely; it will not be recreated.
+
+ ;;; Code:
+ ;; Load site initialisation for Gentoo-installed packages.
+ (require 'site-gentoo)
+
+ ;;; site-start.el ends here
+ EOF
+ fi
+
+ einfon "Regenerating ${SITELISP}/site-gentoo.el ..."
+
+ # remove any auxiliary file (from previous run)
+ rm -f "${ROOT}${SITELISP}"/00site-gentoo.el
+
+ # set nullglob option, there may be a directory without matching files
+ local old_shopts=$(shopt -p nullglob)
+ shopt -s nullglob
+
+ for sf in "${ROOT}${SITELISP}"/[0-9][0-9]*-gentoo.el \
+ "${ROOT}${SITELISP}"/site-gentoo.d/[0-9][0-9]*.el
+ do
+ [ -r "${sf}" ] || continue
+ # sort files by their basename. straight insertion sort.
+ for ((i=${#sflist[@]}; i>0; i--)); do
+ [[ ${sf##*/} < ${sflist[i-1]##*/} ]] || break
+ sflist[i]=${sflist[i-1]}
+ done
+ sflist[i]=${sf}
+ # set a flag if there are obsolete files
+ [ "${sf%/*}" = "${ROOT}${SITELISP}" ] && obsolete=t
+ done
+
+ eval "${old_shopts}"
+
+ cat <<-EOF >"${tmpdir}"/site-gentoo.el
+ ;;; site-gentoo.el --- site initialisation for Gentoo-installed packages
+
+ ;;; Commentary:
+ ;; Automatically generated by elisp-common.eclass
+ ;; DO NOT EDIT THIS FILE
+
+ ;;; Code:
+ EOF
+ cat "${sflist[@]}" </dev/null >>"${tmpdir}"/site-gentoo.el
+ cat <<-EOF >>"${tmpdir}"/site-gentoo.el
+
+ (provide 'site-gentoo)
+
+ ;; Local Variables:
+ ;; no-byte-compile: t
+ ;; End:
+ ;;; site-gentoo.el ends here
+ EOF
+
+ if cmp -s "${ROOT}${SITELISP}"/site-gentoo.el "${tmpdir}"/site-gentoo.el
+ then
+ # This prevents outputting unnecessary text when there
+ # was actually no change.
+ # A case is a remerge where we have doubled output.
+ echo " no changes."
+ else
+ mv "${tmpdir}"/site-gentoo.el "${ROOT}${SITELISP}"/site-gentoo.el
+ [ -f "${tmpdir}"/site-start.el ] \
+ && [ ! -e "${ROOT}${SITELISP}"/site-start.el ] \
+ && mv "${tmpdir}"/site-start.el "${ROOT}${SITELISP}"/site-start.el
+ echo; einfo
+ for sf in "${sflist[@]##*/}"; do
+ einfo " Adding ${sf} ..."
+ done
+ einfo "Regenerated ${SITELISP}/site-gentoo.el."
+
+ echo
+ while read line; do einfo "${line:- }"; done <<-EOF
+ All site initialisation for Gentoo-installed packages is added to
+ /usr/share/emacs/site-lisp/site-gentoo.el; site-start.el is not
+ managed by Gentoo. You are responsible for all maintenance of
+ site-start.el if there is such a file.
+
+ In order for this site initialisation to be loaded for all users
+ automatically, you can add a line like this:
+
+ (require 'site-gentoo)
+
+ to /usr/share/emacs/site-lisp/site-start.el. Alternatively, that line
+ can be added by individual users to their initialisation files, or,
+ for greater flexibility, users can load individual package-specific
+ initialisation files from /usr/share/emacs/site-lisp/site-gentoo.d/.
+ EOF
+ echo
+ fi
+
+ if [ "${obsolete}" ]; then
+ while read line; do ewarn "${line}"; done <<-EOF
+ Site-initialisation files of Emacs packages are now installed in
+ /usr/share/emacs/site-lisp/site-gentoo.d/. We strongly recommend
+ that you use /usr/sbin/emacs-updater to rebuild the installed
+ Emacs packages.
+ EOF
+ echo
+
+ # Kludge for backwards compatibility: During pkg_postrm, old versions
+ # of this eclass (saved in the VDB) won't find packages' site-init
+ # files in the new location. So we copy them to an auxiliary file
+ # that is visible to old eclass versions.
+ for sf in "${sflist[@]}"; do
+ [ "${sf%/*}" = "${ROOT}${SITELISP}/site-gentoo.d" ] \
+ && cat "${sf}" >>"${ROOT}${SITELISP}"/00site-gentoo.el
+ done
+ fi
+
+ # cleanup
+ rm -f "${tmpdir}"/site-{gentoo,start}.el
+}