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1# Copyright 1999-2010 Gentoo Foundation 1# Copyright 1999-2011 Gentoo Foundation
2# Distributed under the terms of the GNU General Public License v2 2# Distributed under the terms of the GNU General Public License v2
3# $Header: /var/cvsroot/gentoo-x86/eclass/elisp-common.eclass,v 1.68 2010/10/09 15:30:43 ulm Exp $ 3# $Header: /var/cvsroot/gentoo-x86/eclass/elisp-common.eclass,v 1.71 2011/02/19 10:12:42 ulm Exp $
4# 4#
5# Copyright 2002-2004 Matthew Kennedy <mkennedy@gentoo.org> 5# Copyright 2002-2004 Matthew Kennedy <mkennedy@gentoo.org>
6# Copyright 2003 Jeremy Maitin-Shepard <jbms@attbi.com> 6# Copyright 2003 Jeremy Maitin-Shepard <jbms@attbi.com>
7# Copyright 2004-2005 Mamoru Komachi <usata@gentoo.org> 7# Copyright 2004-2005 Mamoru Komachi <usata@gentoo.org>
8# Copyright 2007-2008 Christian Faulhammer <fauli@gentoo.org> 8# Copyright 2007-2008 Christian Faulhammer <fauli@gentoo.org>
9# Copyright 2007-2010 Ulrich Müller <ulm@gentoo.org> 9# Copyright 2007-2011 Ulrich Müller <ulm@gentoo.org>
10# 10#
11# @ECLASS: elisp-common.eclass 11# @ECLASS: elisp-common.eclass
12# @MAINTAINER: 12# @MAINTAINER:
13# Feel free to contact the Emacs team through <emacs@gentoo.org> if you 13# Feel free to contact the Emacs team through <emacs@gentoo.org> if you
14# have problems, suggestions or questions. 14# have problems, suggestions or questions.
26# 26#
27# emacs? ( virtual/emacs ) 27# emacs? ( virtual/emacs )
28# 28#
29# to your DEPEND/RDEPEND line and use the functions provided here to 29# to your DEPEND/RDEPEND line and use the functions provided here to
30# bring the files to the correct locations. 30# bring the files to the correct locations.
31#
32# If your package requires a minimum Emacs version, e.g. Emacs 23, then
33# the dependency should be on >=virtual/emacs-23 instead. Because the
34# user can select the Emacs executable with eselect, you should also
35# make sure that the active Emacs version is sufficient. This can be
36# tested with function elisp-need-emacs(), which would typically be
37# called from pkg_setup(), as in the following example:
38#
39# elisp-need-emacs 23 || die "Emacs version too low"
40#
41# Please note that such tests should be limited to packages that are
42# known to fail with lower Emacs versions; the standard case is to
43# depend on virtual/emacs without version.
31# 44#
32# .SS 45# .SS
33# src_compile() usage: 46# src_compile() usage:
34# 47#
35# An elisp file is compiled by the elisp-compile() function defined 48# An elisp file is compiled by the elisp-compile() function defined
124# to above calls of elisp-site-regen(). 137# to above calls of elisp-site-regen().
125# Don't use "has_version virtual/emacs"! When unmerging the state of 138# Don't use "has_version virtual/emacs"! When unmerging the state of
126# the emacs USE flag is taken from the package database and not from the 139# the emacs USE flag is taken from the package database and not from the
127# environment, so it is no problem when you unset USE=emacs between 140# environment, so it is no problem when you unset USE=emacs between
128# merge and unmerge of a package. 141# merge and unmerge of a package.
129#
130# .SS
131# Miscellaneous functions:
132#
133# elisp-emacs-version() outputs the version of the currently active Emacs.
134 142
135# @ECLASS-VARIABLE: SITELISP 143# @ECLASS-VARIABLE: SITELISP
136# @DESCRIPTION: 144# @DESCRIPTION:
137# Directory where packages install Emacs Lisp files. 145# Directory where packages install Emacs Lisp files.
138SITELISP=/usr/share/emacs/site-lisp 146SITELISP=/usr/share/emacs/site-lisp
155 163
156# @ECLASS-VARIABLE: BYTECOMPFLAGS 164# @ECLASS-VARIABLE: BYTECOMPFLAGS
157# @DESCRIPTION: 165# @DESCRIPTION:
158# Emacs flags used for byte-compilation in elisp-compile(). 166# Emacs flags used for byte-compilation in elisp-compile().
159BYTECOMPFLAGS="-L ." 167BYTECOMPFLAGS="-L ."
160
161# @FUNCTION: elisp-compile
162# @USAGE: <list of elisp files>
163# @DESCRIPTION:
164# Byte-compile Emacs Lisp files.
165#
166# This function uses GNU Emacs to byte-compile all ".el" specified by
167# its arguments. The resulting byte-code (".elc") files are placed in
168# the same directory as their corresponding source file.
169#
170# The current directory is added to the load-path. This will ensure
171# that interdependent Emacs Lisp files are visible between themselves,
172# in case they require or load one another.
173
174elisp-compile() {
175 ebegin "Compiling GNU Emacs Elisp files"
176 ${EMACS} ${EMACSFLAGS} ${BYTECOMPFLAGS} -f batch-byte-compile "$@"
177 eend $? "elisp-compile: batch-byte-compile failed"
178}
179
180elisp-comp() {
181 die "Function elisp-comp is not supported any more, see bug 235442"
182}
183 168
184# @FUNCTION: elisp-emacs-version 169# @FUNCTION: elisp-emacs-version
185# @DESCRIPTION: 170# @DESCRIPTION:
186# Output version of currently active Emacs. 171# Output version of currently active Emacs.
187 172
188elisp-emacs-version() { 173elisp-emacs-version() {
189 # The following will work for at least versions 18-23. 174 # The following will work for at least versions 18-23.
190 echo "(princ emacs-version)" >"${T}"/emacs-version.el 175 echo "(princ emacs-version)" >"${T}"/emacs-version.el
191 ${EMACS} ${EMACSFLAGS} -l "${T}"/emacs-version.el 176 ${EMACS} ${EMACSFLAGS} -l "${T}"/emacs-version.el
192 rm -f "${T}"/emacs-version.el 177 rm -f "${T}"/emacs-version.el
178}
179
180# @FUNCTION: elisp-need-emacs
181# @USAGE: <version>
182# @RETURN: 0 if true, 1 otherwise
183# @DESCRIPTION:
184# Test if the eselected Emacs version is at least the major version
185# specified as argument.
186
187elisp-need-emacs() {
188 local need_emacs=$1
189 local have_emacs=$(elisp-emacs-version)
190 einfo "Emacs version: ${have_emacs}"
191 if ! [[ ${have_emacs%%.*} -ge ${need_emacs%%.*} ]]; then
192 eerror "This package needs at least Emacs ${need_emacs%%.*}."
193 eerror "Use \"eselect emacs\" to select the active version."
194 return 1
195 fi
196 return 0
197}
198
199# @FUNCTION: elisp-compile
200# @USAGE: <list of elisp files>
201# @DESCRIPTION:
202# Byte-compile Emacs Lisp files.
203#
204# This function uses GNU Emacs to byte-compile all ".el" specified by
205# its arguments. The resulting byte-code (".elc") files are placed in
206# the same directory as their corresponding source file.
207#
208# The current directory is added to the load-path. This will ensure
209# that interdependent Emacs Lisp files are visible between themselves,
210# in case they require or load one another.
211
212elisp-compile() {
213 ebegin "Compiling GNU Emacs Elisp files"
214 ${EMACS} ${EMACSFLAGS} ${BYTECOMPFLAGS} -f batch-byte-compile "$@"
215 eend $? "elisp-compile: batch-byte-compile failed"
193} 216}
194 217
195# @FUNCTION: elisp-make-autoload-file 218# @FUNCTION: elisp-make-autoload-file
196# @USAGE: [output file] [list of directories] 219# @USAGE: [output file] [list of directories]
197# @DESCRIPTION: 220# @DESCRIPTION:
259 282
260 [[ ${sf} == [0-9][0-9]*-gentoo*.el ]] \ 283 [[ ${sf} == [0-9][0-9]*-gentoo*.el ]] \
261 || ewarn "elisp-site-file-install: bad name of site-init file" 284 || ewarn "elisp-site-file-install: bad name of site-init file"
262 sf="${T}/${sf/%-gentoo*.el/-gentoo.el}" 285 sf="${T}/${sf/%-gentoo*.el/-gentoo.el}"
263 ebegin "Installing site initialisation file for GNU Emacs" 286 ebegin "Installing site initialisation file for GNU Emacs"
264 [[ $1 = ${sf} ]] || cp "$1" "${sf}" 287 [[ $1 = "${sf}" ]] || cp "$1" "${sf}"
265 sed -i -e "1{:x;/^\$/{n;bx;};/^;.*${PN}/I!s:^:${header}\n\n:;1s:^:\n:;}" \ 288 sed -i -e "1{:x;/^\$/{n;bx;};/^;.*${PN}/I!s:^:${header}\n\n:;1s:^:\n:;}" \
266 -e "s:@SITELISP@:${EPREFIX}${SITELISP}/${my_pn}:g" \ 289 -e "s:@SITELISP@:${EPREFIX}${SITELISP}/${my_pn}:g" \
267 -e "s:@SITEETC@:${EPREFIX}${SITEETC}/${my_pn}:g;\$q" "${sf}" 290 -e "s:@SITEETC@:${EPREFIX}${SITEETC}/${my_pn}:g;\$q" "${sf}"
268 ( # subshell to avoid pollution of calling environment 291 ( # subshell to avoid pollution of calling environment
269 insinto "${SITELISP}/site-gentoo.d" 292 insinto "${SITELISP}/site-gentoo.d"
328 EOF 351 EOF
329 # Use sed instead of cat here, since files may miss a trailing newline. 352 # Use sed instead of cat here, since files may miss a trailing newline.
330 sed '$q' "${sflist[@]}" </dev/null >>"${T}"/site-gentoo.el 353 sed '$q' "${sflist[@]}" </dev/null >>"${T}"/site-gentoo.el
331 cat <<-EOF >>"${T}"/site-gentoo.el 354 cat <<-EOF >>"${T}"/site-gentoo.el
332 355
356 ${page}
333 (provide 'site-gentoo) 357 (provide 'site-gentoo)
334 358
335 ${page}
336 ;; Local ${null}Variables: 359 ;; Local ${null}Variables:
337 ;; no-byte-compile: t 360 ;; no-byte-compile: t
338 ;; buffer-read-only: t 361 ;; buffer-read-only: t
339 ;; End: 362 ;; End:
340 363

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