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1# Copyright 1999-2007 Gentoo Foundation 1# Copyright 1999-2008 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 1.33 2007/12/12 21:58:57 ulm Exp $ 3# $Header: /var/cvsroot/gentoo-x86/eclass/elisp-common.eclass,v 1.48 2008/10/05 13:56:08 ulm Exp $
4# 4#
5# Copyright 2007 Christian Faulhammer <opfer@gentoo.org>
6# 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>
7# Copyright 2004-2005 Mamoru Komachi <usata@gentoo.org> 7# Copyright 2004-2005 Mamoru Komachi <usata@gentoo.org>
8# Copyright 2003 Jeremy Maitin-Shepard <jbms@attbi.com> 8# Copyright 2007-2008 Christian Faulhammer <opfer@gentoo.org>
9# Copyright 2007 Ulrich Mueller <ulm@gentoo.org> 9# Copyright 2007-2008 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 have 13# Feel free to contact the Emacs team through <emacs@gentoo.org> if you have
14# problems, suggestions or questions. 14# problems, suggestions or questions.
… …
31# 31#
32# .SS 32# .SS
33# src_compile() usage: 33# src_compile() usage:
34# 34#
35# An elisp file is compiled by the elisp-compile() function defined here and 35# An elisp file is compiled by the elisp-compile() function defined here and
36# simply takes the source files as arguments. 36# simply takes the source files as arguments. The case of interdependent
37# elisp files is also supported, since the current directory is added to the
38# load-path which makes sure that all files are loadable.
37# 39#
38# elisp-compile *.el || die "elisp-compile failed" 40# elisp-compile *.el || die "elisp-compile failed"
39# 41#
40# In the case of interdependent elisp files, you can use the elisp-comp() 42# Formerly, function elisp-comp() was used for compilation of interdependent
41# function which makes sure all files are loadable. 43# elisp files. This usage is considered as obsolete.
42#
43# elisp-comp *.el || die "elisp-comp failed"
44# 44#
45# Function elisp-make-autoload-file() can be used to generate a file with 45# Function elisp-make-autoload-file() can be used to generate a file with
46# autoload definitions for the lisp functions. It takes the output file name 46# autoload definitions for the lisp functions. It takes the output file name
47# (default: "${PN}-autoloads.el") and a list of directories (default: working 47# (default: "${PN}-autoloads.el") and a list of directories (default: working
48# directory) as its arguments. Use of this function requires that the elisp 48# directory) as its arguments. Use of this function requires that the elisp
49# source files contain magic ";;;###autoload" comments. See the Emacs Lisp 49# source files contain magic ";;;###autoload" comments. See the Emacs Lisp
50# Reference Manual (node "Autoload") for a detailed explanation. 50# Reference Manual (node "Autoload") for a detailed explanation.
51# 51#
52# .SS 52# .SS
53# src_install() usage: 53# src_install() usage:
54# 54#
… …
130# @ECLASS-VARIABLE: SITELISP 130# @ECLASS-VARIABLE: SITELISP
131# @DESCRIPTION: 131# @DESCRIPTION:
132# Directory where packages install Emacs Lisp files. 132# Directory where packages install Emacs Lisp files.
133SITELISP=/usr/share/emacs/site-lisp 133SITELISP=/usr/share/emacs/site-lisp
134 134
135# @ECLASS-VARIABLE: SITEETC
136# @DESCRIPTION:
135# Directory where packages install miscellaneous (not Lisp) files. 137# Directory where packages install miscellaneous (not Lisp) files.
136SITEETC=/usr/share/emacs/etc 138SITEETC=/usr/share/emacs/etc
137 139
138# @ECLASS-VARIABLE: SITEFILE 140# @ECLASS-VARIABLE: SITEFILE
139# @DESCRIPTION: 141# @DESCRIPTION:
140# Name of package's site-init file. 142# Name of package's site-init file.
141SITEFILE=50${PN}-gentoo.el 143SITEFILE=50${PN}-gentoo.el
142 144
145# @ECLASS-VARIABLE: EMACS
146# @DESCRIPTION:
147# Path of Emacs executable.
143EMACS=/usr/bin/emacs 148EMACS=/usr/bin/emacs
149
150# @ECLASS-VARIABLE: EMACSFLAGS
151# @DESCRIPTION:
152# Flags for executing Emacs in batch mode.
144# The following works for Emacs versions 18--23, don't change it. 153# These work for Emacs versions 18-23, so don't change them.
145EMACSFLAGS="-batch -q --no-site-file" 154EMACSFLAGS="-batch -q --no-site-file"
155
156# @ECLASS-VARIABLE: BYTECOMPFLAGS
157# @DESCRIPTION:
158# Emacs flags used for byte-compilation in elisp-compile().
159BYTECOMPFLAGS="-L ."
146 160
147# @FUNCTION: elisp-compile 161# @FUNCTION: elisp-compile
148# @USAGE: <list of elisp files> 162# @USAGE: <list of elisp files>
149# @DESCRIPTION: 163# @DESCRIPTION:
150# Byte-compile Emacs Lisp files. 164# Byte-compile Emacs Lisp files.
165#
166# This function uses GNU Emacs to byte-compile all ".el" specified by its
167# arguments. The resulting byte-code (".elc") files are placed in the same
168# directory as their corresponding source file.
169#
170# The current directory is added to the load-path. This will ensure that
171# interdependent Emacs Lisp files are visible between themselves, in case
172# they require or load one another.
151 173
152elisp-compile() { 174elisp-compile() {
153 ebegin "Compiling GNU Emacs Elisp files" 175 ebegin "Compiling GNU Emacs Elisp files"
154 ${EMACS} ${EMACSFLAGS} -f batch-byte-compile "$@" 176 ${EMACS} ${EMACSFLAGS} ${BYTECOMPFLAGS} -f batch-byte-compile "$@"
155 eend $? "batch-byte-compile failed" 177 eend $? "batch-byte-compile failed"
156} 178}
157 179
158# @FUNCTION: elisp-comp 180# #FUNCTION: elisp-comp
159# @USAGE: <list of elisp files> 181# #USAGE: <list of elisp files>
160# @DESCRIPTION: 182# #DESCRIPTION:
161# Byte-compile interdependent Emacs Lisp files. 183# Byte-compile interdependent Emacs Lisp files.
184# THIS FUNCTION IS DEPRECATED.
162# 185#
163# This function byte-compiles all ".el" files which are part of its 186# This function byte-compiles all ".el" files which are part of its
164# arguments, using GNU Emacs, and puts the resulting ".elc" files into the 187# arguments, using GNU Emacs, and puts the resulting ".elc" files into the
165# current directory, so disregarding the original directories used in ".el" 188# current directory, so disregarding the original directories used in ".el"
166# arguments. 189# arguments.
… …
172elisp-comp() { 195elisp-comp() {
173 # Copyright 1995 Free Software Foundation, Inc. 196 # Copyright 1995 Free Software Foundation, Inc.
174 # François Pinard <pinard@iro.umontreal.ca>, 1995. 197 # François Pinard <pinard@iro.umontreal.ca>, 1995.
175 # Originally taken from GNU autotools. 198 # Originally taken from GNU autotools.
176 199
200 ewarn "Function elisp-comp is deprecated and may be removed in future."
201 ewarn "Please use function elisp-compile instead, or report a bug about"
202 ewarn "${CATEGORY}/${PF} at <http://bugs.gentoo.org/>."
203 echo
204
177 [ $# -gt 0 ] || return 1 205 [ $# -gt 0 ] || return 1
178 206
179 ebegin "Compiling GNU Emacs Elisp files" 207 ebegin "Compiling GNU Emacs Elisp files"
180 208
181 tempdir=elc.$$ 209 local tempdir=elc.$$
182 mkdir ${tempdir} 210 mkdir ${tempdir}
183 cp "$@" ${tempdir} 211 cp "$@" ${tempdir}
184 pushd ${tempdir} 212 pushd ${tempdir}
185 213
186 echo "(add-to-list 'load-path \"../\")" > script 214 echo "(add-to-list 'load-path \"../\")" > script
… …
201 229
202elisp-emacs-version() { 230elisp-emacs-version() {
203 # The following will work for at least versions 18-23. 231 # The following will work for at least versions 18-23.
204 echo "(princ emacs-version)" >"${T}"/emacs-version.el 232 echo "(princ emacs-version)" >"${T}"/emacs-version.el
205 ${EMACS} ${EMACSFLAGS} -l "${T}"/emacs-version.el 233 ${EMACS} ${EMACSFLAGS} -l "${T}"/emacs-version.el
234 rm -f "${T}"/emacs-version.el
206} 235}
207 236
208# @FUNCTION: elisp-make-autoload-file 237# @FUNCTION: elisp-make-autoload-file
209# @USAGE: [output file] [list of directories] 238# @USAGE: [output file] [list of directories]
210# @DESCRIPTION: 239# @DESCRIPTION:
… …
260# @USAGE: <site-init file> [subdirectory] 289# @USAGE: <site-init file> [subdirectory]
261# @DESCRIPTION: 290# @DESCRIPTION:
262# Install Emacs site-init file in SITELISP directory. 291# Install Emacs site-init file in SITELISP directory.
263 292
264elisp-site-file-install() { 293elisp-site-file-install() {
265 local sf="$1" my_pn="${2:-${PN}}" 294 local sf="${T}/${1##*/}" my_pn="${2:-${PN}}" ret
266 ebegin "Installing site initialisation file for GNU Emacs" 295 ebegin "Installing site initialisation file for GNU Emacs"
267 cp "${sf}" "${T}" 296 cp "$1" "${sf}"
268 sed -i -e "s:@SITELISP@:${SITELISP}/${my_pn}:g" \ 297 sed -i -e "s:@SITELISP@:${SITELISP}/${my_pn}:g" \
269 -e "s:@SITEETC@:${SITEETC}/${my_pn}:g" "${T}/${sf##*/}" 298 -e "s:@SITEETC@:${SITEETC}/${my_pn}:g" "${sf}"
270 ( # subshell to avoid pollution of calling environment 299 ( # subshell to avoid pollution of calling environment
271 insinto "${SITELISP}" 300 insinto "${SITELISP}/site-gentoo.d"
272 doins "${T}/${sf##*/}" 301 doins "${sf}"
273 ) 302 )
303 ret=$?
304 rm -f "${sf}"
274 eend $? "doins failed" 305 eend ${ret} "doins failed"
275} 306}
276 307
277# @FUNCTION: elisp-site-regen 308# @FUNCTION: elisp-site-regen
278# @DESCRIPTION: 309# @DESCRIPTION:
279# Regenerate site-gentoo.el file. 310# Regenerate the site-gentoo.el file, based on packages' site initialisation
280
281# Old location for site initialisation files of packages was
282# /usr/share/emacs/site-lisp/. It is planned to change this to
283# /usr/share/emacs/site-lisp/site-gentoo.d/. 311# files in the /usr/share/emacs/site-lisp/site-gentoo.d/ directory.
312#
313# Note: Before December 2007, site initialisation files were installed in
314# /usr/share/emacs/site-lisp/. For backwards compatibility, this location is
315# still supported when generating site-gentoo.el.
284 316
285elisp-site-regen() { 317elisp-site-regen() {
286 local i sf line 318 local i sf line firstrun obsolete
287 local -a sflist 319 local -a sflist
320 # Work around Paludis borkage: variable T is empty in pkg_postrm
321 local tmpdir=${T:-$(mktemp -d)}
288 322
323 if [ ! -d "${ROOT}${SITELISP}" ]; then
324 eerror "Directory ${SITELISP} does not exist"
325 return 1
326 fi
327
289 if [ ! -e "${ROOT}${SITELISP}"/site-gentoo.el ] \ 328 [ -e "${ROOT}${SITELISP}"/site-gentoo.el ] || firstrun=t
329
290 && [ ! -e "${ROOT}${SITELISP}"/site-start.el ]; then 330 if [ "${firstrun}" ] && [ ! -e "${ROOT}${SITELISP}"/site-start.el ]; then
291 einfo "Creating default ${SITELISP}/site-start.el ..." 331 einfo "Creating default ${SITELISP}/site-start.el ..."
292 cat <<-EOF >"${T}"/site-start.el 332 cat <<-EOF >"${tmpdir}"/site-start.el
293 ;;; site-start.el 333 ;;; site-start.el
294 334
295 ;;; Commentary: 335 ;;; Commentary:
296 ;; This default site startup file is installed by elisp-common.eclass. 336 ;; This default site startup file is installed by elisp-common.eclass.
297 ;; You may replace this file by your own site initialisation, or even 337 ;; You may replace this file by your own site initialisation, or even
… …
305 EOF 345 EOF
306 fi 346 fi
307 347
308 einfon "Regenerating ${SITELISP}/site-gentoo.el ..." 348 einfon "Regenerating ${SITELISP}/site-gentoo.el ..."
309 349
310 # remove auxiliary file 350 # remove any auxiliary file (from previous run)
311 rm -f "${ROOT}${SITELISP}"/00site-gentoo.el 351 rm -f "${ROOT}${SITELISP}"/00site-gentoo.el
312 352
313 # set nullglob option, there may be a directory without matching files 353 # set nullglob option, there may be a directory without matching files
314 local old_shopts=$(shopt -p nullglob) 354 local old_shopts=$(shopt -p nullglob)
315 shopt -s nullglob 355 shopt -s nullglob
… …
322 for ((i=${#sflist[@]}; i>0; i--)); do 362 for ((i=${#sflist[@]}; i>0; i--)); do
323 [[ ${sf##*/} < ${sflist[i-1]##*/} ]] || break 363 [[ ${sf##*/} < ${sflist[i-1]##*/} ]] || break
324 sflist[i]=${sflist[i-1]} 364 sflist[i]=${sflist[i-1]}
325 done 365 done
326 sflist[i]=${sf} 366 sflist[i]=${sf}
367 # set a flag if there are obsolete files
368 [ "${sf%/*}" = "${ROOT}${SITELISP}" ] && obsolete=t
327 done 369 done
328 370
329 eval "${old_shopts}" 371 eval "${old_shopts}"
330 372
331 cat <<-EOF >"${T}"/site-gentoo.el 373 cat <<-EOF >"${tmpdir}"/site-gentoo.el
332 ;;; site-gentoo.el --- site initialisation for Gentoo-installed packages 374 ;;; site-gentoo.el --- site initialisation for Gentoo-installed packages
333 375
334 ;;; Commentary: 376 ;;; Commentary:
335 ;; Automatically generated by elisp-common.eclass 377 ;; Automatically generated by elisp-common.eclass
336 ;; DO NOT EDIT THIS FILE 378 ;; DO NOT EDIT THIS FILE
337 379
338 ;;; Code: 380 ;;; Code:
339 EOF 381 EOF
340 cat "${sflist[@]}" </dev/null >>"${T}"/site-gentoo.el 382 cat "${sflist[@]}" </dev/null >>"${tmpdir}"/site-gentoo.el
341 cat <<-EOF >>"${T}"/site-gentoo.el 383 cat <<-EOF >>"${tmpdir}"/site-gentoo.el
342 384
343 (provide 'site-gentoo) 385 (provide 'site-gentoo)
344 386
345 ;; Local Variables: 387 ;; Local Variables:
346 ;; no-byte-compile: t 388 ;; no-byte-compile: t
347 ;; End: 389 ;; End:
348 ;;; site-gentoo.el ends here 390 ;;; site-gentoo.el ends here
349 EOF 391 EOF
350 392
351 if cmp -s "${ROOT}${SITELISP}"/site-gentoo.el "${T}"/site-gentoo.el; then 393 if cmp -s "${ROOT}${SITELISP}"/site-gentoo.el "${tmpdir}"/site-gentoo.el
394 then
352 # This prevents outputting unnecessary text when there 395 # This prevents outputting unnecessary text when there
353 # was actually no change. 396 # was actually no change.
354 # A case is a remerge where we have doubled output. 397 # A case is a remerge where we have doubled output.
355 echo " no changes." 398 echo " no changes."
356 else 399 else
357 mv "${T}"/site-gentoo.el "${ROOT}${SITELISP}"/site-gentoo.el 400 mv "${tmpdir}"/site-gentoo.el "${ROOT}${SITELISP}"/site-gentoo.el
358 [ -f "${T}"/site-start.el ] \ 401 [ -f "${tmpdir}"/site-start.el ] \
359 && [ ! -e "${ROOT}${SITELISP}"/site-start.el ] \ 402 && [ ! -e "${ROOT}${SITELISP}"/site-start.el ] \
360 && mv "${T}"/site-start.el "${ROOT}${SITELISP}"/site-start.el 403 && mv "${tmpdir}"/site-start.el "${ROOT}${SITELISP}"/site-start.el
361 echo; einfo
362 for sf in "${sflist[@]##*/}"; do
363 einfo " Adding ${sf} ..."
364 done
365 einfo "Regenerated ${SITELISP}/site-gentoo.el."
366
367 echo 404 echo
405 einfo "... ${#sflist[@]} site initialisation file(s) included."
406 fi
407
408 if [ "${firstrun}" ]; then
409 echo
368 while read line; do einfo "${line}"; done <<EOF 410 while read line; do einfo "${line:- }"; done <<-EOF
369All site initialisation for Gentoo-installed packages is added to 411 All site initialisation for Gentoo-installed packages is added to
370/usr/share/emacs/site-lisp/site-gentoo.el; site-start.el is no longer 412 /usr/share/emacs/site-lisp/site-gentoo.el; site-start.el is not
371managed by Gentoo. You are responsible for all maintenance of 413 managed by Gentoo. You are responsible for all maintenance of
372site-start.el if there is such a file. 414 site-start.el if there is such a file.
373 415
374In order for this site initialisation to be loaded for all users 416 In order for this site initialisation to be loaded for all users
375automatically, you can add a line like this: 417 automatically, you can add a line like this:
376 418
377 (require 'site-gentoo) 419 (require 'site-gentoo)
378 420
379to /usr/share/emacs/site-lisp/site-start.el. Alternatively, that line 421 to /usr/share/emacs/site-lisp/site-start.el. Alternatively, that line
380can be added by individual users to their initialisation files, or, 422 can be added by individual users to their initialisation files, or,
381for greater flexibility, users can load individual package-specific 423 for greater flexibility, users can load individual package-specific
382initialisation files from /usr/share/emacs/site-lisp/. 424 initialisation files from /usr/share/emacs/site-lisp/site-gentoo.d/.
383EOF 425 EOF
384 echo 426 echo
385 fi 427 fi
386 428
429 if [ "${obsolete}" ]; then
430 echo
431 while read line; do ewarn "${line}"; done <<-EOF
432 Site-initialisation files of Emacs packages are now installed in
433 /usr/share/emacs/site-lisp/site-gentoo.d/. We strongly recommend
434 that you use app-admin/emacs-updater to rebuild the installed
435 Emacs packages.
436 EOF
437
387 # Kludge for backwards compatibility: During pkg_postrm, old versions 438 # Kludge for backwards compatibility: During pkg_postrm, old versions
388 # of this eclass (saved in the PDB) won't find packages' site-init files 439 # of this eclass (saved in the VDB) won't find packages' site-init
389 # in the new location. So we copy them to an auxiliary file that is 440 # files in the new location. So we copy them to an auxiliary file
390 # visible to old eclass versions. 441 # that is visible to old eclass versions.
391 for sf in "${sflist[@]}"; do 442 for sf in "${sflist[@]}"; do
392 [ "${sf%/*}" = "${ROOT}${SITELISP}/site-gentoo.d" ] \ 443 [ "${sf%/*}" = "${ROOT}${SITELISP}/site-gentoo.d" ] \
393 && cat "${sf}" >>"${ROOT}${SITELISP}"/00site-gentoo.el 444 && cat "${sf}" >>"${ROOT}${SITELISP}"/00site-gentoo.el
394 done 445 done
446 fi
447
448 # cleanup
449 rm -f "${tmpdir}"/site-{gentoo,start}.el
450
451 return 0
395} 452}
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