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Revision 1.37 - (show annotations) (download)
Sun Nov 20 12:26:22 2005 UTC (8 years, 9 months ago) by stuart
Branch: MAIN
Changes since 1.36: +132 -156 lines
Adds support for python version of webapp-config

1 # Copyright 1999-2005 Gentoo Foundation
2 # Distributed under the terms of the GNU General Public License v2
3 # $Header: /var/cvsroot/gentoo-x86/eclass/webapp.eclass,v 1.30 2005/05/10 22:55:17 beu Exp $
4 #
5 # eclass/webapp.eclass
6 # Eclass for installing applications to run under a web server
7 #
8 # Part of the implementation of GLEP #11
9 #
10 # Author(s) Stuart Herbert <stuart@gentoo.org>
11 # Renat Lumpau <rl03@gentoo.org>
12 # Gunnar Wrobel <php@gunnarwrobel.org>
13 #
14 # ------------------------------------------------------------------------
15 #
16 # The master copy of this eclass is held in our subversion repository.
17 # http://svn.gnqs.org/projects/vhost-tools/browser/
18 #
19 # If you make changes to this file and don't tell us, chances are that
20 # your changes will be overwritten the next time we release a new version
21 # of webapp-config.
22 #
23 # ------------------------------------------------------------------------
24
25 SLOT="${PVR}"
26 IUSE="vhosts"
27 DEPEND="app-admin/webapp-config"
28 RDEPEND="${DEPEND}"
29
30 EXPORT_FUNCTIONS pkg_postinst pkg_setup src_install pkg_prerm
31
32 INSTALL_DIR="/${PN}"
33 IS_UPGRADE=0
34 IS_REPLACE=0
35
36 INSTALL_CHECK_FILE="installed_by_webapp_eclass"
37
38 ETC_CONFIG="${ROOT}/etc/vhosts/webapp-config"
39 WEBAPP_CONFIG="${ROOT}/usr/sbin/webapp-config"
40
41 # ------------------------------------------------------------------------
42 # INTERNAL FUNCTION - USED BY THIS ECLASS ONLY
43 #
44 # Load the config file /etc/vhosts/webapp-config
45 #
46 # Supports both the old bash version, and the new python version
47 #
48 # ------------------------------------------------------------------------
49
50 function webapp_read_config ()
51 {
52 if has_version '>=app-admin/webapp-config-1.50'; then
53 ENVVAR=$(${WEBAPP_CONFIG} --query ${PN} ${PVR}) || die "Could not read settings from webapp-config!"
54 eval ${ENVVAR}
55 else
56 . ${ETC_CONFIG} || die "Unable to read ${ETC_CONFIG}"
57 fi
58 }
59
60 # ------------------------------------------------------------------------
61 # INTERNAL FUNCTION - USED BY THIS ECLASS ONLY
62 #
63 # Check whether a specified file exists within the image/ directory
64 # or not.
65 #
66 # @param $1 - file to look for
67 # @param $2 - prefix directory to use
68 # @return 0 on success, never returns on an error
69 # ------------------------------------------------------------------------
70
71 function webapp_checkfileexists ()
72 {
73 local my_prefix
74
75 [ -n "${2}" ] && my_prefix="${2}/" || my_prefix=
76
77 if [ ! -e "${my_prefix}${1}" ]; then
78 msg="ebuild fault: file '${1}' not found"
79 eerror "$msg"
80 eerror "Please report this as a bug at http://bugs.gentoo.org/"
81 die "$msg"
82 fi
83 }
84
85 # ------------------------------------------------------------------------
86 # INTERNAL FUNCTION - USED BY THIS ECLASS ONLY
87 # ------------------------------------------------------------------------
88
89 function webapp_check_installedat
90 {
91 local my_output
92
93 ${WEBAPP_CONFIG} --show-installed -h localhost -d "${INSTALL_DIR}" 2> /dev/null
94 }
95
96 # ------------------------------------------------------------------------
97 # INTERNAL FUNCTION - USED BY THIS ECLASS ONLY
98 #
99 # ------------------------------------------------------------------------
100
101 function webapp_strip_appdir ()
102 {
103 local my_stripped="${1}"
104 echo "${1}" | sed -e "s|${MY_APPDIR}/||g;"
105 }
106
107 function webapp_strip_d ()
108 {
109 echo "${1}" | sed -e "s|${D}||g;"
110 }
111
112 function webapp_strip_cwd ()
113 {
114 local my_stripped="${1}"
115 echo "${1}" | sed -e 's|/./|/|g;'
116 }
117
118 # ------------------------------------------------------------------------
119 # EXPORTED FUNCTION - FOR USE IN EBUILDS
120 #
121 # Identify a config file for a web-based application.
122 #
123 # @param $1 - config file
124 # ------------------------------------------------------------------------
125
126 function webapp_configfile ()
127 {
128 webapp_checkfileexists "${1}" "${D}"
129
130 local MY_FILE="$(webapp_strip_appdir ${1})"
131 MY_FILE="$(webapp_strip_cwd ${MY_FILE})"
132
133 einfo "(config) ${MY_FILE}"
134 echo "${MY_FILE}" >> ${D}/${WA_CONFIGLIST}
135 }
136
137 # ------------------------------------------------------------------------
138 # EXPORTED FUNCTION - FOR USE IN EBUILDS
139 #
140 # Install a script that will run after a virtual copy is created, and
141 # before a virtual copy has been removed
142 #
143 # @param $1 - the script to run
144 # ------------------------------------------------------------------------
145
146 function webapp_hook_script ()
147 {
148 webapp_checkfileexists "${1}"
149
150 einfo "(hook) ${1}"
151 cp "${1}" "${D}/${MY_HOOKSCRIPTSDIR}/$(basename ${1})" || die "Unable to install ${1} into ${D}/${MY_HOOKSCRIPTSDIR}/"
152 chmod 555 "${D}/${MY_HOOKSCRIPTSDIR}/$(basename ${1})"
153 }
154
155 # ------------------------------------------------------------------------
156 # EXPORTED FUNCTION - FOR USE IN EBUILDS
157 #
158 # Install a text file containing post-installation instructions.
159 #
160 # @param $1 - language code (use 'en' for now)
161 # @param $2 - the file to install
162 # ------------------------------------------------------------------------
163
164 function webapp_postinst_txt ()
165 {
166 webapp_checkfileexists "${2}"
167
168 einfo "(info) ${2} (lang: ${1})"
169 cp "${2}" "${D}/${MY_APPDIR}/postinst-${1}.txt"
170 }
171
172 # ------------------------------------------------------------------------
173 # EXPORTED FUNCTION - FOR USE IN EBUILDS
174 #
175 # Install a text file containing post-upgrade instructions.
176 #
177 # @param $1 - language code (use 'en' for now)
178 # @param $2 - the file to install
179 # ------------------------------------------------------------------------
180
181 function webapp_postupgrade_txt ()
182 {
183 webapp_checkfileexists "${2}"
184
185 einfo "(info) ${2} (lang: ${1})"
186 cp "${2}" "${D}/${MY_APPDIR}/postupgrade-${1}.txt"
187 }
188
189 # ------------------------------------------------------------------------
190 # EXPORTED FUNCTION - FOR USE IN EBUILDS
191 #
192 # Identify a file which must be owned by the webserver's user:group
193 # settings.
194 #
195 # The ownership of the file is NOT set until the application is installed
196 # using the webapp-config tool.
197 #
198 # @param $1 - file to be owned by the webserver user:group combo
199 #
200 # ------------------------------------------------------------------------
201
202 function webapp_serverowned ()
203 {
204 webapp_checkfileexists "${1}" "$D"
205 local MY_FILE="$(webapp_strip_appdir ${1})"
206 MY_FILE="$(webapp_strip_cwd ${MY_FILE})"
207
208 einfo "(server owned) ${MY_FILE}"
209 echo "${MY_FILE}" >> "${D}/${WA_SOLIST}"
210 }
211
212 # ------------------------------------------------------------------------
213 # EXPORTED FUNCTION - FOR USE IN EBUILDS
214 #
215 # @param $1 - the webserver to install the config file for
216 # (one of apache1, apache2, cherokee)
217 # @param $2 - the config file to install
218 # @param $3 - new name for the config file (default is `basename $2`)
219 # this is an optional parameter
220 #
221 # NOTE:
222 # this function will automagically prepend $1 to the front of your
223 # config file's name
224 # ------------------------------------------------------------------------
225
226 function webapp_server_configfile ()
227 {
228 webapp_checkfileexists "${2}"
229
230 # sort out what the name will be of the config file
231
232 local my_file
233
234 if [ -z "${3}" ]; then
235 my_file="${1}-$(basename ${2})"
236 else
237 my_file="${1}-${3}"
238 fi
239
240 # warning:
241 #
242 # do NOT change the naming convention used here without changing all
243 # the other scripts that also rely upon these names
244
245 einfo "(${1}) config file '${my_file}'"
246 cp "${2}" "${D}/${MY_SERVERCONFIGDIR}/${my_file}"
247 }
248
249 # ------------------------------------------------------------------------
250 # EXPORTED FUNCTION - FOR USE IN EBUILDS
251 #
252 # @param $1 - the db engine that the script is for
253 # (one of: mysql|postgres)
254 # @param $2 - the sql script to be installed
255 # @param $3 - the older version of the app that this db script
256 # will upgrade from
257 # (do not pass this option if your SQL script only creates
258 # a new db from scratch)
259 # ------------------------------------------------------------------------
260
261 function webapp_sqlscript ()
262 {
263 webapp_checkfileexists "${2}"
264
265 # create the directory where this script will go
266 #
267 # scripts for specific database engines go into their own subdirectory
268 # just to keep things readable on the filesystem
269
270 if [ ! -d "${D}/${MY_SQLSCRIPTSDIR}/${1}" ]; then
271 mkdir -p "${D}/${MY_SQLSCRIPTSDIR}/${1}" || die "unable to create directory ${D}/${MY_SQLSCRIPTSDIR}/${1}"
272 fi
273
274 # warning:
275 #
276 # do NOT change the naming convention used here without changing all
277 # the other scripts that also rely upon these names
278
279 # are we dealing with an 'upgrade'-type script?
280 if [ -n "${3}" ]; then
281 # yes we are
282 einfo "(${1}) upgrade script from ${PN}-${PVR} to ${3}"
283 cp "${2}" "${D}${MY_SQLSCRIPTSDIR}/${1}/${3}_to_${PVR}.sql"
284 chmod 600 "${D}${MY_SQLSCRIPTSDIR}/${1}/${3}_to_${PVR}.sql"
285 else
286 # no, we are not
287 einfo "(${1}) create script for ${PN}-${PVR}"
288 cp "${2}" "${D}/${MY_SQLSCRIPTSDIR}/${1}/${PVR}_create.sql"
289 chmod 600 "${D}/${MY_SQLSCRIPTSDIR}/${1}/${PVR}_create.sql"
290 fi
291 }
292
293 # ------------------------------------------------------------------------
294 # EXPORTED FUNCTION - call from inside your ebuild's src_install AFTER
295 # everything else has run
296 #
297 # For now, we just make sure that root owns everything, and that there
298 # are no setuid files.
299 # ------------------------------------------------------------------------
300
301 function webapp_src_install ()
302 {
303 chown -R "${VHOST_DEFAULT_UID}:${VHOST_DEFAULT_GID}" "${D}/"
304 chmod -R u-s "${D}/"
305 chmod -R g-s "${D}/"
306
307 keepdir "${MY_PERSISTDIR}"
308 fowners "root:root" "${MY_PERSISTDIR}"
309 fperms 755 "${MY_PERSISTDIR}"
310
311 # to test whether or not the ebuild has correctly called this function
312 # we add an empty file to the filesystem
313 #
314 # we used to just set a variable in the shell script, but we can
315 # no longer rely on Portage calling both webapp_src_install() and
316 # webapp_pkg_postinst() within the same shell process
317
318 touch "${D}/${MY_APPDIR}/${INSTALL_CHECK_FILE}"
319 }
320
321 # ------------------------------------------------------------------------
322 # EXPORTED FUNCTION - call from inside your ebuild's pkg_config AFTER
323 # everything else has run
324 #
325 # If 'vhosts' USE flag is not set, auto-install this app
326 #
327 # ------------------------------------------------------------------------
328
329 function webapp_pkg_setup ()
330 {
331 # add sanity checks here
332
333 if [ "${SLOT}+" != "${PVR}+" ]; then
334 # special case - some ebuilds *do* need to overwride the SLOT
335 if [ "${WEBAPP_MANUAL_SLOT}" != "yes" ]; then
336 die "ebuild sets SLOT, overrides webapp.eclass"
337 else
338 ewarn
339 ewarn "This ebuild overrides the default SLOT behaviour for webapps"
340 ewarn "If this package installs files into the htdocs dir, this is"
341 ewarn "probably a bug in the ebuild."
342 ewarn
343 fi
344 fi
345
346 # pull in the shared configuration file
347
348 G_HOSTNAME="localhost"
349 webapp_read_config
350
351 # are we installing a webapp-config solution over the top of a
352 # non-webapp-config solution?
353
354 if ! use vhosts ; then
355 local my_dir="${ROOT}${VHOST_ROOT}/${MY_HTDOCSBASE}/${PN}"
356 local my_output
357
358 if [ -d "${my_dir}" ] ; then
359 einfo "You already have something installed in ${my_dir}"
360 einfo "Are you trying to install over the top of something I cannot upgrade?"
361
362 my_output="$(webapp_check_installedat)"
363
364 if [ "$?" != "0" ]; then
365
366 # okay, whatever is there, it isn't webapp-config-compatible
367 ewarn
368 ewarn "Whatever is in ${my_dir}, it's not"
369 ewarn "compatible with webapp-config."
370 ewarn
371 ewarn "This ebuild may be overwriting important files."
372 ewarn
373 elif [ "$(echo ${my_output} | awk '{ print $1 }')" != "${PN}" ]; then
374 eerror "${my_dir} contains ${my_output}"
375 eerror "I cannot upgrade that"
376 die "Cannot upgrade contents of ${my_dir}"
377 else
378 einfo
379 einfo "I can upgrade the contents of ${my_dir}"
380 einfo
381 fi
382 fi
383 fi
384 }
385
386 function webapp_getinstalltype ()
387 {
388 # or are we upgrading?
389
390 if ! use vhosts ; then
391 # we only run webapp-config if vhosts USE flag is not set
392
393 local my_output
394
395 my_output="$(webapp_check_installedat)"
396
397 if [ "${?}" = "0" ] ; then
398 # something is already installed there
399 #
400 # make sure it isn't the same version
401
402 local my_pn="$(echo ${my_output} | awk '{ print $1 }')"
403 local my_pvr="$(echo ${my_output} | awk '{ print $2 }')"
404
405 REMOVE_PKG="${my_pn}-${my_pvr}"
406
407 if [ "${my_pn}" == "${PN}" ]; then
408 if [ "${my_pvr}" != "${PVR}" ]; then
409 einfo "This is an upgrade"
410 IS_UPGRADE=1
411 else
412 einfo "This is a re-installation"
413 IS_REPLACE=1
414 fi
415 else
416 einfo "${my_output} is installed there"
417 fi
418 else
419 einfo "This is an installation"
420 fi
421 fi
422 }
423
424 function webapp_src_preinst ()
425 {
426 # create the directories that we need
427
428 dodir "${MY_HTDOCSDIR}"
429 dodir "${MY_HOSTROOTDIR}"
430 dodir "${MY_CGIBINDIR}"
431 dodir "${MY_ICONSDIR}"
432 dodir "${MY_ERRORSDIR}"
433 dodir "${MY_SQLSCRIPTSDIR}"
434 dodir "${MY_HOOKSCRIPTSDIR}"
435 dodir "${MY_SERVERCONFIGDIR}"
436 }
437
438 function webapp_pkg_postinst ()
439 {
440 webapp_read_config
441
442 # sanity checks, to catch bugs in the ebuild
443
444 if [ ! -f "${ROOT}${MY_APPDIR}/${INSTALL_CHECK_FILE}" ]; then
445 eerror
446 eerror "This ebuild did not call webapp_src_install() at the end"
447 eerror "of the src_install() function"
448 eerror
449 eerror "Please log a bug on http://bugs.gentoo.org"
450 eerror
451 eerror "You should use emerge -C to remove this package, as the"
452 eerror "installation is incomplete"
453 eerror
454 die "Ebuild did not call webapp_src_install() - report to http://bugs.gentoo.org"
455 fi
456
457 # if 'vhosts' is not set in your USE flags, we install a copy of
458 # this application in ${ROOT}/var/www/localhost/htdocs/${PN}/ for you
459
460 if ! use vhosts ; then
461 echo
462 einfo "vhosts USE flag not set - auto-installing using webapp-config"
463
464 webapp_getinstalltype
465
466 G_HOSTNAME="localhost"
467 local my_mode=-I
468 webapp_read_config
469
470 if [ "${IS_REPLACE}" = "1" ]; then
471 einfo "${PN}-${PVR} is already installed - replacing"
472 my_mode=-I
473 elif [ "${IS_UPGRADE}" = "1" ]; then
474 einfo "${REMOVE_PKG} is already installed - upgrading"
475 my_mode=-U
476 else
477 einfo "${PN}-${PVR} is not installed - using install mode"
478 fi
479
480 my_cmd="${WEBAPP_CONFIG} ${my_mode} -h localhost -u root -d ${INSTALL_DIR} ${PN} ${PVR}"
481 einfo "Running ${my_cmd}"
482 ${my_cmd}
483
484 # remove the old version
485 #
486 # why do we do this? well ...
487 #
488 # normally, emerge -u installs a new version and then removes the
489 # old version. however, if the new version goes into a different
490 # slot to the old version, then the old version gets left behind
491 #
492 # if USE=-vhosts, then we want to remove the old version, because
493 # the user is relying on portage to do the magical thing for it
494
495 if [ "${IS_UPGRADE}" = "1" ] ; then
496 einfo "Removing old version ${REMOVE_PKG}"
497
498 emerge -C "${REMOVE_PKG}"
499 fi
500 else
501 # vhosts flag is on
502 #
503 # let's tell the administrator what to do next
504
505 einfo
506 einfo "The 'vhosts' USE flag is switched ON"
507 einfo "This means that Portage will not automatically run webapp-config to"
508 einfo "complete the installation."
509 einfo
510 einfo "To install ${PN}-${PVR} into a virtual host, run the following command:"
511 einfo
512 einfo " webapp-config -I -h <host> -d ${PN} ${PN} ${PVR}"
513 einfo
514 einfo "For more details, see the webapp-config(8) man page"
515 fi
516
517 return 0
518 }
519
520 function webapp_pkg_prerm ()
521 {
522 # remove any virtual installs that there are
523
524 local my_output
525 local x
526
527 my_output="$(${WEBAPP_CONFIG} --list-installs ${PN} ${PVR})"
528
529 if [ "${?}" != "0" ]; then
530 return
531 fi
532
533 for x in ${my_output} ; do
534 [ -f ${x}/.webapp ] && . ${x}/.webapp || ewarn "Cannot find file ${x}/.webapp"
535
536 if [ -z "${WEB_HOSTNAME}" -o -z "${WEB_INSTALLDIR}" ]; then
537 ewarn "Don't forget to use webapp-config to remove the copy of"
538 ewarn "${PN}-${PVR} installed in"
539 ewarn
540 ewarn " ${x}"
541 ewarn
542 else
543 # we have enough information to remove the virtual copy ourself
544
545 ${WEBAPP_CONFIG} -C -h ${WEB_HOSTNAME} -d ${WEB_INSTALLDIR}
546
547 # if the removal fails - we carry on anyway!
548 fi
549 done
550 }

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