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Contents of /trunk/mage/usr/lib/mage/depwalker.sh

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Revision 2735 - (show annotations) (download) (as text)
Tue Aug 12 15:23:05 2014 UTC (9 years, 8 months ago) by niro
File MIME type: application/x-sh
File size: 9759 byte(s)
-fixed a logic error/race-condition in depwalker, where the highest_magefile was added too late to ALLDEPS
1 #!/bin/bash
2 # $Id$
3 # dependeny walker
4
5 # default die function
6 die()
7 {
8 echo ${COLRED}"$@"${COLDEFAULT}
9 exit 1
10 }
11
12 decho()
13 {
14 if [[ ${DEBUG} = 1 ]]
15 then
16 echo "DEBUG: $@" >&2
17 fi
18 }
19
20 # include all needed files
21 [ -f /etc/mage.rc.global ] && \
22 source /etc/mage.rc.global || \
23 die "/etc/mage.rc.global missing"
24
25 [ -f ${MAGERC} ] && source ${MAGERC} || \
26 die "Your ${MAGERC} is missing. Aborting."
27
28 [ -f ${MLIBDIR}/mage4.functions.sh ] && \
29 source ${MLIBDIR}/mage4.functions.sh || \
30 die "mage functions missing"
31
32 [ -f ${MLIBDIR}/smage2.functions.sh ] && \
33 source ${MLIBDIR}/smage2.functions.sh || \
34 die "smage functions missing"
35
36 usage()
37 {
38 echo
39 echo "Usage: $(basename $0) [command] [arg] ..."
40 echo
41 echo " -h --help shows this help"
42 echo " -c --pcat category of the package"
43 echo " -n --pname name of the package"
44 echo " -v --pver version number of the package"
45 echo " -b --pbuild build number of the package"
46 echo " -m --method which calc method should be used:"
47 echo " install, srcinstall, pretend, srcpretend"
48 echo " upgrade, srcupgrade,"
49 echo " install-build-prerequisites,"
50 echo " pretend-build-prerequisites"
51 echo " -d --debug enable debug mode"
52 echo " -s --smage use a smage to calculate dependencies"
53 echo
54 echo "method, category, name, version and build must be given !"
55 echo
56 exit 1
57 }
58
59 # always default debug=0
60 DEBUG=0
61
62 # very basic getops
63 for i in $*
64 do
65 case $1 in
66 --pcat|-c) shift; PCAT="$1" ;;
67 --pname|-n) shift; PNAME="$1" ;;
68 --pver|-v) shift; PVER="$1" ;;
69 --pbuild|-b) shift; PBUILD="$1" ;;
70 --method|-m) shift; METHOD="$1" ;;
71 --debug|-d) shift; DEBUG=1 ;;
72 --smage|-s) shift; SMAGEFILE="$1"; SILENT=1; FVERBOSE=off ;;
73 --help|-h) usage ;;
74 esac
75 shift
76 done
77
78 # sanity checks; abort if not given
79 if [[ -z ${SMAGEFILE} ]]
80 then
81 [ -z "${PCAT}" ] && usage
82 [ -z "${PNAME}" ] && usage
83 [ -z "${PVER}" ] && usage
84 [ -z "${PBUILD}" ] && usage
85 fi
86 [ -z "${METHOD}" ] && usage
87
88 # check needed global vars
89 [ -z "${MAGEDIR}" ] && die "\$MAGEDIR not set."
90 [ -z "${INSTALLDB}" ] && die "\$INSTALLDB not set."
91 [ -z "${BUILDDIR}" ] && die "\$BUILDDIR not set."
92
93 # other needed vars
94 ALLDEPS=""
95 if [[ -n ${SMAGEFILE} ]]
96 then
97 if [[ -e ${SMAGEFILE} ]]
98 then
99 smagesource "${SMAGEFILE}"
100 else
101 die "Smage file '${SMAGEFILE}' does not exist!"
102 fi
103 fi
104 MAGEFILE="${MAGEDIR}/${PCAT}/${PNAME}/${PNAME}-${PVER}-${PBUILD}.mage"
105
106 # much faster than fgrep
107 checklist_alldeps()
108 {
109 local i
110 local item="$1"
111
112 for i in ${ALLDEPS}
113 do
114 [[ ${i} = ${item} ]] && return 1
115 done
116
117 return 0
118 }
119
120 checklist_processeddeps()
121 {
122 local i
123 local item="$1"
124
125 for i in ${PROCESSEDDEPS}
126 do
127 [[ ${i} = ${item} ]] && return 1
128 done
129
130 return 0
131 }
132
133 #####################
134 ## depwalking /path/to/mage/file/.mage
135 depwalking()
136 {
137 unset DEPEND
138 unset SDEPEND
139 unset MY_DEPEND
140
141 local DFILE
142 local SYM
143 local DEPNAME
144 local HIGHEST_DEPFILE
145 local MY_DEPEND
146 local REAL_PGKNAME
147 local VIRTUAL_NAME
148 local INSTALL_VIRTUAL
149 local PNAME
150 local PCAT
151 local PVER
152 local PBUILD
153
154 DFILE="$1"
155
156 # debug info
157 decho "depwalking magefile '${DFILE}'"
158 decho
159
160 source ${DFILE}
161
162 # forced nodeps
163 if [[ ${NODEPS} = true ]]
164 then
165 DEPEND=""
166 SDEPEND=""
167 fi
168
169 MY_DEPEND="${DEPEND}"
170
171 # for srcinstall & srcdepend only; SDEPEND also needed
172 if [[ ${METHOD} = srcinstall ]] ||
173 [[ ${METHOD} = srcpretend ]] ||
174 [[ ${METHOD} = srcupgrade ]] ||
175 [[ ${METHOD} = srcuppretend ]] ||
176 [[ ${METHOD} = install-build-prerequisites ]] ||
177 [[ ${METHOD} = pretend-build-prerequisites ]]
178 then
179 # only if SDEPEND is not zero
180 if [ -n "${SDEPEND}" ]
181 then
182 # crlf is substantly needed !!
183 if [ -n "${MY_DEPEND}" ]
184 then
185 MY_DEPEND="${MY_DEPEND}
186 ${SDEPEND}"
187 else
188 MY_DEPEND="${SDEPEND}"
189 fi
190 fi
191 fi
192
193 unset DEPEND
194 unset SDEPEND
195
196 if [ -z "${MY_DEPEND}" ]
197 then
198 decho "MY_DEPEND is empty; deps of '${DFILE}' ignored"
199 return 1
200 fi
201
202 while read SYM DEPNAME
203 do
204 # debug info
205 decho "DEPNAME='${DEPNAME}'"
206
207 # exclude empty depnames
208 [[ -z ${DEPNAME} ]] && continue
209
210 # exclude all already processed deps -without version
211 if ! checklist_processeddeps "${DEPNAME%-*}"
212 then
213 continue
214 fi
215
216 # mark depfile as processed to prevent double runs -without version
217 # but do not add any virtuals to PROCESSEDDEPS or their resolved
218 # pkgnames will be ignored and they are missing on the dependecy-list
219 if [[ ${DEPNAME/virtual\//} = ${DEPNAME} ]]
220 then
221 PROCESSEDDEPS="${PROCESSEDDEPS} ${DEPNAME%-*}"
222 fi
223
224 HIGHEST_DEPFILE=$(dep2highest_magefile "${DEPNAME}")
225 if [[ -z ${HIGHEST_DEPFILE} ]]
226 then
227 INVALID_DEPS+=" ${DEPNAME}:${DFILE}"
228 continue
229 fi
230
231 PCAT="$(magename2pcat ${HIGHEST_DEPFILE})"
232 PNAME="$(magename2pname ${HIGHEST_DEPFILE})"
233 PVER="$(magename2pver ${HIGHEST_DEPFILE})"
234 PBUILD="$(magename2pbuild ${HIGHEST_DEPFILE})"
235
236 ## dep already in ALLDEPS? then going on
237
238 # usage of fgrep is extremly slow and consumes a lot of cpu power
239 #if [ -z "$(echo ${ALLDEPS} | fgrep "${HIGHEST_DEPFILE}")" ]
240 if checklist_alldeps "${HIGHEST_DEPFILE}"
241 then
242 ### check if the dependency is already installed ###
243 if [ ! -d ${MROOT}${INSTALLDB}/${PCAT}/${PNAME}-${PVER}-${PBUILD} ]
244 then
245 ALLDEPS="${ALLDEPS} ${HIGHEST_DEPFILE}"
246 decho "added '${HIGHEST_DEPFILE}' to ALLDEPS"
247 depwalking ${HIGHEST_DEPFILE}
248 fi
249 fi
250 done << EOF
251 ${MY_DEPEND}
252 EOF
253 return 0
254 }
255
256 [[ ${METHOD} = pretend ]] || \
257 [[ ${METHOD} = srcpretend ]] || \
258 [[ ${METHOD} = uppretend ]] || \
259 [[ ${METHOD} = srcuppretend ]] || \
260 [[ ${METHOD} = pretend-build-prerequisites ]] && \
261 echo -n "Calculating dependencies ... "
262
263
264 if [[ ${METHOD} = upgrade ]] || \
265 [[ ${METHOD} = srcupgrade ]] || \
266 [[ ${METHOD} = uppretend ]] || \
267 [[ ${METHOD} = srcuppretend ]]
268 then
269 INSTDEPS="$(${MLIBDIR}/magequery.sh -i)"
270 for dep in ${INSTDEPS}
271 do
272 PCAT="$(magename2pcat ${dep} installdb)"
273 PNAME="$(magename2pname ${dep})"
274
275 # get the highest mage file from mage-db
276 MAGEFILE="$(get_highest_magefile ${PCAT} ${PNAME})"
277
278 # debug info
279 decho "dep='${dep}'"
280 decho "PCAT='${PCAT}'"
281 decho "PNAME='${PNAME}'"
282 decho "MAGEFILE='${MAGEFILE}'"
283
284 # if no install candidate was found, record this
285 # and process with the next one
286 if [[ -z ${MAGEFILE} ]]
287 then
288 NO_UPGRADE_CANDIDATE="${NO_UPGRADE_CANDIDATE} ${PCAT}/${PNAME}"
289 decho "added to NO_UPGRADE_CANDIDATE"
290 continue
291 fi
292
293 # now get the pver&pbuild from the new file
294 PVER="$(magename2pver ${MAGEFILE})"
295 PBUILD="$(magename2pbuild ${MAGEFILE})"
296
297 # debug info
298 decho "PVER='${PVER}'"
299 decho "PBUILD='${PBUILD}'"
300
301 # do not walk files which are installed
302 if [ ! -d ${INSTALLDB}/${PCAT}/${PNAME}-${PVER}-${PBUILD} ]
303 then
304 # get dependencies the package
305 depwalking ${MAGEFILE}
306
307 # now add the package itself to the dependencies
308 # (if not exists already)
309 if checklist_alldeps "${MAGEFILE}"
310 then
311 decho "added '${MAGEFILE}' to ALLDEPS"
312 ALLDEPS="${ALLDEPS} ${MAGEFILE}"
313 fi
314 else
315 # debug info
316 decho "ignored package"
317 decho
318 fi
319 done
320 else
321 # get all dependencies of the package
322 if [[ -n ${SMAGEFILE} ]]
323 then
324 depwalking "${SMAGEFILE}"
325 else
326 depwalking "${MAGEFILE}"
327 fi
328 fi
329
330 if [[ ${METHOD} != install-build-prerequisites ]] &&
331 [[ ${METHOD} != pretend-build-prerequisites ]] &&
332 [[ ${METHOD} != upgrade ]] &&
333 [[ ${METHOD} != uppretend ]] &&
334 [[ ${METHOD} != srcupgrade ]] &&
335 [[ ${METHOD} != srcuppretend ]]
336 then
337 # now add the package itself to the dependencies
338 # (if not exists already)
339 if checklist_alldeps "${MAGEFILE}"
340 then
341 decho "added '${MAGEFILE}' to ALLDEPS"
342 ALLDEPS="${ALLDEPS} ${MAGEFILE}"
343 fi
344 fi
345
346 [[ ${METHOD} = pretend ]] || \
347 [[ ${METHOD} = srcpretend ]] || \
348 [[ ${METHOD} = uppretend ]] || \
349 [[ ${METHOD} = srcuppretend ]] || \
350 [[ ${METHOD} = pretend-build-prerequisites ]] && \
351 echo "done"
352
353
354 ## show output of pretend
355 if [[ ${METHOD} = pretend ]] || \
356 [[ ${METHOD} = srcpretend ]] || \
357 [[ ${METHOD} = uppretend ]] || \
358 [[ ${METHOD} = srcuppretend ]] || \
359 [[ ${METHOD} = pretend-build-prerequisites ]]
360 then
361 # this is a little bit faster
362 declare -i x=0
363 echo -n "Building dependencies list ... "
364 for i in ${ALLDEPS}
365 do
366 (( x++ ))
367 k="$x"
368 [ ${x} -le 9 ] && k="0${k}"
369 #[ ${x} -le 99 ] && k="0${k}"
370 PCAT="$(magename2pcat ${i})"
371 PNAME="$(magename2pname ${i})"
372 PVER="$(magename2pver ${i})"
373 PBUILD="$(magename2pbuild ${i})"
374 if [ -z "${list}" ]
375 then
376 list="\t${COLBLUE}[${k}] ${COLGREEN}${PCAT}/${PNAME}-${PVER}-${PBUILD}${COLDEFAULT}"
377 else
378 list="${list}
379 \t${COLBLUE}[${k}] ${COLGREEN}${PCAT}/${PNAME}-${PVER}-${PBUILD}${COLDEFAULT}"
380 fi
381 unset PCAT PNAME PVER PBUILD
382 done
383 echo "done"
384 echo -e "${list}"
385 echo
386
387 if [[ ! -z ${INVALID_DEPS} ]]
388 then
389 echo -e "${COLRED}Invalid dependencies found:${COLDEFAULT}"
390 for i in ${INVALID_DEPS}
391 do
392 _dep="${i%%:*}"
393 _mage="${i##*:}"
394 echo -e "${COLRED} '${_dep}' -> '${_mage}'${COLDEFAULT}"
395 done
396 echo
397 fi
398
399 if [[ ! -z ${NO_UPGRADE_CANDIDATE} ]]
400 then
401 echo -e "${COLRED}Currently no candidates found for:${COLDEFAULT}"
402 for i in ${NO_UPGRADE_CANDIDATE}
403 do
404 echo -e "${COLRED} ${i}${COLDEFAULT}"
405 done
406 echo
407 echo -e "${COLRED}Please consider to uninstall all of them first,${COLDEFAULT}"
408 echo -e "${COLRED}because these packages does not exist in this distribution${COLDEFAULT}"
409 echo -e "${COLRED}anymore and there will be no further support for them.${COLDEFAULT}"
410 echo
411 fi
412 fi
413
414 ## return output from src/install deps
415 [[ ${METHOD} = install ]] || \
416 [[ ${METHOD} = srcinstall ]] || \
417 [[ ${METHOD} = upgrade ]] || \
418 [[ ${METHOD} = srcupgrade ]] || \
419 [[ ${METHOD} = install-build-prerequisites ]] && \
420 echo "${ALLDEPS}"

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