1#!/bin/sh
2
3# mergemaster
4
5# Compare files created by /usr/src/etc/Makefile (or the directory
6# the user specifies) with the currently installed copies.
7
8# Copyright (c) 1998-2012 Douglas Barton, All rights reserved
9# Please see detailed copyright below
10
11# $FreeBSD$
12
13PATH=/bin:/usr/bin:/usr/sbin
14
15display_usage () {
16  VERSION_NUMBER=`grep "[$]FreeBSD:" $0 | cut -d ' ' -f 4`
17  echo "mergemaster version ${VERSION_NUMBER}"
18  echo 'Usage: mergemaster [-scrvhpCP] [-a|[-iFU]] [--run-updates=always|never]'
19  echo '    [-m /path] [-t /path] [-d] [-u N] [-w N] [-A arch] [-D /path]'
20  echo "Options:"
21  echo "  -s  Strict comparison (diff every pair of files)"
22  echo "  -c  Use context diff instead of unified diff"
23  echo "  -r  Re-run on a previously cleaned directory (skip temproot creation)"
24  echo "  -v  Be more verbose about the process, include additional checks"
25  echo "  -a  Leave all files that differ to merge by hand"
26  echo "  -h  Display more complete help"
27  echo '  -i  Automatically install files that do not exist in destination directory'
28  echo '  -p  Pre-buildworld mode, only compares crucial files'
29  echo '  -F  Install files that differ only by revision control Id ($FreeBSD)'
30  echo '  -C  Compare local rc.conf variables to the defaults'
31  echo '  -P  Preserve files that are overwritten'
32  echo "  -U  Attempt to auto upgrade files that have not been user modified"
33  echo '      ***DANGEROUS***'
34  echo '  --run-updates=  Specify always or never to run newalises, pwd_mkdb, etc.'
35  echo ''
36  echo "  -m /path/directory  Specify location of source to do the make in"
37  echo "  -t /path/directory  Specify temp root directory"
38  echo "  -d  Add date and time to directory name (e.g., /var/tmp/temproot.`date +%m%d.%H.%M`)"
39  echo "  -u N  Specify a numeric umask"
40  echo "  -w N  Specify a screen width in columns to sdiff"
41  echo "  -A architecture  Alternative architecture name to pass to make"
42  echo '  -D /path/directory  Specify the destination directory to install files to'
43  echo ''
44}
45
46display_help () {
47  echo "* To specify a directory other than /var/tmp/temproot for the"
48  echo "  temporary root environment, use -t /path/to/temp/root"
49  echo "* The -w option takes a number as an argument for the column width"
50  echo "  of the screen.  The default is 80."
51  echo '* The -a option causes mergemaster to run without prompting.'
52}
53
54# Loop allowing the user to use sdiff to merge files and display the merged
55# file.
56merge_loop () {
57  case "${VERBOSE}" in
58  '') ;;
59  *)
60      echo "   *** Type h at the sdiff prompt (%) to get usage help"
61      ;;
62  esac
63  echo ''
64  MERGE_AGAIN=yes
65  while [ "${MERGE_AGAIN}" = "yes" ]; do
66    # Prime file.merged so we don't blat the owner/group id's
67    cp -p "${COMPFILE}" "${COMPFILE}.merged"
68    sdiff -o "${COMPFILE}.merged" --text --suppress-common-lines \
69      --width=${SCREEN_WIDTH:-80} "${DESTDIR}${COMPFILE#.}" "${COMPFILE}"
70    INSTALL_MERGED=V
71    while [ "${INSTALL_MERGED}" = "v" -o "${INSTALL_MERGED}" = "V" ]; do
72      echo ''
73      echo "  Use 'i' to install merged file"
74      echo "  Use 'r' to re-do the merge"
75      echo "  Use 'v' to view the merged file"
76      echo "  Default is to leave the temporary file to deal with by hand"
77      echo ''
78      echo -n "    *** How should I deal with the merged file? [Leave it for later] "
79      read INSTALL_MERGED
80
81      case "${INSTALL_MERGED}" in
82      [iI])
83        mv "${COMPFILE}.merged" "${COMPFILE}"
84        echo ''
85        if mm_install "${COMPFILE}"; then
86          echo "     *** Merged version of ${COMPFILE} installed successfully"
87        else
88          echo "     *** Problem installing ${COMPFILE}, it will remain to merge by hand later"
89        fi
90        unset MERGE_AGAIN
91        ;;
92      [rR])
93        rm "${COMPFILE}.merged"
94        ;;
95      [vV])
96        ${PAGER} "${COMPFILE}.merged"
97        ;;
98      '')
99        echo "   *** ${COMPFILE} will remain for your consideration"
100        unset MERGE_AGAIN
101        ;;
102      *)
103        echo "invalid choice: ${INSTALL_MERGED}"
104        INSTALL_MERGED=V
105        ;;
106      esac
107    done
108  done
109}
110
111# Loop showing user differences between files, allow merge, skip or install
112# options
113diff_loop () {
114
115  HANDLE_COMPFILE=v
116
117  while [ "${HANDLE_COMPFILE}" = "v" -o "${HANDLE_COMPFILE}" = "V" -o \
118    "${HANDLE_COMPFILE}" = "NOT V" ]; do
119    if [ -f "${DESTDIR}${COMPFILE#.}" -a -f "${COMPFILE}" ]; then
120      if [ -n "${AUTO_UPGRADE}" -a -n "${CHANGED}" ]; then
121        case "${CHANGED}" in
122        *:${DESTDIR}${COMPFILE#.}:*) ;;		# File has been modified
123        *)
124          echo ''
125          echo "  *** ${COMPFILE} has not been user modified."
126          echo ''
127
128          if mm_install "${COMPFILE}"; then
129            echo "   *** ${COMPFILE} upgraded successfully"
130            echo ''
131            # Make the list print one file per line
132            AUTO_UPGRADED_FILES="${AUTO_UPGRADED_FILES}      ${DESTDIR}${COMPFILE#.}
133"
134          else
135            echo "   *** Problem upgrading ${COMPFILE}, it will remain to merge by hand"
136          fi
137          return
138          ;;
139        esac
140      fi
141      if [ "${HANDLE_COMPFILE}" = "v" -o "${HANDLE_COMPFILE}" = "V" ]; then
142	echo ''
143	echo '   ======================================================================   '
144	echo ''
145        (
146          echo "  *** Displaying differences between ${COMPFILE} and installed version:"
147          echo ''
148          diff ${DIFF_FLAG} ${DIFF_OPTIONS} "${DESTDIR}${COMPFILE#.}" "${COMPFILE}"
149        ) | ${PAGER}
150        echo ''
151      fi
152    else
153      echo ''
154      echo "  *** There is no installed version of ${COMPFILE}"
155      echo ''
156      case "${AUTO_INSTALL}" in
157      [Yy][Ee][Ss])
158        echo ''
159        if mm_install "${COMPFILE}"; then
160          echo "   *** ${COMPFILE} installed successfully"
161          echo ''
162          # Make the list print one file per line
163          AUTO_INSTALLED_FILES="${AUTO_INSTALLED_FILES}      ${DESTDIR}${COMPFILE#.}
164"
165        else
166          echo "   *** Problem installing ${COMPFILE}, it will remain to merge by hand"
167        fi
168        return
169        ;;
170      *)
171        NO_INSTALLED=yes
172        ;;
173      esac
174    fi
175
176    echo "  Use 'd' to delete the temporary ${COMPFILE}"
177    echo "  Use 'i' to install the temporary ${COMPFILE}"
178    case "${NO_INSTALLED}" in
179    '')
180      echo "  Use 'm' to merge the temporary and installed versions"
181      echo "  Use 'v' to view the diff results again"
182      ;;
183    esac
184    echo ''
185    echo "  Default is to leave the temporary file to deal with by hand"
186    echo ''
187    echo -n "How should I deal with this? [Leave it for later] "
188    read HANDLE_COMPFILE
189
190    case "${HANDLE_COMPFILE}" in
191    [dD])
192      rm "${COMPFILE}"
193      echo ''
194      echo "   *** Deleting ${COMPFILE}"
195      ;;
196    [iI])
197      echo ''
198      if mm_install "${COMPFILE}"; then
199        echo "   *** ${COMPFILE} installed successfully"
200      else
201        echo "   *** Problem installing ${COMPFILE}, it will remain to merge by hand"
202      fi
203      ;;
204    [mM])
205      case "${NO_INSTALLED}" in
206      '')
207        # interact with user to merge files
208        merge_loop
209        ;;
210      *)
211        echo ''
212        echo "   *** There is no installed version of ${COMPFILE}"
213        echo ''
214        HANDLE_COMPFILE="NOT V"
215        ;;
216      esac # End of "No installed version of file but user selected merge" test
217      ;;
218    [vV])
219      continue
220      ;;
221    '')
222      echo ''
223      echo "   *** ${COMPFILE} will remain for your consideration"
224      ;;
225    *)
226      # invalid choice, show menu again.
227      echo "invalid choice: ${HANDLE_COMPFILE}"
228      echo ''
229      HANDLE_COMPFILE="NOT V"
230      continue
231      ;;
232    esac  # End of "How to handle files that are different"
233  done
234  unset NO_INSTALLED
235  echo ''
236  case "${VERBOSE}" in
237  '') ;;
238  *)
239    sleep 3
240    ;;
241  esac
242}
243
244press_to_continue () {
245  local DISCARD
246  echo -n ' *** Press the [Enter] or [Return] key to continue '
247  read DISCARD
248}
249
250# Set the default path for the temporary root environment
251#
252TEMPROOT='/var/tmp/temproot'
253
254# Read /etc/mergemaster.rc first so the one in $HOME can override
255#
256if [ -r /etc/mergemaster.rc ]; then
257  . /etc/mergemaster.rc
258fi
259
260# Read .mergemasterrc before command line so CLI can override
261#
262if [ -r "$HOME/.mergemasterrc" ]; then
263  . "$HOME/.mergemasterrc"
264fi
265
266for var in "$@" ; do
267  case "$var" in
268  --run-updates*)
269    RUN_UPDATES=`echo ${var#--run-updates=} | tr [:upper:] [:lower:]`
270    ;;
271  *)
272    newopts="$newopts $var"
273    ;;
274  esac
275done
276
277set -- $newopts
278unset var newopts
279
280# Check the command line options
281#
282while getopts ":ascrvhipCPm:t:du:w:D:A:FU" COMMAND_LINE_ARGUMENT ; do
283  case "${COMMAND_LINE_ARGUMENT}" in
284  A)
285    ARCHSTRING='TARGET_ARCH='${OPTARG}
286    ;;
287  F)
288    FREEBSD_ID=yes
289    ;;
290  U)
291    AUTO_UPGRADE=yes
292    ;;
293  s)
294    STRICT=yes
295    unset DIFF_OPTIONS
296    ;;
297  c)
298    DIFF_FLAG='-c'
299    ;;
300  r)
301    RERUN=yes
302    ;;
303  v)
304    case "${AUTO_RUN}" in
305    '') VERBOSE=yes ;;
306    esac
307    ;;
308  a)
309    AUTO_RUN=yes
310    unset VERBOSE
311    ;;
312  h)
313    display_usage
314    display_help
315    exit 0
316    ;;
317  i)
318    AUTO_INSTALL=yes
319    ;;
320  C)
321    COMP_CONFS=yes
322    ;;
323  P)
324    PRESERVE_FILES=yes
325    ;;
326  p)
327    PRE_WORLD=yes
328    unset COMP_CONFS
329    unset AUTO_RUN
330    ;;
331  m)
332    SOURCEDIR=${OPTARG}
333    ;;
334  t)
335    TEMPROOT=${OPTARG}
336    ;;
337  d)
338    TEMPROOT=${TEMPROOT}.`date +%m%d.%H.%M`
339    ;;
340  u)
341    NEW_UMASK=${OPTARG}
342    ;;
343  w)
344    SCREEN_WIDTH=${OPTARG}
345    ;;
346  D)
347    DESTDIR=${OPTARG}
348    ;;
349  *)
350    display_usage
351    exit 1
352    ;;
353  esac
354done
355
356if [ -n "$AUTO_RUN" ]; then
357  if [ -n "$FREEBSD_ID" -o -n "$AUTO_UPGRADE" -o -n "$AUTO_INSTALL" ]; then
358    echo ''
359    echo "*** You have included the -a option along with one or more options"
360    echo '    that indicate that you wish mergemaster to actually make updates'
361    echo '    (-F, -U, or -i), however these options are not compatible.'
362    echo '    Please read mergemaster(8) for more information.'
363    echo ''
364    exit 1
365  fi
366fi
367
368# Assign the location of the mtree database
369#
370MTREEDB=${MTREEDB:-${DESTDIR}/var/db}
371MTREEFILE="${MTREEDB}/mergemaster.mtree"
372
373# Don't force the user to set this in the mergemaster rc file
374if [ -n "${PRESERVE_FILES}" -a -z "${PRESERVE_FILES_DIR}" ]; then
375  PRESERVE_FILES_DIR=/var/tmp/mergemaster/preserved-files-`date +%y%m%d-%H%M%S`
376  mkdir -p ${PRESERVE_FILES_DIR}
377fi
378
379# Check for the mtree database in DESTDIR
380case "${AUTO_UPGRADE}" in
381'') ;;	# If the option is not set no need to run the test or warn the user
382*)
383  if [ ! -s "${MTREEFILE}" ]; then
384    echo ''
385    echo "*** Unable to find mtree database (${MTREEFILE})."
386    echo "    Skipping auto-upgrade on this run."
387    echo "    It will be created for the next run when this one is complete."
388    echo ''
389    case "${AUTO_RUN}" in
390    '')
391      press_to_continue
392      ;;
393    esac
394    unset AUTO_UPGRADE
395  fi
396  ;;
397esac
398
399if [ -e "${DESTDIR}/etc/fstab" ]; then
400  if grep -q nodev ${DESTDIR}/etc/fstab; then
401    echo ''
402    echo "*** You have the deprecated 'nodev' option in ${DESTDIR}/etc/fstab."
403    echo "    This can prevent the filesystem from being mounted on reboot."
404    echo "    Please update your fstab before continuing."
405    echo "    See fstab(5) for more information."
406    echo ''
407    exit 1
408  fi
409fi
410
411echo ''
412
413# If the user has a pager defined, make sure we can run it
414#
415case "${DONT_CHECK_PAGER}" in
416'')
417check_pager () {
418  while ! type "${PAGER%% *}" >/dev/null; do
419    echo " *** Your PAGER environment variable specifies '${PAGER}', but"
420    echo "     due to the limited PATH that I use for security reasons,"
421    echo "     I cannot execute it.  So, what would you like to do?"
422    echo ''
423    echo "  Use 'e' to exit mergemaster and fix your PAGER variable"
424    echo "  Use 'l' to set PAGER to 'less' for this run"
425    echo "  Use 'm' to use plain old 'more' as your PAGER for this run"
426    echo ''
427    echo "  or you may type an absolute path to PAGER for this run"
428    echo ''
429    echo "  Default is to use plain old 'more' "
430    echo ''
431    echo -n "What should I do? [Use 'more'] "
432    read FIXPAGER
433
434    case "${FIXPAGER}" in
435    [eE])
436       exit 0
437       ;;
438    [lL])
439       PAGER=less
440       ;;
441    [mM]|'')
442       PAGER=more
443       ;;
444    /*)
445       PAGER="$FIXPAGER"
446       ;;
447    *)
448       echo ''
449       echo "invalid choice: ${FIXPAGER}"
450    esac
451    echo ''
452  done
453}
454  if [ -n "${PAGER}" ]; then
455    check_pager
456  fi
457  ;;
458esac
459
460# If user has a pager defined, or got assigned one above, use it.
461# If not, use more.
462#
463PAGER=${PAGER:-more}
464
465if [ -n "${VERBOSE}" -a ! "${PAGER}" = "more" ]; then
466  echo " *** You have ${PAGER} defined as your pager so we will use that"
467  echo ''
468  sleep 3
469fi
470
471# Assign the diff flag once so we will not have to keep testing it
472#
473DIFF_FLAG=${DIFF_FLAG:--u}
474
475# Assign the source directory
476#
477SOURCEDIR=${SOURCEDIR:-/usr/src}
478if [ ! -f ${SOURCEDIR}/Makefile.inc1 -a \
479   -f ${SOURCEDIR}/../Makefile.inc1 ]; then
480  echo " *** The source directory you specified (${SOURCEDIR})"
481  echo "     will be reset to ${SOURCEDIR}/.."
482  echo ''
483  sleep 3
484  SOURCEDIR=${SOURCEDIR}/..
485fi
486SOURCEDIR=$(realpath "$SOURCEDIR")
487
488# Setup make to use system files from SOURCEDIR
489MM_MAKE="make ${ARCHSTRING} -m ${SOURCEDIR}/share/mk"
490
491# Check DESTDIR against the mergemaster mtree database to see what
492# files the user changed from the reference files.
493#
494if [ -n "${AUTO_UPGRADE}" -a -s "${MTREEFILE}" ]; then
495	# Force FreeBSD 9 compatible output when available.
496	if mtree -F freebsd9 -c -p /var/empty/ > /dev/null 2>&1; then
497		MTREE_FLAVOR="-F freebsd9"
498	else
499		MTREE_FLAVOR=
500	fi
501	CHANGED=:
502	for file in `mtree -eqL ${MTREE_FLAVOR} -f ${MTREEFILE} -p ${DESTDIR}/ \
503		2>/dev/null | awk '($2 == "changed") {print $1}'`; do
504		if [ -f "${DESTDIR}/$file" ]; then
505			CHANGED="${CHANGED}${DESTDIR}/${file}:"
506		fi
507	done
508	[ "$CHANGED" = ':' ] && unset CHANGED
509fi
510
511# Check the width of the user's terminal
512#
513if [ -t 0 ]; then
514  w=`tput columns`
515  case "${w}" in
516  0|'') ;; # No-op, since the input is not valid
517  *)
518    case "${SCREEN_WIDTH}" in
519    '') SCREEN_WIDTH="${w}" ;;
520    "${w}") ;; # No-op, since they are the same
521    *)
522      echo -n "*** You entered ${SCREEN_WIDTH} as your screen width, but stty "
523      echo "thinks it is ${w}."
524      echo ''
525      echo -n "What would you like to use? [${w}] "
526      read SCREEN_WIDTH
527      case "${SCREEN_WIDTH}" in
528      '') SCREEN_WIDTH="${w}" ;;
529      esac
530      ;;
531    esac
532  esac
533fi
534
535# Define what $Id tag to look for to aid portability.
536#
537ID_TAG=FreeBSD
538
539delete_temproot () {
540  rm -rf "${TEMPROOT}" 2>/dev/null
541  chflags -R 0 "${TEMPROOT}" 2>/dev/null
542  rm -rf "${TEMPROOT}" || { echo "*** Unable to delete ${TEMPROOT}";  exit 1; }
543}
544
545case "${RERUN}" in
546'')
547  # Set up the loop to test for the existence of the
548  # temp root directory.
549  #
550  TEST_TEMP_ROOT=yes
551  while [ "${TEST_TEMP_ROOT}" = "yes" ]; do
552    if [ -d "${TEMPROOT}" ]; then
553      echo "*** The directory specified for the temporary root environment,"
554      echo "    ${TEMPROOT}, exists.  This can be a security risk if untrusted"
555      echo "    users have access to the system."
556      echo ''
557      case "${AUTO_RUN}" in
558      '')
559        echo "  Use 'd' to delete the old ${TEMPROOT} and continue"
560        echo "  Use 't' to select a new temporary root directory"
561        echo "  Use 'e' to exit mergemaster"
562        echo ''
563        echo "  Default is to use ${TEMPROOT} as is"
564        echo ''
565        echo -n "How should I deal with this? [Use the existing ${TEMPROOT}] "
566        read DELORNOT
567
568        case "${DELORNOT}" in
569        [dD])
570          echo ''
571          echo "   *** Deleting the old ${TEMPROOT}"
572          echo ''
573          delete_temproot
574          unset TEST_TEMP_ROOT
575          ;;
576        [tT])
577          echo "   *** Enter new directory name for temporary root environment"
578          read TEMPROOT
579          ;;
580        [eE])
581          exit 0
582          ;;
583        '')
584          echo ''
585          echo "   *** Leaving ${TEMPROOT} intact"
586          echo ''
587          unset TEST_TEMP_ROOT
588          ;;
589        *)
590          echo ''
591          echo "invalid choice: ${DELORNOT}"
592          echo ''
593          ;;
594        esac
595        ;;
596      *)
597        # If this is an auto-run, try a hopefully safe alternative then
598        # re-test anyway.
599        TEMPROOT=/var/tmp/temproot.`date +%m%d.%H.%M.%S`
600        ;;
601      esac
602    else
603      unset TEST_TEMP_ROOT
604    fi
605  done
606
607  echo "*** Creating the temporary root environment in ${TEMPROOT}"
608
609  if mkdir -p "${TEMPROOT}"; then
610    echo " *** ${TEMPROOT} ready for use"
611  fi
612
613  if [ ! -d "${TEMPROOT}" ]; then
614    echo ''
615    echo "  *** FATAL ERROR: Cannot create ${TEMPROOT}"
616    echo ''
617    exit 1
618  fi
619
620  echo " *** Creating and populating directory structure in ${TEMPROOT}"
621  echo ''
622
623  case "${VERBOSE}" in
624  '') ;;
625  *)
626    press_to_continue
627    ;;
628  esac
629
630  case "${PRE_WORLD}" in
631  '')
632    { cd ${SOURCEDIR} &&
633      case "${DESTDIR}" in
634      '') ;;
635      *)
636        ${MM_MAKE} DESTDIR=${DESTDIR} distrib-dirs >/dev/null
637        ;;
638      esac
639      ${MM_MAKE} DESTDIR=${TEMPROOT} distrib-dirs >/dev/null &&
640      ${MM_MAKE} _obj SUBDIR_OVERRIDE=etc >/dev/null &&
641      ${MM_MAKE} everything SUBDIR_OVERRIDE=etc >/dev/null &&
642      ${MM_MAKE} DESTDIR=${TEMPROOT} distribution >/dev/null;} ||
643    { echo '';
644     echo "  *** FATAL ERROR: Cannot 'cd' to ${SOURCEDIR} and install files to";
645      echo "      the temproot environment";
646      echo '';
647      exit 1;}
648    ;;
649  *)
650    # Only set up files that are crucial to {build|install}world
651    { mkdir -p ${TEMPROOT}/etc &&
652      cp -p ${SOURCEDIR}/etc/master.passwd ${TEMPROOT}/etc &&
653      install -p -o root -g wheel -m 0644 ${SOURCEDIR}/etc/group ${TEMPROOT}/etc;} ||
654    { echo '';
655      echo '  *** FATAL ERROR: Cannot copy files to the temproot environment';
656      echo '';
657      exit 1;}
658    ;;
659  esac
660
661  # Doing the inventory and removing files that we don't want to compare only
662  # makes sense if we are not doing a rerun, since we have no way of knowing
663  # what happened to the files during previous incarnations.
664  case "${VERBOSE}" in
665  '') ;;
666  *)
667    echo ''
668    echo ' *** The following files exist only in the installed version of'
669    echo "     ${DESTDIR}/etc.  In the vast majority of cases these files"
670    echo '     are necessary parts of the system and should not be deleted.'
671    echo '     However because these files are not updated by this process you'
672    echo '     might want to verify their status before rebooting your system.'
673    echo ''
674    press_to_continue
675    diff -qr ${DESTDIR}/etc ${TEMPROOT}/etc | grep "^Only in ${DESTDIR}/etc" | ${PAGER}
676    echo ''
677    press_to_continue
678    ;;
679  esac
680
681  case "${IGNORE_MOTD}" in
682  '') ;;
683  *)
684     echo ''
685     echo "*** You have the IGNORE_MOTD option set in your mergemaster rc file."
686     echo "    This option is deprecated in favor of the IGNORE_FILES option."
687     echo "    Please update your rc file accordingly."
688     echo ''
689     exit 1
690     ;;
691  esac
692
693  # Avoid comparing the following user specified files
694  for file in ${IGNORE_FILES}; do
695    test -e ${TEMPROOT}/${file} && unlink ${TEMPROOT}/${file}
696  done
697
698  # We really don't want to have to deal with files like login.conf.db, pwd.db,
699  # or spwd.db.  Instead, we want to compare the text versions, and run *_mkdb.
700  # Prompt the user to do so below, as needed.
701  #
702  rm -f ${TEMPROOT}/etc/*.db ${TEMPROOT}/etc/passwd
703
704  # We only need to compare things like freebsd.cf once
705  find ${TEMPROOT}/usr/obj -type f -delete 2>/dev/null
706
707  # Delete stuff we do not need to keep the mtree database small,
708  # and to make the actual comparison faster.
709  find ${TEMPROOT}/usr -type l -delete 2>/dev/null
710  find ${TEMPROOT} -type f -size 0 -delete 2>/dev/null
711  find -d ${TEMPROOT} -type d -empty -mindepth 1 -delete 2>/dev/null
712
713  # Build the mtree database in a temporary location.
714  case "${PRE_WORLD}" in
715  '') MTREENEW=`mktemp -t mergemaster.mtree`
716      mtree -nci -p ${TEMPROOT} -k size,md5digest > ${MTREENEW} 2>/dev/null
717      ;;
718  *) # We don't want to mess with the mtree database on a pre-world run or
719     # when re-scanning a previously-built tree.
720     ;;
721  esac
722  ;; # End of the "RERUN" test
723esac
724
725# Get ready to start comparing files
726
727# Check umask if not specified on the command line,
728# and we are not doing an autorun
729#
730if [ -z "${NEW_UMASK}" -a -z "${AUTO_RUN}" ]; then
731  USER_UMASK=`umask`
732  case "${USER_UMASK}" in
733  0022|022) ;;
734  *)
735    echo ''
736    echo " *** Your umask is currently set to ${USER_UMASK}.  By default, this script"
737    echo "     installs all files with the same user, group and modes that"
738    echo "     they are created with by ${SOURCEDIR}/etc/Makefile, compared to"
739    echo "     a umask of 022.  This umask allows world read permission when"
740    echo "     the file's default permissions have it."
741    echo ''
742    echo "     No world permissions can sometimes cause problems.  A umask of"
743    echo "     022 will restore the default behavior, but is not mandatory."
744    echo "     /etc/master.passwd is a special case.  Its file permissions"
745    echo "     will be 600 (rw-------) if installed."
746    echo ''
747    echo -n "What umask should I use? [${USER_UMASK}] "
748    read NEW_UMASK
749
750    NEW_UMASK="${NEW_UMASK:-$USER_UMASK}"
751    ;;
752  esac
753  echo ''
754fi
755
756CONFIRMED_UMASK=${NEW_UMASK:-0022}
757
758#
759# Warn users who still have old rc files
760#
761for file in atm devfs diskless1 diskless2 network network6 pccard \
762  serial syscons sysctl alpha amd64 i386 ia64 sparc64; do
763  if [ -f "${DESTDIR}/etc/rc.${file}" ]; then
764    OLD_RC_PRESENT=1
765    break
766  fi
767done
768
769case "${OLD_RC_PRESENT}" in
7701)
771  echo ''
772  echo " *** There are elements of the old rc system in ${DESTDIR}/etc/."
773  echo ''
774  echo '     While these scripts will not hurt anything, they are not'
775  echo '     functional on an up to date system, and can be removed.'
776  echo ''
777
778  case "${AUTO_RUN}" in
779  '')
780    echo -n 'Move these files to /var/tmp/mergemaster/old_rc? [yes] '
781    read MOVE_OLD_RC
782
783    case "${MOVE_OLD_RC}" in
784    [nN]*) ;;
785    *)
786      mkdir -p /var/tmp/mergemaster/old_rc
787        for file in atm devfs diskless1 diskless2 network network6 pccard \
788          serial syscons sysctl alpha amd64 i386 ia64 sparc64; do
789          if [ -f "${DESTDIR}/etc/rc.${file}" ]; then
790            mv ${DESTDIR}/etc/rc.${file} /var/tmp/mergemaster/old_rc/
791          fi
792        done
793      echo '  The files have been moved'
794      press_to_continue
795      ;;
796    esac
797    ;;
798  *) ;;
799  esac
800esac
801
802# Use the umask/mode information to install the files
803# Create directories as needed
804#
805install_error () {
806  echo "*** FATAL ERROR: Unable to install ${1} to ${2}"
807  echo ''
808  exit 1
809}
810
811do_install_and_rm () {
812  case "${PRESERVE_FILES}" in
813  [Yy][Ee][Ss])
814    if [ -f "${3}/${2##*/}" ]; then
815      mkdir -p ${PRESERVE_FILES_DIR}/${2%/*}
816      cp ${3}/${2##*/} ${PRESERVE_FILES_DIR}/${2%/*}
817    fi
818    ;;
819  esac
820
821  if [ ! -d "${3}/${2##*/}" ]; then
822    if install -m ${1} ${2} ${3}; then
823      unlink ${2}
824    else
825      install_error ${2} ${3}
826    fi
827  else
828    install_error ${2} ${3}
829  fi
830}
831
832# 4095 = "obase=10;ibase=8;07777" | bc
833find_mode () {
834  local OCTAL
835  OCTAL=$(( ~$(echo "obase=10; ibase=8; ${CONFIRMED_UMASK}" | bc) & 4095 &
836    $(echo "obase=10; ibase=8; $(stat -f "%OMp%OLp" ${1})" | bc) ))
837  printf "%04o\n" ${OCTAL}
838}
839
840mm_install () {
841  local INSTALL_DIR
842  INSTALL_DIR=${1#.}
843  INSTALL_DIR=${INSTALL_DIR%/*}
844
845  case "${INSTALL_DIR}" in
846  '')
847    INSTALL_DIR=/
848    ;;
849  esac
850
851  if [ -n "${DESTDIR}${INSTALL_DIR}" -a ! -d "${DESTDIR}${INSTALL_DIR}" ]; then
852    DIR_MODE=`find_mode "${TEMPROOT}/${INSTALL_DIR}"`
853    install -d -o root -g wheel -m "${DIR_MODE}" "${DESTDIR}${INSTALL_DIR}" ||
854      install_error $1 ${DESTDIR}${INSTALL_DIR}
855  fi
856
857  FILE_MODE=`find_mode "${1}"`
858
859  if [ ! -x "${1}" ]; then
860    case "${1#.}" in
861    /etc/mail/aliases)
862      NEED_NEWALIASES=yes
863      ;;
864    /etc/login.conf)
865      NEED_CAP_MKDB=yes
866      ;;
867    /etc/services)
868      NEED_SERVICES_MKDB=yes
869      ;;
870    /etc/master.passwd)
871      do_install_and_rm 600 "${1}" "${DESTDIR}${INSTALL_DIR}"
872      NEED_PWD_MKDB=yes
873      DONT_INSTALL=yes
874      ;;
875    /.cshrc | /.profile)
876      local st_nlink
877
878      # install will unlink the file before it installs the new one,
879      # so we have to restore/create the link afterwards.
880      #
881      st_nlink=0		# In case the file does not yet exist
882      eval $(stat -s ${DESTDIR}${COMPFILE#.} 2>/dev/null)
883
884      do_install_and_rm "${FILE_MODE}" "${1}" "${DESTDIR}${INSTALL_DIR}"
885
886      if [ -n "${AUTO_INSTALL}" -a $st_nlink -gt 1 ]; then
887        HANDLE_LINK=l
888      else
889        case "${LINK_EXPLAINED}" in
890        '')
891          echo "   *** Historically BSD derived systems have had a"
892          echo "       hard link from /.cshrc and /.profile to"
893          echo "       their namesakes in /root.  Please indicate"
894          echo "       your preference below for bringing your"
895          echo "       installed files up to date."
896          echo ''
897          LINK_EXPLAINED=yes
898          ;;
899        esac
900
901        echo "   Use 'd' to delete the temporary ${COMPFILE}"
902        echo "   Use 'l' to delete the existing ${DESTDIR}/root/${COMPFILE##*/} and create the link"
903        echo ''
904        echo "   Default is to leave the temporary file to deal with by hand"
905        echo ''
906        echo -n "  How should I handle ${COMPFILE}? [Leave it to install later] "
907        read HANDLE_LINK
908      fi
909
910      case "${HANDLE_LINK}" in
911      [dD]*)
912        rm "${COMPFILE}"
913        echo ''
914        echo "   *** Deleting ${COMPFILE}"
915        ;;
916      [lL]*)
917        echo ''
918        unlink ${DESTDIR}/root/${COMPFILE##*/}
919        if ln ${DESTDIR}${COMPFILE#.} ${DESTDIR}/root/${COMPFILE##*/}; then
920          echo "   *** Link from ${DESTDIR}${COMPFILE#.} to ${DESTDIR}/root/${COMPFILE##*/} installed successfully"
921        else
922          echo "   *** Error linking ${DESTDIR}${COMPFILE#.} to ${DESTDIR}/root/${COMPFILE##*/}"
923          echo "   *** ${COMPFILE} will remain for your consideration"
924        fi
925        ;;
926      *)
927        echo "   *** ${COMPFILE} will remain for your consideration"
928        ;;
929      esac
930      return
931      ;;
932    esac
933
934    case "${DONT_INSTALL}" in
935    '')
936      do_install_and_rm "${FILE_MODE}" "${1}" "${DESTDIR}${INSTALL_DIR}"
937      ;;
938    *)
939      unset DONT_INSTALL
940      ;;
941    esac
942  else	# File matched -x
943    do_install_and_rm "${FILE_MODE}" "${1}" "${DESTDIR}${INSTALL_DIR}"
944  fi
945  return $?
946}
947
948if [ ! -d "${TEMPROOT}" ]; then
949	echo "*** FATAL ERROR: The temproot directory (${TEMPROOT})"
950	echo '                 has disappeared!'
951	echo ''
952	exit 1
953fi
954
955echo ''
956echo "*** Beginning comparison"
957echo ''
958
959# Pre-world does not populate /etc/rc.d.
960# It is very possible that a previous run would have deleted files in
961# ${TEMPROOT}/etc/rc.d, thus creating a lot of false positives.
962if [ -z "${PRE_WORLD}" -a -z "${RERUN}" ]; then
963  echo "   *** Checking ${DESTDIR}/etc/rc.d for stale files"
964  echo ''
965  cd "${DESTDIR}/etc/rc.d" &&
966  for file in *; do
967    if [ ! -e "${TEMPROOT}/etc/rc.d/${file}" ]; then
968      STALE_RC_FILES="${STALE_RC_FILES} ${file}"
969    fi
970  done
971  case "${STALE_RC_FILES}" in
972  ''|' *')
973    echo '   *** No stale files found'
974    ;;
975  *)
976    echo "   *** The following files exist in ${DESTDIR}/etc/rc.d but not in"
977    echo "       ${TEMPROOT}/etc/rc.d/:"
978    echo ''
979    echo "${STALE_RC_FILES}"
980    echo ''
981    echo '       The presence of stale files in this directory can cause the'
982    echo '       dreaded unpredictable results, and therefore it is highly'
983    echo '       recommended that you delete them.'
984    case "${AUTO_RUN}" in
985    '')
986      echo ''
987      echo -n '   *** Delete them now? [n] '
988      read DELETE_STALE_RC_FILES
989      case "${DELETE_STALE_RC_FILES}" in
990      [yY])
991        echo '      *** Deleting ... '
992        rm ${STALE_RC_FILES}
993        echo '                       done.'
994        ;;
995      *)
996        echo '      *** Files will not be deleted'
997        ;;
998      esac
999      sleep 2
1000      ;;
1001    *)
1002      if [ -n "${DELETE_STALE_RC_FILES}" ]; then
1003        echo '      *** Deleting ... '
1004        rm ${STALE_RC_FILES}
1005        echo '                       done.'
1006      fi
1007    esac
1008    ;;
1009  esac
1010  echo ''
1011fi
1012
1013cd "${TEMPROOT}"
1014
1015if [ -r "${MM_PRE_COMPARE_SCRIPT}" ]; then
1016  . "${MM_PRE_COMPARE_SCRIPT}"
1017fi
1018
1019# Things that were files/directories/links in one version can sometimes
1020# change to something else in a newer version.  So we need to explicitly
1021# test for this, and warn the user if what we find does not match.
1022#
1023for COMPFILE in `find . | sort` ; do
1024  if [ -e "${DESTDIR}${COMPFILE#.}" ]; then
1025    INSTALLED_TYPE=`stat -f '%HT' ${DESTDIR}${COMPFILE#.}`
1026  else
1027    continue
1028  fi
1029  TEMPROOT_TYPE=`stat -f '%HT' $COMPFILE`
1030
1031  if [ ! "$TEMPROOT_TYPE" = "$INSTALLED_TYPE" ]; then
1032    [ "$COMPFILE" = '.' ] && continue
1033    TEMPROOT_TYPE=`echo $TEMPROOT_TYPE | tr [:upper:] [:lower:]`
1034    INSTALLED_TYPE=`echo $INSTALLED_TYPE | tr [:upper:] [:lower:]`
1035
1036    echo "*** The installed file ${DESTDIR}${COMPFILE#.} has the type \"$INSTALLED_TYPE\""
1037    echo "    but the new version has the type \"$TEMPROOT_TYPE\""
1038    echo ''
1039    echo "    How would you like to handle this?"
1040    echo ''
1041    echo "    Use 'r' to remove ${DESTDIR}${COMPFILE#.}"
1042    case "$TEMPROOT_TYPE" in
1043    'symbolic link')
1044	TARGET=`readlink $COMPFILE`
1045	echo "    and create a link to $TARGET in its place" ;;
1046    *)	echo "    You will be able to install it as a \"$TEMPROOT_TYPE\"" ;;
1047    esac
1048    echo ''
1049    echo "    Use 'i' to ignore this"
1050    echo ''
1051    echo -n "    How to proceed? [i] "
1052    read ANSWER
1053    case "$ANSWER" in
1054    [rR])	case "${PRESERVE_FILES}" in
1055		[Yy][Ee][Ss])
1056		mv ${DESTDIR}${COMPFILE#.} ${PRESERVE_FILES_DIR}/ || exit 1 ;;
1057		*) rm -rf ${DESTDIR}${COMPFILE#.} ;;
1058		esac
1059		case "$TEMPROOT_TYPE" in
1060		'symbolic link') ln -sf $TARGET ${DESTDIR}${COMPFILE#.} ;;
1061		esac ;;
1062    *)	echo ''
1063        echo "*** See the man page about adding ${COMPFILE#.} to the list of IGNORE_FILES"
1064        press_to_continue ;;
1065    esac
1066    echo ''
1067  fi
1068done
1069
1070for COMPFILE in `find . -type f | sort`; do
1071
1072  # First, check to see if the file exists in DESTDIR.  If not, the
1073  # diff_loop function knows how to handle it.
1074  #
1075  if [ ! -e "${DESTDIR}${COMPFILE#.}" ]; then
1076    case "${AUTO_RUN}" in
1077      '')
1078        diff_loop
1079        ;;
1080      *)
1081        case "${AUTO_INSTALL}" in
1082        '')
1083          # If this is an auto run, make it official
1084          echo "   *** ${COMPFILE} will remain for your consideration"
1085          ;;
1086        *)
1087          diff_loop
1088          ;;
1089        esac
1090        ;;
1091    esac # Auto run test
1092    continue
1093  fi
1094
1095  case "${STRICT}" in
1096  '' | [Nn][Oo])
1097    # Compare $Id's first so if the file hasn't been modified
1098    # local changes will be ignored.
1099    # If the files have the same $Id, delete the one in temproot so the
1100    # user will have less to wade through if files are left to merge by hand.
1101    #
1102    ID1=`grep "[$]${ID_TAG}:" ${DESTDIR}${COMPFILE#.} 2>/dev/null`
1103    ID2=`grep "[$]${ID_TAG}:" ${COMPFILE} 2>/dev/null` || ID2=none
1104
1105    case "${ID2}" in
1106    "${ID1}")
1107      echo " *** Temp ${COMPFILE} and installed have the same Id, deleting"
1108      rm "${COMPFILE}"
1109      ;;
1110    esac
1111    ;;
1112  esac
1113
1114  # If the file is still here either because the $Ids are different, the
1115  # file doesn't have an $Id, or we're using STRICT mode; look at the diff.
1116  #
1117  if [ -f "${COMPFILE}" ]; then
1118
1119    # Do an absolute diff first to see if the files are actually different.
1120    # If they're not different, delete the one in temproot.
1121    #
1122    if diff -q ${DIFF_OPTIONS} "${DESTDIR}${COMPFILE#.}" "${COMPFILE}" > \
1123      /dev/null 2>&1; then
1124      echo " *** Temp ${COMPFILE} and installed are the same, deleting"
1125      rm "${COMPFILE}"
1126    else
1127      # Ok, the files are different, so show the user where they differ.
1128      # Use user's choice of diff methods; and user's pager if they have one.
1129      # Use more if not.
1130      # Use unified diffs by default.  Context diffs give me a headache. :)
1131      #
1132      # If the user chose the -F option, test for that before proceeding
1133      #
1134      if [ -n "$FREEBSD_ID" ]; then
1135        if diff -q -I'[$]FreeBSD.*[$]' "${DESTDIR}${COMPFILE#.}" "${COMPFILE}" > \
1136            /dev/null 2>&1; then
1137          if mm_install "${COMPFILE}"; then
1138            echo "*** Updated revision control Id for ${DESTDIR}${COMPFILE#.}"
1139          else
1140            echo "*** Problem installing ${COMPFILE}, it will remain to merge by hand later"
1141          fi
1142          continue
1143        fi
1144      fi
1145      case "${AUTO_RUN}" in
1146      '')
1147        # prompt user to install/delete/merge changes
1148        diff_loop
1149        ;;
1150      *)
1151        # If this is an auto run, make it official
1152        echo "   *** ${COMPFILE} will remain for your consideration"
1153        ;;
1154      esac # Auto run test
1155    fi # Yes, the files are different
1156  fi # Yes, the file still remains to be checked
1157done # This is for the for way up there at the beginning of the comparison
1158
1159echo ''
1160echo "*** Comparison complete"
1161
1162if [ -s "${MTREENEW}" ]; then
1163  echo "*** Saving mtree database for future upgrades"
1164  test -e "${MTREEFILE}" && unlink ${MTREEFILE}
1165  mv ${MTREENEW} ${MTREEFILE}
1166fi
1167
1168echo ''
1169
1170TEST_FOR_FILES=`find ${TEMPROOT} -type f -size +0 2>/dev/null`
1171if [ -n "${TEST_FOR_FILES}" ]; then
1172  echo "*** Files that remain for you to merge by hand:"
1173  find "${TEMPROOT}" -type f -size +0 | sort
1174  echo ''
1175
1176  case "${AUTO_RUN}" in
1177  '')
1178    echo -n "Do you wish to delete what is left of ${TEMPROOT}? [no] "
1179    read DEL_TEMPROOT
1180    case "${DEL_TEMPROOT}" in
1181    [yY]*)
1182      delete_temproot
1183      ;;
1184    *)
1185      echo " *** ${TEMPROOT} will remain"
1186      ;;
1187    esac
1188    ;;
1189  *) ;;
1190  esac
1191else
1192  echo "*** ${TEMPROOT} is empty, deleting"
1193  delete_temproot
1194fi
1195
1196case "${AUTO_INSTALLED_FILES}" in
1197'') ;;
1198*)
1199  case "${AUTO_RUN}" in
1200  '')
1201    (
1202      echo ''
1203      echo '*** You chose the automatic install option for files that did not'
1204      echo '    exist on your system.  The following were installed for you:'
1205      echo "${AUTO_INSTALLED_FILES}"
1206    ) | ${PAGER}
1207    ;;
1208  *)
1209    echo ''
1210    echo '*** You chose the automatic install option for files that did not'
1211    echo '    exist on your system.  The following were installed for you:'
1212    echo "${AUTO_INSTALLED_FILES}"
1213    ;;
1214  esac
1215  ;;
1216esac
1217
1218case "${AUTO_UPGRADED_FILES}" in
1219'') ;;
1220*)
1221  case "${AUTO_RUN}" in
1222  '')
1223    (
1224      echo ''
1225      echo '*** You chose the automatic upgrade option for files that you did'
1226      echo '    not alter on your system.  The following were upgraded for you:'
1227      echo "${AUTO_UPGRADED_FILES}"
1228    ) | ${PAGER}
1229    ;;
1230  *)
1231    echo ''
1232    echo '*** You chose the automatic upgrade option for files that you did'
1233    echo '    not alter on your system.  The following were upgraded for you:'
1234    echo "${AUTO_UPGRADED_FILES}"
1235    ;;
1236  esac
1237  ;;
1238esac
1239
1240run_it_now () {
1241  [ -n "$AUTO_RUN" ] && return
1242
1243  local answer
1244
1245  echo ''
1246  while : ; do
1247    if [ "$RUN_UPDATES" = always ]; then
1248      answer=y
1249    elif [ "$RUN_UPDATES" = never ]; then
1250      answer=n
1251    else
1252      echo -n '    Would you like to run it now? y or n [n] '
1253      read answer
1254    fi
1255
1256    case "$answer" in
1257    y)
1258      echo "    Running ${1}"
1259      echo ''
1260      eval "${1}"
1261      return
1262      ;;
1263    ''|n)
1264      if [ ! "$RUN_UPDATES" = never ]; then
1265        echo ''
1266        echo "       *** Cancelled"
1267        echo ''
1268      fi
1269      echo "    Make sure to run ${1} yourself"
1270      return
1271      ;;
1272    *)
1273      echo ''
1274      echo "       *** Sorry, I do not understand your answer (${answer})"
1275      echo ''
1276    esac
1277  done
1278}
1279
1280case "${NEED_NEWALIASES}" in
1281'') ;;
1282*)
1283  echo ''
1284  if [ -n "${DESTDIR}" ]; then
1285    echo "*** You installed a new aliases file into ${DESTDIR}/etc/mail, but"
1286    echo "    the newaliases command is limited to the directories configured"
1287    echo "    in sendmail.cf.  Make sure to create your aliases database by"
1288    echo "    hand when your sendmail configuration is done."
1289  else
1290    echo "*** You installed a new aliases file, so make sure that you run"
1291    echo "    '/usr/bin/newaliases' to rebuild your aliases database"
1292    run_it_now '/usr/bin/newaliases'
1293  fi
1294  ;;
1295esac
1296
1297case "${NEED_CAP_MKDB}" in
1298'') ;;
1299*)
1300  echo ''
1301  echo "*** You installed a login.conf file, so make sure that you run"
1302  echo "    '/usr/bin/cap_mkdb ${DESTDIR}/etc/login.conf'"
1303  echo "     to rebuild your login.conf database"
1304  run_it_now "/usr/bin/cap_mkdb ${DESTDIR}/etc/login.conf"
1305  ;;
1306esac
1307
1308case "${NEED_SERVICES_MKDB}" in
1309'') ;;
1310*)
1311  echo ''
1312  echo "*** You installed a services file, so make sure that you run"
1313  echo "    '/usr/sbin/services_mkdb -q -o ${DESTDIR}/var/db/services.db ${DESTDIR}/etc/services'"
1314  echo "     to rebuild your services database"
1315  run_it_now "/usr/sbin/services_mkdb -q -o ${DESTDIR}/var/db/services.db ${DESTDIR}/etc/services"
1316  ;;
1317esac
1318
1319case "${NEED_PWD_MKDB}" in
1320'') ;;
1321*)
1322  echo ''
1323  echo "*** You installed a new master.passwd file, so make sure that you run"
1324  if [ -n "${DESTDIR}" ]; then
1325    echo "    '/usr/sbin/pwd_mkdb -d ${DESTDIR}/etc -p ${DESTDIR}/etc/master.passwd'"
1326    echo "    to rebuild your password files"
1327    run_it_now "/usr/sbin/pwd_mkdb -d ${DESTDIR}/etc -p ${DESTDIR}/etc/master.passwd"
1328  else
1329    echo "    '/usr/sbin/pwd_mkdb -p /etc/master.passwd'"
1330    echo "     to rebuild your password files"
1331    run_it_now '/usr/sbin/pwd_mkdb -p /etc/master.passwd'
1332  fi
1333  ;;
1334esac
1335
1336if [ -e "${DESTDIR}/etc/localtime" -a ! -L "${DESTDIR}/etc/localtime" -a -z "${PRE_WORLD}" ]; then	# Ignore if TZ == UTC
1337  echo ''
1338  [ -n "${DESTDIR}" ] && tzs_args="-C ${DESTDIR}"
1339  if [ -f "${DESTDIR}/var/db/zoneinfo" ]; then
1340    echo "*** Reinstalling `cat ${DESTDIR}/var/db/zoneinfo` as ${DESTDIR}/etc/localtime"
1341    tzsetup $tzs_args -r
1342  else
1343    echo "*** There is no ${DESTDIR}/var/db/zoneinfo file to update ${DESTDIR}/etc/localtime."
1344    echo '    You should run tzsetup'
1345    run_it_now "tzsetup $tzs_args"
1346  fi
1347fi
1348
1349echo ''
1350
1351if [ -r "${MM_EXIT_SCRIPT}" ]; then
1352  . "${MM_EXIT_SCRIPT}"
1353fi
1354
1355case "${COMP_CONFS}" in
1356'') ;;
1357*)
1358  . ${DESTDIR}/etc/defaults/rc.conf
1359
1360  (echo ''
1361  echo "*** Comparing conf files: ${rc_conf_files}"
1362
1363  for CONF_FILE in ${rc_conf_files}; do
1364    if [ -r "${DESTDIR}${CONF_FILE}" ]; then
1365      echo ''
1366      echo "*** From ${DESTDIR}${CONF_FILE}"
1367      echo "*** From ${DESTDIR}/etc/defaults/rc.conf"
1368
1369      for RC_CONF_VAR in `grep -i ^[a-z] ${DESTDIR}${CONF_FILE} |
1370        cut -d '=' -f 1`; do
1371        echo ''
1372        grep -w ^${RC_CONF_VAR} ${DESTDIR}${CONF_FILE}
1373        grep -w ^${RC_CONF_VAR} ${DESTDIR}/etc/defaults/rc.conf ||
1374          echo ' * No default variable with this name'
1375      done
1376    fi
1377  done) | ${PAGER}
1378  echo ''
1379  ;;
1380esac
1381
1382if [ -n "${PRESERVE_FILES}" ]; then
1383  find -d $PRESERVE_FILES_DIR -type d -empty -delete 2>/dev/null
1384  rmdir $PRESERVE_FILES_DIR 2>/dev/null
1385fi
1386
1387exit 0
1388
1389#~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
1390
1391#  Copyright (c) 1998-2012 Douglas Barton
1392#  All rights reserved.
1393#
1394#  Redistribution and use in source and binary forms, with or without
1395#  modification, are permitted provided that the following conditions
1396#  are met:
1397#  1. Redistributions of source code must retain the above copyright
1398#     notice, this list of conditions and the following disclaimer.
1399#  2. Redistributions in binary form must reproduce the above copyright
1400#     notice, this list of conditions and the following disclaimer in the
1401#     documentation and/or other materials provided with the distribution.
1402#
1403#  THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
1404#  ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
1405#  IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
1406#  ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
1407#  FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
1408#  DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
1409#  OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
1410#  HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
1411#  LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
1412#  OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
1413#  SUCH DAMAGE.
1414