usr.sbin/mergemaster/mergemaster.sh

   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 1998-2004 Douglas Barton
   9 # DougB@FreeBSD.org
  10
  11 # $FreeBSD$
  12
  13 PATH=/bin:/usr/bin:/usr/sbin
  14
  15 display_usage () {
  16   VERSION_NUMBER=`grep "[$]FreeBSD:" $0 | cut -d ' ' -f 4`
  17   echo "mergemaster version ${VERSION_NUMBER}"
  18   echo 'Usage: mergemaster [-scrvahipCP] [-m /path]'
  19   echo '         [-t /path] [-d] [-u N] [-w N] [-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 '  -C  Compare local rc.conf variables to the defaults'
  30   echo '  -P  Preserve files that are overwritten'
  31   echo "  -m /path/directory  Specify location of source to do the make in"
  32   echo "  -t /path/directory  Specify temp root directory"
  33   echo "  -d  Add date and time to directory name (e.g., /var/tmp/temproot.`date +%m%d.%H.%M`)"
  34   echo "  -u N  Specify a numeric umask"
  35   echo "  -w N  Specify a screen width in columns to sdiff"
  36   echo "  -A architecture  Alternative architecture name to pass to make"
  37   echo '  -D /path/directory  Specify the destination directory to install files to'
  38   echo "  -U Attempt to auto upgrade files that have not been user modified."
  39   echo ''
  40 }
  41
  42 display_help () {
  43   echo "* To specify a directory other than /var/tmp/temproot for the"
  44   echo "  temporary root environment, use -t /path/to/temp/root"
  45   echo "* The -w option takes a number as an argument for the column width"
  46   echo "  of the screen.  The default is 80."
  47   echo '* The -a option causes mergemaster to run without prompting.'
  48 }
  49
  50 # Loop allowing the user to use sdiff to merge files and display the merged
  51 # file.
  52 merge_loop () {
  53   case "${VERBOSE}" in
  54   '') ;;
  55   *)
  56       echo "   *** Type h at the sdiff prompt (%) to get usage help"
  57       ;;
  58   esac
  59   echo ''
  60   MERGE_AGAIN=yes
  61   while [ "${MERGE_AGAIN}" = "yes" ]; do
  62     # Prime file.merged so we don't blat the owner/group id's
  63     cp -p "${COMPFILE}" "${COMPFILE}.merged"
  64     sdiff -o "${COMPFILE}.merged" --text --suppress-common-lines \
  65       --width=${SCREEN_WIDTH:-80} "${DESTDIR}${COMPFILE#.}" "${COMPFILE}"
  66     INSTALL_MERGED=V
  67     while [ "${INSTALL_MERGED}" = "v" -o "${INSTALL_MERGED}" = "V" ]; do
  68       echo ''
  69       echo "  Use 'i' to install merged file"
  70       echo "  Use 'r' to re-do the merge"
  71       echo "  Use 'v' to view the merged file"
  72       echo "  Default is to leave the temporary file to deal with by hand"
  73       echo ''
  74       echo -n "    *** How should I deal with the merged file? [Leave it for later] "
  75       read INSTALL_MERGED
  76
  77       case "${INSTALL_MERGED}" in
  78       [iI])
  79         mv "${COMPFILE}.merged" "${COMPFILE}"
  80         echo ''
  81         if mm_install "${COMPFILE}"; then
  82           echo "     *** Merged version of ${COMPFILE} installed successfully"
  83         else
  84           echo "     *** Problem installing ${COMPFILE}, it will remain to merge by hand later"
  85         fi
  86         unset MERGE_AGAIN
  87         ;;
  88       [rR])
  89         rm "${COMPFILE}.merged"
  90         ;;
  91       [vV])
  92         ${PAGER} "${COMPFILE}.merged"
  93         ;;
  94       '')
  95         echo "   *** ${COMPFILE} will remain for your consideration"
  96         unset MERGE_AGAIN
  97         ;;
  98       *)
  99         echo "invalid choice: ${INSTALL_MERGED}"
 100         INSTALL_MERGED=V
 101         ;;
 102       esac
 103     done
 104   done
 105 }
 106
 107 # Loop showing user differences between files, allow merge, skip or install
 108 # options
 109 diff_loop () {
 110
 111   HANDLE_COMPFILE=v
 112
 113   while [ "${HANDLE_COMPFILE}" = "v" -o "${HANDLE_COMPFILE}" = "V" -o \
 114     "${HANDLE_COMPFILE}" = "NOT V" ]; do
 115     if [ -f "${DESTDIR}${COMPFILE#.}" -a -f "${COMPFILE}" ]; then
 116       if [ -n "${AUTO_UPGRADE}" ]; then
 117         if echo "${CHANGED}" | grep -qsv ${DESTDIR}${COMPFILE#.}; then
 118           echo ''
 119           echo "  *** ${COMPFILE} has not been user modified."
 120           echo ''
 121
 122           if mm_install "${COMPFILE}"; then
 123             echo "   *** ${COMPFILE} upgraded successfully"
 124             echo ''
 125             # Make the list print one file per line
 126             AUTO_UPGRADED_FILES="${AUTO_UPGRADED_FILES}      ${DESTDIR}${COMPFILE#.}
 127 "
 128           else
 129           echo "   *** Problem upgrading ${COMPFILE}, it will remain to merge by hand"
 130           fi
 131           return
 132         fi
 133       fi
 134       if [ "${HANDLE_COMPFILE}" = "v" -o "${HANDLE_COMPFILE}" = "V" ]; then
 135         echo ''
 136         echo '   ======================================================================   '
 137         echo ''
 138         (
 139           echo "  *** Displaying differences between ${COMPFILE} and installed version:"
 140           echo ''
 141           diff ${DIFF_FLAG} ${DIFF_OPTIONS} "${DESTDIR}${COMPFILE#.}" "${COMPFILE}"
 142         ) | ${PAGER}
 143         echo ''
 144       fi
 145     else
 146       echo ''
 147       echo "  *** There is no installed version of ${COMPFILE}"
 148       echo ''
 149       case "${AUTO_INSTALL}" in
 150       [Yy][Ee][Ss])
 151         echo ''
 152         if mm_install "${COMPFILE}"; then
 153           echo "   *** ${COMPFILE} installed successfully"
 154           echo ''
 155           # Make the list print one file per line
 156           AUTO_INSTALLED_FILES="${AUTO_INSTALLED_FILES}      ${DESTDIR}${COMPFILE#.}
 157 "
 158         else
 159           echo "   *** Problem installing ${COMPFILE}, it will remain to merge by hand"
 160         fi
 161         return
 162         ;;
 163       *)
 164         NO_INSTALLED=yes
 165         ;;
 166       esac
 167     fi
 168
 169     echo "  Use 'd' to delete the temporary ${COMPFILE}"
 170     echo "  Use 'i' to install the temporary ${COMPFILE}"
 171     case "${NO_INSTALLED}" in
 172     '')
 173       echo "  Use 'm' to merge the temporary and installed versions"
 174       echo "  Use 'v' to view the diff results again"
 175       ;;
 176     esac
 177     echo ''
 178     echo "  Default is to leave the temporary file to deal with by hand"
 179     echo ''
 180     echo -n "How should I deal with this? [Leave it for later] "
 181     read HANDLE_COMPFILE
 182
 183     case "${HANDLE_COMPFILE}" in
 184     [dD])
 185       rm "${COMPFILE}"
 186       echo ''
 187       echo "   *** Deleting ${COMPFILE}"
 188       ;;
 189     [iI])
 190       echo ''
 191       if mm_install "${COMPFILE}"; then
 192         echo "   *** ${COMPFILE} installed successfully"
 193       else
 194         echo "   *** Problem installing ${COMPFILE}, it will remain to merge by hand"
 195       fi
 196       ;;
 197     [mM])
 198       case "${NO_INSTALLED}" in
 199       '')
 200         # interact with user to merge files
 201         merge_loop
 202         ;;
 203       *)
 204         echo ''
 205         echo "   *** There is no installed version of ${COMPFILE}"
 206         echo ''
 207         HANDLE_COMPFILE="NOT V"
 208         ;;
 209       esac # End of "No installed version of file but user selected merge" test
 210       ;;
 211     [vV])
 212       continue
 213       ;;
 214     '')
 215       echo ''
 216       echo "   *** ${COMPFILE} will remain for your consideration"
 217       ;;
 218     *)
 219       # invalid choice, show menu again.
 220       echo "invalid choice: ${HANDLE_COMPFILE}"
 221       echo ''
 222       HANDLE_COMPFILE="NOT V"
 223       continue
 224       ;;
 225     esac  # End of "How to handle files that are different"
 226   done
 227   unset NO_INSTALLED
 228   echo ''
 229   case "${VERBOSE}" in
 230   '') ;;
 231   *)
 232     sleep 3
 233     ;;
 234   esac
 235 }
 236
 237 press_to_continue () {
 238   local DISCARD
 239   echo -n ' *** Press the [Enter] or [Return] key to continue '
 240   read DISCARD
 241 }
 242
 243 # Set the default path for the temporary root environment
 244 #
 245 TEMPROOT='/var/tmp/temproot'
 246
 247 # Assign the location of the mtree database
 248 #
 249 MTREEDB='/var/db/mergemaster.mtree'
 250
 251 # Read /etc/mergemaster.rc first so the one in $HOME can override
 252 #
 253 if [ -r /etc/mergemaster.rc ]; then
 254   . /etc/mergemaster.rc
 255 fi
 256
 257 # Read .mergemasterrc before command line so CLI can override
 258 #
 259 if [ -r "$HOME/.mergemasterrc" ]; then
 260   . "$HOME/.mergemasterrc"
 261 fi
 262
 263 # Check the command line options
 264 #
 265 while getopts ":ascrvhipCPm:t:du:w:D:A:U" COMMAND_LINE_ARGUMENT ; do
 266   case "${COMMAND_LINE_ARGUMENT}" in
 267   A)
 268     ARCHSTRING='MACHINE_ARCH='${OPTARG}
 269     ;;
 270   U)
 271     AUTO_UPGRADE=yes
 272     ;;
 273   s)
 274     STRICT=yes
 275     unset DIFF_OPTIONS
 276     ;;
 277   c)
 278     DIFF_FLAG='-c'
 279     ;;
 280   r)
 281     RERUN=yes
 282     ;;
 283   v)
 284     case "${AUTO_RUN}" in
 285     '') VERBOSE=yes ;;
 286     esac
 287     ;;
 288   a)
 289     AUTO_RUN=yes
 290     unset VERBOSE
 291     ;;
 292   h)
 293     display_usage
 294     display_help
 295     exit 0
 296     ;;
 297   i)
 298     AUTO_INSTALL=yes
 299     ;;
 300   C)
 301     COMP_CONFS=yes
 302     ;;
 303   P)
 304     PRESERVE_FILES=yes
 305     ;;
 306   p)
 307     PRE_WORLD=yes
 308     unset COMP_CONFS
 309     unset AUTO_RUN
 310     ;;
 311   m)
 312     SOURCEDIR=${OPTARG}
 313     ;;
 314   t)
 315     TEMPROOT=${OPTARG}
 316     ;;
 317   d)
 318     TEMPROOT=${TEMPROOT}.`date +%m%d.%H.%M`
 319     ;;
 320   u)
 321     NEW_UMASK=${OPTARG}
 322     ;;
 323   w)
 324     SCREEN_WIDTH=${OPTARG}
 325     ;;
 326   D)
 327     DESTDIR=${OPTARG}
 328     ;;
 329   *)
 330     display_usage
 331     exit 1
 332     ;;
 333   esac
 334 done
 335
 336 # Don't force the user to set this in the mergemaster rc file
 337 if [ -n "${PRESERVE_FILES}" -a -z "${PRESERVE_FILES_DIR}" ]; then
 338   PRESERVE_FILES_DIR=/var/tmp/mergemaster/preserved-files-`date +%y%m%d-%H%M%S`
 339 fi
 340
 341 # Check the for the mtree database in DESTDIR.
 342 if [ ! -f ${DESTDIR}${MTREEDB} ]; then
 343   echo "*** Unable to find mtree database. Skipping auto-upgrade."
 344   unset AUTO_UPGRADE
 345 fi
 346
 347 echo ''
 348
 349 # If the user has a pager defined, make sure we can run it
 350 #
 351 case "${DONT_CHECK_PAGER}" in
 352 '')
 353   while ! type "${PAGER%% *}" >/dev/null && [ -n "${PAGER}" ]; do
 354     echo " *** Your PAGER environment variable specifies '${PAGER}', but"
 355     echo "     due to the limited PATH that I use for security reasons,"
 356     echo "     I cannot execute it.  So, what would you like to do?"
 357     echo ''
 358     echo "  Use 'e' to exit mergemaster and fix your PAGER variable"
 359     if [ -x /usr/bin/less -o -x /usr/local/bin/less ]; then
 360     echo "  Use 'l' to set PAGER to 'less' for this run"
 361     fi
 362     echo "  Use 'm' to use plain old 'more' as your PAGER for this run"
 363     echo ''
 364     echo "  Default is to use plain old 'more' "
 365     echo ''
 366     echo -n "What should I do? [Use 'more'] "
 367     read FIXPAGER
 368
 369     case "${FIXPAGER}" in
 370     [eE])
 371        exit 0
 372        ;;
 373     [lL])
 374        if [ -x /usr/bin/less ]; then
 375          PAGER=/usr/bin/less
 376        elif [ -x /usr/local/bin/less ]; then
 377          PAGER=/usr/local/bin/less
 378        else
 379          echo ''
 380          echo " *** Fatal Error:"
 381          echo "     You asked to use 'less' as your pager, but I can't"
 382          echo "     find it in /usr/bin or /usr/local/bin"
 383          exit 1
 384        fi
 385        ;;
 386     [mM]|'')
 387        PAGER=more
 388        ;;
 389     *)
 390        echo ''
 391        echo "invalid choice: ${FIXPAGER}"
 392     esac
 393     echo ''
 394   done
 395   ;;
 396 esac
 397
 398 # If user has a pager defined, or got assigned one above, use it.
 399 # If not, use more.
 400 #
 401 PAGER=${PAGER:-more}
 402
 403 if [ -n "${VERBOSE}" -a ! "${PAGER}" = "more" ]; then
 404   echo " *** You have ${PAGER} defined as your pager so we will use that"
 405   echo ''
 406   sleep 3
 407 fi
 408
 409 # Assign the diff flag once so we will not have to keep testing it
 410 #
 411 DIFF_FLAG=${DIFF_FLAG:--u}
 412
 413 # Assign the source directory
 414 #
 415 SOURCEDIR=${SOURCEDIR:-/usr/src/etc}
 416
 417 # Check DESTDIR against the mergemaster mtree database to see what
 418 # files the user changed from the reference files.
 419 #
 420 CHANGED=
 421 if [ -n "${AUTO_UPGRADE}" -a -f "${DESTDIR}${MTREEDB}" ]; then
 422         for file in `mtree -eq -f ${DESTDIR}${MTREEDB} -p ${DESTDIR}/ \
 423                 2>/dev/null | awk '($2 == "changed") {print $1}'`; do
 424                 if [ -f "${DESTDIR}/$file" ]; then
 425                         CHANGED="${CHANGED} ${DESTDIR}/$file"
 426                 fi
 427         done
 428 fi
 429
 430 # Check the width of the user's terminal
 431 #
 432 if [ -t 0 ]; then
 433   w=`tput columns`
 434   case "${w}" in
 435   0|'') ;; # No-op, since the input is not valid
 436   *)
 437     case "${SCREEN_WIDTH}" in
 438     '') SCREEN_WIDTH="${w}" ;;
 439     "${w}") ;; # No-op, since they are the same
 440     *)
 441       echo -n "*** You entered ${SCREEN_WIDTH} as your screen width, but stty "
 442       echo "thinks it is ${w}."
 443       echo ''
 444       echo -n "What would you like to use? [${w}] "
 445       read SCREEN_WIDTH
 446       case "${SCREEN_WIDTH}" in
 447       '') SCREEN_WIDTH="${w}" ;;
 448       esac
 449       ;;
 450     esac
 451   esac
 452 fi
 453
 454 # Define what CVS $Id tag to look for to aid portability.
 455 #
 456 CVS_ID_TAG=FreeBSD
 457
 458 delete_temproot () {
 459   rm -rf "${TEMPROOT}" 2>/dev/null
 460   chflags -R 0 "${TEMPROOT}" 2>/dev/null
 461   rm -rf "${TEMPROOT}" || exit 1
 462 }
 463
 464 case "${RERUN}" in
 465 '')
 466   # Set up the loop to test for the existence of the
 467   # temp root directory.
 468   #
 469   TEST_TEMP_ROOT=yes
 470   while [ "${TEST_TEMP_ROOT}" = "yes" ]; do
 471     if [ -d "${TEMPROOT}" ]; then
 472       echo "*** The directory specified for the temporary root environment,"
 473       echo "    ${TEMPROOT}, exists.  This can be a security risk if untrusted"
 474       echo "    users have access to the system."
 475       echo ''
 476       case "${AUTO_RUN}" in
 477       '')
 478         echo "  Use 'd' to delete the old ${TEMPROOT} and continue"
 479         echo "  Use 't' to select a new temporary root directory"
 480         echo "  Use 'e' to exit mergemaster"
 481         echo ''
 482         echo "  Default is to use ${TEMPROOT} as is"
 483         echo ''
 484         echo -n "How should I deal with this? [Use the existing ${TEMPROOT}] "
 485         read DELORNOT
 486
 487         case "${DELORNOT}" in
 488         [dD])
 489           echo ''
 490           echo "   *** Deleting the old ${TEMPROOT}"
 491           echo ''
 492           delete_temproot || exit 1
 493           unset TEST_TEMP_ROOT
 494           ;;
 495         [tT])
 496           echo "   *** Enter new directory name for temporary root environment"
 497           read TEMPROOT
 498           ;;
 499         [eE])
 500           exit 0
 501           ;;
 502         '')
 503           echo ''
 504           echo "   *** Leaving ${TEMPROOT} intact"
 505           echo ''
 506           unset TEST_TEMP_ROOT
 507           ;;
 508         *)
 509           echo ''
 510           echo "invalid choice: ${DELORNOT}"
 511           echo ''
 512           ;;
 513         esac
 514         ;;
 515       *)
 516         # If this is an auto-run, try a hopefully safe alternative then
 517         # re-test anyway.
 518         TEMPROOT=/var/tmp/temproot.`date +%m%d.%H.%M.%S`
 519         ;;
 520       esac
 521     else
 522       unset TEST_TEMP_ROOT
 523     fi
 524   done
 525
 526   echo "*** Creating the temporary root environment in ${TEMPROOT}"
 527
 528   if mkdir -p "${TEMPROOT}"; then
 529     echo " *** ${TEMPROOT} ready for use"
 530   fi
 531
 532   if [ ! -d "${TEMPROOT}" ]; then
 533     echo ''
 534     echo "  *** FATAL ERROR: Cannot create ${TEMPROOT}"
 535     echo ''
 536     exit 1
 537   fi
 538
 539   echo " *** Creating and populating directory structure in ${TEMPROOT}"
 540   echo ''
 541
 542   case "${VERBOSE}" in
 543   '') ;;
 544   *)
 545     press_to_continue
 546     ;;
 547   esac
 548
 549   case "${PRE_WORLD}" in
 550   '')
 551     { cd ${SOURCEDIR} &&
 552       case "${DESTDIR}" in
 553       '') ;;
 554       *)
 555       make DESTDIR=${DESTDIR} ${ARCHSTRING} distrib-dirs
 556         ;;
 557       esac
 558       make DESTDIR=${TEMPROOT} ${ARCHSTRING} distrib-dirs &&
 559       MAKEOBJDIRPREFIX=${TEMPROOT}/usr/obj make ${ARCHSTRING} obj &&
 560       MAKEOBJDIRPREFIX=${TEMPROOT}/usr/obj make ${ARCHSTRING} all &&
 561       MAKEOBJDIRPREFIX=${TEMPROOT}/usr/obj make ${ARCHSTRING} \
 562           DESTDIR=${TEMPROOT} distribution;} ||
 563     { echo '';
 564      echo "  *** FATAL ERROR: Cannot 'cd' to ${SOURCEDIR} and install files to";
 565       echo "      the temproot environment";
 566       echo '';
 567       exit 1;}
 568     ;;
 569   *)
 570     # Only set up files that are crucial to {build|install}world
 571     { mkdir -p ${TEMPROOT}/etc &&
 572       cp -p ${SOURCEDIR}/master.passwd ${TEMPROOT}/etc &&
 573       cp -p ${SOURCEDIR}/group ${TEMPROOT}/etc;} ||
 574     { echo '';
 575       echo '  *** FATAL ERROR: Cannot copy files to the temproot environment';
 576       echo '';
 577       exit 1;}
 578     ;;
 579   esac
 580
 581   # Doing the inventory and removing files that we don't want to compare only
 582   # makes sense if we are not doing a rerun, since we have no way of knowing
 583   # what happened to the files during previous incarnations.
 584   case "${VERBOSE}" in
 585   '') ;;
 586   *)
 587     echo ''
 588     echo ' *** The following files exist only in the installed version of'
 589     echo "     ${DESTDIR}/etc.  In the vast majority of cases these files"
 590     echo '     are necessary parts of the system and should not be deleted.'
 591     echo '     However because these files are not updated by this process you'
 592     echo '     might want to verify their status before rebooting your system.'
 593     echo ''
 594     press_to_continue
 595     diff -qr ${DESTDIR}/etc ${TEMPROOT}/etc | grep "^Only in ${DESTDIR}/etc" | ${PAGER}
 596     echo ''
 597     press_to_continue
 598     ;;
 599   esac
 600
 601   # Avoid comparing the motd if the user specifies it in .mergemasterrc
 602   case "${IGNORE_MOTD}" in
 603   '') ;;
 604   *) rm -f ${TEMPROOT}/etc/motd
 605      ;;
 606   esac
 607
 608   # Avoid trying to update MAKEDEV if /dev is on a devfs
 609   if /sbin/sysctl vfs.devfs.generation > /dev/null 2>&1 ; then
 610     rm -f ${TEMPROOT}/dev/MAKEDEV ${TEMPROOT}/dev/MAKEDEV.local
 611   fi
 612
 613   ;; # End of the "RERUN" test
 614 esac
 615
 616 # We really don't want to have to deal with files like login.conf.db, pwd.db,
 617 # or spwd.db.  Instead, we want to compare the text versions, and run *_mkdb.
 618 # Prompt the user to do so below, as needed.
 619 #
 620 rm -f ${TEMPROOT}/etc/*.db ${TEMPROOT}/etc/passwd
 621
 622 # We only need to compare things like freebsd.cf once
 623 find ${TEMPROOT}/usr/obj -type f -delete 2>/dev/null
 624
 625 # Delete 0 length files to make the mtree database as small as possible.
 626 find ${TEMPROOT} -type f -size 0 -delete 2>/dev/null
 627
 628 # Build the mtree database in a temporary location.
 629 # TODO: Possibly use mktemp instead for security reasons?
 630 case "${PRE_WORLD}" in
 631 '') mtree -ci -p ${TEMPROOT} -k size,md5digest > ${DESTDIR}${MTREEDB}.new 2>/dev/null
 632     ;;
 633 *) # We don't want to mess with the mtree database on a pre-world run.
 634    ;;
 635 esac
 636
 637 # Get ready to start comparing files
 638
 639 # Check umask if not specified on the command line,
 640 # and we are not doing an autorun
 641 #
 642 if [ -z "${NEW_UMASK}" -a -z "${AUTO_RUN}" ]; then
 643   USER_UMASK=`umask`
 644   case "${USER_UMASK}" in
 645   0022|022) ;;
 646   *)
 647     echo ''
 648     echo " *** Your umask is currently set to ${USER_UMASK}.  By default, this script"
 649     echo "     installs all files with the same user, group and modes that"
 650     echo "     they are created with by ${SOURCEDIR}/Makefile, compared to"
 651     echo "     a umask of 022.  This umask allows world read permission when"
 652     echo "     the file's default permissions have it."
 653     echo ''
 654     echo "     No world permissions can sometimes cause problems.  A umask of"
 655     echo "     022 will restore the default behavior, but is not mandatory."
 656     echo "     /etc/master.passwd is a special case.  Its file permissions"
 657     echo "     will be 600 (rw-------) if installed."
 658     echo ''
 659     echo -n "What umask should I use? [${USER_UMASK}] "
 660     read NEW_UMASK
 661
 662     NEW_UMASK="${NEW_UMASK:-$USER_UMASK}"
 663     ;;
 664   esac
 665   echo ''
 666 fi
 667
 668 CONFIRMED_UMASK=${NEW_UMASK:-0022}
 669
 670 #
 671 # Warn users who still have old rc files
 672 #
 673 for file in atm devfs diskless1 diskless2 network network6 pccard \
 674   serial syscons sysctl alpha amd64 i386 ia64 sparc64; do
 675   if [ -f "${DESTDIR}/etc/rc.${file}" ]; then
 676     OLD_RC_PRESENT=1
 677     break
 678   fi
 679 done
 680
 681 case "${OLD_RC_PRESENT}" in
 682 1)
 683   echo ''
 684   echo " *** There are elements of the old rc system in ${DESTDIR}/etc/."
 685   echo ''
 686   echo '     While these scripts will not hurt anything, they are not'
 687   echo '     functional on an up to date system, and can be removed.'
 688   echo ''
 689
 690   case "${AUTO_RUN}" in
 691   '')
 692     echo -n 'Move these files to /var/tmp/mergemaster/old_rc? [yes] '
 693     read MOVE_OLD_RC
 694
 695     case "${MOVE_OLD_RC}" in
 696     [nN]*) ;;
 697     *)
 698       mkdir -p /var/tmp/mergemaster/old_rc
 699         for file in atm devfs diskless1 diskless2 network network6 pccard \
 700           serial syscons sysctl alpha amd64 i386 ia64 sparc64; do
 701           if [ -f "${DESTDIR}/etc/rc.${file}" ]; then
 702             mv ${DESTDIR}/etc/rc.${file} /var/tmp/mergemaster/old_rc/
 703           fi
 704         done
 705       echo '  The files have been moved'
 706       press_to_continue
 707       ;;
 708     esac
 709     ;;
 710   *) ;;
 711   esac
 712 esac
 713
 714 # Use the umask/mode information to install the files
 715 # Create directories as needed
 716 #
 717 do_install_and_rm () {
 718   case "${PRESERVE_FILES}" in
 719   [Yy][Ee][Ss])
 720     if [ -f "${3}/${2##*/}" ]; then
 721       mkdir -p ${PRESERVE_FILES_DIR}/${2%/*}
 722       cp ${3}/${2##*/} ${PRESERVE_FILES_DIR}/${2%/*}
 723     fi
 724     ;;
 725   esac
 726
 727   install -m "${1}" "${2}" "${3}" &&
 728   rm -f "${2}"
 729 }
 730
 731 # 4095 = "obase=10;ibase=8;07777" | bc
 732 find_mode () {
 733   local OCTAL
 734   OCTAL=$(( ~$(echo "obase=10; ibase=8; ${CONFIRMED_UMASK}" | bc) & 4095 &
 735     $(echo "obase=10; ibase=8; $(stat -f "%OMp%OLp" ${1})" | bc) ))
 736   printf "%04o\n" ${OCTAL}
 737 }
 738
 739 mm_install () {
 740   local INSTALL_DIR
 741   INSTALL_DIR=${1#.}
 742   INSTALL_DIR=${INSTALL_DIR%/*}
 743
 744   case "${INSTALL_DIR}" in
 745   '')
 746     INSTALL_DIR=/
 747     ;;
 748   esac
 749
 750   if [ -n "${DESTDIR}${INSTALL_DIR}" -a ! -d "${DESTDIR}${INSTALL_DIR}" ]; then
 751     DIR_MODE=`find_mode "${TEMPROOT}/${INSTALL_DIR}"`
 752     install -d -o root -g wheel -m "${DIR_MODE}" "${DESTDIR}${INSTALL_DIR}"
 753   fi
 754
 755   FILE_MODE=`find_mode "${1}"`
 756
 757   if [ ! -x "${1}" ]; then
 758     case "${1#.}" in
 759     /etc/mail/aliases)
 760       NEED_NEWALIASES=yes
 761       ;;
 762     /etc/login.conf)
 763       NEED_CAP_MKDB=yes
 764       ;;
 765     /etc/master.passwd)
 766       do_install_and_rm 600 "${1}" "${DESTDIR}${INSTALL_DIR}"
 767       NEED_PWD_MKDB=yes
 768       DONT_INSTALL=yes
 769       ;;
 770     /.cshrc | /.profile)
 771     case "${AUTO_INSTALL}" in
 772     '')
 773       case "${LINK_EXPLAINED}" in
 774       '')
 775         echo "   *** Historically BSD derived systems have had a"
 776         echo "       hard link from /.cshrc and /.profile to"
 777         echo "       their namesakes in /root.  Please indicate"
 778         echo "       your preference below for bringing your"
 779         echo "       installed files up to date."
 780         echo ''
 781         LINK_EXPLAINED=yes
 782         ;;
 783       esac
 784
 785       echo "   Use 'd' to delete the temporary ${COMPFILE}"
 786       echo "   Use 'l' to delete the existing ${DESTDIR}${COMPFILE#.} and create the link"
 787       echo ''
 788       echo "   Default is to leave the temporary file to deal with by hand"
 789       echo ''
 790       echo -n "  How should I handle ${COMPFILE}? [Leave it to install later] "
 791       read HANDLE_LINK
 792       ;;
 793     *)  # Part of AUTO_INSTALL
 794       HANDLE_LINK=l
 795       ;;
 796     esac
 797
 798       case "${HANDLE_LINK}" in
 799       [dD]*)
 800         rm "${COMPFILE}"
 801         echo ''
 802         echo "   *** Deleting ${COMPFILE}"
 803         ;;
 804       [lL]*)
 805         echo ''
 806         rm -f "${DESTDIR}${COMPFILE#.}"
 807         if ln "${DESTDIR}/root/${COMPFILE##*/}" "${DESTDIR}${COMPFILE#.}"; then
 808           echo "   *** Link from ${DESTDIR}${COMPFILE#.} to ${DESTDIR}/root/${COMPFILE##*/} installed successfully"
 809           rm "${COMPFILE}"
 810         else
 811           echo "   *** Error linking ${DESTDIR}${COMPFILE#.} to ${DESTDIR}/root/${COMPFILE##*/}, ${COMPFILE} will remain to install by hand"
 812         fi
 813         ;;
 814       *)
 815         echo "   *** ${COMPFILE} will remain for your consideration"
 816         ;;
 817       esac
 818       DONT_INSTALL=yes
 819       ;;
 820     esac
 821
 822     case "${DONT_INSTALL}" in
 823     '')
 824       do_install_and_rm "${FILE_MODE}" "${1}" "${DESTDIR}${INSTALL_DIR}"
 825       ;;
 826     *)
 827       unset DONT_INSTALL
 828       ;;
 829     esac
 830   else  # File matched -x
 831     case "${1#.}" in
 832     /dev/MAKEDEV)
 833       NEED_MAKEDEV=yes
 834       ;;
 835     esac
 836     do_install_and_rm "${FILE_MODE}" "${1}" "${DESTDIR}${INSTALL_DIR}"
 837   fi
 838   return $?
 839 }
 840
 841 if [ ! -d "${TEMPROOT}" ]; then
 842         echo "*** FATAL ERROR: The temproot directory (${TEMPROOT})"
 843         echo '                 has disappeared!'
 844         echo ''
 845         exit 1
 846 fi
 847
 848 echo ''
 849 echo "*** Beginning comparison"
 850 echo ''
 851
 852 # Pre-world does not populate /etc/rc.d.
 853 # It is very possible that a previous run would have deleted files in
 854 # ${TEMPROOT}/etc/rc.d, thus creating a lot of false positives.
 855 if [ -z "${PRE_WORLD}" -a -z "${RERUN}" ]; then
 856   echo "   *** Checking ${DESTDIR}/etc/rc.d for stale files"
 857   echo ''
 858   cd "${DESTDIR}/etc/rc.d" &&
 859   for file in *; do
 860     if [ ! -e "${TEMPROOT}/etc/rc.d/${file}" ]; then
 861       STALE_RC_FILES="${STALE_RC_FILES} ${file}"
 862     fi
 863   done
 864   case "${STALE_RC_FILES}" in
 865   ''|' *')
 866     echo '   *** No stale files found'
 867     ;;
 868   *)
 869     echo "   *** The following files exist in ${DESTDIR}/etc/rc.d but not in"
 870     echo "       ${TEMPROOT}/etc/rc.d/:"
 871     echo ''
 872     echo "${STALE_RC_FILES}"
 873     echo ''
 874     echo '       The presence of stale files in this directory can cause the'
 875     echo '       dreaded unpredictable results, and therefore it is highly'
 876     echo '       recommended that you delete them.'
 877     case "${AUTO_RUN}" in
 878     '')
 879       echo ''
 880       echo -n '   *** Delete them now? [n] '
 881       read DELETE_STALE_RC_FILES
 882       case "${DELETE_STALE_RC_FILES}" in
 883       [yY])
 884         echo '      *** Deleting ... '
 885         rm ${STALE_RC_FILES}
 886         echo '                       done.'
 887         ;;
 888       *)
 889         echo '      *** Files will not be deleted'
 890         ;;
 891       esac
 892       sleep 2
 893       ;;
 894     esac
 895     ;;
 896   esac
 897   echo ''
 898 fi
 899
 900 cd "${TEMPROOT}"
 901
 902 if [ -r "${MM_PRE_COMPARE_SCRIPT}" ]; then
 903   . "${MM_PRE_COMPARE_SCRIPT}"
 904 fi
 905
 906 # Using -size +0 avoids uselessly checking the empty log files created
 907 # by ${SOURCEDIR}/Makefile and the device entries in ./dev, but does
 908 # check the scripts in ./dev, as we'd like (assuming no devfs of course).
 909 #
 910 for COMPFILE in `find . -type f -size +0`; do
 911
 912   # First, check to see if the file exists in DESTDIR.  If not, the
 913   # diff_loop function knows how to handle it.
 914   #
 915   if [ ! -e "${DESTDIR}${COMPFILE#.}" ]; then
 916     case "${AUTO_RUN}" in
 917       '')
 918         diff_loop
 919         ;;
 920       *)
 921         case "${AUTO_INSTALL}" in
 922         '')
 923           # If this is an auto run, make it official
 924           echo "   *** ${COMPFILE} will remain for your consideration"
 925           ;;
 926         *)
 927           diff_loop
 928           ;;
 929         esac
 930         ;;
 931     esac # Auto run test
 932     continue
 933   fi
 934
 935   case "${STRICT}" in
 936   '' | [Nn][Oo])
 937     # Compare CVS $Id's first so if the file hasn't been modified
 938     # local changes will be ignored.
 939     # If the files have the same $Id, delete the one in temproot so the
 940     # user will have less to wade through if files are left to merge by hand.
 941     #
 942     CVSID1=`grep "[$]${CVS_ID_TAG}:" ${DESTDIR}${COMPFILE#.} 2>/dev/null`
 943     CVSID2=`grep "[$]${CVS_ID_TAG}:" ${COMPFILE} 2>/dev/null` || CVSID2=none
 944
 945     case "${CVSID2}" in
 946     "${CVSID1}")
 947       echo " *** Temp ${COMPFILE} and installed have the same CVS Id, deleting"
 948       rm "${COMPFILE}"
 949       ;;
 950     esac
 951     ;;
 952   esac
 953
 954   # If the file is still here either because the $Ids are different, the
 955   # file doesn't have an $Id, or we're using STRICT mode; look at the diff.
 956   #
 957   if [ -f "${COMPFILE}" ]; then
 958
 959     # Do an absolute diff first to see if the files are actually different.
 960     # If they're not different, delete the one in temproot.
 961     #
 962     if diff -q ${DIFF_OPTIONS} "${DESTDIR}${COMPFILE#.}" "${COMPFILE}" > \
 963       /dev/null 2>&1; then
 964       echo " *** Temp ${COMPFILE} and installed are the same, deleting"
 965       rm "${COMPFILE}"
 966     else
 967       # Ok, the files are different, so show the user where they differ.
 968       # Use user's choice of diff methods; and user's pager if they have one.
 969       # Use more if not.
 970       # Use unified diffs by default.  Context diffs give me a headache. :)
 971       #
 972       case "${AUTO_RUN}" in
 973       '')
 974         # prompt user to install/delete/merge changes
 975         diff_loop
 976         ;;
 977       *)
 978         # If this is an auto run, make it official
 979         echo "   *** ${COMPFILE} will remain for your consideration"
 980         ;;
 981       esac # Auto run test
 982     fi # Yes, the files are different
 983   fi # Yes, the file still remains to be checked
 984 done # This is for the do way up there at the beginning of the comparison
 985
 986 echo ''
 987 echo "*** Comparison complete"
 988
 989 if [ -f "${DESTDIR}${MTREEDB}.new" ]; then
 990   echo "*** Saving mtree database for future upgrades"
 991   mv -f ${DESTDIR}${MTREEDB}.new ${DESTDIR}${MTREEDB} 2>/dev/null
 992 fi
 993
 994 echo ''
 995
 996 TEST_FOR_FILES=`find ${TEMPROOT} -type f -size +0 2>/dev/null`
 997 if [ -n "${TEST_FOR_FILES}" ]; then
 998   echo "*** Files that remain for you to merge by hand:"
 999   find "${TEMPROOT}" -type f -size +0
1000   echo ''
1001 fi
1002
1003 case "${AUTO_RUN}" in
1004 '')
1005   echo -n "Do you wish to delete what is left of ${TEMPROOT}? [no] "
1006   read DEL_TEMPROOT
1007
1008   case "${DEL_TEMPROOT}" in
1009   [yY]*)
1010     if delete_temproot; then
1011       echo " *** ${TEMPROOT} has been deleted"
1012     else
1013       echo " *** Unable to delete ${TEMPROOT}"
1014     fi
1015     ;;
1016   *)
1017     echo " *** ${TEMPROOT} will remain"
1018     ;;
1019   esac
1020   ;;
1021 *) ;;
1022 esac
1023
1024 case "${AUTO_INSTALLED_FILES}" in
1025 '') ;;
1026 *)
1027   case "${AUTO_RUN}" in
1028   '')
1029     (
1030       echo ''
1031       echo '*** You chose the automatic install option for files that did not'
1032       echo '    exist on your system.  The following were installed for you:'
1033       echo "${AUTO_INSTALLED_FILES}"
1034     ) | ${PAGER}
1035     ;;
1036   *)
1037     echo ''
1038     echo '*** You chose the automatic install option for files that did not'
1039     echo '    exist on your system.  The following were installed for you:'
1040     echo "${AUTO_INSTALLED_FILES}"
1041     ;;
1042   esac
1043   ;;
1044 esac
1045
1046 case "${AUTO_UPGRADED_FILES}" in
1047 '') ;;
1048 *)
1049   case "${AUTO_RUN}" in
1050   '')
1051     (
1052       echo ''
1053       echo '*** You chose the automatic upgrade option for files that you did'
1054       echo '    not alter on your system.  The following were upgraded for you:'
1055       echo "${AUTO_UPGRADED_FILES}"
1056     ) | ${PAGER}
1057     ;;
1058   *)
1059     echo ''
1060     echo '*** You chose the automatic upgrade option for files that you did'
1061     echo '    not alter on your system.  The following were upgraded for you:'
1062     echo "${AUTO_UPGRADED_FILES}"
1063     ;;
1064   esac
1065   ;;
1066 esac
1067
1068 run_it_now () {
1069   case "${AUTO_RUN}" in
1070   '')
1071     unset YES_OR_NO
1072     echo ''
1073     echo -n '    Would you like to run it now? y or n [n] '
1074     read YES_OR_NO
1075
1076     case "${YES_OR_NO}" in
1077     y)
1078       echo "    Running ${1}"
1079       echo ''
1080       eval "${1}"
1081       ;;
1082     ''|n)
1083       echo ''
1084       echo "       *** Cancelled"
1085       echo ''
1086       echo "    Make sure to run ${1} yourself"
1087       ;;
1088     *)
1089       echo ''
1090       echo "       *** Sorry, I do not understand your answer (${YES_OR_NO})"
1091       echo ''
1092       echo "    Make sure to run ${1} yourself"
1093     esac
1094     ;;
1095   *) ;;
1096   esac
1097 }
1098
1099 case "${NEED_MAKEDEV}" in
1100 '') ;;
1101 *)
1102   echo ''
1103   echo "*** You installed a new ${DESTDIR}/dev/MAKEDEV script, so make sure that you run"
1104   echo "    'cd ${DESTDIR}/dev && /bin/sh MAKEDEV all' to rebuild your devices"
1105   run_it_now "cd ${DESTDIR}/dev && /bin/sh MAKEDEV all"
1106   ;;
1107 esac
1108
1109 case "${NEED_NEWALIASES}" in
1110 '') ;;
1111 *)
1112   echo ''
1113   if [ -n "${DESTDIR}" ]; then
1114     echo "*** You installed a new aliases file into ${DESTDIR}/etc/mail, but"
1115     echo "    the newaliases command is limited to the directories configured"
1116     echo "    in sendmail.cf.  Make sure to create your aliases database by"
1117     echo "    hand when your sendmail configuration is done."
1118   else
1119     echo "*** You installed a new aliases file, so make sure that you run"
1120     echo "    '/usr/bin/newaliases' to rebuild your aliases database"
1121     run_it_now '/usr/bin/newaliases'
1122   fi
1123   ;;
1124 esac
1125
1126 case "${NEED_CAP_MKDB}" in
1127 '') ;;
1128 *)
1129   echo ''
1130   echo "*** You installed a login.conf file, so make sure that you run"
1131   echo "    '/usr/bin/cap_mkdb ${DESTDIR}/etc/login.conf'"
1132   echo "     to rebuild your login.conf database"
1133   run_it_now "/usr/bin/cap_mkdb ${DESTDIR}/etc/login.conf"
1134   ;;
1135 esac
1136
1137 case "${NEED_PWD_MKDB}" in
1138 '') ;;
1139 *)
1140   echo ''
1141   echo "*** You installed a new master.passwd file, so make sure that you run"
1142   if [ -n "${DESTDIR}" ]; then
1143     echo "    '/usr/sbin/pwd_mkdb -d ${DESTDIR}/etc -p ${DESTDIR}/etc/master.passwd'"
1144     echo "    to rebuild your password files"
1145     run_it_now "/usr/sbin/pwd_mkdb -d ${DESTDIR}/etc -p ${DESTDIR}/etc/master.passwd"
1146   else
1147     echo "    '/usr/sbin/pwd_mkdb -p /etc/master.passwd'"
1148     echo "     to rebuild your password files"
1149     run_it_now '/usr/sbin/pwd_mkdb -p /etc/master.passwd'
1150   fi
1151   ;;
1152 esac
1153
1154 echo ''
1155
1156 if [ -r "${MM_EXIT_SCRIPT}" ]; then
1157   . "${MM_EXIT_SCRIPT}"
1158 fi
1159
1160 case "${COMP_CONFS}" in
1161 '') ;;
1162 *)
1163   . ${DESTDIR}/etc/defaults/rc.conf
1164
1165   (echo ''
1166   echo "*** Comparing conf files: ${rc_conf_files}"
1167
1168   for CONF_FILE in ${rc_conf_files}; do
1169     if [ -r "${DESTDIR}${CONF_FILE}" ]; then
1170       echo ''
1171       echo "*** From ${DESTDIR}${CONF_FILE}"
1172       echo "*** From ${DESTDIR}/etc/defaults/rc.conf"
1173
1174       for RC_CONF_VAR in `grep -i ^[a-z] ${DESTDIR}${CONF_FILE} |
1175         cut -d '=' -f 1`; do
1176         echo ''
1177         grep -w ^${RC_CONF_VAR} ${DESTDIR}${CONF_FILE}
1178         grep -w ^${RC_CONF_VAR} ${DESTDIR}/etc/defaults/rc.conf ||
1179           echo ' * No default variable with this name'
1180       done
1181     fi
1182   done) | ${PAGER}
1183   echo ''
1184   ;;
1185 esac
1186
1187 case "${PRE_WORLD}" in
1188 '') ;;
1189 *)
1190   MAKE_CONF="${SOURCEDIR%etc}share/examples/etc/make.conf"
1191
1192   (echo ''
1193   echo '*** Comparing make variables'
1194   echo ''
1195   echo "*** From ${DESTDIR}/etc/make.conf"
1196   echo "*** From ${MAKE_CONF}"
1197
1198   for MAKE_VAR in `grep -i ^[a-z] ${DESTDIR}/etc/make.conf | cut -d '=' -f 1`; do
1199     echo ''
1200     grep -w ^${MAKE_VAR} ${DESTDIR}/etc/make.conf
1201     grep -w ^#${MAKE_VAR} ${MAKE_CONF} ||
1202       echo ' * No example variable with this name'
1203   done) | ${PAGER}
1204   ;;
1205 esac
1206
1207 exit 0
1208