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 1998-2003 Douglas Barton
   9 # DougB@FreeBSD.org
  10
  11 # $FreeBSD: src/usr.sbin/mergemaster/mergemaster.sh,v 1.46 2003/05/03 06:35:19 dougb Exp $
  12 # $DragonFly: src/usr.sbin/mergemaster/mergemaster.sh,v 1.6 2004/03/14 13:47:12 eirikn Exp $
  13
  14 PATH=/bin:/usr/bin:/usr/sbin
  15
  16 display_usage () {
  17   VERSION_NUMBER=`grep "[$]DragonFly:" $0 | cut -d ' ' -f 4`
  18   echo "mergemaster version ${VERSION_NUMBER}"
  19   echo 'Usage: mergemaster [-scrvahipCP] [-m /path]'
  20   echo '         [-t /path] [-d] [-u N] [-w N] [-D /path]'
  21   echo "Options:"
  22   echo "  -s  Strict comparison (diff every pair of files)"
  23   echo "  -c  Use context diff instead of unified diff"
  24   echo "  -r  Re-run on a previously cleaned directory (skip temproot creation)"
  25   echo "  -v  Be more verbose about the process, include additional checks"
  26   echo "  -a  Leave all files that differ to merge by hand"
  27   echo "  -h  Display more complete help"
  28   echo '  -i  Automatically install files that do not exist in destination directory'
  29   echo '  -p  Pre-buildworld mode, only compares crucial files'
  30   echo '  -C  Compare local rc.conf variables to the defaults'
  31   echo '  -P  Preserve files that are overwritten'
  32   echo "  -m /path/directory  Specify location of source to do the make in"
  33   echo "  -t /path/directory  Specify temp root directory"
  34   echo "  -d  Add date and time to directory name (e.g., /var/tmp/temproot.`date +%m%d.%H.%M`)"
  35   echo "  -u N  Specify a numeric umask"
  36   echo "  -w N  Specify a screen width in columns to sdiff"
  37   echo '  -D /path/directory  Specify the destination directory to install files to'
  38   echo ''
  39 }
  40
  41 display_help () {
  42   echo "* To specify a directory other than /var/tmp/temproot for the"
  43   echo "  temporary root environment, use -t /path/to/temp/root"
  44   echo "* The -w option takes a number as an argument for the column width"
  45   echo "  of the screen.  The default is 80."
  46   echo '* The -a option causes mergemaster to run without prompting.'
  47 }
  48
  49 # Loop allowing the user to use sdiff to merge files and display the merged
  50 # file.
  51 merge_loop () {
  52   case "${VERBOSE}" in
  53   '') ;;
  54   *)
  55       echo "   *** Type h at the sdiff prompt (%) to get usage help"
  56       ;;
  57   esac
  58   echo ''
  59   MERGE_AGAIN=yes
  60   while [ "${MERGE_AGAIN}" = "yes" ]; do
  61     # Prime file.merged so we don't blat the owner/group id's
  62     cp -p "${COMPFILE}" "${COMPFILE}.merged"
  63     sdiff -o "${COMPFILE}.merged" --text --suppress-common-lines \
  64       --width=${SCREEN_WIDTH:-80} "${DESTDIR}${COMPFILE#.}" "${COMPFILE}"
  65     INSTALL_MERGED=V
  66     while [ "${INSTALL_MERGED}" = "v" -o "${INSTALL_MERGED}" = "V" ]; do
  67       echo ''
  68       echo "  Use 'i' to install merged file"
  69       echo "  Use 'r' to re-do the merge"
  70       echo "  Use 'v' to view the merged file"
  71       echo "  Default is to leave the temporary file to deal with by hand"
  72       echo ''
  73       echo -n "    *** How should I deal with the merged file? [Leave it for later] "
  74       read INSTALL_MERGED
  75
  76       case "${INSTALL_MERGED}" in
  77       [iI])
  78         mv "${COMPFILE}.merged" "${COMPFILE}"
  79         echo ''
  80         if mm_install "${COMPFILE}"; then
  81           echo "     *** Merged version of ${COMPFILE} installed successfully"
  82         else
  83           echo "     *** Problem installing ${COMPFILE}, it will remain to merge by hand later"
  84         fi
  85         unset MERGE_AGAIN
  86         ;;
  87       [rR])
  88         rm "${COMPFILE}.merged"
  89         ;;
  90       [vV])
  91         ${PAGER} "${COMPFILE}.merged"
  92         ;;
  93       '')
  94         echo "   *** ${COMPFILE} will remain for your consideration"
  95         unset MERGE_AGAIN
  96         ;;
  97       *)
  98         echo "invalid choice: ${INSTALL_MERGED}"
  99         INSTALL_MERGED=V
 100         ;;
 101       esac
 102     done
 103   done
 104 }
 105
 106 # Loop showing user differences between files, allow merge, skip or install
 107 # options
 108 diff_loop () {
 109
 110   HANDLE_COMPFILE=v
 111
 112   while [ "${HANDLE_COMPFILE}" = "v" -o "${HANDLE_COMPFILE}" = "V" -o \
 113     "${HANDLE_COMPFILE}" = "NOT V" ]; do
 114     if [ -f "${DESTDIR}${COMPFILE#.}" -a -f "${COMPFILE}" ]; then
 115       if [ "${HANDLE_COMPFILE}" = "v" -o "${HANDLE_COMPFILE}" = "V" ]; then
 116         echo ''
 117         echo '   ======================================================================   '
 118         echo ''
 119         (
 120           echo "  *** Displaying differences between ${COMPFILE} and installed version:"
 121           echo ''
 122           diff ${DIFF_FLAG} ${DIFF_OPTIONS} "${DESTDIR}${COMPFILE#.}" "${COMPFILE}"
 123         ) | ${PAGER}
 124         echo ''
 125       fi
 126     else
 127       echo ''
 128       echo "  *** There is no installed version of ${COMPFILE}"
 129       echo ''
 130       case "${AUTO_INSTALL}" in
 131       [Yy][Ee][Ss])
 132         echo ''
 133         if mm_install "${COMPFILE}"; then
 134           echo "   *** ${COMPFILE} installed successfully"
 135           echo ''
 136           # Make the list print one file per line
 137           AUTO_INSTALLED_FILES="${AUTO_INSTALLED_FILES}      ${DESTDIR}${COMPFILE#.}
 138 "
 139         else
 140           echo "   *** Problem installing ${COMPFILE}, it will remain to merge by hand"
 141         fi
 142         return
 143         ;;
 144       *)
 145         NO_INSTALLED=yes
 146         ;;
 147       esac
 148     fi
 149
 150     echo "  Use 'd' to delete the temporary ${COMPFILE}"
 151     echo "  Use 'i' to install the temporary ${COMPFILE}"
 152     case "${NO_INSTALLED}" in
 153     '')
 154       echo "  Use 'm' to merge the temporary and installed versions"
 155       echo "  Use 'v' to view the diff results again"
 156       ;;
 157     esac
 158     echo ''
 159     echo "  Default is to leave the temporary file to deal with by hand"
 160     echo ''
 161     echo -n "How should I deal with this? [Leave it for later] "
 162     read HANDLE_COMPFILE
 163
 164     case "${HANDLE_COMPFILE}" in
 165     [dD])
 166       rm "${COMPFILE}"
 167       echo ''
 168       echo "   *** Deleting ${COMPFILE}"
 169       ;;
 170     [iI])
 171       echo ''
 172       if mm_install "${COMPFILE}"; then
 173         echo "   *** ${COMPFILE} installed successfully"
 174       else
 175         echo "   *** Problem installing ${COMPFILE}, it will remain to merge by hand"
 176       fi
 177       ;;
 178     [mM])
 179       case "${NO_INSTALLED}" in
 180       '')
 181         # interact with user to merge files
 182         merge_loop
 183         ;;
 184       *)
 185         echo ''
 186         echo "   *** There is no installed version of ${COMPFILE}"
 187         echo ''
 188         HANDLE_COMPFILE="NOT V"
 189         ;;
 190       esac # End of "No installed version of file but user selected merge" test
 191       ;;
 192     [vV])
 193       continue
 194       ;;
 195     '')
 196       echo ''
 197       echo "   *** ${COMPFILE} will remain for your consideration"
 198       ;;
 199     *)
 200       # invalid choice, show menu again.
 201       echo "invalid choice: ${HANDLE_COMPFILE}"
 202       echo ''
 203       HANDLE_COMPFILE="NOT V"
 204       continue
 205       ;;
 206     esac  # End of "How to handle files that are different"
 207   done
 208   unset NO_INSTALLED
 209   echo ''
 210   case "${VERBOSE}" in
 211   '') ;;
 212   *)
 213     sleep 3
 214     ;;
 215   esac
 216 }
 217
 218 press_to_continue () {
 219   local DISCARD
 220   echo -n ' *** Press the [Enter] or [Return] key to continue '
 221   read DISCARD
 222 }
 223
 224 # Set the default path for the temporary root environment
 225 #
 226 TEMPROOT='/var/tmp/temproot'
 227
 228 # Read /etc/mergemaster.rc first so the one in $HOME can override
 229 #
 230 if [ -r /etc/mergemaster.rc ]; then
 231   . /etc/mergemaster.rc
 232 fi
 233
 234 # Read .mergemasterrc before command line so CLI can override
 235 #
 236 if [ -r "$HOME/.mergemasterrc" ]; then
 237   . "$HOME/.mergemasterrc"
 238 fi
 239
 240 # Check the command line options
 241 #
 242 while getopts ":ascrvhipCPm:t:du:w:D:" COMMAND_LINE_ARGUMENT ; do
 243   case "${COMMAND_LINE_ARGUMENT}" in
 244   s)
 245     STRICT=yes
 246     unset DIFF_OPTIONS
 247     ;;
 248   c)
 249     DIFF_FLAG='-c'
 250     ;;
 251   r)
 252     RERUN=yes
 253     ;;
 254   v)
 255     case "${AUTO_RUN}" in
 256     '') VERBOSE=yes ;;
 257     esac
 258     ;;
 259   a)
 260     AUTO_RUN=yes
 261     unset VERBOSE
 262     ;;
 263   h)
 264     display_usage
 265     display_help
 266     exit 0
 267     ;;
 268   i)
 269     AUTO_INSTALL=yes
 270     ;;
 271   C)
 272     COMP_CONFS=yes
 273     ;;
 274   P)
 275     PRESERVE_FILES=yes
 276     ;;
 277   p)
 278     PRE_WORLD=yes
 279     unset COMP_CONFS
 280     unset AUTO_RUN
 281     ;;
 282   m)
 283     SOURCEDIR=${OPTARG}
 284     ;;
 285   t)
 286     TEMPROOT=${OPTARG}
 287     ;;
 288   d)
 289     TEMPROOT=${TEMPROOT}.`date +%m%d.%H.%M`
 290     ;;
 291   u)
 292     NEW_UMASK=${OPTARG}
 293     ;;
 294   w)
 295     SCREEN_WIDTH=${OPTARG}
 296     ;;
 297   D)
 298     DESTDIR=${OPTARG}
 299     ;;
 300   *)
 301     display_usage
 302     exit 1
 303     ;;
 304   esac
 305 done
 306
 307 # Don't force the user to set this in the mergemaster rc file
 308 if [ -n "${PRESERVE_FILES}" -a -z "${PRESERVE_FILES_DIR}" ]; then
 309   PRESERVE_FILES_DIR=/var/tmp/mergemaster/preserved-files-`date +%y%m%d-%H%M%S`
 310 fi
 311
 312 echo ''
 313
 314 # If the user has a pager defined, make sure we can run it
 315 #
 316 case "${DONT_CHECK_PAGER}" in
 317 '')
 318   while ! type "${PAGER%% *}" >/dev/null && [ -n "${PAGER}" ]; do
 319     echo " *** Your PAGER environment variable specifies '${PAGER}', but"
 320     echo "     due to the limited PATH that I use for security reasons,"
 321     echo "     I cannot execute it.  So, what would you like to do?"
 322     echo ''
 323     echo "  Use 'e' to exit mergemaster and fix your PAGER variable"
 324     if [ -x /usr/bin/less -o -x /usr/local/bin/less ]; then
 325     echo "  Use 'l' to set PAGER to 'less' for this run"
 326     fi
 327     echo "  Use 'm' to use plain old 'more' as your PAGER for this run"
 328     echo ''
 329     echo "  Default is to use plain old 'more' "
 330     echo ''
 331     echo -n "What should I do? [Use 'more'] "
 332     read FIXPAGER
 333
 334     case "${FIXPAGER}" in
 335     [eE])
 336        exit 0
 337        ;;
 338     [lL])
 339        if [ -x /usr/bin/less ]; then
 340          PAGER=/usr/bin/less
 341        elif [ -x /usr/local/bin/less ]; then
 342          PAGER=/usr/local/bin/less
 343        else
 344          echo ''
 345          echo " *** Fatal Error:"
 346          echo "     You asked to use 'less' as your pager, but I can't"
 347          echo "     find it in /usr/bin or /usr/local/bin"
 348          exit 1
 349        fi
 350        ;;
 351     [mM]|'')
 352        PAGER=more
 353        ;;
 354     *)
 355        echo ''
 356        echo "invalid choice: ${FIXPAGER}"
 357     esac
 358     echo ''
 359   done
 360   ;;
 361 esac
 362
 363 # If user has a pager defined, or got assigned one above, use it.
 364 # If not, use less.
 365 #
 366 PAGER=${PAGER:-less}
 367 PAGER="${PAGER} -c"
 368
 369 if [ -n "${VERBOSE}" -a ! "${PAGER}" = "more" ]; then
 370   echo " *** You have ${PAGER} defined as your pager so we will use that"
 371   echo ''
 372   sleep 3
 373 fi
 374
 375 # Assign the diff flag once so we will not have to keep testing it
 376 #
 377 DIFF_FLAG=${DIFF_FLAG:--u}
 378
 379 # Assign the source directory
 380 #
 381 SOURCEDIR=${SOURCEDIR:-/usr/src/etc}
 382
 383 # Check the width of the user's terminal
 384 #
 385 if [ -t 0 ]; then
 386   w=`tput columns`
 387   case "${w}" in
 388   0|'') ;; # No-op, since the input is not valid
 389   *)
 390     case "${SCREEN_WIDTH}" in
 391     '') SCREEN_WIDTH="${w}" ;;
 392     "${w}") ;; # No-op, since they are the same
 393     *)
 394       echo -n "*** You entered ${SCREEN_WIDTH} as your screen width, but stty "
 395       echo "thinks it is ${w}."
 396       echo ''
 397       echo -n "What would you like to use? [${w}] "
 398       read SCREEN_WIDTH
 399       case "${SCREEN_WIDTH}" in
 400       '') SCREEN_WIDTH="${w}" ;;
 401       esac
 402       ;;
 403     esac
 404   esac
 405 fi
 406
 407 # Define what CVS $Id tag to look for to aid portability.
 408 #
 409 CVS_ID_TAG=DragonFly
 410
 411 delete_temproot () {
 412   rm -rf "${TEMPROOT}" 2>/dev/null
 413   chflags -R 0 "${TEMPROOT}" 2>/dev/null
 414   rm -rf "${TEMPROOT}" || exit 1
 415 }
 416
 417 case "${RERUN}" in
 418 '')
 419   # Set up the loop to test for the existence of the
 420   # temp root directory.
 421   #
 422   TEST_TEMP_ROOT=yes
 423   while [ "${TEST_TEMP_ROOT}" = "yes" ]; do
 424     if [ -d "${TEMPROOT}" ]; then
 425       echo "*** The directory specified for the temporary root environment,"
 426       echo "    ${TEMPROOT}, exists.  This can be a security risk if untrusted"
 427       echo "    users have access to the system."
 428       echo ''
 429       case "${AUTO_RUN}" in
 430       '')
 431         echo "  Use 'd' to delete the old ${TEMPROOT} and continue"
 432         echo "  Use 't' to select a new temporary root directory"
 433         echo "  Use 'e' to exit mergemaster"
 434         echo ''
 435         echo "  Default is to use ${TEMPROOT} as is"
 436         echo ''
 437         echo -n "How should I deal with this? [Use the existing ${TEMPROOT}] "
 438         read DELORNOT
 439
 440         case "${DELORNOT}" in
 441         [dD])
 442           echo ''
 443           echo "   *** Deleting the old ${TEMPROOT}"
 444           echo ''
 445           delete_temproot || exit 1
 446           unset TEST_TEMP_ROOT
 447           ;;
 448         [tT])
 449           echo "   *** Enter new directory name for temporary root environment"
 450           read TEMPROOT
 451           ;;
 452         [eE])
 453           exit 0
 454           ;;
 455         '')
 456           echo ''
 457           echo "   *** Leaving ${TEMPROOT} intact"
 458           echo ''
 459           unset TEST_TEMP_ROOT
 460           ;;
 461         *)
 462           echo ''
 463           echo "invalid choice: ${DELORNOT}"
 464           echo ''
 465           ;;
 466         esac
 467         ;;
 468       *)
 469         # If this is an auto-run, try a hopefully safe alternative then
 470         # re-test anyway.
 471         TEMPROOT=/var/tmp/temproot.`date +%m%d.%H.%M.%S`
 472         ;;
 473       esac
 474     else
 475       unset TEST_TEMP_ROOT
 476     fi
 477   done
 478
 479   echo "*** Creating the temporary root environment in ${TEMPROOT}"
 480
 481   if mkdir -p "${TEMPROOT}"; then
 482     echo " *** ${TEMPROOT} ready for use"
 483   fi
 484
 485   if [ ! -d "${TEMPROOT}" ]; then
 486     echo ''
 487     echo "  *** FATAL ERROR: Cannot create ${TEMPROOT}"
 488     echo ''
 489     exit 1
 490   fi
 491
 492   echo " *** Creating and populating directory structure in ${TEMPROOT}"
 493   echo ''
 494
 495   case "${VERBOSE}" in
 496   '') ;;
 497   *)
 498     press_to_continue
 499     ;;
 500   esac
 501
 502   case "${PRE_WORLD}" in
 503   '')
 504     { cd ${SOURCEDIR} &&
 505       case "${DESTDIR}" in
 506       '') ;;
 507       *)
 508       make DESTDIR=${DESTDIR} distrib-dirs
 509         ;;
 510       esac
 511       make DESTDIR=${TEMPROOT} distrib-dirs &&
 512       make MAKEOBJDIRPREFIX=${TEMPROOT}/usr/obj obj &&
 513       make MAKEOBJDIRPREFIX=${TEMPROOT}/usr/obj DESTDIR=${TEMPROOT} \
 514           -DNO_MAKEDEV_RUN distribution;} ||
 515     { echo '';
 516      echo "  *** FATAL ERROR: Cannot 'cd' to ${SOURCEDIR} and install files to";
 517       echo "      the temproot environment";
 518       echo '';
 519       exit 1;}
 520     ;;
 521   *)
 522     # Only set up files that are crucial to {build|install}world
 523     { mkdir -p ${TEMPROOT}/etc &&
 524       cp -p ${SOURCEDIR}/master.passwd ${TEMPROOT}/etc &&
 525       cp -p ${SOURCEDIR}/group ${TEMPROOT}/etc;} ||
 526     { echo '';
 527       echo '  *** FATAL ERROR: Cannot copy files to the temproot environment';
 528       echo '';
 529       exit 1;}
 530     ;;
 531   esac
 532
 533   # Doing the inventory and removing files that we don't want to compare only
 534   # makes sense if we are not doing a rerun, since we have no way of knowing
 535   # what happened to the files during previous incarnations.
 536   case "${VERBOSE}" in
 537   '') ;;
 538   *)
 539     echo ''
 540     echo ' *** The following files exist only in the installed version of'
 541     echo "     ${DESTDIR}/etc.  In the vast majority of cases these files"
 542     echo '     are necessary parts of the system and should not be deleted.'
 543     echo '     However because these files are not updated by this process you'
 544     echo '     might want to verify their status before rebooting your system.'
 545     echo ''
 546     press_to_continue
 547     diff -qr ${DESTDIR}/etc ${TEMPROOT}/etc | grep "^Only in ${DESTDIR}/etc" | ${PAGER}
 548     echo ''
 549     press_to_continue
 550     ;;
 551   esac
 552
 553   # Avoid comparing the motd if the user specifies it in .mergemasterrc
 554   case "${IGNORE_MOTD}" in
 555   '') ;;
 556   *) rm -f ${TEMPROOT}/etc/motd
 557      ;;
 558   esac
 559
 560   # Avoid trying to update MAKEDEV if /dev is on a devfs
 561   if /sbin/sysctl vfs.devfs > /dev/null 2>&1 ; then
 562     rm -f ${TEMPROOT}/dev/MAKEDEV ${TEMPROOT}/dev/MAKEDEV.local
 563   fi
 564
 565   ;; # End of the "RERUN" test
 566 esac
 567
 568 # We really don't want to have to deal with files like login.conf.db, pwd.db,
 569 # or spwd.db.  Instead, we want to compare the text versions, and run *_mkdb.
 570 # Prompt the user to do so below, as needed.
 571 #
 572 rm -f ${TEMPROOT}/etc/*.db ${TEMPROOT}/etc/passwd
 573
 574 # We only need to compare things like freebsd.cf once
 575 find ${TEMPROOT}/usr/obj -type f -delete 2>/dev/null
 576
 577 # Get ready to start comparing files
 578
 579 # Check umask if not specified on the command line,
 580 # and we are not doing an autorun
 581 #
 582 if [ -z "${NEW_UMASK}" -a -z "${AUTO_RUN}" ]; then
 583   USER_UMASK=`umask`
 584   case "${USER_UMASK}" in
 585   0022|022) ;;
 586   *)
 587     echo ''
 588     echo " *** Your umask is currently set to ${USER_UMASK}.  By default, this script"
 589     echo "     installs all files with the same user, group and modes that"
 590     echo "     they are created with by ${SOURCEDIR}/Makefile, compared to"
 591     echo "     a umask of 022.  This umask allows world read permission when"
 592     echo "     the file's default permissions have it."
 593     echo ''
 594     echo "     No world permissions can sometimes cause problems.  A umask of"
 595     echo "     022 will restore the default behavior, but is not mandatory."
 596     echo "     /etc/master.passwd is a special case.  Its file permissions"
 597     echo "     will be 600 (rw-------) if installed."
 598     echo ''
 599     echo -n "What umask should I use? [${USER_UMASK}] "
 600     read NEW_UMASK
 601
 602     NEW_UMASK="${NEW_UMASK:-$USER_UMASK}"
 603     ;;
 604   esac
 605   echo ''
 606 fi
 607
 608 CONFIRMED_UMASK=${NEW_UMASK:-0022}
 609
 610 #
 611 # Warn users who still have old rc files
 612 #
 613 for file in atm devfs diskless1 diskless2 isdn network network6 pccard \
 614   serial syscons sysctl alpha x86_64 i386 ia64 sparc64; do
 615   if [ -f "${DESTDIR}/etc/rc.${file}" ]; then
 616     OLD_RC_PRESENT=1
 617     break
 618   fi
 619 done
 620
 621 case "${OLD_RC_PRESENT}" in
 622 1)
 623   echo ''
 624   echo " *** There are elements of the old rc system in ${DESTDIR}/etc/."
 625   echo ''
 626   echo '     While these scripts will not hurt anything, they are not'
 627   echo '     functional on an up to date system, and can be removed.'
 628   echo ''
 629
 630   case "${AUTO_RUN}" in
 631   '')
 632     echo -n 'Move these files to /var/tmp/mergemaster/old_rc? [yes] '
 633     read MOVE_OLD_RC
 634
 635     case "${MOVE_OLD_RC}" in
 636     [nN]*) ;;
 637     *)
 638       mkdir -p /var/tmp/mergemaster/old_rc
 639         for file in atm devfs diskless1 diskless2 isdn network network6 pccard \
 640           serial syscons sysctl alpha x86_64 i386 ia64 sparc64; do
 641           if [ -f "${DESTDIR}/etc/rc.${file}" ]; then
 642             mv ${DESTDIR}/etc/rc.${file} /var/tmp/mergemaster/old_rc/
 643           fi
 644         done
 645       echo '  The files have been moved'
 646       press_to_continue
 647       ;;
 648     esac
 649     ;;
 650   *) ;;
 651   esac
 652 esac
 653
 654 # Use the umask/mode information to install the files
 655 # Create directories as needed
 656 #
 657 do_install_and_rm () {
 658   case "${PRESERVE_FILES}" in
 659   [Yy][Ee][Ss])
 660     if [ -f "${3}/${2##*/}" ]; then
 661       mkdir -p ${PRESERVE_FILES_DIR}/${2%/*}
 662       cp ${3}/${2##*/} ${PRESERVE_FILES_DIR}/${2%/*}
 663     fi
 664     ;;
 665   esac
 666
 667   install -m "${1}" "${2}" "${3}" &&
 668   rm -f "${2}"
 669 }
 670
 671 # 4095 = "obase=10;ibase=8;07777" | bc
 672 find_mode () {
 673   local OCTAL
 674   OCTAL=$(( ~$(echo "obase=10;ibase=8; ${CONFIRMED_UMASK}" | bc) & 4095 &
 675           $(echo "obase=10; ibase=8; $(stat -f "%OMp%OLp" ${1})" | bc) ))
 676   printf "%04o\n" ${OCTAL}
 677 }
 678
 679 mm_install () {
 680   local INSTALL_DIR
 681   INSTALL_DIR=${1#.}
 682   INSTALL_DIR=${INSTALL_DIR%/*}
 683
 684   case "${INSTALL_DIR}" in
 685   '')
 686     INSTALL_DIR=/
 687     ;;
 688   esac
 689
 690   if [ -n "${DESTDIR}${INSTALL_DIR}" -a ! -d "${DESTDIR}${INSTALL_DIR}" ]; then
 691     DIR_MODE=`find_mode "${TEMPROOT}/${INSTALL_DIR}"`
 692     install -d -o root -g wheel -m "${DIR_MODE}" "${DESTDIR}${INSTALL_DIR}"
 693   fi
 694
 695   FILE_MODE=`find_mode "${1}"`
 696
 697   if [ ! -x "${1}" ]; then
 698     case "${1#.}" in
 699     /etc/mail/aliases)
 700       NEED_NEWALIASES=yes
 701       ;;
 702     /etc/login.conf)
 703       NEED_CAP_MKDB=yes
 704       ;;
 705     /etc/master.passwd)
 706       do_install_and_rm 600 "${1}" "${DESTDIR}${INSTALL_DIR}"
 707       NEED_PWD_MKDB=yes
 708       DONT_INSTALL=yes
 709       ;;
 710     /.cshrc | /.profile)
 711     case "${AUTO_INSTALL}" in
 712     '')
 713       case "${LINK_EXPLAINED}" in
 714       '')
 715         echo "   *** Historically BSD derived systems have had a"
 716         echo "       hard link from /.cshrc and /.profile to"
 717         echo "       their namesakes in /root.  Please indicate"
 718         echo "       your preference below for bringing your"
 719         echo "       installed files up to date."
 720         echo ''
 721         LINK_EXPLAINED=yes
 722         ;;
 723       esac
 724
 725       echo "   Use 'd' to delete the temporary ${COMPFILE}"
 726       echo "   Use 'l' to delete the existing ${DESTDIR}${COMPFILE#.} and create the link"
 727       echo ''
 728       echo "   Default is to leave the temporary file to deal with by hand"
 729       echo ''
 730       echo -n "  How should I handle ${COMPFILE}? [Leave it to install later] "
 731       read HANDLE_LINK
 732       ;;
 733     *)  # Part of AUTO_INSTALL
 734       HANDLE_LINK=l
 735       ;;
 736     esac
 737
 738       case "${HANDLE_LINK}" in
 739       [dD]*)
 740         rm "${COMPFILE}"
 741         echo ''
 742         echo "   *** Deleting ${COMPFILE}"
 743         ;;
 744       [lL]*)
 745         echo ''
 746         rm -f "${DESTDIR}${COMPFILE#.}"
 747         if ln "${DESTDIR}/root/${COMPFILE##*/}" "${DESTDIR}${COMPFILE#.}"; then
 748           echo "   *** Link from ${DESTDIR}${COMPFILE#.} to ${DESTDIR}/root/${COMPFILE##*/} installed successfully"
 749           rm "${COMPFILE}"
 750         else
 751           echo "   *** Error linking ${DESTDIR}${COMPFILE#.} to ${DESTDIR}/root/${COMPFILE##*/}, ${COMPFILE} will remain to install by hand"
 752         fi
 753         ;;
 754       *)
 755         echo "   *** ${COMPFILE} will remain for your consideration"
 756         ;;
 757       esac
 758       DONT_INSTALL=yes
 759       ;;
 760     esac
 761
 762     case "${DONT_INSTALL}" in
 763     '')
 764       do_install_and_rm "${FILE_MODE}" "${1}" "${DESTDIR}${INSTALL_DIR}"
 765       ;;
 766     *)
 767       unset DONT_INSTALL
 768       ;;
 769     esac
 770   else  # File matched -x
 771     case "${1#.}" in
 772     /dev/MAKEDEV)
 773       NEED_MAKEDEV=yes
 774       ;;
 775     esac
 776     do_install_and_rm "${FILE_MODE}" "${1}" "${DESTDIR}${INSTALL_DIR}"
 777   fi
 778   return $?
 779 }
 780
 781 echo ''
 782 echo "*** Beginning comparison"
 783 echo ''
 784
 785 cd "${TEMPROOT}"
 786
 787 if [ -r "${MM_PRE_COMPARE_SCRIPT}" ]; then
 788   . "${MM_PRE_COMPARE_SCRIPT}"
 789 fi
 790
 791 # Using -size +0 avoids uselessly checking the empty log files created
 792 # by ${SOURCEDIR}/Makefile and the device entries in ./dev, but does
 793 # check the scripts in ./dev, as we'd like (assuming no devfs of course).
 794 #
 795 for COMPFILE in `find . -type f -size +0`; do
 796
 797   # First, check to see if the file exists in DESTDIR.  If not, the
 798   # diff_loop function knows how to handle it.
 799   #
 800   if [ ! -e "${DESTDIR}${COMPFILE#.}" ]; then
 801     case "${AUTO_RUN}" in
 802       '')
 803         diff_loop
 804         ;;
 805       *)
 806         case "${AUTO_INSTALL}" in
 807         '')
 808           # If this is an auto run, make it official
 809           echo "   *** ${COMPFILE} will remain for your consideration"
 810           ;;
 811         *)
 812           diff_loop
 813           ;;
 814         esac
 815         ;;
 816     esac # Auto run test
 817     continue
 818   fi
 819
 820   case "${STRICT}" in
 821   '' | [Nn][Oo])
 822     # Compare CVS $Id's first so if the file hasn't been modified
 823     # local changes will be ignored.
 824     # If the files have the same $Id, delete the one in temproot so the
 825     # user will have less to wade through if files are left to merge by hand.
 826     #
 827     CVSID1=`grep "[$]${CVS_ID_TAG}:" ${DESTDIR}${COMPFILE#.} 2>/dev/null`
 828     CVSID2=`grep "[$]${CVS_ID_TAG}:" ${COMPFILE} 2>/dev/null` || CVSID2=none
 829
 830     case "${CVSID2}" in
 831     "${CVSID1}")
 832       echo " *** Temp ${COMPFILE} and installed have the same CVS Id, deleting"
 833       rm "${COMPFILE}"
 834       ;;
 835     esac
 836     ;;
 837   esac
 838
 839   # If the file is still here either because the $Ids are different, the
 840   # file doesn't have an $Id, or we're using STRICT mode; look at the diff.
 841   #
 842   if [ -f "${COMPFILE}" ]; then
 843
 844     # Do an absolute diff first to see if the files are actually different.
 845     # If they're not different, delete the one in temproot.
 846     #
 847     if diff -q ${DIFF_OPTIONS} "${DESTDIR}${COMPFILE#.}" "${COMPFILE}" > \
 848       /dev/null 2>&1; then
 849       echo " *** Temp ${COMPFILE} and installed are the same, deleting"
 850       rm "${COMPFILE}"
 851     else
 852       # Ok, the files are different, so show the user where they differ.
 853       # Use user's choice of diff methods; and user's pager if they have one.
 854       # Use more if not.
 855       # Use unified diffs by default.  Context diffs give me a headache. :)
 856       #
 857       case "${AUTO_RUN}" in
 858       '')
 859         # prompt user to install/delete/merge changes
 860         diff_loop
 861         ;;
 862       *)
 863         # If this is an auto run, make it official
 864         echo "   *** ${COMPFILE} will remain for your consideration"
 865         ;;
 866       esac # Auto run test
 867     fi # Yes, the files are different
 868   fi # Yes, the file still remains to be checked
 869 done # This is for the do way up there at the beginning of the comparison
 870
 871 echo ''
 872 echo "*** Comparison complete"
 873 echo ''
 874
 875 TEST_FOR_FILES=`find ${TEMPROOT} -type f -size +0 2>/dev/null`
 876 if [ -n "${TEST_FOR_FILES}" ]; then
 877   echo "*** Files that remain for you to merge by hand:"
 878   find "${TEMPROOT}" -type f -size +0
 879   echo ''
 880 fi
 881
 882 case "${AUTO_RUN}" in
 883 '')
 884   echo -n "Do you wish to delete what is left of ${TEMPROOT}? [no] "
 885   read DEL_TEMPROOT
 886
 887   case "${DEL_TEMPROOT}" in
 888   [yY]*)
 889     if delete_temproot; then
 890       echo " *** ${TEMPROOT} has been deleted"
 891     else
 892       echo " *** Unable to delete ${TEMPROOT}"
 893     fi
 894     ;;
 895   *)
 896     echo " *** ${TEMPROOT} will remain"
 897     ;;
 898   esac
 899   ;;
 900 *) ;;
 901 esac
 902
 903 case "${AUTO_INSTALLED_FILES}" in
 904 '') ;;
 905 *)
 906   case "${AUTO_RUN}" in
 907   '')
 908     (
 909       echo ''
 910       echo '*** You chose the automatic install option for files that did not'
 911       echo '    exist on your system.  The following were installed for you:'
 912       echo "${AUTO_INSTALLED_FILES}"
 913     ) | ${PAGER}
 914     ;;
 915   *)
 916     echo ''
 917     echo '*** You chose the automatic install option for files that did not'
 918     echo '    exist on your system.  The following were installed for you:'
 919     echo "${AUTO_INSTALLED_FILES}"
 920     ;;
 921   esac
 922   ;;
 923 esac
 924
 925 run_it_now () {
 926   case "${AUTO_RUN}" in
 927   '')
 928     unset YES_OR_NO
 929     echo ''
 930     echo -n '    Would you like to run it now? y or n [n] '
 931     read YES_OR_NO
 932
 933     case "${YES_OR_NO}" in
 934     y)
 935       echo "    Running ${1}"
 936       echo ''
 937       eval "${1}"
 938       ;;
 939     ''|n)
 940       echo ''
 941       echo "       *** Cancelled"
 942       echo ''
 943       echo "    Make sure to run ${1} yourself"
 944       ;;
 945     *)
 946       echo ''
 947       echo "       *** Sorry, I do not understand your answer (${YES_OR_NO})"
 948       echo ''
 949       echo "    Make sure to run ${1} yourself"
 950     esac
 951     ;;
 952   *) ;;
 953   esac
 954 }
 955
 956 case "${NEED_MAKEDEV}" in
 957 '') ;;
 958 *)
 959   echo ''
 960   echo "*** You installed a new ${DESTDIR}/dev/MAKEDEV script, so make sure that you run"
 961   echo "    'cd ${DESTDIR}/dev && /bin/sh MAKEDEV all' to rebuild your devices"
 962   run_it_now "cd ${DESTDIR}/dev && /bin/sh MAKEDEV all"
 963   ;;
 964 esac
 965
 966 case "${NEED_NEWALIASES}" in
 967 '') ;;
 968 *)
 969   echo ''
 970   if [ -n "${DESTDIR}" ]; then
 971     echo "*** You installed a new aliases file into ${DESTDIR}/etc/mail, but"
 972     echo "    the newaliases command is limited to the directories configured"
 973     echo "    in sendmail.cf.  Make sure to create your aliases database by"
 974     echo "    hand when your sendmail configuration is done."
 975   else
 976     echo "*** You installed a new aliases file, so make sure that you run"
 977     echo "    '/usr/bin/newaliases' to rebuild your aliases database"
 978     run_it_now '/usr/bin/newaliases'
 979   fi
 980   ;;
 981 esac
 982
 983 case "${NEED_CAP_MKDB}" in
 984 '') ;;
 985 *)
 986   echo ''
 987   echo "*** You installed a login.conf file, so make sure that you run"
 988   echo "    '/usr/bin/cap_mkdb ${DESTDIR}/etc/login.conf'"
 989   echo "     to rebuild your login.conf database"
 990   run_it_now "/usr/bin/cap_mkdb ${DESTDIR}/etc/login.conf"
 991   ;;
 992 esac
 993
 994 case "${NEED_PWD_MKDB}" in
 995 '') ;;
 996 *)
 997   echo ''
 998   echo "*** You installed a new master.passwd file, so make sure that you run"
 999   if [ -n "${DESTDIR}" ]; then
1000     echo "    '/usr/sbin/pwd_mkdb -d ${DESTDIR}/etc -p ${DESTDIR}/etc/master.passwd'"
1001     echo "    to rebuild your password files"
1002     run_it_now "/usr/sbin/pwd_mkdb -d ${DESTDIR}/etc -p ${DESTDIR}/etc/master.passwd"
1003   else
1004     echo "    '/usr/sbin/pwd_mkdb -p /etc/master.passwd'"
1005     echo "     to rebuild your password files"
1006     run_it_now '/usr/sbin/pwd_mkdb -p /etc/master.passwd'
1007   fi
1008   ;;
1009 esac
1010
1011 echo ''
1012
1013 if [ -r "${MM_EXIT_SCRIPT}" ]; then
1014   . "${MM_EXIT_SCRIPT}"
1015 fi
1016
1017 case "${COMP_CONFS}" in
1018 '') ;;
1019 *)
1020   . ${DESTDIR}/etc/defaults/rc.conf
1021
1022   (echo ''
1023   echo "*** Comparing conf files: ${rc_conf_files}"
1024
1025   for CONF_FILE in ${rc_conf_files}; do
1026     if [ -r "${DESTDIR}${CONF_FILE}" ]; then
1027       echo ''
1028       echo "*** From ${DESTDIR}${CONF_FILE}"
1029       echo "*** From ${DESTDIR}/etc/defaults/rc.conf"
1030
1031       for RC_CONF_VAR in `grep -i ^[a-z] ${DESTDIR}${CONF_FILE} |
1032         cut -d '=' -f 1`; do
1033         echo ''
1034         grep -w ^${RC_CONF_VAR} ${DESTDIR}${CONF_FILE}
1035         grep -w ^${RC_CONF_VAR} ${DESTDIR}/etc/defaults/rc.conf ||
1036           echo ' * No default variable with this name'
1037       done
1038     fi
1039   done) | ${PAGER}
1040   echo ''
1041   ;;
1042 esac
1043
1044 case "${PRE_WORLD}" in
1045 '') ;;
1046 *)
1047   MAKE_CONF="${SOURCEDIR%etc}etc/defaults/make.conf"
1048
1049   (echo ''
1050   echo '*** Comparing make variables'
1051   echo ''
1052   echo "*** From ${DESTDIR}/etc/make.conf"
1053   echo "*** From ${MAKE_CONF}"
1054
1055   for MAKE_VAR in `grep -i ^[a-z] ${DESTDIR}/etc/make.conf | cut -d '=' -f 1`; do
1056     echo ''
1057     grep -w ^${MAKE_VAR} ${DESTDIR}/etc/make.conf
1058     grep -w ^#${MAKE_VAR} ${MAKE_CONF} ||
1059       echo ' * No example variable with this name'
1060   done) | ${PAGER}
1061   ;;
1062 esac
1063
1064 exit 0
1065