maintainer-scripts/gcc_release

   1 #! /bin/sh
   2
   3 ########################################################################
   4 #
   5 # File:   gcc_release
   6 # Author: Jeffrey Law, Bernd Schmidt, Mark Mitchell
   7 # Date:   2001-05-25
   8 #
   9 # Contents:
  10 #   Script to create a GCC release.
  11 #
  12 # Copyright (c) 2001, 2002 Free Software Foundation.
  13 #
  14 # This file is part of GCC.
  15 #
  16 # GCC is free software; you can redistribute it and/or modify
  17 # it under the terms of the GNU General Public License as published by
  18 # the Free Software Foundation; either version 2, or (at your option)
  19 # any later version.
  20 #
  21 # GCC is distributed in the hope that it will be useful,
  22 # but WITHOUT ANY WARRANTY; without even the implied warranty of
  23 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  24 # GNU General Public License for more details.
  25 #
  26 # You should have received a copy of the GNU General Public License
  27 # along with GCC; see the file COPYING.  If not, write to
  28 # the Free Software Foundation, 59 Temple Place - Suite 330,
  29 # Boston, MA 02111-1307, USA.
  30 #
  31 ########################################################################
  32
  33 ########################################################################
  34 # Notes
  35 ########################################################################
  36
  37 # Here is an example usage of this script, to create a GCC 3.0.2
  38 # prerelease:
  39 #
  40 #   gcc_release -r 3.0.2
  41 #
  42 # This script will automatically use the head of the release branch
  43 # to generate the release.
  44
  45 ########################################################################
  46 # Functions
  47 ########################################################################
  48
  49 # Issue the error message given by $1 and exit with a non-zero
  50 # exit code.
  51
  52 error() {
  53     echo "gcc_release: error: $1"
  54     exit 1
  55 }
  56
  57 # Issue the informational message given by $1.
  58
  59 inform() {
  60     echo "gcc_release: $1"
  61 }
  62
  63 # Issue a usage message explaining how to use this script.
  64
  65 usage() {
  66 cat <<EOF
  67 gcc_release -r release [further options]
  68 gcc_release -s [further options]
  69
  70 Options:
  71
  72   -r release           Version of the form X.Y or X.Y.Z.
  73   -s                   Create a snapshot, not a real release.
  74
  75   -d destination       Local working directory where we will build the release
  76                        (default=${HOME}).
  77   -f                   Create a final release (and update ChangeLogs,...).
  78   -l                   Indicate that we are running on gcc.gnu.org.
  79   -p previous-tarball  Location of a previous tarball (to generate diff files).
  80   -t tag               Tag to mark the release in CVS.
  81   -u username          Username for upload operations.
  82 EOF
  83     exit 1
  84 }
  85
  86 # Change to the directory given by $1.
  87
  88 changedir() {
  89   cd $1 || \
  90     error "Could not change directory to $1"
  91 }
  92
  93 # Each of the arguments is a directory name, relative to the top
  94 # of the source tree.  Return another name for that directory, relative
  95 # to the working directory.
  96
  97 adjust_dirs() {
  98   for x in $@; do
  99     echo `basename ${SOURCE_DIRECTORY}`/$x
 100   done
 101 }
 102
 103 # Build the source tree that will be the basis for the release
 104 # in ${WORKING_DIRECTORY}/gcc-${RELEASE}.
 105
 106 build_sources() {
 107   # If the WORKING_DIRECTORY already exists, do not risk destroying it.
 108   if [ -r ${WORKING_DIRECTORY} ]; then
 109     error "\`${WORKING_DIRECTORY}' already exists"
 110   fi
 111   # Create the WORKING_DIRECTORY.
 112   mkdir "${WORKING_DIRECTORY}" \
 113     || error "Could not create \`${WORKING_DIRECTORY}'"
 114   changedir "${WORKING_DIRECTORY}"
 115
 116   # If this is a final release, make sure that the ChangeLogs
 117   # and version strings are updated.
 118   if [ ${FINAL} -ne 0 ]; then
 119     inform "Updating ChangeLogs and version files"
 120
 121     ${CVS} co -d "`basename ${SOURCE_DIRECTORY}`" \
 122            -r ${CVSBRANCH} gcc || \
 123            error "Could not check out release sources"
 124     for x in `find ${SOURCE_DIRECTORY} -name ChangeLog`; do
 125       # Update this ChangeLog file only if it does not yet contain the
 126       # entry we are going to add.  (This is a safety net for repeated
 127       # runs of this script for the same release.)
 128       if ! grep "GCC ${RELEASE} released." ${x} > /dev/null ; then
 129         cat - ${x} > ${x}.new <<EOF
 130 ${LONG_DATE}  Release Manager
 131
 132         * GCC ${RELEASE} released.
 133
 134 EOF
 135         mv ${x}.new ${x} || \
 136             error "Could not update ${x}"
 137         (changedir `dirname ${x}` && \
 138             ${CVS} ci -m 'Mark ChangeLog' `basename ${x}`) || \
 139             error "Could not commit ${x}"
 140       fi
 141     done
 142
 143     # Update `gcc/version.c'.
 144     for x in gcc/version.c; do
 145       y=`basename ${x}`
 146       (changedir `dirname ${SOURCE_DIRECTORY}/${x}` && \
 147           sed -e 's|= \".*\"|= \"'${RELEASE}'\"|g' < ${y} > ${y}.new && \
 148           mv ${y}.new ${y} && \
 149           ${CVS} ci -m 'Update version' ${y}) || \
 150           error "Could not update ${x}"
 151     done
 152
 153     # Make sure we tag the sources for a final release.
 154     TAG="gcc_`echo ${RELEASE} | tr . _`_release"
 155
 156     rm -rf ${SOURCE_DIRECTORY}
 157   fi
 158
 159   # Tag the sources.
 160   if [ -n "${TAG}" ]; then
 161     inform "Tagging sources as ${TAG}"
 162     ${CVS} rtag -r ${CVSBRANCH} -F ${TAG} gcc || \
 163       error "Could not tag sources"
 164     CVSBRANCH=$TAG
 165   fi
 166
 167   # Export the current sources.
 168   inform "Retrieving release sources"
 169   ${CVS} \
 170        export -d "`basename ${SOURCE_DIRECTORY}`" \
 171        -r ${CVSBRANCH} gcc || \
 172     error "Could not retrieve release sources"
 173
 174   # Run gcc_update on them to set up the timestamps nicely.
 175   changedir "gcc-${RELEASE}"
 176   contrib/gcc_update --touch
 177
 178   # Obtain some documentation files from the wwwdocs module.
 179   inform "Retrieving HTML documentation"
 180   changedir "${WORKING_DIRECTORY}"
 181   for x in bugs faq; do
 182     (${CVS} export -r HEAD wwwdocs/htdocs/${x}.html && \
 183      cp ${WORKING_DIRECTORY}/wwwdocs/htdocs/${x}.html \
 184         ${SOURCE_DIRECTORY}) || \
 185       error "Could not retrieve ${x}.html"
 186   done
 187
 188   inform "Generating plain-text documentation from HTML"
 189   changedir "${SOURCE_DIRECTORY}"
 190   for file in *.html; do
 191     newfile=`echo $file | sed -e 's/.html//' | tr "[:lower:]" "[:upper:]"`
 192     (${ENV} TERM=vt100 lynx -dump $file \
 193        | sed -e "s#file://localhost`/bin/pwd`\(.*\)#http://gcc.gnu.org\1#g" \
 194        > $newfile) || \
 195      error "Could not generate text-only version of ${file}"
 196   done
 197
 198   # For a prerelease or real release, we need to generate additional
 199   # files not present in CVS.
 200   changedir "${SOURCE_DIRECTORY}"
 201   if [ $SNAPSHOT -ne 1 ]; then
 202     # Generate the documentation.
 203     inform "Building install docs"
 204     SOURCEDIR=${SOURCE_DIRECTORY}/gcc/doc
 205     DESTDIR=${SOURCE_DIRECTORY}/INSTALL
 206     export SOURCEDIR
 207     export DESTDIR
 208     ${SOURCE_DIRECTORY}/gcc/doc/install.texi2html
 209
 210     # Regenerate the NEWS file.
 211     contrib/gennews > gcc/NEWS || \
 212       error "Could not regenerate NEWS files"
 213
 214     # Now, we must build the compiler in order to create any generated
 215     # files that are supposed to go in the source directory.  This is
 216     # also a good sanity check to make sure that the release builds
 217     # on at least one platform.
 218     inform "Building compiler"
 219     OBJECT_DIRECTORY=../objdir
 220     contrib/gcc_build -d ${SOURCE_DIRECTORY} -o ${OBJECT_DIRECTORY} build || \
 221       error "Could not rebuild GCC"
 222
 223     # Regenerate the Fotran NEWS and BUGS files.
 224     (cd ${OBJECT_DIRECTORY}/gcc && make f77.rebuilt) || \
 225       error "Could not regenerate Fortran NEWS and BUGS files"
 226   fi
 227
 228   # Move message catalogs to source directory.
 229   mv ../objdir/gcc/po/*.gmo gcc/po/
 230
 231   # Create a `.brik' file to use for checking the validity of the
 232   # release.
 233   changedir "${SOURCE_DIRECTORY}"
 234   BRIK_FILE=`mktemp /tmp/gcc_release.XXXXXXX`
 235   ((find . -type f | sort > $BRIK_FILE) && \
 236        brik -Gb -f ${BRIK_FILE} > .brik && \
 237        rm ${BRIK_FILE}) || \
 238      error "Could not compute brik checksum"
 239 }
 240
 241 # Buid a single tarfile.  The first argument is the name of the name
 242 # of the tarfile to build, without any suffixes.  They will be added
 243 # automatically.  The rest of the arguments are the files or
 244 # directories to include.
 245
 246 build_tarfile() {
 247   # Get the name of the destination tar file.
 248   TARFILE="$1.tar.bz2"
 249   shift
 250
 251   # Build the tar file itself.
 252   (${TAR} cf - "$@" | ${BZIP2} > ${TARFILE}) || \
 253     error "Could not build tarfile"
 254   FILE_LIST="${FILE_LIST} ${TARFILE}"
 255 }
 256
 257 # Build the various tar files for the release.
 258
 259 build_tarfiles() {
 260   inform "Building tarfiles"
 261
 262   changedir "${WORKING_DIRECTORY}"
 263
 264   # The GNU Coding Standards specify that all files should
 265   # world readable.
 266   chmod -R a+r ${SOURCE_DIRECTORY}
 267   # And that all directories have mode 777.
 268   find ${SOURCE_DIRECTORY} -type d -exec chmod 777 {} \;
 269
 270   # Build one huge tarfile for the entire distribution.
 271   build_tarfile gcc-${RELEASE} `basename ${SOURCE_DIRECTORY}`
 272
 273   # Now, build one for each of the languages.
 274   build_tarfile gcc-ada-${RELEASE} ${ADA_DIRS}
 275   build_tarfile gcc-g++-${RELEASE} ${CPLUSPLUS_DIRS}
 276   build_tarfile gcc-g77-${RELEASE} ${FORTRAN_DIRS}
 277   build_tarfile gcc-java-${RELEASE} ${JAVA_DIRS}
 278   build_tarfile gcc-objc-${RELEASE} ${OBJECTIVEC_DIRS}
 279   build_tarfile gcc-testsuite-${RELEASE} ${TESTSUITE_DIRS}
 280
 281   # The core is everything else.
 282   EXCLUDES=""
 283   for x in ${ADA_DIRS} ${CPLUSPLUS_DIRS} ${FORTRAN_DIRS} \
 284            ${JAVA_DIRS} ${OBJECTIVEC_DIRS} ${TESTSUITE_DIRS}; do
 285     EXCLUDES="${EXCLUDES} --exclude $x"
 286   done
 287   build_tarfile gcc-core-${RELEASE} ${EXCLUDES} \
 288     `basename ${SOURCE_DIRECTORY}`
 289 }
 290
 291 # Build .gz files.
 292 build_gzip() {
 293   for f in ${FILE_LIST}; do
 294     target=${f%.bz2}.gz
 295     (${BZIP2} -d -c $f | ${GZIP} > ${target}) || error "Could not create ${target}"
 296   done
 297 }
 298
 299 # Build diffs against an old release.
 300 build_diffs() {
 301   old_dir=${1%/*}
 302   old_file=${1##*/}
 303   old_vers=${old_file%.tar.bz2}
 304   old_vers=${old_vers#gcc-}
 305   inform "Building diffs against version $old_vers"
 306   for f in gcc gcc-ada gcc-g++ gcc-g77 gcc-java gcc-objc gcc-testsuite gcc-core; do
 307     old_tar=${old_dir}/${f}-${old_vers}.tar.bz2
 308     new_tar=${WORKING_DIRECTORY}/${f}-${RELEASE}.tar.bz2
 309     if [ ! -e $old_tar ]; then
 310       inform "$old_tar not found; not generating diff file"
 311     elif [ ! -e $new_tar ]; then
 312       inform "$new_tar not found; not generating diff file"
 313     else
 314       build_diff $old_tar gcc-${old_vers} $new_tar gcc-${RELEASE} \
 315         ${f}-${old_vers}-${RELEASE}.diff.bz2
 316     fi
 317   done
 318 }
 319
 320 # Build an individual diff.
 321 build_diff() {
 322   changedir "${WORKING_DIRECTORY}"
 323   tmpdir=gccdiff.$$
 324   mkdir $tmpdir || error "Could not create directory $tmpdir"
 325   changedir $tmpdir
 326   (${BZIP2} -d -c $1 | ${TAR} xf - ) || error "Could not unpack $1 for diffs"
 327   (${BZIP2} -d -c $3 | ${TAR} xf - ) || error "Could not unpack $3 for diffs"
 328   ${DIFF} $2 $4 > ../${5%.bz2}
 329   if [ $? -eq 2 ]; then
 330     error "Trouble making diffs from $1 to $3"
 331   fi
 332   ${BZIP2} ../${5%.bz2} || error "Could not generate ../$5"
 333   changedir ..
 334   rm -rf $tmpdir
 335   FILE_LIST="${FILE_LIST} $5"
 336 }
 337
 338 # Upload the files to the FTP server.
 339 upload_files() {
 340   inform "Uploading files"
 341
 342   changedir "${WORKING_DIRECTORY}"
 343
 344   # Make sure the directory exists on the server.
 345   if [ $LOCAL -eq 0 ]; then
 346     ${SSH} -l ${GCC_USERNAME} ${GCC_HOSTNAME} \
 347       mkdir -p "${FTP_PATH}/diffs"
 348     UPLOAD_PATH="${GCC_USERNAME}@${GCC_HOSTNAME}:${FTP_PATH}"
 349   else
 350     mkdir -p "${FTP_PATH}/diffs" \
 351       || error "Could not create \`${FTP_PATH}'"
 352     UPLOAD_PATH=${FTP_PATH}
 353   fi
 354
 355   # Then copy files to their respective (sub)directories.
 356   for x in gcc*.gz gcc*.bz2; do
 357     if [ -e ${x} ]; then
 358       # Make sure the file will be readable on the server.
 359       chmod a+r ${x}
 360       # Copy it.
 361       case ${x} in
 362         *.diff.*)
 363           SUBDIR="diffs/";
 364           ;;
 365         *)
 366           SUBDIR="";
 367       esac
 368       ${SCP} ${x} ${UPLOAD_PATH}/${SUBDIR} \
 369         || error "Could not upload ${x}"
 370     fi
 371   done
 372 }
 373
 374 # Announce a snapshot, both on the web and via mail.
 375 announce_snapshot() {
 376   inform "Updating links and READMEs on the FTP server"
 377
 378   TEXT_DATE=`date --date=$DATE +%B\ %d,\ %Y`
 379   cd ~ftp/pub/gcc/snapshots
 380   sed -e "s%@DATE@%$DATE%g" -e "s%@LAST_DATE@%$LAST_DATE%g" \
 381     -e "s%@BRANCH@%${BRANCH}%g" \
 382     -e "s%@TEXT_DATE@%$TEXT_DATE%g" < ~/scripts/snapshot-README > $$
 383   mv $$ README
 384   sed -e "s%@DATE@%$DATE%g" -e "s%@LAST_DATE@%$LAST_DATE%g" \
 385     -e "s%@BRANCH@%${BRANCH}%g" \
 386     -e "s%@TEXT_DATE@%$TEXT_DATE%g" < ~/scripts/snapshot-index.html > $$
 387   mv $$ ${BRANCH}-${DATE}/index.html
 388
 389   touch LATEST-IS-${BRANCH}-${DATE}
 390   rm -f LATEST-IS-${BRANCH}-${LAST_DATE}
 391
 392   inform "Sending mail"
 393
 394   export QMAILHOST=gcc.gnu.org
 395   mail -s "gcc-ss-${BRANCH}-${DATE} is now available" gccadmin@gcc.gnu.org < ~ftp/pub/gcc/snapshots/README
 396 }
 397
 398 ########################################################################
 399 # Initialization
 400 ########################################################################
 401
 402 # Today's date.
 403 DATE=`date "+%Y%m%d"`
 404 LONG_DATE=`date "+%Y-%m-%d"`
 405
 406 # The CVS server containing the GCC repository.
 407 CVS_SERVER="gcc.gnu.org"
 408 # The path to the repository on that server.
 409 CVS_REPOSITORY="/cvs/gcc"
 410 # The CVS protocol to use.
 411 CVS_PROTOCOL="ext"
 412 # The username to use when connecting to the server.
 413 CVS_USERNAME="${USER}"
 414
 415 # The machine to which files will be uploaded.
 416 GCC_HOSTNAME="gcc.gnu.org"
 417 # The name of the account on the machine to which files are uploaded.
 418 GCC_USERNAME="gccadmin"
 419 # The directory in which the files will be placed.
 420 FTP_PATH="~ftp/pub/gcc"
 421
 422 # The major number for the release.  For release `3.0.2' this would be
 423 # `3'
 424 RELEASE_MAJOR=""
 425 # The minor number for the release.  For release `3.0.2' this would be
 426 # `0'.
 427 RELEASE_MINOR=""
 428 # The revision number for the release.  For release `3.0.2' this would
 429 # be `2'.
 430 RELEASE_REVISION=""
 431 # The complete name of the release.
 432 RELEASE=""
 433
 434 # The name of the branch from which the release should be made, in a
 435 # user-friendly form.
 436 BRANCH=""
 437
 438 # The name of the branch from which the release should be made, as used
 439 # for our version control system.
 440 CVSBRANCH=""
 441
 442 # The tag to apply to the sources used for the release.
 443 TAG=""
 444
 445 # The old tarballs from which to generate diffs.
 446 OLD_TARS=""
 447
 448 # The directory that will be used to construct the release.  The
 449 # release itself will be placed in a subdirectory of this diretory.
 450 DESTINATION=${HOME}
 451 # The subdirectory.
 452 WORKING_DIRECTORY=""
 453 # The directory that will contain the GCC sources.
 454 SOURCE_DIRECTORY=""
 455
 456 # The directories that should be part of the various language-specific
 457 # tar files.  These are all relative to the top of the source tree.
 458 ADA_DIRS="gcc/ada"
 459 CPLUSPLUS_DIRS="gcc/cp libstdc++-v3"
 460 FORTRAN_DIRS="gcc/f libf2c"
 461 JAVA_DIRS="gcc/java libjava libffi fastjar zlib boehm-gc"
 462 OBJECTIVEC_DIRS="gcc/objc libobjc"
 463 TESTSUITE_DIRS="gcc/testsuite"
 464
 465 # Non-zero if this is the final release, rather than a prerelease.
 466 FINAL=0
 467
 468 # Non-zero if we are building a snapshot, and don't build gcc or
 469 # include generated files.
 470 SNAPSHOT=0
 471
 472 # Non-zero if we are running locally on gcc.gnu.org, and use local CVS
 473 # and copy directly to the FTP directory.
 474 LOCAL=0
 475
 476 # Major operation modes.
 477 MODE_GZIP=0
 478 MODE_DIFFS=0
 479 MODE_SOURCES=0
 480 MODE_TARFILES=0
 481 MODE_UPLOAD=0
 482
 483 # List of archive files generated; used to create .gz files from .bz2.
 484 FILE_LIST=""
 485
 486 # Programs we use.
 487
 488 BZIP2="${BZIP2:-bzip2}"
 489 CVS="${CVS:-cvs -f -Q -z9}"
 490 DIFF="${DIFF:-diff -Nrc3pad}"
 491 ENV="${ENV:-env}"
 492 GZIP="${GZIP:-gzip --best}"
 493 SCP="${SCP:-scp -p}"
 494 SSH="${SSH:-ssh}"
 495 TAR="${TAR:-tar}"
 496
 497 ########################################################################
 498 # Command Line Processing
 499 ########################################################################
 500
 501 # Parse the options.
 502 while getopts "d:fr:u:t:p:sl" ARG; do
 503     case $ARG in
 504     d)    DESTINATION="${OPTARG}";;
 505     r)    RELEASE="${OPTARG}";;
 506     t)    TAG="${OPTARG}";;
 507     u)    CVS_USERNAME="${OPTARG}";;
 508     f)    FINAL=1;;
 509     s)    SNAPSHOT=1;;
 510     l)    LOCAL=1
 511           SCP=cp
 512           FTP_PATH=~ftp/pub/gcc
 513           PATH=~:/usr/local/bin:$PATH;;
 514     p)    OLD_TARS="${OLD_TARS} ${OPTARG}"
 515           if [ -d ${OPTARG} ]; then
 516             error "-p argument must name a tarball"
 517           fi;;
 518     \?)   usage;;
 519     esac
 520 done
 521 shift `expr ${OPTIND} - 1`
 522
 523 # Handle the major modes.
 524 while [ $# -ne 0 ]; do
 525     case $1 in
 526     diffs)    MODE_DIFFS=1;;
 527     gzip)     MODE_GZIP=1;;
 528     sources)  MODE_SOURCES=1;;
 529     tarfiles) MODE_TARFILES=1;;
 530     upload)   MODE_UPLOAD=1;;
 531     all)      MODE_SOURCES=1; MODE_TARFILES=1; MODE_DIFFS=1; MODE_UPLOAD=1;
 532               if [ $SNAPSHOT -ne 1 ]; then
 533                 # Only for releases and pre-releases.
 534                 MODE_GZIP=1;
 535               fi
 536               ;;
 537     *)        error "Unknown mode $1";;
 538     esac
 539     shift
 540 done
 541
 542 # Perform consistency checking.
 543 if [ ${LOCAL} -eq 0 ] && [ -z ${CVS_USERNAME} ]; then
 544   error "No username specified"
 545 fi
 546
 547 if [ ! -d ${DESTINATION} ]; then
 548   error "\`${DESTINATION}' is not a directory"
 549 fi
 550
 551 if [ $SNAPSHOT -eq 0 ]; then
 552   if [ -z ${RELEASE} ]; then
 553     error "No release number specified"
 554   fi
 555
 556   # Compute the major and minor release numbers.
 557   RELEASE_MAJOR=`echo $RELEASE | awk --assign FS=. '{ print $1; }'`
 558   RELEASE_MINOR=`echo $RELEASE | awk --assign FS=. '{ print $2; }'`
 559   RELEASE_REVISION=`echo $RELEASE | awk --assign FS=. '{ print $3; }'`
 560
 561   if [ -z "${RELEASE_MAJOR}" ] || [ -z "${RELEASE_MINOR}" ]; then
 562     error "Release number \`${RELEASE}' is invalid"
 563   fi
 564
 565   # Compute the full name of the release.
 566   if [ -z "${RELEASE_REVISION}" ]; then
 567     RELEASE="${RELEASE_MAJOR}.${RELEASE_MINOR}"
 568   else
 569     RELEASE="${RELEASE_MAJOR}.${RELEASE_MINOR}.${RELEASE_REVISION}"
 570   fi
 571
 572   # Compute the name of the branch, which is based solely on the major
 573   # and minor release numbers.
 574   CVSBRANCH="gcc-${RELEASE_MAJOR}_${RELEASE_MINOR}-branch"
 575
 576   # If this is not a final release, set various parameters acordingly.
 577   if [ ${FINAL} -ne 1 ]; then
 578     RELEASE="${RELEASE}-${DATE}"
 579     FTP_PATH="${FTP_PATH}/snapshots/"
 580   else
 581     FTP_PATH="${FTP_PATH}/releases/gcc-${RELEASE}/"
 582   fi
 583 else
 584   RELEASE=$DATE
 585   # For now snapshots come from the 3.3 branch.
 586   BRANCH="3.3"
 587   CVSBRANCH=gcc-3_3-branch
 588   FTP_PATH="${FTP_PATH}/snapshots/${BRANCH}-${DATE}"
 589   TAG=gcc-ss-`echo ${BRANCH} | tr '.' '_'`-${DATE}
 590
 591   # Building locally on gcc.gnu.org, we know what the last snapshot date
 592   # was.
 593   if [ $MODE_DIFFS -ne 0 ] && [ $LOCAL -ne 0 ]; then
 594     LAST_DATE=`cat ~/.snapshot_date-${BRANCH}`
 595     LAST_DIR=~ftp/pub/gcc/snapshots/${BRANCH}-${LAST_DATE}
 596     OLD_TARS=${LAST_DIR}/gcc-${LAST_DATE}.tar.bz2
 597   fi
 598 fi
 599
 600 # Compute the name of the WORKING_DIRECTORY and the SOURCE_DIRECTORY.
 601 WORKING_DIRECTORY="${DESTINATION}/gcc-${RELEASE}"
 602 SOURCE_DIRECTORY="${WORKING_DIRECTORY}/gcc-${RELEASE}"
 603
 604 # Recompute the names of all the language-specific directories,
 605 # relative to the WORKING_DIRECTORY.
 606 ADA_DIRS=`adjust_dirs ${ADA_DIRS}`
 607 CPLUSPLUS_DIRS=`adjust_dirs ${CPLUSPLUS_DIRS}`
 608 FORTRAN_DIRS=`adjust_dirs ${FORTRAN_DIRS}`
 609 JAVA_DIRS=`adjust_dirs ${JAVA_DIRS}`
 610 OBJECTIVEC_DIRS=`adjust_dirs ${OBJECTIVEC_DIRS}`
 611 TESTSUITE_DIRS=`adjust_dirs ${TESTSUITE_DIRS}`
 612
 613 # Set up CVSROOT.
 614 if [ $LOCAL -eq 0 ]; then
 615     CVSROOT=":${CVS_PROTOCOL}:${CVS_USERNAME}@"
 616     CVSROOT="${CVSROOT}${CVS_SERVER}:${CVS_REPOSITORY}"
 617 else
 618     CVSROOT="${CVS_REPOSITORY}"
 619 fi
 620 export CVSROOT
 621
 622 ########################################################################
 623 # Main Program
 624 ########################################################################
 625
 626 # Set the timezone to UTC
 627 TZ="UTC0"
 628 export TZ
 629
 630 # Build the source directory.
 631
 632 if [ $MODE_SOURCES -ne 0 ]; then
 633   build_sources
 634 fi
 635
 636 # Build the tar files.
 637
 638 if [ $MODE_TARFILES -ne 0 ]; then
 639   build_tarfiles
 640 fi
 641
 642 # Build diffs
 643
 644 if [ $MODE_DIFFS -ne 0 ]; then
 645   # Possibly build diffs.
 646   if [ -n "$OLD_TARS" ]; then
 647     for old_tar in $OLD_TARS; do
 648       build_diffs $old_tar
 649     done
 650   fi
 651 fi
 652
 653 # Build gzip files
 654 if [ $MODE_GZIP -ne 0 ]; then
 655   build_gzip
 656 fi
 657
 658 # Upload them to the FTP server.
 659
 660 if [ $MODE_UPLOAD -ne 0 ]; then
 661   upload_files
 662
 663   # For snapshots, make some further updates.
 664   if [ $SNAPSHOT -ne 0 ] && [ $LOCAL -ne 0 ]; then
 665     announce_snapshot
 666
 667     # Update snapshot date file.
 668     changedir ~
 669     echo $DATE > .snapshot_date-${BRANCH}
 670
 671     # Remove working directory
 672     rm -rf ${WORKING_DIRECTORY}
 673   fi
 674 fi