contrib/gcc_update

   1 #! /bin/sh
   2 #
   3 # Update a local CVS tree from the GCC repository, with an emphasis
   4 # on treating generated files correctly, so that autoconf, gperf et
   5 # al are not required for the ``end'' user.
   6 #
   7 # By default all command-line options are passed to `cvs update` in
   8 # addition to $UPDATE_OPTIONS (defined below). If the first parameter
   9 # reads --nostdflags, $UPDATE_OPTIONS as well as this parameter itself
  10 # are omitted.
  11 #
  12 # If the first parameter reads --patch, the second parameter is considered
  13 # a patch file.
  14 #
  15 # If the first parameter is --touch, no cvs operation will be performed,
  16 # only generated files that appear to be out of date in the local tree
  17 # will be touched.
  18 #
  19 # If the first parameter is --list, a list of the generated files and
  20 # their dependencies will be printed; --help prints this message.
  21 #
  22 # Examples:
  23 #
  24 # contrib/gcc_update -r gcc_latest_snapshot
  25 # contrib/gcc_update -A
  26 # contrib/gcc_update --nostdflags -P -r gcc-2_95-branch gcc/testsuite
  27 # contrib/gcc_update --patch some-patch
  28 # contrib/gcc_update --touch
  29 # contrib/gcc_update --list
  30 #
  31 #
  32 # (C) 1998, 1999, 2000, 2001, 2002, 2003, 2004 Free Software Foundation
  33 # Originally by Gerald Pfeifer <pfeifer@dbai.tuwien.ac.at>, August 1998.
  34 #
  35 # This script is Free Software, and it can be copied, distributed and
  36 # modified as defined in the GNU General Public License.  A copy of
  37 # its license can be downloaded from http://www.gnu.org/copyleft/gpl.html
  38
  39
  40 # CVS command
  41 GCC_CVS=${GCC_CVS-${CVS-cvs}}
  42 # Default options used when updating via CVS.
  43 UPDATE_OPTIONS=-Pd
  44 # Use -P to prune empty directories.
  45 # Use -d to create any directories that exist in the repository but not
  46 #           locally.
  47 # Use -A to reset any sticky tags, dates, or `-k' options.
  48
  49 ######## Anything below shouldn't be changed by regular users.
  50
  51 # Arrange for the value of $0 to be available for functions
  52 self=$0
  53
  54 # This function prints a list of all generated files, along with their
  55 # dependencies.  Note that only one target is supported per line: the
  56 # colon is stripped from the output.
  57 files_and_dependencies () {
  58     sed -e 's/ *#.*//' -e '/^$/d' -e 's/://' <<\EOF
  59 # intl library
  60 intl/plural.c: intl/plural.y
  61 intl/configure: intl/configure.ac intl/aclocal.m4
  62 intl/config.h.in: intl/configure.ac intl/aclocal.m4
  63 # Now, proceed to gcc automatically generated files
  64 gcc/configure: gcc/configure.ac
  65 gcc/cstamp-h.in: gcc/configure.ac
  66 gcc/config.in: gcc/cstamp-h.in
  67 gcc/fixinc/fixincl.x: gcc/fixinc/fixincl.tpl gcc/fixinc/inclhack.def
  68 # And then, language-specific files
  69 gcc/f/intdoc.texi: gcc/f/intdoc.in gcc/f/intdoc.c gcc/f/intrin.h gcc/f/intrin.def
  70 gcc/cp/cfns.h: gcc/cp/cfns.gperf
  71 gcc/java/keyword.h: gcc/java/keyword.gperf
  72 gcc/ada/gnat_ug_unx.texi: gcc/ada/gnat_ug.texi gcc/ada/xgnatug.adb gcc/ada/ug_words
  73 gcc/ada/gnat_ug_vms.texi: gcc/ada/gnat_ug.texi gcc/ada/xgnatug.adb gcc/ada/ug_words
  74 gcc/ada/gnat_ug_vxw.texi: gcc/ada/gnat_ug.texi gcc/ada/xgnatug.adb gcc/ada/ug_words
  75 gcc/ada/gnat_ug_wnt.texi: gcc/ada/gnat_ug.texi gcc/ada/xgnatug.adb gcc/ada/ug_words
  76 # testsuite
  77 # Without this, _Pragma3.c can have a false negative.
  78 gcc/testsuite/gcc.dg/cpp/_Pragma3.c: gcc/testsuite/gcc.dg/cpp/mi1c.h
  79 # And libraries, at last
  80 libf2c/configure: libf2c/configure.in
  81 libf2c/libF77/configure: libf2c/libF77/configure.in
  82 libf2c/libI77/configure: libf2c/libI77/configure.in
  83 libf2c/libI77/stamp-h.in: libf2c/libI77/configure.in
  84 libf2c/libI77/config.h.in: libf2c/libI77/configure.in libf2c/libI77/stamp-h.in
  85 libf2c/libU77/configure: libf2c/libU77/configure.in
  86 libf2c/libU77/stamp-h.in: libf2c/libU77/configure.in libf2c/libU77/acconfig.h
  87 libobjc/configure: libobjc/configure.in
  88 # fastjar
  89 fastjar/aclocal.m4: fastjar/configure.ac
  90 fastjar/Makefile.in: fastjar/Makefile.am fastjar/configure.ac fastjar/aclocal.m4
  91 fastjar/configure: fastjar/configure.ac fastjar/aclocal.m4
  92 boehm-gc/aclocal.m4: boehm-gc/configure.in boehm-gc/acinclude.m4
  93 boehm-gc/Makefile.in: boehm-gc/Makefile.am boehm-gc/configure.in boehm-gc/aclocal.m4
  94 boehm-gc/configure: boehm-gc/configure.in boehm-gc/aclocal.m4
  95 libada/configure: configure.ac
  96 libjava/aclocal.m4: libjava/configure.in libjava/acinclude.m4
  97 libjava/Makefile.in: libjava/Makefile.am libjava/configure.in libjava/aclocal.m4
  98 libjava/configure: libjava/configure.in libjava/aclocal.m4
  99 libjava/libltdl/aclocal.m4: libjava/libltdl/configure.ac libjava/libltdl/acinclude.m4
 100 libjava/libltdl/Makefile.in: libjava/libltdl/Makefile.am libjava/libltdl/configure.ac libjava/libltdl/aclocal.m4
 101 libjava/libltdl/configure: libjava/libltdl/configure.ac libjava/libltdl/aclocal.m4
 102 libjava/libltdl/config-h.in: libjava/libltdl/configure.ac libjava/libltdl/aclocal.m4
 103 # Top level
 104 Makefile.in: Makefile.tpl Makefile.def
 105 configure: configure.in config/acx.m4
 106 EOF
 107 }
 108
 109
 110 # This function touches generated files such that the ``end'' user does
 111 # not have to rebuild them.
 112 touch_files () {
 113     rm -f Makefile.$$
 114     echo 'all: \' > Makefile.$$
 115     files_and_dependencies | sed 's, .*, \\,' >> Makefile.$$
 116     echo '; @true' >> Makefile.$$
 117     files_and_dependencies | sed 's, ,: ,' >> Makefile.$$
 118     files_and_dependencies | sed 's, .*, \\,' >> Makefile.$$
 119     echo ':' >> Makefile.$$
 120     echo '      @for f in $? $@; do test -f $$f || exit 0; done; \' >> Makefile.$$
 121     echo '      echo Touching $@...; \' >> Makefile.$$
 122     echo '      echo Touching $@... 1>&2; \' >> Makefile.$$
 123     echo '      touch $@' >> Makefile.$$
 124     files_and_dependencies | sed 's,[^ ]* ,,;s,$, :,' >> Makefile.$$
 125     while ${MAKE-make} -s -f Makefile.$$ all | grep . > /dev/null; do
 126       sleep 1
 127     done 2>&1
 128     rm -f Makefile.$$
 129 }
 130
 131
 132 # Whenever we update the tree or install a patch, we may be modifying
 133 # this script.  By re-execing it, we ensure that the appropriate
 134 # dependencies and rules will be used.
 135 touch_files_reexec () {
 136     echo "Adjusting file timestamps"
 137     exec ${CONFIG_SHELL-/bin/sh} $self --touch
 138 }
 139
 140 # This functions applies a patch to an existing tree.
 141 apply_patch () {
 142     if [ -f $1 ]; then
 143         echo "Applying patch file $1"
 144         case "$1" in
 145         *gz)
 146             gzip -d -c $1 | patch -p1 ;;
 147         *bz2)
 148             bzip2 -d -c $1 | patch -p1 ;;
 149         *)
 150             cat $1 | patch -p1 ;;
 151         esac
 152     fi
 153     touch_files_reexec
 154 }
 155
 156 # Check whether this indeed looks like a local tree.
 157 if [ ! -f gcc/version.c ]; then
 158     echo "This does not seem to be a GCC tree!"
 159     exit
 160 fi
 161
 162 case "$1" in
 163 # First of all, check whether we are going to process a patch.
 164 --patch)
 165     if test "$#" != 2; then
 166         echo "$1" expects only one argument >&2
 167         exit 1
 168     fi
 169     apply_patch "${2}"
 170     exit $?
 171     ;;
 172
 173 --touch)
 174     if test "$#" != 1; then
 175         echo "$1" does not expect any argument >&2
 176         exit 1
 177     fi
 178     touch_files
 179     exit $?
 180     ;;
 181
 182 --list)
 183     if test "$#" != 1; then
 184         echo "$1" does not expect any argument >&2
 185         exit 1
 186     fi
 187     files_and_dependencies | sed 's/ /: /'
 188     exit $?
 189     ;;
 190
 191 --help)
 192     sed -e '1,2d' -e '/^UPDATE_OPTIONS=/{i\
 193 \
 194
 195 p
 196 }' \
 197         -e '/^$/,$d' -e 's/#//' -e 's/^ //' < $0
 198     exit $?
 199     ;;
 200
 201 esac
 202
 203 # Check whether this indeed looks like a local CVS tree.
 204 if [ ! -d CVS ]; then
 205     echo "This does not seem to be a GCC CVS tree!"
 206     exit
 207 fi
 208
 209 # Check command-line options
 210 if [ x"${1}"x = x"--nostdflags"x ]; then
 211     shift
 212 else
 213     set -- $UPDATE_OPTIONS ${1+"$@"}
 214 fi
 215
 216 echo "Updating CVS tree"
 217 $GCC_CVS -q update ${1+"$@"}
 218 if [ $? -ne 0 ]; then
 219     (touch_files_reexec)
 220     echo "CVS update of full tree failed." >&2
 221     exit 1
 222 fi
 223
 224 {
 225   date
 226   TZ=UTC date
 227 } > LAST_UPDATED
 228 touch_files_reexec