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, $UPDATE_OPTIONS as well as this parameter itself
  10 # are omitted.
  11 #
  12 # If the first parameter reads --patch, the second parameter is considered
  13 # a patch file.
  14 #
  15 # If the first parameter is --touch, no cvs operation will be performed,
  16 # only generated files that appear to be out of date in the local tree
  17 # will be touched.
  18 #
  19 # If the first parameter is --list, a list of the generated files and
  20 # their dependencies will be printed; --help prints this message.
  21 #
  22 # Examples:
  23 #
  24 # contrib/gcc_update -r gcc_latest_snapshot
  25 # contrib/gcc_update -A
  26 # contrib/gcc_update --nostdflags -P -r gcc-2_95-branch gcc/testsuite
  27 # contrib/gcc_update --patch some-patch
  28 # contrib/gcc_update --touch
  29 # contrib/gcc_update --list
  30 #
  31 #
  32 # (C) 1998, 1999, 2000, 2001, 2002, 2003 Free Software Foundation
  33 # Originally by Gerald Pfeifer <pfeifer@dbai.tuwien.ac.at>, August 1998.
  34 #
  35 # This script is Free Software, and it can be copied, distributed and
  36 # modified as defined in the GNU General Public License.  A copy of
  37 # its license can be downloaded from http://www.gnu.org/copyleft/gpl.html
  38
  39
  40 # CVS command
  41 GCC_CVS=${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 # All automake dependencies within texinfo
  60 # In fact, not all, since we do not care about sub-directories that
  61 # we do not build.  In particular, *.po and *.gmo are not touched.
  62 texinfo/aclocal.m4: texinfo/configure.in texinfo/acinclude.m4
  63 texinfo/Makefile.in: texinfo/Makefile.am texinfo/configure.in texinfo/aclocal.m4
  64 texinfo/configure: texinfo/configure.in texinfo/aclocal.m4
  65 texinfo/stamp-h.in: texinfo/configure.in texinfo/aclocal.m4 texinfo/acconfig.h
  66 texinfo/lib/Makefile.in: texinfo/lib/Makefile.am texinfo/configure.in texinfo/aclocal.m4
  67 texinfo/makeinfo/Makefile.in: texinfo/makeinfo/Makefile.am texinfo/configure.in texinfo/aclocal.m4
  68 texinfo/util/Makefile.in: texinfo/util/Makefile.am texinfo/configure.in texinfo/aclocal.m4
  69 # intl library
  70 intl/plural.c: intl/plural.y
  71 intl/configure: intl/configure.in intl/aclocal.m4
  72 intl/config.h.in: intl/configure.in intl/aclocal.m4
  73 # Now, proceed to gcc automatically generated files
  74 gcc/configure: gcc/configure.in
  75 gcc/cstamp-h.in: gcc/configure.in
  76 gcc/config.in: gcc/cstamp-h.in
  77 gcc/fixinc/fixincl.x: gcc/fixinc/fixincl.tpl gcc/fixinc/inclhack.def
  78 # And then, language-specific files
  79 gcc/f/intdoc.texi: gcc/f/intdoc.in gcc/f/intdoc.c gcc/f/intrin.h gcc/f/intrin.def
  80 gcc/cp/cfns.h: gcc/cp/cfns.gperf
  81 gcc/java/keyword.h: gcc/java/keyword.gperf
  82 gcc/ada/treeprs.ads: gcc/ada/treeprs.adt gcc/ada/sinfo.ads gcc/ada/xtreeprs.adb
  83 gcc/ada/einfo.h: gcc/ada/einfo.ads gcc/ada/einfo.adb gcc/ada/xeinfo.adb
  84 gcc/ada/sinfo.h: gcc/ada/sinfo.ads gcc/ada/xsinfo.adb
  85 gcc/ada/nmake.adb: gcc/ada/sinfo.ads gcc/ada/nmake.adt gcc/ada/xnmake.adb
  86 gcc/ada/nmake.ads: gcc/ada/sinfo.ads gcc/ada/nmake.adt gcc/ada/xnmake.adb
  87 gcc/ada/gnat_ug_unx.texi: gcc/ada/gnat_ug.texi gcc/ada/xgnatug.adb gcc/ada/ug_words
  88 gcc/ada/gnat_ug_vms.texi: gcc/ada/gnat_ug.texi gcc/ada/xgnatug.adb gcc/ada/ug_words
  89 gcc/ada/gnat_ug_vxw.texi: gcc/ada/gnat_ug.texi gcc/ada/xgnatug.adb gcc/ada/ug_words
  90 gcc/ada/gnat_ug_w32.texi: gcc/ada/gnat_ug.texi gcc/ada/xgnatug.adb gcc/ada/ug_words
  91 # testsuite
  92 # Without this, _Pragma3.c can have a false negative.
  93 gcc/testsuite/gcc.dg/cpp/_Pragma3.c: gcc/testsuite/gcc.dg/cpp/mi1c.h
  94 # And libraries, at last
  95 libf2c/configure: libf2c/configure.in
  96 libf2c/libF77/configure: libf2c/libF77/configure.in
  97 libf2c/libI77/configure: libf2c/libI77/configure.in
  98 libf2c/libI77/stamp-h.in: libf2c/libI77/configure.in
  99 libf2c/libI77/config.h.in: libf2c/libI77/configure.in libf2c/libI77/stamp-h.in
 100 libf2c/libU77/configure: libf2c/libU77/configure.in
 101 libf2c/libU77/stamp-h.in: libf2c/libU77/configure.in libf2c/libU77/acconfig.h
 102 libobjc/configure: libobjc/configure.in
 103 # fastjar
 104 fastjar/aclocal.m4: fastjar/configure.in
 105 fastjar/Makefile.in: fastjar/Makefile.am fastjar/configure.in fastjar/aclocal.m4
 106 fastjar/configure: fastjar/configure.in fastjar/aclocal.m4
 107 fastjar/stamp-h.in: fastjar/configure.in fastjar/aclocal.m4
 108 boehm-gc/aclocal.m4: boehm-gc/configure.in boehm-gc/acinclude.m4
 109 boehm-gc/Makefile.in: boehm-gc/Makefile.am boehm-gc/configure.in boehm-gc/aclocal.m4
 110 boehm-gc/configure: boehm-gc/configure.in boehm-gc/aclocal.m4
 111 libjava/aclocal.m4: libjava/configure.in libjava/acinclude.m4
 112 libjava/Makefile.in: libjava/Makefile.am libjava/configure.in libjava/aclocal.m4
 113 libjava/configure: libjava/configure.in libjava/aclocal.m4
 114 libjava/libltdl/aclocal.m4: libjava/libltdl/configure.in libjava/libltdl/acinclude.m4
 115 libjava/libltdl/Makefile.in: libjava/libltdl/Makefile.am libjava/libltdl/configure.in libjava/libltdl/aclocal.m4
 116 libjava/libltdl/configure: libjava/libltdl/configure.in libjava/libltdl/aclocal.m4
 117 libjava/libltdl/stamp-h.in: libjava/libltdl/configure.in libjava/libltdl/aclocal.m4 libjava/libltdl/acconfig.h
 118 # Top level
 119 Makefile.in: Makefile.tpl Makefile.def
 120 configure: configure.in config/acx.m4
 121 EOF
 122 }
 123
 124
 125 # This function touches generated files such that the ``end'' user does
 126 # not have to rebuild them.
 127 touch_files () {
 128     rm -f Makefile.$$
 129     echo 'all: \' > Makefile.$$
 130     files_and_dependencies | sed 's, .*, \\,' >> Makefile.$$
 131     echo '; @true' >> Makefile.$$
 132     files_and_dependencies | sed 's, ,: ,' >> Makefile.$$
 133     files_and_dependencies | sed 's, .*, \\,' >> Makefile.$$
 134     echo ':' >> Makefile.$$
 135     echo '      @for f in $? $@; do test -f $$f || exit 0; done; \' >> Makefile.$$
 136     echo '      echo Touching $@...; \' >> Makefile.$$
 137     echo '      echo Touching $@... 1>&2; \' >> Makefile.$$
 138     echo '      touch $@' >> Makefile.$$
 139     files_and_dependencies | sed 's,[^ ]* ,,;s,$, :,' >> Makefile.$$
 140     while ${MAKE-make} -s -f Makefile.$$ all | grep . > /dev/null; do
 141       sleep 1
 142     done 2>&1
 143     rm -f Makefile.$$
 144 }
 145
 146
 147 # Whenever we update the tree or install a patch, we may be modifying
 148 # this script.  By re-execing it, we ensure that the appropriate
 149 # dependencies and rules will be used.
 150 touch_files_reexec () {
 151     echo "Adjusting file timestamps"
 152     exec ${CONFIG_SHELL-/bin/sh} $self --touch
 153 }
 154
 155 # This functions applies a patch to an existing tree.
 156 apply_patch () {
 157     if [ -f $1 ]; then
 158         echo "Applying patch file $1"
 159         case "$1" in
 160         *gz)
 161             gzip -d -c $1 | patch -p1 ;;
 162         *bz2)
 163             bzip2 -d -c $1 | patch -p1 ;;
 164         *)
 165             cat $1 | patch -p1 ;;
 166         esac
 167     fi
 168     touch_files_reexec
 169 }
 170
 171 # Check whether this indeed looks like a local tree.
 172 if [ ! -f gcc/version.c ]; then
 173     echo "This does not seem to be a GCC tree!"
 174     exit
 175 fi
 176
 177 case "$1" in
 178 # First of all, check whether we are going to process a patch.
 179 --patch)
 180     if test "$#" != 2; then
 181         echo "$1" expects only one argument >&2
 182         exit 1
 183     fi
 184     apply_patch "${2}"
 185     exit $?
 186     ;;
 187
 188 --touch)
 189     if test "$#" != 1; then
 190         echo "$1" does not expect any argument >&2
 191         exit 1
 192     fi
 193     touch_files
 194     exit $?
 195     ;;
 196
 197 --list)
 198     if test "$#" != 1; then
 199         echo "$1" does not expect any argument >&2
 200         exit 1
 201     fi
 202     files_and_dependencies | sed 's/ /: /'
 203     exit $?
 204     ;;
 205
 206 --help)
 207     sed -e '1,2d' -e '/^UPDATE_OPTIONS=/{i\
 208 \
 209
 210 p
 211 }' \
 212         -e '/^$/,$d' -e 's/#//' -e 's/^ //' < $0
 213     exit $?
 214     ;;
 215
 216 esac
 217
 218 # Check whether this indeed looks like a local CVS tree.
 219 if [ ! -d CVS ]; then
 220     echo "This does not seem to be a GCC CVS tree!"
 221     exit
 222 fi
 223
 224 # Check command-line options
 225 if [ x"${1}"x = x"--nostdflags"x ]; then
 226     shift
 227 else
 228     set -- $UPDATE_OPTIONS ${1+"$@"}
 229 fi
 230
 231 echo "Updating CVS tree"
 232 $GCC_CVS -q update ${1+"$@"}
 233 if [ $? -ne 0 ]; then
 234     (touch_files_reexec)
 235     echo "CVS update of full tree failed." >&2
 236     exit 1
 237 fi
 238
 239 {
 240   date
 241   TZ=UTC date
 242 } > LAST_UPDATED
 243 touch_files_reexec