contrib/gcc_update

   1 #! /bin/sh
   2 #
   3 # Update a local Subversion 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 # (C) 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005 Free Software Foundation
   8 # Originally by Gerald Pfeifer <pfeifer@dbai.tuwien.ac.at>, August 1998.
   9 #
  10 # This script is Free Software, and it can be copied, distributed and
  11 # modified as defined in the GNU General Public License.  A copy of
  12 # its license can be downloaded from http://www.gnu.org/copyleft/gpl.html
  13 #
  14 #
  15 # By default all command-line options are passed to `svn update` in
  16 # addition to $UPDATE_OPTIONS (defined below). If the first parameter
  17 # reads --nostdflags, $UPDATE_OPTIONS as well as this parameter itself
  18 # are omitted.
  19 #
  20 # If the first parameter reads --patch, the second parameter is considered
  21 # a patch file.
  22 #
  23 # If the first parameter is --touch, no svn operation will be performed,
  24 # only generated files that appear to be out of date in the local tree
  25 # will be touched.
  26 #
  27 # If the first parameter is --list, a list of the generated files and
  28 # their dependencies will be printed; --help prints this message.
  29 #
  30 # If the first parameter is --silent, this script prints nothing other
  31 # than error messages; the second parameter is then interpreted as above.
  32 #
  33 # Examples:
  34 #
  35 # contrib/gcc_update -r 8712
  36 # contrib/gcc_update --patch some-patch
  37 # contrib/gcc_update --touch
  38 # contrib/gcc_update --list
  39
  40
  41 # SVN command
  42 GCC_SVN=${GCC_SVN-${SVN-svn}}
  43 # Default options used when updating via SVN (none).
  44 UPDATE_OPTIONS=""
  45
  46 ######## Anything below shouldn't be changed by regular users.
  47
  48 # Arrange for the value of $0 to be available for functions
  49 self=$0
  50
  51 # This function prints its arguments to standard output unless
  52 # "silent" is set.
  53 unset silent
  54 chat () {
  55     if [ -z "$silent" ]; then
  56         echo "$@"
  57     fi
  58 }
  59
  60 # This function prints a list of all generated files, along with their
  61 # dependencies.  Note that only one target is supported per line: the
  62 # colon is stripped from the output.
  63 files_and_dependencies () {
  64     sed -e 's/ *#.*//' -e '/^$/d' -e 's/://' <<\EOF
  65 # intl library
  66 intl/plural.c: intl/plural.y
  67 intl/configure: intl/configure.in intl/aclocal.m4
  68 intl/config.h.in: intl/configure.in intl/aclocal.m4
  69 # Now, proceed to gcc automatically generated files
  70 gcc/configure: gcc/configure.ac
  71 gcc/cstamp-h.in: gcc/configure.ac
  72 gcc/config.in: gcc/cstamp-h.in
  73 gcc/fixinc/fixincl.x: gcc/fixinc/fixincl.tpl gcc/fixinc/inclhack.def
  74 # And then, language-specific files
  75 gcc/f/intdoc.texi: gcc/f/intdoc.in gcc/f/intdoc.c gcc/f/intrin.h gcc/f/intrin.def
  76 gcc/cp/cfns.h: gcc/cp/cfns.gperf
  77 gcc/java/keyword.h: gcc/java/keyword.gperf
  78 # testsuite
  79 # Without this, _Pragma3.c can have a false negative.
  80 gcc/testsuite/gcc.dg/cpp/_Pragma3.c: gcc/testsuite/gcc.dg/cpp/mi1c.h
  81 # And libraries, at last
  82 libf2c/configure: libf2c/configure.in
  83 libf2c/libF77/configure: libf2c/libF77/configure.in
  84 libf2c/libI77/configure: libf2c/libI77/configure.in
  85 libf2c/libI77/stamp-h.in: libf2c/libI77/configure.in
  86 libf2c/libI77/config.h.in: libf2c/libI77/configure.in libf2c/libI77/stamp-h.in
  87 libf2c/libU77/configure: libf2c/libU77/configure.in
  88 libf2c/libU77/stamp-h.in: libf2c/libU77/configure.in libf2c/libU77/acconfig.h
  89 libobjc/configure: libobjc/configure.in
  90 # fastjar
  91 fastjar/aclocal.m4: fastjar/configure.ac
  92 fastjar/Makefile.in: fastjar/Makefile.am fastjar/configure.ac fastjar/aclocal.m4
  93 fastjar/configure: fastjar/configure.ac fastjar/aclocal.m4
  94 boehm-gc/aclocal.m4: boehm-gc/configure.in boehm-gc/acinclude.m4
  95 boehm-gc/Makefile.in: boehm-gc/Makefile.am boehm-gc/configure.in boehm-gc/aclocal.m4
  96 boehm-gc/configure: boehm-gc/configure.in boehm-gc/aclocal.m4
  97 libjava/aclocal.m4: libjava/configure.in libjava/acinclude.m4
  98 libjava/Makefile.in: libjava/Makefile.am libjava/configure.in libjava/aclocal.m4
  99 libjava/configure: libjava/configure.in libjava/aclocal.m4
 100 libjava/libltdl/aclocal.m4: libjava/libltdl/configure.ac libjava/libltdl/acinclude.m4
 101 libjava/libltdl/Makefile.in: libjava/libltdl/Makefile.am libjava/libltdl/configure.ac libjava/libltdl/aclocal.m4
 102 libjava/libltdl/configure: libjava/libltdl/configure.ac libjava/libltdl/aclocal.m4
 103 libjava/libltdl/config-h.in: libjava/libltdl/configure.ac libjava/libltdl/aclocal.m4
 104 # Top level
 105 Makefile.in: Makefile.tpl Makefile.def
 106 configure: configure.in config/acx.m4
 107 EOF
 108 }
 109
 110
 111 # This function touches generated files such that the ``end'' user does
 112 # not have to rebuild them.
 113 touch_files () {
 114     rm -f Makefile.$$
 115     echo 'all: \' > Makefile.$$
 116     files_and_dependencies | sed 's, .*, \\,' >> Makefile.$$
 117     echo '; @true' >> Makefile.$$
 118     files_and_dependencies | sed 's, ,: ,' >> Makefile.$$
 119     files_and_dependencies | sed 's, .*, \\,' >> Makefile.$$
 120     echo ':' >> Makefile.$$
 121     echo '      @for f in $? $@; do test -f $$f || exit 0; done; \' >> Makefile.$$
 122     echo '      echo Touching $@...; \' >> Makefile.$$
 123     chat '      echo Touching $@... 1>&2; \' >> Makefile.$$
 124     echo '      touch $@' >> Makefile.$$
 125     files_and_dependencies | sed 's,[^ ]* ,,;s,$, :,' >> Makefile.$$
 126     while ${MAKE-make} -s -f Makefile.$$ all | grep . > /dev/null; do
 127       sleep 1
 128     done 2>&1
 129     rm -f Makefile.$$
 130 }
 131
 132
 133 # Whenever we update the tree or install a patch, we may be modifying
 134 # this script.  By re-execing it, we ensure that the appropriate
 135 # dependencies and rules will be used.
 136 touch_files_reexec () {
 137     chat "Adjusting file timestamps"
 138     exec ${CONFIG_SHELL-/bin/sh} $self ${silent+"--silent"} --touch
 139 }
 140
 141 # This functions applies a patch to an existing tree.
 142 apply_patch () {
 143     if [ -f "$1" ]; then
 144         echo "Applying patch file $1"
 145         case $1 in
 146         *gz)
 147             gzip -d -c "$1" | patch -p1 ;;
 148         *bz2)
 149             bzip2 -d -c "$1" | patch -p1 ;;
 150         *)
 151             patch -p1 < "$1";;
 152         esac
 153     fi
 154     touch_files_reexec
 155 }
 156
 157 # Check whether this indeed looks like a local tree.
 158 if [ ! -f gcc/version.c ]; then
 159     echo "This does not seem to be a GCC tree!"
 160     exit
 161 fi
 162
 163 case "$1" in
 164 --silent)
 165     silent=t
 166     shift
 167     ;;
 168 esac
 169
 170 case "$1" in
 171 # First of all, check whether we are going to process a patch.
 172 --patch)
 173     if test "$#" != 2; then
 174         echo "$1" expects only one argument >&2
 175         exit 1
 176     fi
 177     apply_patch "${2}"
 178     exit $?
 179     ;;
 180
 181 --touch)
 182     if test "$#" != 1; then
 183         echo "$1" does not expect any argument >&2
 184         exit 1
 185     fi
 186     touch_files
 187     exit $?
 188     ;;
 189
 190 --list)
 191     if test "$#" != 1; then
 192         echo "$1" does not expect any argument >&2
 193         exit 1
 194     fi
 195     files_and_dependencies | sed 's/ /: /'
 196     exit $?
 197     ;;
 198
 199 --help)
 200     sed -e '1,2d' -e '/^UPDATE_OPTIONS=/{i\
 201 \
 202
 203 p
 204 }' \
 205         -e '/^$/,$d' -e 's/#//' -e 's/^ //' < $0
 206     exit $?
 207     ;;
 208
 209 esac
 210
 211 # Check whether this indeed looks like a local SVN tree.
 212 if [ ! -d .svn ]; then
 213     echo "This does not seem to be a GCC SVN tree!"
 214     exit
 215 fi
 216
 217 # Check command-line options
 218 if [ x"${1}"x = x"--nostdflags"x ]; then
 219     shift
 220 else
 221     set -- $UPDATE_OPTIONS ${1+"$@"}
 222 fi
 223
 224 chat "Updating SVN tree"
 225
 226 $GCC_SVN ${silent+-q}  --non-interactive update ${1+"$@"}
 227 if [ $? -ne 0 ]; then
 228     (touch_files_reexec)
 229     echo "SVN update of full tree failed." >&2
 230     exit 1
 231 fi
 232
 233 {
 234   date
 235   echo "`TZ=UTC date` (revision `svnversion .`)"
 236 } > LAST_UPDATED
 237 touch_files_reexec