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  16 # only generated files that appear to be out of date in the local tree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 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 # Default options used when updating via CVS.
  41 UPDATE_OPTIONS=-Pd
  42 # Use -P to prune empty directories.
  43 # Use -d to create any directories that exist in the repository but not
  44 #           locally.
  45 # Use -A to reset any sticky tags, dates, or `-k' options.
  46
  47 ######## Anything below shouldn't be changed by regular users.
  48
  49 # Arrange for the value of $0 to be available for functions
  50 self=$0
  51
  52 # This function prints a list of all generated files, along with their
  53 # dependencies.  Note that only one target is supported per line: the
  54 # colon is stripped from the output.
  55 files_and_dependencies () {
  56     sed -e 's/ *#.*//' -e '/^$/d' -e 's/://' <<\EOF
  57 # All automake dependencies within texinfo
  58 # In fact, not all, since we do not care about sub-directories that
  59 # we do not build.  In particular, *.po and *.gmo are not touched.
  60 texinfo/aclocal.m4: texinfo/configure.in texinfo/acinclude.m4
  61 texinfo/Makefile.in: texinfo/Makefile.am texinfo/configure.in texinfo/aclocal.m4
  62 texinfo/configure: texinfo/configure.in texinfo/aclocal.m4
  63 texinfo/stamp-h.in: texinfo/configure.in texinfo/aclocal.m4 texinfo/acconfig.h
  64 texinfo/lib/Makefile.in: texinfo/lib/Makefile.am texinfo/configure.in texinfo/aclocal.m4
  65 texinfo/makeinfo/Makefile.in: texinfo/makeinfo/Makefile.am texinfo/configure.in texinfo/aclocal.m4
  66 texinfo/util/Makefile.in: texinfo/util/Makefile.am texinfo/configure.in texinfo/aclocal.m4
  67 # Now, proceed to gcc automatically generated files
  68 gcc/configure: gcc/configure.in
  69 gcc/cstamp-h.in: gcc/configure.in gcc/acconfig.h
  70 gcc/config.in: gcc/cstamp-h.in
  71 gcc/fixinc/fixincl.x: gcc/fixinc/fixincl.tpl gcc/fixinc/inclhack.def
  72 gcc/doc/gcov.1: gcc/doc/gcov.texi
  73 gcc/doc/cpp.1: gcc/doc/cpp.texi
  74 gcc/doc/gcc.1: gcc/doc/invoke.texi
  75 # And then, language-specific files
  76 # (None at present.)
  77 # And libraries, at last
  78 libchill/configure: libchill/configure.in
  79 libf2c/configure: libf2c/configure.in
  80 libf2c/libF77/configure: libf2c/libF77/configure.in
  81 libf2c/libI77/configure: libf2c/libI77/configure.in
  82 libf2c/libI77/stamp-h.in: libf2c/libI77/configure.in
  83 libf2c/libI77/config.h.in: libf2c/libI77/configure.in libf2c/libI77/stamp-h.in
  84 libf2c/libU77/configure: libf2c/libU77/configure.in
  85 libf2c/libU77/stamp-h.in: libf2c/libU77/configure.in libf2c/libU77/acconfig.h
  86 libobjc/configure: libobjc/configure.in
  87 # fastjar
  88 fastjar/aclocal.m4: fastjar/configure.in
  89 fastjar/Makefile.in: fastjar/Makefile.am fastjar/configure.in fastjar/aclocal.m4
  90 fastjar/configure: fastjar/configure.in fastjar/aclocal.m4
  91 fastjar/stamp-h.in: fastjar/configure.in 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 libjava/aclocal.m4: libjava/configure.in libjava/acinclude.m4
  96 libjava/Makefile.in: libjava/Makefile.am libjava/configure.in libjava/aclocal.m4
  97 libjava/configure: libjava/configure.in libjava/aclocal.m4
  98 libjava/libltdl/aclocal.m4: libjava/libltdl/configure.in libjava/libltdl/acinclude.m4
  99 libjava/libltdl/Makefile.in: libjava/libltdl/Makefile.am libjava/libltdl/configure.in libjava/libltdl/aclocal.m4
 100 libjava/libltdl/configure: libjava/libltdl/configure.in libjava/libltdl/aclocal.m4
 101 libjava/libltdl/stamp-h.in: libjava/libltdl/configure.in libjava/libltdl/aclocal.m4 libjava/libltdl/acconfig.h
 102 EOF
 103 }
 104
 105
 106 # This function touches generated files such that the ``end'' user does
 107 # not have to rebuild them.
 108 touch_files () {
 109     rm -f Makefile.$$
 110     echo 'all: \' > Makefile.$$
 111     files_and_dependencies | sed 's, .*, \\,' >> Makefile.$$
 112     echo '; @true' >> Makefile.$$
 113     files_and_dependencies | sed 's, ,: ,' >> Makefile.$$
 114     files_and_dependencies | sed 's, .*, \\,' >> Makefile.$$
 115     echo ':' >> Makefile.$$
 116     echo '      @for f in $?; do test -f $$f || exit 0; done; \' >> Makefile.$$
 117     echo '      echo Touching $@...; \' >> Makefile.$$
 118     echo '      echo Touching $@... 1>&2; \' >> Makefile.$$
 119     echo '      touch $@' >> Makefile.$$
 120     files_and_dependencies | sed 's,[^ ]* ,,;s,$, :,' >> Makefile.$$
 121     while ${MAKE-make} -f Makefile.$$ all | grep . > /dev/null; do
 122       sleep 1
 123     done 2>&1
 124     rm -f Makefile.$$
 125 }
 126
 127
 128 # Whenever we update the tree or install a patch, we may be modifying
 129 # this script.  By re-execing it, we ensure that the appropriate
 130 # dependencies and rules will be used.
 131 touch_files_reexec () {
 132     echo "Adjusting file timestamps"
 133     exec ${CONFIG_SHELL-/bin/sh} $self --touch
 134 }
 135
 136 # This functions applies a patch to an existing tree.
 137 apply_patch () {
 138     if [ -f $1 ]; then
 139         echo "Applying patch file $1"
 140         case "$1" in
 141         *gz)
 142             gzip -d -c $1 | patch -p1 ;;
 143         *bz2)
 144             bzip2 -d -c $1 | patch -p1 ;;
 145         *)
 146             cat $1 | patch -p1 ;;
 147         esac
 148     fi
 149     touch_files_reexec
 150 }
 151
 152 # Check whether this indeed looks like a local tree.
 153 if [ ! -f gcc/version.c ]; then
 154     echo "This does not seem to be a GCC tree!"
 155     exit
 156 fi
 157
 158 case "$1" in
 159 # First of all, check whether we are going to process a patch.
 160 --patch)
 161     if test "$#" != 2; then
 162         echo "$1" expects only one argument >&2
 163         exit 1
 164     fi
 165     apply_patch "${2}"
 166     exit $?
 167     ;;
 168
 169 --touch)
 170     if test "$#" != 1; then
 171         echo "$1" does not expect any argument >&2
 172         exit 1
 173     fi
 174     touch_files
 175     exit $?
 176     ;;
 177
 178 --list)
 179     if test "$#" != 1; then
 180         echo "$1" does not expect any argument >&2
 181         exit 1
 182     fi
 183     files_and_dependencies | sed 's/ /: /'
 184     exit $?
 185     ;;
 186
 187 --help)
 188     sed -e '1,2d' -e '/^UPDATE_OPTIONS=/{i\
 189 \
 190
 191 p
 192 }' \
 193         -e '/^$/,$d' -e 's/#//' -e 's/^ //' < $0
 194     exit $?
 195     ;;
 196
 197 esac
 198
 199 # Check whether this indeed looks like a local CVS tree.
 200 if [ ! -d CVS ]; then
 201     echo "This does not seem to be a GCC CVS tree!"
 202     exit
 203 fi
 204
 205 # Check command-line options
 206 if [ x"${1}"x = x"--nostdflags"x ]; then
 207     shift
 208 else
 209     set -- $UPDATE_OPTIONS ${1+"$@"}
 210 fi
 211
 212 echo "Updating CVS tree"
 213 cvs -q update ${1+"$@"}
 214 if [ $? -ne 0 ]; then
 215     (touch_files_reexec)
 216     echo "CVS update of full tree failed." >&2
 217     exit 1
 218 fi
 219
 220 touch_files_reexec