203 lines
6.0 KiB
Bash
Executable File
203 lines
6.0 KiB
Bash
Executable File
#! /bin/sh
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#
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# Update a local CVS tree from the egcs repository, with an emphasis
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# on treating generated files correctly, so that autoconf, bison et
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# al are not required for the ``end'' user.
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#
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# By default all command-line options are passed to `cvs update` in
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# addition to $UPDATE_OPTIONS (defined below). If the first parameter
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# reads --nostdflags, $UPDATE_OPTIONS as well as this parameter itself
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# are omitted.
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#
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# If the first parameter reads --patch, the second parameter is considered
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# a patch file.
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#
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# If the first parameter is --touch, no cvs operation will be performed,
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# only generated files that appear to be out of date in the local tree
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# will be touched.
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#
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# If the first parameter is --list, a list of the generated files and
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# their dependencies will be printed; --help prints this message.
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#
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# Examples:
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#
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# contrib/egcs_update -r egcs_latest_snapshot
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# contrib/egcs_update -A
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# contrib/egcs_update --nostdflags -P -r egcs_1_1_branch gcc/testsuite
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# contrib/egcs_update --patch some-patch
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# contrib/egcs_update --touch
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# contrib/egcs_update --list
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#
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#
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# (C) 1998-1999 Free Software Foundation
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# Originally by Gerald Pfeifer <pfeifer@dbai.tuwien.ac.at>, August 1998.
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#
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# This script is Free Software, and it can be copied, distributed and
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# modified as defined in the GNU General Public License. A copy of
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# its license can be downloaded from http://www.gnu.org/copyleft/gpl.html
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# Default options used when updating via CVS.
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UPDATE_OPTIONS=-P
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# Add -d to create any directories that exist in the repository but not
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# locally.
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# Add -A to reset any sticky tags, dates, or `-k' options.
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# This function prints a list of all generated files, along with their
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# dependencies. Note that only one target is supported per line: the
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# colon is stripped from the output.
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files_and_dependencies () {
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sed -e 's/ *#.*//' -e '/^$/d' -e 's/://' <<\EOF
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# All automake dependencies within texinfo
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# In fact, not all, since we do not care about sub-directories that
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# we do not build. In particular, *.po and *.gmo are not touched.
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texinfo/aclocal.m4: texinfo/configure.in texinfo/acinclude.m4
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texinfo/Makefile.in: texinfo/Makefile.am texinfo/configure.in texinfo/aclocal.m4
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texinfo/configure: texinfo/configure.in texinfo/aclocal.m4
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texinfo/stamp-h.in: texinfo/configure.in texinfo/aclocal.m4 texinfo/acconfig.h
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texinfo/lib/Makefile.in: texinfo/lib/Makefile.am texinfo/configure.in texinfo/aclocal.m4
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texinfo/makeinfo/Makefile.in: texinfo/makeinfo/Makefile.am texinfo/configure.in texinfo/aclocal.m4
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texinfo/util/Makefile.in: texinfo/util/Makefile.am texinfo/configure.in texinfo/aclocal.m4
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# Now, proceed to gcc automatically generated files
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gcc/configure: gcc/configure.in
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gcc/cstamp-h.in: gcc/configure.in gcc/acconfig.h
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gcc/config.in: gcc/cstamp-h.in
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gcc/c-parse.y: gcc/c-parse.in
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gcc/c-parse.c: gcc/c-parse.y
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gcc/c-parse.h: gcc/c-parse.c
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gcc/c-gperf.h: gcc/c-parse.gperf
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gcc/cexp.c: gcc/cexp.y
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gcc/fixinc/fixincl.x: gcc/fixinc/fixincl.tpl gcc/fixinc/inclhack.def
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gcc/fixinc/inclhack.sh: gcc/fixinc/inclhack.def gcc/fixinc/inclhack.tpl gcc/fixinc/hackshell.tpl
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gcc/fixinc/fixincl.sh: gcc/fixinc/inclhack.def gcc/fixinc/inclhack.tpl
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# And then, language-specific files
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gcc/cp/parse.c: gcc/cp/parse.y
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gcc/cp/parse.h: gcc/cp/parse.c
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gcc/objc/objc-parse.y: gcc/c-parse.in
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gcc/objc/objc-parse.c: gcc/objc/objc-parse.y
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gcc/java/parse.h: gcc/java/parse.y
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gcc/java/parse.c: gcc/java/parse.y gcc/java/lex.c gcc/java/parse.h gcc/java/lex.h
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gcc/java/parse-scan.c: gcc/java/parse-scan.y gcc/java/lex.c gcc/java/parse.h gcc/java/lex.h
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# And libraries, at last
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libchill/configure: libchill/configure.in
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libf2c/configure: libf2c/configure.in
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libf2c/libF77/configure: libf2c/libF77/configure.in
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libf2c/libI77/configure: libf2c/libI77/configure.in
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libf2c/libU77/configure: libf2c/libU77/configure.in
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libf2c/libU77/stamp-h.in: libf2c/libU77/configure.in libf2c/libU77/acconfig.h
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libobjc/configure: libobjc/configure.in
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EOF
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}
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# This function checks whether its first argument is newer than all
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# the other arguments. It returns success (0) otherwise.
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is_out_of_date () {
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test `ls -1dt ${1+"$@"} | sed 1q` != "$1"
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}
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# This function touches generated files such that the ``end'' user does
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# not have to rebuild them.
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touch_files () {
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files_and_dependencies | while read f deps; do
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if test -f $f && is_out_of_date "$f" $deps; then
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echo Touching "$f"...
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touch $f
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if is_out_of_date "$f" $deps; then
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# Hmm, it may have got the same timestamp as one of
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# its touched dependencies. Wait a second and retry
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sleep 1
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touch $f
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fi
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fi
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done
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}
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# This functions applies a patch to an existing tree.
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apply_patch () {
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if [ -f $1 ]; then
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echo "Applying patch file $1"
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case "$1" in
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*gz)
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gzip -d -c $1 | patch -p1 ;;
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*)
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cat $1 | patch -p1 ;;
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esac
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fi
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echo "Adjusting file timestamps"
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touch_files
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}
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# Check whether this indeed looks like a local tree.
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if [ ! -f gcc/version.c ]; then
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echo "This does not seem to be an egcs tree!"
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exit
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fi
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case "$1" in
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# First of all, check whether we are going to process a patch.
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--patch)
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if test "$#" != 2; then
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echo "$1" expects only one argument >&2
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exit 1
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fi
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apply_patch "${2}"
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exit $?
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;;
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--touch)
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if test "$#" != 1; then
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echo "$1" does not expect any argument >&2
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exit 1
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fi
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touch_files
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exit $?
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;;
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--list)
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if test "$#" != 1; then
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echo "$1" does not expect any argument >&2
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exit 1
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fi
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files_and_dependencies | sed 's/ /: /'
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exit $?
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;;
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--help)
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sed -e '1,2d' -e '/^UPDATE_OPTIONS=/{i\
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\
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p
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}' \
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-e '/^$/,$d' -e 's/#//' -e 's/^ //' < $0
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exit $?
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;;
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esac
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# Check whether this indeed looks like a local CVS tree.
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if [ ! -d CVS ]; then
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echo "This does not seem to be an egcs CVS tree!"
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exit
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fi
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# Check command-line options
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if [ x"${1}"x = x"--nostdflags"x ]; then
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shift
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else
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set -- $UPDATE_OPTIONS ${1+"$@"}
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fi
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echo "Updating CVS tree"
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cvs -q update ${1+"$@"}
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if [ $? -ne 0 ]; then
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echo "CVS update of full tree failed." >&2
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exit 1
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fi
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echo "Adjusting file timestamps"
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touch_files
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