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.
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
12 # If the first parameter reads --patch, the second parameter is considered
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16 # only generated files that appear to be out of date in the local tree
19 # If the first parameter is --list, a list of the generated files and
20 # their dependencies will be printed; --help prints this message.
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
32 # (C) 1998-2000 Free Software Foundation
33 # Originally by Gerald Pfeifer <pfeifer@dbai.tuwien.ac.at>, August 1998.
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
40 # Default options used when updating via CVS.
42 # Add -d to create any directories that exist in the repository but not
44 # Add -A to reset any sticky tags, dates, or `-k' options.
46 # Arrange for the value of $0 to be available for functions
49 # This function prints a list of all generated files, along with their
50 # dependencies. Note that only one target is supported per line: the
51 # colon is stripped from the output.
52 files_and_dependencies () {
53 sed -e 's/ *#.*//' -e '/^$/d' -e 's/://' <<\EOF
54 # All automake dependencies within texinfo
55 # In fact, not all, since we do not care about sub-directories that
56 # we do not build. In particular, *.po and *.gmo are not touched.
57 texinfo/aclocal.m4: texinfo/configure.in texinfo/acinclude.m4
58 texinfo/Makefile.in: texinfo/Makefile.am texinfo/configure.in texinfo/aclocal.m4
59 texinfo/configure: texinfo/configure.in texinfo/aclocal.m4
60 texinfo/stamp-h.in: texinfo/configure.in texinfo/aclocal.m4 texinfo/acconfig.h
61 texinfo/lib/Makefile.in: texinfo/lib/Makefile.am texinfo/configure.in texinfo/aclocal.m4
62 texinfo/makeinfo/Makefile.in: texinfo/makeinfo/Makefile.am texinfo/configure.in texinfo/aclocal.m4
63 texinfo/util/Makefile.in: texinfo/util/Makefile.am texinfo/configure.in texinfo/aclocal.m4
64 # Now, proceed to gcc automatically generated files
65 gcc/configure: gcc/configure.in
66 gcc/cstamp-h.in: gcc/configure.in gcc/acconfig.h
67 gcc/config.in: gcc/cstamp-h.in
68 gcc/fixinc/fixincl.x: gcc/fixinc/fixincl.tpl gcc/fixinc/inclhack.def
69 gcc/gcov.1: gcc/gcov.texi
70 # And then, language-specific files
72 # And libraries, at last
73 libchill/configure: libchill/configure.in
74 libf2c/configure: libf2c/configure.in
75 libf2c/libF77/configure: libf2c/libF77/configure.in
76 libf2c/libI77/configure: libf2c/libI77/configure.in
77 libf2c/libU77/configure: libf2c/libU77/configure.in
78 libf2c/libU77/stamp-h.in: libf2c/libU77/configure.in libf2c/libU77/acconfig.h
79 libobjc/configure: libobjc/configure.in
81 fastjar/aclocal.m4: fastjar/configure.in
82 fastjar/Makefile.in: fastjar/Makefile.am fastjar/configure.in fastjar/aclocal.m4
83 fastjar/configure: fastjar/configure.in fastjar/aclocal.m4
84 fastjar/stamp-h.in: fastjar/configure.in fastjar/aclocal.m4
85 boehm-gc/aclocal.m4: boehm-gc/configure.in boehm-gc/acinclude.m4
86 boehm-gc/Makefile.in: boehm-gc/Makefile.am boehm-gc/configure.in boehm-gc/aclocal.m4
87 boehm-gc/configure: boehm-gc/configure.in boehm-gc/aclocal.m4
88 libjava/aclocal.m4: libjava/configure.in libjava/acinclude.m4
89 libjava/Makefile.in: libjava/Makefile.am libjava/configure.in libjava/aclocal.m4
90 libjava/configure: libjava/configure.in libjava/aclocal.m4
91 libjava/libltdl/aclocal.m4: libjava/libltdl/configure.in libjava/libltdl/acinclude.m4
92 libjava/libltdl/Makefile.in: libjava/libltdl/Makefile.am libjava/libltdl/configure.in libjava/libltdl/aclocal.m4
93 libjava/libltdl/configure: libjava/libltdl/configure.in libjava/libltdl/aclocal.m4
94 libjava/libltdl/stamp-h.in: libjava/libltdl/configure.in libjava/libltdl/aclocal.m4 libjava/libltdl/acconfig.h
99 # This function checks whether its first argument is newer than all
100 # the other arguments. It returns success (0) otherwise.
102 test `ls -1dt ${1+"$@"} | sed 1q` != "$1"
106 # This function touches generated files such that the ``end'' user does
107 # not have to rebuild them.
109 files_and_dependencies | while read f deps; do
110 if test -f $f && is_out_of_date "$f" $deps; then
111 echo Touching "$f"...
113 if is_out_of_date "$f" $deps; then
114 # Hmm, it may have got the same timestamp as one of
115 # its touched dependencies. Wait a second and retry.
117 echo Touching "$f" once more...
124 # Whenever we update the tree or install a patch, we may be modifying
125 # this script. By re-execing it, we ensure that the appropriate
126 # dependencies and rules will be used.
127 touch_files_reexec () {
128 echo "Adjusting file timestamps"
129 exec ${CONFIG_SHELL-/bin/sh} $self --touch
132 # This functions applies a patch to an existing tree.
135 echo "Applying patch file $1"
138 gzip -d -c $1 | patch -p1 ;;
140 bzip2 -d -c $1 | patch -p1 ;;
142 cat $1 | patch -p1 ;;
148 # Check whether this indeed looks like a local tree.
149 if [ ! -f gcc/version.c ]; then
150 echo "This does not seem to be a GCC tree!"
155 # First of all, check whether we are going to process a patch.
157 if test "$#" != 2; then
158 echo "$1" expects only one argument >&2
166 if test "$#" != 1; then
167 echo "$1" does not expect any argument >&2
175 if test "$#" != 1; then
176 echo "$1" does not expect any argument >&2
179 files_and_dependencies | sed 's/ /: /'
184 sed -e '1,2d' -e '/^UPDATE_OPTIONS=/{i\
189 -e '/^$/,$d' -e 's/#//' -e 's/^ //' < $0
195 # Check whether this indeed looks like a local CVS tree.
196 if [ ! -d CVS ]; then
197 echo "This does not seem to be a GCC CVS tree!"
201 # Check command-line options
202 if [ x"${1}"x = x"--nostdflags"x ]; then
205 set -- $UPDATE_OPTIONS ${1+"$@"}
208 echo "Updating CVS tree"
209 cvs -q update ${1+"$@"}
210 if [ $? -ne 0 ]; then
212 echo "CVS update of full tree failed." >&2