3 # Update a local CVS tree from the GCC repository, with an emphasis
4 # on treating generated files correctly, so that autoconf, bison 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16 # only generated files that appear to be out of date in the local tree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/c-parse.y: gcc/c-parse.in
69 gcc/c-parse.c: gcc/c-parse.y
70 gcc/c-parse.h: gcc/c-parse.c
71 gcc/c-gperf.h: gcc/c-parse.gperf
72 gcc/fixinc/fixincl.x: gcc/fixinc/fixincl.tpl gcc/fixinc/inclhack.def
73 gcc/tradcif.c: gcc/tradcif.y
74 # And then, language-specific files
75 gcc/cp/parse.c: gcc/cp/parse.y
76 gcc/cp/parse.h: gcc/cp/parse.c
77 gcc/objc/objc-parse.y: gcc/c-parse.in
78 gcc/objc/objc-parse.c: gcc/objc/objc-parse.y
79 gcc/java/parse.h: gcc/java/parse.y
80 gcc/java/parse.c: gcc/java/parse.y gcc/java/lex.c gcc/java/parse.h gcc/java/lex.h
81 gcc/java/parse-scan.c: gcc/java/parse-scan.y gcc/java/lex.c gcc/java/parse.h gcc/java/lex.h
82 # And libraries, at last
83 libchill/configure: libchill/configure.in
84 libf2c/configure: libf2c/configure.in
85 libf2c/libF77/configure: libf2c/libF77/configure.in
86 libf2c/libI77/configure: libf2c/libI77/configure.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
94 # This function checks whether its first argument is newer than all
95 # the other arguments. It returns success (0) otherwise.
97 test `ls -1dt ${1+"$@"} | sed 1q` != "$1"
101 # This function touches generated files such that the ``end'' user does
102 # not have to rebuild them.
104 files_and_dependencies | while read f deps; do
105 if test -f $f && is_out_of_date "$f" $deps; then
106 echo Touching "$f"...
108 if is_out_of_date "$f" $deps; then
109 # Hmm, it may have got the same timestamp as one of
110 # its touched dependencies. Wait a second and retry
118 # Whenever we update the tree or install a patch, we may be modifying
119 # this script. By re-execing it, we ensure that the appropriate
120 # dependencies and rules will be used.
121 touch_files_reexec () {
122 echo "Adjusting file timestamps"
123 exec ${CONFIG_SHELL-/bin/sh} $self --touch
126 # This functions applies a patch to an existing tree.
129 echo "Applying patch file $1"
132 gzip -d -c $1 | patch -p1 ;;
134 bzip2 -d -c $1 | patch -p1 ;;
136 cat $1 | patch -p1 ;;
142 # Check whether this indeed looks like a local tree.
143 if [ ! -f gcc/version.c ]; then
144 echo "This does not seem to be a GCC tree!"
149 # First of all, check whether we are going to process a patch.
151 if test "$#" != 2; then
152 echo "$1" expects only one argument >&2
160 if test "$#" != 1; then
161 echo "$1" does not expect any argument >&2
169 if test "$#" != 1; then
170 echo "$1" does not expect any argument >&2
173 files_and_dependencies | sed 's/ /: /'
178 sed -e '1,2d' -e '/^UPDATE_OPTIONS=/{i\
183 -e '/^$/,$d' -e 's/#//' -e 's/^ //' < $0
189 # Check whether this indeed looks like a local CVS tree.
190 if [ ! -d CVS ]; then
191 echo "This does not seem to be a GCC CVS tree!"
195 # Check command-line options
196 if [ x"${1}"x = x"--nostdflags"x ]; then
199 set -- $UPDATE_OPTIONS ${1+"$@"}
202 echo "Updating CVS tree"
203 cvs -q update ${1+"$@"}
204 if [ $? -ne 0 ]; then
205 echo "CVS update of full tree failed." >&2