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16 # only generated files that appear to be out of date in the local tree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