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Commit | Line | Data |
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f717c7e4 GP |
1 | #! /bin/sh |
2 | # | |
b9550bfb | 3 | # Update a local CVS tree from the GCC repository, with an emphasis |
d9ddcc6a | 4 | # on treating generated files correctly, so that autoconf, gperf et |
f717c7e4 GP |
5 | # al are not required for the ``end'' user. |
6 | # | |
9b14b81c GP |
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 | |
12acf3a9 AJ |
10 | # are omitted. |
11 | # | |
9d59f307 GP |
12 | # If the first parameter reads --patch, the second parameter is considered |
13 | # a patch file. | |
12acf3a9 | 14 | # |
94b82f2b AO |
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16 | # only generated files that appear to be out of date in the local tree | |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 | # | |
9b14b81c GP |
22 | # Examples: |
23 | # | |
b9550bfb GP |
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 | |
9b14b81c | 30 | # |
23a05d03 | 31 | # |
b9550bfb | 32 | # (C) 1998-2000 Free Software Foundation |
23a05d03 GP |
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 | ||
f717c7e4 | 39 | |
9d59f307 | 40 | # Default options used when updating via CVS. |
f717c7e4 GP |
41 | UPDATE_OPTIONS=-P |
42 | # Add -d to create any directories that exist in the repository but not | |
43 | # locally. | |
44 | # Add -A to reset any sticky tags, dates, or `-k' options. | |
45 | ||
fda73e41 AO |
46 | # Arrange for the value of $0 to be available for functions |
47 | self=$0 | |
f717c7e4 | 48 | |
94b82f2b AO |
49 | # This function prints a list of all generated files, along with their |
50 | # dependencies. Note that only one target is supported per line: the | |
51 | # colon is stripped from the output. | |
52 | files_and_dependencies () { | |
53 | sed -e 's/ *#.*//' -e '/^$/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 | |
1a618a5a AO |
66 | gcc/cstamp-h.in: gcc/configure.in gcc/acconfig.h |
67 | gcc/config.in: gcc/cstamp-h.in | |
94b82f2b | 68 | gcc/fixinc/fixincl.x: gcc/fixinc/fixincl.tpl gcc/fixinc/inclhack.def |
c01a508e | 69 | gcc/gcov.1: gcc/gcov.texi |
94b82f2b | 70 | # And then, language-specific files |
beb039fe | 71 | # (None at present.) |
94b82f2b AO |
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 | |
80 | EOF | |
81 | } | |
82 | ||
83 | ||
84 | # This function checks whether its first argument is newer than all | |
85 | # the other arguments. It returns success (0) otherwise. | |
86 | is_out_of_date () { | |
87 | test `ls -1dt ${1+"$@"} | sed 1q` != "$1" | |
88 | } | |
89 | ||
90 | ||
9d59f307 GP |
91 | # This function touches generated files such that the ``end'' user does |
92 | # not have to rebuild them. | |
94b82f2b AO |
93 | touch_files () { |
94 | files_and_dependencies | while read f deps; do | |
95 | if test -f $f && is_out_of_date "$f" $deps; then | |
96 | echo Touching "$f"... | |
9d59f307 | 97 | touch $f |
94b82f2b AO |
98 | if is_out_of_date "$f" $deps; then |
99 | # Hmm, it may have got the same timestamp as one of | |
2d89ce6a | 100 | # its touched dependencies. Wait a second and retry. |
94b82f2b | 101 | sleep 1 |
2d89ce6a | 102 | echo Touching "$f" once more... |
94b82f2b AO |
103 | touch $f |
104 | fi | |
9d59f307 GP |
105 | fi |
106 | done | |
107 | } | |
108 | ||
25a9b3e5 AO |
109 | # Whenever we update the tree or install a patch, we may be modifying |
110 | # this script. By re-execing it, we ensure that the appropriate | |
111 | # dependencies and rules will be used. | |
112 | touch_files_reexec () { | |
113 | echo "Adjusting file timestamps" | |
fda73e41 | 114 | exec ${CONFIG_SHELL-/bin/sh} $self --touch |
12acf3a9 | 115 | } |
9d59f307 GP |
116 | |
117 | # This functions applies a patch to an existing tree. | |
94b82f2b | 118 | apply_patch () { |
9d59f307 GP |
119 | if [ -f $1 ]; then |
120 | echo "Applying patch file $1" | |
121 | case "$1" in | |
122 | *gz) | |
123 | gzip -d -c $1 | patch -p1 ;; | |
5c96cc3b WB |
124 | *bz2) |
125 | bzip2 -d -c $1 | patch -p1 ;; | |
9d59f307 GP |
126 | *) |
127 | cat $1 | patch -p1 ;; | |
128 | esac | |
129 | fi | |
25a9b3e5 | 130 | touch_files_reexec |
9d59f307 GP |
131 | } |
132 | ||
9d59f307 GP |
133 | # Check whether this indeed looks like a local tree. |
134 | if [ ! -f gcc/version.c ]; then | |
b9550bfb | 135 | echo "This does not seem to be a GCC tree!" |
9d59f307 | 136 | exit |
f717c7e4 GP |
137 | fi |
138 | ||
94b82f2b | 139 | case "$1" in |
9d59f307 | 140 | # First of all, check whether we are going to process a patch. |
12acf3a9 | 141 | --patch) |
94b82f2b AO |
142 | if test "$#" != 2; then |
143 | echo "$1" expects only one argument >&2 | |
144 | exit 1 | |
145 | fi | |
146 | apply_patch "${2}" | |
147 | exit $? | |
148 | ;; | |
149 | ||
150 | --touch) | |
151 | if test "$#" != 1; then | |
152 | echo "$1" does not expect any argument >&2 | |
153 | exit 1 | |
154 | fi | |
155 | touch_files | |
156 | exit $? | |
157 | ;; | |
158 | ||
159 | --list) | |
160 | if test "$#" != 1; then | |
161 | echo "$1" does not expect any argument >&2 | |
162 | exit 1 | |
163 | fi | |
164 | files_and_dependencies | sed 's/ /: /' | |
165 | exit $? | |
166 | ;; | |
167 | ||
168 | --help) | |
169 | sed -e '1,2d' -e '/^UPDATE_OPTIONS=/{i\ | |
170 | \ | |
171 | ||
172 | p | |
173 | }' \ | |
174 | -e '/^$/,$d' -e 's/#//' -e 's/^ //' < $0 | |
175 | exit $? | |
176 | ;; | |
177 | ||
178 | esac | |
9d59f307 GP |
179 | |
180 | # Check whether this indeed looks like a local CVS tree. | |
181 | if [ ! -d CVS ]; then | |
b9550bfb | 182 | echo "This does not seem to be a GCC CVS tree!" |
9d59f307 GP |
183 | exit |
184 | fi | |
9b14b81c | 185 | |
9d59f307 | 186 | # Check command-line options |
9b14b81c GP |
187 | if [ x"${1}"x = x"--nostdflags"x ]; then |
188 | shift | |
189 | else | |
190 | set -- $UPDATE_OPTIONS ${1+"$@"} | |
191 | fi | |
192 | ||
94b82f2b | 193 | echo "Updating CVS tree" |
9b14b81c | 194 | cvs -q update ${1+"$@"} |
12acf3a9 | 195 | if [ $? -ne 0 ]; then |
41343a8f | 196 | (touch_files_reexec) |
7a19950e RL |
197 | echo "CVS update of full tree failed." >&2 |
198 | exit 1 | |
199 | fi | |
f717c7e4 | 200 | |
25a9b3e5 | 201 | touch_files_reexec |