1 | #! /bin/sh |
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2 | # |
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3 | # Update a local CVS tree from the egcs repository, with an emphasis |
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4 | # on treating generated files correctly, so that autoconf, bison et |
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5 | # al are not required for the ``end'' user. |
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6 | # |
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7 | # By default all command-line options are passed to `cvs update` in |
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8 | # addition to $UPDATE_OPTIONS (defined below). If the first parameter |
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9 | # reads --nostdflags, $UPDATE_OPTIONS as well as this parameter itself |
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10 | # are omitted. |
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11 | # |
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12 | # If the first parameter reads --patch, the second parameter is considered |
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13 | # a patch file. |
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14 | # |
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15 | # If the first parameter is --touch, no cvs operation will be performed, |
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16 | # only generated files that appear to be out of date in the local tree |
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17 | # will be touched. |
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18 | # |
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19 | # If the first parameter is --list, a list of the generated files and |
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20 | # their dependencies will be printed; --help prints this message. |
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21 | # |
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22 | # Examples: |
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23 | # |
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24 | # contrib/egcs_update -r egcs_latest_snapshot |
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25 | # contrib/egcs_update -A |
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26 | # contrib/egcs_update --nostdflags -P -r egcs_1_1_branch gcc/testsuite |
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27 | # contrib/egcs_update --patch some-patch |
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28 | # contrib/egcs_update --touch |
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29 | # contrib/egcs_update --list |
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30 | # |
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31 | # |
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32 | # (C) 1998-1999 Free Software Foundation |
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33 | # Originally by Gerald Pfeifer <pfeifer@dbai.tuwien.ac.at>, August 1998. |
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34 | # |
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35 | # This script is Free Software, and it can be copied, distributed and |
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36 | # modified as defined in the GNU General Public License. A copy of |
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37 | # its license can be downloaded from http://www.gnu.org/copyleft/gpl.html |
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38 | |
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39 | |
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40 | # Default options used when updating via CVS. |
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41 | UPDATE_OPTIONS=-P |
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42 | # Add -d to create any directories that exist in the repository but not |
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43 | # locally. |
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44 | # Add -A to reset any sticky tags, dates, or `-k' options. |
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45 | |
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46 | |
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47 | # This function prints a list of all generated files, along with their |
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48 | # dependencies. Note that only one target is supported per line: the |
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49 | # colon is stripped from the output. |
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50 | files_and_dependencies () { |
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51 | sed -e 's/ *#.*//' -e '/^$/d' -e 's/://' <<\EOF |
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52 | # All automake dependencies within texinfo |
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53 | # In fact, not all, since we do not care about sub-directories that |
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54 | # we do not build. In particular, *.po and *.gmo are not touched. |
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55 | texinfo/aclocal.m4: texinfo/configure.in texinfo/acinclude.m4 |
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56 | texinfo/Makefile.in: texinfo/Makefile.am texinfo/configure.in texinfo/aclocal.m4 |
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57 | texinfo/configure: texinfo/configure.in texinfo/aclocal.m4 |
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58 | texinfo/stamp-h.in: texinfo/configure.in texinfo/aclocal.m4 texinfo/acconfig.h |
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59 | texinfo/lib/Makefile.in: texinfo/lib/Makefile.am texinfo/configure.in texinfo/aclocal.m4 |
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60 | texinfo/makeinfo/Makefile.in: texinfo/makeinfo/Makefile.am texinfo/configure.in texinfo/aclocal.m4 |
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61 | texinfo/util/Makefile.in: texinfo/util/Makefile.am texinfo/configure.in texinfo/aclocal.m4 |
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62 | # Now, proceed to gcc automatically generated files |
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63 | gcc/configure: gcc/configure.in |
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64 | gcc/cstamp-h.in: gcc/configure.in gcc/acconfig.h |
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65 | gcc/config.in: gcc/cstamp-h.in |
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66 | gcc/c-parse.y: gcc/c-parse.in |
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67 | gcc/c-parse.c: gcc/c-parse.y |
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68 | gcc/c-parse.h: gcc/c-parse.c |
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69 | gcc/c-gperf.h: gcc/c-parse.gperf |
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70 | gcc/cexp.c: gcc/cexp.y |
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71 | gcc/fixinc/fixincl.x: gcc/fixinc/fixincl.tpl gcc/fixinc/inclhack.def |
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72 | gcc/fixinc/inclhack.sh: gcc/fixinc/inclhack.def gcc/fixinc/inclhack.tpl gcc/fixinc/hackshell.tpl |
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73 | gcc/fixinc/fixincl.sh: gcc/fixinc/inclhack.def gcc/fixinc/inclhack.tpl |
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74 | # And then, language-specific files |
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75 | gcc/cp/parse.c: gcc/cp/parse.y |
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76 | gcc/cp/parse.h: gcc/cp/parse.c |
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77 | gcc/objc/objc-parse.y: gcc/c-parse.in |
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78 | gcc/objc/objc-parse.c: gcc/objc/objc-parse.y |
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79 | gcc/java/parse.h: gcc/java/parse.y |
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80 | gcc/java/parse.c: gcc/java/parse.y gcc/java/lex.c gcc/java/parse.h gcc/java/lex.h |
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81 | 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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82 | # And libraries, at last |
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83 | libchill/configure: libchill/configure.in |
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84 | libf2c/configure: libf2c/configure.in |
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85 | libf2c/libF77/configure: libf2c/libF77/configure.in |
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86 | libf2c/libI77/configure: libf2c/libI77/configure.in |
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87 | libf2c/libU77/configure: libf2c/libU77/configure.in |
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88 | libf2c/libU77/stamp-h.in: libf2c/libU77/configure.in libf2c/libU77/acconfig.h |
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89 | libobjc/configure: libobjc/configure.in |
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90 | EOF |
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91 | } |
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92 | |
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93 | |
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94 | # This function checks whether its first argument is newer than all |
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95 | # the other arguments. It returns success (0) otherwise. |
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96 | is_out_of_date () { |
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97 | test `ls -1dt ${1+"$@"} | sed 1q` != "$1" |
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98 | } |
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99 | |
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100 | |
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101 | # This function touches generated files such that the ``end'' user does |
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102 | # not have to rebuild them. |
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103 | touch_files () { |
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104 | files_and_dependencies | while read f deps; do |
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105 | if test -f $f && is_out_of_date "$f" $deps; then |
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106 | echo Touching "$f"... |
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107 | touch $f |
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108 | if is_out_of_date "$f" $deps; then |
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109 | # Hmm, it may have got the same timestamp as one of |
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110 | # its touched dependencies. Wait a second and retry |
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111 | sleep 1 |
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112 | touch $f |
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113 | fi |
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114 | fi |
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115 | done |
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116 | } |
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117 | |
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118 | |
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119 | # This functions applies a patch to an existing tree. |
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120 | apply_patch () { |
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121 | if [ -f $1 ]; then |
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122 | echo "Applying patch file $1" |
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123 | case "$1" in |
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124 | *gz) |
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125 | gzip -d -c $1 | patch -p1 ;; |
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126 | *) |
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127 | cat $1 | patch -p1 ;; |
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128 | esac |
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129 | fi |
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130 | echo "Adjusting file timestamps" |
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131 | touch_files |
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132 | } |
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133 | |
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134 | # Check whether this indeed looks like a local tree. |
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135 | if [ ! -f gcc/version.c ]; then |
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136 | echo "This does not seem to be an egcs tree!" |
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137 | exit |
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138 | fi |
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139 | |
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140 | case "$1" in |
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141 | # First of all, check whether we are going to process a patch. |
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142 | --patch) |
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143 | if test "$#" != 2; then |
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144 | echo "$1" expects only one argument >&2 |
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145 | exit 1 |
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146 | fi |
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147 | apply_patch "${2}" |
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148 | exit $? |
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149 | ;; |
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150 | |
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151 | --touch) |
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152 | if test "$#" != 1; then |
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153 | echo "$1" does not expect any argument >&2 |
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154 | exit 1 |
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155 | fi |
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156 | touch_files |
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157 | exit $? |
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158 | ;; |
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159 | |
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160 | --list) |
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161 | if test "$#" != 1; then |
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162 | echo "$1" does not expect any argument >&2 |
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163 | exit 1 |
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164 | fi |
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165 | files_and_dependencies | sed 's/ /: /' |
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166 | exit $? |
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167 | ;; |
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168 | |
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169 | --help) |
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170 | sed -e '1,2d' -e '/^UPDATE_OPTIONS=/{i\ |
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171 | \ |
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172 | |
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173 | p |
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174 | }' \ |
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175 | -e '/^$/,$d' -e 's/#//' -e 's/^ //' < $0 |
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176 | exit $? |
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177 | ;; |
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178 | |
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179 | esac |
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180 | |
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181 | # Check whether this indeed looks like a local CVS tree. |
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182 | if [ ! -d CVS ]; then |
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183 | echo "This does not seem to be an egcs CVS tree!" |
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184 | exit |
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185 | fi |
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186 | |
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187 | # Check command-line options |
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188 | if [ x"${1}"x = x"--nostdflags"x ]; then |
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189 | shift |
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190 | else |
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191 | set -- $UPDATE_OPTIONS ${1+"$@"} |
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192 | fi |
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193 | |
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194 | echo "Updating CVS tree" |
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195 | cvs -q update ${1+"$@"} |
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196 | if [ $? -ne 0 ]; then |
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197 | echo "CVS update of full tree failed." >&2 |
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198 | exit 1 |
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199 | fi |
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200 | |
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201 | echo "Adjusting file timestamps" |
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202 | touch_files |
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