config/srclist-update

   1 #!/bin/sh
   2 # Check for files in directory $1 being up to date, according to the
   3 # list on stdin.  Don't actually make any changes, just show the diffs.
   4 #
   5 # Empty (or only whitespace) input lines are ignored.
   6 # Lines beginning with # are ignored.
   7 # Lines with just one word are ignored.
   8 # Otherwise, the line has two or more whitespace-separated words:
   9 #   the first word is the source directory, which can be a top-level
  10 #   directory of source archive,
  11 #   the second word is the source file name relative to the source
  12 #   directory, and
  13 #   the third word is the destination, other optional words are
  14 #   options.
  15 # The possible options are "gpl" (to replace the license with the GPL)
  16 #   and "doclicense" (to replace @include doclicense.texi with fdl.texi)
  17 #   and "release" (to use the release version instead of the
  18 #   development version).
  19 #   Unrecognized options are ignored.
  20 # $VARIABLE expansions are done (with sh eval).
  21 #
  22 # This script is used in gnulib and texinfo; the input files are named
  23 # srclist.txt.
  24 #
  25 # Copyright (C) 2002-2003, 2005, 2007-2019 Free Software Foundation, Inc.
  26 #
  27 # This program is free software: you can redistribute it and/or modify
  28 # it under the terms of the GNU General Public License as published by
  29 # the Free Software Foundation; either version 3 of the License, or
  30 # (at your option) any later version.
  31 #
  32 # This program is distributed in the hope that it will be useful,
  33 # but WITHOUT ANY WARRANTY; without even the implied warranty of
  34 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  35 # GNU General Public License for more details.
  36 #
  37 # You should have received a copy of the GNU General Public License
  38 # along with this program.  If not, see <https://www.gnu.org/licenses/>.
  39
  40 # Originally written by Karl Berry.
  41
  42
  43 if test -n "$1"; then
  44   cd "$1" || exit 1
  45 fi
  46
  47 verbose=false
  48 #chicken="echo (would)"
  49
  50 : ${TMPDIR=/tmp}
  51 dsttmp=$TMPDIR/srclist.dst
  52
  53 # Source `dirname $0`/srclistvars.sh first, if it exists.
  54 mydir=`dirname $0`
  55 test -r $mydir/srclistvars.sh && . $mydir/srclistvars.sh
  56
  57
  58 # \f
  59 # sed command to fix the license to be GPL.
  60 fixlicense='
  61   /^[[:space:]]*#[[:space:]]*Th[ei][ s].* is free software/,/^[[:space:]]*#.*USA\./c\
  62 #   This program is free software: you can redistribute it and/or modify\
  63 #   it under the terms of the GNU General Public License as published by\
  64 #   the Free Software Foundation; either version 3 of the License, or\
  65 #   (at your option) any later version.\
  66 #\
  67 #   This program is distributed in the hope that it will be useful,\
  68 #   but WITHOUT ANY WARRANTY; without even the implied warranty of\
  69 #   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the\
  70 #   GNU General Public License for more details.\
  71 #\
  72 #   You should have received a copy of the GNU General Public License\
  73 #   along with this program.  If not, see <https://www.gnu.org/licenses/>.
  74
  75   /Th[ei][ s].* is free software/,/\*\//c\
  76    This program is free software: you can redistribute it and/or modify\
  77    it under the terms of the GNU General Public License as published by\
  78    the Free Software Foundation; either version 3 of the License, or\
  79    (at your option) any later version.\
  80 \
  81    This program is distributed in the hope that it will be useful,\
  82    but WITHOUT ANY WARRANTY; without even the implied warranty of\
  83    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the\
  84    GNU General Public License for more details.\
  85 \
  86    You should have received a copy of the GNU General Public License\
  87    along with this program.  If not, see <https://www.gnu.org/licenses/>.  */
  88 '
  89
  90 # sed command to remove lines containing $Id lines.
  91 # Quote the $ so that CVS does not expand it in this script.
  92 remove_id_lines='/[$]Id:.*[$]/d'
  93
  94 # $1 is the root directory of input file, $2 is input file, $3 is
  95 # output.  Remove $Id lines, since they'll differ between source
  96 # locations.  If $options contains "gpl", change the license to be the
  97 # standard GPL.  We use this for libc files, et al.
  98 #
  99 fixfile() \
 100 {
 101   sed_command="$remove_id_lines"
 102
 103   case " $options " in
 104   *' gpl '*)
 105     sed_command="$sed_command; $fixlicense";;
 106
 107   *' doclicense '*)
 108     sed_command="$sed_command; s/@include doclicense.texi/@include fdl.texi/";;
 109   esac
 110
 111   sed "$sed_command" $1 >$2-t && mv $2-t $2
 112 }
 113
 114
 115 # \f
 116 cat | while read top src dst options; do
 117   #echo "top=$top, src=$src, dst=$dst, options=$options" >&2
 118   case $top:$src:$dst in
 119     *: ) continue;;    # skip lines without last element
 120     '#'* ) continue;;  # skip comment-only lines
 121   esac
 122
 123   release=false
 124   case " $options " in
 125     *' release '*)
 126       release=true
 127       ;;
 128   esac
 129
 130   eval top=$top
 131   if $release && test ! -d $top/.git; then
 132     echo "$0: 'release' option only works with git checkout"
 133     release=false
 134   fi
 135
 136   # Expand variables and make sure we have an input file.
 137   src1=$src
 138   eval src=$top/$src
 139   if test ! -r $src; then
 140     echo "$0: cannot read $src" >&2
 141     continue
 142   fi
 143
 144   # Ignore subdirs in src dir.  E.g., if input spec is
 145   #   src/subdir/foo.c dst
 146   # then write destination file dst/foo.c.
 147   eval dst=$dst
 148   test -d $dst && dst=$dst/`basename $src`
 149
 150   if $release; then
 151     rev=$(git --git-dir=$top/.git describe --abbrev=0)
 152     reltmp=$TMPDIR/`basename $src1`:$rev
 153     git --git-dir=$top/.git show $rev:$src1 > $reltmp
 154     fixfile $reltmp $reltmp
 155   fi
 156
 157   # Fix files in both src and dst, for the sake
 158   # of a clean comparison.
 159   srctmp=$TMPDIR/`basename $src`
 160   fixfile $src $srctmp
 161   test -r $dst && fixfile $dst $dsttmp
 162
 163   # if src was executable, make dst executable, to placate git.
 164   test -x $src && chmod a+x $dst
 165
 166   if test ! -e $dst; then
 167     echo "## $srctmp $dst  # new"
 168     $chicken cp -p $srctmp $dst
 169   elif $release && cmp -s $reltmp $dsttmp; then
 170     $verbose && echo "## $reltmp $dst  # unchanged"
 171   elif cmp -s $srctmp $dsttmp; then
 172     $verbose && echo "## $srctmp $dst  # unchanged"
 173   else
 174     echo "## $srctmp $dst  # changes"
 175     diff -C 2 $dst $srctmp
 176   fi
 177 done
 178
 179 rm -f $dsttmp