po/fetch-po-files

   1 #! /bin/sh
   2
   3 # fetch-po-files -- fetches the .po files from the Translation Project website
   4 # Copyright (C) 2005, 2010 Free Software Foundation, Inc.
   5 #
   6 # This program is free software: you can redistribute it and/or modify
   7 # it under the terms of the GNU General Public License as published by
   8 # the Free Software Foundation, either version 3 of the License, or
   9 # (at your option) any later version.
  10 #
  11 # This program is distributed in the hope that it will be useful,
  12 # but WITHOUT ANY WARRANTY; without even the implied warranty of
  13 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  14 # GNU General Public License for more details.
  15 #
  16 # You should have received a copy of the GNU General Public License
  17 # along with this program.  If not, see <http://www.gnu.org/licenses/>.
  18 #
  19 # Written by James Youngman.
  20
  21 URLBASE="http://www.iro.umontreal.ca/translation/maint"
  22
  23
  24 if [ $# -ne 2 ]; then
  25         echo "You need to specify the package name and a destination directory on the command line." >&2
  26         exit 1
  27 fi
  28
  29
  30
  31 PACKAGE="$1"
  32 DESTDIR="$2"
  33 shift
  34
  35 debug () {
  36         : nothing
  37 }
  38
  39 info () {
  40         echo "$@"
  41 }
  42
  43
  44 v_update_needed() {
  45         debug "update_required: Checking $@"
  46         vnew=$1
  47         vexisting=$2
  48
  49         major_new=$(echo $vnew | cut -s -d. -f1)
  50         major_existing=$(echo $vexisting | cut -s -d. -f1)
  51         if [ -z "$major_new" ]; then
  52                 debug "New version number empty, update not needed"
  53                 false
  54         elif [ -z "$major_existing" ]; then
  55                 debug "Existing version number empty, update is needed"
  56                 true
  57         elif [ $major_new -gt $major_existing ]; then
  58                 debug "$vnew > $vexisting, update needed"
  59                 true
  60         elif [ $major_new -lt $major_existing ]; then
  61                 debug "$vnew < $vexisting, update NOT needed"
  62                 true
  63         else
  64                 v_update_needed \
  65                         $(echo $vnew      | cut -s -d. -f2-) \
  66                         $(echo $vexisting | cut -s -d. -f2-)
  67         fi
  68 }
  69
  70 d_update_needed() {
  71     # Determine if an update is neeededon the basis of the version numbers.
  72     cat "$@" |
  73                 tr -d '"' |
  74                 grep "^PO-Revision-Date: " |
  75                 sed -e 's/PO-Revision-Date: //' -e 's/\\n$//' |
  76                 LANG=C sort -c >/dev/null
  77 }
  78
  79
  80
  81 getversion() {
  82         grep Project-Id-Version: < "$1" |
  83                 tr -d '"' |
  84                 sed -e 's/^.*'$PACKAGE' //' -e 's/\\n$//'
  85 }
  86
  87
  88 check_versions() {
  89         if vnew=$(getversion "$1"); then
  90                 if vexisting=$(getversion "$2"); then
  91                         if v_update_needed "$vnew" "$vexisting"; then
  92                                 true
  93                         else
  94                                 d_update_needed "$2" "$1" && \
  95                                 info "Timestamp fields indicate $1 is newer than $2"
  96                         fi
  97                 else
  98                         false
  99                 fi
 100         else
 101                 false
 102         fi
 103 }
 104
 105
 106 update_required() {
 107         new="$1"
 108         existing="$2"
 109         # ls -ltrd "$new" "$existing"
 110
 111         if ! [ -e "$existing" ] ; then
 112                 debug "$existing does not exist, using $new"
 113                 true
 114         elif cmp $new $existing >/dev/null 2>&1; then
 115                 info "$new and $existing are identical"
 116                 false
 117         elif check_versions "$new" "$existing"; then
 118                 info "Fetched file has newer version number or date stamp"
 119                 true
 120         else
 121                 false
 122         fi
 123 }
 124
 125
 126 possible_update() {
 127
 128         debug "Possible update of $3/$1"
 129
 130         new="$2/$1"
 131         existing="$3/$1"
 132
 133         if update_required $new $existing; then
 134                 info "Updating $1..."
 135                 rm -f $existing
 136                 mv $new $existing
 137         else
 138                 rm -f $new
 139         fi
 140 }
 141
 142
 143
 144 main () {
 145         potfile=$DESTDIR/$PACKAGE.pot
 146         if [ -f  $potfile ] ; then
 147                 echo "OK".
 148         else
 149                 echo "$potfile is not present.  Did you specify the right command line?" >&2
 150                 exit 1
 151         fi
 152         tmpdir=`mktemp -d`
 153
 154
 155         # set -x
 156         printf "Fetching .po files..."
 157         wget --quiet --recursive --directory-prefix="$tmpdir" --level=1 --accept "*.po" --no-directories "$URLBASE"/"$PACKAGE"
 158         echo done
 159         # cp /tmp/po-updates/$PACKAGE/*.po "$tmpdir"
 160         # touch "$tmpdir"/*.po
 161
 162         for f in $(cd $tmpdir && ls *.po ); do
 163                 possible_update "$f" "$tmpdir" "$DESTDIR"
 164         done
 165         cd /
 166         rm -rf "$tmpdir"
 167 }
 168
 169
 170 # getversion gl.po
 171 # update_needed 4.1.5 4.1.5
 172 # update_needed 4.1.15 4.1.5
 173 # update_needed 5.0 4.1.5
 174 # update_needed 4.2.6 5.0
 175 # exit 0
 176
 177 main "$@"