scripts/ipkg-build

   1 #!/bin/sh
   2
   3 # ipkg-build -- construct a .ipk from a directory
   4 # Carl Worth <cworth@east.isi.edu>
   5 # based on a script by Steve Redler IV, steve@sr-tech.com 5-21-2001
   6 # 2003-04-25 rea@sr.unh.edu
   7 #   Updated to work on Familiar Pre0.7rc1, with busybox tar.
   8 #   Note it Requires: binutils-ar (since the busybox ar can't create)
   9 #   For UID debugging it needs a better "find".
  10 set -e
  11
  12 version=1.0
  13 FIND="$(command -v find)"
  14 FIND="${FIND:-$(command -v gfind)}"
  15 TAR="${TAR:-$(command -v tar)}"
  16 GZIP="$(command -v gzip)"
  17
  18 # try to use fixed source epoch
  19 if [ -n "$PKG_SOURCE_DATE_EPOCH" ]; then
  20         TIMESTAMP=$(date --date="@$PKG_SOURCE_DATE_EPOCH")
  21 elif [ -n "$SOURCE_DATE_EPOCH" ]; then
  22         TIMESTAMP=$(date --date="@$SOURCE_DATE_EPOCH")
  23 else
  24         TIMESTAMP=$(date)
  25 fi
  26
  27 ipkg_extract_value() {
  28         sed -e "s/^[^:]*:[[:space:]]*//"
  29 }
  30
  31 required_field() {
  32         field=$1
  33
  34         grep "^$field:" < $CONTROL/control | ipkg_extract_value
  35 }
  36
  37 pkg_appears_sane() {
  38         local pkg_dir=$1
  39
  40         local owd=$PWD
  41         cd $pkg_dir
  42
  43         PKG_ERROR=0
  44         pkg=`required_field Package`
  45         version=`required_field Version | sed 's/Version://; s/^.://g;'`
  46         arch=`required_field Architecture`
  47
  48         if echo $pkg | grep '[^a-zA-Z0-9_.+-]'; then
  49                 echo "*** Error: Package name $name contains illegal characters, (other than [a-z0-9.+-])" >&2
  50                 PKG_ERROR=1;
  51         fi
  52
  53         if [ -f $CONTROL/conffiles ]; then
  54                 rm -f $CONTROL/conffiles.resolved
  55
  56                 for cf in `$FIND $(sed -e "s!^/!$pkg_dir/!" $CONTROL/conffiles) -type f`; do
  57                         echo "${cf#$pkg_dir}" >> $CONTROL/conffiles.resolved
  58                 done
  59
  60                 rm $CONTROL/conffiles
  61                 if [ -f $CONTROL/conffiles.resolved ]; then
  62                         mv $CONTROL/conffiles.resolved $CONTROL/conffiles
  63                         chmod 0644 $CONTROL/conffiles
  64                 fi
  65         fi
  66
  67         cd $owd
  68         return $PKG_ERROR
  69 }
  70
  71 resolve_file_mode_id() {
  72         type="$1"
  73         name="$2"
  74         position=1
  75         if [ "$type" = "group" ]; then
  76                 position=2
  77         fi
  78
  79         # root is always 0
  80         if [ "$name" = "root" ]; then
  81                 echo 0
  82                 exit 0
  83         fi
  84
  85         # return numeric names
  86         if [ "$name" -eq "$name" 2>/dev/null ]; then
  87                 echo "$name"
  88                 exit 0
  89         fi
  90
  91         ids=$(grep "$name" "$TOPDIR/tmp/userids")
  92         for id in $ids; do
  93                 resolved_name=$(echo "$id" | cut -d ":" -f "$position" | cut -d "=" -f 1)
  94                 resolved_id=$(echo "$id" | cut -d ":" -f "$position" | cut -d "=" -f 2)
  95                 if [ "$resolved_name" = "$name" ]; then
  96                         echo "$resolved_id"
  97                         exit 0
  98                 fi
  99         done
 100
 101         >&2 echo "No $type ID found for $name"
 102         exit 1
 103 }
 104
 105 ###
 106 # ipkg-build "main"
 107 ###
 108 file_modes=""
 109 usage="Usage: $0 [-v] [-h] [-m] <pkg_directory> [<destination_directory>]"
 110 while getopts "hvm:" opt; do
 111     case $opt in
 112         v ) echo $version
 113             exit 0
 114             ;;
 115         h )     echo $usage  >&2 ;;
 116         m )     file_modes=$OPTARG ;;
 117         \? )    echo $usage  >&2
 118         esac
 119 done
 120
 121
 122 shift $(($OPTIND - 1))
 123
 124 # continue on to process additional arguments
 125
 126 case $# in
 127 1)
 128         dest_dir=$PWD
 129         ;;
 130 2)
 131         dest_dir=$2
 132         if [ "$dest_dir" = "." -o "$dest_dir" = "./" ] ; then
 133             dest_dir=$PWD
 134         fi
 135         ;;
 136 *)
 137         echo $usage >&2
 138         exit 1
 139         ;;
 140 esac
 141
 142 pkg_dir=$1
 143
 144 if [ ! -d $pkg_dir ]; then
 145         echo "*** Error: Directory $pkg_dir does not exist" >&2
 146         exit 1
 147 fi
 148
 149 # CONTROL is second so that it takes precedence
 150 CONTROL=
 151 [ -d $pkg_dir/CONTROL ] && CONTROL=CONTROL
 152 if [ -z "$CONTROL" ]; then
 153         echo "*** Error: Directory $pkg_dir has no CONTROL subdirectory." >&2
 154         exit 1
 155 fi
 156
 157 if ! pkg_appears_sane $pkg_dir; then
 158         echo >&2
 159         echo "ipkg-build: Please fix the above errors and try again." >&2
 160         exit 1
 161 fi
 162
 163 tmp_dir=$dest_dir/IPKG_BUILD.$$
 164 mkdir $tmp_dir
 165
 166 echo $CONTROL > $tmp_dir/tarX
 167 cd $pkg_dir
 168 for file_mode in $file_modes; do
 169         case $file_mode in
 170         /*:*:*:*)
 171             ;;
 172         *)
 173             echo "ERROR: file modes must use absolute path and contain user:group:mode"
 174             echo "$file_mode"
 175             exit 1
 176             ;;
 177         esac
 178         path=$(echo "$file_mode" | cut -d ':' -f 1)
 179         user=$(echo "$file_mode" | cut -d ':' -f 2)
 180         group=$(echo "$file_mode" | cut -d ':' -f 3)
 181         mode=$(echo "$file_mode" | cut -d ':' -f 4)
 182
 183         uid=$(resolve_file_mode_id user "$user")
 184         gid=$(resolve_file_mode_id group "$group")
 185
 186         chown "$uid:$gid" "$pkg_dir/$path"
 187         chmod  "$mode" "$pkg_dir/$path"
 188 done
 189 $TAR -X $tmp_dir/tarX --format=gnu --sort=name -cpf - --mtime="$TIMESTAMP" . | $GZIP -n - > $tmp_dir/data.tar.gz
 190
 191 installed_size=`stat -c "%s" $tmp_dir/data.tar.gz`
 192 sed -i -e "s/^Installed-Size: .*/Installed-Size: $installed_size/" \
 193         $pkg_dir/$CONTROL/control
 194
 195 ( cd $pkg_dir/$CONTROL && $TAR --format=gnu --sort=name -cf -  --mtime="$TIMESTAMP" . | $GZIP -n - > $tmp_dir/control.tar.gz )
 196 rm $tmp_dir/tarX
 197
 198 echo "2.0" > $tmp_dir/debian-binary
 199
 200 pkg_file=$dest_dir/${pkg}_${version}_${arch}.ipk
 201 rm -f $pkg_file
 202 ( cd $tmp_dir && $TAR --format=gnu --sort=name -cf -  --mtime="$TIMESTAMP" ./debian-binary ./data.tar.gz ./control.tar.gz | $GZIP -n - > $pkg_file )
 203
 204 rm $tmp_dir/debian-binary $tmp_dir/data.tar.gz $tmp_dir/control.tar.gz
 205 rmdir $tmp_dir
 206
 207 echo "Packaged contents of $pkg_dir into $pkg_file"