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