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domenico
199
scripts/ipkg-build
Executable file
199
scripts/ipkg-build
Executable file
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#!/bin/sh
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# ipkg-build -- construct a .ipk from a directory
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# Carl Worth <cworth@east.isi.edu>
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# based on a script by Steve Redler IV, steve@sr-tech.com 5-21-2001
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# 2003-04-25 rea@sr.unh.edu
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# Updated to work on Familiar Pre0.7rc1, with busybox tar.
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# Note it Requires: binutils-ar (since the busybox ar can't create)
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# For UID debugging it needs a better "find".
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set -e
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version=1.0
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FIND="$(command -v find)"
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FIND="${FIND:-$(command -v gfind)}"
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TAR="${TAR:-$(command -v tar)}"
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# try to use fixed source epoch
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if [ -n "$PKG_SOURCE_DATE_EPOCH" ]; then
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TIMESTAMP=$(date --date="@$PKG_SOURCE_DATE_EPOCH")
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elif [ -n "$SOURCE_DATE_EPOCH" ]; then
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TIMESTAMP=$(date --date="@$SOURCE_DATE_EPOCH")
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else
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TIMESTAMP=$(date)
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fi
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ipkg_extract_value() {
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sed -e "s/^[^:]*:[[:space:]]*//"
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}
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required_field() {
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field=$1
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grep "^$field:" < "$CONTROL/control" | ipkg_extract_value
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}
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pkg_appears_sane() {
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local pkg_dir="$1"
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local owd="$PWD"
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cd "$pkg_dir"
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PKG_ERROR=0
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pkg="$(required_field Package)"
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version="$(required_field Version | sed 's/Version://; s/^.://g;')"
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arch="$(required_field Architecture)"
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if echo "$pkg" | grep '[^a-zA-Z0-9_.+-]'; then
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echo "*** Error: Package name $name contains illegal characters, (other than [a-z0-9.+-])" >&2
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PKG_ERROR=1;
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fi
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if [ -f "$CONTROL/conffiles" ]; then
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rm -f "$CONTROL/conffiles.resolved"
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for cf in $($FIND $(sed -e "s!^/!$pkg_dir/!" "$CONTROL/conffiles") -type f); do
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echo "${cf#$pkg_dir}" >> "$CONTROL/conffiles.resolved"
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done
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rm "$CONTROL"/conffiles
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if [ -f "$CONTROL"/conffiles.resolved ]; then
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mv "$CONTROL"/conffiles.resolved "$CONTROL"/conffiles
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chmod 0644 "$CONTROL"/conffiles
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fi
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fi
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cd "$owd"
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return $PKG_ERROR
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}
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resolve_file_mode_id() {
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local var=$1 type=$2 name=$3 id
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case "$name" in
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root)
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id=0
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;;
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*[!0-9]*)
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id=$(sed -ne "s#^$type $name \\([0-9]\\+\\)\\b.*\$#\\1#p" "$TOPDIR/tmp/.packageusergroup" 2>/dev/null)
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;;
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*)
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id=$name
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;;
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esac
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export "$var=$id"
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[ -n "$id" ]
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}
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###
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# ipkg-build "main"
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###
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file_modes=""
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usage="Usage: $0 [-v] [-h] [-m] <pkg_directory> [<destination_directory>]"
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while getopts "hvm:" opt; do
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case $opt in
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v ) echo "$version"
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exit 0
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;;
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h ) echo "$usage" >&2 ;;
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m ) file_modes=$OPTARG ;;
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\? ) echo "$usage" >&2
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esac
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done
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shift $((OPTIND - 1))
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# continue on to process additional arguments
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case $# in
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1)
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dest_dir=$PWD
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;;
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2)
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dest_dir=$2
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if [ "$dest_dir" = "." ] || [ "$dest_dir" = "./" ] ; then
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dest_dir=$PWD
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fi
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;;
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*)
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echo "$usage" >&2
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exit 1
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;;
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esac
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pkg_dir="$(realpath "$1")"
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if [ ! -d "$pkg_dir" ]; then
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echo "*** Error: Directory $pkg_dir does not exist" >&2
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exit 1
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fi
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# CONTROL is second so that it takes precedence
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CONTROL=
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[ -d "$pkg_dir"/CONTROL ] && CONTROL=CONTROL
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if [ -z "$CONTROL" ]; then
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echo "*** Error: Directory $pkg_dir has no CONTROL subdirectory." >&2
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exit 1
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fi
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if ! pkg_appears_sane "$pkg_dir"; then
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echo >&2
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echo "ipkg-build: Please fix the above errors and try again." >&2
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exit 1
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fi
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tmp_dir=$dest_dir/IPKG_BUILD.$$
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mkdir "$tmp_dir"
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echo $CONTROL > "$tmp_dir"/tarX
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cd "$pkg_dir"
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for file_mode in $file_modes; do
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case $file_mode in
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/*:*:*:*)
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;;
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*)
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echo "ERROR: file modes must use absolute path and contain user:group:mode"
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echo "$file_mode"
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exit 1
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;;
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esac
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mode=${file_mode##*:}; path=${file_mode%:*}
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group=${path##*:}; path=${path%:*}
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user=${path##*:}; path=${path%:*}
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if ! resolve_file_mode_id uid user "$user"; then
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echo "ERROR: unable to resolve uid of $user" >&2
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exit 1
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fi
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if ! resolve_file_mode_id gid group "$group"; then
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echo "ERROR: unable to resolve gid of $group" >&2
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exit 1
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fi
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chown "$uid:$gid" "$pkg_dir/$path"
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chmod "$mode" "$pkg_dir/$path"
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done
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$TAR -X "$tmp_dir"/tarX --format=gnu --sort=name -cpf - --mtime="$TIMESTAMP" . | gzip -n - > "$tmp_dir"/data.tar.gz
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installed_size=$(stat -c "%s" "$tmp_dir"/data.tar.gz)
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sed -i -e "s/^Installed-Size: .*/Installed-Size: $installed_size/" \
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"$pkg_dir"/$CONTROL/control
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( cd "$pkg_dir"/$CONTROL && $TAR --format=gnu --sort=name -cf - --mtime="$TIMESTAMP" . | gzip -n - > "$tmp_dir"/control.tar.gz )
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rm "$tmp_dir"/tarX
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echo "2.0" > "$tmp_dir"/debian-binary
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pkg_file=$dest_dir/${pkg}_${version}_${arch}.ipk
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rm -f "$pkg_file"
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( cd "$tmp_dir" && $TAR --format=gnu --sort=name -cf - --mtime="$TIMESTAMP" ./debian-binary ./data.tar.gz ./control.tar.gz | gzip -n - > "$pkg_file" )
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rm "$tmp_dir"/debian-binary "$tmp_dir"/data.tar.gz "$tmp_dir"/control.tar.gz
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rmdir "$tmp_dir"
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echo "Packaged contents of $pkg_dir into $pkg_file"
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