build: use numeric-owner in ipkg-build
[openwrt/openwrt.git] / 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"