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1 #!/bin/bash
2 #
3 # prtreverse - create a crux package from files already installed
4 # on the hard disk.
5 #
6 # Copyright (c) 2003 by Simone Rota <sip@varlock.com>
7 #
8 # *************************************************************************
9 # * *
10 # * This program is free software; you can redistribute it and/or modify *
11 # * it under the terms of the GNU General Public License as published by *
12 # * the Free Software Foundation; either version 2 of the License, or *
13 # * (at your option) any later version. *
14 # * *
15 # *************************************************************************
16 #
17 # **** USE AT YOUR OWN RISK ****
18 #
19
20 VERSION="0.2"
21
22 info() {
23 echo "=======> $1"
24 }
25
26 note() {
27 echo "=======> NOTE: $1"
28 }
29
30 error() {
31 echo "=======> ERROR: $1"
32 }
33
34 usage() {
35 echo "Usage: prtreverse [-r] [-k] [-o] [-p] <path>"
36 exit 1
37 }
38
39 showversion() {
40 echo "prtreverse" $VERSION
41 echo "(c) 2003 by Simone Rota"
42 echo "This program is distributed under the GNU GPL license"
43 }
44
45 interrupted() {
46 echo "=======> operation interrupted."
47 exit 1
48 }
49
50 checkparams() {
51 # Do some test on given parameters.
52 if [ -z "$prtdir" ]; then
53 usage
54 exit 1
55 fi
56
57 if [ ! -d "$prtdir" ]; then
58 echo "'$prtdir': directory not found"
59 exit -1
60 fi
61
62 if [ ! -f "$prtdir"/Pkgfile ]; then
63 echo "no Pkgfile found in $prtdir. Skipping."
64 exit 1
65 fi
66
67 if [ ! -f "$prtdir"/.footprint ]; then
68 echo "no .footprint found in $prtdir. Skipping."
69 exit 1
70 fi
71
72 }
73
74 getoptions () {
75 # Name says it all.
76 while getopts rhvkfpo opt
77 do
78 case "$opt" in
79 r) userejected=1;;
80 k) keepworking=1;;
81 f) forcecreation=1;;
82 o) leaveowner=1;;
83 p) leaveperms=1;;
84 h) usage
85 exit 0
86 ;;
87 v) showversion
88 exit 0
89 ;;
90 \?) usage
91 exit -1
92 ;;
93 esac
94 done
95 shift $(($OPTIND - 1))
96 prtdir="$@"
97 }
98
99
100 printparams() {
101 # used for testing.
102 echo userejected: $userejected
103 echo test: $test
104 }
105
106 adjustperms(){
107 # changes file permissions according to given string
108 # (taken from footprint)
109 tonum $2
110 chmod `echo "$perms" reverse/$1`
111 }
112
113 adjustowner(){
114 # changes file user/group according to given string
115 # (taken from footprint)
116 chown `echo "$2" | sed 's|/|:|g'` reverse/$1
117 }
118
119 tonum() {
120 # change rxwrxwrxw permission format with
121 # numeric one (777).
122 # I know, this code sucks.
123 us=0
124 gr=0
125 ot=0
126 perms="000"
127 str=`echo $1 | tr "r" "4"`
128 str=`echo $str | tr "w" "2"`
129 str=`echo $str | tr "x" "1"`
130 str=`echo $str | tr "-" "0"`
131
132 for i in 0 1 2
133 do
134 let us=us+${str:$i:1}
135 done
136 for i in 3 4 5
137 do
138 let gr=gr+${str:$i:1}
139 done
140 for i in 6 7 8
141 do
142 let ot=ot+${str:$i:1}
143 done
144
145 perms=$us$gr$ot
146 }
147
148 createpkg(){
149 # creates tarred package
150 cd reverse
151 info "Creating "$PKGTAR
152 tar cfz ../"$PKGTAR" *
153 cd ..
154 }
155 ###################################################
156 # Main
157 ###################################################
158
159 trap "interrupted" SIGHUP SIGINT SIGQUIT SIGTERM
160
161 if [ $# -lt 1 ]; then
162 usage
163 exit -1
164 fi
165
166 userejected=0
167 keepworking=0
168 forcecreation=0
169 goterror=0
170 leaveowner=0
171 leaveperms=0
172
173 getoptions $@
174 checkparams $@
175
176 # removes existing working directory
177 if [ -d "$prtdir"/reverse ]
178 then
179 rm -r "$prtdir"/reverse
180 fi
181
182 # make working directory and initializes Pkgfile
183 # vars
184 mkdir -p "$prtdir"/reverse
185 . "$prtdir"/Pkgfile
186 PKGMK_COMPRESSION_MODE="gz"
187 [ -f /etc/pkgmk.conf ] && . /etc/pkgmk.conf
188 PKGTAR="$name"#"$version"-"$release".pkg.tar.$PKGMK_COMPRESSION_MODE
189
190 cd $prtdir
191
192 # package already exists, exit if not in force method
193 if [ -f "$PKGTAR" -a $forcecreation = 0 ]
194 then
195 echo "$PKGTAR" exists, skipping.
196 exit 1
197 fi
198
199 # the main loop to read entries in .footprint
200 # and copy files to the <path>/reverse directory.
201 # Could be implemented better.
202 info "Copying files..."
203 for f in `awk '{print $3}' .footprint`
204 do
205 if [ ! -d /"$f" -a ! -f /"$f" ]
206 then
207 error /$f" does not seem to be installed!"
208 exit 1
209 fi
210
211 if [ $userejected = 1 ]
212 then
213 if [ -f "/var/lib/pkg/rejected/""$f" ]
214 then
215 note "Using /"$f" from rejected dir"
216 cp -p -R -f "/var/lib/pkg/rejected/""$f" reverse/"$f"
217 else
218 if [ -d /"$f" ]
219 then
220 mkdir -p reverse/"$f"
221 else
222
223 if [ -f /"$f" ]
224 then
225 cp -p -R /"$f" reverse/"$f"
226 else
227 goterror=1
228 fi
229 fi
230 fi
231 else
232 if [ -d /"$f" ]
233 then
234 mkdir -p reverse/"$f"
235 else
236 if [ -f /"$f" ]
237 then
238 cp -p -R /"$f" reverse/"$f"
239 else
240 goterror=1
241 fi
242 fi
243 fi
244 done
245
246 # now we create the package adjust owner and permssions
247 if [ $goterror = 0 -o $forcecreation = 1 ]
248 then
249 # adjust owner/group
250 if [ ! $leaveowner = 1 ]
251 then
252 info "Adjusting files owner/group"
253 for f in `awk '{print $1"|"$2"|"$3}' .footprint`
254 do
255 fowner=`echo $f | awk -F"|" '{print $2}'`
256 fname=`echo $f | awk -F"|" '{print $3}'`
257 adjustowner $fname $fowner
258 done
259 fi
260
261 # adjust permissions
262 if [ ! $leaveperms = 1 ]
263 then
264 info "Adjusting files permissions"
265 for f in `awk '{print $1"|"$2"|"$3}' .footprint`
266 do
267 fperms=`echo $f | awk -F"|" '{print $1}'`
268 fname=`echo $f | awk -F"|" '{print $3}'`
269 adjustperms $fname "${fperms:1:9}"
270 done
271 fi
272
273 # finally create the package
274 createpkg
275
276 # removes the working directory
277 if [ ! $keepworking = 1 ]
278 then
279 info "Removing working dir"
280 rm -r reverse
281 fi
282
283 fi
284
285 exit 0
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