File: z

package info (click to toggle)
comprez 2.6.1-2
  • links: PTS, VCS
  • area: main
  • in suites: jessie, jessie-kfreebsd, wheezy
  • size: 152 kB
  • ctags: 57
  • sloc: sh: 484; makefile: 43
file content (435 lines) | stat: -rwxr-xr-x 11,053 bytes parent folder | download | duplicates (2)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
#!/bin/sh -

# z -- safely (un)tar and (de)feather files and directories
# Steve Kinzler, kinzler@cs.indiana.edu, May 89/Jun 93/Aug 99/Dec 00
# see website http://www.cs.indiana.edu/~kinzler/z/
# http://www.cs.indiana.edu/~kinzler/home.html#unix

#   Copyright
#
#       Copyright (C) 1989 Stephen B Kinzler <kinzler@cs.indiana.edu>
#
#   License
#
#       This program is free software; you can redistribute it and/or modify
#       it under the terms of the GNU General Public License as published by
#       the Free Software Foundation; either version 2 of the License, or
#       (at your option) any later version.
#
#       This program is distributed in the hope that it will be useful,
#       but WITHOUT ANY WARRANTY; without even the implied warranty of
#       MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
#       GNU General Public License for more details.
#
#       You should have received a copy of the GNU General Public License
#       along with this program. If not, see <http://www.gnu.org/licenses/>.

#version=2.1.15
#version=2.2.0	# ?? Aug 99: added .zip & zip/unzip support
#version=2.3.0	# 04 Dec 00: added .bz2 & bzip2 support
#version=2.4.0	# 23 Sep 02: added -l/-L options
#version=2.5.0	# 17 Feb 09: added .jar support
#version=2.6.0	#  5 Nov 09: added lzip support
		#	     by Antonio Diaz Diaz <ant_diaz@teleline.es>
version=2.6.1	#  4 Dec 09: added -q option, copyright/GPL for debian pkg

GZIP=; ZIPOPT=; UNZIP=; export GZIP ZIPOPT UNZIP

table=
verbose=; quiet=-q
report=
command=compress
tag=Z
qopts=
suffix=.tar.Z
mode=go-rwx
preserve=p
bad=

dfltopts="-T -V -L -Z -s $suffix -m $mode -p"

set x $ZOPTS ${1+"$@"}; shift

while :
do
	case $# in
	0)	break;;
	*)	case "$1" in
		-t)	table=t;;
		-T)	table=;;
		-v)	verbose=-v; quiet=;;
		-V|-q)	verbose=;   quiet=-q;;
		-l)	report=t;;
		-L)	report=;;
		-gz)	command=gzip;	  tag=gz;;
		-z)	command=gzip;	  tag=z;;
		-I)	command=bzip2;	  tag=bz2;;
		-lz)	command=lzip;	  tag=lz;;
		-Z)	command=compress; tag=Z;;
		-zip)	command=zip;	  tag=zip;;
		-jar)	command=zip;	  tag=jar;;
		-[1-9])	qopts="$qopts $1";;
		--fast)	qopts="$qopts -1";;
		--best)	qopts="$qopts -9";;
		-s)	shift; suffix="$1";;
		-m)	shift; mode="$1";;
		-p)	preserve=p;;
		-P)	preserve=;;

		--)	shift; break;;
		-h)	bad=t; break;;
		-*)	bad=t; echo "$0: unknown option ($1)" 1>&2;;
		*)	break;;
		esac
		shift;;
	esac
done

case "$#,$bad" in
0,*|*,?*)	cat << EOF 1>&2
usage: $0 [ -t | -T ] [ -v | -V ] [ -l | -L ]
       [ -gz | -z | -I | -lz | -Z | -zip | -jar ] [ -# ] [ -s suffix ]
       [ -m mode ] [ -p | -P ] [ -h ] [ -- ] file ...
where "file" is a file, a directory, a feathered file ending
in .{Z,gz,z,bz2,lz}, or a tarred and feathered file ending in
.{tar.,tar,ta,t}{Z,gz,z,bz2,lz} or .{zip,jar}.
	-t	only list table of contents of given files
	-T	(un)tar and (de)feather given files
	-v	verbose output, eg report compression ratios when feathering
	-V,-q	non-verbose output
	-l	list the resulting files and directories
	-L	don't list the resulting files and directories
	-gz	use gzip and a .gz suffix when feathering
	-z	use gzip and a .z suffix when feathering
	-I	use bzip2 and a .bz2 suffix when feathering
	-lz	use lzip and a .lz suffix when feathering
	-Z	use compress and a .Z suffix when feathering
	-zip	use zip and a .zip suffix when feathering
	-jar	use zip and a .jar suffix when feathering
	-#	where # is 1 thru 9 is passed to *zip*, also --fast or --best
	-s	create tar and feather files with the given suffix style
	-m	apply the given chmod argument to created tar and feather files
	-p	preserve modes when untarring
	-P	don't preserve modes when untarring
	-h	just print this help message
	--	remaining arguments are to be taken as files
Defaults are "$dfltopts"
and as overridden by ZOPTS, currently "$ZOPTS".
Version $version
EOF
		exit 1;;
esac

###############################################################################

iwd=`pwd` || exit 2

tmp=/tmp/z$$
trap 'rm -f $tmp; exit 4' 1 2 13 15

for arg
do
	cd "$iwd" || exit 3

	case "$arg" in
	*/)	arg=`echo "$arg" | sed 's,/*$,,'`;;
	esac

	case "$arg" in
	*/*)	cd  `echo "$arg" | sed 's,[^/]*$,,'` || continue
		arg=`echo "$arg" | sed 's,.*/,,'`;;
	esac

	case "$arg" in

###############################################################################
# defeather and untar feathered tar files
###############################################################################

	*.tar.[Zz]|*.tar[Zz]|*.ta[Zz]|*.t[Zz]|*.tar.gz|*.targz|*.tagz|*.tgz|*.tar.bz2|*.tarbz2|*.tabz2|*.tbz2|*.tar.lz|*.tlz|*.zip|*.jar)
		case "$arg" in
		*Z)		ucommand=uncompress;   utag=Z;;
		*zip|*jar)	ucommand=unzip;        utag=;;
		*bz2)		ucommand='bzip2 -d';   utag=bz2;;
		*lz)		ucommand='lzip -d';    utag=lz;;
		*)		ucommand='gzip -d -n'; utag=z;;
		esac

		case "$table" in
		?*)	echo "$arg:"
			case "$ucommand" in
			unzip*)	$ucommand -l $verbose "$arg";;
			*)	$ucommand < "$arg" | tar -tvf -;;
			esac
			continue;;
		esac

		case "$arg" in
		*.zip|*.jar)
			tarf="$arg"
			dirf=`echo "$tarf" | sed 's/\.[^\.]*$//'`;;
		*.tar.[Zz]|*.tar.gz|*.tar.bz2|*.tar.lz)
			tarf=`echo "$arg"  | sed 's/\.[^\.]*$//'`
			dirf=`echo "$tarf" | sed 's/.tar$//'`;;
		*)
			dirf=`echo "$arg"  | sed 's/\.[^\.]*$//'`
			tarf="$dirf".tar;;
		esac

		if test "$tarf" != "$arg" -a \( -f "$tarf" -o -d "$tarf" \)
		then
			echo "$0: $tarf already exists" 1>&2
			continue
		elif test -f "$dirf" -o -d "$dirf"
		then
			echo "$0: $dirf already exists" 1>&2
			continue
		fi

		case "$arg" in
		*.tar.[Zz]|*.tar.gz|*.tar.bz2|*.tar.lz|*.zip|*.jar)
			;;
		*)
			if test -f "$tarf".$utag -o -d "$tarf".$utag
			then
				echo "$0: $tarf.$utag already exists" 1>&2
				continue
			fi
			mv "$arg" "$tarf".$utag || continue
			arg="$tarf".$utag;;
		esac

		case "$arg" in
		*.zip|*.jar)
			mkdir "$dirf" || continue
			cd "$dirf"    || continue
			$ucommand -q ../"$arg" 2>&1 | tee $tmp 1>&2;;

		*)
			$ucommand "$arg"
			if test -f "$arg" -o ! -s "$tarf"
			then
				echo "$0: cannot defeather $arg" 1>&2
				continue
			fi

			mkdir "$dirf" || continue
			cd "$dirf"    || continue
			tar -x${preserve}f ../"$tarf" 2>&1 | tee $tmp 1>&2;;
		esac

		if test ! -s $tmp
		then
			ls -a | sed '/^\.$/d; /^\.\.$/d' > $tmp
			nfiles=`wc -l < $tmp`

			case "`echo $nfiles`" in
			0)	cat << EOF 1>&2
$0: warning: keeping empty tar file $tarf; untarred as directory $dirf
EOF
				;;

			1)	rm ../"$tarf"
				case "`cat $tmp`" in
				"$dirf")	cd ..			     &&
						mv "$dirf" "$dirf".Z$$	     &&
						    mv "$dirf".Z$$/"$dirf" . &&
						    rmdir "$dirf".Z$$;;
				*)		cat << EOF 1>&2
$0: untarred $tarf in directory $dirf
EOF
						;;
				esac;;

			*)	rm ../"$tarf"
				cat << EOF 1>&2
$0: untarred $tarf in directory $dirf
EOF
				;;
			esac

		else
			cat << EOF 1>&2
$0: cannot untar $tarf; remnants in directory $dirf
EOF
		fi

		case "$report" in
		?*)	echo "$dirf";;
		esac

		rm -f $tmp;;

###############################################################################
# defeather plain feathered files
###############################################################################

	*.[Zz]|*.gz|*.bz2|*.lz)
		case "$table" in
		?*)	echo "$arg:"; continue;;
		esac

		case "$arg" in
		*Z)	ucommand=uncompress;;
		*bz2)	ucommand='bzip2 -d';;
		*lz)	ucommand='lzip -d';;
		*)	ucommand='gzip -d -n';;
		esac

		file=`echo "$arg" | sed 's/\.[^\.]*$//'`
		if test -f "$file" -o -d "$file"
		then
			echo "$0: $file already exists" 1>&2
		else
			$ucommand "$arg"
			case "$report" in
			?*)	echo "$file";;
			esac
		fi;;

###############################################################################

	*)
		case "$command" in
		compress)	cargs="$verbose -f";;
		gzip)		cargs="$verbose -S .$tag $qopts";;
		bzip2)		cargs="$verbose $qopts";;
		lzip)		cargs="$verbose $qopts";;
		zip)		cargs="$quiet -r -y -m -T $qopts";;
		*)		cat << EOF 1>&2
$0: unsupported feather command ($command), skipping $arg
EOF
				continue;;
		esac

###############################################################################
# tar and feather directories
###############################################################################

		if test -d "$arg"
		then
			case "$table" in
			?*)	echo "$arg:"
				ls -al "$arg"
				continue;;
			esac

			case "$suffix" in
			.tar.[Zz]|.tar.gz|tar.[Zz]|tar.gz)  suffix=.tar.$tag;;
			.tar.bz2|tar.bz2)		    suffix=.tar.$tag;;
			.tar.lz|tar.lz)			    suffix=.tar.$tag;;
			.tar[Zz]|.targz|tar[Zz]|targz)	    suffix=.tar$tag;;
			.tarbz2|tarbz2)			    suffix=.tar$tag;;
			.ta[Zz]|.tagz|ta[Zz]|tagz)	    suffix=.ta$tag;;
			.tabz2|tabz2)			    suffix=.ta$tag;;
			.t[Zz]|.tgz|t[Zz]|tgz)		    suffix=.t$tag;;
			.zip|zip|.jar|jar|.tbz2|tbz2)	    suffix=.t$tag;;
			.tlz|tlz)			    suffix=.t$tag;;
			*)				    cat << EOF 1>&2
$0: invalid tar and feather suffix ($suffix), skipping $arg
EOF
							    continue;;
			esac
			case "$command" in
			zip)	suffix=.$tag;;
			esac

			if test $command != zip -a \
				\( -f "$arg".tar -o -d "$arg".tar \)
			then
				echo "$0: $arg.tar already exists" 1>&2
				continue
			elif test $command != zip -a \
				 \( -f "$arg".tar.$tag -o -d "$arg".tar.$tag \)
			then
				echo "$0: $arg.tar.$tag already exists" 1>&2
				continue
			elif test -f "$arg"$suffix -o -d "$arg"$suffix
			then
				echo "$0: $arg$suffix already exists" 1>&2
				continue
			fi

			dmode=`ls -dl "$arg" | sed '
				s/^d\([^ ]*\).*/\1/
				s/rw./6/g; s/r-./4/g; s/-w./2/g; s/--./0/g'`
			case "$dmode" in
			[0246][0246][0246])	;;
			*)			cat << EOF 1>&2
$0: cannot determine directory modes ($arg), using 600
EOF
						dmode=600;;
			esac

			case "$command" in
			zip)	$command $cargs "$arg"$suffix "$arg"
				chmod $dmode "$arg"$suffix

				case "$mode" in
				-)	;;
				?*)	chmod "$mode" "$arg"$suffix;;
				esac

				case "$report" in
				?*)	echo "$arg"$suffix;;
				esac
				continue;;
			esac

			> "$arg".tar		|| continue
			chmod $dmode "$arg".tar ||
				{ rm -f "arg".tar; continue; }

			case "$mode" in
			-)	;;
			?*)	chmod "$mode" "$arg".tar ||
					{ rm -f "$arg".tar; continue; };;
			esac

			tar -cf "$arg".tar "$arg" 2>&1 | tee $tmp 1>&2

			if test ! -s $tmp -a -s "$arg".tar
			then
				rm -r "$arg" &
				$command $cargs "$arg".tar
				case "$arg".tar.$tag in
				"$arg"$suffix)	;;
				*)	test -f "$arg".tar.$tag &&
					    mv "$arg".tar.$tag "$arg"$suffix;;
				esac
				case "$report" in
				?*)	echo "$arg"$suffix;;
				esac
				wait
			else
				rm -f "$arg".tar
				echo "$0: $arg$suffix not created" 1>&2
			fi

			rm -f $tmp

###############################################################################
# feather plain files
###############################################################################

		else
			case "$table" in
			?*)	echo "$arg:"; continue;;
			esac

			if test -f "$arg".$tag -o -d "$arg".$tag
			then
				echo "$0: $arg.$tag already exists" 1>&2
			else
				case "$command" in
				zip)	$command $cargs "$arg".$tag "$arg";;
				*)	$command $cargs "$arg";;
				esac
				case "$report" in
				?*)	echo "$arg".$tag;;
				esac
			fi

		fi;;
	esac
done