summaryrefslogtreecommitdiffstats
path: root/contrib/bacman.sh.in
blob: 39fbe99c18dccd262941673a21c2adf76a153293 (plain)
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
#!/bin/bash
#
#   bacman: recreate a package from a running system
#   This script rebuilds an already installed package using metadata
#   stored into the pacman database and system files
#
#   Copyright (c) 2008 locci <carlocci_at_gmail_dot_com>
#   Copyright (c) 2008-2016 Pacman Development Team <pacman-dev@archlinux.org>
#
#   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/>.
#

shopt -s extglob
shopt -s nullglob

declare -r myname='bacman'
declare -r myver='@PACKAGE_VERSION@'
USE_COLOR='y'
INCLUDE_PACNEW='n'
QUIET=0
# Required for fakeroot because options are shifted off the array.
ARGS=("$@")

m4_include(../scripts/library/output_format.sh)
m4_include(../scripts/library/parseopts.sh)

# Lazy recursive clean up of temporary dirs
work_dir_root="${TMPDIR:-/tmp}/bacman"
clean_up() {
	rm -rf "$work_dir_root".*
	echo
	exit
}
# Trap termination signals
trap clean_up SIGHUP SIGINT SIGTERM

# Print usage information
usage() {
	printf "%s (pacman) %s\n" "$myname" "$myver"
	echo
	printf -- "$(gettext "Recreate packages using pacman's database and system files")\n"
	echo
	printf -- "$(gettext "Usage: %s [options] <package(s)>")\n" "$0"
	echo
	printf -- "$(gettext "Options:")\n"
	printf -- "$(gettext "  -h, --help       Show this help message and exit")\n"
	printf -- "$(gettext "  -q, --quiet      Silence most of the status reporting")\n"
	printf -- "$(gettext "  -m, --nocolor    Disable colorized output messages")\n"
	printf -- "$(gettext "  -o, --out <dir>  Write output to specified directory (instead of \$PKGDEST)")\n"
	printf -- "$(gettext "  --pacnew         Package .pacnew files")\n"
	echo
	printf -- "$(gettext "Examples:")" 
	printf -- "    %s linux-headers\n" "$myname"
	printf -- "    %s -o ~/packages libarchive\n" "$myname"
	printf -- "    %s --nocolor --pacnew gzip make binutils\n" "$myname"
	printf -- "    %s \$(pacman -Qq)\n" "$myname"
	echo
}

# Print version information
version() {
	printf "%s %s\n" "$myname" "$myver"
	echo 'Copyright (C) 2008 locci <carlocci_at_gmail_dot_com>'
	echo 'Copyright (C) 2008-2016 Pacman Development Team <pacman-dev@archlinux.org>'
}


# Printing the usage information takes precedence over every other parameter
for option in "$@"; do
	[[ $option == "-h" || $option == "--help" ]] && usage && exit 0
done

# Parse arguments
OPT_SHORT='o:qmv'
OPT_LONG=('out:' 'quiet' 'nocolor' 'pacnew' 'version')
if ! parseopts "$OPT_SHORT" "${OPT_LONG[@]}" -- "$@"; then
	usage
	exit 1
fi
set -- "${OPTRET[@]}"
unset OPT_SHORT OPT_LONG OPTRET

while :; do
	case "$1" in
		-o|--out)
			pkg_dest=$2
			[[ ! -d "$2" ]] && echo -e "The directory \e[39;1m$2\e[0m does not exist!" && exit 3
			shift ;;
		-q|--quiet)
			QUIET=1 ;;
		-m|--nocolor)
			USE_COLOR='n' ;;
		--pacnew)
			INCLUDE_PACNEW='y' ;;
		-v|--version)
			version
			exit 0 ;;
		--)
			shift
			break 2 ;;
	esac
	shift
done

# Configure colored output
m4_include(../scripts/library/term_colors.sh)

# Retrieve the list of packages to be assembled and break if none was specified
pkg_list=($*)
if [[ ${#pkg_list[@]} == 0 ]]; then
	usage
	exit 1
fi

# Run with fake root privileges if EUID is not root
if (( EUID )); then
	if [[ -f /usr/bin/fakeroot ]]; then
		msg "Entering fakeroot environment"
		export INFAKEROOT="1"
		/usr/bin/fakeroot -u -- "$0" "${ARGS[@]}"
		exit $?
	else
		warning "installing fakeroot or running $myname as root is required to"
		plain   "         preserve the ownership permissions of files in some packages\n"
	fi
fi

# Source environmental variables and specify fallbacks
if [[ ! -r @sysconfdir@/pacman.conf ]]; then
	error "unable to read @sysconfdir@/pacman.conf"
	exit 1
fi
eval $(awk '/DBPath/ {print $1$2$3}' @sysconfdir@/pacman.conf)
pac_db="${DBPath:-@localstatedir@/lib/pacman/}/local"
if [[ ! -r @sysconfdir@/makepkg.conf ]]; then
	error "unable to read @sysconfdir@/makepkg.conf"
	exit 1
fi
source "@sysconfdir@/makepkg.conf"
if [[ -r ~/.makepkg.conf ]]; then
	source ~/.makepkg.conf
fi
PKGDEST="${PKGDEST:-$PWD}"
pkg_dest="${pkg_dest:-$PKGDEST}"
pkg_pkger="${PACKAGER:-'Unknown Packager'}"

# Check for an existing database
if [[ ! -d $pac_db ]]; then
	error "pacman database directory ${pac_db} not found"
	exit 1
fi

# Assemble a single package: $1 = pkgname
fakebuild() {
	pkg_name="$1"
	pkg_dir=("$pac_db/$pkg_name"-+([^-])-+([^-]))
	pkg_namver=("${pkg_dir[@]##*/}")

	# Checks database for specified package
	if (( ${#pkg_dir[@]} != 1 )); then
		error "%d entries for package %s found in pacman database" \
			${#pkg_dir[@]} "${pkg_name}"
		msg2 "%s" "${pkg_dir[@]}"
		exit 1
	fi
	if [[ ! -d $pkg_dir ]]; then
		error "package %s is found in pacman database," "${pkg_name}"
		plain "       but '%s' is not a directory" "${pkg_dir}"
		exit 1
	fi

	# Create working directory
	msg "Package: ${pkg_namver}"
	work_dir=$(mktemp -d "${work_dir_root}.XXXXXXXXXX")
	cd "$work_dir" || exit 1

	# Assemble list of files which belong to the package and tar them
	msg2 "Copying package files..."

	while read i; do
		if [[ -z $i ]]; then
			continue
		fi

		if [[ $i == %+([A-Z])% ]]; then
			current=$i
			continue
		fi

		case "$current" in
			%FILES%)
				local_file="/$i"
				package_file="$work_dir/$i"

				if [[ ! -e $local_file ]]; then
					warning "package file $local_file is missing"
					continue
				fi
				;;

			%BACKUP%)
				# Get the MD5 checksum.
				original_md5="${i##*$'\t'}"
				# Strip the md5sum after the tab.
				i="${i%$'\t'*}"
				local_file="/$i.pacnew"
				package_file="$work_dir/$i"

				# Include unmodified .pacnew files.
				local_md5="$(md5sum "$local_file" | cut -d' ' -f1)"
				if [[ $INCLUDE_PACNEW == 'n' ]] \
				|| [[ ! -e $local_file ]] \
				|| [[ $local_md5 != $original_md5 ]]; then
					# Warn about modified files.
					local_md5="$(md5sum "/$i" | cut -d' ' -f1)"
					if [[ $local_md5 != $original_md5 ]]; then
						warning "package file /$i has been modified"
					fi
					# Let the normal file be included in the %FILES% list.
					continue
				fi
				;;

			*)
				continue
				;;
		esac

		# Tar files
		ret=0
		bsdtar -cnf - -s'/.pacnew$//' "$local_file" 2> /dev/null | bsdtar -xpf - 2> /dev/null
		# Workaround to bsdtar not reporting a missing file as an error
		if ! [[ -e $package_file || -L $package_file ]]; then
			error "unable to add $local_file to the package"
			plain "       If your user does not have permission to read this file, then"
			plain "       you will need to run $myname as root."
			rm -rf "$work_dir"
			exit 1
		fi
	done < "$pkg_dir"/files

	ret=$?
	if (( ret )); then
		rm -rf "$work_dir"
		exit 1
	fi

	# Calculate package size
	pkg_size=$(du -sk | awk '{print $1 * 1024}')

	# Reconstruct .PKGINFO from database
	# TODO adopt makepkg's write_pkginfo() into this or scripts/library
	msg2 "Generating .PKGINFO metadata..."
	echo "# Generated by $myname $myver"    > .PKGINFO
	if [[ $INFAKEROOT == "1" ]]; then
		echo "# Using $(fakeroot -v)"    >> .PKGINFO
	fi
	echo "# $(LC_ALL=C date)"    >> .PKGINFO
	echo "#"    >> .PKGINFO
	while read i; do
		if [[ -z $i ]]; then
			continue;
		fi
		if [[ $i == %+([A-Z])% ]]; then
			current=$i
			continue
		fi

		case "$current" in
			# desc
			%NAME%)
				echo "pkgname = $i"    >> .PKGINFO
				;;
			%VERSION%)
				echo "pkgver = $i"    >> .PKGINFO
				;;
			%DESC%)
				echo "pkgdesc = $i"    >> .PKGINFO
				;;
			%URL%)
				echo "url = $i"    >> .PKGINFO
				;;
			%LICENSE%)
				echo "license = $i"    >> .PKGINFO
				;;
			%ARCH%)
				echo "arch = $i"    >> .PKGINFO
				pkg_arch="$i"
				;;
			%BUILDDATE%)
				echo "builddate = $(date -u "+%s")"    >> .PKGINFO
				;;
			%PACKAGER%)
				echo "packager = $pkg_pkger"        >> .PKGINFO
				;;
			%SIZE%)
				echo "size = $pkg_size"        >> .PKGINFO
				;;
			%GROUPS%)
				echo "group = $i"    >> .PKGINFO
				;;
			%REPLACES%)
				echo "replaces = $i"    >> .PKGINFO
				;;
			%DEPENDS%)
				echo "depend = $i"   >> .PKGINFO
				;;
			%OPTDEPENDS%)
				echo "optdepend = $i" >> .PKGINFO
				;;
			%CONFLICTS%)
				echo "conflict = $i" >> .PKGINFO
				;;
			%PROVIDES%)
				echo "provides = $i"  >> .PKGINFO
				;;
			%BACKUP%)
				# Strip the md5sum after the tab
				echo "backup = ${i%%$'\t'*}"   >> .PKGINFO
				;;
		esac
	done < <(cat "$pkg_dir"/{desc,files})

	comp_files=".PKGINFO"

	# Add instal file if present
	if [[ -f $pkg_dir/install ]]; then
		cp "$pkg_dir/install" "$work_dir/.INSTALL"
		comp_files+=" .INSTALL"
	fi
	if [[ -f $pkg_dir/changelog ]]; then
		cp "$pkg_dir/changelog" "$work_dir/.CHANGELOG"
		comp_files+=" .CHANGELOG"
	fi

	# Fixes owner:group and permissions for .PKGINFO, .CHANGELOG, .INSTALL
	chown root:root "$work_dir"/{.PKGINFO,.CHANGELOG,.INSTALL} 2> /dev/null
	chmod 644 "$work_dir"/{.PKGINFO,.CHANGELOG,.INSTALL} 2> /dev/null

	# Generate the package
	msg2 "Generating the package..."

	pkg_file="$pkg_dest/$pkg_namver-$pkg_arch${PKGEXT}"
	ret=0

	# Move compressed package to destination
	# TODO: Maybe this can be set globally for robustness
	shopt -s -o pipefail
	bsdtar -cf - $comp_files * |
	case "$PKGEXT" in
		*tar.gz)  gzip -c -f -n ;;
		*tar.bz2) bzip2 -c -f ;;
		*tar.xz)  xz -c -z - ;;
		*tar.Z)   compress -c -f ;;
		*tar)     cat ;;
		*) warning "'%s' is not a valid archive extension." \
		"$PKGEXT"; cat ;;
	esac > "${pkg_file}"; ret=$?

	# Evaluate return code
	if (( ret )); then
		error "Unable to write package to $pkg_dest"
		plain "       Maybe the disk is full or you do not have write access"
		rm -rf "$work_dir"
		exit 1
	fi

	# Clean up working directory
	rm -rf "$work_dir"
}


for PKG in ${pkg_list[@]}; do
	fakebuild $PKG
done
msg "Done."

exit 0

# vim: set noet: