portsnap.sh revision 154693
1#!/bin/sh 2 3#- 4# Copyright 2004-2005 Colin Percival 5# All rights reserved 6# 7# Redistribution and use in source and binary forms, with or without 8# modification, are permitted providing that the following conditions 9# are met: 10# 1. Redistributions of source code must retain the above copyright 11# notice, this list of conditions and the following disclaimer. 12# 2. Redistributions in binary form must reproduce the above copyright 13# notice, this list of conditions and the following disclaimer in the 14# documentation and/or other materials provided with the distribution. 15# 16# THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 17# IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED 18# WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 19# ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY 20# DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 21# DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 22# OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 23# HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, 24# STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING 25# IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 26# POSSIBILITY OF SUCH DAMAGE. 27 28# $FreeBSD: head/usr.sbin/portsnap/portsnap/portsnap.sh 154693 2006-01-22 23:48:07Z cperciva $ 29 30#### Usage function -- called from command-line handling code. 31 32# Usage instructions. Options not listed: 33# --debug -- don't filter output from utilities 34# --no-stats -- don't show progress statistics while fetching files 35usage() { 36 cat <<EOF 37usage: `basename $0` [options] command ... [path] 38 39Options: 40 -d workdir -- Store working files in workdir 41 (default: /var/db/portsnap/) 42 -f conffile -- Read configuration options from conffile 43 (default: /etc/portsnap.conf) 44 -I -- Update INDEX only. (update command only) 45 -k KEY -- Trust an RSA key with SHA256 hash of KEY 46 -p portsdir -- Location of uncompressed ports tree 47 (default: /usr/ports/) 48 -s server -- Server from which to fetch updates. 49 (default: portsnap.FreeBSD.org) 50 path -- Extract only parts of the tree starting with the given 51 string. (extract command only) 52Commands: 53 fetch -- Fetch a compressed snapshot of the ports tree, 54 or update an existing snapshot. 55 cron -- Sleep rand(3600) seconds, and then fetch updates. 56 extract -- Extract snapshot of ports tree, replacing existing 57 files and directories. 58 update -- Update ports tree to match current snapshot, replacing 59 files and directories which have changed. 60EOF 61 exit 0 62} 63 64#### Parameter handling functions. 65 66# Initialize parameters to null, just in case they're 67# set in the environment. 68init_params() { 69 KEYPRINT="" 70 EXTRACTPATH="" 71 WORKDIR="" 72 PORTSDIR="" 73 CONFFILE="" 74 COMMAND="" 75 COMMANDS="" 76 QUIETREDIR="" 77 QUIETFLAG="" 78 STATSREDIR="" 79 XARGST="" 80 NDEBUG="" 81 DDSTATS="" 82 INDEXONLY="" 83 SERVERNAME="" 84 REFUSE="" 85} 86 87# Parse the command line 88parse_cmdline() { 89 while [ $# -gt 0 ]; do 90 case "$1" in 91 -d) 92 if [ $# -eq 1 ]; then usage; fi 93 if [ ! -z "${WORKDIR}" ]; then usage; fi 94 shift; WORKDIR="$1" 95 ;; 96 --debug) 97 QUIETREDIR="/dev/stderr" 98 STATSREDIR="/dev/stderr" 99 QUIETFLAG=" " 100 NDEBUG=" " 101 XARGST="-t" 102 DDSTATS=".." 103 ;; 104 -f) 105 if [ $# -eq 1 ]; then usage; fi 106 if [ ! -z "${CONFFILE}" ]; then usage; fi 107 shift; CONFFILE="$1" 108 ;; 109 -h | --help | help) 110 usage 111 ;; 112 -I) 113 INDEXONLY="YES" 114 ;; 115 -k) 116 if [ $# -eq 1 ]; then usage; fi 117 if [ ! -z "${KEYPRINT}" ]; then usage; fi 118 shift; KEYPRINT="$1" 119 ;; 120 --no-stats) 121 if [ -z "${STATSREDIR}" ]; then 122 STATSREDIR="/dev/null" 123 DDSTATS=".. " 124 fi 125 ;; 126 -p) 127 if [ $# -eq 1 ]; then usage; fi 128 if [ ! -z "${PORTSDIR}" ]; then usage; fi 129 shift; PORTSDIR="$1" 130 ;; 131 -s) 132 if [ $# -eq 1 ]; then usage; fi 133 if [ ! -z "${SERVERNAME}" ]; then usage; fi 134 shift; SERVERNAME="$1" 135 ;; 136 cron | extract | fetch | update) 137 COMMANDS="${COMMANDS} $1" 138 ;; 139 *) 140 if [ $# -gt 1 ]; then usage; fi 141 if echo ${COMMANDS} | grep -vq extract; then 142 usage 143 fi 144 EXTRACTPATH="$1" 145 ;; 146 esac 147 shift 148 done 149 150 if [ -z "${COMMANDS}" ]; then 151 usage 152 fi 153} 154 155# If CONFFILE was specified at the command-line, make 156# sure that it exists and is readable. 157sanity_conffile() { 158 if [ ! -z "${CONFFILE}" ] && [ ! -r "${CONFFILE}" ]; then 159 echo -n "File does not exist " 160 echo -n "or is not readable: " 161 echo ${CONFFILE} 162 exit 1 163 fi 164} 165 166# If a configuration file hasn't been specified, use 167# the default value (/etc/portsnap.conf) 168default_conffile() { 169 if [ -z "${CONFFILE}" ]; then 170 CONFFILE="/etc/portsnap.conf" 171 fi 172} 173 174# Read {KEYPRINT, SERVERNAME, WORKDIR, PORTSDIR} from the configuration 175# file if they haven't already been set. If the configuration 176# file doesn't exist, do nothing. 177# Also read REFUSE (which cannot be set via the command line) if it is 178# present in the configuration file. 179parse_conffile() { 180 if [ -r "${CONFFILE}" ]; then 181 for X in KEYPRINT WORKDIR PORTSDIR SERVERNAME; do 182 eval _=\$${X} 183 if [ -z "${_}" ]; then 184 eval ${X}=`grep "^${X}=" "${CONFFILE}" | 185 cut -f 2- -d '=' | tail -1` 186 fi 187 done 188 189 if grep -qE "^REFUSE[[:space:]]" ${CONFFILE}; then 190 REFUSE="^(` 191 grep -E "^REFUSE[[:space:]]" "${CONFFILE}" | 192 cut -c 7- | xargs echo | tr ' ' '|' 193 `)" 194 fi 195 fi 196} 197 198# If parameters have not been set, use default values 199default_params() { 200 _QUIETREDIR="/dev/null" 201 _QUIETFLAG="-q" 202 _STATSREDIR="/dev/stdout" 203 _WORKDIR="/var/db/portsnap" 204 _PORTSDIR="/usr/ports" 205 _NDEBUG="-n" 206 for X in QUIETREDIR QUIETFLAG STATSREDIR WORKDIR PORTSDIR NDEBUG; do 207 eval _=\$${X} 208 eval __=\$_${X} 209 if [ -z "${_}" ]; then 210 eval ${X}=${__} 211 fi 212 done 213} 214 215# Perform sanity checks and set some final parameters 216# in preparation for fetching files. Also chdir into 217# the working directory. 218fetch_check_params() { 219 export HTTP_USER_AGENT="portsnap (${COMMAND}, `uname -r`)" 220 221 _SERVERNAME_z=\ 222"SERVERNAME must be given via command line or configuration file." 223 _KEYPRINT_z="Key must be given via -k option or configuration file." 224 _KEYPRINT_bad="Invalid key fingerprint: " 225 _WORKDIR_bad="Directory does not exist or is not writable: " 226 227 if [ -z "${SERVERNAME}" ]; then 228 echo -n "`basename $0`: " 229 echo "${_SERVERNAME_z}" 230 exit 1 231 fi 232 if [ -z "${KEYPRINT}" ]; then 233 echo -n "`basename $0`: " 234 echo "${_KEYPRINT_z}" 235 exit 1 236 fi 237 if ! echo "${KEYPRINT}" | grep -qE "^[0-9a-f]{64}$"; then 238 echo -n "`basename $0`: " 239 echo -n "${_KEYPRINT_bad}" 240 echo ${KEYPRINT} 241 exit 1 242 fi 243 if ! [ -d "${WORKDIR}" -a -w "${WORKDIR}" ]; then 244 echo -n "`basename $0`: " 245 echo -n "${_WORKDIR_bad}" 246 echo ${WORKDIR} 247 exit 1 248 fi 249 cd ${WORKDIR} || exit 1 250 251 BSPATCH=/usr/bin/bspatch 252 SHA256=/sbin/sha256 253 PHTTPGET=/usr/libexec/phttpget 254} 255 256# Perform sanity checks and set some final parameters 257# in preparation for extracting or updating ${PORTSDIR} 258# Complain if ${PORTSDIR} exists but is not writable, 259# but don't complain if ${PORTSDIR} doesn't exist. 260extract_check_params() { 261 _WORKDIR_bad="Directory does not exist: " 262 _PORTSDIR_bad="Directory is not writable: " 263 264 if ! [ -d "${WORKDIR}" ]; then 265 echo -n "`basename $0`: " 266 echo -n "${_WORKDIR_bad}" 267 echo ${WORKDIR} 268 exit 1 269 fi 270 if [ -d "${PORTSDIR}" ] && ! [ -w "${PORTSDIR}" ]; then 271 echo -n "`basename $0`: " 272 echo -n "${_PORTSDIR_bad}" 273 echo ${PORTSDIR} 274 exit 1 275 fi 276 277 if ! [ -d "${WORKDIR}/files" -a -r "${WORKDIR}/tag" \ 278 -a -r "${WORKDIR}/INDEX" -a -r "${WORKDIR}/tINDEX" ]; then 279 echo "No snapshot available. Try running" 280 echo "# `basename $0` fetch" 281 exit 1 282 fi 283 284 MKINDEX=/usr/libexec/make_index 285} 286 287# Perform sanity checks and set some final parameters 288# in preparation for updating ${PORTSDIR} 289update_check_params() { 290 extract_check_params 291 292 if ! [ -r ${PORTSDIR}/.portsnap.INDEX ]; then 293 echo "${PORTSDIR} was not created by portsnap." 294 echo -n "You must run '`basename $0` extract' before " 295 echo "running '`basename $0` update'." 296 exit 1 297 fi 298 299} 300 301#### Core functionality -- the actual work gets done here 302 303# Use an SRV query to pick a server. If the SRV query doesn't provide 304# a useful answer, use the server name specified by the user. 305# Put another way... look up _http._tcp.${SERVERNAME} and pick a server 306# from that; or if no servers are returned, use ${SERVERNAME}. 307# This allows a user to specify "portsnap.freebsd.org" (in which case 308# portsnap will select one of the mirrors) or "portsnap5.tld.freebsd.org" 309# (in which case portsnap will use that particular server, since there 310# won't be an SRV entry for that name). 311# 312# We don't implement the recommendations from RFC 2782 completely, since 313# we are only looking to pick a single server -- the recommendations are 314# targetted at applications which obtain a list of servers and then try 315# each in turn, but we are instead just going to pick one server and let 316# the user re-run portsnap if a broken server was selected. 317# 318# We also ignore the Port field, since we are always going to use port 80. 319fetch_pick_server() { 320# Check that host(1) exists (i.e., that the system wasn't built with the 321# NO_BIND flag set) and don't try to find a mirror if it doesn't exist. 322 if ! which -s host; then 323 return 324 fi 325 326 echo -n "Looking up ${SERVERNAME} mirrors..." 327 328# Issue the SRV query and pull out the Priority, Weight, and Target fields. 329 host -t srv "_http._tcp.${SERVERNAME}" | 330 grep -E "^_http._tcp.${SERVERNAME} has SRV record" | 331 cut -f 5,6,8 -d ' ' > serverlist 332 333# If no records, give up -- we'll just use the server name we were given. 334 if [ `wc -l < serverlist` -eq 0 ]; then 335 echo " none found." 336 return 337 fi 338 339# Find the highest priority level (lowest numeric value). 340 SRV_PRIORITY=`cut -f 1 -d ' ' serverlist | sort -n | head -1` 341 342# Add up the weights of the response lines at that priority level. 343 SRV_WSUM=0; 344 while read X; do 345 case "$X" in 346 ${SRV_PRIORITY}\ *) 347 SRV_W=`echo $X | cut -f 2 -d ' '` 348 SRV_WSUM=$(($SRV_WSUM + $SRV_W)) 349 ;; 350 esac 351 done < serverlist 352 353# If all the weights are 0, pretend that they are all 1 instead. 354 if [ ${SRV_WSUM} -eq 0 ]; then 355 SRV_WSUM=`grep -E "^${SRV_PRIORITY} " serverlist | wc -l` 356 SRV_W_ADD=1 357 else 358 SRV_W_ADD=0 359 fi 360 361# Pick a random value between 1 and the sum of the weights 362 SRV_RND=`jot -r 1 1 ${SRV_WSUM}` 363 364# Read through the list of mirrors and set SERVERNAME 365 while read X; do 366 case "$X" in 367 ${SRV_PRIORITY}\ *) 368 SRV_W=`echo $X | cut -f 2 -d ' '` 369 SRV_W=$(($SRV_W + $SRV_W_ADD)) 370 if [ $SRV_RND -le $SRV_W ]; then 371 SERVERNAME=`echo $X | cut -f 3 -d ' '` 372 break 373 else 374 SRV_RND=$(($SRV_RND - $SRV_W)) 375 fi 376 ;; 377 esac 378 done < serverlist 379 380 echo " using ${SERVERNAME}" 381} 382 383# Check that we have a public key with an appropriate hash, or 384# fetch the key if it doesn't exist. 385fetch_key() { 386 if [ -r pub.ssl ] && [ `${SHA256} -q pub.ssl` = ${KEYPRINT} ]; then 387 return 388 fi 389 390 echo -n "Fetching public key... " 391 rm -f pub.ssl 392 fetch ${QUIETFLAG} http://${SERVERNAME}/pub.ssl \ 393 2>${QUIETREDIR} || true 394 if ! [ -r pub.ssl ]; then 395 echo "failed." 396 return 1 397 fi 398 if ! [ `${SHA256} -q pub.ssl` = ${KEYPRINT} ]; then 399 echo "key has incorrect hash." 400 rm -f pub.ssl 401 return 1 402 fi 403 echo "done." 404} 405 406# Fetch a snapshot tag 407fetch_tag() { 408 rm -f snapshot.ssl tag.new 409 410 echo ${NDEBUG} "Fetching snapshot tag... " 411 fetch ${QUIETFLAG} http://${SERVERNAME}/$1.ssl 412 2>${QUIETREDIR} || true 413 if ! [ -r $1.ssl ]; then 414 echo "failed." 415 return 1 416 fi 417 418 openssl rsautl -pubin -inkey pub.ssl -verify \ 419 < $1.ssl > tag.new 2>${QUIETREDIR} || true 420 rm $1.ssl 421 422 if ! [ `wc -l < tag.new` = 1 ] || 423 ! grep -qE "^portsnap\|[0-9]{10}\|[0-9a-f]{64}" tag.new; then 424 echo "invalid snapshot tag." 425 return 1 426 fi 427 428 echo "done." 429 430 SNAPSHOTDATE=`cut -f 2 -d '|' < tag.new` 431 SNAPSHOTHASH=`cut -f 3 -d '|' < tag.new` 432} 433 434# Sanity-check the date on a snapshot tag 435fetch_snapshot_tagsanity() { 436 if [ `date "+%s"` -gt `expr ${SNAPSHOTDATE} + 31536000` ]; then 437 echo "Snapshot appears to be more than a year old!" 438 echo "(Is the system clock correct?)" 439 echo "Cowardly refusing to proceed any further." 440 return 1 441 fi 442 if [ `date "+%s"` -lt `expr ${SNAPSHOTDATE} - 86400` ]; then 443 echo -n "Snapshot appears to have been created more than " 444 echo "one day into the future!" 445 echo "(Is the system clock correct?)" 446 echo "Cowardly refusing to proceed any further." 447 return 1 448 fi 449} 450 451# Sanity-check the date on a snapshot update tag 452fetch_update_tagsanity() { 453 fetch_snapshot_tagsanity || return 1 454 455 if [ ${OLDSNAPSHOTDATE} -gt ${SNAPSHOTDATE} ]; then 456 echo -n "Latest snapshot on server is " 457 echo "older than what we already have!" 458 echo -n "Cowardly refusing to downgrade from " 459 date -r ${OLDSNAPSHOTDATE} 460 echo "to `date -r ${SNAPSHOTDATE}`." 461 return 1 462 fi 463} 464 465# Compare old and new tags; return 1 if update is unnecessary 466fetch_update_neededp() { 467 if [ ${OLDSNAPSHOTDATE} -eq ${SNAPSHOTDATE} ]; then 468 echo -n "Latest snapshot on server matches " 469 echo "what we already have." 470 echo "No updates needed." 471 rm tag.new 472 return 1 473 fi 474 if [ ${OLDSNAPSHOTHASH} = ${SNAPSHOTHASH} ]; then 475 echo -n "Ports tree hasn't changed since " 476 echo "last snapshot." 477 echo "No updates needed." 478 rm tag.new 479 return 1 480 fi 481 482 return 0 483} 484 485# Fetch snapshot metadata file 486fetch_metadata() { 487 rm -f ${SNAPSHOTHASH} tINDEX.new 488 489 echo ${NDEBUG} "Fetching snapshot metadata... " 490 fetch ${QUIETFLAG} http://${SERVERNAME}/t/${SNAPSHOTHASH} 491 2>${QUIETREDIR} || return 492 if [ `${SHA256} -q ${SNAPSHOTHASH}` != ${SNAPSHOTHASH} ]; then 493 echo "snapshot metadata corrupt." 494 return 1 495 fi 496 mv ${SNAPSHOTHASH} tINDEX.new 497 echo "done." 498} 499 500# Warn user about bogus metadata 501fetch_metadata_freakout() { 502 echo 503 echo "Portsnap metadata is correctly signed, but contains" 504 echo "at least one line which appears bogus." 505 echo "Cowardly refusing to proceed any further." 506} 507 508# Sanity-check a snapshot metadata file 509fetch_metadata_sanity() { 510 if grep -qvE "^[0-9A-Z.]+\|[0-9a-f]{64}$" tINDEX.new; then 511 fetch_metadata_freakout 512 return 1 513 fi 514 if [ `look INDEX tINDEX.new | wc -l` != 1 ]; then 515 echo 516 echo "Portsnap metadata appears bogus." 517 echo "Cowardly refusing to proceed any further." 518 return 1 519 fi 520} 521 522# Take a list of ${oldhash}|${newhash} and output a list of needed patches 523fetch_make_patchlist() { 524 grep -vE "^([0-9a-f]{64})\|\1$" | 525 while read LINE; do 526 X=`echo ${LINE} | cut -f 1 -d '|'` 527 Y=`echo ${LINE} | cut -f 2 -d '|'` 528 if [ -f "files/${Y}.gz" ]; then continue; fi 529 if [ ! -f "files/${X}.gz" ]; then continue; fi 530 echo "${LINE}" 531 done 532} 533 534# Print user-friendly progress statistics 535fetch_progress() { 536 LNC=0 537 while read x; do 538 LNC=$(($LNC + 1)) 539 if [ $(($LNC % 10)) = 0 ]; then 540 echo -n $LNC 541 elif [ $(($LNC % 2)) = 0 ]; then 542 echo -n . 543 fi 544 done 545 echo -n " " 546} 547 548# Sanity-check an index file 549fetch_index_sanity() { 550 if grep -qvE "^[-_+./@0-9A-Za-z]+\|[0-9a-f]{64}$" INDEX.new || 551 fgrep -q "./" INDEX.new; then 552 fetch_metadata_freakout 553 return 1 554 fi 555} 556 557# Verify a list of files 558fetch_snapshot_verify() { 559 while read F; do 560 if [ `gunzip -c snap/${F} | ${SHA256} -q` != ${F} ]; then 561 echo "snapshot corrupt." 562 return 1 563 fi 564 done 565 return 0 566} 567 568# Fetch a snapshot tarball, extract, and verify. 569fetch_snapshot() { 570 fetch_tag snapshot || return 1 571 fetch_snapshot_tagsanity || return 1 572 fetch_metadata || return 1 573 fetch_metadata_sanity || return 1 574 575 rm -rf snap/ 576 577# Don't ask fetch(1) to be quiet -- downloading a snapshot of ~ 35MB will 578# probably take a while, so the progrees reports that fetch(1) generates 579# will be useful for keeping the users' attention from drifting. 580 echo "Fetching snapshot generated at `date -r ${SNAPSHOTDATE}`:" 581 fetch -r http://${SERVERNAME}/s/${SNAPSHOTHASH}.tgz || return 1 582 583 echo -n "Extracting snapshot... " 584 tar -xzf ${SNAPSHOTHASH}.tgz snap/ || return 1 585 rm ${SNAPSHOTHASH}.tgz 586 echo "done." 587 588 echo -n "Verifying snapshot integrity... " 589# Verify the metadata files 590 cut -f 2 -d '|' tINDEX.new | fetch_snapshot_verify || return 1 591# Extract the index 592 rm -f INDEX.new 593 gunzip -c snap/`look INDEX tINDEX.new | 594 cut -f 2 -d '|'`.gz > INDEX.new 595 fetch_index_sanity || return 1 596# Verify the snapshot contents 597 cut -f 2 -d '|' INDEX.new | fetch_snapshot_verify || return 1 598 echo "done." 599 600# Move files into their proper locations 601 rm -f tag INDEX tINDEX 602 rm -rf files 603 mv tag.new tag 604 mv tINDEX.new tINDEX 605 mv INDEX.new INDEX 606 mv snap/ files/ 607 608 return 0 609} 610 611# Update a compressed snapshot 612fetch_update() { 613 rm -f patchlist diff OLD NEW filelist INDEX.new 614 615 OLDSNAPSHOTDATE=`cut -f 2 -d '|' < tag` 616 OLDSNAPSHOTHASH=`cut -f 3 -d '|' < tag` 617 618 fetch_tag latest || return 1 619 fetch_update_tagsanity || return 1 620 fetch_update_neededp || return 0 621 fetch_metadata || return 1 622 fetch_metadata_sanity || return 1 623 624 echo -n "Updating from `date -r ${OLDSNAPSHOTDATE}` " 625 echo "to `date -r ${SNAPSHOTDATE}`." 626 627# Generate a list of wanted metadata patches 628 join -t '|' -o 1.2,2.2 tINDEX tINDEX.new | 629 fetch_make_patchlist > patchlist 630 631# Attempt to fetch metadata patches 632 echo -n "Fetching `wc -l < patchlist | tr -d ' '` " 633 echo ${NDEBUG} "metadata patches.${DDSTATS}" 634 tr '|' '-' < patchlist | 635 lam -s "tp/" - -s ".gz" | 636 xargs ${XARGST} ${PHTTPGET} ${SERVERNAME} \ 637 2>${STATSREDIR} | fetch_progress 638 echo "done." 639 640# Attempt to apply metadata patches 641 echo -n "Applying metadata patches... " 642 while read LINE; do 643 X=`echo ${LINE} | cut -f 1 -d '|'` 644 Y=`echo ${LINE} | cut -f 2 -d '|'` 645 if [ ! -f "${X}-${Y}.gz" ]; then continue; fi 646 gunzip -c < ${X}-${Y}.gz > diff 647 gunzip -c < files/${X}.gz > OLD 648 cut -c 2- diff | join -t '|' -v 2 - OLD > ptmp 649 grep '^\+' diff | cut -c 2- | 650 sort -k 1,1 -t '|' -m - ptmp > NEW 651 if [ `${SHA256} -q NEW` = ${Y} ]; then 652 mv NEW files/${Y} 653 gzip -n files/${Y} 654 fi 655 rm -f diff OLD NEW ${X}-${Y}.gz ptmp 656 done < patchlist 2>${QUIETREDIR} 657 echo "done." 658 659# Update metadata without patches 660 join -t '|' -v 2 tINDEX tINDEX.new | 661 cut -f 2 -d '|' /dev/stdin patchlist | 662 while read Y; do 663 if [ ! -f "files/${Y}.gz" ]; then 664 echo ${Y}; 665 fi 666 done > filelist 667 echo -n "Fetching `wc -l < filelist | tr -d ' '` " 668 echo ${NDEBUG} "metadata files... " 669 lam -s "f/" - -s ".gz" < filelist | 670 xargs ${XARGST} ${PHTTPGET} ${SERVERNAME} \ 671 2>${QUIETREDIR} 672 673 while read Y; do 674 if [ `gunzip -c < ${Y}.gz | ${SHA256} -q` = ${Y} ]; then 675 mv ${Y}.gz files/${Y}.gz 676 else 677 echo "metadata is corrupt." 678 return 1 679 fi 680 done < filelist 681 echo "done." 682 683# Extract the index 684 gunzip -c files/`look INDEX tINDEX.new | 685 cut -f 2 -d '|'`.gz > INDEX.new 686 fetch_index_sanity || return 1 687 688# If we have decided to refuse certain updates, construct a hybrid index which 689# is equal to the old index for parts of the tree which we don't want to 690# update, and equal to the new index for parts of the tree which gets updates. 691# This means that we should always have a "complete snapshot" of the ports 692# tree -- with the caveat that it isn't actually a snapshot. 693 if [ ! -z "${REFUSE}" ]; then 694 echo "Refusing to download updates for ${REFUSE}" \ 695 >${QUIETREDIR} 696 697 grep -Ev "${REFUSE}" INDEX.new > INDEX.tmp 698 grep -E "${REFUSE}" INDEX | 699 sort -m -k 1,1 -t '|' - INDEX.tmp > INDEX.new 700 rm -f INDEX.tmp 701 fi 702 703# Generate a list of wanted ports patches 704 join -t '|' -o 1.2,2.2 INDEX INDEX.new | 705 fetch_make_patchlist > patchlist 706 707# Attempt to fetch ports patches 708 echo -n "Fetching `wc -l < patchlist | tr -d ' '` " 709 echo ${NDEBUG} "patches.${DDSTATS}" 710 tr '|' '-' < patchlist | lam -s "bp/" - | 711 xargs ${XARGST} ${PHTTPGET} ${SERVERNAME} \ 712 2>${STATSREDIR} | fetch_progress 713 echo "done." 714 715# Attempt to apply ports patches 716 echo -n "Applying patches... " 717 while read LINE; do 718 X=`echo ${LINE} | cut -f 1 -d '|'` 719 Y=`echo ${LINE} | cut -f 2 -d '|'` 720 if [ ! -f "${X}-${Y}" ]; then continue; fi 721 gunzip -c < files/${X}.gz > OLD 722 ${BSPATCH} OLD NEW ${X}-${Y} 723 if [ `${SHA256} -q NEW` = ${Y} ]; then 724 mv NEW files/${Y} 725 gzip -n files/${Y} 726 fi 727 rm -f diff OLD NEW ${X}-${Y} 728 done < patchlist 2>${QUIETREDIR} 729 echo "done." 730 731# Update ports without patches 732 join -t '|' -v 2 INDEX INDEX.new | 733 cut -f 2 -d '|' /dev/stdin patchlist | 734 while read Y; do 735 if [ ! -f "files/${Y}.gz" ]; then 736 echo ${Y}; 737 fi 738 done > filelist 739 echo -n "Fetching `wc -l < filelist | tr -d ' '` " 740 echo ${NDEBUG} "new ports or files... " 741 lam -s "f/" - -s ".gz" < filelist | 742 xargs ${XARGST} ${PHTTPGET} ${SERVERNAME} \ 743 2>${QUIETREDIR} 744 745 while read Y; do 746 if [ `gunzip -c < ${Y}.gz | ${SHA256} -q` = ${Y} ]; then 747 mv ${Y}.gz files/${Y}.gz 748 else 749 echo "snapshot is corrupt." 750 return 1 751 fi 752 done < filelist 753 echo "done." 754 755# Remove files which are no longer needed 756 cut -f 2 -d '|' tINDEX INDEX | sort > oldfiles 757 cut -f 2 -d '|' tINDEX.new INDEX.new | sort | comm -13 - oldfiles | 758 lam -s "files/" - -s ".gz" | xargs rm -f 759 rm patchlist filelist oldfiles 760 761# We're done! 762 mv INDEX.new INDEX 763 mv tINDEX.new tINDEX 764 mv tag.new tag 765 766 return 0 767} 768 769# Do the actual work involved in "fetch" / "cron". 770fetch_run() { 771 fetch_pick_server 772 773 fetch_key || return 1 774 775 if ! [ -d files -a -r tag -a -r INDEX -a -r tINDEX ]; then 776 fetch_snapshot || return 1 777 fi 778 fetch_update || return 1 779} 780 781# Build a ports INDEX file 782extract_make_index() { 783 gunzip -c "${WORKDIR}/files/`look $1 ${WORKDIR}/tINDEX | 784 cut -f 2 -d '|'`.gz" | ${MKINDEX} /dev/stdin > ${PORTSDIR}/$2 785} 786 787# Create INDEX, INDEX-5, INDEX-6 788extract_indices() { 789 echo -n "Building new INDEX files... " 790 extract_make_index DESCRIBE.4 INDEX || return 1 791 extract_make_index DESCRIBE.5 INDEX-5 || return 1 792 extract_make_index DESCRIBE.6 INDEX-6 || return 1 793 echo "done." 794} 795 796# Create .portsnap.INDEX; if we are REFUSEing to touch certain directories, 797# merge the values from any exiting .portsnap.INDEX file. 798extract_metadata() { 799 if [ -z "${REFUSE}" ]; then 800 sort ${WORKDIR}/INDEX > ${PORTSDIR}/.portsnap.INDEX 801 elif [ -f ${PORTSDIR}/.portsnap.INDEX ]; then 802 grep -E "${REFUSE}" ${PORTSDIR}/.portsnap.INDEX \ 803 > ${PORTSDIR}/.portsnap.INDEX.tmp 804 grep -vE "${REFUSE}" ${WORKDIR}/INDEX | sort | 805 sort -m - ${PORTSDIR}/.portsnap.INDEX.tmp \ 806 > ${PORTSDIR}/.portsnap.INDEX 807 rm -f ${PORTSDIR}/.portsnap.INDEX.tmp 808 else 809 grep -vE "${REFUSE}" ${WORKDIR}/INDEX | sort \ 810 > ${PORTSDIR}/.portsnap.INDEX 811 fi 812} 813 814# Do the actual work involved in "extract" 815extract_run() { 816 mkdir -p ${PORTSDIR} || return 1 817 818 if ! 819 if ! [ -z "${EXTRACTPATH}" ]; then 820 grep "^${EXTRACTPATH}" ${WORKDIR}/INDEX 821 elif ! [ -z "${REFUSE}" ]; then 822 grep -vE "${REFUSE}" ${WORKDIR}/INDEX 823 else 824 cat ${WORKDIR}/INDEX 825 fi | while read LINE; do 826 FILE=`echo ${LINE} | cut -f 1 -d '|'` 827 HASH=`echo ${LINE} | cut -f 2 -d '|'` 828 echo ${PORTSDIR}/${FILE} 829 if ! [ -r "${WORKDIR}/files/${HASH}.gz" ]; then 830 echo "files/${HASH}.gz not found -- snapshot corrupt." 831 return 1 832 fi 833 case ${FILE} in 834 */) 835 rm -rf ${PORTSDIR}/${FILE} 836 mkdir -p ${PORTSDIR}/${FILE} 837 tar -xzf ${WORKDIR}/files/${HASH}.gz \ 838 -C ${PORTSDIR}/${FILE} 839 ;; 840 *) 841 rm -f ${PORTSDIR}/${FILE} 842 tar -xzf ${WORKDIR}/files/${HASH}.gz \ 843 -C ${PORTSDIR} ${FILE} 844 ;; 845 esac 846 done; then 847 return 1 848 fi 849 if [ ! -z "${EXTRACTPATH}" ]; then 850 return 0; 851 fi 852 853 extract_metadata 854 extract_indices 855} 856 857# Do the actual work involved in "update" 858update_run() { 859 if ! [ -z "${INDEXONLY}" ]; then 860 extract_indices >/dev/null || return 1 861 return 0 862 fi 863 864 if sort ${WORKDIR}/INDEX | 865 cmp -s ${PORTSDIR}/.portsnap.INDEX -; then 866 echo "Ports tree is already up to date." 867 return 0 868 fi 869 870# If we are REFUSEing to touch certain directories, don't remove files 871# from those directories (even if they are out of date) 872 echo -n "Removing old files and directories... " 873 if ! [ -z "${REFUSE}" ]; then 874 sort ${WORKDIR}/INDEX | 875 comm -23 ${PORTSDIR}/.portsnap.INDEX - | cut -f 1 -d '|' | 876 grep -vE "${REFUSE}" | 877 lam -s "${PORTSDIR}/" - | xargs rm -rf 878 else 879 sort ${WORKDIR}/INDEX | 880 comm -23 ${PORTSDIR}/.portsnap.INDEX - | cut -f 1 -d '|' | 881 lam -s "${PORTSDIR}/" - | xargs rm -rf 882 fi 883 echo "done." 884 885# Install new files 886 echo "Extracting new files:" 887 if ! 888 if ! [ -z "${REFUSE}" ]; then 889 grep -vE "${REFUSE}" ${WORKDIR}/INDEX | sort 890 else 891 sort ${WORKDIR}/INDEX 892 fi | 893 comm -13 ${PORTSDIR}/.portsnap.INDEX - | 894 while read LINE; do 895 FILE=`echo ${LINE} | cut -f 1 -d '|'` 896 HASH=`echo ${LINE} | cut -f 2 -d '|'` 897 echo ${PORTSDIR}/${FILE} 898 if ! [ -r "${WORKDIR}/files/${HASH}.gz" ]; then 899 echo "files/${HASH}.gz not found -- snapshot corrupt." 900 return 1 901 fi 902 case ${FILE} in 903 */) 904 mkdir -p ${PORTSDIR}/${FILE} 905 tar -xzf ${WORKDIR}/files/${HASH}.gz \ 906 -C ${PORTSDIR}/${FILE} 907 ;; 908 *) 909 tar -xzf ${WORKDIR}/files/${HASH}.gz \ 910 -C ${PORTSDIR} ${FILE} 911 ;; 912 esac 913 done; then 914 return 1 915 fi 916 917 extract_metadata 918 extract_indices 919} 920 921#### Main functions -- call parameter-handling and core functions 922 923# Using the command line, configuration file, and defaults, 924# set all the parameters which are needed later. 925get_params() { 926 init_params 927 parse_cmdline $@ 928 sanity_conffile 929 default_conffile 930 parse_conffile 931 default_params 932} 933 934# Fetch command. Make sure that we're being called 935# interactively, then run fetch_check_params and fetch_run 936cmd_fetch() { 937 if [ ! -t 0 ]; then 938 echo -n "`basename $0` fetch should not " 939 echo "be run non-interactively." 940 echo "Run `basename $0` cron instead." 941 exit 1 942 fi 943 fetch_check_params 944 fetch_run || exit 1 945} 946 947# Cron command. Make sure the parameters are sensible; wait 948# rand(3600) seconds; then fetch updates. While fetching updates, 949# send output to a temporary file; only print that file if the 950# fetching failed. 951cmd_cron() { 952 fetch_check_params 953 sleep `jot -r 1 0 3600` 954 955 TMPFILE=`mktemp /tmp/portsnap.XXXXXX` || exit 1 956 if ! fetch_run >> ${TMPFILE}; then 957 cat ${TMPFILE} 958 rm ${TMPFILE} 959 exit 1 960 fi 961 962 rm ${TMPFILE} 963} 964 965# Extract command. Make sure the parameters are sensible, 966# then extract the ports tree (or part thereof). 967cmd_extract() { 968 extract_check_params 969 extract_run || exit 1 970} 971 972# Update command. Make sure the parameters are sensible, 973# then update the ports tree. 974cmd_update() { 975 update_check_params 976 update_run || exit 1 977} 978 979#### Entry point 980 981# Make sure we find utilities from the base system 982export PATH=/sbin:/bin:/usr/sbin:/usr/bin:${PATH} 983 984get_params $@ 985for COMMAND in ${COMMANDS}; do 986 cmd_${COMMAND} 987done 988