1: #!/usr/bin/perl -w
2:
3: use strict;
4:
5: use XML::LibXML;
6: use FileHandle;
7:
8: # MPIWG libraries
9: use lib '/usr/local/mpiwg/archive';
10: use MPIWGStor;
11:
12: # make output unbuffered
13: $|=1;
14:
15:
16: #######################################################
17: # internal parameters
18: #
19:
20: # program version
21: my $version = "0.3.4 (11.8.2009)";
22:
23: # read command line parameters
24: my $args = parseargs;
25:
26: # debug level
27: $debug = (exists $$args{'debug'}) ? ($$args{'debug'}) : 0;
28:
29: # rewrite XML file (necessary for archive date!)
30: my $fix_xml = 1;
31: my $xml_changed = 0;
32: # XML namespace (not really implemented!)
33: my $namespace = "";
34:
35: # archive name (archive-path element, usually == $docdir)
36: my $archname;
37: # archive storage date
38: my $archdate;
39:
40: #######################################################
41: # external programs
42: #
43: my $archprog = "/opt/tivoli/tsm/client/ba/bin/dsmc";
44: if (! -x $archprog) {
45: logger("ABORT", "TSM client program '$archprog' missing!!");
46: exit 1;
47: }
48: my $checkprog = "/usr/local/mpiwg/archive/archivecheck";
49: if (! -x $checkprog) {
50: logger("ABORT", "archive checking program '$checkprog' missing!!");
51: exit 1;
52: }
53: # log file for archiver
54: my $log_file = "/var/tmp/unarchiver.log";
55: if (! open LOG, ">>$log_file") {
56: logger("ABORT", "unable to write log file '$log_file'!!");
57: exit 1;
58: }
59: LOG->autoflush(1);
60:
61: #######################################################
62: # check parameters that were passed to the program
63: #
64: my $docdir = $$args{'path'};
65: if (! $docdir) {
66: print "ABORT: no document directory given!\n";
67: exit 1;
68: }
69: # strip trailing slashes
70: $docdir =~ s/\/$//;
71: if (! -d $docdir) {
72: print "ABORT: document directory \'$docdir\' doesn't exist!\n";
73: exit 1;
74: }
75:
76: my $metafile = "$docdir/index.meta";
77: if (! -f $metafile) {
78: print "ABORT: metadata index file \'$metafile\' doesn't exist!\n";
79: exit 1;
80: }
81:
82: #######################################################
83: # internal variables
84: #
85:
86: # number of errors
87: my $errcnt = 0;
88: # number of warnings
89: my $warncnt = 0;
90:
91: #######################################################
92: # subroutines
93: #
94:
95: # construct document's parent dir
96: sub get_parent {
97: my ($dirname) = @_;
98: my $dirparent = $dirname;
99: $dirparent =~ s!/[^/]+$!!;
100: return $dirparent;
101: }
102:
103:
104: #
105: # $files = read_resource_meta($rootnode)
106: #
107: # checks general resource meta information and reads the list of files
108: #
109: sub read_resource_meta {
110: my ($rootnode) = @_;
111: my %files;
112: #
113: # archive path
114: #
115: # get archive-path
116: $archname = sstrip($rootnode->findvalue('child::archive-path'));
117: if (! $archname) {
118: logger("ABORT", "archive-name element missing!!");
119: exit 1;
120: }
121:
122: #
123: # files
124: #
125: my @filenodes = $rootnode->findnodes('child::file');
126: foreach my $fn (@filenodes) {
127: my $name = sstrip($fn->findvalue('child::name'));
128: my $path = sstrip($fn->findvalue('child::path'));
129: logger("DEBUG", "FILE: ($path)$name");
130: my $f = ($path) ? "$path/$name" : "$name";
131: $files{$f} = [$name];
132: }
133:
134: #
135: # dirs
136: #
137: my @dirnodes = $rootnode->findnodes('child::dir');
138: foreach my $fn (@dirnodes) {
139: my $name = sstrip($fn->findvalue('child::name'));
140: my $path = sstrip($fn->findvalue('child::path'));
141: logger("DEBUG", "DIR: ($path)$name");
142: my $f = ($path) ? "$path/$name" : "$name";
143: $files{$f} = [$name];
144: }
145:
146: #
147: # archive-storage-date
148: #
149: my $archdate = $rootnode->find('child::archive-storage-date');
150: if ($archdate) {
151: logger("INFO", "archive storage date: $archdate");
152: } else {
153: logger("ERROR", "archive storage date missing!");
154: $errcnt++;
155: }
156:
157: #
158: # archive-recall-date
159: #
160: my $recalldatenode = ($rootnode->find('child::archive-recall-date'))->get_node(1);
161: if ($recalldatenode) {
162: print "INFO: archive recall date exists!\n";
163: # delete old date
164: $recalldatenode->removeChildNodes;
165: } else {
166: # create new storage date node
167: $recalldatenode = $rootnode->addNewChild($namespace, "archive-recall-date");
168: # move after archive-path
169: $rootnode->insertAfter($recalldatenode, ($rootnode->find('child::archive-storage-date'))->get_node(1));
170: }
171: $recalldatenode->appendTextNode(scalar localtime);
172: $xml_changed++;
173:
174: return \%files;
175: }
176:
177:
178: #
179: # $num_files = run_retrieve($docdir, $docmount, \%files)
180: #
181: # Runs the retriever program on $docdir and returns the number of unarchived files.
182: # All filenames are put in %files.
183: # $docmount is the mount point of the doc partition in cases when the new mount point
184: # is different.
185: #
186: # Sample output:
187: # (old!) Retrieving 17,234 /mpiwg/archive/data/test/auto_titit_123/pageimg/essen-wind1.jpg [Done]
188: # Retrieving 42,406,326 /mpiwg/archive/data/library/B980G582/raw/00015.tif --> /mpiwg/archive/data/library/B980G582/raw/00015.tif [Done]
189: sub run_retrieve {
190: my ($archdir, $archmount, $files) = @_;
191: my $archparent;
192: if ($archmount eq $archdir) {
193: # no explicit mount point
194: $archparent = get_parent($archdir);
195: } else {
196: # destination dir is mount point
197: $archparent = $archmount;
198: }
199: logger("INFO", "looking for archives in $archmount...");
200:
201: print LOG "START unarchive $version on ", scalar localtime, "\n";
202: my $archcmd = $archprog;
203: $archcmd .= " retrieve -subdir=yes -replace=all -ifnewer";
204: $archcmd .= " -description='$archname'"; # archive name
205: $archcmd .= " '$archmount/'"; # archive mount point
206: $archcmd .= " '$archparent/'"; # destination dir name
207:
208: logger('INFO', "querying TSM server for $archmount, please wait...");
209:
210: my $archcnt = 0;
211: my $numfiles = 0;
212: print LOG "CMD: $archcmd\n";
213: if (open ARCH, "$archcmd 2>&1 |") {
214: while (<ARCH>) {
215: chomp;
216: print LOG "ARCH: $_\n";
217: if (/
218: Retrieving
219: \s+([\d,]+) # size
220: \s+(\S+) # file name
221: \s+-->
222: \s+(\S+) # destination file name
223: \s+\[Done\]
224: /x) {
225: my $size = $1;
226: my $file = $2;
227: $size =~ s/,//g;
228: logger("DEBUG", " RETRIEVE: file '$file'");
229: $archcnt++;
230: if ($$files{$file}) {
231: logger("WARNING", "file $file seems to be archived multiple times.");
232: $warncnt++;
233: }
234: $$files{$file} = [$size];
235: }
236: }
237: $numfiles = (scalar keys %$files);
238: logger("INFO", "$archcnt archives of $numfiles files (in $archmount).");
239: } else {
240: logger("ABORT", "unable to start archive command '$archcmd'!!");
241: exit 1;
242: }
243: return $numfiles;
244: }
245:
246:
247: #
248: # check_files(\%files_to_retrieve, \%retrieved_files)
249: #
250: # compares the list of archived and retrieved files
251: #
252: sub check_files {
253: my ($to_retrieve, $retrieved) = @_;
254:
255: my $nt = scalar keys %$to_retrieve;
256: my $na = scalar keys %$retrieved;
257:
258: foreach my $ft (sort keys %$to_retrieve) {
259: my $fp = "$docdir/$ft";
260: #logger("DEBUG", " fp: $fp");
261: if ($$retrieved{$fp}) {
262: logger("DEBUG", "$ft retrieved OK");
263: $$retrieved{$fp}->[1] = "OK";
264: } else {
265: logger("ERROR", "file entry '$ft' missing from archive!");
266: $errcnt++;
267: }
268: }
269:
270: foreach my $fa (sort keys %$retrieved) {
271: if (! $$retrieved{$fa}->[1]) {
272: my ($fn, $fp) = split_file_path($fa);
273: if ($index_files{$fn}) {
274: logger("DEBUG", "$fa ignored");
275: $na--;
276: } else {
277: logger("WARNING", "$fa retrieved but not in list!");
278: $warncnt++;
279: }
280: }
281: }
282:
283: if ($nt > $na) {
284: logger("WARNING", "less files were retrieved ($na vs. $nt)!");
285: $warncnt++;
286: } elsif ($na > $nt) {
287: logger("WARNING", "more files were retrieved ($na vs. $nt)!");
288: $warncnt++;
289: }
290:
291: }
292:
293:
294:
295: #######################################################
296: # main
297: #
298:
299: logger("INFO", "unarchiver $version");
300:
301: # make shure the right user is running this program
302: my $user = getlogin || getpwuid($<);
303: if (($user)&&($user ne "archive")&&($user ne "root")) {
304: logger("ABORT", "you must be archive or root user to run this program!");
305: exit 1;
306: }
307:
308: # use checkarchive first
309: if (system("$checkprog $docdir >/dev/null") == 0) {
310: logger("INFO", "archive \"$docdir\" check OK");
311: } else {
312: logger("ABORT", "archive \"$docdir\" check failed!!");
313: exit 1;
314: }
315:
316: # read index.meta file
317: my ($document, $rootnode) = read_xml($metafile);
318:
319: # check index file
320: my $archived_files = read_resource_meta($rootnode);
321: my $num_archived_files = scalar keys %$archived_files;
322:
323: # check for .archived file
324: if (-f "$docdir/.archived") {
325: logger("INFO", ".archived file exists.");
326: } else {
327: logger("WARNING", "no .archived file!");
328: $warncnt++;
329: }
330:
331: logger("INFO", "$num_archived_files files to retrieve.");
332:
333: # save current index.meta
334: park_file($metafile);
335:
336: # retrieve
337: my %retrieved_files = ();
338: my $archcnt = 0;
339:
340: if ($docdir =~ /\/mpiwg\/archive\/data\/(.*)/) {
341: # TSM needs two different paths because of historical mount points :-(
342: # try the new one first
343: $archcnt = run_retrieve($docdir, "/mpiwg/archive", \%retrieved_files);
344: if ($archcnt == 0) {
345: # and then the old one
346: $archcnt = run_retrieve($docdir, "/mpiwg/archive/data", \%retrieved_files);
347: }
348: } else {
349: # otherwise we assume that it works
350: $archcnt += run_retrieve($docdir, $docdir, \%retrieved_files);
351: }
352:
353: # restore current index.meta
354: unpark_file($metafile);
355:
356: if ($archcnt == 0) {
357: logger("ABORT", "no files retrieved!!");
358: exit 1;
359: }
360: logger("INFO", "$archcnt files retrieved");
361:
362: # check list of archived files
363: check_files($archived_files, \%retrieved_files);
364:
365: # rewrite index.meta file
366: write_xml($document, $metafile);
367:
368: logger("INFO", "$warncnt warnings");
369: logger("INFO", "$errcnt errors");
370: if ($errcnt == 0) {
371: logger("DONE", "$archcnt archived files retrieved");
372: } else {
373: logger("ABORT", "there were $errcnt errors!!");
374: exit 1;
375: }
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