5 # This script will get statistical data on newgroup usage
8 # It is part of the NewsStats package.
10 # Copyright (c) 2010 Thomas Hochstein <thh@inter.net>
12 # It can be redistributed and/or modified under the same terms under
13 # which Perl itself is published.
16 our $VERSION = "0.01";
18 push(@INC, dirname($0));
22 use NewsStats qw(:DEFAULT :TimePeriods :Output :SQLHelper);
26 ################################# Main program #################################
28 ### read commandline options
29 my %Options = &ReadOptions('m:p:n:o:t:l:b:iscqdg:');
31 ### read configuration
32 my %Conf = %{ReadConfig('newsstats.conf')};
34 ### override configuration via commandline options
36 $ConfOverride{'DBTableGrps'} = $Options{'g'} if $Options{'g'};
37 &OverrideConfig(\%Conf,\%ConfOverride);
39 ### check for incompatible command line options
40 # you can't mix '-t', '-b' and '-l'
41 # -b/-l take preference over -t, and -b takes preference over -l
42 if ($Options{'b'} or $Options{'l'}) {
45 warn ("$MySelf: W: You cannot combine thresholds (-t) and top lists (-b) or levels (-l). Threshold '-t $Options{'t'}' was ignored.\n");
48 if ($Options{'b'} and $Options{'l'}) {
50 warn ("$MySelf: W: You cannot combine top lists (-b) and levels (-l). Level '-l $Options{'l'}' was ignored.\n");
53 # -q/-d don't work with -b or -l
54 warn ("$MySelf: W: Sorting by number of postings (-q) ignored due to top list mode (-b) / levels (-l).\n") if $Options{'q'};
55 warn ("$MySelf: W: Reverse sorting (-d) ignored due to top list mode (-b) / levels (-l).\n") if $Options{'d'};
59 # default output type to 'dump'
60 $Options{'o'} = 'dump' if !$Options{'o'};
61 # fail if more than one newsgroup is combined with 'dumpgroup' type
62 die ("$MySelf: E: You cannot combine newsgroup lists (-n) with more than one group with '-o dumpgroup'!\n") if ($Options{'o'} eq 'dumpgroup' and defined($Options{'n'}) and $Options{'n'} =~ /:|\*/);
63 # accept 'dumpgroup' only with -n
64 if ($Options{'o'} eq 'dumpgroup' and !defined($Options{'n'})) {
65 $Options{'o'} = 'dump';
66 warn ("$MySelf: W: You must submit exactly one newsgroup ('-n news.group') for '-o dumpgroup'. Output type was set to 'dump'.\n");
68 # set output type to 'pretty' for -l
70 $Options{'o'} = 'pretty';
71 warn ("$MySelf: W: Output type forced to '-o pretty' due to usage of '-l'.\n");
75 my ($StartMonth,$EndMonth) = &GetTimePeriod($Options{'m'},$Options{'p'});
76 # if time period is more than one month: set output type to '-o pretty' or '-o dumpgroup'
77 if ($Options{'o'} eq 'dump' and $Options{'p'}) {
78 if (defined($Options{'n'}) and $Options{'n'} !~ /:|\*/) {
79 warn ("$MySelf: W: You cannot combine time periods (-p) with '-o dump', changing output type to '-o dumpgroup'.\n");
80 $Options{'o'} = 'dumpgroup';
82 warn ("$MySelf: W: You cannot combine time periods (-p) with '-o dump', changing output type to '-o pretty'.\n");
83 $Options{'o'} = 'pretty';
88 my $DBHandle = InitDB(\%Conf,1);
91 # get list of newsgroups (-n)
92 my ($QueryGroupList,$QueryThreshold,@GroupList,@Params);
93 my $Newsgroups = $Options{'n'};
95 # explode list of newsgroups for WHERE clause
96 ($QueryGroupList,@GroupList) = &SQLGroupList($Newsgroups);
98 # set to dummy value (always true)
103 if (defined($Options{'t'})) {
105 # -i: list groups below threshold
106 $QueryThreshold .= ' postings < ?';
108 # default: list groups above threshold
109 $QueryThreshold .= ' postings > ?';
111 # push threshold to Params
112 push @Params,$Options{'t'};
114 # set to dummy value (always true)
118 # construct WHERE clause
119 # $QueryGroupList is "list of newsgroup" (or 1),
120 # $QueryThreshold is threshold definition (or 1),
121 # &SQLHierarchies() takes care of the exclusion of hierarchy levels (.ALL)
122 # according to setting of -s
123 my $WhereClause = sprintf('month BETWEEN ? AND ? AND %s AND %s %s',$QueryGroupList,$QueryThreshold,&SQLHierarchies($Options{'s'}));
125 # get length of longest newsgroup delivered by query for formatting purposes
127 my $MaxLength = &GetMaxLenght($DBHandle,$Conf{'DBTableGrps'},'newsgroup',$WhereClause,$StartMonth,$EndMonth,(@GroupList,@Params));
129 my ($OrderClause,$DBQuery);
130 # -b (best of / top list) defined?
131 if (!defined($Options{'b'}) and !defined($Options{'l'})) {
132 # default: neither -b nor -l
133 # set ordering (ORDER BY) to "newsgroups" or "postings", "ASC" or "DESC"
134 # according to -q and -d
135 $OrderClause = 'newsgroup';
136 $OrderClause = 'postings' if $Options{'q'};
137 $OrderClause .= ' DESC' if $Options{'d'};
138 # prepare query: get number of postings per group from groups table for given months and newsgroups
139 $DBQuery = $DBHandle->prepare(sprintf("SELECT month,newsgroup,postings FROM %s.%s WHERE %s ORDER BY month,%s",$Conf{'DBDatabase'},$Conf{'DBTableGrps'},$WhereClause,$OrderClause));
140 } elsif ($Options{'b'}) {
141 # -b is set (then -l can't be!)
142 # set sorting order (-i): top or flop list?
144 $OrderClause = 'postings';
146 $OrderClause = 'postings DESC';
148 # set -b to 10 if < 1 (Top 10)
149 $Options{'b'} = 10 if $Options{'b'} !~ /^\d*$/ or $Options{'b'} < 1;
150 # push LIMIT to Params
151 push @Params,$Options{'b'};
152 # prepare query: get sum of postings per group from groups table for given months and newsgroups with LIMIT
153 $DBQuery = $DBHandle->prepare(sprintf("SELECT newsgroup,SUM(postings) AS postings FROM %s.%s WHERE %s GROUP BY newsgroup ORDER BY %s,newsgroup LIMIT ?",$Conf{'DBDatabase'},$Conf{'DBTableGrps'},$WhereClause,$OrderClause));
155 # -l must be set now, as all other cases have been taken care of
156 # which kind of level (-i): more than -l x or less than -l x?
163 # prepare and execute query: get list of newsgroups meeting level condition
164 $DBQuery = $DBHandle->prepare(sprintf("SELECT newsgroup FROM %s.%s WHERE %s GROUP BY newsgroup HAVING MAX(postings) %s ?",$Conf{'DBDatabase'},$Conf{'DBTableGrps'},$WhereClause,$Level));
165 $DBQuery->execute($StartMonth,$EndMonth,@GroupList,$Options{'l'})
166 or die sprintf("$MySelf: E: Can't get groups data for %s to %s from %s.%s: %s\n",$StartMonth,$EndMonth,$Conf{'DBDatabase'},$Conf{'DBTableGrps'},$DBI::errstr);
167 # add newsgroups to a comma-seperated list ready for IN(...) query
169 while (my ($Newsgroup) = $DBQuery->fetchrow_array) {
170 $GroupList .= ',' if (defined($GroupList) and $GroupList ne '');
171 $GroupList .= "'$Newsgroup'";
173 $DBQuery = $DBHandle->prepare(sprintf("SELECT month,newsgroup,postings FROM %s.%s WHERE newsgroup IN (%s) AND %s ORDER BY newsgroup,month",$Conf{'DBDatabase'},$Conf{'DBTableGrps'},$GroupList,$WhereClause));
177 $DBQuery->execute($StartMonth,$EndMonth,@GroupList,@Params)
178 or die sprintf("$MySelf: E: Can't get groups data for %s to %s from %s.%s: %s\n",$StartMonth,$EndMonth,$Conf{'DBDatabase'},$Conf{'DBTableGrps'},$DBI::errstr);
181 # print caption (-c) with time period if -m or -p is set
182 # FIXME - month or period should handled differently
183 printf ("----- Report from %s to %s\n",$StartMonth,$EndMonth) if $Options{'c'} and ($Options{'m'} or $Options{'p'});
184 # print caption (-c) with newsgroup list if -n is set
185 printf ("----- Newsgroups: %s\n",join(',',split(/:/,$Newsgroups))) if $Options{'c'} and $Options{'n'};
186 # print caption (-c) with threshold if -t is set, taking -i in account
187 printf ("----- Threshold: %s %u\n",$Options{'i'} ? '<' : '>',$Options{'t'}) if $Options{'c'} and $Options{'t'};
188 if (!defined($Options{'b'}) and !defined($Options{'l'})) {
189 # default: neither -b nor -l
190 &OutputData($Options{'o'},$DBQuery,$MaxLength);
191 } elsif ($Options{'b'}) {
192 # -b is set (then -l can't be!)
193 # we have to read in the query results ourselves, as they do not have standard layout
194 while (my ($Newsgroup,$Postings) = $DBQuery->fetchrow_array) {
195 # we just assign "top x" or "bottom x" instead of a month for the caption
197 print &FormatOutput($Options{'o'}, ($Options{'i'} ? 'Bottom ' : 'Top ').$Options{'b'}, $Newsgroup, $Postings, $MaxLength);
200 # -l must be set now, as all other cases have been taken care of
201 # we have to read in the query results ourselves, as they do not have standard layout
202 while (my ($Month,$Newsgroup,$Postings) = $DBQuery->fetchrow_array) {
203 # we just switch $Newsgroups and $Month for output generation
205 print &FormatOutput($Options{'o'}, $Newsgroup, $Month, $Postings, 7);
210 $DBHandle->disconnect;
214 ################################ Documentation #################################
218 groupstats - create reports on newsgroup usage
222 B<groupstats> [B<-Vhiscqd>] [B<-m> I<YYYY-MM>] [B<-p> I<YYYY-MM:YYYY-MM>] [B<-n> I<newsgroup(s)>] [B<-t> I<threshold>] [B<-l> I<level>] [B<-b> I<number>] [B<-o> I<output type>] [B<-g> I<database table>]
226 See doc/README: Perl 5.8.x itself and the following modules from CPAN:
242 This script create reports on newsgroup usage (number of postings per
243 group per month) taken from result tables created by
246 The time period to act on defaults to last month; you can assign
247 another month via the B<-m> switch or a time period via the B<-p>
248 switch; the latter takes preference.
250 B<groupstats> will process all newsgroups by default; you can limit
251 that to only some newsgroups by supplying a list of those groups via
252 B<-n> (see below). You can include hierarchy levels in the output by
253 adding the B<-s> switch (see below).
255 Furthermore you can set a threshold via B<-t> so that only newsgroups
256 with more postings per month will be included in the report. You can
257 invert that by the B<-i> switch so only newsgroups with less than
258 I<threshold> postings per month will be included.
260 You can sort the output by number of postings per month instead of the
261 default (alphabetical list of newsgroups) by using B<-q>; you can
262 reverse the sorting order (from highest to lowest or in reversed
263 alphabetical order) by using B<-d>.
265 Furthermore, you can create a list of newsgroups that had consistently
266 more (or less) than x postings per month during the whole report
267 period by using B<-l> (together with B<i> as needed).
269 Last but not least you can create a "best of" list of the top x
270 newsgroups via B<-b> (or a "worst of" list by adding B<i>).
272 By default, B<groupstats> will dump a very simple alphabetical list of
273 newsgroups, one per line, followed by the number of postings in that
274 month. This output format of course cannot sensibly be combined with
275 time periods, so you can set the output format by using B<-o> (see
276 below). Captions can be added by setting the B<-c> switch.
280 F<groupstats.pl> will read its configuration from F<newsstats.conf>
281 which should be present in the same directory via Config::Auto.
283 See doc/INSTALL for an overview of possible configuration options.
285 You can override configuration options via the B<-g> switch.
291 =item B<-V> (version)
293 Print out version and copyright information on B<yapfaq> and exit.
297 Print this man page and exit.
299 =item B<-m> I<YYYY-MM> (month)
301 Set processing period to a month in YYYY-MM format. Ignored if B<-p>
304 =item B<-p> I<YYYY-MM:YYYY-MM> (period)
306 Set processing period to a time period between two month, each in
307 YYYY-MM format, separated by a colon. Overrides B<-m>.
309 =item B<-n> I<newsgroup(s)> (newsgroups)
311 Limit processing to a certain set of newsgroups. I<newsgroup(s)> can
312 be a single newsgroup name (de.alt.test), a newsgroup hierarchy
313 (de.alt.*) or a list of either of these, separated by colons, for
316 de.test:de.alt.test:de.newusers.*
318 =item B<-t> I<threshold> (threshold)
320 Only include newsgroups with more than I<threshold> postings per
321 month. Can be inverted by the B<-i> switch so that only newsgroups
322 with less than I<threshold> postings will be included.
324 This setting will be ignored if B<-l> or B<-b> is set.
326 =item B<-l> I<level> (level)
328 Only include newsgroups with more than I<level> postings per
329 month, every month during the whole reporting period. Can be inverted
330 by the B<-i> switch so that only newsgroups with less than I<level>
331 postings every single month will be included. Output will be ordered
332 by newsgroup name, followed by month.
334 This setting will be ignored if B<-b> is set. Overrides B<-t> and
335 can't be used together with B<-q> or B<-d>.
337 =item B<-b> I<n> (best of)
339 Create a list of the I<n> newsgroups with the most postings over the
340 whole reporting period. Can be inverted by the B<-i> switch so that a
341 list of the I<n> newsgroups with the least postings over the whole
342 period is generated. Output will be ordered by sum of postings.
344 Overrides B<-t> and B<-l> and can't be used together with B<-q> or
345 B<-d>. Output format is set to I<pretty> (see below).
349 Used in conjunction with B<-t>, B<-l> or B<-b> to set a lower
350 threshold or level or generate a "bottom list" instead of a top list.
352 =item B<-s> (sum per hierarchy level)
354 Include "virtual" groups for every hierarchy level in output, for
361 See the B<gatherstats> man page for details.
363 =item B<-o> I<output type> (output format)
365 Set output format. Default is I<dump>, consisting of an alphabetical
366 list of newsgroups, each on a new line, followed by the number of
367 postings in that month. This default format can't be used with time
368 periods of more than one month.
370 I<list> format is like I<dump>, but will print the month in front of
373 I<dumpgroup> format can only be use with a group list (see B<-n>) of
374 exactly one newsgroup and is like I<dump>, but will output months,
375 followed by the number of postings.
377 If you don't need easily parsable output, you'll mostly use I<pretty>
378 format, which will print a header for each new month and try to align
379 newsgroup names and posting counts. Usage of B<-b> will force this
382 =item B<-c> (captions)
384 Add captions to output (reporting period, newsgroups list, threshold).
386 =item B<-q> (quantity of postings)
388 Sort by number of postings instead of by newsgroup names.
390 Cannot be used with B<-l> or B<-b>.
392 =item B<-d> (descending)
394 Change sort order to descending.
396 Cannot be used with B<-l> or B<-b>.
398 =item B<-g> I<table> (postings per group table)
400 Override I<DBTableGrps> from F<newsstats.conf>.
410 Show number of postings per group for lasth month in I<dump> format:
414 Show that report for January of 2010 and de.alt.* plus de.test,
415 including display of hierarchy levels:
417 groupstats -m 2010-01 -n de.alt.*:de.test -s
419 Show that report for the year of 2010 in I<pretty> format:
421 groupstats -p 2010-01:2010-12 -o pretty
423 Only show newsgroups with less than 30 postings last month, ordered
424 by number of postings, descending, in I<pretty> format:
426 groupstats -iqdt 30 -o pretty
428 Show top 10 for the first half-year of of 2010 in I<pretty> format:
430 groupstats -p 2010-01:2010-06 -b 10 -o pretty
432 Report all groups that had less than 30 postings every singele month
433 in the year of 2010 (I<pretty> format is forced)
435 groupstats -p 2010-01:2010-12 -il 30
441 =item F<groupstats.pl>
445 =item F<NewsStats.pm>
447 Library functions for the NewsStats package.
449 =item F<newsstats.conf>
451 Runtime configuration file for B<yapfaq>.
457 Please report any bugs or feature requests to the author or use the
458 bug tracker at L<http://bugs.th-h.de/>!
478 This script is part of the B<NewsStats> package.
482 Thomas Hochstein <thh@inter.net>
484 =head1 COPYRIGHT AND LICENSE
486 Copyright (c) 2010 Thomas Hochstein <thh@inter.net>
488 This program is free software; you may redistribute it and/or modify it
489 under the same terms as Perl itself.