0c2f7395fd2c1484aff70b739c0c3d884ea8d2c7
1 #!/usr/bin/perl -w
2 #
3 # Tool to send git commit notifications
4 #
5 # Copyright 2005 Alexandre Julliard
6 #
7 # This program is free software; you can redistribute it and/or
8 # modify it under the terms of the GNU General Public License as
9 # published by the Free Software Foundation; either version 2 of
10 # the License, or (at your option) any later version.
11 #
12 #
13 # This script is meant to be called from .git/hooks/post-receive.
14 #
15 # Usage: git-notify [options] [--] old-sha1 new-sha1 refname
16 #
17 # -c name Send CIA notifications under specified project name
18 # -m addr Send mail notifications to specified address
19 # -n max Set max number of individual mails to send
20 # -r name Set the git repository name
21 # -s bytes Set the maximum diff size in bytes (-1 for no limit)
22 # -u url Set the URL to the gitweb browser
23 # -i branch If at least one -i is given, report only for specified branches
24 # -x branch Exclude changes to the specified branch from reports
25 # -X Exclude merge commits
26 #
28 use strict;
29 use open ':utf8';
30 use Encode 'encode';
31 use Cwd 'realpath';
33 binmode STDIN, ':utf8';
34 binmode STDOUT, ':utf8';
36 sub git_config($);
37 sub get_repos_name();
39 # some parameters you may want to change
41 # set this to something that takes "-s"
42 my $mailer = "/usr/bin/mail";
44 # CIA notification address
45 my $cia_address = "cia\@cia.navi.cx";
47 # debug mode
48 my $debug = 0;
50 # configuration parameters
52 # base URL of the gitweb repository browser (can be set with the -u option)
53 my $gitweb_url = git_config( "notify.baseurl" );
55 # default repository name (can be changed with the -r option)
56 my $repos_name = git_config( "notify.repository" ) || get_repos_name();
58 # max size of diffs in bytes (can be changed with the -s option)
59 my $max_diff_size = git_config( "notify.maxdiff" ) || 10000;
61 # address for mail notices (can be set with -m option)
62 my $commitlist_address = git_config( "notify.mail" );
64 # project name for CIA notices (can be set with -c option)
65 my $cia_project_name = git_config( "notify.cia" );
67 # max number of individual notices before falling back to a single global notice (can be set with -n option)
68 my $max_individual_notices = git_config( "notify.maxnotices" ) || 100;
70 # branches to include
71 my @include_list = split /\s+/, git_config( "notify.include" ) || "";
73 # branches to exclude
74 my @exclude_list = split /\s+/, git_config( "notify.exclude" ) || "";
76 # Extra options to git rev-list
77 my @revlist_options;
79 sub usage()
80 {
81 print "Usage: $0 [options] [--] old-sha1 new-sha1 refname\n";
82 print " -c name Send CIA notifications under specified project name\n";
83 print " -m addr Send mail notifications to specified address\n";
84 print " -n max Set max number of individual mails to send\n";
85 print " -r name Set the git repository name\n";
86 print " -s bytes Set the maximum diff size in bytes (-1 for no limit)\n";
87 print " -u url Set the URL to the gitweb browser\n";
88 print " -i branch If at least one -i is given, report only for specified branches\n";
89 print " -x branch Exclude changes to the specified branch from reports\n";
90 print " -X Exclude merge commits\n";
91 exit 1;
92 }
94 sub xml_escape($)
95 {
96 my $str = shift;
97 $str =~ s/&/&/g;
98 $str =~ s/</</g;
99 $str =~ s/>/>/g;
100 my @chars = unpack "U*", $str;
101 $str = join "", map { ($_ > 127) ? sprintf "&#%u;", $_ : chr($_); } @chars;
102 return $str;
103 }
105 # right-justify the left column of "left: right" elements, omit undefined elements
106 sub format_table(@)
107 {
108 my @lines = @_;
109 my @table;
110 my $max = 0;
112 foreach my $line (@lines)
113 {
114 next if not defined $line;
115 my $pos = index($line, ":");
117 $max = $pos if $pos > $max;
118 }
120 foreach my $line (@lines)
121 {
122 next if not defined $line;
123 my ($left, $right) = split(/: */, $line, 2);
125 push @table, (defined $left and defined $right)
126 ? sprintf("%*s: %s", $max + 1, $left, $right)
127 : $line;
128 }
129 return @table;
130 }
132 # format an integer date + timezone as string
133 # algorithm taken from git's date.c
134 sub format_date($$)
135 {
136 my ($time,$tz) = @_;
138 if ($tz < 0)
139 {
140 my $minutes = (-$tz / 100) * 60 + (-$tz % 100);
141 $time -= $minutes * 60;
142 }
143 else
144 {
145 my $minutes = ($tz / 100) * 60 + ($tz % 100);
146 $time += $minutes * 60;
147 }
148 return gmtime($time) . sprintf " %+05d", $tz;
149 }
151 # fetch a parameter from the git config file
152 sub git_config($)
153 {
154 my ($param) = @_;
156 open CONFIG, "-|" or exec "git", "config", $param;
157 my $ret = <CONFIG>;
158 chomp $ret if $ret;
159 close CONFIG or $ret = undef;
160 return $ret;
161 }
163 # parse command line options
164 sub parse_options()
165 {
166 while (@ARGV && $ARGV[0] =~ /^-/)
167 {
168 my $arg = shift @ARGV;
170 if ($arg eq '--') { last; }
171 elsif ($arg eq '-c') { $cia_project_name = shift @ARGV; }
172 elsif ($arg eq '-m') { $commitlist_address = shift @ARGV; }
173 elsif ($arg eq '-n') { $max_individual_notices = shift @ARGV; }
174 elsif ($arg eq '-r') { $repos_name = shift @ARGV; }
175 elsif ($arg eq '-s') { $max_diff_size = shift @ARGV; }
176 elsif ($arg eq '-u') { $gitweb_url = shift @ARGV; }
177 elsif ($arg eq '-i') { push @include_list, shift @ARGV; }
178 elsif ($arg eq '-x') { push @exclude_list, shift @ARGV; }
179 elsif ($arg eq '-X') { push @revlist_options, "--no-merges"; }
180 elsif ($arg eq '-d') { $debug++; }
181 else { usage(); }
182 }
183 if (@ARGV && $#ARGV != 2) { usage(); }
184 @exclude_list = map { "^$_"; } @exclude_list;
185 }
187 # send an email notification
188 sub mail_notification($$$@)
189 {
190 my ($name, $subject, $content_type, @text) = @_;
191 $subject = encode("MIME-Q",$subject);
192 if ($debug)
193 {
194 print "---------------------\n";
195 print "To: $name\n";
196 print "Subject: $subject\n";
197 print "Content-Type: $content_type\n";
198 print "\n", join("\n", @text), "\n";
199 }
200 else
201 {
202 my $pid = open MAIL, "|-";
203 return unless defined $pid;
204 if (!$pid)
205 {
206 exec $mailer, "-s", $subject, "-a", "Content-Type: $content_type", $name or die "Cannot exec $mailer";
207 }
208 print MAIL join("\n", @text), "\n";
209 close MAIL;
210 }
211 }
213 # get the default repository name
214 sub get_repos_name()
215 {
216 my $dir = `git rev-parse --git-dir`;
217 chomp $dir;
218 my $repos = realpath($dir);
219 $repos =~ s/(.*?)((\.git\/)?\.git)$/$1/;
220 $repos =~ s/(.*)\/([^\/]+)\/?$/$2/;
221 return $repos;
222 }
224 # extract the information from a commit object and return a hash containing the various fields
225 sub get_object_info($)
226 {
227 my $obj = shift;
228 my %info = ();
229 my @log = ();
230 my $do_log = 0;
232 open OBJ, "-|" or exec "git", "cat-file", "commit", $obj or die "cannot run git-cat-file";
233 while (<OBJ>)
234 {
235 chomp;
236 if ($do_log) { push @log, $_; }
237 elsif (/^$/) { $do_log = 1; }
238 elsif (/^(author|committer) ((.*) (<.*>)) (\d+) ([+-]\d+)$/)
239 {
240 $info{$1} = $2;
241 $info{$1 . "_name"} = $3;
242 $info{$1 . "_email"} = $4;
243 $info{$1 . "_date"} = $5;
244 $info{$1 . "_tz"} = $6;
245 }
246 }
247 close OBJ;
249 $info{"log"} = \@log;
250 return %info;
251 }
253 # send a commit notice to a mailing list
254 sub send_commit_notice($$)
255 {
256 my ($ref,$obj) = @_;
257 my %info = get_object_info($obj);
258 my @notice = ();
260 open DIFF, "-|" or exec "git", "diff-tree", "-p", "-M", "--no-commit-id", $obj or die "cannot exec git-diff-tree";
261 my $diff = join("", <DIFF>);
262 close DIFF;
264 return if length($diff) == 0;
266 push @notice, format_table(
267 "Module: $repos_name",
268 "Branch: $ref",
269 "Commit: $obj",
270 $gitweb_url ? "URL: $gitweb_url/?a=commit;h=$obj" : undef),
271 "Author:" . $info{"author"},
272 "Date:" . format_date($info{"author_date"},$info{"author_tz"}),
273 "",
274 @{$info{"log"}},
275 "",
276 "---",
277 "";
279 open STAT, "-|" or exec "git", "diff-tree", "--stat", "-M", "--no-commit-id", $obj or die "cannot exec git-diff-tree";
280 push @notice, join("", <STAT>);
281 close STAT;
283 if (($max_diff_size == -1) || (length($diff) < $max_diff_size))
284 {
285 push @notice, $diff;
286 }
287 else
288 {
289 push @notice, "Diff: $gitweb_url/?a=commitdiff;h=$obj" if $gitweb_url;
290 }
292 mail_notification($commitlist_address,
293 $info{"author_name"} . ": " . ${$info{"log"}}[0],
294 "text/plain; charset=UTF-8", @notice);
295 }
297 # send a commit notice to the CIA server
298 sub send_cia_notice($$)
299 {
300 my ($ref,$commit) = @_;
301 my %info = get_object_info($commit);
302 my @cia_text = ();
304 push @cia_text,
305 "<message>",
306 " <generator>",
307 " <name>git-notify script for CIA</name>",
308 " </generator>",
309 " <source>",
310 " <project>" . xml_escape($cia_project_name) . "</project>",
311 " <module>" . xml_escape($repos_name) . "</module>",
312 " <branch>" . xml_escape($ref). "</branch>",
313 " </source>",
314 " <body>",
315 " <commit>",
316 " <revision>" . substr($commit,0,10) . "</revision>",
317 " <author>" . xml_escape($info{"author"}) . "</author>",
318 " <log>" . xml_escape(join "\n", @{$info{"log"}}) . "</log>",
319 " <files>";
321 open COMMIT, "-|" or exec "git", "diff-tree", "--name-status", "-r", "-M", $commit or die "cannot run git-diff-tree";
322 while (<COMMIT>)
323 {
324 chomp;
325 if (/^([AMD])\t(.*)$/)
326 {
327 my ($action, $file) = ($1, $2);
328 my %actions = ( "A" => "add", "M" => "modify", "D" => "remove" );
329 next unless defined $actions{$action};
330 push @cia_text, " <file action=\"$actions{$action}\">" . xml_escape($file) . "</file>";
331 }
332 elsif (/^R\d+\t(.*)\t(.*)$/)
333 {
334 my ($old, $new) = ($1, $2);
335 push @cia_text, " <file action=\"rename\" to=\"" . xml_escape($new) . "\">" . xml_escape($old) . "</file>";
336 }
337 }
338 close COMMIT;
340 push @cia_text,
341 " </files>",
342 $gitweb_url ? " <url>" . xml_escape("$gitweb_url/?a=commit;h=$commit") . "</url>" : "",
343 " </commit>",
344 " </body>",
345 " <timestamp>" . $info{"author_date"} . "</timestamp>",
346 "</message>";
348 mail_notification($cia_address, "DeliverXML", "text/xml", @cia_text);
349 }
351 # send a global commit notice when there are too many commits for individual mails
352 sub send_global_notice($$$)
353 {
354 my ($ref, $old_sha1, $new_sha1) = @_;
355 my @notice = ();
357 push @revlist_options, "--pretty";
358 open LIST, "-|" or exec "git", "rev-list", @revlist_options, "^$old_sha1", "$new_sha1", @exclude_list or die "cannot exec git-rev-list";
359 while (<LIST>)
360 {
361 chomp;
362 s/^commit /URL: $gitweb_url\/?a=commit;h=/ if $gitweb_url;
363 push @notice, $_;
364 }
365 close LIST;
367 mail_notification($commitlist_address, "New commits on branch $ref", "text/plain; charset=UTF-8", @notice);
368 }
370 # send all the notices
371 sub send_all_notices($$$)
372 {
373 my ($old_sha1, $new_sha1, $ref) = @_;
375 $ref =~ s/^refs\/heads\///;
377 return if (@include_list && !grep {$_ eq $ref} @include_list);
379 if ($old_sha1 eq '0' x 40) # new ref
380 {
381 send_commit_notice( $ref, $new_sha1 ) if $commitlist_address;
382 return;
383 }
385 my @commits = ();
387 open LIST, "-|" or exec "git", "rev-list", @revlist_options, "^$old_sha1", "$new_sha1", @exclude_list or die "cannot exec git-rev-list";
388 while (<LIST>)
389 {
390 chomp;
391 die "invalid commit $_" unless /^[0-9a-f]{40}$/;
392 unshift @commits, $_;
393 }
394 close LIST;
396 if (@commits > $max_individual_notices)
397 {
398 send_global_notice( $ref, $old_sha1, $new_sha1 ) if $commitlist_address;
399 return;
400 }
402 foreach my $commit (@commits)
403 {
404 send_commit_notice( $ref, $commit ) if $commitlist_address;
405 send_cia_notice( $ref, $commit ) if $cia_project_name;
406 }
407 }
409 parse_options();
411 # append repository path to URL
412 $gitweb_url .= "/$repos_name.git" if $gitweb_url;
414 if (@ARGV)
415 {
416 send_all_notices( $ARGV[0], $ARGV[1], $ARGV[2] );
417 }
418 else # read them from stdin
419 {
420 while (<>)
421 {
422 chomp;
423 if (/^([0-9a-f]{40}) ([0-9a-f]{40}) (.*)$/) { send_all_notices( $1, $2, $3 ); }
424 }
425 }
427 exit 0;