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https://github.com/monitoring-plugins/monitoring-plugins.git
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319e308521
The "-X" option (which asks git-notify to not report merge commits) was implemented by setting the "--no-merge" option on each invocation of git-rev-list(1). However, we do not only use git-rev-list(1) to get the list of new commits, but also to check whether the old branch head (or tag) is a parent of the new branch head (or tag). For this latter check, the "--no-merge" option should not be set; otherwise, git-notify would be fooled to believe that the branch has been rewritten if the old head was a merge commit.
676 lines
21 KiB
Perl
Executable file
676 lines
21 KiB
Perl
Executable file
#!/usr/bin/perl -w
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#
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# Tool to send git commit notifications
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#
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# Copyright 2005 Alexandre Julliard
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# Copyright 2009 Nagios Plugins Development Team
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#
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# This program is free software; you can redistribute it and/or
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# modify it under the terms of the GNU General Public License as
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# published by the Free Software Foundation; either version 2 of
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# the License, or (at your option) any later version.
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#
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#
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# This script is meant to be called from .git/hooks/post-receive.
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#
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# Usage: git-notify [options] [--] old-sha1 new-sha1 refname
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#
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# -A Omit the author name from the mail subject
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# -C Show committer in the body if different from the author
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# -c name Send CIA notifications under specified project name
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# -m addr Send mail notifications to specified address
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# -n max Set max number of individual mails to send
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# -r name Set the git repository name
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# -S Enable compatibility with SourceForge's gitweb URLs
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# -s bytes Set the maximum diff size in bytes (-1 for no limit)
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# -T Prefix the mail subject with a [repository name] tag
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# -t file Prevent duplicate notifications by saving state to this file
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# -U mask Set the umask for creating the state file
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# -u url Set the URL to the gitweb browser
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# -i branch If at least one -i is given, report only for specified branches
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# -x branch Exclude changes to the specified branch from reports
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# -X Exclude merge commits
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# -z Try to abbreviate the SHA1 name within gitweb URLs (unsafe)
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#
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use strict;
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use Fcntl ':flock';
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use Encode qw(encode decode);
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use Cwd 'realpath';
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sub git_config($);
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sub get_repos_name();
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# some parameters you may want to change
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# sendmail's pathname
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my $sendmail = "/usr/sbin/sendmail";
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# CIA notification address
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my $cia_address = "cia\@cia.vc";
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# debug mode
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my $debug = 0;
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# configuration parameters
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# omit the author from the mail subject (can be set with the -A option)
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my $omit_author = git_config( "notify.omitauthor" );
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# prefix the mail subject with a [repository name] tag (can be set with the -T option)
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my $emit_repo = git_config( "notify.emitrepository" );
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# show the committer if different from the author (can be set with the -C option)
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my $show_committer = git_config( "notify.showcommitter" );
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# base URL of the gitweb repository browser (can be set with the -u option)
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my $gitweb_url = git_config( "notify.baseurl" );
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# abbreviate the SHA1 name within gitweb URLs (can be set with the -z option)
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my $abbreviate_url = git_config( "notify.shorturls" );
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# don't report merge commits (can be set with the -X option)
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my $ignore_merges = git_config( "notify.ignoremerges" );
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# enable compatibility with SourceForge's gitweb (can be set with the -S option)
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my $sourceforge = git_config( "notify.sourceforge" );
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# default repository name (can be changed with the -r option)
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my $repos_name = git_config( "notify.repository" ) || get_repos_name();
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# max size of diffs in bytes (can be changed with the -s option)
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my $max_diff_size = git_config( "notify.maxdiff" ) || 10000;
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# address for mail notices (can be set with -m option)
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my $commitlist_address = git_config( "notify.mail" );
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# project name for CIA notices (can be set with -c option)
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my $cia_project_name = git_config( "notify.cia" );
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# max number of individual notices before falling back to a single global notice (can be set with -n option)
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my $max_individual_notices = git_config( "notify.maxnotices" ) || 100;
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# branches to include
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my @include_list = split /\s+/, git_config( "notify.include" ) || "";
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# branches to exclude
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my @exclude_list = split /\s+/, git_config( "notify.exclude" ) || "";
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# the state file we use (can be set with the -t option)
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my $state_file = git_config( "notify.statefile" );
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# umask for creating the state file (can be set with -U option)
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my $mode_mask = git_config( "notify.umask" ) || 002;
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sub usage()
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{
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print "Usage: $0 [options] [--] old-sha1 new-sha1 refname\n";
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print " -A Omit the author name from the mail subject\n";
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print " -C Show committer in the body if different from the author\n";
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print " -c name Send CIA notifications under specified project name\n";
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print " -m addr Send mail notifications to specified address\n";
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print " -n max Set max number of individual mails to send\n";
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print " -r name Set the git repository name\n";
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print " -S Enable compatibility with SourceForge's gitweb URLs\n";
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print " -s bytes Set the maximum diff size in bytes (-1 for no limit)\n";
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print " -T Prefix the mail subject with a [repository name] tag\n";
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print " -t file Prevent duplicate notifications by saving state to this file\n";
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print " -U mask Set the umask for creating the state file\n";
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print " -u url Set the URL to the gitweb browser\n";
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print " -i branch If at least one -i is given, report only for specified branches\n";
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print " -x branch Exclude changes to the specified branch from reports\n";
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print " -X Exclude merge commits\n";
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print " -z Try to abbreviate the SHA1 name within gitweb URLs (unsafe)\n";
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exit 1;
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}
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sub xml_escape($)
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{
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my $str = shift;
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$str =~ s/&/&/g;
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$str =~ s/</</g;
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$str =~ s/>/>/g;
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my @chars = unpack "U*", $str;
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$str = join "", map { ($_ > 127) ? sprintf "&#%u;", $_ : chr($_); } @chars;
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return $str;
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}
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# execute git-rev-list(1) with the given parameters and return the output
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sub git_rev_list(@)
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{
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my @args = @_;
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my $revlist = [];
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my $pid = open REVLIST, "-|";
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die "Cannot open pipe: $!" if not defined $pid;
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if (!$pid)
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{
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exec "git", "rev-list", "--reverse", @args or die "Cannot execute rev-list: $!";
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}
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while (<REVLIST>)
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{
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chomp;
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unless (grep {$_ eq "--pretty"} @args)
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{
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die "Invalid commit: $_" if not /^[0-9a-f]{40}$/;
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}
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push @$revlist, $_;
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}
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close REVLIST or die $! ? "Cannot execute rev-list: $!" : "rev-list exited with status: $?";
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return $revlist;
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}
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# append the given commit hashes to the state file
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sub save_commits($)
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{
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my $commits = shift;
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open STATE, ">>", $state_file or die "Cannot open $state_file: $!";
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flock STATE, LOCK_EX or die "Cannot lock $state_file";
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print STATE "$_\n" for @$commits;
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flock STATE, LOCK_UN or die "Cannot unlock $state_file";
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close STATE or die "Cannot close $state_file: $!";
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}
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# for the given range, return the new hashes (and append them to the state file)
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sub get_new_commits($$)
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{
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my ($old_sha1, $new_sha1) = @_;
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my ($seen, @args);
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my $newrevs = [];
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@args = ( "^$old_sha1" ) unless $old_sha1 eq '0' x 40;
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push @args, $new_sha1, @exclude_list;
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unshift @args, "--no-merges" if $ignore_merges;
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my $revlist = git_rev_list(@args);
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if (not defined $state_file or not -e $state_file)
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{
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save_commits(git_rev_list("--all", "--full-history")) if defined $state_file;
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return $revlist;
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}
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open STATE, $state_file or die "Cannot open $state_file: $!";
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flock STATE, LOCK_SH or die "Cannot lock $state_file";
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while (<STATE>)
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{
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chomp;
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die "Invalid commit: $_" if not /^[0-9a-f]{40}$/;
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$seen->{$_} = 1;
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}
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flock STATE, LOCK_UN or die "Cannot unlock $state_file";
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close STATE or die "Cannot close $state_file: $!";
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# FIXME: if another git-notify process reads the $state_file at *this*
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# point, that process might generate duplicates of our notifications.
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save_commits($revlist);
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foreach my $commit (@$revlist)
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{
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push @$newrevs, $commit unless $seen->{$commit};
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}
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return $newrevs;
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}
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# truncate the given string if it exceeds the specified number of characters
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sub truncate_str($$)
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{
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my ($str, $max) = @_;
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if (length($str) > $max)
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{
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$str = substr($str, 0, $max);
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$str =~ s/\s+\S+$//;
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$str .= " ...";
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}
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return $str;
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}
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# right-justify the left column of "left: right" elements, omit undefined elements
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sub format_table(@)
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{
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my @lines = @_;
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my @table;
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my $max = 0;
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foreach my $line (@lines)
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{
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next if not defined $line;
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my $pos = index($line, ":");
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$max = $pos if $pos > $max;
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}
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foreach my $line (@lines)
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{
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next if not defined $line;
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my ($left, $right) = split(/: */, $line, 2);
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push @table, (defined $left and defined $right)
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? sprintf("%*s: %s", $max + 1, $left, $right)
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: $line;
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}
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return @table;
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}
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# format an integer date + timezone as string
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# algorithm taken from git's date.c
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sub format_date($$)
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{
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my ($time,$tz) = @_;
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if ($tz < 0)
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{
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my $minutes = (-$tz / 100) * 60 + (-$tz % 100);
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$time -= $minutes * 60;
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}
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else
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{
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my $minutes = ($tz / 100) * 60 + ($tz % 100);
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$time += $minutes * 60;
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}
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return gmtime($time) . sprintf " %+05d", $tz;
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}
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# fetch a parameter from the git config file
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sub git_config($)
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{
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my ($param) = @_;
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open CONFIG, "-|" or exec "git", "config", $param;
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my $ret = <CONFIG>;
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chomp $ret if $ret;
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close CONFIG or $ret = undef;
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return $ret;
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}
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# parse command line options
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sub parse_options()
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{
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while (@ARGV && $ARGV[0] =~ /^-/)
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{
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my $arg = shift @ARGV;
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if ($arg eq '--') { last; }
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elsif ($arg eq '-A') { $omit_author = 1; }
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elsif ($arg eq '-C') { $show_committer = 1; }
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elsif ($arg eq '-c') { $cia_project_name = shift @ARGV; }
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elsif ($arg eq '-m') { $commitlist_address = shift @ARGV; }
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elsif ($arg eq '-n') { $max_individual_notices = shift @ARGV; }
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elsif ($arg eq '-r') { $repos_name = shift @ARGV; }
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elsif ($arg eq '-S') { $sourceforge = 1; }
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elsif ($arg eq '-s') { $max_diff_size = shift @ARGV; }
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elsif ($arg eq '-T') { $emit_repo = 1; }
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elsif ($arg eq '-t') { $state_file = shift @ARGV; }
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elsif ($arg eq '-U') { $mode_mask = shift @ARGV; }
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elsif ($arg eq '-u') { $gitweb_url = shift @ARGV; }
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elsif ($arg eq '-i') { push @include_list, shift @ARGV; }
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elsif ($arg eq '-X') { $ignore_merges = 1; }
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elsif ($arg eq '-x') { push @exclude_list, shift @ARGV; }
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elsif ($arg eq '-z') { $abbreviate_url = 1; }
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elsif ($arg eq '-d') { $debug++; }
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else { usage(); }
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}
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if (@ARGV && $#ARGV != 2) { usage(); }
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@exclude_list = map { "^$_"; } @exclude_list;
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}
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# send an email notification
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sub mail_notification($$$@)
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{
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my ($name, $subject, $content_type, @text) = @_;
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$subject = "[$repos_name] $subject" if ($emit_repo and $name ne $cia_address);
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$subject = encode("MIME-Q",$subject);
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my @header = ("To: $name", "Subject: $subject", "Content-Type: $content_type");
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if ($debug)
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{
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binmode STDOUT, ":utf8";
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print "---------------------\n";
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print join("\n", @header), "\n\n", join("\n", @text), "\n";
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}
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else
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{
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my $pid = open MAIL, "|-";
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return unless defined $pid;
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if (!$pid)
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{
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exec $sendmail, "-t", "-oi", "-oem" or die "Cannot exec $sendmail";
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}
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binmode MAIL, ":utf8";
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print MAIL join("\n", @header), "\n\n", join("\n", @text), "\n";
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close MAIL or warn $! ? "Cannot execute $sendmail: $!" : "$sendmail exited with status: $?";
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}
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}
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# get the default repository name
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sub get_repos_name()
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{
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my $dir = `git rev-parse --git-dir`;
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chomp $dir;
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my $repos = realpath($dir);
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$repos =~ s/(.*?)((\.git\/)?\.git)$/$1/;
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$repos =~ s/(.*)\/([^\/]+)\/?$/$2/;
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return $repos;
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}
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# return the type of the given object
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sub get_object_type($)
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{
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my $obj = shift;
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open TYPE, "-|" or exec "git", "cat-file", "-t", $obj or die "cannot run git-cat-file";
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my $type = <TYPE>;
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chomp $type;
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close TYPE or die $! ? "Cannot execute cat-file: $!" : "cat-file exited with status: $?";
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return $type;
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}
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# extract the information from a commit or tag object and return a hash containing the various fields
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sub get_object_info($)
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{
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my $obj = shift;
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my %info = ();
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my @log = ();
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my $do_log = 0;
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$info{"encoding"} = "utf-8";
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my $type = get_object_type($obj);
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open OBJ, "-|" or exec "git", "cat-file", $type, $obj or die "cannot run git-cat-file";
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while (<OBJ>)
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{
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chomp;
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if ($do_log)
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{
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last if /^-----BEGIN PGP SIGNATURE-----/;
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push @log, $_;
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}
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elsif (/^(author|committer|tagger) ((.*) (<.*>)) (\d+) ([+-]\d+)$/)
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{
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$info{$1} = $2;
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$info{$1 . "_name"} = $3;
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$info{$1 . "_email"} = $4;
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$info{$1 . "_date"} = $5;
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$info{$1 . "_tz"} = $6;
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}
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elsif (/^tag (.+)/)
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{
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$info{"tag"} = $1;
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}
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elsif (/^encoding (.+)/)
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{
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$info{"encoding"} = $1;
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}
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elsif (/^$/) { $do_log = 1; }
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}
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close OBJ or die $! ? "Cannot execute cat-file: $!" : "cat-file exited with status: $?";
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$info{"type"} = $type;
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$info{"log"} = \@log;
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return %info;
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}
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# send a ref change notice to a mailing list
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sub send_ref_notice($$@)
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{
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my ($ref, $action, @notice) = @_;
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my ($reftype, $refname) = ($ref =~ /^refs\/(head|tag)s\/(.+)/);
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$reftype =~ s/^head$/branch/;
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@notice = (format_table(
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"Module: $repos_name",
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($reftype eq "tag" ? "Tag:" : "Branch:") . $refname,
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@notice,
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($action ne "removed" and $gitweb_url)
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? "URL: ${gitweb_url}a=shortlog;h=$ref" : undef),
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"",
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"The $refname $reftype has been $action.");
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mail_notification($commitlist_address, "$refname $reftype $action",
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"text/plain; charset=us-ascii", @notice);
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}
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# send a commit notice to a mailing list
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sub send_commit_notice($$)
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{
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my ($ref,$obj) = @_;
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my %info = get_object_info($obj);
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my @notice = ();
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my ($url,$subject,$obj_string);
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if ($gitweb_url)
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{
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if ($abbreviate_url)
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{
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open REVPARSE, "-|" or exec "git", "rev-parse", "--short", $obj or die "cannot exec git-rev-parse";
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$obj_string = <REVPARSE>;
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chomp $obj_string if defined $obj_string;
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close REVPARSE or die $! ? "Cannot execute rev-parse: $!" : "rev-parse exited with status: $?";
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}
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$obj_string = $obj if not defined $obj_string;
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$url = "${gitweb_url}a=$info{type};h=$obj_string";
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}
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if ($info{"type"} eq "tag")
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{
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push @notice, format_table(
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"Module: $repos_name",
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"Tag: $ref",
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"SHA1: $obj",
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"Tagger:" . $info{"tagger"},
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"Date:" . format_date($info{"tagger_date"},$info{"tagger_tz"}),
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$url ? "URL: $url" : undef),
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"",
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join "\n", @{$info{"log"}};
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$subject = "Tag " . $info{"tag"} . ": ";
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$subject .= $info{"tagger_name"} . ": " unless $omit_author;
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}
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else
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{
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push @notice, format_table(
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"Module: $repos_name",
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"Branch: $ref",
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"Commit: $obj",
|
|
"Author:" . $info{"author"},
|
|
$show_committer && $info{"committer"} ne $info{"author"} ? "Committer:" . $info{"committer"} : undef,
|
|
"Date:" . format_date($info{"author_date"},$info{"author_tz"}),
|
|
$url ? "URL: $url" : undef),
|
|
"",
|
|
@{$info{"log"}},
|
|
"",
|
|
"---",
|
|
"";
|
|
|
|
open STAT, "-|" or exec "git", "diff-tree", "--stat", "-M", "--no-commit-id", $obj or die "cannot exec git-diff-tree";
|
|
push @notice, join("", <STAT>);
|
|
close STAT or die $! ? "Cannot execute diff-tree: $!" : "diff-tree exited with status: $?";
|
|
|
|
open DIFF, "-|" or exec "git", "diff-tree", "-p", "-M", "--no-commit-id", $obj or die "cannot exec git-diff-tree";
|
|
my $diff = join("", <DIFF>);
|
|
close DIFF or die $! ? "Cannot execute diff-tree: $!" : "diff-tree exited with status: $?";
|
|
|
|
if (($max_diff_size == -1) || (length($diff) < $max_diff_size))
|
|
{
|
|
push @notice, $diff;
|
|
}
|
|
else
|
|
{
|
|
push @notice, "Diff: ${gitweb_url}a=commitdiff;h=$obj_string" if $gitweb_url;
|
|
}
|
|
$subject = $info{"author_name"} . ": " unless $omit_author;
|
|
}
|
|
|
|
$subject .= truncate_str(${$info{"log"}}[0],50);
|
|
$_ = decode($info{"encoding"}, $_) for @notice;
|
|
mail_notification($commitlist_address, $subject, "text/plain; charset=UTF-8", @notice);
|
|
}
|
|
|
|
# send a commit notice to the CIA server
|
|
sub send_cia_notice($$)
|
|
{
|
|
my ($ref,$commit) = @_;
|
|
my %info = get_object_info($commit);
|
|
my @cia_text = ();
|
|
|
|
return if $info{"type"} ne "commit";
|
|
|
|
push @cia_text,
|
|
"<message>",
|
|
" <generator>",
|
|
" <name>git-notify script for CIA</name>",
|
|
" </generator>",
|
|
" <source>",
|
|
" <project>" . xml_escape($cia_project_name) . "</project>",
|
|
" <module>" . xml_escape($repos_name) . "</module>",
|
|
" <branch>" . xml_escape($ref). "</branch>",
|
|
" </source>",
|
|
" <body>",
|
|
" <commit>",
|
|
" <revision>" . substr($commit,0,10) . "</revision>",
|
|
" <author>" . xml_escape($info{"author"}) . "</author>",
|
|
" <log>" . xml_escape(join "\n", @{$info{"log"}}) . "</log>",
|
|
" <files>";
|
|
|
|
open COMMIT, "-|" or exec "git", "diff-tree", "--name-status", "-r", "-M", $commit or die "cannot run git-diff-tree";
|
|
while (<COMMIT>)
|
|
{
|
|
chomp;
|
|
if (/^([AMD])\t(.*)$/)
|
|
{
|
|
my ($action, $file) = ($1, $2);
|
|
my %actions = ( "A" => "add", "M" => "modify", "D" => "remove" );
|
|
next unless defined $actions{$action};
|
|
push @cia_text, " <file action=\"$actions{$action}\">" . xml_escape($file) . "</file>";
|
|
}
|
|
elsif (/^R\d+\t(.*)\t(.*)$/)
|
|
{
|
|
my ($old, $new) = ($1, $2);
|
|
push @cia_text, " <file action=\"rename\" to=\"" . xml_escape($new) . "\">" . xml_escape($old) . "</file>";
|
|
}
|
|
}
|
|
close COMMIT or die $! ? "Cannot execute diff-tree: $!" : "diff-tree exited with status: $?";
|
|
|
|
push @cia_text,
|
|
" </files>",
|
|
$gitweb_url ? " <url>" . xml_escape("${gitweb_url}a=commit;h=$commit") . "</url>" : "",
|
|
" </commit>",
|
|
" </body>",
|
|
" <timestamp>" . $info{"author_date"} . "</timestamp>",
|
|
"</message>";
|
|
|
|
mail_notification($cia_address, "DeliverXML", "text/xml", @cia_text);
|
|
}
|
|
|
|
# send a global commit notice when there are too many commits for individual mails
|
|
sub send_global_notice($$$)
|
|
{
|
|
my ($ref, $old_sha1, $new_sha1) = @_;
|
|
my $notice = git_rev_list("--pretty", "^$old_sha1", "$new_sha1", @exclude_list);
|
|
|
|
foreach my $rev (@$notice)
|
|
{
|
|
$rev =~ s/^commit /URL: ${gitweb_url}a=commit;h=/ if $gitweb_url;
|
|
}
|
|
|
|
mail_notification($commitlist_address, "New commits on branch $ref", "text/plain; charset=UTF-8", @$notice);
|
|
}
|
|
|
|
# send all the notices
|
|
sub send_all_notices($$$)
|
|
{
|
|
my ($old_sha1, $new_sha1, $ref) = @_;
|
|
my ($reftype, $refname, $tagtype, $action, @notice);
|
|
|
|
return if ($ref =~ /^refs\/remotes\//
|
|
or (@include_list && !grep {$_ eq $ref} @include_list));
|
|
die "The name \"$ref\" doesn't sound like a local branch or tag"
|
|
if not (($reftype, $refname) = ($ref =~ /^refs\/(head|tag)s\/(.+)/));
|
|
|
|
if ($reftype eq "tag")
|
|
{
|
|
$tagtype = get_object_type($ref) eq "tag" ? "annotated" : "lightweight";
|
|
}
|
|
|
|
if ($new_sha1 eq '0' x 40)
|
|
{
|
|
$action = "removed";
|
|
@notice = ( "Old SHA1: $old_sha1" );
|
|
}
|
|
elsif ($old_sha1 eq '0' x 40)
|
|
{
|
|
if ($reftype eq "tag" and $tagtype eq "annotated")
|
|
{
|
|
send_commit_notice( $refname, $new_sha1 ) if $commitlist_address;
|
|
return;
|
|
}
|
|
$action = "created";
|
|
@notice = ( "SHA1: $new_sha1" );
|
|
}
|
|
elsif ($reftype eq "tag")
|
|
{
|
|
$action = "updated";
|
|
@notice = ( "Old SHA1: $old_sha1", "New SHA1: $new_sha1" );
|
|
}
|
|
elsif (not grep( $_ eq $old_sha1, @{ git_rev_list( $new_sha1, "--full-history" ) } ))
|
|
{
|
|
$action = "rewritten";
|
|
@notice = ( "Old SHA1: $old_sha1", "New SHA1: $new_sha1" );
|
|
}
|
|
|
|
send_ref_notice( $ref, $action, @notice ) if ($commitlist_address and $action);
|
|
|
|
unless ($reftype eq "tag" or $new_sha1 eq '0' x 40)
|
|
{
|
|
my $commits = get_new_commits ( $old_sha1, $new_sha1 );
|
|
|
|
if (@$commits > $max_individual_notices)
|
|
{
|
|
send_global_notice( $refname, $old_sha1, $new_sha1 ) if $commitlist_address;
|
|
}
|
|
elsif (@$commits > 0)
|
|
{
|
|
foreach my $commit (@$commits)
|
|
{
|
|
send_commit_notice( $refname, $commit ) if $commitlist_address;
|
|
send_cia_notice( $refname, $commit ) if $cia_project_name;
|
|
}
|
|
}
|
|
elsif ($commitlist_address)
|
|
{
|
|
@notice = ( "Old SHA1: $old_sha1", "New SHA1: $new_sha1" );
|
|
send_ref_notice( $ref, "modified", @notice );
|
|
}
|
|
}
|
|
}
|
|
|
|
parse_options();
|
|
|
|
umask( $mode_mask );
|
|
|
|
# append repository path to URL
|
|
if ($gitweb_url) {
|
|
$gitweb_url .= $sourceforge ? "/$repos_name;" : "/$repos_name.git/?";
|
|
}
|
|
|
|
if (@ARGV)
|
|
{
|
|
send_all_notices( $ARGV[0], $ARGV[1], $ARGV[2] );
|
|
}
|
|
else # read them from stdin
|
|
{
|
|
while (<>)
|
|
{
|
|
chomp;
|
|
if (/^([0-9a-f]{40}) ([0-9a-f]{40}) (.*)$/) { send_all_notices( $1, $2, $3 ); }
|
|
}
|
|
}
|
|
|
|
exit 0;
|