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Bring over lock and log code from calendar-export, and its license.

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This commit is contained in:
Bradley M. Kuhn 2013-11-30 14:07:55 -05:00
parent 6920a57e53
commit 746bc48850
1 changed files with 84 additions and 1 deletions
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85
calendar-import.plx
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@ -1,9 +1,13 @@
#!/usr/bin/perl -w
# calendar-import.plx -*- Perl -*-
# ====================================================================
# NOTE: Overall license of this file is GPLv3-only, due (in part) to Software
# Freedom Law Center copyrights (see below). Kuhn's personal copyrights are
# licensed GPLv3-or-later.
#
# The sub's "safe_read_from_pipe" and read_from_process are:
# ====================================================================
# The sub's "safe_read_from_pipe" and read_from_process are:
# Copyright (c) 2000-2004 CollabNet. All rights reserved.
#
# This software is licensed as described in the file COPYING, which
@ -48,6 +52,24 @@
# along with this program in a file in the toplevel directory called
# "GPLv3". If not, see <http://www.gnu.org/licenses/>.
# ====================================================================
# The functions DoLog, BinarySearchForTZEntry, PrivatizeMergeAndTZIcalFile,
# BuildTZList, MergeLists, PrivacyFilterICalFiles, and FilterEmacsToICal material
# copyrighted and licensed as below:
# Copyright © 2006 Software Freedom Law Center, Inc.
#
# This software gives you freedom; it is licensed to you under version 3
# of the GNU General Public License.
#
# This software is distributed WITHOUT ANY WARRANTY, without even the
# implied warranties of MERCHANTABILITY and FITNESS FOR A PARTICULAR
# PURPOSE. See the GNU General Public License for further details.
#
# You should have received a copy of the GNU General Public License,
# version 3. If not, see <http://www.gnu.org/licenses/>
use strict;
use warnings;
@ -58,6 +80,67 @@ if (@ARGV != 1) {
exit 1;
}
###############################################################################
my $CALENDAR_LOCK_FILE = "$ENV{HOME}/.emacs-calendar-to-ics-lock";
my $LOCK_CLEANUP_CODE = sub {
return (unlink($CALENDAR_LOCK_FILE) != 1) ?
"Failed unlink of $CALENDAR_LOCK_FILE. Could cause trouble." :
"";
};
###############################################################################
{
my %messageHistory;
sub DoLog ($$$;$) {
my($type, $user, $message, $cleanupCode) = @_;
use Date::Manip;
my $NOW = ParseDate("now");
my $lastTime = $messageHistory{$message};
my $sendIt = 0;
if (not defined $lastTime) {
$sendIt = 1;
} else {
my $err;
my $sinceLast = DateCalc($lastTime,"+ 10 minutes",\$err);
$sendIt = 1 if ($NOW gt $sinceLast);
}
if ($sendIt) {
my $fh = File::Temp->new();
$fh->unlink_on_destroy( 1 );
my $fname = $fh->filename;
print $fh "Calendar Export Failure: $message\n";
$fh->close();
system('/home/bkuhn/bin/myosd', $fname);
unless (-f "$ENV{HOME}/.silent-running") {
open(ESPEAK, "-|", "/usr/bin/espeak", '-p', '45', '-s', '130', '-f', $fname, "--stdout");
open(PAPLAY, "|-", "/usr/bin/paplay");
my $data;
while (read(ESPEAK, $data, 8) == 8) {
print PAPLAY $data;
}
close PAPLAY; close ESPEAK;
}
system('/usr/bin/notify-send', '-u', 'critical', '-t', '300000',
'Failure', "Calendar export failure: $message");
$messageHistory{$message} = $NOW;
}
my $more;
$more = &$cleanupCode if defined $cleanupCode and ref $cleanupCode;
$message .= " $more" if (defined $more and $more !~ /^\s*$/);
croak $message if $type eq "die";
warn $message;
}
sub DieLog ($;$) {
DoLog("die", undef, $_[0], $_[1]);
}
sub WarnLog ($$) {
DoLog("warn", $_[0], $_[1]);
}
}
###############################################################################
# Start a child process safely without using /bin/sh.
sub safe_read_from_pipe
{