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#!/usr/bin/perl
#################################################################
# copyright.pl -- update copyright notices throughout the source tree, idempotently.
#
# Copyright (c) 2011-2023, PostgreSQL Global Development Group
#
# src/tools/copyright.pl
#
# FYI, Tie adds a trailing newline on the last line if missing.
#################################################################
use strict;
use warnings;
use File::Find;
use File::Basename;
use Tie::File;
my $pgdg = 'PostgreSQL Global Development Group';
my $cc = 'Copyright \(c\)';
my $ccliteral = 'Copyright (c)';
# year-1900 is what localtime(time) puts in element 5
my $year = 1900 + ${ [ localtime(time) ] }[5];
print "Using current year: $year\n";
find({ wanted => \&wanted, no_chdir => 1 }, '.');
sub wanted
{
# prevent corruption of git indexes by ignoring any .git/
if (basename($_) eq '.git')
{
$File::Find::prune = 1;
return;
}
return if !-f $File::Find::name || -l $File::Find::name;
# skip file names with binary extensions
# How are these updated? bjm 2012-01-02
return if ($_ =~ m/\.(ico|bin|po|key)$/);
my @lines;
tie @lines, "Tie::File", $File::Find::name;
# We process all lines because some files have copyright
# strings embedded in them, e.g. src/bin/psql/help.c
foreach my $line (@lines)
{
# We only care about lines with a copyright notice.
next unless $line =~ m/$cc.*$pgdg/i;
# Skip line if it already matches the current year; if not
# we get $year-$year, e.g. 2012-2012.
next if $line =~ m/$cc $year, $pgdg/i;
# Skip already-updated lines too, to avoid unnecessary
# file updates.
next if $line =~ m/$cc \d{4}-$year, $pgdg/i;
# Apply the update, relying on Tie::File to write the file.
$line =~ s/$cc (\d{4})-\d{4}, $pgdg/$ccliteral $1-$year, $pgdg/i;
$line =~ s/$cc (\d{4}), $pgdg/$ccliteral $1-$year, $pgdg/i;
}
untie @lines;
return;
}
print "Manually update:\n";
print " ./doc/src/sgml/legal.sgml in head and back branches\n";
print " ./COPYRIGHT in back branches\n";
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