update_copyrights revision 4e71e9b6c86d4d437c1beb4070861a77464f98e6
#!/usr/local/bin/perl -w
#
# Copyright (C) 1998-2001 Internet Software Consortium.
#
# Permission to use, copy, modify, and distribute this software for any
# purpose with or without fee is hereby granted, provided that the above
# copyright notice and this permission notice appear in all copies.
#
# THE SOFTWARE IS PROVIDED "AS IS" AND INTERNET SOFTWARE CONSORTIUM
# DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL
# IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL
# INTERNET SOFTWARE CONSORTIUM BE LIABLE FOR ANY SPECIAL, DIRECT,
# INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING
# FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT,
# NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION
# WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
# $Id: update_copyrights,v 1.26 2001/07/30 23:45:03 gson Exp $
require 5.002;
# Map copyright owners to the files containing copyright messages.
# The first line of the copyright message is not in the file;
# it is constructed by this script.
my %owner2filename = (
"" => "util/COPYRIGHT",
"NAI" => "util/COPYRIGHT.NAI",
"NOM" => "util/COPYRIGHT.NOM",
"BSDI" => "util/COPYRIGHT.BSDI",
"BRIEF" => "util/COPYRIGHT.BRIEF",
"PORTION" => "util/COPYRIGHT.PORTION",
);
# Map each copyright owner name to a reference to an array containing
# the lines of the copyright message.
my %owner2text = ();
my $keyword_pat = '\$(Id|Revision):.*\$';
foreach $owner (keys %owner2filename) {
my $f = $owner2filename{$owner};
open(COPYRIGHT, "<$f") || die "can't open $f: $!";
@copyright_text = <COPYRIGHT>;
close(COPYRIGHT);
$owner2text{$owner} = [ @copyright_text ];
}
while (<>) {
($file, $typeandowner, $years_list) = split(/\s+/);
@years = split(/,/, $years_list);
if ( ! -f $file ) {
print "$file: missing\n";
next;
}
my ($type, $owner) = split(/\./, $typeandowner);
$owner = "" if !defined $owner;
$textp = $owner2text{$owner};
if (!defined $textp) {
print "$file: unknown copyright owner $owner\n";
next;
}
next if $type eq "X" or $type eq "BAT";
$before_copyright = "";
$c_comment = 0;
$shell_comment = 0;
$m4_comment = 0;
$sgml_comment = 0;
$zone_comment = 0;
$man_comment = 0;
$start_comment = "";
$end_comment = "";
$first = "";
if ($type =~ /^(C|YACC|CONF-C)$/) {
$c_comment = 1;
$start_comment = "/*\n";
$prefix = " * ";
$end_comment = " */\n";
} elsif ($type =~ /^(SH|PERL|TCL|MAKE|CONF-SH)$/) {
$shell_comment = 1;
$prefix = "# ";
} elsif ($type eq "ZONE") {
$zone_comment = 1;
$prefix = "; ";
} elsif ($type eq "MAN") {
$man_comment = 1;
$prefix = ".\\\" ";
} elsif ($type eq "M4") {
$m4_comment = 1;
$prefix = "dnl ";
} elsif ($type eq "HTML" || $type eq "SGML") {
$sgml_comment = 1;
$start_comment = "<!--\n";
$prefix = " - ";
$end_comment = "-->\n";
} elsif ($type eq "TXT") {
$prefix = "";
} else {
print "$file: type '$type' not supported yet; skipping\n";
next;
}
($nonspaceprefix = $prefix) =~ s/\s+$//;
open(SOURCE, "<$file") || die "can't open $file: $!";
$_ = <SOURCE>;
if ($type eq "YACC") {
unless ($_ eq "%{\n") {
print "$file: unexpected yacc file start ",
"(expected \"%{\\n\")\n";
close(SOURCE);
next;
}
$before_copyright = "$_";
$_ = <SOURCE>;
}
if ($c_comment && /^\/\*/) {
$_ = <SOURCE>;
if ($_ !~ /[Cc]opyright/) {
print "$file: non-copyright comment\n";
close(SOURCE);
next;
}
if ($_ !~ /\*\//) {
while (<SOURCE>) {
last if $_ =~ /\*\//;
}
}
} elsif ($shell_comment) {
if (/^\#\!/) {
$before_copyright = "$_#\n";
$_ = <SOURCE>;
$_ = <SOURCE> if $_ eq "#\n";
}
if (/^\#/) {
if ($_ !~ /[Cc]opyright/) {
print "$file: non-copyright comment\n";
close(SOURCE);
next;
}
while (<SOURCE>) {
if ($_ !~ /^\#/) {
$first = $_;
last;
}
}
} else {
$first = $_;
}
} elsif (($m4_comment || $zone_comment || $man_comment) &&
/^\Q$nonspaceprefix\E/) {
while (/^\Q$nonspaceprefix\E\s*$/) {
$_ = <SOURCE>;
}
if ($_ !~ /[Cc]opyright/) {
print "$file: non-copyright comment\n";
close(SOURCE);
next;
}
while (<SOURCE>) {
if ($_ !~ /^\Q$nonspaceprefix\E/ ||
$_ =~ /$keyword_pat/) {
$first = $_;
last;
}
}
} elsif ($sgml_comment) {
if (/^<!DOCTYPE/) {
$before_copyright = $_;
$_ = <SOURCE>;
}
if (/^<!/) {
$_ = <SOURCE> if $_ eq "<!--\n";
if ($_ !~ /[Cc]opyright/) {
print "$file: non-copyright comment\n";
close(SOURCE);
next;
}
while (defined($_)) {
last if s/.*-->//;
$_ = <SOURCE>;
}
print "$file: unterminated comment\n"
unless defined($_);
if ($_ ne "\n") {
$first = $_;
} else {
$first = <SOURCE>;
}
} else {
$first = $_;
}
} elsif ($type eq "TXT") {
if ($_ =~ /[Cc]opyright/) {
$/ = ""; # paragraph at a time
while (<SOURCE>) {
# Not very maintainable, but ok enough for now.
last unless
/See COPYRIGHT in the source root/ ||
/Permission to use, copy, modify, and / ||
/THE SOFTWARE IS PROVIDED "AS IS" AND /;
}
$/ = "\n";
}
$first = $_;
} else {
$first = $_;
}
$first = "" if ! defined($first);
open(TARGET, ">$file.new") || die "can't open $file.new: $!";
print TARGET $before_copyright if $before_copyright;
print TARGET $start_comment if $start_comment;
$years = "";
$last_year = 0;
$anchor_year = 0;
foreach $year (@years) {
if ($last_year != 0 && $year == $last_year + 1) {
if ($year > $anchor_year + 1) {
substr($years, $anchor_end) = "-$year";
} else {
$years .= ", $year";
}
} else {
$years .= $last_year == 0 ? "$year" : ", $year";
if ($anchor_year != 0) {
print "$file: noncontiguous year: ",
"$year != $last_year + 1\n";
}
$anchor_year = $year;
$anchor_end = length($years);
}
$last_year = $year;
}
($firstline, $secondline, @otherlines) = @$textp;
$firstline =~ s/\@YEARS\@/$years/;
$secondline =~ s/\@YEARS\@/$years/;
print TARGET "$prefix$firstline";
print TARGET $secondline =~ /^$/ ? $nonspaceprefix : $prefix;
print TARGET "$secondline";
foreach $_ (@otherlines) {
print TARGET (/^$/ ? $nonspaceprefix : $prefix);
print TARGET "$_";
}
print TARGET $end_comment if $end_comment;
if ($first eq "") {
$first = <SOURCE>;
}
if (defined($first)) {
if ($type eq 'MAN') {
print TARGET "$nonspaceprefix\n";
} else {
print TARGET "\n";
}
undef $/;
$_ = <SOURCE>;
$/ = "\n";
my ($start, $end);
if ($start_comment ne "") {
($start = $start_comment) =~ s/\s*\n/ /;
($end = $end_comment) =~ s/^\s*(.*)\n/ $1\n/;
} elsif ($prefix ne "") {
($start = $prefix) =~ s/\s*\n//;
$end = "\n";
} else {
$start = "";
$end = "\n";
}
if ($first !~ /$keyword_pat/ && $_ !~ /$keyword_pat/) {
print TARGET "$start\$";
print TARGET "Id: ";
print TARGET "\$$end\n";
}
print TARGET $first if $first !~ /^\s*$/;
print TARGET $_;
}
close(TARGET);
close(SOURCE);
$mode = (stat $file)[2]&511;
chmod $mode, "$file.new";
if (system("cmp -s $file.new $file") == 0) {
unlink("$file.new");
} else {
rename("$file.new", "$file")
or die "rename($file.new, $file): $!";
}
}