bind9/util/update_branches

#!/usr/local/bin/perl -w
#
# Copyright (C) 2005  Internet Systems Consortium, Inc. ("ISC")
#
# 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 ISC DISCLAIMS ALL WARRANTIES WITH
# REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY
# AND FITNESS.  IN NO EVENT SHALL ISC 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_branches,v 1.3 2005/05/16 04:28:59 marka Exp $

%branches = ();
%whom = ();
%comments = ();

!system("cvs", "-d", "/proj/cvs/prod", "update", "doc/private/branches") || die "cannot update doc/private/branches: $!";

#
# load existing content
#
open(BRANCHES, "<doc/private/branches") || die "can't open util/branches: $!";
while (<BRANCHES>) {
	chomp;
	next if (/----------/);
	next if (/Whom/);
	$c = "";
	if (m/\(.*\)/) {
		$c = $_;
		$c =~ s/.*(\(.*\)).*$/$1/;
		s/\(.*\)//;
	}
	next if (/^\s*$/);
	($branch, $status, $who) = split;
	#$status = "new" if (!defined($status));
	$branches{$branch} = $status;
	#$who = "-" if (!defined($who));
	$whom{$branch} = $who;
	$comments{$branch} = $c;
}
close (BRANCHES);

#
# Search repository for new branches.
#
open(FILES, "find /proj/cvs/prod/bind9 -type f -name *,v -print |") || die "can't start find: $!";
while (<FILES>) {
	chomp;
	# print "file: $_\n"; # debug
	# $file = $_; # save for branch debug below.
	open(FILE, "<$_") || die "can't open $_: $!";
	while (<FILE>) {
		chomp;
		next unless m/^symbols$/;	# skip until we find the tags
		while (<FILE>) {
			chomp;
			last if (m/^locks;/);	# we are past the tags
			next unless m/\.0\.\d$/; # skip if not a branch
			s/\s(.*):.*/$1/;	# extract label
			if (!$branches{$_}) {
				$branches{$_} = "new";
				$whom{$_} =  "";
				$comments{$_} =  "";
				# print "branch: $_ $file\n"; # debug
			}
		}
		last;
	}
	close(FILE);
}
close(FILES);

#
# Write out updated version.
#
open(BRANCHES, ">doc/private/newbranches") || die "can't open doc/private/branches: $!";
print BRANCHES "\nBranch\t\t\t\tStatus\tWhom\n";
print BRANCHES "-------------------------------------------------------\n\n";
foreach $key (sort keys %branches) {
	next if ($branches{$key} eq "closed");
	print BRANCHES "$key";
	$len = length($key);
	if ($len >= 32) {
		$tabs = 1;
	} else {
		$needed = int (32 - $len);
		$tabs = int ($needed / 8);
		if ($needed % 8 != 0) {
			$tabs++;
		}
	}
	for ($i = 0; $i < $tabs; $i++) {
		printf	BRANCHES "\t";
	}
	print BRANCHES "$branches{$key}\t";
	print BRANCHES "$whom{$key}";
	print BRANCHES "\t$comments{$key}" if ($comments{$key} ne "");
	print BRANCHES "\n";
}

print BRANCHES "\n\n";

foreach $key (sort keys %branches) {
	next if ($branches{$key} ne "closed");
	print BRANCHES "$key";
	$len = length($key);
	if ($len >= 32) {
		$tabs = 1;
	} else {
		$needed = int (32 - $len);
		$tabs = int ($needed / 8);
		if ($needed % 8 != 0) {
			$tabs++;
		}
	}
	for ($i = 0; $i < $tabs; $i++) {
		printf	BRANCHES "\t";
	}
	print BRANCHES "$branches{$key}";
	print BRANCHES "\t\t$comments{$key}" if ($comments{$key} ne "");
	print BRANCHES "\n";
}
close(BRANCHES);

#
# Update if changed.
#
if (system("cmp", "-s", "doc/private/newbranches", "doc/private/branches")) {
	rename("doc/private/newbranches", "doc/private/branches") || die "Cannot rename: doc/private/newbranches -> doc/private/branches: $!";
	!system("cvs", "-d", "/proj/cvs/prod", "commit", "-m", "auto update", "doc/private/branches") || die "cvs commit failed: $!";
} else {
	unlink("doc/private/newbranches");
}