#!/usr/perl5/bin/perl
#
# CDDL HEADER START
#
# The contents of this file are subject to the terms of the
# Common Development and Distribution License (the "License").
# You may not use this file except in compliance with the License.
#
# You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
# or http://www.opensolaris.org/os/licensing.
# See the License for the specific language governing permissions
# and limitations under the License.
#
# When distributing Covered Code, include this CDDL HEADER in each
# file and include the License file at usr/src/OPENSOLARIS.LICENSE.
# If applicable, add the following below this CDDL HEADER, with the
# fields enclosed by brackets "[]" replaced with your own identifying
# information: Portions Copyright [yyyy] [name of copyright owner]
#
# CDDL HEADER END
#
# Copyright (c) 2010, Oracle and/or its affiliates. All rights reserved.
#
#
# build-watch.pl - a simple utility to watch a process and it's children under
# dtrace and process the results for dependency information.
#
# Ex:
# $ export WS_TOP=/top/of/your/workspace
# $ cd $(WS_TOP)/components/{component}
# $ $(WS_TOP)/tools/build-watch.pl -c "gmake install"
#
use File::Temp qw/tempfile/;
use Getopt::Long;
my $verbose = 0;
my @ignore = (
'^[^/\.].*', # ignore paths that don't begin with / or .
'^/dev/', # ignore devices
'^/etc/', # ignore config files
'^/proc/', # ignore /proc
'^/tmp/', # ignore temp files
'^/var/', # ignore more temp/volatile files
'^/usr/lib/locale/', # ignore locale support
'^/usr/share/lib/make/', # ignore make bits
'^/usr/share/lib/zoneinfo/', # ignore timezone info
'/SUNWspro/', # ignore compiler bits
'/sunstudio12.1/', # ignore more compiler bits
'^/ws/', # nothing in /ws can be interesting
'^\.[/\.]{0,1}$' # ignore ., .., and ./
);
sub match
{
local($string, @expressions) = @_;
foreach (@expressions) {
($string =~ m{$_}) && return (1);
}
return (0);
}
sub process_dtrace_results
{
local ($filename) = @_;
my (%tools, %files, $fh) = ();
open($fh, "<$filename") || die "open($filename): $!\n";
while (<$fh>) {
if (/^TOOL:\s+(\S+) = (\S+)$/) {
$tools{$2} = $1;
} elsif ((/^FILE:\s+(\S+)\s*$/) && (match($1, @ignore) == 0) &&
(-e $1)) {
$files{$1} = $1;
}
}
close($fh);
return (\%tools, \%files);
}
sub generate_package_requirements
{
local (*tools, *files) = @_;
my ($count, %pkgs, @search_strings, $search_string) = (0);
# create a set of search strings to query the package DB
foreach (sort (keys %tools, keys %files)) {
if ($count++ % 100 == 0) {
defined($search_string) && \
push(@search_strings, $search_string);
$search_string = $_;
} else {
$search_string .= " OR $_";
}
}
push(@search_strings, $search_string);
# walk through the search strings and query the package DB
foreach (@search_strings) {
my $IFH;
open($IFH, "pkg search -l -H -o path,pkg.name '$_'|");
while (<$IFH>) {
(/^(\S+)\s+(\S+)$/) && ($pkgs{$1} = $2);
}
close($IFH);
}
return (\%pkgs);
}
#
# Main execution begins here
#
GetOptions("c|command=s" => \$cmd, "i|input-file=s" => \@file,
"p|pkg" => \$pkg_flag, "v|verbose" => \$verbose);
if (defined($cmd)) {
$file = (tempfile(UNLINK => 1))[1];
if (!defined($ENV{'WS_TOP'})) {
print("WS_TOP must be set in the calling environment\n");
exit(1);
}
($verbose == 1) && print("*** Executing '$cmd' under dtrace...\n");
system($ENV{'WS_TOP'}."/tools/build-watch.d", "-o", $file, "-c", $cmd);
}
($verbose == 1) && printf("*** Processing results...\n");
my ($tools, $files) = process_dtrace_results($file);
if (defined($pkg_flag)) {
($verbose == 1) && printf("*** Generating package requirements...\n");
my ($pkgs) = generate_package_requirements($tools, $files);
}
if (defined($tools)) {
print "\n";
print "REQUIRED_TOOL +=\t$_\n" for (sort keys %$tools);
}
if (defined($files)) {
print "\n";
print "REQUIRED_FILE +=\t$_\n" for (sort keys %$files);
}
if (defined($pkgs)) {
@unique{values %$pkgs} = ();
print "\n";
print "REQUIRED_PKG +=\t$_\n" for (sort keys %unique);
}
exit(0);