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