tools/build-watch.pl
author Mike Sullivan <Mike.Sullivan@Oracle.COM>
Mon, 09 Jun 2014 10:38:56 -0700
changeset 1941 f0078a0c258e
parent 32 280a7444e782
child 3770 ca450a806cc1
permissions -rwxr-xr-x
Close of build 50.
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
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#!/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 $verbose = 0;
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my @ignore = (
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	'^[^/\.].*',		# ignore paths that don't begin with / or .	
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	'^/dev/',		# ignore devices
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	'^/etc/',		# ignore config files
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	'^/proc/',		# ignore /proc
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	'^/tmp/',		# ignore temp files
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	'^/var/',		# ignore more temp/volatile files
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	'^/usr/lib/locale/',	# ignore locale support
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	'^/usr/share/lib/make/',	# ignore make bits
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	'^/usr/share/lib/zoneinfo/',	# ignore timezone info
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	'/SUNWspro/',		# ignore compiler bits
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	'/sunstudio12.1/',	# ignore more compiler bits
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	'^/ws/',		# nothing in /ws can be interesting
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	'^\.[/\.]{0,1}$'	# 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);