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#!/usr/bin/hphpi -f
<?php
define( 'MW_CONFIG_CALLBACK', 'MakeHipHop::noConfigNeeded' );
require( __DIR__ . '/../Maintenance.php' );
class MakeHipHop extends Maintenance {
function noConfigNeeded() {}
function execute() {
global $wgHipHopBuildDirectory;
$startTime = time();
$thisDir = realpath( __DIR__ );
$IP = realpath( "$thisDir/../.." );
if ( strval( $wgHipHopBuildDirectory ) !== '' ) {
$buildDir = $wgHipHopBuildDirectory;
} else {
$buildDir = "$thisDir/build";
}
$extensionsDir = realpath( MWInit::getExtensionsDirectory() );
$outDir = "$buildDir/hiphop-output";
$persistentDir = "$buildDir/persistent";
if ( !is_dir( $buildDir ) ) {
mkdir( $buildDir, 0777, true );
}
if ( !is_dir( $persistentDir ) ) {
mkdir( $persistentDir, 0777, true );
}
if ( realpath( "$IP/../phase3" ) !== $IP
|| realpath( "$IP/../extensions" ) !== $extensionsDir )
{
# Set up a fake source directory with the correct layout
$sourceBase = "$buildDir/source";
$this->setupFakeSourceBase( $IP, $extensionsDir, $sourceBase );
} else {
$sourceBase = realpath( "$IP/.." );
unlink( "$buildDir/source" );
}
# With the CentOS RPMs, you just get g++44, no g++, so we have to
# use the environment
if ( isset( $_ENV['CXX'] ) ) {
$cxx = $_ENV['CXX'];
} else {
$cxx = 'g++';
}
# Create a function that provides the HipHop compiler version, and
# doesn't exist when MediaWiki is invoked in interpreter mode.
$version = str_replace( PHP_EOL, ' ', trim( `hphp --version` ) );
file_put_contents(
"$buildDir/HipHopCompilerVersion.php",
"<" . "?php\n" .
"function wfHipHopCompilerVersion() {\n" .
"return " . var_export( $version, true ) . ";\n" .
"}\n"
);
# Generate the file list
$files = $this->getFileList();
file_put_contents(
"$buildDir/file-list",
implode( "\n", $files ) . "\n" );
# Generate the C++
passthru(
'hphp' .
' --target=cpp' .
' --format=file' .
' --input-dir=' . wfEscapeShellArg( $sourceBase ) .
' --input-list=' . wfEscapeShellArg( "$buildDir/file-list" ) .
' --inputs=' . wfEscapeShellArg( "$buildDir/HipHopCompilerVersion.php" ) .
' -c ' . wfEscapeShellArg( "$thisDir/compiler.conf" ) .
' --parse-on-demand=false' .
' --program=mediawiki-hphp' .
' --output-dir=' . wfEscapeShellArg( $outDir ) .
' --log=3', $ret );
if ( $ret ) {
$this->error( "hphp hit an error. Stopping build.\n" );
exit( 1 );
}
# Sanity check, quickly make sure we've got an output directory
if( !is_dir( $outDir ) ) {
$this->error( "No output directory", true );
}
# Warn about volatile classes
$this->checkVolatileClasses( $outDir );
# Copy the generated C++ files into the source directory for cmake
$iter = new RecursiveIteratorIterator(
new RecursiveDirectoryIterator( $outDir ),
RecursiveIteratorIterator::SELF_FIRST );
$sourceFiles = array();
$regenerateMakefile = false;
$numFiles = 0;
$numFilesChanged = 0;
foreach ( $iter as $sourcePath => $file ) {
$name = substr( $sourcePath, strlen( $outDir ) + 1 );
$sourceFiles[$name] = true;
$destPath = "$persistentDir/$name";
if ( $file->isDir() ) {
if ( !is_dir( $destPath ) ) {
mkdir( $destPath );
}
continue;
}
$numFiles++;
# Remove any files that weren't touched, these may have been removed
# from file-list, we should not compile them
if ( $file->getMTime() < $startTime ) {
if ( file_exists( $destPath ) ) {
unlink( $destPath );
# Files removed, regenerate the makefile
$regenerateMakefile = true;
}
unlink( $sourcePath );
$numFilesChanged++;
continue;
}
if ( file_exists( $destPath ) ) {
$sourceHash = md5( file_get_contents( $sourcePath ) );
$destHash = md5( file_get_contents( $destPath ) );
if ( $sourceHash == $destHash ) {
continue;
}
} else {
# New files added, regenerate the makefile
$regenerateMakefile = true;
}
$numFilesChanged++;
copy( $sourcePath, $destPath );
}
echo "MediaWiki: $numFilesChanged files changed out of $numFiles\n";
if ( !file_exists( "$persistentDir/CMakeLists.txt" ) ) {
# Run cmake for the first time
$regenerateMakefile = true;
}
# Do our own version of $HPHP_HOME/bin/run.sh, which isn't so broken.
# HipHop's RELEASE mode seems to be stuck always on, so symbols get
# stripped. Also we will try keeping the generated .o files instead of
# throwing away hours of CPU time every time you make a typo.
chdir( $persistentDir );
if ( $regenerateMakefile ) {
copy( $_ENV['HPHP_HOME'] . '/bin/CMakeLists.base.txt',
"$persistentDir/CMakeLists.txt" );
if ( file_exists( "$persistentDir/CMakeCache.txt" ) ) {
unlink( "$persistentDir/CMakeCache.txt" );
}
$cmd = 'cmake' .
" -D CMAKE_BUILD_TYPE:string=" . wfEscapeShellArg( $GLOBALS['wgHipHopBuildType'] ) .
' -D PROGRAM_NAME:string=mediawiki-hphp';
if ( file_exists( '/usr/bin/ccache' ) ) {
$cmd .= ' -D CMAKE_CXX_COMPILER:string=ccache' .
' -D CMAKE_CXX_COMPILER_ARG1:string=' . wfEscapeShellArg( $cxx );
}
$cmd .= ' .';
echo "$cmd\n";
passthru( $cmd );
}
# Determine appropriate make concurrency
# Compilation can take a lot of memory, let's assume that that is limiting.
$procs = $this->getNumProcs();
# Run make. This is the slow step.
passthru( 'make -j' . wfEscapeShellArg( $procs ) );
$elapsed = time() - $startTime;
echo "Completed in ";
if ( $elapsed >= 3600 ) {
$hours = floor( $elapsed / 3600 );
echo $hours . 'h ';
$elapsed -= $hours * 3600;
}
if ( $elapsed >= 60 ) {
$minutes = floor( $elapsed / 60 );
echo $minutes . 'm ';
$elapsed -= $minutes * 60;
}
echo $elapsed . "s\n";
echo "The MediaWiki executable is at $buildDir/persistent/mediawiki-hphp\n";
}
function checkVolatileClasses( $dir ) {
$lines = file( "$dir/sys/dynamic_table_class.cpp" );
$classes = array();
foreach ( $lines as $line ) {
if ( preg_match( '/^\s+\(const char \*\)"([^"]*)", \(const char \*\)-1/', $line, $m ) ) {
$classes[] = $m[1];
}
}
if ( !count( $classes ) ) {
print "No volatile classes found\n";
return;
}
sort( $classes );
$classes = array_unique( $classes );
print "WARNING: The following classes are volatile: " . implode( ', ', $classes ) . "\n";
}
function getNumProcs() {
global $wgHipHopCompilerProcs;
if ( $wgHipHopCompilerProcs !== 'detect' ) {
return intval( $wgHipHopCompilerProcs );
}
if ( !file_exists( '/proc/meminfo' ) ) {
return 1;
}
$mem = false;
foreach ( file( '/proc/meminfo' ) as $line ) {
if ( preg_match( '/^MemTotal:\s+(\d+)\s+kB/', $line, $m ) ) {
$mem = intval( $m[1] );
break;
}
}
if ( $mem ) {
// At least one process
return max( 1, floor( $mem / 1000000 ) );
} else {
return 1;
}
}
function setupFakeSourceBase( $phase3, $extensions, $dest ) {
if ( !file_exists( $dest ) ) {
mkdir( $dest, 0777, true );
}
$this->forceCreateLink( "$dest/phase3", $phase3 );
$this->forceCreateLink( "$dest/extensions", $extensions );
}
function forceCreateLink( $target, $link ) {
if ( file_exists( $target ) ) {
if ( readlink( $target ) === $link ) {
return;
}
unlink( $target );
}
symlink( $target, $link );
}
function getFileList() {
global $wgAutoloadClasses, $wgAutoloadLocalClasses, $wgCompiledFiles;
$inputFiles = array_merge(
array_values( $wgAutoloadClasses ),
array_values( $wgAutoloadLocalClasses ),
$wgCompiledFiles
);
$processedFiles = array();
foreach ( $inputFiles as $file ) {
if ( substr( $file, 0, 1 ) === '/' ) {
$processedFiles[] = $this->absoluteToRelative( $file );
} elseif ( preg_match( '/^extensions/', $file ) ) {
$processedFiles[] = $file;
} else {
$processedFiles[] = "phase3/$file";
}
}
$extraCoreFiles = array_map( 'trim', file( __DIR__ . '/extra-files' ) );
foreach ( $extraCoreFiles as $file ) {
if ( $file === '' ) {
continue;
}
$processedFiles[] = "phase3/$file";
}
return array_unique( $processedFiles );
}
function absoluteToRelative( $file ) {
global $IP;
$coreBase = realpath( $IP ) . '/';
$extBase = realpath( MWInit::getExtensionsDirectory() ) . '/';
$file = realpath( $file );
if ( substr( $file, 0, strlen( $extBase ) ) === $extBase ) {
return 'extensions/' . substr( $file, strlen( $extBase ) );
} elseif ( substr( $file, 0, strlen( $coreBase ) ) === $coreBase ) {
return 'phase3/' . substr( $file, strlen( $coreBase ) );
} else {
$this->error( "The following file is registered for compilation but is not in \$IP or " .
"\$wgExtensionsDirectory: $file \n" );
exit( 1 );
}
}
}
$maintClass = 'MakeHipHop';
require_once( RUN_MAINTENANCE_IF_MAIN );