maintenance/hiphop/make

   1 #!/usr/bin/hphpi -f
   2 <?php
   3
   4 require( dirname( __FILE__ ) . '/../Maintenance.php' );
   5
   6 class MakeHipHop extends Maintenance {
   7
   8         function execute() {
   9                 $startTime = time();
  10
  11                 $sourceDir = realpath( dirname( __FILE__ ) );
  12                 $IP = realpath( "$sourceDir/../.." );
  13                 $buildDir = "$sourceDir/build";
  14                 $outDir = "$buildDir/hiphop-output";
  15                 $persistentDir = "$buildDir/persistent" ;
  16
  17                 if ( !is_dir( $buildDir ) ) {
  18                         mkdir( $buildDir, 0777, true );
  19                 }
  20                 if ( !is_dir( $persistentDir ) ) {
  21                         mkdir( $persistentDir, 0777, true );
  22                 }
  23
  24                 # With the CentOS RPMs, you just get g++44, no g++, so we have to
  25                 # use the environment
  26                 if ( isset( $_ENV['CXX'] ) ) {
  27                         $cxx = $_ENV['CXX'];
  28                 } else {
  29                         $cxx = 'g++';
  30                 }
  31
  32                 # Create a function that provides the HipHop compiler version, and
  33                 # doesn't exist when MediaWiki is invoked in interpreter mode.
  34                 $version = str_replace( PHP_EOL, ' ', trim( `hphp --version` ) );
  35                 file_put_contents(
  36                         "$buildDir/HipHopCompilerVersion.php",
  37                         "<" . "?php\n" .
  38                         "function wfHipHopCompilerVersion() {\n" .
  39                         "return " . var_export( $version, true ) . ";\n" .
  40                         "}\n"
  41                 );
  42
  43                 # Generate the C++
  44                 passthru(
  45                         'hphp' .
  46                         ' --target=cpp' .
  47                         ' --format=file' .
  48                         ' --input-dir=' . wfEscapeShellArg( $IP ) .
  49                         ' --input-list=' . wfEscapeShellArg( "$sourceDir/file-list.small" ) .
  50                         ' --inputs=' . wfEscapeShellArg( "$buildDir/HipHopCompilerVersion.php" ) .
  51                         ' -c ' . wfEscapeShellArg( "$sourceDir/compiler.conf" ) .
  52                         ' --parse-on-demand=false' .
  53                         ' --program=mediawiki-hphp' .
  54                         ' --output-dir=' . wfEscapeShellArg( $outDir ) .
  55                         ' --log=3' );
  56
  57                 # Sanity check, quickly make sure we've got an output directory
  58                 if( !is_dir( $outDir ) ) {
  59                         $this->error( "No output directory", true );
  60                 }
  61
  62                 # Copy the generated C++ files into the source directory for cmake
  63                 $iter = new RecursiveIteratorIterator(
  64                         new RecursiveDirectoryIterator( $outDir ),
  65                         RecursiveIteratorIterator::SELF_FIRST );
  66                 $sourceFiles = array();
  67                 $regenerateMakefile = false;
  68                 $numFiles = 0;
  69                 $numFilesChanged = 0;
  70                 foreach ( $iter as $sourcePath => $file ) {
  71                         $name = substr( $sourcePath, strlen( $outDir ) + 1 );
  72                         $sourceFiles[$name] = true;
  73                         $destPath = "$persistentDir/$name";
  74                         if ( $file->isDir() ) {
  75                                 if ( !is_dir( $destPath ) ) {
  76                                         mkdir( $destPath );
  77                                 }
  78                                 continue;
  79                         }
  80
  81                         $numFiles++;
  82                         # Remove any files that weren't touched, these may have been removed
  83                         # from file-list, we should not compile them
  84                         if ( $file->getMTime() < $startTime ) {
  85                                 if ( file_exists( $destPath ) ) {
  86                                         unlink( $destPath );
  87                                         # Files removed, regenerate the makefile
  88                                         $regenerateMakefile = true;
  89                                 }
  90                                 unlink( $sourcePath );
  91                                 $numFilesChanged++;
  92                                 continue;
  93                         }
  94
  95                         if ( file_exists( $destPath ) ) {
  96                                 $sourceHash = md5( file_get_contents( $sourcePath ) );
  97                                 $destHash = md5( file_get_contents( $destPath ) );
  98                                 if ( $sourceHash == $destHash ) {
  99                                         continue;
 100                                 }
 101                         } else {
 102                                 # New files added, regenerate the makefile
 103                                 $regenerateMakefile = true;
 104                         }
 105                         $numFilesChanged++;
 106                         copy( $sourcePath, $destPath );
 107                 }
 108
 109                 echo "MediaWiki: $numFilesChanged files changed out of $numFiles\n";
 110
 111                 if ( !file_exists( "$persistentDir/CMakeLists.txt" ) ) {
 112                         # Run cmake for the first time
 113                         $regenerateMakefile = true;
 114                 }
 115
 116                 # Do our own version of $HPHP_HOME/bin/run.sh, which isn't so broken.
 117                 # HipHop's RELEASE mode seems to be stuck always on, so symbols get
 118                 # stripped. Also we will try keeping the generated .o files instead of
 119                 # throwing away hours of CPU time every time you make a typo.
 120
 121                 chdir( $persistentDir );
 122
 123                 if ( $regenerateMakefile ) {
 124                         copy( $_ENV['HPHP_HOME'] . '/bin/CMakeLists.base.txt',
 125                                 "$persistentDir/CMakeLists.txt" );
 126
 127                         if ( file_exists( "$persistentDir/CMakeCache.txt" ) ) {
 128                                 unlink( "$persistentDir/CMakeCache.txt" );
 129                         }
 130
 131                         $cmd = 'cmake' .
 132                                 ' -D CMAKE_BUILD_TYPE:string=Debug' .
 133                                 ' -D PROGRAM_NAME:string=mediawiki-hphp';
 134
 135                         if ( file_exists( '/usr/bin/ccache' ) ) {
 136                                 $cmd .= ' -D CMAKE_CXX_COMPILER:string=ccache' .
 137                                         ' -D CMAKE_CXX_COMPILER_ARG1:string=' . wfEscapeShellArg( $cxx );
 138                         }
 139
 140                         $cmd .= ' .';
 141                         echo "$cmd\n";
 142                         passthru( $cmd );
 143                 }
 144
 145                 # Determine appropriate make concurrency
 146                 # Compilation can take a lot of memory, let's assume that that is limiting.
 147                 $mem = false;
 148                 foreach ( file( '/proc/meminfo' ) as $line ) {
 149                         if ( preg_match( '/^MemTotal:\s+(\d+)\s+kB/', $line, $m ) ) {
 150                                 $mem = intval( $m[1] );
 151                                 break;
 152                         }
 153                 }
 154                 if ( $mem ) {
 155                         $procs = floor( $mem / 1000000 );
 156                         $procs = $procs >= 1 ? $procs : 1; // No less than 1
 157                 } else {
 158                         $procs = 1;
 159                 }
 160
 161                 # Run make. This is the slow step.
 162                 passthru( 'make -j' . wfEscapeShellArg( $procs ) );
 163
 164                 $elapsed = time() - $startTime;
 165
 166                 echo "Completed in ";
 167                 if ( $elapsed >= 3600 ) {
 168                         $hours = floor( $elapsed / 3600 );
 169                         echo $hours . 'h ';
 170                         $elapsed -= $hours * 3600;
 171                 }
 172                 if ( $elapsed >= 60 ) {
 173                         $minutes = floor( $elapsed / 60 );
 174                         echo $minutes . 'm ';
 175                         $elapsed -= $minutes * 60;
 176                 }
 177                 echo $elapsed . "s\n";
 178                 echo "The MediaWiki executable is at build/persistent/mediawiki-hphp\n";
 179         }
 180 }
 181
 182 $maintClass = 'MakeHipHop';
 183 require_once( RUN_MAINTENANCE_IF_MAIN );