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// createCPPfromJavaScriptFiles.js
/* Copyright 2011 10gen Inc.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
// This JavaScript file is run under Windows Script Host from the Visual Studio build.
// It creates .CPP files from JavaScript files and is intended to duplicate the functionality
// of the jsToH Python function in SConstruct. By using only standard Windows components
// (Windows Script Host, JScript) we avoid the need for Visual Studio builders to install
// Python, and we don't need to include the generated files in Git because they can be
// recreated as required.
var whitespace = " \t";
function cppEscape( s ) {
for ( var i = 0, len = s.length; i < len; ++i ) {
if ( whitespace.indexOf( s.charAt( i ) ) === -1 ) {
s = s.substring( i );
break;
}
}
if ( i == len )
return "";
for ( i = s.length - 1; i >= 0; --i ) {
if ( whitespace.indexOf( s.charAt( i ) ) === -1 ) {
s = s.substr( 0, i + 1 );
break;
}
}
s = s.replace( /\\/g, "\\\\" );
s = s.replace( /"/g, '\\"' );
return s;
};
function jsToH( fso, outputFileNameString, inputFileNameStringArray ) {
var displayString = 'jsToH( "' + outputFileNameString + '", [';
var i, len = inputFileNameStringArray.length;
for ( i = 0; i < len; ++i ) {
displayString += '"' + inputFileNameStringArray[i] + '"';
if ( i < len - 1 )
displayString += ', ';
}
displayString += '] );'
WScript.Echo( displayString );
var h = ['#include "bson/stringdata.h"'
, 'namespace mongo {'
, 'struct JSFile{ const char* name; const StringData& source; };'
, 'namespace JSFiles{'
];
for ( i = 0; i < len; ++i ) {
var filename = inputFileNameStringArray[i];
var objname = filename.substring( 0, filename.lastIndexOf( '.' ) ).substr( 1 + filename.lastIndexOf('/') );
var stringname = '_jscode_raw_' + objname;
h.push( 'const StringData ' + stringname + ' = ' );
var inputFile = fso.GetFile( filename );
var inputStream = inputFile.OpenAsTextStream( 1 /* ForReading */, 0 /* TristateFalse == ASCII */ );
while ( !inputStream.AtEndOfStream )
h.push( '"' + cppEscape(inputStream.ReadLine()) + '\\n" ' );
inputStream.Close();
h.push( ';' );
h.push( 'extern const JSFile ' + objname + ';' ); //symbols aren't exported w/o this
h.push( 'const JSFile ' + objname + ' = { "' + filename + '" , ' + stringname + ' };' );
}
h.push( "} // namespace JSFiles" );
h.push( "} // namespace mongo" );
h.push( "" );
var out = fso.CreateTextFile( outputFileNameString, true /* overwrite */ );
out.Write( h.join( '\n' ) );
out.Close();
};
function rebuildIfNeeded( fso, outputFileNameString, inputFileNameStringArray ) {
var rebuildNeeded = false;
if ( !fso.FileExists( outputFileNameString ) ) {
rebuildNeeded = true;
} else {
var outputFileDate = fso.GetFile( outputFileNameString ).DateLastModified;
for ( var i = 0, len = inputFileNameStringArray.length; i < len; ++i ) {
if ( fso.GetFile( inputFileNameStringArray[i] ).DateLastModified > outputFileDate ) {
rebuildNeeded = true;
break;
}
}
}
if ( rebuildNeeded )
jsToH( fso, outputFileNameString, inputFileNameStringArray );
};
var shell = new ActiveXObject( "WScript.Shell" );
shell.CurrentDirectory = WScript.Arguments.Unnamed.Item( 0 );
var fso = new ActiveXObject( "Scripting.FileSystemObject" );
rebuildIfNeeded( fso, "shell/mongo.cpp", ["shell/utils.js", "shell/utils_sh.js", "shell/db.js", "shell/mongo.js", "shell/mr.js", "shell/query.js", "shell/collection.js"] );
rebuildIfNeeded( fso, "shell/mongo-server.cpp", ["shell/servers.js"] );
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