Added JavaScript Baking

assignment-client/src/assets/AssetServer.cpp

@@ -30,6 +30,7 @@
 
 #include <ClientServerUtils.h>
 #include <FBXBaker.h>
+#include <JSBaker.h>
 #include <NodeType.h>
 #include <SharedUtil.h>
 #include <PathUtils.h>
@@ -49,10 +50,11 @@ static const int INTERFACE_RUNNING_CHECK_FREQUENCY_MS = 1000;
 
 const QString ASSET_SERVER_LOGGING_TARGET_NAME = "asset-server";
 
-static const QStringList BAKEABLE_MODEL_EXTENSIONS = { "fbx" };
+static const QStringList BAKEABLE_MODEL_EXTENSIONS = { "fbx" , "js" };
 static QStringList BAKEABLE_TEXTURE_EXTENSIONS;
 static const QString BAKED_MODEL_SIMPLE_NAME = "asset.fbx";
 static const QString BAKED_TEXTURE_SIMPLE_NAME = "texture.ktx";
+static const QString BAKED_SCRIPT_SIMPLE_NAME = "script.js";
 
 void AssetServer::bakeAsset(const AssetHash& assetHash, const AssetPath& assetPath, const QString& filePath) {
     qDebug() << "Starting bake for: " << assetPath << assetHash;
@@ -96,7 +98,11 @@ std::pair<BakingStatus, QString> AssetServer::getAssetStatus(const AssetPath& pa
     QString bakedFilename;
 
     if (BAKEABLE_MODEL_EXTENSIONS.contains(extension)) {
-        bakedFilename = BAKED_MODEL_SIMPLE_NAME;
+        if (extension == "js") {
+            bakedFilename = BAKED_SCRIPT_SIMPLE_NAME;
+        } else {
+            bakedFilename = BAKED_MODEL_SIMPLE_NAME;
+        }
     } else if (BAKEABLE_TEXTURE_EXTENSIONS.contains(extension.toLocal8Bit()) && hasMetaFile(hash)) {
         bakedFilename = BAKED_TEXTURE_SIMPLE_NAME;
     } else {
@@ -183,7 +189,11 @@ bool AssetServer::needsToBeBaked(const AssetPath& path, const AssetHash& assetHa
     }
 
     if (BAKEABLE_MODEL_EXTENSIONS.contains(extension)) {
-        bakedFilename = BAKED_MODEL_SIMPLE_NAME;
+        if (extension == "js") {
+            bakedFilename = BAKED_SCRIPT_SIMPLE_NAME;
+        } else {
+            bakedFilename = BAKED_MODEL_SIMPLE_NAME;
+        }
     } else if (loaded && BAKEABLE_TEXTURE_EXTENSIONS.contains(extension.toLocal8Bit())) {
         bakedFilename = BAKED_TEXTURE_SIMPLE_NAME;
     } else {
@@ -485,7 +495,11 @@ void AssetServer::handleGetMappingOperation(ReceivedMessage& message, SharedNode
         QString bakedRootFile;
 
         if (BAKEABLE_MODEL_EXTENSIONS.contains(assetPathExtension)) {
-            bakedRootFile = BAKED_MODEL_SIMPLE_NAME;
+            if (assetPathExtension == "js") {
+                bakedRootFile = BAKED_SCRIPT_SIMPLE_NAME;
+            } else {
+                bakedRootFile = BAKED_MODEL_SIMPLE_NAME;
+            }
         } else if (BAKEABLE_TEXTURE_EXTENSIONS.contains(assetPathExtension.toLocal8Bit())) {
             bakedRootFile = BAKED_TEXTURE_SIMPLE_NAME;
         }
@@ -1141,6 +1155,7 @@ bool AssetServer::renameMapping(AssetPath oldPath, AssetPath newPath) {
 
 static const QString BAKED_ASSET_SIMPLE_FBX_NAME = "asset.fbx";
 static const QString BAKED_ASSET_SIMPLE_TEXTURE_NAME = "texture.ktx";
+static const QString BAKED_ASSET_SIMPLE_JS_NAME = "script.js";
 
 QString getBakeMapping(const AssetHash& hash, const QString& relativeFilePath) {
     return HIDDEN_BAKED_CONTENT_FOLDER + hash + "/" + relativeFilePath;
@@ -1203,8 +1218,9 @@ void AssetServer::handleCompletedBake(QString originalAssetHash, QString origina
             // setup the mapping for this bake file
             auto relativeFilePath = QUrl(filePath).fileName();
             qDebug() << "Relative file path is: " << relativeFilePath;
-
+            if (relativeFilePath.endsWith(".js", Qt::CaseInsensitive)) {
-            if (relativeFilePath.endsWith(".fbx", Qt::CaseInsensitive)) {
+                relativeFilePath = BAKED_ASSET_SIMPLE_JS_NAME;
+            } else if (relativeFilePath.endsWith(".fbx", Qt::CaseInsensitive)) {
                 // for an FBX file, we replace the filename with the simple name
                 // (to handle the case where two mapped assets have the same hash but different names)
                 relativeFilePath = BAKED_ASSET_SIMPLE_FBX_NAME;
@@ -1350,7 +1366,11 @@ bool AssetServer::setBakingEnabled(const AssetPathList& paths, bool enabled) {
             QString bakedFilename;
     
             if (BAKEABLE_MODEL_EXTENSIONS.contains(extension)) {
-                bakedFilename = BAKED_MODEL_SIMPLE_NAME;
+                if (extension == "js") {
+                    bakedFilename = BAKED_SCRIPT_SIMPLE_NAME;
+                } else {
+                    bakedFilename = BAKED_MODEL_SIMPLE_NAME;
+                }
             } else if (BAKEABLE_TEXTURE_EXTENSIONS.contains(extension.toLocal8Bit()) && hasMetaFile(hash)) {
                 bakedFilename = BAKED_TEXTURE_SIMPLE_NAME;
             } else {

assignment-client/src/assets/BakeAssetTask.cpp

@@ -15,6 +15,7 @@
 
 #include <FBXBaker.h>
 #include <PathUtils.h>
+#include <JSBaker.h>
 
 BakeAssetTask::BakeAssetTask(const AssetHash& assetHash, const AssetPath& assetPath, const QString& filePath) :
     _assetHash(assetHash),
@@ -34,6 +35,10 @@ void BakeAssetTask::run() {
         _baker = std::unique_ptr<FBXBaker> {
             new FBXBaker(QUrl("file:///" + _filePath), fn, PathUtils::generateTemporaryDir())
         };
+    } else if (_assetPath.endsWith(".js", Qt::CaseInsensitive)) {
+        _baker = std::unique_ptr<JSBaker>{
+            new JSBaker(QUrl("file:///" + _filePath), PathUtils::generateTemporaryDir())
+        };
     } else {
         _baker = std::unique_ptr<TextureBaker> {
             new TextureBaker(QUrl("file:///" + _filePath), image::TextureUsage::CUBE_TEXTURE,

libraries/baking/src/JSBaker.cpp

@@ -0,0 +1,349 @@
+#include <QtConcurrent>
+#include <QtCore/QCoreApplication>
+#include <QtCore/QDir>
+#include <QtCore/QEventLoop>
+#include <QtCore/QFileInfo>
+#include <QtCore/QThread>
+#include <PathUtils.h>
+
+#include "JSBaker.h"
+#include "Baker.h"
+
+JSBaker::JSBaker(const QUrl& jsURL, const QString& bakedOutputDir) :
+    _jsURL(jsURL),
+    _bakedOutputDir(bakedOutputDir)
+{
+    
+};
+
+void JSBaker::bake() {
+    
+    auto tempDir = PathUtils::generateTemporaryDir();
+    
+    if (tempDir.isEmpty()) {
+        handleError("Failed to create a temporary directory.");
+        return;
+    }
+
+    _tempDir = tempDir;
+    
+    _originalJSFilePath = _tempDir.filePath(_jsURL.fileName());
+    qDebug() << "Made temporary dir " << _tempDir;
+    qDebug() << "Origin file path: " << _originalJSFilePath;
+
+    connect(this, &JSBaker::sourceCopyReadyToLoad, this, &JSBaker::bakeSourceCopy);
+
+    loadSourceJS();
+}
+
+void JSBaker::loadSourceJS() {
+    
+    // load the local file
+    QFile localJS{ _jsURL.toLocalFile() };
+    
+    if (!localJS.exists()) {
+        
+        handleError("Could not find " + _jsURL.toString());
+        return;
+    }
+
+    // copy to original file
+    qDebug() << "Local file url: " << _jsURL << _jsURL.toString() << _jsURL.toLocalFile() << ", copying to: " << _originalJSFilePath;
+    localJS.copy(_originalJSFilePath);
+
+    // emit signal to indicate script is ready to import
+    emit sourceCopyReadyToLoad();
+}
+
+void JSBaker::bakeSourceCopy() {
+    
+    importScript();
+
+    if (hasErrors()) {
+        return;
+    }
+
+    /*bakeScript();
+    if (hasErrors()) {
+        return;
+    }*/
+    
+    /*exportScript();
+
+    if (hasErrors()) {
+        return;
+    }*/
+}
+
+
+
+void JSBaker::importScript() {
+    
+    //qDebug() << "file path: " << _originalJSFilePath.toLocal8Bit().data() << QDir(_originalJSFilePath).exists();
+    
+    // Import the file to be processed
+    QFile jsFile(_originalJSFilePath);
+    if (!jsFile.open(QIODevice::ReadOnly | QIODevice::Text)) {
+        handleError("Error opening " + _originalJSFilePath + " for reading");
+        return;
+    }
+
+    // Call Bake Script with the opened file
+    bakeScript(&jsFile);
+}
+
+void JSBaker::bakeScript(QFile* inFile) {
+
+    QFile outFile;
+    outFile.open(QIODevice::WriteOnly | QIODevice::Text);
+    QTextStream in(inFile);
+    QTextStream out(&outFile);
+
+    QChar currentChar;
+    QChar prevChar;
+    QChar nextChar;
+    
+    // Initialize prevChar with new line
+    prevChar = '\n';
+    in >> currentChar;
+    
+    while (!in.atEnd()) {
+        
+        // Reading per character
+        in >> nextChar;
+
+        if (currentChar == '\r') {
+            out << '\n';
+            //currentChar = '\n';
+            
+        } else if (currentChar == '/') {
+            
+            if (nextChar == '/') {
+                 
+                handleSingleLineComments(&in);
+                //out << '\n';
+                
+                //Start fresh after handling comments
+                prevChar = '\n';
+                in >> currentChar;
+                continue;
+
+            } else if (nextChar == '*') {
+                
+                handleMultiLineComments(&in);
+                //out << ' ';
+                
+                //Start fresh after handling comments
+                prevChar = '\n';
+                in >> currentChar;
+                //currentChar = ' ';
+                continue;
+            } else {
+                out << currentChar;
+            }
+        } else if (currentChar == ' ' || (int) currentChar.toLatin1() == 9) {
+            
+            // Handle multiple spaces
+            if (nextChar == ' ' || (int)currentChar.toLatin1() == 9) {
+                while (nextChar == ' ' || (int)nextChar.toLatin1() == 9 ) {
+                    
+                    in >> nextChar;
+                    if (nextChar == '\n')
+                        break;
+                }
+            }
+            if (!omitSpace(prevChar,nextChar)) {
+
+                out << ' ';
+            }
+
+        } else if (currentChar == '\n') {
+            qDebug() << "prevChar2" << prevChar;
+            qDebug() << "currentChar2" << currentChar;
+            qDebug() << "nextChar2" << nextChar;
+            //Handle multiple new lines
+            //Hnadle new line followed by space or tab
+            if (nextChar == '\n' || nextChar == ' ' || (int)nextChar.toLatin1() == 9) {
+                while (nextChar == '\n' || nextChar == ' ' || (int)nextChar.toLatin1() == 9) {
+                    in >> nextChar;
+                }
+            } 
+
+            if (!omitNewLine(prevChar, nextChar)) {
+                out << '\n';
+            }
+            
+        } else if (currentChar == '"' ) {
+            //Don't modify quoted strings
+            out << currentChar;
+            out << nextChar;
+            while (nextChar != '"') {
+                in >> nextChar;
+                out << nextChar;
+            }
+
+            
+            //Start fresh after handling quoted strings
+            //prevChar = '"';
+            prevChar = nextChar;
+            //currentChar = nextChar;
+            in >> currentChar;
+            continue;
+        } else if (currentChar == "'") {
+            //Don't modify quoted strings
+            out << currentChar;
+            out << nextChar;
+            while (nextChar != "'") {
+                in >> nextChar;
+                out << nextChar;
+            }
+            
+            qDebug() << "prevChar" << prevChar;
+            qDebug() << "currentChar" << currentChar;
+            qDebug() << "nextChar" << nextChar;
+
+            //out << nextChar;
+            //Start fresh after handling quoted strings
+            //prevChar = '\'';
+            prevChar = nextChar;
+            //currentChar = nextChar;
+            in >> currentChar;
+            qDebug() << "prevChar1" << prevChar;
+            qDebug() << "currentChar1" << currentChar;
+            qDebug() << "nextChar1" << nextChar;
+            continue;
+        } else {
+            out << currentChar;
+            
+        } 
+
+        prevChar = currentChar;
+        currentChar = nextChar;
+    }
+    
+    //Output current character when next character reaches EOF
+    if (currentChar != '\n') {
+
+        out << currentChar;
+    }
+    
+    
+    inFile->close();
+    exportScript(&outFile);
+}
+
+void JSBaker::handleSingleLineComments(QTextStream * in) {
+    QChar ch;
+    
+    while (!in->atEnd()) {
+        *in >> ch;
+        if (ch <= '\n')
+        break;
+    }
+    
+    //*out << '\n';
+}
+
+void JSBaker::handleMultiLineComments(QTextStream * in) {
+    QChar ch;
+
+    while (!in->atEnd()) {
+        *in >> ch;
+        if (ch == '*') {
+            if (in->read(1) == '/') {
+                return;
+            }
+        }
+    }
+
+    handleError("Eror unterminated multi line comment");
+
+}
+
+bool JSBaker::isAlphanum(QChar c) {
+    return ((c >= 'a' && c <= 'z') || (c >= '0' && c <= '9') ||
+        (c >= 'A' && c <= 'Z') || c == '_' || c == '$' || c == '\\' ||
+            c > 126);
+}
+
+bool JSBaker::omitSpace(QChar prevChar, QChar nextChar) {
+
+    if ((isAlphanum(prevChar) || isNonAscii(prevChar) || isSpecialChar(prevChar)) &&
+        (isAlphanum(nextChar) || isNonAscii(nextChar) || isSpecialChar(nextChar))
+        ) {
+
+        return false;
+    }
+
+    return true;
+
+}
+
+bool JSBaker::isNonAscii(QChar c) {
+    return ((int)c.toLatin1() > 127);
+}
+
+bool JSBaker::isSpecialChar(QChar c) {
+    
+    if (c == '\'' || c == '$' || c == '_')
+        return true;
+
+    return false;
+}
+
+bool JSBaker::isSpecialCharPre(QChar c) {
+
+    if (c == '\'' || c == '$' || c == '_' || c == '}' || c == ']' || c == ')' || c == '+' || c == '-' 
+        || c == '"' || c == "'")
+        return true;
+
+    return false;
+}
+
+bool JSBaker::isSpecialCharPost(QChar c) {
+
+    if (c == '\'' || c == '$' || c == '_' || c == '{' || c == '[' || c == '(' || c == '+' || c == '-' || c == '/')
+        return true;
+
+    return false;
+}
+
+bool JSBaker::omitNewLine(QChar prevChar, QChar nextChar) {
+
+    if ((isAlphanum(prevChar) || isNonAscii(prevChar) || isSpecialCharPre(prevChar)) &&
+        (isAlphanum(nextChar) || isNonAscii(nextChar) || isSpecialCharPost(nextChar))
+        ) {
+
+        return false;
+    }
+
+    return true;
+
+}
+
+void JSBaker::exportScript(QFile* bakedFile) {
+    // save the relative path to this FBX inside our passed output folder
+    auto fileName = _jsURL.fileName();
+    auto baseName = fileName.left(fileName.lastIndexOf('.'));
+    auto bakedFilename = baseName + BAKED_JS_EXTENSION;
+
+    _bakedJSFilePath = _bakedOutputDir + "/" + bakedFilename;
+
+    bakedFile->setFileName(_bakedJSFilePath);
+
+    //QFile bakedFile(_bakedJSFilePath);
+
+    if (!bakedFile->open(QIODevice::WriteOnly)) {
+        handleError("Error opening " + _bakedJSFilePath + " for writing");
+        return;
+    }
+
+    /*QByteArray x(5, 'a');
+    bakedFile.copy();*/
+
+    _outputFiles.push_back(_bakedJSFilePath);
+
+    qCDebug(model_baking) << "Exported" << _jsURL << "with re-written paths to" << _bakedJSFilePath;
+    bakedFile->close();
+    emit finished();
+}

libraries/baking/src/JSBaker.h

@@ -0,0 +1,57 @@
+#ifndef hifi_JSBaker_h
+#define hifi_JSBaker_h
+
+#include <QtCore/QFutureSynchronizer>
+#include <QtCore/QDir>
+#include <QtCore/QUrl>
+
+#include "Baker.h"
+#include "TextureBaker.h"
+#include "ModelBakingLoggingCategory.h"
+
+static const QString BAKED_JS_EXTENSION = ".baked.js";
+
+class JSBaker : public Baker {
+    Q_OBJECT
+
+public:
+    JSBaker(const QUrl& jsURL, const QString& bakedOutputDir);
+
+public slots:
+    virtual void bake() override;
+
+signals:
+    void sourceCopyReadyToLoad();
+
+private slots:
+    void bakeSourceCopy();
+
+
+private :
+    
+    QUrl _jsURL;
+    QString _bakedOutputDir;
+    QDir _tempDir;
+    QString _originalJSFilePath;
+    QString _bakedJSFilePath;
+    QByteArray _buffer;
+
+    void loadSourceJS();
+    void importScript();
+    
+    void exportScript(QFile*);
+    void bakeScript(QFile*);
+    void handleSingleLineComments(QTextStream*);
+    void handleMultiLineComments(QTextStream*);
+
+    bool isAlphanum(QChar);
+    bool omitSpace(QChar, QChar);
+    bool isNonAscii(QChar c);
+    bool isSpecialChar(QChar c);
+    bool isSpecialCharPre(QChar c);
+    bool isSpecialCharPost(QChar c);
+    bool omitNewLine(QChar, QChar);
+
+};
+
+#endif // !hifi_JSBaker_h