Add support for scanning qrc files in qmlimportscanner

This reuses the ResourceFileMapper and extends it slightly to return
full paths on request. Subsequently, this is moved into a shared
directory inside tools.

Fixes: QTBUG-55259
Change-Id: Ice5fc68d03b767a4185742e182556ab4290bd28d
Reviewed-by: Simon Hausmann <simon.hausmann@qt.io>
Reviewed-by: Fabian Kosmale <fabian.kosmale@qt.io>

tools/qmlcachegen/qmlcachegen.pro

@@ -5,8 +5,10 @@ DEFINES += QT_NO_CAST_TO_ASCII QT_NO_CAST_FROM_ASCII
 
 SOURCES = qmlcachegen.cpp \
     resourcefilter.cpp \
-    generateloader.cpp \
-    resourcefilemapper.cpp
+    generateloader.cpp
+
+include(../shared/shared.pri)
+
 TARGET = qmlcachegen
 
 build_integration.files = qmlcache.prf qtquickcompiler.prf
@@ -38,5 +40,3 @@ QMAKE_TARGET_DESCRIPTION = QML Cache Generator
 
 load(qt_tool)
 
-HEADERS += \
-    resourcefilemapper.h

tools/qmlimportscanner/main.cpp

@@ -49,6 +49,8 @@
 #include <QtCore/QJsonDocument>
 #include <QtCore/QLibraryInfo>
 
+#include <resourcefilemapper.h>
+
 #include <iostream>
 #include <algorithm>
 
@@ -80,7 +82,8 @@ void printUsage(const QString &appNameIn)
 #endif
     std::wcerr
         << "Usage: " << appName << " -rootPath path/to/app/qml/directory -importPath path/to/qt/qml/directory\n"
-           "       " << appName << " -qmlFiles file1 file2 -importPath path/to/qt/qml/directory\n\n"
+           "       " << appName << " -qmlFiles file1 file2 -importPath path/to/qt/qml/directory\n"
+           "       " << appName << " -qrcFiles file1.qrc file2.qrc -importPath path/to/qt/qml/directory\n\n"
            "Example: " << appName << " -rootPath . -importPath "
         << QDir::toNativeSeparators(qmlPath).toStdWString()
         << '\n';
@@ -542,6 +545,7 @@ int main(int argc, char *argv[])
     QStringList qmlRootPaths;
     QStringList scanFiles;
     QStringList qmlImportPaths;
+    QStringList qrcFiles;
     bool generateCmakeContent = false;
 
     int i = 1;
@@ -569,6 +573,8 @@ int main(int argc, char *argv[])
             argReceiver = &qmlImportPaths;
         } else if (arg == QLatin1String("-cmake-output")) {
              generateCmakeContent = true;
+        } else if (arg == QLatin1String("-qrcFiles")) {
+            argReceiver = &qrcFiles;
         } else {
             std::cerr << qPrintable(appName) << ": Invalid argument: \""
                 << qPrintable(arg) << "\"\n";
@@ -590,6 +596,9 @@ int main(int argc, char *argv[])
         }
     }
 
+    if (!qrcFiles.isEmpty())
+        scanFiles << ResourceFileMapper(qrcFiles).qmlCompilerFiles(ResourceFileMapper::FileOutput::AbsoluteFilePath);
+
     g_qmlImportPaths = qmlImportPaths;
 
     // Find the imports!

tools/qmlimportscanner/qmlimportscanner.pro

@@ -4,6 +4,7 @@ QT = core qmldevtools-private
 DEFINES += QT_NO_CAST_TO_ASCII QT_NO_CAST_FROM_ASCII
 
 SOURCES += main.cpp
+include(../shared/shared.pri)
 
 load(cmake_functions)
 

tools/shared/resourcefilemapper.cpp

@@ -58,7 +58,7 @@ QStringList ResourceFileMapper::resourcePaths(const QString &fileName)
     return resourcePaths;
 }
 
-QStringList ResourceFileMapper::qmlCompilerFiles() const
+QStringList ResourceFileMapper::qmlCompilerFiles(FileOutput fo) const
 {
     QStringList files;
     for (auto it = qrcPathToFileSystemPath.constBegin(), end = qrcPathToFileSystemPath.constEnd();
@@ -67,7 +67,10 @@ QStringList ResourceFileMapper::qmlCompilerFiles() const
         const QString suffix = QFileInfo(qrcPath).suffix();
         if (suffix != QStringLiteral("qml") && suffix != QStringLiteral("js") && suffix != QStringLiteral("mjs"))
             continue;
-        files << qrcPath;
+        if (fo == FileOutput::AbsoluteFilePath)
+            files << it.value();
+        else
+            files << qrcPath;
     }
     return files;
 }

tools/shared/resourcefilemapper.h

@@ -34,12 +34,16 @@
 
 struct ResourceFileMapper
 {
+    enum class FileOutput {
+        RelativeFilePath,
+        AbsoluteFilePath
+    };
     ResourceFileMapper(const QStringList &resourceFiles);
 
     bool isEmpty() const;
 
     QStringList resourcePaths(const QString &fileName);
-    QStringList qmlCompilerFiles() const;
+    QStringList qmlCompilerFiles(FileOutput fo = FileOutput::RelativeFilePath) const;
 
 private:
     void populateFromQrcFile(QFile &file);

tools/shared/shared.pri

@@ -0,0 +1,3 @@
+INCLUDEPATH += $$PWD
+SOURCES += $$PWD/resourcefilemapper.cpp
+HEADERS += $$PWD/resourcefilemapper.h