pass a text file with input data files to build vpc tool (fix #53970)

src/analysis/processing/pdal/qgsalgorithmpdalbuildvpc.cpp

@@ -117,11 +117,24 @@ QStringList QgsPdalBuildVpcAlgorithm::createArgumentLists( const QVariantMap &pa
 
   applyThreadsParameter( args, context );
 
+  const QString fileName = QgsProcessingUtils::generateTempFilename( QStringLiteral( "inputFiles.txt" ), &context );
+  QFile listFile( fileName );
+  if ( !listFile.open( QIODevice::WriteOnly | QIODevice::Truncate ) )
+  {
+    throw QgsProcessingException( QObject::tr( "Could not create input file list %1" ).arg( fileName ) );
+  }
+
+  QTextStream out( &listFile );
+#if QT_VERSION < QT_VERSION_CHECK(6, 0, 0)
+  out.setCodec( "UTF-8" );
+#endif
   for ( const QgsMapLayer *layer : std::as_const( layers ) )
   {
-    args << layer->source();
+    out << layer->source() << "\n";
   }
 
+  args << QStringLiteral( "--input-file-list=%1" ).arg( fileName );
+
   return args;
 }
 

tests/src/analysis/testqgsprocessingpdalalgs.cpp

@@ -58,6 +58,8 @@ class TestQgsProcessingPdalAlgs: public QgsTest
     void tile();
 
   private:
+    void updateFileListArg( QStringList &args, const QString &fileName );
+
     QString mPointCloudLayerPath;
 };
 
@@ -89,6 +91,26 @@ void TestQgsProcessingPdalAlgs::init()
 {
 }
 
+void TestQgsProcessingPdalAlgs::updateFileListArg( QStringList &args, const QString &fileName )
+{
+  int i = 0;
+  bool found = false;
+  for ( const QString &arg : args )
+  {
+    if ( arg.contains( fileName, Qt::CaseInsensitive ) )
+    {
+      found = true;
+      break;
+    }
+    i++;
+  }
+
+  if ( found )
+  {
+    args[ i ] = QStringLiteral( "--input-file-list=%1" ).arg( fileName );
+  }
+}
+
 void TestQgsProcessingPdalAlgs::info()
 {
   QgsPdalAlgorithmBase *alg = const_cast<QgsPdalAlgorithmBase *>( static_cast< const QgsPdalAlgorithmBase * >( QgsApplication::processingRegistry()->algorithmById( QStringLiteral( "pdal:info" ) ) ) );
@@ -998,64 +1020,65 @@ void TestQgsProcessingPdalAlgs::buildVpc()
   parameters.insert( QStringLiteral( "OUTPUT" ), outputFile );
 
   QStringList args = alg->createArgumentLists( parameters, *context, &feedback );
+  updateFileListArg( args, QStringLiteral( "inputFiles.txt" ) );
   QCOMPARE( args, QStringList() << QStringLiteral( "build_vpc" )
             << QStringLiteral( "--output=%1" ).arg( outputFile )
-            << pointCloud1
+            << QStringLiteral( "--input-file-list=inputFiles.txt" )
           );
 
   // multiple layers
   parameters.insert( QStringLiteral( "LAYERS" ), QStringList() << pointCloud1 << pointCloud2 );
   args = alg->createArgumentLists( parameters, *context, &feedback );
+  updateFileListArg( args, QStringLiteral( "inputFiles.txt" ) );
   QCOMPARE( args, QStringList() << QStringLiteral( "build_vpc" )
             << QStringLiteral( "--output=%1" ).arg( outputFile )
-            << pointCloud1
+            << QStringLiteral( "--input-file-list=inputFiles.txt" )
-            << pointCloud2
           );
 
   // calculate exact boundaries
   parameters.insert( QStringLiteral( "BOUNDARY" ), true );
   args = alg->createArgumentLists( parameters, *context, &feedback );
+  updateFileListArg( args, QStringLiteral( "inputFiles.txt" ) );
   QCOMPARE( args, QStringList() << QStringLiteral( "build_vpc" )
             << QStringLiteral( "--output=%1" ).arg( outputFile )
             << QStringLiteral( "--boundary" )
-            << pointCloud1
+            << QStringLiteral( "--input-file-list=inputFiles.txt" )
-            << pointCloud2
           );
 
   // calculate statistics
   parameters.insert( QStringLiteral( "STATISTICS" ), true );
   args = alg->createArgumentLists( parameters, *context, &feedback );
+  updateFileListArg( args, QStringLiteral( "inputFiles.txt" ) );
   QCOMPARE( args, QStringList() << QStringLiteral( "build_vpc" )
             << QStringLiteral( "--output=%1" ).arg( outputFile )
             << QStringLiteral( "--boundary" )
             << QStringLiteral( "--stats" )
-            << pointCloud1
+            << QStringLiteral( "--input-file-list=inputFiles.txt" )
-            << pointCloud2
           );
 
   // build overview
   parameters.insert( QStringLiteral( "OVERVIEW" ), true );
   args = alg->createArgumentLists( parameters, *context, &feedback );
+  updateFileListArg( args, QStringLiteral( "inputFiles.txt" ) );
   QCOMPARE( args, QStringList() << QStringLiteral( "build_vpc" )
             << QStringLiteral( "--output=%1" ).arg( outputFile )
             << QStringLiteral( "--boundary" )
             << QStringLiteral( "--stats" )
             << QStringLiteral( "--overview" )
-            << pointCloud1
+            << QStringLiteral( "--input-file-list=inputFiles.txt" )
-            << pointCloud2
           );
 
   // set max threads to 2, a --threads argument should be added
   context->setMaximumThreads( 2 );
   args = alg->createArgumentLists( parameters, *context, &feedback );
+  updateFileListArg( args, QStringLiteral( "inputFiles.txt" ) );
   QCOMPARE( args, QStringList() << QStringLiteral( "build_vpc" )
             << QStringLiteral( "--output=%1" ).arg( outputFile )
             << QStringLiteral( "--boundary" )
             << QStringLiteral( "--stats" )
             << QStringLiteral( "--overview" )
             << QStringLiteral( "--threads=2" )
-            << pointCloud1
+            << QStringLiteral( "--input-file-list=inputFiles.txt" )
-            << pointCloud2
           );
 }