findBlockMeshDict.H

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/*---------------------------------------------------------------------------*\
  =========                 |
  \\      /  F ield         | OpenFOAM: The Open Source CFD Toolbox
   \\    /   O peration     |
    \\  /    A nd           | www.openfoam.com
     \\/     M anipulation  |
-------------------------------------------------------------------------------
    Copyright (C) 2021-2022 OpenCFD Ltd.
-------------------------------------------------------------------------------
License
    This file is part of OpenFOAM, distributed under GPL-3.0-or-later.
 
Description
    Search for the appropriate blockMeshDict dictionary...
 
\*---------------------------------------------------------------------------*/
 
// Search for the appropriate blockMesh dictionary....
const word dictName("blockMeshDict");
 
autoPtr<IOdictionary> meshDictPtr;
 
{
    fileName dictPath;
    const word& regionDir = polyMesh::regionName(regionName);
 
    if (args.readIfPresent("dict", dictPath))
    {
        // Dictionary specified on the command-line ...
 
        if (isDir(dictPath))
        {
            dictPath /= dictName;
        }
    }
    else if
    (
        exists
        (
            runTime.path()/runTime.constant()
          / polyMesh::meshDir(regionName)/dictName
        )
    )
    {
        // Dictionary present in constant polyMesh directory (old-style)
 
        dictPath =
        (
            runTime.constant()
          / polyMesh::meshDir(regionName)/dictName
        );
 
 
        // Warn that constant/polyMesh/blockMeshDict was used
        // instead of system/blockMeshDict
        WarningIn(args.executable())
            << "Using the old blockMeshDict location: "
            << dictPath << nl
            << "    instead of the default location:  "
            << runTime.system()/regionDir/dictName << nl
            << endl;
    }
    else
    {
        // Assume dictionary is to be found in the system directory
 
        dictPath = runTime.system()/regionDir/dictName;
    }
 
    IOobject meshDictIO
    (
        dictPath,
        runTime,
        IOobject::MUST_READ,
        IOobject::NO_WRITE,
        IOobject::NO_REGISTER
    );
 
    if (!meshDictIO.typeHeaderOk<IOdictionary>(true))
    {
        FatalErrorInFunction
            << meshDictIO.objectPath() << nl
            << exit(FatalError);
    }
 
    Info<< "Creating block mesh from "
        << meshDictIO.objectRelPath() << endl;
 
    meshDictPtr = autoPtr<IOdictionary>::New(meshDictIO);
}
 
const IOdictionary& meshDict = *meshDictPtr;
 
 
// ************************************************************************* //