ENH: have MUST_READ_IF_MODIFIED on IOdictionary construction

applications/utilities/mesh/advanced/autoRefineMesh/autoRefineMesh.C

@@ -639,7 +639,7 @@ int main(int argc, char *argv[])
         "motionProperties",
         runTime.constant(),
         mesh,
-        IOobject::MUST_READ,
+        IOobject::MUST_READ_IF_MODIFIED,
         IOobject::NO_WRITE
     );
 
@@ -669,7 +669,7 @@ int main(int argc, char *argv[])
             "autoRefineMeshDict",
             runTime.system(),
             mesh,
-            IOobject::MUST_READ,
+            IOobject::MUST_READ_IF_MODIFIED,
             IOobject::NO_WRITE
         )
     );

applications/utilities/mesh/advanced/combinePatchFaces/combinePatchFaces.C

@@ -74,7 +74,7 @@ void checkSnapMesh
             "snapMeshDict",
             runTime.system(),
             mesh,
-            IOobject::MUST_READ,
+            IOobject::MUST_READ_IF_MODIFIED,
             IOobject::NO_WRITE
         )
     );

applications/utilities/mesh/advanced/modifyMesh/modifyMesh.C

@@ -346,7 +346,7 @@ int main(int argc, char *argv[])
             "modifyMeshDict",
             runTime.system(),
             mesh,
-            IOobject::MUST_READ,
+            IOobject::MUST_READ_IF_MODIFIED,
             IOobject::NO_WRITE
         )
     );

applications/utilities/mesh/advanced/selectCells/edgeStats.C

@@ -78,7 +78,7 @@ Foam::edgeStats::edgeStats(const polyMesh& mesh)
         "motionProperties",
         mesh.time().constant(),
         mesh,
-        IOobject::MUST_READ,
+        IOobject::MUST_READ_IF_MODIFIED,
         IOobject::NO_WRITE
     );
 

applications/utilities/mesh/advanced/selectCells/selectCells.C

@@ -346,7 +346,7 @@ int main(int argc, char *argv[])
             "selectCellsDict",
             runTime.system(),
             mesh,
-            IOobject::MUST_READ,
+            IOobject::MUST_READ_IF_MODIFIED,
             IOobject::NO_WRITE
         )
     );

applications/utilities/mesh/conversion/foamToStarMesh/getTimeIndex.H

@@ -29,7 +29,7 @@
                     runTime.timeName(),
                     "uniform",
                     runTime,
-                    IOobject::MUST_READ,
+                    IOobject::MUST_READ_IF_MODIFIED,
                     IOobject::NO_WRITE,
                     false
                 )

applications/utilities/mesh/conversion/foamToSurface/getTimeIndex.H

@@ -29,7 +29,7 @@
                     runTime.timeName(),
                     "uniform",
                     runTime,
-                    IOobject::MUST_READ,
+                    IOobject::MUST_READ_IF_MODIFIED,
                     IOobject::NO_WRITE,
                     false
                 )

applications/utilities/mesh/generation/blockMesh/blockMeshApp.C

@@ -121,7 +121,7 @@ int main(int argc, char *argv[])
                   : dictPath
                 ),
                 runTime,
-                IOobject::MUST_READ,
+                IOobject::MUST_READ_IF_MODIFIED,
                 IOobject::NO_WRITE,
                 false
             )
@@ -137,7 +137,7 @@ int main(int argc, char *argv[])
                 runTime.constant(),
                 polyMeshDir,
                 runTime,
-                IOobject::MUST_READ,
+                IOobject::MUST_READ_IF_MODIFIED,
                 IOobject::NO_WRITE,
                 false
             )

applications/utilities/mesh/generation/extrudeMesh/extrudeMesh.C

@@ -218,7 +218,7 @@ int main(int argc, char *argv[])
             runTimeExtruded.constant(),
             regionDir,
             runTimeExtruded,
-            IOobject::MUST_READ
+            IOobject::MUST_READ_IF_MODIFIED
         )
     );
 

applications/utilities/mesh/generation/snappyHexMesh/snappyHexMesh.C

@@ -144,7 +144,7 @@ int main(int argc, char *argv[])
             "decomposeParDict",
             runTime.system(),
             mesh,
-            IOobject::MUST_READ,
+            IOobject::MUST_READ_IF_MODIFIED,
             IOobject::NO_WRITE
         )
     );
@@ -157,7 +157,7 @@ int main(int argc, char *argv[])
             "snappyHexMeshDict",
             runTime.system(),
             mesh,
-            IOobject::MUST_READ,
+            IOobject::MUST_READ_IF_MODIFIED,
             IOobject::NO_WRITE
        )
     );

applications/utilities/mesh/manipulation/createPatch/createPatch.C

@@ -532,7 +532,7 @@ int main(int argc, char *argv[])
               : word::null
             ),
             runTime,
-            IOobject::MUST_READ,
+            IOobject::MUST_READ_IF_MODIFIED,
             IOobject::NO_WRITE,
             false
         )

applications/utilities/mesh/manipulation/mirrorMesh/mirrorFvMesh.C

@@ -39,7 +39,7 @@ Foam::mirrorFvMesh::mirrorFvMesh(const IOobject& io)
             "mirrorMeshDict",
             time().system(),
             *this,
-            IOobject::MUST_READ,
+            IOobject::MUST_READ_IF_MODIFIED,
             IOobject::NO_WRITE
         )
     ),

applications/utilities/mesh/manipulation/mirrorMesh/readMirrorDict.H

@@ -7,7 +7,7 @@
             "mirrorMeshDict",
             runTime.system(),
             mesh,
-            IOobject::MUST_READ,
+            IOobject::MUST_READ_IF_MODIFIED,
             IOobject::NO_WRITE
         )
     );

applications/utilities/mesh/manipulation/refineMesh/refineMesh.C

@@ -334,7 +334,7 @@ int main(int argc, char *argv[])
                 "refineMeshDict",
                 runTime.system(),
                 mesh,
-                IOobject::MUST_READ,
+                IOobject::MUST_READ_IF_MODIFIED,
                 IOobject::NO_WRITE
             )
         );

applications/utilities/mesh/manipulation/renumberMesh/renumberMesh.C

@@ -483,7 +483,7 @@ int main(int argc, char *argv[])
                 "decomposeParDict",
                 runTime.system(),
                 mesh,
-                IOobject::MUST_READ,
+                IOobject::MUST_READ_IF_MODIFIED,
                 IOobject::NO_WRITE
             )
         );

applications/utilities/mesh/manipulation/stitchMesh/stitchMesh.C

@@ -298,7 +298,7 @@ int main(int argc, char *argv[])
                 args.options()["toleranceDict"],
                 runTime.constant(),
                 mesh,
-                IOobject::MUST_READ,
+                IOobject::MUST_READ_IF_MODIFIED,
                 IOobject::NO_WRITE
             )
         );

applications/utilities/mesh/manipulation/topoSet/topoSet.C

@@ -83,7 +83,7 @@ int main(int argc, char *argv[])
             (
                 dictPath,
                 mesh,
-                IOobject::MUST_READ,
+                IOobject::MUST_READ_IF_MODIFIED,
                 IOobject::NO_WRITE
             )
           : IOobject
@@ -91,7 +91,7 @@ int main(int argc, char *argv[])
                 dictName,
                 runTime.system(),
                 mesh,
-                IOobject::MUST_READ,
+                IOobject::MUST_READ_IF_MODIFIED,
                 IOobject::NO_WRITE
             )
         )