[core] change Attributes declaration on Node description

Inputs and outputs Attributes are now declared in two separate lists
* no more isOutput field on Attribute description
* guarantee attributes order (was not the case in Python2 with class attributes)
* Attribute's name is now part of its description

Note: for now, input and output Attributes are still stored in a single model inside a Graph.

meshroom/nodes/aliceVision/PrepareDenseScene.py

@@ -6,42 +6,49 @@ class PrepareDenseScene(desc.CommandLineNode):
     internalFolder = '{cache}/{nodeType}/{uid0}/'
     commandLine = 'aliceVision_prepareDenseScene {allParams}'
 
-    input = desc.File(
+    inputs = [
+        desc.File(
+            name='input',
             label='Input',
             description='''SfMData file.''',
             value='',
             uid=[0],
-            isOutput=False,
-            )
-    mvsConfig = desc.File(
-            label='MVS Configuration file',
-            description='',
-            value='{cache}/{nodeType}/{uid0}/_tmp_scale{scaleValue}/mvs.ini',
-            uid=[0],
-            isOutput=True,
-            group='',  # not a command line arg
-            )
-
-    output = desc.File(
-            label='Output',
-            description='''Output directory.''',
-            value='{cache}/{nodeType}/{uid0}/',
-            uid=[],
-            isOutput=True,
-            )
-    scale = desc.ChoiceParam(
+        ),
+        desc.ChoiceParam(
+            name='scale',
             label='Scale',
             description='''Image downscale factor.''',
             value=2,
             values=[1, 2, 4, 8, 16],
             exclusive=True,
             uid=[0],
-            )
-    verboseLevel = desc.ChoiceParam(
+        ),
+        desc.ChoiceParam(
+            name='verboseLevel',
             label='Verbose Level',
             description='''verbosity level (fatal, error, warning, info, debug, trace).''',
             value='info',
             values=['fatal', 'error', 'warning', 'info', 'debug', 'trace'],
             exclusive=True,
             uid=[0],
-            )
+        ),
+    ]
+
+    outputs = [
+        desc.File(
+            name='ini',
+            label='MVS Configuration file',
+            description='',
+            value='{cache}/{nodeType}/{uid0}/_tmp_scale{scaleValue}/mvs.ini',
+            uid=[0],
+            group='',  # not a command line arg
+        ),
+
+        desc.File(
+            name='output',
+            label='Output',
+            description='''Output directory.''',
+            value='{cache}/{nodeType}/{uid0}/',
+            uid=[],
+        )
+    ]