Import blockdag into xml2palette and create signature for palette

.github/workflows/create-palettes.yml

@@ -23,6 +23,7 @@ jobs:
       - name: Install system dependencies
         run: |
           sudo apt-get update && sudo apt-get install -y doxygen xsltproc
+          pip install BlockDAG
 
       - name: Configure git
         run: |

tools/xml2palette/xml2palette.py

@@ -14,6 +14,8 @@
 import math
 from enum import Enum
 
+from blockdag import build_block_dag
+
 next_key = -1
 
 # NOTE: not sure if all of these are actually required
@@ -73,6 +75,14 @@
     "OutputPort"
 ]
 
+BLOCKDAG_DATA_FIELDS = [
+    "inputPorts",
+    "outputPorts",
+    "applicationArgs",
+    "category",
+    "fields"
+]
+
 class Language(Enum):
     UNKNOWN = 0
     C = 1
@@ -542,7 +552,7 @@ def create_palette_node_from_params(params):
     )
 
 
-def write_palette_json(outputfile, nodes, gitrepo, version):
+def write_palette_json(outputfile, nodes, gitrepo, version, signature):
     palette = {
         "modelData": {
             "fileType": "palette",
@@ -553,6 +563,7 @@ def write_palette_json(outputfile, nodes, gitrepo, version):
             "filePath": outputfile,
             "sha": version,
             "git_url": gitrepo,
+            "signature": signature
         },
         "nodeDataArray": nodes,
         "linkDataArray": [],
@@ -1052,9 +1063,11 @@ def params_to_nodes(params):
                     if not alreadyPresent:
                         nodes.append(n)
 
+    # add signature for whole palette using BlockDAG
+    palette_signature = build_block_dag(nodes, [], data_fields=BLOCKDAG_DATA_FIELDS)
 
     # write the output json file
-    write_palette_json(outputfile, nodes, gitrepo, version)
+    write_palette_json(outputfile, nodes, gitrepo, version, palette_signature)
     logging.info("Wrote " + str(len(nodes)) + " component(s)")
 
     # cleanup the output directory