Support for Eagle / Fusion 360 Electronics

InteractiveHtmlBom/ecad/__init__.py

@@ -6,7 +6,15 @@ def get_parser_by_extension(file_name, config, logger):
     if ext == '.kicad_pcb':
         return get_kicad_parser(file_name, config, logger)
     elif ext == '.json':
-        return get_easyeda_parser(file_name, config, logger)
+        """.json file may be from EasyEDA or Eagle - look for '_source' attribute in the file to disambiguate"""
+        import io
+        import json
+        with io.open(file_name, 'r') as f:
+            obj = json.load(f)
+        if '_source' in obj and obj['_source'] == 'eagle':
+            return get_eagle_parser(file_name, config, logger)
+        else:
+            return get_easyeda_parser(file_name, config, logger)
     else:
         return None
 
@@ -19,3 +27,8 @@ def get_kicad_parser(file_name, config, logger, board=None):
 def get_easyeda_parser(file_name, config, logger):
     from .easyeda import EasyEdaParser
     return EasyEdaParser(file_name, config, logger)
+
+
+def get_eagle_parser(file_name, config, logger):
+    from .eagle import EagleParser
+    return EagleParser(file_name, config, logger)

InteractiveHtmlBom/ecad/eagle.py

@@ -0,0 +1,45 @@
+import io
+
+from .common import EcadParser, Component
+
+
+class EagleParser(EcadParser):
+    import json
+
+    class EagleJsonDecoder(json.JSONDecoder):
+        def __init__(self, *args, **kwargs):
+            import json
+            json.JSONDecoder.__init__(self, object_hook=self.object_hook, *args, **kwargs)
+
+        def object_hook(self, obj):
+            if '_type' in obj and obj['_type'] == 'InteractiveHtmlBom.ecad.common.Component':
+                return [Component(c['ref'], c['val'], c['footprint'], c['layer'], c['attr']) for c in obj['object']]
+            else:
+                return obj
+
+    def get_eagle_pcb(self):
+        import json
+        with io.open(self.file_name, 'r') as f:
+            return json.load(f, cls=self.EagleJsonDecoder)
+
+    def _verify(self, pcb):
+
+        """Spot check the pcb object."""
+        if 'pcbdata' not in pcb:
+            self.logger.error('No pcbdata object.')
+            return False
+
+        if 'components' not in pcb:
+            self.logger.error('No components object.')
+            return False
+
+        return True
+
+    def parse(self):
+        pcb = self.get_eagle_pcb()
+        if not self._verify(pcb):
+            self.logger.error('File ' + self.file_name +
+                              ' does not appear to be valid Eagle json file.')
+            return None, None
+
+        return pcb['pcbdata'], pcb['components']