Refactor hwconfig.py, using functions to handle each command

Sming/Components/Storage/Tools/hwconfig/hwconfig.py

@@ -20,6 +20,53 @@ def openOutput(path):
     return open(path, 'wb')
 
 
+def handle_validate(args, config, part):
+    # Validate resulting hardware configuration against schema
+    try:
+        from jsonschema import Draft7Validator
+        inst = json.loads(config.to_json())
+        schema = json.load(open(args.expr))
+        v = Draft7Validator(schema)
+        errors = sorted(v.iter_errors(inst), key=lambda e: e.path)
+        if errors != []:
+            for e in errors:
+                critical("%s @ %s" % (e.message, e.path))
+            sys.exit(3)
+    except ImportError as err:
+        critical("\n** WARNING! %s: Cannot validate '%s', please run `make python-requirements **\n\n" % (str(err), args.input))
+
+
+def handle_flashcheck(args, config, part):
+    # Expect list of chunks, such as "0x100000=/out/Esp8266/debug/firmware/spiff_rom.bin 0x200000=custom.bin"
+    list = args.expr.split()
+    if len(list) == 0:
+        raise InputError("No chunks to flash!")
+    for e in list:
+        addr, filename = e.split('=')
+        addr = int(addr, 0)
+        part = config.partitions.find_by_address(config.devices[0], addr)
+        if part is None:
+            raise InputError("No partition contains address 0x%08x" % addr)
+        if part.address != addr:
+            raise InputError("Address 0x%08x is within partition '%s', not at start (0x%08x)" % (addr, part.name, part.address))
+        filesize = os.path.getsize(filename)
+        if filesize > part.size:
+            raise InputError("File '%s' is 0x%08x bytes, too big for partition '%s' (0x%08x bytes)" % (os.path.basename(filename), filesize, part.name, part.size))
+
+
+def handle_partgen(args, config, part):
+    # Generate partition table binary
+    if not args.no_verify:
+        status("Verifying partition table...")
+        config.verify(args.secure)
+    return config.partitions.to_binary(config.devices)
+
+
+def handle_expr(args, config, part):
+    # Evaluate expression against configuration data
+    return str(eval(args.expr)).encode()
+
+
 def main():
     parser = argparse.ArgumentParser(description='Sming hardware configuration utility')
 
@@ -49,53 +96,14 @@ def main():
         config = Config.from_name(args.input)
         partitions = config.partitions
 
-    # Define local so it's available for eval()
+    # Locate any supplied partition by name
+    part = None
     if args.part is not None:
         part = partitions.find_by_name(args.part)
         if part is None:
             return
 
-    if args.command == 'validate':
-        # Validate resulting hardware configuration against schema
-        try:
-            from jsonschema import Draft7Validator
-            inst = json.loads(config.to_json())
-            schema = json.load(open(args.expr))
-            v = Draft7Validator(schema)
-            errors = sorted(v.iter_errors(inst), key=lambda e: e.path)
-            if errors != []:
-                for e in errors:
-                    critical("%s @ %s" % (e.message, e.path))
-                sys.exit(3)
-        except ImportError as err:
-            critical("\n** WARNING! %s: Cannot validate '%s', please run `make python-requirements **\n\n" % (str(err), args.input))
-    elif args.command == 'flashcheck':
-        # Expect list of chunks, such as "0x100000=/out/Esp8266/debug/firmware/spiff_rom.bin 0x200000=custom.bin"
-        list = args.expr.split()
-        if len(list) == 0:
-            raise InputError("No chunks to flash!")
-        for e in list:
-            addr, filename = e.split('=')
-            addr = int(addr, 0)
-            part = config.partitions.find_by_address(config.devices[0], addr)
-            if part is None:
-                raise InputError("No partition contains address 0x%08x" % addr)
-            if part.address != addr:
-                raise InputError("Address 0x%08x is within partition '%s', not at start (0x%08x)" % (addr, part.name, part.address))
-            filesize = os.path.getsize(filename)
-            if filesize > part.size:
-                raise InputError("File '%s' is 0x%08x bytes, too big for partition '%s' (0x%08x bytes)" % (os.path.basename(filename), filesize, part.name, part.size))
-    elif args.command == 'partgen':
-        # Generate partition table binary
-        if not args.no_verify:
-            status("Verifying partition table...")
-            config.verify(args.secure)
-        output = config.partitions.to_binary(config.devices)
-    elif args.command == 'expr':
-        # Evaluate expression against configuration data
-        output = str(eval(args.expr)).encode()
-    else:
-        raise InputError('Unknown command: %s' % args.command)
+    output = globals()['handle_' + args.command](args, config, part)
 
     if output is not None:
         openOutput(args.output).write(output)