logging is now screenless too - printing to rcp printer.

screenless/bureau/bureau.py

@@ -56,6 +56,19 @@ def add_api(apistr, name=""):
     return decorator
 
 
+class LogPrinter(logging.Handler):
+    """
+    LogPrinter prints logs on a receipt printer for screenless debugging.
+    """
+    def emit(self, record):
+        prn = printer.Usb(0x416, 0x5011, in_ep=0x81, out_ep=0x03)
+        msg = self.format(record)
+        text = textwrap.fill(msg, width=48)
+        text += "\r\n" * 4
+        prn.text(text)
+        prn.cut()
+
+
 class Bureau(object):
     """ Bureau is a base class that implements standard methods for
         inter-bureau communication, IO, registration and some convenient stuff
@@ -85,14 +98,22 @@ class Bureau(object):
             os.mkdir(basepath)
         os.chdir(basepath)
 
+        self.load_config()
+
         # setup log file
-        # TODO: make log level globally and bureau-specific via config
         # TODO: custom handler to print errors to small printer
+        if hasattr(self.config, "debug"):
+            if self.config.debug:
+                log_level = logging.DEBUG
+            else:
+                log_level = logging.ERROR
+        else:
+            log_level = logging.ERROR
         logfile = os.path.join(basepath, self.prefix + ".log")
-        logging.basicConfig(filename=logfile, level=logging.DEBUG)
+        logging.basicConfig(filename=logfile, level=log_level)
         self.log = logging.getLogger(self.prefix)
-
-        self.load_config()
+        log_printer = LogPrinter()
+        self.log.addHandler(log_printer)
 
         # setup a dir to store files and data
         self.datadir = os.path.join(basepath, self.prefix)