Handle different start and end times of components

• connect and _connect get an argument start_time that is to be passed to try_connect instead of self.time
• Connect helper pushes data twice: once for start_time and once for info.time (if it is not equal to start_time)
• Starting time can be passed to component's run(), and is auto-determined if not provided

Basically, only the changes in interfaces.py, schedule.py, component.py and connect_helper.py are of interest. The rest is fixes for the breaking change to the interface.

Fixes #4 (closed)

src/finam/tools/connect_helper.py

@@ -7,7 +7,7 @@ import xarray as xr
 
 from finam.interfaces import ComponentStatus, Loggable
 
-from ..data.tools import Info, strip_time
+from ..data.tools import Info, assign_time
 from ..errors import FinamNoDataError, FinamTimeError
 from ..tools.log_helper import ErrorLogger
 
@@ -528,9 +528,10 @@ class ConnectHelper(Loggable):
             out.push_data(data, None)
         elif info_time != time:
             if isinstance(data, xr.DataArray):
-                data_plain = strip_time(data)
-                out.push_data(data_plain, time)
-                out.push_data(copy.copy(data_plain), info_time)
+                data_1 = assign_time(data, time)
+                out.push_data(data_1, time)
+                data_2 = assign_time(data, info_time)
+                out.push_data(copy.copy(data_2), info_time)
             else:
                 out.push_data(data, time)
                 out.push_data(copy.copy(data), info_time)