updating dashboard

dashboard_components/signals_file.py

@@ -0,0 +1,39 @@
+import os
+
+import pandas as pd
+from pandas.errors import EmptyDataError
+
+from dashboard_components.signals_file_base import SignalsFileBase
+from utils import break_file_path
+
+
+class SignalsFile(SignalsFileBase):
+    def __init__(self, csv_path, load=True, plot=None):
+        super().__init__(plot)
+        self.full_csv_path = csv_path
+        self.dir, self.filename, _ = break_file_path(csv_path)
+        if load:
+            self.load()
+            # this helps set the correct x axis
+            self.change_averaging_window(1, force=True)
+
+    def load_csv(self):
+        # load csv and fix sparse data.
+        # csv can be in the middle of being written so we use try - except
+        self.csv = None
+        while self.csv is None:
+            try:
+                self.csv = pd.read_csv(self.full_csv_path)
+                break
+            except EmptyDataError:
+                self.csv = None
+                continue
+        self.csv = self.csv.interpolate()
+        self.csv.fillna(value=0, inplace=True)
+
+        self.csv['Wall-Clock Time'] /= 60.
+
+        self.last_modified = os.path.getmtime(self.full_csv_path)
+
+    def file_was_modified_on_disk(self):
+        return self.last_modified != os.path.getmtime(self.full_csv_path)