Andrew Rowson 770eeaf82f Encode prometheus metric names per the prom spec (#26639) ...

Referencing issue #26418.

Prometheus metric names can only contain chars a-zA-Z0-9, : and _
(https://prometheus.io/docs/concepts/data_model/#metric-names-and-labels).

HA currently generates invalid prometheus names, e.g. if the unit for a
sensor is a non-ASCII character containing  ° or μ. To resolve, we need
to sanitize the name before creating, replacing non-valid characters
with a valid representation. In this case, I've used
"u{unicode-hex-code}".

Also updated the test case to make sure that the ° case is handled.

2019-09-19 12:51:49 +02:00

..

__init__.py

Move components to folders (#20774)

2019-02-05 19:31:15 -08:00

test_init.py

Encode prometheus metric names per the prom spec (#26639)

2019-09-19 12:51:49 +02:00