Based on that question, I was talking about python_script.
Sorry if @mattlward wasn’t, I’ve probably caused mass confusion.
Works great! Thanks for sharing.
hmm, got this in my sensors file:
- platform: filesize
file_paths:
- /config/home-assistant_v2.db
- /config/home-assistant.log
and your cc in the /config/custom_components/sensor directory.
2018-02-06 20:03:18 ERROR (MainThread) [homeassistant.loader] Unable to find component sensor.filesize
No sensor showing up. What am I doing wrong? Hassio 0.62.1 here.
Cheers,
Marius
That’s odd. Try rebooting the pi
nevermind, please ignore. feel embarrassed…
named it file_size.py…
showing up nicely now (besides the ‘no state history found’-issue of hassio 62.1)
Nice!
1 Like
So… it is not working for me. I have my config in multiple directories and I have a feeling that I need to do and include in my configuration.yaml file…?
Error:
ERROR (MainThread) [homeassistant.loader] Unable to find component sensor.filesize
My sensor entry in my included folder:
- platform: filesize
file_paths:
- /config/home-assistant_v2.db
And the code is in /config/custom_components/sensor filesize.py. Do I need to tell Hassio to include the custom component directory some how? I also set the directories and file to 777 incase it was a permissions problem.
So, I now have my directory structure like it wants, but the load pukes! I am running 62.1 on a Hassio Pi.
2018-02-06 22:07:02 ERROR (MainThread) [homeassistant.core] Error doing job: Task exception was never retrieved
Traceback (most recent call last):
File "/usr/lib/python3.6/asyncio/tasks.py", line 182, in _step
result = coro.throw(exc)
File "/usr/lib/python3.6/site-packages/homeassistant/setup.py", line 60, in async_setup_component
return (yield from task)
File "/usr/lib/python3.6/asyncio/futures.py", line 332, in __iter__
yield self # This tells Task to wait for completion.
File "/usr/lib/python3.6/asyncio/tasks.py", line 250, in _wakeup
future.result()
File "/usr/lib/python3.6/asyncio/futures.py", line 245, in result
raise self._exception
File "/usr/lib/python3.6/asyncio/tasks.py", line 180, in _step
result = coro.send(None)
File "/usr/lib/python3.6/site-packages/homeassistant/setup.py", line 159, in _async_setup_component
conf_util.async_process_component_config(hass, config, domain)
File "/usr/lib/python3.6/site-packages/homeassistant/config.py", line 624, in async_process_component_config
platform = get_platform(domain, p_name)
File "/usr/lib/python3.6/site-packages/homeassistant/loader.py", line 104, in get_platform
return get_component(PLATFORM_FORMAT.format(domain, platform))
File "/usr/lib/python3.6/site-packages/homeassistant/loader.py", line 142, in get_component
module = importlib.import_module(path)
File "/usr/lib/python3.6/importlib/__init__.py", line 126, in import_module
return _bootstrap._gcd_import(name[level:], package, level)
File "<frozen importlib._bootstrap>", line 994, in _gcd_import
File "<frozen importlib._bootstrap>", line 971, in _find_and_load
File "<frozen importlib._bootstrap>", line 955, in _find_and_load_unlocked
File "<frozen importlib._bootstrap>", line 665, in _load_unlocked
File "<frozen importlib._bootstrap_external>", line 674, in exec_module
File "<frozen importlib._bootstrap_external>", line 781, in get_code
File "<frozen importlib._bootstrap_external>", line 741, in source_to_code
File "<frozen importlib._bootstrap>", line 219, in _call_with_frames_removed
File "/config/custom_components/sensor/filesize.py", line 93
return self._unit_of_measurement
^
SyntaxError: 'return' outside function
I got it! I could not get firefox to DL the .py file and had to cut and paste it and it spaced the last line wrongly.
Great work, Thanks!
1 Like
Since this is a generic component of great purpose, I suggest it is included in the core components. Do you mind submitting a PR?
@rtvb Already submitted PR but could use some assistance with the unit test
1 Like
Running hass.io 0.63.2 I get
2018-02-16 11:22:51 ERROR (SyncWorker_11) [custom_components.sensor.filesize] Filepath /config/home-assistant_v2.db is not valid or allowed
The filename looks good to me. Is this a permissions issue? What else could be wrong?
Add to whitelist
1 Like
Tried that. This doesn’t seem to work. Same error message. Other components are able to read the /config path with my Hass.io 0.63.2 on a Raspberry Pi 2B. So something else is probably wrong.
This is my current seeminly valid (packaged) setup:
system.yaml
homeassistant:
whitelist_external_dirs:
- /config
sensor:
- platform: filesize
file_paths:
- /config/home-assistant_v2.db
For the purpose of this issue I have also tested some other files. The also growing in use log file, a static configuration file and a non-existent file, and an existing empty dummy file in a different, not explicitly whitelisted path:
homeassistant:
whitelist_external_dirs:
- /config
sensor:
- platform: filesize
file_paths:
- /config/home-assistant_v2.db
- /config/home-assistant.log
- /config/configuration.yaml
- /config/notfound.txt
- /share/empty.txt
This raises an error for the file notfound.txt.
2018-02-16 15:00:33 ERROR (MainThread) [homeassistant.config] Invalid config for [sensor.filesize]: not a file @ data['file_paths'][3]. Got '/config/notfound.txt'. (See ?, line ?). Please check the docs at https://home-assistant.io/components/sensor.filesize/
I expected a warning for the non-existing file, but not that the component would not load. So I removed that file and tried again:
homeassistant:
whitelist_external_dirs:
- /config
sensor:
- platform: filesize
file_paths:
- /config/home-assistant_v2.db
- /config/home-assistant.log
- /config/configuration.yaml
# - /config/notfound.txt
- /share/empty.txt
The component loads, and again I see the error for the .db file. But ONLY for that file. The other 2 files do not show errors in the logs. And NO sensors are created.
You asked for some unit testing, here it is. 
Still no succes 
I found it. 
Whitelisting is required. I have a packaged setup. It appears that the whitelist variable can only be used in configuration.yaml and not inside a package file.
For the record, my current setup is:
configuration.yaml
homeassistant:
packages: !include_dir_named packages
whitelist_external_dirs:
- /config
# etc.
packages/system.yaml
sensor:
- platform: filesize
file_paths:
- /config/home-assistant_v2.db
2 Likes
White_list definitely requires improved documentation
1 Like
If anyone can help advise on the unit test I would be very grateful:
I was wondering why files in my config folder need to be whitelisted. Some other components (e.g. http) can access files. Is this because this still is a custom component?
Those components probably predate the requirement for whitelisting. This is submitted for inclusion as a full component
Have you succeeded in the meantime? I used this script and it worked:
- platform: filesize
name: Filesize Database
file_paths:
- /home/homeassistant/.homeassistant/home-assistant_v2.db
who are you asking?