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Author SHA1 Message Date
Fabio Manganiello
69706eaabe
s/logger/_logger/ in the plugins module. 
The `logger` name may clash with the context of an action, where
`logger` may have been set to something else.
 2023-08-19 13:32:19 +02:00
Fabio Manganiello
1cb686bdab
Updated the inspect plugin to the new manifest utils interface. 2023-08-19 13:31:48 +02:00
Fabio Manganiello
043f303761
s/HttpBackend._DEFAULT_HTTP_PORT/HttpBackend.DEFAULT_HTTP_PORT/g 2023-08-19 13:30:51 +02:00
Fabio Manganiello
dd3a701a2e
Full rewrite of platypush.utils.manifest. 
The new version encapsulates all the utility functions into three
classes - `Manifest`, `Manifests` and `Dependencies`.
 2023-08-19 13:28:40 +02:00
Fabio Manganiello
a8255f3621
Pass the configuration file used by the application to the Alembic process. 
The database settings could also be overridden in the configuration file
besides the command line.

We should therefore pass the path to the runtime configuration file, so
the Alembic process can initialize its configuration from the same file
and use the same settings.
 2023-08-19 13:23:20 +02:00
Fabio Manganiello
1825b492b3
Replaced Config.workdir with Config.get_workdir(). 
Again, Python < 3.9 doesn't like class properties.
 2023-08-19 13:21:24 +02:00
Fabio Manganiello
a8836f95f5
Support explicit workdir parameter override in Config constructor. 2023-08-19 13:15:29 +02:00
Fabio Manganiello
5bc82dfe64
s/Config._cfgfile/Config.config_file/g 2023-08-19 13:13:36 +02:00
Fabio Manganiello
181da63c89
Pass the database engine to the Alembic process as an extra argument. 
If the path of the default database engine is overridden via `--workdir`
option then it won't be visible to the new `python` subprocess spawned
for Alembic.
 2023-08-19 13:02:05 +02:00
Fabio Manganiello
c2b3ec8ce3
Fixed manifest files with outdated formats. 2023-08-19 12:54:33 +02:00
Fabio Manganiello
e463a52435
Use sys.executable rather than 'python' to launch the application. 2023-08-19 12:40:57 +02:00
Fabio Manganiello
0a5fc40dc5
Merge branch 'master' into 276/better-docker 2023-08-18 17:34:56 +02:00
Fabio Manganiello
3236e235ef Merge pull request '278/fix-variable-errors-on-python-3-8' (#279) from 278/fix-variable-errors-on-python-3-8 into master 
Reviewed-on: platypush/platypush#279
 2023-08-18 17:25:08 +02:00
Fabio Manganiello
2cab836bdf
Entity.columns class property replaced by Entity.get_columns method. 
Again, Python < 3.9 doesn't like the combination of `@property` +
`@classmethod`.
 2023-08-18 17:20:53 +02:00
Fabio Manganiello
a9cdff900e
_variable should be an external global function rather than a class property. 
The combination of `@property` + `@classmethod` isn't supported on
Python < 3.9.
 2023-08-18 16:16:47 +02:00
Fabio Manganiello
d0c89f88a8
Fixed parenthesised multi-with statement. 
This syntax is not supported on Python < 3.9, and therefore it should be
broken down as a multi-line statement.
 2023-08-18 16:10:31 +02:00
Fabio Manganiello
ca95490412
Added timeout parameter to requests.get in the rss plugin. 2023-08-18 15:53:30 +02:00
Fabio Manganiello
5dd7345c0b
Sync the latest parse timestamps in main instead of __init__ in rss. 
We should load the latest timestamps from the db when the thread starts
instead of doing it in the constructor.

The constructor may be invoked when the entities engine hasn't been
initialized yet, and result in deadlocks.
 2023-08-18 15:51:11 +02:00
Fabio Manganiello
ec64b0ef8b
Added --device_id command line option. 2023-08-17 23:16:24 +02:00
Fabio Manganiello
ac83b43f98
Support for custom key-value overrides on Config.init. 2023-08-17 22:03:39 +02:00
Fabio Manganiello
657b2cc87d
Create the default configuration file even if --config is supplied but the file doesn't exist. 2023-08-17 11:25:49 +02:00
Fabio Manganiello
afa4de5673
Dockerfile moved to application root 2023-08-17 10:38:21 +02:00
Fabio Manganiello
24b04d9103
s/--config-file/--config/ option in Dockerfile. 2023-08-17 10:35:40 +02:00
Fabio Manganiello
f07b774e75
A better Dockerfile. 2023-08-17 03:04:34 +02:00
Fabio Manganiello
bf7d060b81
Added @ensure_initialized decorator to actions in variable. 
The `variable` plugin may break in the constructor the first time the
application is started.

That's because it tries to initialize the cache of stored variables, but
the local database hasn't yet been initialized.

That's because plugins are registered _before_ the entities engine is
initialized, as the entities engine assumes that it already has plugins
to scan for entities.

Therefore, the initialization of the `variable` plugin's cache should be
lazy (only done upon the first call to `get`/`set` etc.), in order to
prevent deadlock situations where the plugin waits for the engine to
start, but the engine will be initialized only after the plugin is
ready.

And the lazy initialization logic should also ensure that the entities
engine has been properly started (and emit a `TimeoutError` if that's
not the case), in order to prevent race conditions.
 2023-08-17 02:47:30 +02:00
Fabio Manganiello
adfedfa2dd
s/TimeoutError/AssertionError/ if get_entities_engine times out. 2023-08-17 02:36:40 +02:00
Fabio Manganiello
ec2b8da983
Ignore Redis errors when a backend sends an unregister notify event. 
When that happens, it's most likely that the application is already
stopping and the Redis service has already been terminated.
 2023-08-17 01:49:41 +02:00
Fabio Manganiello
3bf068e0b2
The __main__ function should take no arguments. 
setup.py won't pass any arguments to `main()`, so the default entry
point should get them itself from `sys.argv`.
 2023-08-17 01:35:39 +02:00
Fabio Manganiello
a52de0e086
Removed tz dependency. 2023-08-17 00:35:39 +02:00
Fabio Manganiello
e9dbcff1a8
Removed old bin/platypush script. 
It's already been replaced by the setup.py entry point.
 2023-08-16 23:52:54 +02:00
Fabio Manganiello
98e9abde18
Extended manifest files with Python system packages (if available). 
- If a Python optional dependency is available as a system package on
  the target system, try and install it that route rather than pip. It's
  usually faster and it decreases the risk of breaking system packages.

- Added support for apk dependencies in manifest files. This brings the
  number of distros officially supported by all the extensions to four:

  - Alpine
  - Arch
  - Debian
  - Ubuntu
 2023-08-16 22:43:51 +02:00
Fabio Manganiello
c2a17f0d75 Merge pull request '[#272] Support for external stop/restart control on the application' (#273) from 272/external-proc-controller into master 
Reviewed-on: platypush/platypush#273
 2023-08-15 21:34:43 +02:00
Fabio Manganiello
fef6513cc8
Alpine Linux requires the linux-headers package to build psutil. 2023-08-15 11:40:02 +02:00
Fabio Manganiello
00863a176e
Added application plugin. 2023-08-15 11:20:24 +02:00
Fabio Manganiello
f51beb271e
Large refactor + stability fixes for the external process control logic. 2023-08-15 11:12:21 +02:00
Fabio Manganiello
46245e851f
Synchronize with the currently running stop thread (if any) in Backend.wait_stop. 2023-08-15 02:08:47 +02:00
Fabio Manganiello
a8a7ceb2ac
Implemented HttpBackend._stop_workers. 
The Tornado WSGI container won't guarantee the termination of the
spawned workers upon termination, so the code of the backend has to take
care of it and terminate all the children processes of the server
process when it terminates.

This also means that `psutil` is now a required base dependency, as we
need to expand the process subtree under the webserver launcher.
 2023-08-15 00:13:34 +02:00
Fabio Manganiello
04921c759f
Added wait_stop method to the entities engine and cron scheduler. 2023-08-14 23:49:47 +02:00
Fabio Manganiello
ceb9d6d1ba
Removed redundant Backend._get_redis() method. 
It was used only once, and it could easily be replaced by
`platypush.utils.get_redis()`.
 2023-08-14 23:37:38 +02:00
Fabio Manganiello
7157936b87
Added get_remaining_timeout utility function. 2023-08-14 23:17:50 +02:00
Fabio Manganiello
dc1a152433
Added get_default_pid_file utility method. 2023-08-14 10:47:25 +02:00
Fabio Manganiello
c11bc69a66
Handle KeyboardInterrupt and process return code in the main. 2023-08-13 23:55:40 +02:00
Fabio Manganiello
8819a0ed4c
Added CommandStream to the main Application. 
The stream will be used to communicate command messages from the
application to its runner.
 2023-08-13 23:51:21 +02:00
Fabio Manganiello
06111587f7
Added CommandStream class. 
This abstraction is used to write and read commands over a UNIX socket.
 2023-08-13 23:37:51 +02:00
Fabio Manganiello
c89f992867
Added StopCommand and RestartCommand. 2023-08-13 23:36:36 +02:00
Fabio Manganiello
b1f244a812
Added ControllableProcess class. 
This class can be used to easily control the execution of underlying
processes.
 2023-08-13 23:33:08 +02:00
Fabio Manganiello
efef9d7bc0
Added commands module. 2023-08-13 23:21:36 +02:00
Fabio Manganiello
97adc3f775
Moved application argument parser to an external platypush.cli module. 2023-08-13 22:27:16 +02:00
Fabio Manganiello
1819ee75ef
s/Application.stop_app/Application.stop/g 2023-08-13 22:23:15 +02:00
Fabio Manganiello
827b564006
Using a single constant for DEFAULT_REDIS_QUEUE. 
Also, catch `AttributeError` on `self._proc.terminate` in the
`HttpBackend`, since the process may already have been terminated and
set to null by another worker process.
 2023-08-13 22:20:16 +02:00