Support automatic reload on file change

[hugapi]

Support automatic reload on file change

[prashnts]

In a recent project, I'd needed needed both Auto Reload and Static file serving capabilities.
Using hug, this is the solution I came up with.

• Use static for a WSGI compatible static file handling.
• Write the API as usual using hug.
• Use pecan_mount to mount __hug__ and static to a single WSGI point.
• Run this with gunicorn's Auto Reload turned on.

And there, a quick and easy solution. 😆

Here's a snippet in case anybody's interested.

import hug
import pecan_mount
import static

@hug.get('/', versions=1)
def get_root():
  return True

# Mount Hug at `/api` and static files at '/'
pecan_mount.tree.graft(__hug_wsgi__, '/api')
pecan_mount.tree.graft(static.Cling("/path/to/static/root"), '/')

app = pecan_mount.tree

Running with gunicorn: $ gunicorn module:app --reload

I'm looking forward to version 3, though!

[timothycrosley]

Closing this as this feature is now completed in development and ready for the next release.

Thanks!

~Timothy

[arthurk]

Here's a recent discussion about auto-reloading on the django-developers mailing list: https://groups.google.com/forum/#!topic/django-developers/voXNIDdDcpU. It has a few good ideas on how to improve Django's auto-reloading, but it might be useful for Hug too

[timothycrosley]

@arthurk, I think that's super helpful as we think about how to implement hug's solution. Thanks for finding and sharing!

~Timothy

[sloria]

There is a WIP PR for a debug server in falcon: falconry/falcon#517

[timothycrosley]

@sloria thanks for linking! Hopefully will be able to get this in for the 2.0.0 release :)

[stavxyz]

FWIW, here's a link to the relevant code in the latest release of bottle:

https://github.com/bottlepy/bottle/blob/0.12.9/bottle.py#L3131-L3169
https://github.com/bottlepy/bottle/blob/0.12.9/bottle.py#L3109-L3115