Remote webpack stats

README.md

@@ -129,6 +129,15 @@ If the bundle generates a file called `main-cf4b5fab6e00a404e0c7.js` and your ST
 <br>
 
 #### STATS_FILE
+
+`STATS_FILE` is the URL or filesystem path to the file generated by `webpack-bundle-tracker` plugin. If you initialize `webpack-bundle-tracker` plugin like this
+
+```javascript
+new BundleTracker({filename: './webpack-stats.json'})
+```
+
+If your webpack config is located at `/home/src/webpack.config.js`, then the value of `STATS_FILE` should be `/home/src/webpack-stats.json`.
+
 ```python
 WEBPACK_LOADER = {
  'DEFAULT': {
@@ -137,13 +146,23 @@ WEBPACK_LOADER = {
 }
 ```
 
-`STATS_FILE` is the filesystem path to the file generated by `webpack-bundle-tracker` plugin. If you initialize `webpack-bundle-tracker` plugin like this
+- or -
 
-```javascript
-new BundleTracker({filename: './webpack-stats.json'})
-```
+If your webpack config is located at `/home/src/webpack.config.js`, and you have an http server serving the stats file as json at `127.0.0.1:3000/stats`, then the value of `STATS_FILE` should be `http://127.0.0.1:3000/stats`
+
+`STATS_FILE_TIMEOUT` should be the maximum amount of time python should wait ebfore cancelling trying to read the stats file over TCP.
+
+`STATS_FILE_SECRET_KEY` should be the value of the `SECRET_KEY` request header that is sent with the stats file read request. This is used by the server to validate the request.
 
-and your webpack config is located at `/home/src/webpack.config.js`, then the value of `STATS_FILE` should be `/home/src/webpack-stats.json`
+```python
+WEBPACK_LOADER = {
+ 'DEFAULT': {
+ 'STATS_FILE': "http://127.0.0.1:3000/stats",
+ 'STATS_FILE_TIMEOUT': 10.0,
+ 'STATS_FILE_SECRET_KEY': 'A_VERY_SECRET_KEY'
+ }
+}
+```
 
 <br>
 

setup.py

@@ -8,7 +8,8 @@ def rel(*parts):
  '''returns the relative path to a file wrt to the current directory'''
  return os.path.abspath(os.path.join(os.path.dirname(__file__), *parts))
 
-README = open('README.md', 'r').read()
+with open("README.md", "r", encoding="utf-8") as f:
+ README = f.read()
 
 with open(rel('webpack_loader', '__init__.py')) as handler:
  INIT_PY = handler.read()
@@ -27,6 +28,9 @@ def rel(*parts):
  author_email = 'hello@owaislone.org',
  download_url = 'https://github.com/owais/django-webpack-loader/tarball/{0}'.format(VERSION),
  url = 'https://github.com/owais/django-webpack-loader', # use the URL to the github repo
+ install_requires = [
+ "requests",
+ ],
  keywords = ['django', 'webpack', 'assets'], # arbitrary keywords
  classifiers = [
  'Programming Language :: Python :: 2.6',

tests/app/tests/test_webpack.py

@@ -18,7 +18,6 @@
 )
 from webpack_loader.utils import get_loader
 
-
 BUNDLE_PATH = os.path.join(settings.BASE_DIR, 'assets/bundles/')
 DEFAULT_CONFIG = 'DEFAULT'
 

webpack_loader/__init__.py

@@ -1,4 +1,4 @@
 __author__ = 'Owais Lone'
-__version__ = '0.6.0'
+__version__ = '0.6.1'
 
 default_app_config = 'webpack_loader.apps.WebpackLoaderConfig'

webpack_loader/config.py

@@ -11,6 +11,8 @@
  'CACHE': not settings.DEBUG,
  'BUNDLE_DIR_NAME': 'webpack_bundles/',
  'STATS_FILE': 'webpack-stats.json',
+ 'STATS_FILE_TIMEOUT': 3.0,
+ 'STATS_FILE_SECRET_KEY': 'THIS_IS_A_REALLY_SECRET_KEY',
  # FIXME: Explore usage of fsnotify
  'POLL_INTERVAL': 0.1,
  'TIMEOUT': None,

webpack_loader/loader.py

@@ -1,6 +1,7 @@
 import json
 import time
 from io import open
+import requests
 
 from django.conf import settings
 from django.contrib.staticfiles.storage import staticfiles_storage
@@ -22,14 +23,30 @@ def __init__(self, name='DEFAULT'):
  self.config = load_config(self.name)
 
  def _load_assets(self):
- try:
- with open(self.config['STATS_FILE'], encoding="utf-8") as f:
- return json.load(f)
- except IOError:
- raise IOError(
- 'Error reading {0}. Are you sure webpack has generated '
- 'the file and the path is correct?'.format(
- self.config['STATS_FILE']))
+ stats_file = self.config["STATS_FILE"]
+ if stats_file.startswith(("http://", "https://")):
+ timeout = float(self.config["STATS_FILE_TIMEOUT"])
+ try:
+ response = requests.get(stats_file, timeout=timeout, headers={
+ "SECRET_KEY": self.config["STATS_FILE_SECRET_KEY"],
+ })
+ status_code = response.status_code
+ if status_code != 200:
+ raise requests.HTTPError("{} - {}: {}".format(
+ stats_file, status_code, response.reason))
+ return response.json()
+ except requests.Timeout:
+ raise requests.Timeout(
+ "Failed to connect in {} seconds. Are you sure that a "
+ "server is running at {}?".format(timeout, stats_file))
+ else:
+ try:
+ with open(stats_file, encoding="utf-8") as f:
+ return json.load(f)
+ except IOError:
+ raise IOError(
+ 'Error reading {0}. Are you sure webpack has generated '
+ 'the file and the path is correct?'.format(stats_file))
 
  def get_assets(self):
  if self.config['CACHE']: