Add configuration (12factor.net)

Author: rafaelhenrique

.travis.yml

@@ -9,5 +9,5 @@ install:
   - pip install -r requirements.txt
 
 script:
-  - py.test tvseries/*
+  - py.test .
 

contrib/env-sample

@@ -0,0 +1,3 @@
+SECRET_KEY=your_secret_here_change_this_phrase
+SERVER_NAME=your_server_name_here_change_this_phrase
+DATABASE_URI=postgresql://username:password@address:port/database_name

contrib/env-test

@@ -0,0 +1,3 @@
+SECRET_KEY=your_secret_here_change_this_phrase
+SERVER_NAME=your_server_name_here_change_this_phrase
+DATABASE_URI=sqlite:///tvseries-test.sqlite3

contrib/generate_secret_key.py

@@ -0,0 +1,25 @@
+import random
+
+"""
+Some parts of this code were extracted from Django framework
+
+https://github.com/django/django/blob/master/django/utils/crypto.py
+
+"""
+
+random = random.SystemRandom()
+
+
+def get_random_string(length=12,
+                      allowed_chars='abcdefghijklmnopqrstuvwxyz'
+                                    'ABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789'):
+    """
+    Returns a securely generated random string.
+    The default length of 12 with the a-z, A-Z, 0-9 character set returns
+    a 71-bit value. log_2((26+26+10)^12) =~ 71 bits
+    """
+    return ''.join(random.choice(allowed_chars) for i in range(length))
+
+
+chars = 'abcdefghijklmnopqrstuvwxyz0123456789!@#$%^&*(-_=+)'
+print(get_random_string(50, chars))

requirements.txt

@@ -2,3 +2,4 @@ Flask==0.11.1
 Flask-Script==2.0.5
 Flask-SQLAlchemy==2.1
 pytest-flask==0.10.0
+python-decouple==3.0

tvseries/__init__.py

@@ -1,8 +1,11 @@
 from flask import Flask
 from flask_sqlalchemy import SQLAlchemy
 
+from tvseries import config
+
 app = Flask(__name__)
-app.config['SQLALCHEMY_DATABASE_URI'] = 'sqlite:///tvseries.sqlite3'
+app.config.from_object(config.DevelopmentConfig)
+
 db = SQLAlchemy(app)
 
 from tvseries.core import views  # noqa

tvseries/config.py

@@ -0,0 +1,25 @@
+from decouple import config
+
+
+class BaseConfig(object):
+    SITE_NAME = 'Flask Tutorial'
+    SECRET_KEY = config('SECRET_KEY')
+    SERVER_NAME = config('SERVER_NAME')
+    SQLALCHEMY_DATABASE_URI = config('DATABASE_URI')
+    DEBUG = False
+    TESTING = False
+
+
+class DevelopmentConfig(BaseConfig):
+    DEBUG = True
+
+
+class TestConfig(BaseConfig):
+    SECRET_KEY = 'teste123'
+    SERVER_NAME = '127.0.0.1:5000'
+    SQLALCHEMY_DATABASE_URI = 'sqlite:///tvseries-test.sqlite3'
+    TESTING = True
+
+
+class ProductionConfig(BaseConfig):
+    pass

tvseries/tests/test_core.py

@@ -1,6 +1,7 @@
 import pytest
 
 from tvseries.core.models import TVSerie
+from tvseries.config import TestConfig
 
 
 @pytest.mark.usefixtures('client_class')
@@ -9,6 +10,7 @@ class TestCore:
     @pytest.fixture
     def app(self):
         from tvseries import app
+        app.config.from_object(TestConfig)
         return app
 
     def test_get_home(self, db):