Refactor how the initial .env is created

.gitignore

@@ -1,7 +1,7 @@
 **/.venv
 *console.log
 .coverage
-.env
+.env*
 .idea/
 .mypy_cache/**/*
 .pytest_cache/**/*

config/settings/_base.py

@@ -1,41 +1,71 @@
 import contextlib
 import socket
+from functools import partial
+from pathlib import Path
 
-import environs
+from django.utils.crypto import get_random_string
 
-env = environs.Env()
+from django_envtools import Env
 
 """
 Django settings for config project.
 
 For more information on this file, see
-https://docs.djangoproject.com/en/4.2/topics/settings/
+https://docs.djangoproject.com/en/dev/topics/settings/
 
 For the full list of settings and their values, see
-https://docs.djangoproject.com/en/4.2/ref/settings/
+https://docs.djangoproject.com/en/dev/ref/settings/
 """
 
-BASE_DIR = environs.Path(__file__).parent.parent.parent  # type: ignore
+
+get_secret_key = partial(get_random_string, length=50, allowed_chars="abcdefghijklmnopqrstuvwxyz0123456789!@%^&*-_=")
+
+
+BASE_DIR = Path(__file__).parent.parent.parent  # type: ignore
+
+env = Env()
 
 READ_DOT_ENV_FILE = env.bool("READ_DOT_ENV_FILE", default=True)
 
 if READ_DOT_ENV_FILE is True:
     env.read_env(str(BASE_DIR.joinpath(".env")))
 
 # Quick-start development settings - unsuitable for production
-# See https://docs.djangoproject.com/en/4.2/howto/deployment/checklist/
+# See https://docs.djangoproject.com/en/dev/howto/deployment/checklist/
 
 # SECURITY WARNING: keep the secret key used in production secret!
-SECRET_KEY = env("SECRET_KEY")
+SECRET_KEY = env.str(
+    "SECRET_KEY",
+    help_text="Django's secret key, see"
+    "https://docs.djangoproject.com/en/dev/ref/settings/#secret-key for more information",
+    initial_func=get_secret_key,
+)
 
 # SECURITY WARNING: don't run with debug turned on in production!
-DEBUG = env.bool("DEBUG", default=False)
+DEBUG = env.bool("DEBUG", default=False, initial="on", help_text="Set to `on` to enable debugging")
+
+ALLOWED_HOSTS = env.list(
+    "ALLOWED_HOSTS",
+    default=[],
+    help_text="List of allowed hosts (e.g., `127.0.0.1,example.com`), see "
+    "https://docs.djangoproject.com/en/dev/ref/settings/#allowed-hosts for more information",
+)
 
-ALLOWED_HOSTS: list[str] = env.list("ALLOWED_HOSTS", default=[])
-INTERNAL_IPS = env.list("INTERNAL_IPS", default=["127.0.0.1"])
+INTERNAL_IPS = env.list(
+    "INTERNAL_IPS",
+    default=["127.0.0.1"],
+    initial="127.0.0.1,0.0.0.0",
+    help_text="IPs that are allowed to use debug() (e.g., `127.0.0.1,example.com`), see "
+    "https://docs.djangoproject.com/en/dev/ref/settings/#internal-ips for more information",
+)
 
 # Get the IP to use for Django Debug Toolbar when developing with docker
-if env.bool("USE_DOCKER", default=False) is True:
+if (
+    env.bool(
+        "USE_DOCKER", default=False, help_text="Boolean used to add docker's internal ip to the `INTERNAL_IPS` setting"
+    )
+    is True
+):
     ip = socket.gethostbyname(socket.gethostname())
     INTERNAL_IPS += [ip[:-1] + "1"]
 
@@ -56,6 +86,7 @@
     "allauth.account",
     "crispy_forms",
     "crispy_bootstrap5",
+    "django_envtools",
     "storages",
 ]
 
@@ -92,23 +123,35 @@
     },
 ]
 
-WSGI_APPLICATION = env("WSGI_APPLICATION", default="config.wsgi.application")
-DB_SSL_REQUIRED = env.bool("DB_SSL_REQUIRED", default=not DEBUG)
+WSGI_APPLICATION = env.str(
+    "WSGI_APPLICATION",
+    default="config.wsgi.application",
+    help_text="WSGI application callable, see https://docs.djangoproject.com/en/dev/ref/settings/#wsgi-application for "
+    "more information",
+)
+DB_SSL_REQUIRED = env.bool(
+    "DB_SSL_REQUIRED",
+    default=not DEBUG,
+    help_text="Set to `on` to require SSL for database connections, default is `off` when DEBUG is `on`",
+)
 
-# Database
-# See https://github.com/jacobian/dj-database-url for more examples
 DATABASES = {
     "default": env.dj_db_url(
-        "DATABASE_URL", default="postgres://postgres@postgres/postgres", ssl_require=DB_SSL_REQUIRED
+        "DATABASE_URL",
+        default="postgres://postgres@postgres/postgres",
+        ssl_require=DB_SSL_REQUIRED,
+        initial="postgres://${POSTGRES_USER}:${POSTGRES_PASSWORD}@db:5432/${POSTGRES_DB}",
+        help_text="Database URL for the default database, see https://github.com/jacobian/dj-database-url for "
+        "more examples",
     )
 }
 
 # Custom User Model
-# https://docs.djangoproject.com/en/4.2/topics/auth/customizing/#substituting-a-custom-user-model
+# https://docs.djangoproject.com/en/dev/topics/auth/customizing/#substituting-a-custom-user-model
 AUTH_USER_MODEL = "accounts.User"
 
 # Password validation
-# https://docs.djangoproject.com/en/4.2/ref/settings/#auth-password-validators
+# https://docs.djangoproject.com/en/dev/ref/settings/#auth-password-validators
 
 AUTH_PASSWORD_VALIDATORS = [
     {
@@ -127,7 +170,7 @@
 
 
 # Internationalization
-# https://docs.djangoproject.com/en/4.2/topics/i18n/
+# https://docs.djangoproject.com/en/dev/topics/i18n/
 
 LANGUAGE_CODE = "en-us"
 
@@ -140,30 +183,42 @@
 
 
 # Static files (CSS, JavaScript, Images)
-# https://docs.djangoproject.com/en/4.2/howto/static-files/
+# https://docs.djangoproject.com/en/dev/howto/static-files/
 
 STATICFILES_FINDERS = (
     "django.contrib.staticfiles.finders.FileSystemFinder",
     "django.contrib.staticfiles.finders.AppDirectoriesFinder",
 )
 
+DEFAULT_FILE_STORAGE = env.str(
+    "DEFAULT_FILE_STORAGE",
+    default="django.core.files.storage.FileSystemStorage",
+    help_text="Default file storage backend, see https://docs.djangoproject.com/en/dev/ref/settings/#storages for "
+    "more information",
+)
+STATICFILES_STORAGE = env.str(
+    "DEFAULT_FILE_STORAGE",
+    default="django.core.files.storage.FileSystemStorage",
+    help_text="Default file storage for staticfiles, see https://docs.djangoproject.com/en/dev/ref/settings/#storages "
+    "for more information",
+)
 STORAGES = {
     "default": {
-        "BACKEND": env("DEFAULT_FILE_STORAGE", default="django.core.files.storage.FileSystemStorage"),
+        "BACKEND": DEFAULT_FILE_STORAGE,
     },
     "staticfiles": {
-        "BACKEND": "django.contrib.staticfiles.storage.StaticFilesStorage",
+        "BACKEND": STATICFILES_STORAGE,
     },
 }
 
 
 if STORAGES["default"]["BACKEND"].endswith("MediaS3Storage") is True:
-    STORAGES["staticfiles"]["BACKEND"] = env("STATICFILES_STORAGE")
-    AWS_ACCESS_KEY_ID = env("AWS_ACCESS_KEY_ID")
-    AWS_SECRET_ACCESS_KEY = env("AWS_SECRET_ACCESS_KEY")
-    AWS_STORAGE_BUCKET_NAME = env("AWS_STORAGE_BUCKET_NAME")
+    STORAGES["staticfiles"]["BACKEND"] = STATICFILES_STORAGE
+    AWS_ACCESS_KEY_ID = env.str("AWS_ACCESS_KEY_ID", help_text="AWS Access Key ID for S3 storage")
+    AWS_SECRET_ACCESS_KEY = env.str("AWS_SECRET_ACCESS_KEY", help_text="AWS Secret Access Key for S3 storage")
+    AWS_STORAGE_BUCKET_NAME = env.str("AWS_STORAGE_BUCKET_NAME", help_text="AWS S3 Bucket Name for storage")
     AWS_DEFAULT_ACL = "public-read"
-    AWS_S3_REGION = env("AWS_S3_REGION", default="us-east-2")
+    AWS_S3_REGION = env.str("AWS_S3_REGION", default="us-east-1", help_text="AWS S3 Region for storage")
     AWS_S3_CUSTOM_DOMAIN = f"s3.{AWS_S3_REGION}.amazonaws.com/{AWS_STORAGE_BUCKET_NAME}"
     AWS_S3_OBJECT_PARAMETERS = {"CacheControl": "max-age=86400"}
     STATIC_URL = f"https://{AWS_S3_CUSTOM_DOMAIN}/static/"
@@ -181,13 +236,21 @@
     STATIC_URL = "/public/static/"
 
 # Default primary key field type
-# https://docs.djangoproject.com/en/4.2/ref/settings/#default-auto-field
+# https://docs.djangoproject.com/en/dev/ref/settings/#default-auto-field
 DEFAULT_AUTO_FIELD = "django.db.models.BigAutoField"
 
 # CACHE SETTINGS
-# Redis scheme docs: https://redis-py.readthedocs.io/en/stable/connections.html#redis.connection.ConnectionPool.from_url
-REDIS_URL = env("REDIS_URL", "redis://redis:6379/0")
-REDIS_PREFIX = env("REDIS_PREFIX", default="")
+REDIS_URL = env.str(
+    "REDIS_URL",
+    default="redis://redis:6379/0",
+    help_text="URL used to connect to Redis, see https://docs.djangoproject.com/en/dev/ref/settings/#location for "
+    "more information",
+)
+REDIS_PREFIX = env.str(
+    "REDIS_PREFIX",
+    default="",
+    help_text="Prefix for all Redis keys, useful to avoid key collisions in shared Redis instances",
+)
 CACHES = {
     "default": {
         "BACKEND": "django.core.cache.backends.redis.RedisCache",
@@ -232,10 +295,10 @@
 ACCOUNT_SIGNUP_OPEN = False
 ACCOUNT_SHOW_POST_LOGIN_MESSAGE = False
 
-# See https://github.com/migonzalvar/dj-email-url for more examples on how to set the EMAIL_URL
 email = env.dj_email_url(
     "EMAIL_URL",
     default="smtp://[email protected]:[email protected]:587/?ssl=True&_default_from_email=President%20Skroob%20%[email protected]%3E",
+    help_text="Email URL for sending emails, see https://github.com/migonzalvar/dj-email-url for more examples",
 )
 DEFAULT_FROM_EMAIL = email["DEFAULT_FROM_EMAIL"]
 EMAIL_HOST = email["EMAIL_HOST"]
@@ -266,7 +329,7 @@ def log_format() -> str:
 
 
 log_level = "WARNING"
-IS_DEBUG_LOGGING_ON = env.bool("IS_DEBUG_LOGGING_ON", default=False)
+IS_DEBUG_LOGGING_ON = env.bool("IS_DEBUG_LOGGING_ON", default=False, help_text="Set to `on` to enable debug logging")
 if IS_DEBUG_LOGGING_ON is True:
     log_level = "DEBUG"
 
@@ -305,4 +368,6 @@ def log_format() -> str:
 MAINTENANCE_MODE_STATE_BACKEND = "maintenance_mode.backends.CacheBackend"
 MAINTENANCE_MODE_STATE_BACKEND_FALLBACK_VALUE = True
 
-VITE_DEV_MODE = env.bool("VITE_DEV_MODE", default=DEBUG)
+VITE_DEV_MODE = env.bool(
+    "VITE_DEV_MODE", default=DEBUG, help_text="Set to `on` to enable Vite development mode for HMR in the browser"
+)

pyproject.toml

@@ -11,6 +11,7 @@ dependencies = [
     "django-alive~=2.0",
     "django-allauth~=65.0",
     "django-crispy-forms~=2.2",
+    "django-envtools~=0.2",
     "django-maintenance-mode~=0.19",
     "django-storages~=1.8",
     "environs[django]~=14.1",