feat: add dynamic versioning and automated deployment with rollback capability

- Implement setuptools-scm for dynamic version management from git tags
- Refactor CI/CD into separate build and deploy jobs with artifact sharing
- Add versioned releases with timestamp-based deployment directories
- Implement health checks and automatic rollback on deployment failure
- Extract deployment logic into reusable shell scripts
- Add Docker layer caching to speed up builds
- Include version info in Django context and build args

src/pkmntrade_club/__init__.py

@@ -0,0 +1,5 @@
+"""pkmntrade.club - A django project for trading Pokémon TCG Pocket Cards"""
+
+from pkmntrade_club._version import __version__, get_version, get_version_info
+
+__all__ = ['__version__', 'get_version', 'get_version_info']

src/pkmntrade_club/_version.py

@@ -0,0 +1,61 @@
+from importlib.metadata import version, PackageNotFoundError
+from setuptools_scm import get_version
+"""
+Version module for pkmntrade.club
+
+This module provides version information from git tags via setuptools-scm.
+"""
+
+try:
+  __version__ = version("pkmntrade-club")
+except PackageNotFoundError:
+  # Package is not installed, try to get version from setuptools_scm
+  try:
+    __version__ = get_version(root='../../..', relative_to=__file__)
+  except (ImportError, LookupError):
+    __version__ = "0.0.0+unknown"
+
+def get_version():
+  """Return the current version."""
+  return __version__
+
+def get_version_info():
+  """Return detailed version information."""
+  import re
+  
+  # Parse version string (e.g., "1.2.3", "1.2.3.dev4+gabc1234", "1.2.3-prerelease")
+  match = re.match(
+    r'^(\d+)\.(\d+)\.(\d+)'
+    r'(?:\.dev(\d+))?'
+    r'(?:\+g([a-f0-9]+))?'
+    r'(?:-(.+))?$',
+    __version__
+  )
+  
+  if match:
+    major, minor, patch, dev, git_sha, prerelease = match.groups()
+    return {
+      'version': __version__,
+      'major': int(major),
+      'minor': int(minor),
+      'patch': int(patch),
+      'dev': int(dev) if dev else None,
+      'git_sha': git_sha,
+      'prerelease': prerelease,
+      'is_release': dev is None and not prerelease,
+      'is_prerelease': bool(prerelease),
+      'is_dev': dev is not None
+    }
+  
+  return {
+    'version': __version__,
+    'major': 0,
+    'minor': 0,
+    'patch': 0,
+    'dev': None,
+    'git_sha': None,
+    'prerelease': None,
+    'is_release': False,
+    'is_prerelease': False,
+    'is_dev': True
+} 

src/pkmntrade_club/common/context_processors.py

@@ -3,4 +3,10 @@ from django.conf import settings
 def cache_settings(request):
     return {
         'CACHE_TIMEOUT': settings.CACHE_TIMEOUT,
+    }
+
+def version_info(request):
+    return {
+        'VERSION': settings.VERSION,
+        'VERSION_INFO': settings.VERSION_INFO,
     }

src/pkmntrade_club/django_project/settings.py

@@ -4,6 +4,8 @@ import environ
 import os
 import logging
 import sys
+from django.utils.translation import gettext_lazy as _
+from pkmntrade_club._version import __version__, get_version_info
 
 # set default values to local dev values
 env = environ.Env(
@@ -84,6 +86,9 @@ CACHE_TIMEOUT = env('CACHE_TIMEOUT')
 DISABLE_SIGNUPS = env('DISABLE_SIGNUPS')
 DISABLE_CACHE = env('DISABLE_CACHE')
 
+VERSION = __version__
+VERSION_INFO = get_version_info()
+
 # Quick-start development settings - unsuitable for production
 # See https://docs.djangoproject.com/en/dev/howto/deployment/checklist/
 
@@ -213,6 +218,7 @@ TEMPLATES = [
                 "django.contrib.auth.context_processors.auth",
                 "django.contrib.messages.context_processors.messages",
                 "pkmntrade_club.common.context_processors.cache_settings",
+                "pkmntrade_club.common.context_processors.version_info",
             ],
         },
     },