add script to create app version file

poetry_scripts.py

@@ -2,14 +2,38 @@
 """
 
 import sys
-
 from subprocess import check_call
+import git
+import json
+import os
 
 
 _test_dir = "tests"
 _python_dir = "rtgmpy"
 
 
+def app_version():
+    version_file = open("rtgmpy/www/resources/app-version.json", "w+")
+
+    try:
+        repo = git.Repo('.')
+        gitHash = repo.head.commit.hexsha
+        version = repo.git.describe(tags=True, first_parent=True, always=True)
+        url = os.environ.get('CI_PROJECT_URL', repo.remotes.origin.url)
+
+        version_info = dict(
+            gitHash=gitHash,
+            projectName='erp-rtgm-calculator',
+            url = url,
+            version=version,
+        )
+
+        version_file.write(json.dumps(version_info, indent=2))
+    except:
+        print('Failed to create version file. Writing blank file.')
+        version_file.write(json.dumps('{}'))
+
+
 def rtgm():
     args = sys.argv
     args.remove(args[0])
@@ -34,11 +58,13 @@ def lint():
 
 
 def start():
+    app_version()
     # Run development web service
     check_call(["python", "-m", "uvicorn", "rtgmpy.www.main:app", "--reload", "--port", "8080"])
 
 
 def start_prod():
+    app_version()
     # Run development web service
     check_call(
         ["python", "-m", "uvicorn", "rtgmpy.www.main:app", "--port", "8080", "--host", "0.0.0.0"]