init script won' overwrite existing .env file

EditionOpenAccess · Nov 29, 2019 · e641703 · e641703
1 parent 314c811
commit e641703
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Showing 2 changed files with 25 additions and 20 deletions.
diff --git a/README.md b/README.md
@@ -19,7 +19,7 @@ Dependencies to other git repositories are handled using [git_deps_py](https://g
 - Environment variables: see file `.env`
 
 	These variables are available inside the `docker-compose.yaml` file and are also loaded into the python scripts.
-	The file is created/overwritten with default settings by the `init.py` script.
+	(The `.env` file is initially created with default settings by the `init.py` script)
 
 - Django settings: see `src/eoa/settings.py`
 

diff --git a/scripts/utils/settings.py b/scripts/utils/settings.py
@@ -31,26 +31,31 @@ def load_config(
         config = { "PATH": path, ** config }
     return config
 
-def create_docker_env_file():
-    import subprocess
-    user = subprocess.check_output(
-            shlex.split("id -u"),
-            universal_newlines=True
-        ).rstrip("\n")
-    group = subprocess.check_output(
-            shlex.split("id -g"),
-            universal_newlines=True
-        ).rstrip("\n")
+def create_docker_env_file(
+    overwrite = False
+):
+    if overwrite or not(env_file.exists()):
+        import subprocess
+        user = subprocess.check_output(
+                shlex.split("id -u"),
+                universal_newlines=True
+            ).rstrip("\n")
+        group = subprocess.check_output(
+                shlex.split("id -g"),
+                universal_newlines=True
+            ).rstrip("\n")
 
-    print( "user id: {}, group id: {}".format( user, group) )
-    print( "writing docker .env file to {}, appended user and group".format( env_file ) )
-    config = __load_orig_config( orig_config_file )
-    config['config']['USER'] = user
-    config['config']['GROUP'] = group
-    __write_as_env(
-        config,
-        env_file 
-    )
+        print( "user id: {}, group id: {}".format( user, group) )
+        print( "writing docker .env file to {}, appended user and group".format( env_file ) )
+        config = __load_orig_config( orig_config_file )
+        config['config']['USER'] = user
+        config['config']['GROUP'] = group
+        __write_as_env(
+            config,
+            env_file 
+        )
+    else:
+        print( f"INFO: '{env_file}' already exists" )
 
 def __load_orig_config( filename ):
     config = ConfigParser(