Update docs and error message (#116)

* Print all missing ERT env vars at once when missing

* Remove unused options argument from docs

* Properly check if missing env var list is empty

* Fix typo

docs/sim2sumo.rst

@@ -145,7 +145,7 @@ Custom configuration
 =====================
 
 The sim2sumo section in the config file gives you full flexibility for extracting anything that ``res2df`` can extract.
-You can also change where you extract results from, and even use all the extra custumization options that ``res2df`` has available.
+You can also change where you extract results from, and use some of the extra customization options that ``res2df`` has available.
 The three relevant sections are:
 
 datafile

src/fmu/sumo/sim2sumo/main.py

@@ -51,16 +51,16 @@ def main():
     """Main function to be called"""
     logger = logging.getLogger(__file__ + ".main")
 
-    missing = 0
+    missing = []
     for envVar in REQUIRED_ENV_VARS:
-        if environ.get(envVar) is None:
-            print(f"Required environment variable {envVar} is not set.")
-            missing += 1
+        if envVar not in environ:
+            missing.append(envVar)
 
-    if missing > 0:
+    if missing:
         print(
-            "Required ERT environment variables not found. "
-            "This can happen if sim2sumo was called outside the ERT context. "
+            "Required ERT environment variables not found:"
+            f"{', '.join(missing)}.\n"
+            "This can happen if sim2sumo was called outside the ERT context.\n"
             "Stopping."
         )
         exit()

tests/data/reek/realization-0/iter-0/fmuconfig/output/global_variables_w_eclpath_and_extras.yml

@@ -29,9 +29,4 @@ sim2sumo:
     - summary
     - grid
     - rft
-  options:
-    arrow: false
-    time_index: daily,
-    start_date: 2002-01-02
-    end_date: 2003-01-02
   grid3d: false

tests/data/reek/realization-1/iter-0/fmuconfig/output/global_variables_w_eclpath_and_extras.yml

@@ -29,8 +29,3 @@ sim2sumo:
     - summary
     - grid
     - rft
-  options:
-    arrow: false
-    time_index: daily,
-    start_date: 2002-01-02
-    end_date: 2003-01-02