Add ert docs documentation (#29)

* Hardcode documentation strings

* Use global name in hooks

* Add docstrings

* Tidy function

src/fmu/sumo/sim2sumo/hook_implementations/jobs.py

@@ -1,3 +1,4 @@
+"""Install in ert, including documentation to ert-docs"""
 import importlib
 import os
 import sys
@@ -7,13 +8,61 @@
 from ert.shared.plugins.plugin_response import plugin_response
 
 
+DESCRIPTION = """
+Makes result simulator (Eclipse, OPM, IX) available in sumo.
+This is done by SIM2SUMO in a three step process:
+1. Data is extracted in arrow format using res2df
+2. Corresponding metadata are generated via fmu-dataio
+3. Data and metadata are then uploaded to Sumo using fmu-sumo-upload
+SIM2SUMO is set up to automatically extract summary, rft and well completion data, but
+you can configure it to extract any datatype that res2df can produce.
+
+SIM2SUMO autodetects results from your the eclipse/model/ folder in your realization.
+Basically looking for files with suffix .DATA, and then going on to finding the eclipse
+run results. This means that if you have more than one eclipse run in that folder, you will
+get the specified result from all those runs. The results will be stored in sumo with
+name <name of datafile> where the habituary -<IENS> at the end is removed,
+tagname will be name of datatype extracted.
+
+E.G: summary files extracted from an eclipse run names DROGON-1, will be stored in
+sumo with name: DROGON, tagname: summary, and fmu.realization.id: 1
+
+ Pre-requisites: SIM2SUMO is dependent on a configuration yaml file.
+                (defaulted to ../../fmuconfig/output/global_variables.yml).
+                This file needs to contain masterdata, and if you want
+                to have some custom configurations, this is also done here .
+                See examples.
+
+"""
+EXAMPLES = """
+1. Extracting the defaults, with fmu_config in the standard location:
+
+   In an Ert config file
+   FORWARD_MODEL ECLIPSE100(...)
+   --Note: SIM2SUMO must come after ECLIPSE100
+   FORWARD_MODEL SIM2SUMO(<S2S_CONFIG_PATH>=path/to/config/file)
+
+2. Extracting the defaults, but with fmu_config in a non standard location:
+
+   In an Ert config file
+   FORWARD_MODEL ECLIPSE100(...)
+   --Note: SIM2SUMO must come after ECLIPSE100
+   FORWARD_MODEL SIM2SUMO(<S2S_CONFIG_PATH>=path/to/config/file)
+
+3. When you want to configure the fmu_config file to control what SIM2SUMO produces
+   (for inclusion of the forward model in your ert setup see examples 1. or 2.)
+   add section sim2sumo to your fmu_config file. Documentation of how to do this is
+   under construction, for now contact Daniel Sollien (dbs) for help.
+"""
+PLUGIN_NAME = "SIM2SUMO"
+
+
 def _get_jobs_from_directory(directory):
     """Do a filesystem lookup in a directory to check
     for available ERT forward models"""
     resource_directory = (
-        Path(sys.modules["fmu.sumo.sim2sumo"].__file__).parent / directory
+        Path(sys.modules["fmu.sumo.sim2sumo"].__file__) / directory
     )
-
     all_files = [
         os.path.join(resource_directory, f)
         for f in os.listdir(resource_directory)
@@ -25,44 +74,28 @@ def _get_jobs_from_directory(directory):
 # pylint: disable=no-value-for-parameter
 @hook_implementation
 @plugin_response(
-    plugin_name="fmu_sumo_sim2sumo"
+    plugin_name=PLUGIN_NAME
 )  # pylint: disable=no-value-for-parameter
 def installable_jobs():
-    return _get_jobs_from_directory("config_jobs")
-
+    """Return installable jobs
 
-def _get_module_variable_if_exists(module_name, variable_name, default=""):
-    try:
-        script_module = importlib.import_module(module_name)
-    except ImportError:
-        return default
-
-    return getattr(script_module, variable_name, default)
+    Returns:
+        dictionary: the jobs to install
+    """
+    return _get_jobs_from_directory("config_jobs")
 
 
 @hook_implementation
 @plugin_response(
-    plugin_name="fmu_sumo_sim2sumo"
+    plugin_name=PLUGIN_NAME
 )  # pylint: disable=no-value-for-parameter
 def job_documentation(job_name):
     sumo_fmu_jobs = set(installable_jobs().data.keys())
     if job_name not in sumo_fmu_jobs:
         return None
 
-    module_name = "jobs.scripts.{}".format(job_name.lower())
-
-    description = _get_module_variable_if_exists(
-        module_name=module_name, variable_name="description"
-    )
-    examples = _get_module_variable_if_exists(
-        module_name=module_name, variable_name="examples"
-    )
-    category = _get_module_variable_if_exists(
-        module_name=module_name, variable_name="category", default="other"
-    )
-
     return {
-        "description": description,
-        "examples": examples,
-        "category": category,
+        "description": DESCRIPTION,
+        "examples": EXAMPLES,
+        "category": "export",
     }