Use qgs settings instead of config yml

CHANGELOG.md

@@ -41,6 +41,7 @@ RELEASING:
  -->
 
 ## Unreleased
+- Use QgsSettings instead of config.yml file to avoid deletion of providers on update ([#108](https://github.com/GIScience/orstools-qgis-plugin/issues/108))
 
 ### Fixed
 - QGis crashes when selecting more than two vertices for deletion ([#230](https://github.com/GIScience/orstools-qgis-plugin/issues/230))

ORStools/ORStoolsPlugin.py

@@ -65,6 +65,8 @@ def __init__(self, iface):
             if qVersion() > "4.3.3":
                 QCoreApplication.installTranslator(self.translator)
 
+        self.add_default_provoder_to_settings()
+
     def initGui(self):
         """Create the menu entries and toolbar icons inside the QGIS GUI."""
 
@@ -75,3 +77,23 @@ def unload(self):
         """remove menu entry and toolbar icons"""
         QgsApplication.processingRegistry().removeProvider(self.provider)
         self.dialog.unload()
+
+    def add_default_provider_to_settings(self):
+        s = QgsSettings()
+        settings = s.value("ORStools/config")
+        if not settings:
+            def_settings = {
+                "providers": [
+                    {
+                        "ENV_VARS": {
+                            "ORS_QUOTA": "X-Ratelimit-Limit",
+                            "ORS_REMAINING": "X-Ratelimit-Remaining",
+                        },
+                        "base_url": "https://api.openrouteservice.org",
+                        "key": "",
+                        "name": "openrouteservice",
+                        "timeout": 60,
+                    }
+                ]
+            }
+            s.setValue("ORStools/config", def_settings)

ORStools/utils/configmanager.py

@@ -29,9 +29,7 @@
 
 import os
 
-import yaml
-
-from ORStools import CONFIG_PATH
+from qgis.core import QgsSettings
 
 
 def read_config():
@@ -41,10 +39,10 @@ def read_config():
     :returns: Parsed settings dictionary.
     :rtype: dict
     """
-    with open(CONFIG_PATH) as f:
-        doc = yaml.safe_load(f)
+    s = QgsSettings()
+    config = s.value("ORStools/config")
 
-    return doc
+    return config
 
 
 def write_config(new_config):
@@ -54,8 +52,8 @@ def write_config(new_config):
     :param new_config: new provider settings after altering in dialog.
     :type new_config: dict
     """
-    with open(CONFIG_PATH, "w") as f:
-        yaml.safe_dump(new_config, f)
+    s = QgsSettings()
+    s.setValue("ORStools/config", new_config)
 
 
 def write_env_var(key, value):