improvement -> all suported types now display a 'Checking configuration file' task during the initialization process

bauh/gems/web/suggestions.py

@@ -0,0 +1,59 @@
+import os
+import traceback
+from logging import Logger
+from pathlib import Path
+
+import requests
+import yaml
+
+from bauh.api.http import HttpClient
+from bauh.gems.web import URL_SUGGESTIONS, SUGGESTIONS_CACHE_FILE
+from bauh.view.util.translation import I18n
+
+
+class SuggestionsManager:
+
+    def __init__(self, http_client: HttpClient, logger: Logger, i18n: I18n):
+        self.http_client = http_client
+        self.logger = logger
+        self.i18n = i18n
+
+    def download(self) -> dict:
+        self.logger.info("Reading suggestions from {}".format(URL_SUGGESTIONS))
+        try:
+            suggestions = self.http_client.get_yaml(URL_SUGGESTIONS, session=False)
+
+            if suggestions:
+                self.logger.info("{} suggestions successfully read".format(len(suggestions)))
+            else:
+                self.logger.warning("Could not read suggestions from {}".format(URL_SUGGESTIONS))
+
+        except (requests.exceptions.ConnectionError, requests.exceptions.ConnectTimeout):
+            self.logger.warning("Internet seems to be off: it was not possible to retrieve the suggestions")
+            suggestions = {}
+
+        self.logger.info("Finished")
+        return suggestions
+
+    def save_to_disk(self, suggestions: dict):
+        if not suggestions:
+            return
+
+        self.logger.info('Caching {} suggestions to the disk'.format(len(suggestions)))
+        suggestions_file_dir = os.path.dirname(SUGGESTIONS_CACHE_FILE)
+        try:
+            Path(suggestions_file_dir).mkdir(parents=True, exist_ok=True)
+        except OSError:
+            self.logger.error("Could not generate the directory {}".format(suggestions_file_dir))
+            traceback.print_exc()
+            return
+
+        try:
+            with open(SUGGESTIONS_CACHE_FILE, 'w+') as f:
+                f.write(yaml.safe_dump(suggestions))
+
+            self.logger.info("{} suggestions successfully cached to file '{}'".format(len(suggestions), SUGGESTIONS_CACHE_FILE))
+        except:
+            self.logger.error("Could write to {}".format(SUGGESTIONS_CACHE_FILE))
+            traceback.print_exc()
+            return