massive refactoring to switch from camelCase to snake_case:

historically, Libervia (SàT before) was using camelCase as allowed by PEP8 when using a
pre-PEP8 code, to use the same coding style as in Twisted.

However, snake_case is more readable and it's better to follow PEP8 best practices, so it
has been decided to move on full snake_case. Because Libervia has a huge codebase, this
ended with a ugly mix of camelCase and snake_case.

To fix that, this patch does a big refactoring by renaming every function and method
(including bridge) that are not coming from Twisted or Wokkel, to use fully snake_case.

This is a massive change, and may result in some bugs.

sat/plugins/plugin_misc_upload.py

@@ -57,28 +57,28 @@ class UploadPlugin(object):
     def __init__(self, host):
         log.info(_("plugin Upload initialization"))
         self.host = host
-        host.bridge.addMethod(
-            "fileUpload",
+        host.bridge.add_method(
+            "file_upload",
             ".plugin",
             in_sign="sssss",
             out_sign="a{ss}",
-            method=self._fileUpload,
+            method=self._file_upload,
             async_=True,
         )
         self._upload_callbacks = []
 
-    def _fileUpload(
+    def _file_upload(
         self, filepath, filename, upload_jid_s="", options='', profile=C.PROF_KEY_NONE
     ):
-        client = self.host.getClient(profile)
+        client = self.host.get_client(profile)
         upload_jid = jid.JID(upload_jid_s) if upload_jid_s else None
         options = data_format.deserialise(options)
 
-        return defer.ensureDeferred(self.fileUpload(
+        return defer.ensureDeferred(self.file_upload(
             client, filepath, filename or None, upload_jid, options
         ))
 
-    async def fileUpload(self, client, filepath, filename, upload_jid, options):
+    async def file_upload(self, client, filepath, filename, upload_jid, options):
         """Send a file using best available method
 
         parameters are the same as for [upload]
@@ -159,7 +159,7 @@ class UploadPlugin(object):
            components)
            exceptions.NotFound must be raised if no entity has been found
         @param upload_cb(callable): method to upload a file
-            must have the same signature as [fileUpload]
+            must have the same signature as [file_upload]
             must return a tuple with progress_id and a Deferred which fire download URL
             when upload is finished
         @param priority(int): pririoty of this method, the higher available will be used