Deadline: Improve get_publish_plugin_paths to properly get paths for …

…the specified host

openpype/modules/deadline/deadline_module.py

@@ -1,7 +1,10 @@
+import ast
+import re
 import os
 import requests
 import six
 import sys
+from pathlib import Path
 
 from openpype.lib import requests_get, Logger
 from openpype.modules import OpenPypeModule, IPluginPaths
@@ -15,9 +18,17 @@ class DeadlineWebserviceError(Exception):
 
 class DeadlineModule(OpenPypeModule, IPluginPaths):
     name = "deadline"
+    _valid_plugin_types = ["publish"]
 
     def __init__(self, manager, settings):
         self.deadline_urls = {}
+
+        self.plugin_paths = {}
+        for valid_plugin_type in self._valid_plugin_types:
+            self.plugin_paths[valid_plugin_type] = {
+                'all': []
+            }
+
         super(DeadlineModule, self).__init__(manager, settings)
 
     def initialize(self, modules_settings):
@@ -36,12 +47,62 @@ def initialize(self, modules_settings):
                               "not specified. Disabling module."))
             return
 
+        # Retrieve plugin paths and properly sort them
+        hosts_regex = re.compile(r'hosts = (?P<hosts>\[[^\]]+\])')
+        plugin_dir = Path(__file__).joinpath("plugins").resolve()
+
+        for valid_plugin_type in self._valid_plugin_types:
+            search_dir = plugin_dir.joinpath(valid_plugin_type)
+
+            if not search_dir.exists():
+                continue
+
+            dir_plugin_paths = list(search_dir.glob('*.py'))
+
+            for plugin_path_str in dir_plugin_paths:
+                plugin_path = Path(plugin_path_str).resolve()
+                plugin_path_resolved = str(plugin_path)
+
+                # Opening the file, reading the content and extracting
+                # the list of hosts for the plugin path
+                with open(plugin_path) as f:
+                    content = f.read()
+                    match = hosts_regex.search(content)
+
+                    if not match or not match.lastgroup:
+                        # The regex didn't match, maybe an __init__.py file
+                        continue
+
+                    hosts_str = re.sub(r'\s+', '', match.group(match.lastgroup))
+                    hosts_list = ast.literal_eval(hosts_str)
+
+                    # Adding the plugin path to the "all" array
+                    self.plugin_paths[valid_plugin_type]['all'].append(plugin_path_resolved)
+
+                    # Adding the plugin path to the correct host array(s)
+                    for host in hosts_list:
+                        if host in self.plugin_paths[valid_plugin_type]:
+                            self.plugin_paths[valid_plugin_type][host].append(plugin_path_resolved)
+                        else:
+                            self.plugin_paths[valid_plugin_type][host] = [plugin_path_resolved]
+
     def get_plugin_paths(self):
         """Deadline plugin paths."""
-        current_dir = os.path.dirname(os.path.abspath(__file__))
-        return {
-            "publish": [os.path.join(current_dir, "plugins", "publish")]
-        }
+        all_plugin_paths = {}
+
+        for valid_plugin_type in self._valid_plugin_types:
+            all_plugin_paths[valid_plugin_type] = self.plugin_paths[valid_plugin_type]['all']
+
+        return all_plugin_paths
+
+    def get_publish_plugin_paths(self, host_name):
+        """Only get the plugin paths related to the host specified"""
+        if not host_name or host_name not in self.plugin_paths['publish']:
+            # If we cannot determine the host, or it's not specified,
+            # then we will return all the registered plugin paths
+            host_name = "all"
+
+        return self.plugin_paths['publish'][host_name]
 
     @staticmethod
     def get_deadline_pools(webservice, log=None):