feat(indexers): add support for optional baseurl override (#551)

* feat(indexers): optional baseurl override

* feat(indexers): update baseUrl parsing

* refactor(indexers): BREAKING move parse to IRC struct

* Move Parse as part of IRC struct from Indexer
* Updated definitions
* Build torrentUrl in stages
* Use new url.JoinPath to build torrentUrl
* Update tests

* refactor(indexers): select option obj

* refactor(indexers): make backwards compatible

internal/indexer/definitions/torrentnetwork.yaml

@@ -47,23 +47,23 @@ irc:
       label: NickServ Password
       help: NickServ password
 
-parse:
-  type: multi
-  lines:
-    - test:
-        - "{New Torrent} Name {Luke_EP--Wildstyle_-_Sump_Ting-(RNR002)-WEB-2016-OMA} Typ {Music|MP3} Pre {14 s}"
-      pattern: '\{New Torrent\} Name \{(.*)\} Typ \{(.+?)\}(?: Pre \{(.*)\})?'
-      vars:
-        - torrentName
-        - category
-        - preTime
-    - test:
-        - "{New Torrent} Size {24.629 MiB} Files {5} Link {https://tntracker.org/torrent/000000}"
-      pattern: '\{New Torrent\} Size \{(.*)\} Files \{\d+\} Link \{(https?:\/\/[^\/]+)\/torrent\/(\d+)\}'
-      vars:
-        - torrentSize
-        - baseUrl
-        - torrentId
+  parse:
+    type: multi
+    lines:
+      - test:
+          - "{New Torrent} Name {Luke_EP--Wildstyle_-_Sump_Ting-(RNR002)-WEB-2016-OMA} Typ {Music|MP3} Pre {14 s}"
+        pattern: '\{New Torrent\} Name \{(.*)\} Typ \{(.+?)\}(?: Pre \{(.*)\})?'
+        vars:
+          - torrentName
+          - category
+          - preTime
+      - test:
+          - "{New Torrent} Size {24.629 MiB} Files {5} Link {https://tntracker.org/torrent/000000}"
+        pattern: '\{New Torrent\} Size \{(.*)\} Files \{\d+\} Link \{(https?:\/\/[^\/]+\/)torrent\/(\d+)\}'
+        vars:
+          - torrentSize
+          - baseUrl
+          - torrentId
 
-  match:
-    torrenturl: "{{ .baseUrl }}/download/{{ .torrentId }}/{{ .passkey }}"
+    match:
+      torrenturl: "/download/{{ .torrentId }}/{{ .passkey }}"