changed plugin system

TODO.md

@@ -2,4 +2,4 @@
 tags:
 - frrr
 ---
-+ plugin for xattr
++ plugin writers

orvani/cmd.py

@@ -92,15 +92,7 @@ def main():
 
     orvani = OrvaniTag()
 
-    @orvani.metareader
-    def reader(o):
-        frontmatter.reader(o)
-        hashdoubleslash.reader(o)
-        id3.reader(o)
-        office.reader(o)
-        pdf.reader(o)
-
-    orvani.PLUGINS = args.no_plugins
+    orvani.ENABLE_PLUGINS = args.no_plugins
 
     if args.command in ['add', 'a']:
         if args.file and args.context:

orvani/orvani.py

@@ -2,6 +2,7 @@ import os
 import yaml
 import shutil
 from pathlib import Path
+from importlib import import_module
 from types import SimpleNamespace
 from pprint import pprint
 
@@ -15,11 +16,16 @@ CONTEXTS = {
         'tags'     : '#',
         'note'     : None
 }
+DEFAULT_PLUGINS = [
+    'frontmatter',
+    'hashdoubleslash',
+    'id3',
+    'office',
+    'pdf'
+]
 
 class OrvaniTag:
 
-    META_IN = []
-    META_OUT = []
     INDEX = {} # our search index
     CACHEFILE = '' # search index cache ('.index.yaml')
     DB = dict() # holds the folder context data
@@ -29,9 +35,10 @@ class OrvaniTag:
     FILENAME = '' # folder context data filename ('.context.yaml')
     FILE = '' # holds the folder context file path
     CTX = {}
-    PLUGINS = True
+    ENABLE_PLUGINS = True
+    PLUGINS = []
 
-    def __init__(self, path: str=CONTEXT_FILE, cache: str=CACHE_FILE, contexts=CONTEXTS):
+    def __init__(self, path: str=CONTEXT_FILE, cache: str=CACHE_FILE, contexts=CONTEXTS, plugins:list=DEFAULT_PLUGINS):
         """
         Initialization
 
@@ -40,6 +47,7 @@ class OrvaniTag:
         contexts (dict): override the default contexts
 
         """
+        self.PLUGINS = plugins
         self.FILENAME = os.path.basename(path)
         self.CACHEFILE = cache
         self.CTX = contexts
@@ -288,7 +296,7 @@ class OrvaniTag:
             self.__indexfolder(path)
             if recursive:
                 for (root,dirs,files) in os.walk(path):
-                    if self.PLUGINS:
+                    if self.ENABLE_PLUGINS:
                         if files:
                             for file in files:
                                 fpath = os.path.join(root, file)
@@ -412,17 +420,10 @@ class OrvaniTag:
             common_elements = common_elements.intersection(mresult[key])
         return list(common_elements)
     
-
-    def metareader(self, function):
-        self.META_IN.append(function)
+    def register_plugin(self, function):
+        self.PLUGINS.append(function)
         return function
     
-
-    def metawriter(self, function):
-        self.META_OUT.append(function)
-        return function
-    
-
     def metadata(self, filename: str):
         obj = {
             'path' : filename,
@@ -433,7 +434,6 @@ class OrvaniTag:
             'context' : self.__context
         }
         o = SimpleNamespace(**obj)
-        for reader in self.META_IN:
-            reader(o)
-        for writer in self.META_OUT:
-            writer(o)
+        for plugin_name in self.PLUGINS:
+            plugin = import_module('plugins.' + plugin_name)
+            plugin.reader(o)