From e07ed9374a06da1c0f3ad08c961103458c7bcf10 Mon Sep 17 00:00:00 2001
From: Andreas Schmidt <mail@schmidt-andreas.de>
Date: Sat, 8 Dec 2018 13:44:59 +0100
Subject: [PATCH] add plugins module to handle plugins in configuration file

Signed-off-by: Andreas Schmidt <mail@schmidt-andreas.de>
---
 dotbot/cli.py              |  2 +-
 dotbot/dispatcher.py       |  4 ++++
 dotbot/plugins/__init__.py |  1 +
 dotbot/plugins/plugins.py  | 37 +++++++++++++++++++++++++++++++++++++
 4 files changed, 43 insertions(+), 1 deletion(-)
 create mode 100644 dotbot/plugins/plugins.py

diff --git a/dotbot/cli.py b/dotbot/cli.py
index fdc2a13..85f2a3c 100644
--- a/dotbot/cli.py
+++ b/dotbot/cli.py
@@ -56,7 +56,7 @@ def main():
             log.use_color(False)
         plugin_directories = list(options.plugin_dirs)
         if not options.disable_built_in_plugins:
-            from .plugins import Clean, Link, Shell
+            from .plugins import Clean, Link, Shell, Plugins
         plugin_paths = []
         for directory in plugin_directories:
           for plugin_path in glob.glob(os.path.join(directory, '*.py')):
diff --git a/dotbot/dispatcher.py b/dotbot/dispatcher.py
index d1a4f95..68d0d88 100644
--- a/dotbot/dispatcher.py
+++ b/dotbot/dispatcher.py
@@ -29,6 +29,10 @@ class Dispatcher(object):
                     if plugin.can_handle(action):
                         try:
                             success &= plugin.handle(action, task[action])
+                            if action == 'plugins':
+                                self._load_plugins()
+                                self._log.lowinfo('Plugin list have been update')
+                                self._log.info('New plugin list: %s' % [type(plugin).__name__ for plugin in self._plugins])
                             handled = True
                         except Exception as err:
                             self._log.error(
diff --git a/dotbot/plugins/__init__.py b/dotbot/plugins/__init__.py
index 93bd981..2d3e204 100644
--- a/dotbot/plugins/__init__.py
+++ b/dotbot/plugins/__init__.py
@@ -1,3 +1,4 @@
 from .clean import Clean
 from .link import Link
 from .shell import Shell
+from .plugins import Plugins
diff --git a/dotbot/plugins/plugins.py b/dotbot/plugins/plugins.py
new file mode 100644
index 0000000..fa2c896
--- /dev/null
+++ b/dotbot/plugins/plugins.py
@@ -0,0 +1,37 @@
+import os
+import glob
+import dotbot
+from ..util import module
+
+class Plugins(dotbot.Plugin):
+    '''
+    Plugins configuration
+    '''
+
+    _directive = 'plugins'
+
+    def can_handle(self, directive):
+        return directive == self._directive
+
+    def handle(self, directive, data):
+        if directive != self._directive:
+            raise ValueError('Plugins cannot handle directive %s' % directive)
+        return self._process_plugins(data)
+
+    def _process_plugins(self, plugins):
+        plugin_dirs = []
+        plugin_paths = []
+        for plugin in plugins:
+            if isinstance(plugin, dict):
+                plugin_dirs.append(plugin.get('dir', ''))
+            else:
+                plugin_paths.append(plugin)
+        for directory in plugin_dirs:
+            for plugin_path in glob.glob(os.path.join(directory, '*.py')):
+                plugin_paths.append(plugin_path)
+        for plugin in plugin_paths:
+            abspath = os.path.abspath(plugin)
+            module.load(abspath)
+        return True
+
+# vim: ts=4 sw=4 et