Add uninstalling capacity

HISTORY.rst

@@ -14,6 +14,7 @@ Unreleased
 
 - create_or_update lyrics accepts now a model so we can change its env (user,
   context, ...)
+- capacity to uninstall module
 
 **Documentation**
 

anthem/lyrics/__init__.py

@@ -12,5 +12,6 @@
  * load a csv, xml or yaml file
  * add a xmlid on a record
  * upsert a record
+ * uninstall a module
 
 """

anthem/lyrics/uninstaller.py

@@ -0,0 +1,18 @@
+# -*- coding: utf-8 -*-
+# Copyright 2016-2017 Camptocamp SA
+# License AGPL-3.0 or later (http://www.gnu.org/licenses/agpl)
+
+from ..exceptions import AnthemError
+
+
+def uninstall(ctx, module_list):
+    """ uninstall module """
+    if not module_list:
+        raise AnthemError(u"You have to provide a list of "
+                          "module's name to uninstall")
+
+    mods = ctx.env['ir.module.module'].search([('name', 'in', module_list)])
+    try:
+        mods.button_immediate_uninstall()
+    except:
+        raise AnthemError(u'Cannot uninstall modules. See the logs')

tests/test_lyrics_uninstaller.py

@@ -0,0 +1,22 @@
+# -*- coding: utf-8 -*-
+# Copyright 2016 Camptocamp SA
+# License LGPL-3.0 or later (https://www.gnu.org/licenses/lgpl-3.0.en.html)
+
+import pytest
+import anthem.cli
+from anthem.lyrics.uninstaller import uninstall
+from anthem.exceptions import AnthemError
+
+
+def test_uninstall_1():
+    with anthem.cli.Context(None, anthem.cli.Options(test_mode=True)) as ctx:
+        with pytest.raises(AnthemError) as excinfo:
+            uninstall(ctx, [])
+        excinfo.match(r'You have to provide a list of module.*')
+
+
+def test_uninstall_2():
+    with anthem.cli.Context(None, anthem.cli.Options(test_mode=True)) as ctx:
+        ctx.env['ir.module.module'].search(
+            [('name', '=', 'lunch')]).button_immediate_install()
+        uninstall(ctx, ['lunch'])