Add dependency_checker

safeeyes/plugins/donotdisturb/config.json

@@ -6,7 +6,7 @@
     },
     "dependencies": {
         "python_modules": [],
-        "shell_commands": ["xprop"],
+        "shell_commands": [],
         "operating_systems": [],
         "desktop_environments": [],
         "resources": []
@@ -37,4 +37,4 @@
         }
     ],
     "break_override_allowed": true
-}
+}

safeeyes/plugins/donotdisturb/dependency_checker.py

@@ -0,0 +1,31 @@
+# Safe Eyes is a utility to remind you to take break frequently
+# to protect your eyes from eye strain.
+
+# Copyright (C) 2017  Gobinath
+
+# This program is free software: you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation, either version 3 of the License, or
+# (at your option) any later version.
+
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+
+# You should have received a copy of the GNU General Public License
+# along with this program.  If not, see <http://www.gnu.org/licenses/>.
+
+from safeeyes import utility
+
+
+def validate(plugin_config, plugin_settings):
+    command = None
+    if utility.IS_WAYLAND:
+        command = "wlrctl"
+    else:
+        command = "xprop"
+    if not utility.command_exist(command):
+        return _("Please install the command-line tool '%s'") % command
+    else:
+        return None