Extensions

- Created scripts/extensions/README to describe samples.
- Created sample extension scripts of each type.

scripts/extensions/task_hook.lua

@@ -0,0 +1,36 @@
+-- Task Hook Extension.
+-- Implementing encouragement message.
+
+-- Arguments: None
+-- Returns:   An 8-element list of installation details.  Only called once, on
+--            installation of the extension.
+function install ()
+  return 'task',                           -- Type
+         'encourage',                      -- Name
+         1.0,                              -- Version
+         'Positive feedback',              -- Description
+         'Paul Beckingham',                -- Author
+         'paul@beckingham.net',            -- Contact
+         'GPLv2',                          -- License
+         '© 2011, Göteborg Bit Factory'    -- Copyright
+end
+
+-- Arguments: None
+-- Returns:   String identifying valid program hook
+function hook ()
+  return 'on-task-complete'
+end
+
+-- Arguments: None
+-- Returns:   1, 'error' --> failure
+--            0, nil     --> success
+function encourage ()
+  -- Only provide encouragement if the verbosity settings allow it.
+  verbosity = task_get ('rc.verbose')
+  if string.find (verbosity, 'encourage') ~= nil
+  then
+    print ('Good work.')
+  end
+  return 0, nil
+end
+