Collect anonymous usage statistics

[novaki]

We could learn more about usage, missing sentences, etc.

[novaki]

How do we collect stats?
What do we collect?
Can it be turned on/off by user? If so, what is the default setting?
How can the user check what was sent?

[novaki]

How: try to use google analytics
What:

• said sentences, without argument values. e.g. user types "sw br fo", consoloid autocompletes to "switch branch foo". Stat should include "switch branch ", i.e. the pattern used when the sentence was interpreted.
• sentence "source", i.e. expression-reference button, mic or autocomplete
• how many times tada was started? log welcomeMessage dialog appearance
• in what order the sentences/commands were run? nice to have
• missing sentences
• ambiguous sentences

[novaki]

Can it be turned on/off by user? If so, what is the default setting?

• it should be enabled by default.
• the user should be notified on the first run of tada. The notification should refer to a wiki page that describes how to turn off stat collection.

How can the user check what was sent?

• each send of user stat event is logged with a specific prefix. The user can find these using grep.
• wiki should include a guide on this topic.