timewarrior/doc/data.txt
2016-02-29 08:50:08 -05:00

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Timewarrior Data
================
Timewarrior has a conceptual timeline, which is a continuum onto which the
inclusions and exclusions are mapped.
An inclusion is a block of time with associated tags, i.e. data captured or
provided by the user representing ongoing work.
An exclusion is also a block of time but represents untrackable time, and acts
as a mask for the inclusions. Here is a visual example:
Inclusion: |-----------------------------------| tag1
Exclusion: |---| lunch
Exclusion |---| dinner
Timeline: >--o---o---o---o---o---o---o---o---o---o---o---o---o-->
7 8 9 10 11 12 1 2 3 4 5 6 7
am pm
In the example, there is one incluѕion, a block of time from 8am - 5pm, tagged
with 'tag1'. That was data captured from the command line, perhaps with this
command:
$ timew track 8am - 5pm tag1
There are several ways to track time that result in the same inclusion, for
example, if these commands were run at 8am and 5pm respectively:
[at 8am] $ timew start tag1
[at 5pm] $ timew stop
It can be seen that some combination of all the incluѕions and exclusions will
yield a complete record of tracked time.
Exclusions
----------
Exclusions are stored as configuration, and there are several commands that
allow easy manipulation of this. Whenever an exclusion changes, the set of all
exclusions are written to the data file. This is because all subsequent
inclusions are to be resolved against the active set of exlcusions.
Inclusions
----------
Inclusions are captured from the command line in many different ways, but all
results in an incluѕion record being written to the data file.
If there is an open-ended inclusion at the time an exclusion is changed, then
the open-ended inclusion is closed, the exclusions written, and a new open-ended
inclusion is added.
Data Files
==========
The data file is a text file, which grows in length. It begins with a set of
exclusions, followed by a set of inclusion records that utilize the prior set of
exclusions.
An example file looks like this:
exclusion holidays eng-USA
exclusion work 2015-11-26
exclusion workweek mon,tue,wed,thu,fri
exclusion workday start 8:30am
exclusion workday end 1730
exclusion workday tue end 3pm
inclusion 2016-02-28T08:00 - 2016-02-28T12:00 # Upgrade Planning
inclusion 2016-02-28T13:00 # Upgrade Presentation "ABCD Inc"
White space is ignored. Here we see a sect of exlcusions that define a work week
and a two inclusions, the first of which represents a four hour block of time
with two tags 'Upgrade' and 'Planning'. The second inclusion is open ended,
having only a start time (1pm), but three tags 'Upgrade', 'Presentation' and
'ABCD Inc'. The third tag is a quoted string because of the embedded space.
An open-ended inclusion like this means that the tracking continues, but the
exlcusions prevent an excess time buildup of the 63 hours that compries the
weekend (Friday 5:30pm until Monday 8:30am).
Data File Names
---------------
The data file names will have the year and month embedded, which acts as a
heuristic for filtering, keeps the data files small and therefore quicker to
manipulate, and eliminates the need for any sophisticated archiving.
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