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Provides ticket dependencies and master tickets.

Project description

Notes

Adds basic ticket dependencies for Trac.

Note: MasterTickets 3.0 requires Trac 0.12 or higher.

What is it?

This plugin adds “blocking” and “blockedby” fields to each ticket, enabling you to express dependencies between tickets. It also provides a graphviz-based dependency-graph feature for those tickets having dependencies specified, allowing you to visually understand the dependency tree. The dependency graph is viewable by clicking ‘depgraph’ in the context (in the upper right corner) menu when viewing a ticket that blocks or is blocked by another ticket.

What is it not?

  • It does not provide ticket-hiding for sub-tasks of a top-level ticket.
    • There is no orthogonal parent/child relationship possible
    • You cannot view the descriptions of tickets depending on the current ticket
    • In fact, there are no explicit features that can assist you with sub-task management
    • Although it would be cool.
  • It does not allow you to create a dependent ticket from the current ticket
  • It does not include reporting features to show how tasks are interrelated (other than the dependency graph already described above).

Configuration

To use this plugin you must configure two custom fields named blocking and blockedby.

All other configuration options go in the [mastertickets] section.

dot_path : optional, default: dot
Path to the dot executable. This is only used for the dependency graph.
use_gs : optional, default: False
If enabled, use ghostscript to produce a nicer dependency graph.
gs_path : optional, default: gs
Path to the ghostscript executable.
closed_color : optional, default: green
Color of closed tickets
opened_color : optional, default: red
Color of opened tickets
graph_direction : optional, default: TD
Direction of the dependency graph (TD = Top Down, DT = Down Top, LR = Left Right, RL = Right Left)

To enable the plugin:

[components]
mastertickets.* = enabled

[ticket-custom]
blocking = text
blocking.label = Blocking
blockedby = text
blockedby.label = Blocked By

Custom fields

While the two field names must be blocking and blocked_by, you are free to use any text for the field labels.

Example

To use a locally-built graphviz:

[mastertickets]
dot_path = /usr/local/bin/dot

[components]
mastertickets.* = enabled

[ticket-custom]
blocking = text
blocking.label = Blocking
blockedby = text
blockedby.label = Blocked By

Example reports

To only show the tickets that are currently not blocked by other non-closed tickets, use this SQL (eg in a new report):

SELECT p.value AS __color__,
 id AS ticket, summary, component, version, milestone, t.type AS type,
 owner, status,
 time AS created,
 changetime AS _changetime, description AS _description,
 reporter AS _reporter,
 (SELECT COUNT(*) FROM mastertickets m, ticket t2
  WHERE t.id=m.dest AND m.source=t2.id AND t2.status <> 'closed') AS _blocked
FROM ticket t
LEFT JOIN enum p ON p.name = t.priority AND p.type = 'priority'
WHERE status <> 'closed' AND _blocked = 0
ORDER BY CAST(p.value AS integer), milestone, t.type, time

Basically it is the default report, with an aditional, hidden field (the sub query), named _blocked. The value of this field is checked to be zero.

Using this method, other reports can be modified as well, eg to show the number of tickets blocking a ticket and/or the number of tickets that the ticked is blocking itself.

Project details


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