63 lines
1.9 KiB
Ruby
Executable file
63 lines
1.9 KiB
Ruby
Executable file
#!/usr/bin/env ruby
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require 'json'
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require 'time'
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DAYS = 60 * 60 * 24
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WEEKS = DAYS * 7
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TASKWARRIOR_DATE_FORMAT = "%Y%m%dT060000Z"
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# Find the -final- task state that's passed to us.
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json_task = $stdin.map{ |line| line }.last
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task = JSON.parse(json_task)
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last_task_form = json_task
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# Only modify tasks that are done, but have a recur.
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# Emit all other tasks' final states unchanged.
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unless task.has_key?('status') && task.has_key?('recur_after') && (task['status'] == 'completed')
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puts(json_task)
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exit 0
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end
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#
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# We have an recur-after recurring task -- modify it!
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#
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unless task.has_key? 'due'
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puts "ERROR: task #{task['id']} has an 'recur_after' recurrance, but no due date!"
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exit -1
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end
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completed_date = Time.parse(task['end'])
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previous_due_date = Time.parse(task['due'])
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# Figure our our next recurrance based on the taskwarrior period/duration syntax.
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recur_date = case task['recur_after']
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when /P(\d+)D/ then completed_date + ($1.to_i * DAYS)
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when /P(\d+)W/ then completed_date + ($1.to_i * WEEKS)
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when /P(\d+)M/ then Time.new(completed_date.year, completed_date.month + $1.to_i, completed_date.day)
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when /P(\d+)H/ then Time.new(completed_date.year + $1.to_i, completed_date.month, completed_date.day)
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else
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puts "ERROR: task #{task['id']} has unsupported 'recur_after' duration #{task['recur_after']}"
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exit -1
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end
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# Mutate the task to be pending, still, but with new dates.
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task['status'] = 'pending'
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task['due'] = recur_date.strftime(TASKWARRIOR_DATE_FORMAT)
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# If this task has ancillary dates, maintain the offset between them and the due date.
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['wait', 'start'].each do |field|
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if task.has_key?(field)
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field_offset = previous_due_date - Time.parse(task[field])
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new_field_date = Time.parse(task['due']) - field_offset
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task[field] = new_field_date.strftime(TASKWARRIOR_DATE_FORMAT)
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end
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end
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# Emit the task back to TaskWarrior.
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puts task.to_json
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