Gantt chart

You can draw a Gantt chart of the execution with GanttChart:

>>> from ActionTree import GanttChart
>>> chart = GanttChart(link_report)
>>> chart.write_to_png("link_gantt_chart.png")


Each action is represented by an horizontal line. The left part, optional, is thin. It represents the time the action was ready to execute (all dependencies were done) but waiting for a resource (typically a CPU core to execute on). The right part is thicker and represents the actual execution of the action. Resources and timing are explained in detail later in this user guide.

Actions are linked to their dependencies using thin doted lines.

Actions that failed are in red, and actions that were canceled due to a failure in their dependencies are in grey:

>>> compile_unexisting = CallSubprocess(["g++", "-c", "unexisting.cpp", "-o", "_build/unexisting.o"], label="g++ -c unexisting.cpp")
>>> compile_unexisting.add_dependency(make_build_dir)
>>> link.add_dependency(compile_unexisting)
>>> failed_link_report = execute(link, cpu_cores=1, keep_going=True, do_raise=False)
>>> failed_link_report.is_success
>>> chart = GanttChart(failed_link_report)
>>> chart.write_to_png("failed_link_gantt_chart.png")


Dependency graph

You can draw a dependency graph with DependencyGraph:

>>> from ActionTree import DependencyGraph
>>> graph = DependencyGraph(link)
>>> graph.write_to_png("link_dependency_graph.png")