def load_context_from_skeleton(skeleton_path):
try:
sys.path.insert(0, '.')
ligamentfile = imp.load_source('ligamentfile', skeleton_path)
except IOError:
perror("Error importing skeleton.py file found in current directory")
exit (1)
build_context = Context()
for name, task in ligamentfile.ligament_tasks.iteritems():
if isinstance(task, BuildTarget):
pout("registered task '%s'" % name, groups=["debug"])
task.register_with_context(name, build_context)
elif isinstance(task, list):
BuildTargetList(
DeferredDependency(t) for t in task
).register_with_context(name, build_context)
to_expose = (
ligamentfile.exposed_tasks
if "exposed_tasks" in dir(ligamentfile)
else build_context.tasks)
for name in to_expose:
if name in build_context.tasks:
build_context.expose_task(name)
else:
perror("task '%s' not declared in ligament file" % name)
return build_context
def print_helptext():
""" print helptext for command-line interface """
pout("usage: %s [flags] [tasks]\n"
" Execute tasks in order. if no tasks are specified, tries to\n"
" execute task 'default'\n"
" flags:\n"
" -w / --watch watch files/folders for changes and update\n"
" -h / --help display this helptext" % sys.argv[0])
def update_task(self, taskname, ignore_dependents=[]):
pout("updating task %s" % taskname)
last_value = self._gettask(taskname).value
self.build_task(taskname)
if last_value != self._gettask(taskname).value:
dependent_order = self.resolve_dependency_graph(taskname)
for index, dependent in enumerate(dependent_order):
if (dependent not in ignore_dependents and
self.tasks[dependent].last_build_time > 0):
self.update_task(
dependent,
ignore_dependents=dependent_order[index:])
else:
pdebug("no change in %s" % taskname)