From 9289ab40e77906e983a2f79cd7602ee95be5025a Mon Sep 17 00:00:00 2001 From: Patrick Ohly Date: Thu, 19 Jan 2017 20:35:15 +0100 Subject: build.py: add preceedtask() API The API is required by the revised rm_work.bbclass implementation, which needs to know all tasks that do_build depends so that it can properly inject itself between do_build and those tasks. The new API primarily hides the internal implementation of the "after" and "before" dependency tracking. Because tasks defined as precondition via "recrdeptask" may or may not be relevant (they are for rm_work.bclass), the API also includes support for that. There's no default value for including recrdeptasks, so developers have to think about what they need. Signed-off-by: Patrick Ohly Signed-off-by: Richard Purdie --- lib/bb/build.py | 16 ++++++++++++++++ 1 file changed, 16 insertions(+) diff --git a/lib/bb/build.py b/lib/bb/build.py index 271cda62c..c6104a475 100644 --- a/lib/bb/build.py +++ b/lib/bb/build.py @@ -862,3 +862,19 @@ def deltask(task, d): if task in deps: deps.remove(task) d.setVarFlag(bbtask, 'deps', deps) + +def preceedtask(task, with_recrdeptasks, d): + """ + Returns a set of tasks in the current recipe which were specified as + precondition by the task itself ("after") or which listed themselves + as precondition ("before"). Preceeding tasks specified via the + "recrdeptask" are included in the result only if requested. Beware + that this may lead to the task itself being listed. + """ + preceed = set() + preceed.update(d.getVarFlag(task, 'deps') or []) + if with_recrdeptasks: + recrdeptask = d.getVarFlag(task, 'recrdeptask') + if recrdeptask: + preceed.update(recrdeptask.split()) + return preceed -- cgit 1.2.3-korg