build: Allow deltask to take multiple tasknames

deltask currently supports only one task to delete but it would be useful
if it could support a variable which gets expanded to allow flexibility
in the metadata.

This is simple to support in bitbake and is how other directives such
as inherit operate so adjust the parser/code to handle that. It means
that syntax like:

EXTRA_NOPACKAGE_DELTASKS = ""
deltask ${EXTRA_NOPACKAGE_DELTASKS}

is now allowed.

Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>

3 files changed, 11 insertions, 10 deletions

diff --git a/lib/bb/parse/ast.py b/lib/bb/parse/ast.py
index 785aa974e..0714296af 100644
--- a/lib/bb/parse/ast.py
+++ b/lib/bb/parse/ast.py
@@ -244,12 +244,14 @@ class AddTaskNode(AstNode):
         bb.build.addtask(self.func, self.before, self.after, data)
 
 class DelTaskNode(AstNode):
-    def __init__(self, filename, lineno, func):
+    def __init__(self, filename, lineno, tasks):
         AstNode.__init__(self, filename, lineno)
-        self.func = func
+        self.tasks = tasks
 
     def eval(self, data):
-        bb.build.deltask(self.func, data)
+        tasks = data.expand(self.tasks).split()
+        for task in tasks:
+            bb.build.deltask(task, data)
 
 class BBHandlerNode(AstNode):
     def __init__(self, filename, lineno, fns):
@@ -305,7 +307,7 @@ def handleAddTask(statements, filename, lineno, m):
     statements.append(AddTaskNode(filename, lineno, func, before, after))
 
 def handleDelTask(statements, filename, lineno, m):
-    func = m.group("func")
+    func = m.group(1)
     if func is None:
         return
 
diff --git a/lib/bb/parse/parse_py/BBHandler.py b/lib/bb/parse/parse_py/BBHandler.py
index 6e216effb..215f940b6 100644
--- a/lib/bb/parse/parse_py/BBHandler.py
+++ b/lib/bb/parse/parse_py/BBHandler.py
@@ -26,7 +26,7 @@ __func_start_regexp__    = re.compile(r"(((?P<py>python)|(?P<fr>fakeroot))\s*)*(
 __inherit_regexp__       = re.compile(r"inherit\s+(.+)" )
 __export_func_regexp__   = re.compile(r"EXPORT_FUNCTIONS\s+(.+)" )
 __addtask_regexp__       = re.compile(r"addtask\s+(?P<func>\w+)\s*((before\s*(?P<before>((.*(?=after))|(.*))))|(after\s*(?P<after>((.*(?=before))|(.*)))))*")
-__deltask_regexp__       = re.compile(r"deltask\s+(?P<func>\w+)(?P<ignores>.*)")
+__deltask_regexp__       = re.compile(r"deltask\s+(.+)")
 __addhandler_regexp__    = re.compile(r"addhandler\s+(.+)" )
 __def_regexp__           = re.compile(r"def\s+(\w+).*:" )
 __python_func_regexp__   = re.compile(r"(\s+.*)|(^$)|(^#)" )
@@ -238,9 +238,6 @@ def feeder(lineno, s, fn, root, statements, eof=False):
 
     m = __deltask_regexp__.match(s)
     if m:
-        # Check and warn "for deltask task1 task2"
-        if m.group('ignores'):
-            logger.warning('deltask ignored: "%s"' % m.group('ignores'))
         ast.handleDelTask(statements, fn, lineno, m)
         return
 
diff --git a/lib/bb/tests/parse.py b/lib/bb/tests/parse.py
index 9afd1b208..9e21e1842 100644
--- a/lib/bb/tests/parse.py
+++ b/lib/bb/tests/parse.py
@@ -178,7 +178,10 @@ python () {
 addtask do_patch after do_foo after do_unpack before do_configure before do_compile
 addtask do_fetch do_patch
 
-deltask do_fetch do_patch
+MYVAR = "do_patch"
+EMPTYVAR = ""
+deltask do_fetch ${MYVAR} ${EMPTYVAR}
+deltask ${EMPTYVAR}
 """
     def test_parse_addtask_deltask(self):
         import sys
@@ -189,6 +192,5 @@ deltask do_fetch do_patch
         self.assertTrue("addtask contained multiple 'before' keywords" in stdout)
         self.assertTrue("addtask contained multiple 'after' keywords" in stdout)
         self.assertTrue('addtask ignored: " do_patch"' in stdout)
-        self.assertTrue('deltask ignored: " do_patch"' in stdout)
         #self.assertTrue('dependent task do_foo for do_patch does not exist' in stdout)