devtool: extract: refactor kern-tools-native handling

When extracting linux-yocto kernel source, we don't need to dance around
shutting down and starting up tinfoil anymore, we can just execute the
tasks as needed when needed using tinfoil's new build_targets()
function. This allows us to tidy up the code structure a bit.

(From OE-Core rev: 5c7f5031023fb74b5f2f26d6b3c829981f2f54d2)

Signed-off-by: Paul Eggleton <paul.eggleton@linux.intel.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>

scripts/lib/devtool/standard.py

@@ -383,7 +383,7 @@ def extract(args, config, basepath, workspace):
     """Entry point for the devtool 'extract' subcommand"""
     import bb
 
-    tinfoil = _prep_extract_operation(config, basepath, args.recipename)
+    tinfoil = setup_tinfoil(basepath=basepath)
     if not tinfoil:
         # Error already shown
         return 1
@@ -407,7 +407,7 @@ def sync(args, config, basepath, workspace):
     """Entry point for the devtool 'sync' subcommand"""
     import bb
 
-    tinfoil = _prep_extract_operation(config, basepath, args.recipename)
+    tinfoil = setup_tinfoil(basepath=basepath)
     if not tinfoil:
         # Error already shown
         return 1
@@ -428,29 +428,6 @@ def sync(args, config, basepath, workspace):
         tinfoil.shutdown()
 
 
-def _prep_extract_operation(config, basepath, recipename, tinfoil=None):
-    """HACK: Ugly workaround for making sure that requirements are met when
-       trying to extract a package. Returns the tinfoil instance to be used."""
-    if not tinfoil:
-        tinfoil = setup_tinfoil(basepath=basepath)
-
-    rd = parse_recipe(config, tinfoil, recipename, True)
-    if not rd:
-        tinfoil.shutdown()
-        return None
-
-    if bb.data.inherits_class('kernel-yocto', rd):
-        tinfoil.shutdown()
-        try:
-            stdout, _ = exec_build_env_command(config.init_path, basepath,
-                                               'bitbake kern-tools-native')
-            tinfoil = setup_tinfoil(basepath=basepath)
-        except bb.process.ExecutionError as err:
-            raise DevtoolError("Failed to build kern-tools-native:\n%s" %
-                               err.stdout)
-    return tinfoil
-
-
 def _extract_source(srctree, keep_temp, devbranch, sync, d, tinfoil):
     """Extract sources of a recipe"""
     import oe.recipeutils
@@ -475,6 +452,9 @@ def _extract_source(srctree, keep_temp, devbranch, sync, d, tinfoil):
             raise DevtoolError("The %s recipe has do_unpack disabled, unable to "
                                "extract source" % pn, 4)
 
+    if bb.data.inherits_class('kernel-yocto', d):
+        tinfoil.build_targets('kern-tools-native')
+
     if not sync:
         # Prepare for shutil.move later on
         bb.utils.mkdirhier(srctree)
@@ -773,13 +753,6 @@ def modify(args, config, basepath, workspace):
             raise DevtoolError("--no-extract specified and source path %s does "
                             "not exist or is not a directory" %
                             srctree)
-        if not args.no_extract:
-            tinfoil = _prep_extract_operation(config, basepath, pn, tinfoil)
-            if not tinfoil:
-                # Error already shown
-                return 1
-            # We need to re-parse because tinfoil may have been re-initialised
-            rd = parse_recipe(config, tinfoil, args.recipename, True)
 
         recipefile = rd.getVar('FILE')
         appendfile = recipe_to_append(recipefile, config, args.wildcard)