[OE-core] [PATCH 3/3] devtool: run kernel dependencies

[Markus Lehtonen]

The kernel package needs "kern-tools-native" in order for it's
do_kernel_metadata. Thus, devtool extract for kernel in a pristine
environment fails. With the current bb.tinfoil implementation it is not
possible to run arbitrary bitbake commands - e.g. run
"bitbake kern-tools-native -c populate_sysroot" in our case. This patch
implements an ugly workaround for that problem, basically by hardcoding
this dependency and running the required bitbake task(s) before tinfoil
is initialized.

[YOCTO #6658]

Signed-off-by: Markus Lehtonen <markus.lehtonen at linux.intel.com>
---
 scripts/lib/devtool/standard.py | 19 ++++++++++++++++++-
 1 file changed, 18 insertions(+), 1 deletion(-)

diff --git a/scripts/lib/devtool/standard.py b/scripts/lib/devtool/standard.py
index 3725d87..bf24e32 100644
--- a/scripts/lib/devtool/standard.py
+++ b/scripts/lib/devtool/standard.py
@@ -197,6 +197,8 @@ def extract(args, config, basepath, workspace):
     """Entry point for the devtool 'extract' subcommand"""
     import bb
 
+    _check_extract_deps(config, basepath, args.recipename)
+
     tinfoil = setup_tinfoil()
 
     rd = _parse_recipe(config, tinfoil, args.recipename, True)
@@ -237,6 +239,20 @@ class BbTaskExecutor(object):
             self.executed.append(func)
 
 
+def _check_extract_deps(config, basepath, recipename):
+    """HACK: Ugly workaround for making sure that requirements are met when
+       trying to extract a package"""
+    tinfoil = setup_tinfoil()
+    rd = _parse_recipe(config, tinfoil, recipename, True)
+    if bb.data.inherits_class('kernel-yocto', rd):
+        tinfoil.shutdown()
+        try:
+            stdout, _ = exec_build_env_command(config.init_path, basepath,
+                                               'bitbake kern-tools-native')
+        except bb.process.ExecutionError as err:
+            raise DevtoolError("Failed to build kern-tools-native:\n%s" %
+                               err.stdout)
+
 def _extract_source(srctree, keep_temp, devbranch, d):
     """Extract sources of a recipe"""
     import bb.event
@@ -422,7 +438,8 @@ def modify(args, config, basepath, workspace):
         raise DevtoolError("directory %s does not exist or not a directory "
                            "(specify -x to extract source from recipe)" %
                            args.srctree)
-
+    if args.extract:
+        _check_extract_deps(config, basepath, args.recipename)
     tinfoil = setup_tinfoil()
 
     rd = _parse_recipe(config, tinfoil, args.recipename, True)
-- 
2.1.4