recipetool: add appendfile subcommand

Locating which recipe provides a file in an image that you want to
modify and then figuring out how to bbappend the recipe in order to
replace it can be a tedious process. Thus, add a new appendfile
subcommand to recipetool, providing the ability to create a bbappend
file to add/replace any file in the target system. Without the -r
option, it will search for the recipe packaging the specified file
(using pkgdata from previously built recipes). The bbappend will be
created at the appropriate path within the specified layer directory
(which may or may not be in your bblayers.conf) or if one already exists
it will be updated appropriately.

Fairly extensive oe-selftest tests are also provided.

Implements [YOCTO #6447].

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

1 files changed, 30 insertions, 1 deletions

diff --git a/meta/lib/oeqa/selftest/devtool.py b/meta/lib/oeqa/selftest/devtool.py
index f4571c4ef1..ad10af5826 100644
--- a/meta/lib/oeqa/selftest/devtool.py
+++ b/meta/lib/oeqa/selftest/devtool.py
@@ -8,7 +8,7 @@ import glob
 
 import oeqa.utils.ftools as ftools
 from oeqa.selftest.base import oeSelfTest
-from oeqa.utils.commands import runCmd, bitbake, get_bb_var
+from oeqa.utils.commands import runCmd, bitbake, get_bb_var, create_temp_layer
 from oeqa.utils.decorators import testcase
 
 class DevtoolBase(oeSelfTest):
@@ -31,6 +31,35 @@ class DevtoolBase(oeSelfTest):
         for inherit in checkinherits:
             self.assertIn(inherit, inherits, 'Missing inherit of %s' % inherit)
 
+    def _check_bbappend(self, testrecipe, recipefile, appenddir):
+        result = runCmd('bitbake-layers show-appends', cwd=self.builddir)
+        resultlines = result.output.splitlines()
+        inrecipe = False
+        bbappends = []
+        bbappendfile = None
+        for line in resultlines:
+            if inrecipe:
+                if line.startswith(' '):
+                    bbappends.append(line.strip())
+                else:
+                    break
+            elif line == '%s:' % os.path.basename(recipefile):
+                inrecipe = True
+        self.assertLessEqual(len(bbappends), 2, '%s recipe is being bbappended by another layer - bbappends found:\n  %s' % (testrecipe, '\n  '.join(bbappends)))
+        for bbappend in bbappends:
+            if bbappend.startswith(appenddir):
+                bbappendfile = bbappend
+                break
+        else:
+            self.assertTrue(False, 'bbappend for recipe %s does not seem to be created in test layer' % testrecipe)
+        return bbappendfile
+
+    def _create_temp_layer(self, templayerdir, addlayer, templayername, priority=999, recipepathspec='recipes-*/*'):
+        create_temp_layer(templayerdir, templayername, priority, recipepathspec)
+        if addlayer:
+            self.add_command_to_tearDown('bitbake-layers remove-layer %s || true' % templayerdir)
+            result = runCmd('bitbake-layers add-layer %s' % templayerdir, cwd=self.builddir)
+
 
 class DevtoolTests(DevtoolBase):