These are typically auto-extracted with modify/upgrade from recipes
and can be easily recreated. On the rare occasions where they need
to be reused, they are still available under workspace/attic (which
is already used for old recipes and appends), so nothing gets lost.

This avoids the annoyance of devtool refusing to proceed because
there is a previous source tree in workspace/sources.

For independent source trees behave as before: do nothing.

Adjust the test that previously deleted those trees by hand.

Signed-off-by: Alexander Kanavin <[email protected]>
---
 meta/lib/oeqa/selftest/cases/devtool.py |  2 --
 scripts/lib/devtool/standard.py         | 16 +++++++++++++---
 2 files changed, 13 insertions(+), 5 deletions(-)

diff --git a/meta/lib/oeqa/selftest/cases/devtool.py 
b/meta/lib/oeqa/selftest/cases/devtool.py
index ec08ac6d60..142932e12f 100644
--- a/meta/lib/oeqa/selftest/cases/devtool.py
+++ b/meta/lib/oeqa/selftest/cases/devtool.py
@@ -1957,7 +1957,6 @@ class DevtoolUpgradeTests(DevtoolBase):
         self._test_recipe_contents(newrecipefile, checkvars, [])
         # Try again - change just name this time
         result = runCmd('devtool reset -n %s' % newrecipename)
-        shutil.rmtree(newsrctree)
         add_recipe()
         newrecipefile = os.path.join(self.workspacedir, 'recipes', 
newrecipename, '%s_%s.bb' % (newrecipename, recipever))
         result = runCmd('devtool rename %s %s' % (recipename, newrecipename))
@@ -1970,7 +1969,6 @@ class DevtoolUpgradeTests(DevtoolBase):
         self._test_recipe_contents(newrecipefile, checkvars, [])
         # Try again - change just version this time
         result = runCmd('devtool reset -n %s' % newrecipename)
-        shutil.rmtree(newsrctree)
         add_recipe()
         newrecipefile = os.path.join(self.workspacedir, 'recipes', recipename, 
'%s_%s.bb' % (recipename, newrecipever))
         result = runCmd('devtool rename %s -V %s' % (recipename, newrecipever))
diff --git a/scripts/lib/devtool/standard.py b/scripts/lib/devtool/standard.py
index c98bfe8195..e3b74ab8f0 100644
--- a/scripts/lib/devtool/standard.py
+++ b/scripts/lib/devtool/standard.py
@@ -1975,9 +1975,19 @@ def _reset(recipes, no_clean, remove_work, config, 
basepath, workspace):
                         shutil.rmtree(srctreebase)
                     else:
                         # We don't want to risk wiping out any work in progress
-                        logger.info('Leaving source tree %s as-is; if you no '
-                                    'longer need it then please delete it 
manually'
-                                    % srctreebase)
+                        if 
srctreebase.startswith(os.path.join(config.workspace_path, 'sources')):
+                            from datetime import datetime
+                            preservesrc = os.path.join(config.workspace_path, 
'attic', 'sources', "{}.{}".format(pn,datetime.now().strftime("%Y%m%d%H%M%S")))
+                            logger.info('Preserving source tree in %s\nIf you 
no '
+                                        'longer need it then please delete it 
manually.\n'
+                                        'It is also possible to reuse it via 
devtool source tree argument.'
+                                        % preservesrc)
+                            bb.utils.mkdirhier(os.path.dirname(preservesrc))
+                            shutil.move(srctreebase, preservesrc)
+                        else:
+                            logger.info('Leaving source tree %s as-is; if you 
no '
+                                        'longer need it then please delete it 
manually'
+                                        % srctreebase)
             else:
                 # This is unlikely, but if it's empty we can just remove it
                 os.rmdir(srctreebase)
-- 
2.30.2

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