devtool: Add --remove-work option for devtool reset command

Enable --remove-work option for devtool reset command that allows user
to clean up source directory within workspace.

Currently devtool reset command only removes recipes and user is forced
to manually remove the sources directory within the workspace before
running devtool modify again.

Using devtool reset -r or devtool reset --remove-work option, user can
cleanup the sources directory along with the recipe instead of manually
cleaning it.

syntax: devtool reset -r <recipename>
    Ex: devtool reset -r zip

	devtool finish -r <recipename> <layer-name>
    Ex: devtool finish -r zip meta-yocto-bsp

(From OE-Core rev: 0d6dd01b8633ad63d77c24568a4b20852aaa366f)

Signed-off-by: Sai Hari Chandana Kalluri <chandana.kalluri@xilinx.com>
Signed-off-by: Ross Burton <ross.burton@intel.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>

scripts/lib/devtool/standard.py

@@ -1852,7 +1852,7 @@ def status(args, config, basepath, workspace):
     return 0
 
 
-def _reset(recipes, no_clean, config, basepath, workspace):
+def _reset(recipes, no_clean, remove_work, config, basepath, workspace):
     """Reset one or more recipes"""
     import oe.path
 
@@ -1930,10 +1930,15 @@ def _reset(recipes, no_clean, config, basepath, workspace):
         srctreebase = workspace[pn]['srctreebase']
         if os.path.isdir(srctreebase):
             if os.listdir(srctreebase):
-                # 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 remove_work:
+                        logger.info('-r argument used on %s, removing source tree.'
+                                    ' You will lose any unsaved work' %pn)
+                        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)
             else:
                 # This is unlikely, but if it's empty we can just remove it
                 os.rmdir(srctreebase)
@@ -1943,6 +1948,10 @@ def _reset(recipes, no_clean, config, basepath, workspace):
 def reset(args, config, basepath, workspace):
     """Entry point for the devtool 'reset' subcommand"""
     import bb
+    import shutil
+
+    recipes = ""
+
     if args.recipename:
         if args.all:
             raise DevtoolError("Recipe cannot be specified if -a/--all is used")
@@ -1957,7 +1966,7 @@ def reset(args, config, basepath, workspace):
     else:
         recipes = args.recipename
 
-    _reset(recipes, args.no_clean, config, basepath, workspace)
+    _reset(recipes, args.no_clean, args.remove_work, config, basepath, workspace)
 
     return 0
 
@@ -2009,6 +2018,7 @@ def finish(args, config, basepath, workspace):
             raise DevtoolError('Source tree is not clean:\n\n%s\nEnsure you have committed your changes or use -f/--force if you are sure there\'s nothing that needs to be committed' % dirty)
 
     no_clean = args.no_clean
+    remove_work=args.remove_work
     tinfoil = setup_tinfoil(basepath=basepath, tracking=True)
     try:
         rd = parse_recipe(config, tinfoil, args.recipename, True, False)
@@ -2160,7 +2170,7 @@ def finish(args, config, basepath, workspace):
     if args.dry_run:
         logger.info('Resetting recipe (dry-run)')
     else:
-        _reset([args.recipename], no_clean=no_clean, config=config, basepath=basepath, workspace=workspace)
+        _reset([args.recipename], no_clean=no_clean, remove_work=remove_work, config=config, basepath=basepath, workspace=workspace)
 
     return 0
 
@@ -2272,6 +2282,7 @@ def register_commands(subparsers, context):
     parser_reset.add_argument('recipename', nargs='*', help='Recipe to reset')
     parser_reset.add_argument('--all', '-a', action="store_true", help='Reset all recipes (clear workspace)')
     parser_reset.add_argument('--no-clean', '-n', action="store_true", help='Don\'t clean the sysroot to remove recipe output')
+    parser_reset.add_argument('--remove-work', '-r', action="store_true", help='Clean the sources directory along with append')
     parser_reset.set_defaults(func=reset)
 
     parser_finish = subparsers.add_parser('finish', help='Finish working on a recipe in your workspace',
@@ -2282,6 +2293,7 @@ def register_commands(subparsers, context):
     parser_finish.add_argument('--mode', '-m', choices=['patch', 'srcrev', 'auto'], default='auto', help='Update mode (where %(metavar)s is %(choices)s; default is %(default)s)', metavar='MODE')
     parser_finish.add_argument('--initial-rev', help='Override starting revision for patches')
     parser_finish.add_argument('--force', '-f', action="store_true", help='Force continuing even if there are uncommitted changes in the source tree repository')
+    parser_finish.add_argument('--remove-work', '-r', action="store_true", help='Clean the sources directory under workspace')
     parser_finish.add_argument('--no-clean', '-n', action="store_true", help='Don\'t clean the sysroot to remove recipe output')
     parser_finish.add_argument('--no-overrides', '-O', action="store_true", help='Do not handle other override branches (if they exist)')
     parser_finish.add_argument('--dry-run', '-N', action="store_true", help='Dry-run (just report changes instead of writing them)')