Bug 803400 - Add clobber mach command; r=glandium

DONTBUILD (NPOTB)

mach

@@ -32,6 +32,7 @@ SEARCH_PATHS = [
     'testing',
     'testing/xpcshell',
     'testing/mozbase/mozprocess',
+    'testing/mozbase/mozfile',
     'testing/mozbase/mozinfo',
 ]
 

python/mozbuild/mozbuild/base.py

@@ -13,6 +13,8 @@
 from mach.mixin.logging import LoggingMixin
 from mach.mixin.process import ProcessExecutionMixin
 
+from mozfile.mozfile import rmtree
+
 from .config import BuildConfig
 from .mozconfig import (
     MozconfigFindException,
@@ -82,6 +84,13 @@ def bindir(self):
     def statedir(self):
         return os.path.join(self.topobjdir, '.mozbuild')
 
+    def remove_objdir(self):
+        """Remove the entire object directory."""
+
+        # We use mozfile because it is faster than shutil.rmtree().
+        # mozfile doesn't like unicode arguments (bug 818783).
+        rmtree(self.topobjdir.encode('utf-8'))
+
     @property
     def _config_guess(self):
         if self._config_guess_output is None:

python/mozbuild/mozbuild/mach_commands.py

@@ -61,6 +61,11 @@ def on_line(line):
 
         return status
 
+    @Command('clobber', help='Clobber the tree (delete the object directory).')
+    def clobber(self):
+        self.remove_objdir()
+        return 0
+
 
 @CommandProvider
 class Warnings(MachCommandBase):