Bug 841445 - Add a 'mach run' command to launch the compiled binary [r=gps]

DONTBUILD (not part of the build)

python/mozbuild/mozbuild/mach_commands.py

@@ -338,6 +338,26 @@ class Install(MachCommandBase):
     def install(self):
         return self._run_make(directory=".", target='install', ensure_exit_code=False)
 
+@CommandProvider
+class RunProgram(MachCommandBase):
+    """Launch the compiled binary"""
+
+    @Command('run', help='Run the compiled program.', prefix_chars='+')
+    @CommandArgument('params', default=None, nargs='*',
+        help='Command-line arguments to pass to the program.')
+    def run(self, params):
+        try:
+            args = [self.get_binary_path('app')]
+        except Exception as e:
+            print("It looks like your program isn't built.",
+                "You can run |mach build| to build it.")
+            print(e)
+            return 1
+        if params:
+            args.extend(params)
+        return self.run_process(args=args, ensure_exit_code=False,
+            pass_thru=True)
+
 @CommandProvider
 class Buildsymbols(MachCommandBase):
     """Produce a package of debug symbols suitable for use with Breakpad."""