Copy data files to the remote runner.

Summary:
The data files for any given test will be in the same directory as the
source with a file name that matches *.dat. To make these available to
tests running remotely (such as over adb or ssh), copy them into the
test's remote working directory.

Note that we will perform more copies than we actually need. The data
files in the directory may only be used by one of the tests, but will
be copied for all tests in the same directory.

This patch also moves the remote test binary into the working
directory (previously it was only invoked from the working directory
rather than existing in it).

Reviewers: EricWF, jroelofs

Reviewed By: jroelofs

Subscribers: cfe-commits

Differential Revision: http://reviews.llvm.org/D8118

git-svn-id: https://llvm.org/svn/llvm-project/libcxx/trunk@231864 91177308-0d34-0410-b5e6-96231b3b80d8

test/libcxx/test/executor.py

@@ -6,7 +6,7 @@ from lit.util import executeCommand  # pylint: disable=import-error
 
 
 class Executor(object):
-    def run(self, exe_path, cmd, local_cwd, env=None):
+    def run(self, exe_path, cmd, local_cwd, file_deps=None, env=None):
         """Execute a command.
             Be very careful not to change shared state in this function.
             Executor objects are shared between python processes in `lit -jN`.
@@ -14,6 +14,7 @@ class Executor(object):
             exe_path: str:    Local path to the executable to be run
             cmd: [str]:       subprocess.call style command
             local_cwd: str:   Local path to the working directory
+            file_deps: [str]: Files required by the test
             env: {str: str}:  Environment variables to execute under
         Returns:
             out, err, exitCode
@@ -25,7 +26,7 @@ class LocalExecutor(Executor):
     def __init__(self):
         super(LocalExecutor, self).__init__()
 
-    def run(self, exe_path, cmd=None, work_dir='.', env=None):
+    def run(self, exe_path, cmd=None, work_dir='.', file_deps=None, env=None):
         cmd = cmd or [exe_path]
         env_cmd = []
         if env:
@@ -48,10 +49,10 @@ class PrefixExecutor(Executor):
         self.commandPrefix = commandPrefix
         self.chain = chain
 
-    def run(self, exe_path, cmd=None, work_dir='.', env=None):
+    def run(self, exe_path, cmd=None, work_dir='.', file_deps=None, env=None):
         cmd = cmd or [exe_path]
         return self.chain.run(exe_path, self.commandPrefix + cmd, work_dir,
-                              env=env)
+                              file_deps, env=env)
 
 
 class PostfixExecutor(Executor):
@@ -62,9 +63,10 @@ class PostfixExecutor(Executor):
         self.commandPostfix = commandPostfix
         self.chain = chain
 
-    def run(self, exe_path, cmd=None, work_dir='.', env=None):
+    def run(self, exe_path, cmd=None, work_dir='.', file_deps=None, env=None):
         cmd = cmd or [exe_path]
-        return self.chain.run(cmd + self.commandPostfix, work_dir, env=env)
+        return self.chain.run(cmd + self.commandPostfix, work_dir, file_deps,
+                              env=env)
 
 
 
@@ -107,24 +109,28 @@ class RemoteExecutor(Executor):
             # TODO: Log failure to delete?
             pass
 
-    def run(self, exe_path, cmd=None, work_dir='.', env=None):
+    def run(self, exe_path, cmd=None, work_dir='.', file_deps=None, env=None):
         target_exe_path = None
         target_cwd = None
         try:
-            target_exe_path = self.remote_temp_file()
             target_cwd = self.remote_temp_dir()
+            target_exe_path = os.path.join(target_cwd, 'libcxx_test.exe')
             if cmd:
                 # Replace exe_path with target_exe_path.
                 cmd = [c if c != exe_path else target_exe_path for c in cmd]
             else:
                 cmd = [target_exe_path]
-            self.copy_in([exe_path], [target_exe_path])
+
+            srcs = [exe_path]
+            dsts = [target_exe_path]
+            if file_deps is not None:
+                dev_paths = [os.path.join(target_cwd, os.path.basename(f))
+                             for f in file_deps]
+                srcs.extend(file_deps)
+                dsts.extend(dev_paths)
+            self.copy_in(srcs, dsts)
             return self._execute_command_remote(cmd, target_cwd, env)
-        except:
-            raise
         finally:
-            if target_exe_path:
-                self.delete_remote(target_exe_path)
             if target_cwd:
                 self.delete_remote(target_cwd)
 

test/libcxx/test/format.py

@@ -115,8 +115,14 @@ class LibcxxTestFormat(object):
             env = None
             if self.exec_env:
                 env = self.exec_env
+            # TODO: Only list actually needed files in file_deps.
+            # Right now we just mark all of the .dat files in the same
+            # directory as dependencies, but it's likely less than that. We
+            # should add a `// FILE-DEP: foo.dat` to each test to track this.
+            data_files = [os.path.join(local_cwd, f)
+                          for f in os.listdir(local_cwd) if f.endswith('.dat')]
             out, err, rc = self.executor.run(exec_path, [exec_path],
-                                             local_cwd, env)
+                                             local_cwd, data_files, env)
             if rc != 0:
                 report = libcxx.util.makeReport(cmd, out, err, rc)
                 report = "Compiled With: %s\n%s" % (compile_cmd, report)