Update the remote test launch utility (utils/remote-exec.py).

Allowed a single file execution without the execution directory.

llvm/utils/remote-exec.py

@@ -41,7 +41,7 @@ def scp(args, src, dst):
 def main():
     parser = argparse.ArgumentParser()
     parser.add_argument('--host', type=str, required=True)
-    parser.add_argument('--execdir', type=str, required=True)
+    parser.add_argument('--execdir', type=str, required=False)
     parser.add_argument('--extra-ssh-args', type=str, required=False)
     parser.add_argument('--extra-scp-args', type=str, required=False)
     parser.add_argument('--codesign_identity', type=str, required=False, default=None)
@@ -55,7 +55,7 @@ def main():
     # and changing their path when running on the remote host. It's also possible
     # for there to be no such executable, for example in the case of a .sh.cpp
     # test.
-    parser.add_argument('--exec-pattern', type=str, required=False, default='.*\.tmp\.exe',
+    parser.add_argument('--exec-pattern', type=str, required=False, default='.*',
                         help='The name regex pattern of the executables generated by \
                               a test file. Specifying it allows us to do custom \
                               processing like codesigning test-executables \
@@ -68,6 +68,15 @@ def main():
     args = parser.parse_args()
     commandLine = args.command
 
+    execdir = args.execdir
+    if execdir == '.':
+        # Retrieve the exec directory from the command line.
+        execdir, _ = os.path.split(commandLine[0])
+        if execdir == '':
+            # Get the current directory in that case.
+            execdir = os.getcwd()
+    arcname = os.path.basename(execdir) if execdir else None
+
     # Create a temporary directory where the test will be run.
     # That is effectively the value of %T on the remote host.
     tmp = subprocess.check_output(
@@ -78,6 +87,8 @@ def main():
     isExecutable = lambda exe: re.match(args.exec_pattern, exe) and os.path.exists(exe)
     pathOnRemote = lambda file: posixpath.join(tmp, os.path.basename(file))
 
+    remoteCommands = []
+
     try:
         # Do any necessary codesigning of test-executables found in the command line.
         if args.codesign_identity:
@@ -88,10 +99,11 @@ def main():
 
         # tar up the execution directory (which contains everything that's needed
         # to run the test), and copy the tarball over to the remote host.
+        if execdir:
             try:
                 tmpTar = tempfile.NamedTemporaryFile(suffix='.tar', delete=False)
                 with tarfile.open(fileobj=tmpTar, mode='w') as tarball:
-                tarball.add(args.execdir, arcname=os.path.basename(args.execdir))
+                    tarball.add(execdir, arcname=arcname)
 
                 # Make sure we close the file before we scp it, because accessing
                 # the temporary file while still open doesn't work on Windows.
@@ -105,10 +117,16 @@ def main():
                 os.remove(tmpTar.name)
 
             # Untar the dependencies in the temporary directory and remove the tarball.
-        remoteCommands = [
+            remoteCommands.extend([
                 'tar -xf {} -C {} --strip-components 1'.format(remoteTarball, tmp),
                 'rm {}'.format(remoteTarball)
-        ]
+            ])
+        else:
+            # Copy only the files, which are specified in the command line.
+            # Copy them to remote host one by one.
+            for x in commandLine:
+                _, f = os.path.split(x)
+                subprocess.check_call(scp(args, x, pathOnRemote(f)))
 
         # Make sure all executables in the remote command line have 'execute'
         # permissions on the remote host. The host that compiled the test-executable