Add script to clang-format the entire repo.

.clang-format

@@ -2,7 +2,7 @@
 BasedOnStyle: Google
 
 IndentWidth: 2
-ContinuationIndentWidth: 2
+ContinuationIndentWidth: 4
 UseTab: Never
 MaxEmptyLinesToKeep: 2
 

docs/contribute.rst

@@ -43,3 +43,9 @@ before submitting a pull request::
 
   $ apt-get install clang-format clang-format-6.0
   $ clang-format-6.0 --style=file -i *.proto *.cc *.h
+
+For convenience there is a format.py script in tools/ that can be used
+to clang-format all files within the repo::
+
+  $ cd .../tensorrt-inference-server    # top-level of repo
+  $ python format.py *

tools/format.py

@@ -0,0 +1,92 @@
+#!/usr/bin/python
+
+# Copyright (c) 2018, NVIDIA CORPORATION. All rights reserved.
+#
+# Redistribution and use in source and binary forms, with or without
+# modification, are permitted provided that the following conditions
+# are met:
+#  * Redistributions of source code must retain the above copyright
+#    notice, this list of conditions and the following disclaimer.
+#  * Redistributions in binary form must reproduce the above copyright
+#    notice, this list of conditions and the following disclaimer in the
+#    documentation and/or other materials provided with the distribution.
+#  * Neither the name of NVIDIA CORPORATION nor the names of its
+#    contributors may be used to endorse or promote products derived
+#    from this software without specific prior written permission.
+#
+# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS ``AS IS'' AND ANY
+# EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+# IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
+# PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE COPYRIGHT OWNER OR
+# CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
+# EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+# PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
+# PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
+# OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+# (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+# OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+import argparse
+import os
+import subprocess
+
+FLAGS = None
+FORMAT_EXTS = ('proto', 'cc', 'h')
+SKIP_PATHS = ('tools',)
+
+def visit(path):
+    if FLAGS.verbose:
+        print("visiting " + path)
+
+    valid_ext = False
+    for ext in FORMAT_EXTS:
+        if path.endswith('.' + ext):
+            valid_ext = True
+            break
+    if not valid_ext:
+        if FLAGS.verbose:
+            print("skipping due to extension: " + path)
+        return True
+
+    for skip in SKIP_PATHS:
+        if path.startswith(skip):
+            if FLAGS.verbose:
+                print("skipping due to path prefix: " + path)
+            return True
+
+    args = ['clang-format-6.0', '--style=file', '-i']
+    if FLAGS.verbose:
+        args.append('-verbose')
+    args.append(path)
+
+    ret = subprocess.call(args)
+    if ret != 0:
+        print("format failed for " + path)
+        return False
+
+    return True
+
+if __name__ == '__main__':
+    parser = argparse.ArgumentParser()
+    parser.add_argument('-v', '--verbose', action="store_true", required=False, default=False,
+                        help='Enable verbose output')
+    parser.add_argument('paths', type=str, nargs='*', default=None,
+                        help='Directories or files to format')
+    FLAGS = parser.parse_args()
+
+    if (FLAGS.paths is None) or (len(FLAGS.paths) == 0):
+        parser.print_help()
+        exit(1)
+
+    ret = True
+    for path in FLAGS.paths:
+        if not os.path.isdir(path):
+            if not visit(path):
+                ret = False
+        else:
+            for root, dirs, files in os.walk(path):
+                for name in files:
+                    if not visit(os.path.join(root, name)):
+                        ret = False
+
+    exit(0 if ret else 1)