Merge branch 'master' into stylechecker

1 files changed, 47 insertions, 0 deletions

diff --git a/tools/indent.py b/tools/indent.py
new file mode 100755
index 0000000000..139049b670
--- /dev/null
+++ b/tools/indent.py
@@ -0,0 +1,47 @@
+#!/usr/bin/env python
+# -*- coding: utf-8 -*-
+# 2017 by David Lamparter, placed in public domain
+
+import sys, re, subprocess, os
+
+# find all DEFUNs
+defun_re = re.compile(
+        r'^((DEF(UN(|_ATTR|_CMD_(ELEMENT|FUNC_(DECL|TEXT))|_DEPRECATED|_NOSH|_HIDDEN|SH(|_ATTR|_DEPRECATED|_HIDDEN))?|PY)|ALIAS)\s*\(.*?)^(?=\s*\{)',
+        re.M | re.S)
+define_re = re.compile(
+        r'((^#\s*define[^\n]+[^\\]\n)+)',
+        re.M | re.S)
+# find clang-format control that we just inserted
+clean_re = re.compile(
+        r'^.*/\* \$FRR indent\$ \*/\s*\n\s*/\* clang-format (on|off) \*/\s*\n',
+        re.M)
+
+def wrap_file(fn):
+    with open(fn, 'r') as fd:
+        text = fd.read()
+
+        repl = r'/* $FRR indent$ */\n/* clang-format off */\n' + \
+                r'\1' + \
+                r'/* $FRR indent$ */\n/* clang-format on */\n'
+
+        # around each DEFUN, insert an indent-on/off comment
+        text = defun_re.sub(repl, text)
+        text = define_re.sub(repl, text)
+
+        ci = subprocess.Popen(['clang-format'], stdin = subprocess.PIPE, stdout = subprocess.PIPE)
+        stdout, ign = ci.communicate(text)
+        ci.wait()
+        if ci.returncode != 0:
+            raise IOError('clang-format returned %d' % (ci.returncode))
+
+        # remove the bits we inserted above
+        final = clean_re.sub('', stdout)
+
+        tmpname = fn + '.indent'
+        with open(tmpname, 'w') as ofd:
+            ofd.write(final)
+        os.rename(tmpname, fn)
+
+if __name__ == '__main__':
+    for fn in sys.argv[1:]:
+        wrap_file(fn)