1#!/bin/bash
2
3# The latest version of this hook is available on GitHub;
4#   https://github.com/sheredom/git-hooks
5#
6# This is free and unencumbered software released into the public domain.
7#
8# Anyone is free to copy, modify, publish, use, compile, sell, or
9# distribute this software, either in source code form or as a compiled
10# binary, for any purpose, commercial or non-commercial, and by any
11# means.
12#
13# In jurisdictions that recognize copyright laws, the author or authors
14# of this software dedicate any and all copyright interest in the
15# software to the public domain. We make this dedication for the benefit
16# of the public at large and to the detriment of our heirs and
17# successors. We intend this dedication to be an overt act of
18# relinquishment in perpetuity of all present and future rights to this
19# software under copyright law.
20#
21# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
22# EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
23# MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
24# IN NO EVENT SHALL THE AUTHORS BE LIABLE FOR ANY CLAIM, DAMAGES OR
25# OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
26# ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
27# OTHER DEALINGS IN THE SOFTWARE.
28#
29# For more information, please refer to <http://unlicense.org/>
30
31# find out where clang-format is
32exe=$(which clang-format)
33
34if [ -n "$exe" ]
35then
36  # set the field separator to new line
37  IFS=$'\n'
38
39  echo "Files formatted:"
40  files=$(git diff --cached --diff-filter=AM --name-only | grep -E ".hpp$|.cpp$" | grep -v "^lib/")
41
42  # format the files
43  echo $files | xargs -n20 -P6 clang-format -i
44
45  echo $files | xargs git diff --name-only
46
47  # and then add the file (so that any formatting changes get committed)
48  echo $files | xargs git add
49else
50  echo "WARNING: clang-format was not found, cannot format files!"
51fi
52