* fix: remove 'shell=True' when calling 'git diff'
Calling subprocess.Popen() with a list of args and shell=True causes
the args to be ignored, so ['git', 'diff', '--name-only', '--staged']
was turning into just 'git'. Instead of getting a list of changed
files, we got the --help message.
Two possible fixes: change it from a list to a single string, or remove
'shell=True'. The shell doesn't seem to be needed, so I chose that.
More reading: https://stackoverflow.com/questions/26417658/subprocess-call-arguments-ignored-when-using-shell-true-w-list
* fix: remove 'shell=True' when calling clang-format
Same problem / rationale as previous commit.
* fix: re-add shell=True for win; use different fix
* add second arg to hook
* fix clang-format script
* remove format script
* help
* first pass at only checking formatting for changed files
* ensure clang-format only runs against changes
* add quiet option for print output
* fix script outputs for clang-format
* wrap conditional for exit error
* remove cpplint include ordering from brightray
* fix python style errors
* add clang-format to linting
* fix var error and add mm extension
* fix diff checking for commit hook
* show incorrectly formatted lines when linting fails
* don't try to check formatting for deleted files
