r181617 - Reformat clang-format help strings, filter out irrelevant options.

Alexander Kornienko alexfh at google.com
Mon May 13 03:43:21 PDT 2013


I'm pretty sure I don't intentionally hand-format code after clang-format.
But I also don't specially clang-format everything before commit. So assume
that anything not clang-formatted you find in my commits is purely
unintentional. If you want to avoid this, we should probably think of an
automated way to run clang-format over itself as a part of tests or
something.
On May 13, 2013 12:22 PM, "Daniel Jasper" <djasper at google.com> wrote:

> Sorry, turns out, I was just not able to use clang-format with the right
> parameters .. :-/
>
>
> On Mon, May 13, 2013 at 12:20 PM, Daniel Jasper <djasper at google.com>wrote:
>
>>
>>
>>
>> On Fri, May 10, 2013 at 8:12 PM, Alexander Kornienko <alexfh at google.com>wrote:
>>
>>> Author: alexfh
>>> Date: Fri May 10 13:12:00 2013
>>> New Revision: 181617
>>>
>>> URL: http://llvm.org/viewvc/llvm-project?rev=181617&view=rev
>>> Log:
>>> Reformat clang-format help strings, filter out irrelevant options.
>>>
>>> Summary: +updated ClangFormat.rst
>>>
>>> Reviewers: djasper, klimek
>>>
>>> Reviewed By: klimek
>>>
>>> CC: cfe-commits
>>>
>>> Differential Revision: http://llvm-reviews.chandlerc.com/D780
>>>
>>> Modified:
>>>     cfe/trunk/docs/ClangFormat.rst
>>>     cfe/trunk/tools/clang-format/ClangFormat.cpp
>>>
>>> Modified: cfe/trunk/docs/ClangFormat.rst
>>> URL:
>>> http://llvm.org/viewvc/llvm-project/cfe/trunk/docs/ClangFormat.rst?rev=181617&r1=181616&r2=181617&view=diff
>>>
>>> ==============================================================================
>>> --- cfe/trunk/docs/ClangFormat.rst (original)
>>> +++ cfe/trunk/docs/ClangFormat.rst Fri May 10 13:12:00 2013
>>> @@ -20,21 +20,43 @@ to format C/C++/Obj-C code.
>>>
>>>    If no arguments are specified, it formats the code from standard input
>>>    and writes the result to the standard output.
>>> -  If <file> is given, it reformats the file. If -i is specified together
>>> -  with <file>, the file is edited in-place. Otherwise, the result is
>>> -  written to the standard output.
>>> +  If <file>s are given, it reformats the files. If -i is specified
>>> +  together with <file>s, the files are edited in-place. Otherwise, the
>>> +  result is written to the standard output.
>>>
>>> -  USAGE: clang-format [options] [<file>]
>>> +  USAGE: clang-format [options] [<file> ...]
>>>
>>>    OPTIONS:
>>> -    -fatal-assembler-warnings - Consider warnings as error
>>> -    -help                     - Display available options (-help-hidden
>>> for more)
>>> -    -i                        - Inplace edit <file>, if specified.
>>> -    -length=<int>             - Format a range of this length, -1 for
>>> end of file.
>>> -    -offset=<int>             - Format a range starting at this file
>>> offset.
>>> -    -stats                    - Enable statistics output from program
>>> -    -style=<string>           - Coding style, currently supports: LLVM,
>>> Google, Chromium.
>>> -    -version                  - Display the version of this program
>>> +
>>> +  Clang-format options:
>>> +
>>> +    -dump-config             - Dump configuration options to stdout and
>>> exit.
>>> +                               Can be used with -style option.
>>> +    -i                       - Inplace edit <file>s, if specified.
>>> +    -length=<uint>           - Format a range of this length (in bytes).
>>> +                               Multiple ranges can be formatted by
>>> specifying
>>> +                               several -offset and -length pairs.
>>> +                               When only a single -offset is specified
>>> without
>>> +                               -length, clang-format will format up to
>>> the end
>>> +                               of the file.
>>> +                               Can only be used with one input file.
>>> +    -offset=<uint>           - Format a range starting at this byte
>>> offset.
>>> +                               Multiple ranges can be formatted by
>>> specifying
>>> +                               several -offset and -length pairs.
>>> +                               Can only be used with one input file.
>>> +    -output-replacements-xml - Output replacements as XML.
>>> +    -style=<string>          - Coding style, currently supports:
>>> +                                 LLVM, Google, Chromium, Mozilla.
>>> +                               Use '-style file' to load style
>>> configuration from
>>> +                               .clang-format file located in one of the
>>> parent
>>> +                               directories of the source file (or
>>> current
>>> +                               directory for stdin).
>>> +
>>> +  General options:
>>> +
>>> +    -help                    - Display available options (-help-hidden
>>> for more)
>>> +    -help-list               - Display list of available options
>>> (-help-list-hidden for more)
>>> +    -version                 - Display the version of this program
>>>
>>>
>>>  Vim Integration
>>>
>>> Modified: cfe/trunk/tools/clang-format/ClangFormat.cpp
>>> URL:
>>> http://llvm.org/viewvc/llvm-project/cfe/trunk/tools/clang-format/ClangFormat.cpp?rev=181617&r1=181616&r2=181617&view=diff
>>>
>>> ==============================================================================
>>> --- cfe/trunk/tools/clang-format/ClangFormat.cpp (original)
>>> +++ cfe/trunk/tools/clang-format/ClangFormat.cpp Fri May 10 13:12:00 2013
>>> @@ -23,43 +23,57 @@
>>>  #include "llvm/Support/Debug.h"
>>>  #include "llvm/Support/FileSystem.h"
>>>  #include "llvm/Support/Signals.h"
>>> +#include "llvm/ADT/StringMap.h"
>>>
>>>  using namespace llvm;
>>>
>>>  static cl::opt<bool> Help("h", cl::desc("Alias for -help"), cl::Hidden);
>>>
>>> -static cl::list<unsigned> Offsets(
>>> -    "offset",
>>> -    cl::desc(
>>> -        "Format a range starting at this byte offset. Multiple ranges
>>> can be "
>>> -        "formatted by specifying several -offset and -length pairs. Can
>>> "
>>> -        "only be used with one input file."));
>>> -static cl::list<unsigned> Lengths(
>>> -    "length",
>>> -    cl::desc("Format a range of this length (in bytes). Multiple ranges
>>> can be "
>>> -             "formatted by specifying several -offset and -length
>>> pairs. When "
>>> -             "only a single -offset is specified without -length,
>>> clang-format "
>>> -             "will format up to the end of the file. Can only be used
>>> with one "
>>> -             "input file."));
>>> -static cl::opt<std::string> Style(
>>> -    "style",
>>> -    cl::desc(
>>> -        "Coding style, currently supports: LLVM, Google, Chromium,
>>> Mozilla. "
>>> -        "Use '-style file' to load style configuration from
>>> .clang-format file "
>>> -        "located in one of the parent directories of the source file
>>> (or "
>>> -        "current directory for stdin)."),
>>> -    cl::init("LLVM"));
>>> +// Mark all our options with this category, everything else (except for
>>> -version
>>> +// and -help) will be hidden.
>>> +cl::OptionCategory ClangFormatCategory("Clang-format options");
>>> +
>>> +static cl::list<unsigned>
>>> +    Offsets("offset",
>>> +            cl::desc("Format a range starting at this byte offset.\n"
>>> +                     "Multiple ranges can be formatted by specifying\n"
>>> +                     "several -offset and -length pairs.\n"
>>> +                     "Can only be used with one input file."),
>>> +            cl::cat(ClangFormatCategory));
>>>
>>
>> I think we should try to keep clang-format's files "clang-format clean".
>> Is there something you found particularly bad about the way clang-format
>> formats this? Can we fix it?
>>
>>
>>> +static cl::list<unsigned>
>>> +    Lengths("length",
>>> +            cl::desc("Format a range of this length (in bytes).\n"
>>> +                     "Multiple ranges can be formatted by specifying\n"
>>> +                     "several -offset and -length pairs.\n"
>>> +                     "When only a single -offset is specified without\n"
>>> +                     "-length, clang-format will format up to the end\n"
>>> +                     "of the file.\n"
>>> +                     "Can only be used with one input file."),
>>> +            cl::cat(ClangFormatCategory));
>>> +static cl::opt<std::string>
>>> +    Style("style",
>>> +          cl::desc("Coding style, currently supports:\n"
>>> +                   "  LLVM, Google, Chromium, Mozilla.\n"
>>> +                   "Use '-style file' to load style configuration
>>> from\n"
>>> +                   ".clang-format file located in one of the parent\n"
>>> +                   "directories of the source file (or current\n"
>>> +                   "directory for stdin)."),
>>> +          cl::init("LLVM"), cl::cat(ClangFormatCategory));
>>>  static cl::opt<bool> Inplace("i",
>>> -                             cl::desc("Inplace edit <file>s, if
>>> specified."));
>>> +                             cl::desc("Inplace edit <file>s, if
>>> specified."),
>>> +                             cl::cat(ClangFormatCategory));
>>>
>>> -static cl::opt<bool> OutputXML(
>>> -    "output-replacements-xml", cl::desc("Output replacements as XML."));
>>> +static cl::opt<bool> OutputXML("output-replacements-xml",
>>> +                               cl::desc("Output replacements as XML."),
>>> +                               cl::cat(ClangFormatCategory));
>>>  static cl::opt<bool>
>>>      DumpConfig("dump-config",
>>> -               cl::desc("Dump configuration options to stdout and exit.
>>> Can be used with -style option."));
>>> +               cl::desc("Dump configuration options to stdout and
>>> exit.\n"
>>> +                        "Can be used with -style option."),
>>> +               cl::cat(ClangFormatCategory));
>>>
>>> -static cl::list<std::string> FileNames(cl::Positional,
>>> -                                       cl::desc("[<file> ...]"));
>>> +static cl::list<std::string> FileNames(cl::Positional,
>>> cl::desc("[<file> ...]"),
>>> +                                       cl::cat(ClangFormatCategory));
>>>
>>>  namespace clang {
>>>  namespace format {
>>> @@ -196,6 +210,17 @@ static bool format(std::string FileName)
>>>
>>>  int main(int argc, const char **argv) {
>>>    llvm::sys::PrintStackTraceOnErrorSignal();
>>> +
>>> +  // Hide unrelated options.
>>> +  StringMap<cl::Option*> Options;
>>> +  cl::getRegisteredOptions(Options);
>>> +  for (StringMap<cl::Option *>::iterator I = Options.begin(), E =
>>> Options.end();
>>> +       I != E; ++I) {
>>> +    if (I->second->Category != &ClangFormatCategory && I->first() !=
>>> "help" &&
>>> +        I->first() != "version")
>>> +      I->second->setHiddenFlag(cl::ReallyHidden);
>>> +  }
>>> +
>>>    cl::ParseCommandLineOptions(
>>>        argc, argv,
>>>        "A tool to format C/C++/Obj-C code.\n\n"
>>>
>>>
>>> _______________________________________________
>>> cfe-commits mailing list
>>> cfe-commits at cs.uiuc.edu
>>> http://lists.cs.uiuc.edu/mailman/listinfo/cfe-commits
>>>
>>
>>
>
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