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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,130 @@ | ||
| '''This file provides editor completions while working on DFHack using ycmd: | ||
| https://github.com/Valloric/ycmd | ||
| ''' | ||
|
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| # pylint: disable=import-error,invalid-name,missing-docstring,unused-argument | ||
|
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| import os | ||
| import ycm_core | ||
|
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||
| def DirectoryOfThisScript(): | ||
| return os.path.dirname(os.path.abspath(__file__)) | ||
|
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| # We need to tell YouCompleteMe how to compile this project. We do this using | ||
| # clang's "Compilation Database" system, which essentially just dumps a big | ||
| # json file into the build folder. | ||
| # More details: http://clang.llvm.org/docs/JSONCompilationDatabase.html | ||
| # | ||
| # We don't use clang, but luckily CMake supports generating a database on its | ||
| # own, using: | ||
| # set( CMAKE_EXPORT_COMPILE_COMMANDS 1 ) | ||
|
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||
| for potential_build_folder in ['build', 'build-osx']: | ||
| if os.path.exists(DirectoryOfThisScript() + os.path.sep + potential_build_folder | ||
| + os.path.sep + 'compile_commands.json'): | ||
| database = ycm_core.CompilationDatabase(potential_build_folder) | ||
| break | ||
| else: | ||
| raise RuntimeError("Can't find dfhack build folder: not one of build, build-osx") | ||
|
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|
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| def MakeRelativePathsInFlagsAbsolute(flags, working_directory): | ||
| if not working_directory: | ||
| return list(flags) | ||
| new_flags = [] | ||
| make_next_absolute = False | ||
| path_flags = ['-isystem', '-I', '-iquote', '--sysroot='] | ||
| for flag in flags: | ||
| new_flag = flag | ||
|
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||
| if make_next_absolute: | ||
| make_next_absolute = False | ||
| if not flag.startswith('/'): | ||
| new_flag = os.path.join(working_directory, flag) | ||
|
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| for path_flag in path_flags: | ||
| if flag == path_flag: | ||
| make_next_absolute = True | ||
| break | ||
|
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| if flag.startswith(path_flag): | ||
| path = flag[len(path_flag):] | ||
| new_flag = path_flag + os.path.join(working_directory, path) | ||
| break | ||
|
|
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| if new_flag: | ||
| new_flags.append(new_flag) | ||
| return new_flags | ||
|
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||
|
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| def IsHeaderFile(filename): | ||
| extension = os.path.splitext(filename)[1] | ||
| return extension in ['.h', '.hxx', '.hpp', '.hh'] | ||
|
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| SOURCE_EXTENSIONS = ['.cpp', '.cxx', '.cc', '.c', '.m', '.mm'] | ||
|
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| def PotentialAlternatives(header): | ||
| dirname, filename = os.path.split(header) | ||
| basename, _ = os.path.splitext(filename) | ||
|
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| source_dirs = [dirname] | ||
|
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| if dirname.endswith(os.path.sep + 'include'): | ||
| # if we're in a folder 'include', also look in its parent | ||
| parent = os.path.abspath(os.path.join(dirname, os.path.pardir)) | ||
| source_dirs.append(parent) | ||
| # and ../src (used by lua dependency) | ||
| source_dirs.append(os.path.join(parent, 'src')) | ||
|
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| include_idx = dirname.rfind(os.path.sep + 'include' + os.path.sep) | ||
| if include_idx != -1: | ||
| # we're in a subfolder of a parent '/include/' | ||
| # .../include/subdir/path | ||
| # look in .../subdir/path | ||
| source_dirs.append( | ||
| dirname[:include_idx] + | ||
| os.path.sep + | ||
| dirname[include_idx + len('include') + 2*len(os.path.sep):] | ||
| ) | ||
|
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| for source_dir in source_dirs: | ||
| for ext in SOURCE_EXTENSIONS: | ||
| yield source_dir + os.path.sep + basename + ext | ||
|
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| def GetCompilationInfoForFile(filename): | ||
| # The compilation_commands.json file generated by CMake does not have entries | ||
| # for header files. So we do our best by asking the db for flags for a | ||
| # corresponding source file, if any. If one exists, the flags for that file | ||
| # should be good enough. | ||
| if IsHeaderFile(filename): | ||
| for alternative in PotentialAlternatives(filename): | ||
| if os.path.exists(alternative): | ||
| compilation_info = database.GetCompilationInfoForFile( | ||
| alternative | ||
| ) | ||
|
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| if compilation_info.compiler_flags_: | ||
| return compilation_info | ||
| return None | ||
| else: | ||
| return database.GetCompilationInfoForFile(filename) | ||
|
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| def FlagsForFile(filename, **kwargs): | ||
| # Bear in mind that compilation_info.compiler_flags_ does NOT return a | ||
| # python list, but a "list-like" StringVec object | ||
| compilation_info = GetCompilationInfoForFile(filename) | ||
| if not compilation_info: | ||
| return None | ||
|
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| final_flags = MakeRelativePathsInFlagsAbsolute( | ||
| compilation_info.compiler_flags_, | ||
| compilation_info.compiler_working_dir_ | ||
| ) | ||
|
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| return { | ||
| 'flags': final_flags, | ||
| 'do_cache': True | ||
| } |
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