Reverted clang-check to fully supported CommandLine Library use-case: global
static variables.
llvm-svn: 162391
diff --git a/clang/lib/Tooling/CommonOptionsParser.cpp b/clang/lib/Tooling/CommonOptionsParser.cpp
new file mode 100644
index 0000000..eefd468
--- /dev/null
+++ b/clang/lib/Tooling/CommonOptionsParser.cpp
@@ -0,0 +1,79 @@
+//===--- CommonOptionsParser.cpp - common options for clang tools ---------===//
+//
+// The LLVM Compiler Infrastructure
+//
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+//
+// This file implements the CommonOptionsParser class used to parse common
+// command-line options for clang tools, so that they can be run as separate
+// command-line applications with a consistent common interface for handling
+// compilation database and input files.
+//
+// It provides a common subset of command-line options, common algorithm
+// for locating a compilation database and source files, and help messages
+// for the basic command-line interface.
+//
+// It creates a CompilationDatabase and reads common command-line options.
+//
+// This class uses the Clang Tooling infrastructure, see
+// http://clang.llvm.org/docs/HowToSetupToolingForLLVM.html
+// for details on setting it up with LLVM source tree.
+//
+//===----------------------------------------------------------------------===//
+
+#include "llvm/Support/CommandLine.h"
+#include "clang/Tooling/CommonOptionsParser.h"
+#include "clang/Tooling/Tooling.h"
+
+using namespace clang::tooling;
+using namespace llvm;
+
+const char *const clang::tooling::CommonHelpMessage =
+ "\n"
+ "-p <build-path> is used to read a compile command database.\n"
+ "\n"
+ "\tFor example, it can be a CMake build directory in which a file named\n"
+ "\tcompile_commands.json exists (use -DCMAKE_EXPORT_COMPILE_COMMANDS=ON\n"
+ "\tCMake option to get this output). When no build path is specified,\n"
+ "\tclang-check will attempt to locate it automatically using all parent\n"
+ "\tpaths of the first input file. See:\n"
+ "\thttp://clang.llvm.org/docs/HowToSetupToolingForLLVM.html for an\n"
+ "\texample of setting up Clang Tooling on a source tree.\n"
+ "\n"
+ "<source0> ... specify the paths of source files. These paths are\n"
+ "\tlooked up in the compile command database. If the path of a file is\n"
+ "\tabsolute, it needs to point into CMake's source tree. If the path is\n"
+ "\trelative, the current working directory needs to be in the CMake\n"
+ "\tsource tree and the file must be in a subdirectory of the current\n"
+ "\tworking directory. \"./\" prefixes in the relative files will be\n"
+ "\tautomatically removed, but the rest of a relative path must be a\n"
+ "\tsuffix of a path in the compile command database.\n"
+ "\n";
+
+static cl::opt<std::string> BuildPath(
+ "p", cl::desc("Build path"), cl::Optional);
+
+static cl::list<std::string> SourcePaths(
+ cl::Positional, cl::desc("<source0> [... <sourceN>]"), cl::OneOrMore);
+
+CommonOptionsParser::CommonOptionsParser(int &argc, const char **argv) {
+ Compilations.reset(FixedCompilationDatabase::loadFromCommandLine(argc,
+ argv));
+ cl::ParseCommandLineOptions(argc, argv);
+ SourcePathList = SourcePaths;
+ if (!Compilations) {
+ std::string ErrorMessage;
+ if (!BuildPath.empty()) {
+ Compilations.reset(CompilationDatabase::autoDetectFromDirectory(
+ BuildPath, ErrorMessage));
+ } else {
+ Compilations.reset(CompilationDatabase::autoDetectFromSource(
+ SourcePaths[0], ErrorMessage));
+ }
+ if (!Compilations)
+ llvm::report_fatal_error(ErrorMessage);
+ }
+}