//===----------------------------------------------------------------------===//
#include "llvm/ADT/StringRef.h"
-#include "llvm/Support/raw_ostream.h"
+#include "llvm/ADT/StringSwitch.h"
+#include "llvm/Support/CommandLine.h"
#include "llvm/Support/Path.h"
+#include "llvm/Support/Process.h"
+#include "llvm/Support/raw_ostream.h"
#include <string>
using namespace llvm;
/// \brief The main entry point for the 'show' subcommand.
-int show_main(int argc, const char **argv);
+int showMain(int argc, const char *argv[]);
/// \brief The main entry point for the 'report' subcommand.
-int report_main(int argc, const char **argv);
+int reportMain(int argc, const char *argv[]);
/// \brief The main entry point for the 'convert-for-testing' subcommand.
-int convert_for_testing_main(int argc, const char **argv);
+int convertForTestingMain(int argc, const char *argv[]);
/// \brief The main entry point for the gcov compatible coverage tool.
-int gcov_main(int argc, const char **argv);
+int gcovMain(int argc, const char *argv[]);
+
+/// \brief Top level help.
+static int helpMain(int argc, const char *argv[]) {
+ errs() << "Usage: llvm-cov {gcov|report|show} [OPTION]...\n\n"
+ << "Shows code coverage information.\n\n"
+ << "Subcommands:\n"
+ << " gcov: Work with the gcov format.\n"
+ << " show: Annotate source files using instrprof style coverage.\n"
+ << " report: Summarize instrprof style coverage information.\n";
+ return 0;
+}
+
+/// \brief Top level version information.
+static int versionMain(int argc, const char *argv[]) {
+ cl::PrintVersionMessage();
+ return 0;
+}
int main(int argc, const char **argv) {
// If argv[0] is or ends with 'gcov', always be gcov compatible
if (sys::path::stem(argv[0]).endswith_lower("gcov"))
- return gcov_main(argc, argv);
+ return gcovMain(argc, argv);
// Check if we are invoking a specific tool command.
if (argc > 1) {
- int (*func)(int, const char **) = nullptr;
-
- StringRef command = argv[1];
- if (command.equals_lower("show"))
- func = show_main;
- else if (command.equals_lower("report"))
- func = report_main;
- else if (command.equals_lower("convert-for-testing"))
- func = convert_for_testing_main;
- else if (command.equals_lower("gcov"))
- func = gcov_main;
+ typedef int (*MainFunction)(int, const char *[]);
+ MainFunction Func = StringSwitch<MainFunction>(argv[1])
+ .Case("convert-for-testing", convertForTestingMain)
+ .Case("gcov", gcovMain)
+ .Case("report", reportMain)
+ .Case("show", showMain)
+ .Cases("-h", "-help", "--help", helpMain)
+ .Cases("-version", "--version", versionMain)
+ .Default(nullptr);
- if (func) {
- std::string Invocation(std::string(argv[0]) + " " + argv[1]);
+ if (Func) {
+ std::string Invocation = std::string(argv[0]) + " " + argv[1];
argv[1] = Invocation.c_str();
- return func(argc - 1, argv + 1);
+ return Func(argc - 1, argv + 1);
}
}
- // Give a warning and fall back to gcov
- errs().changeColor(raw_ostream::RED);
- errs() << "warning:";
- // Assume that argv[1] wasn't a command when it stats with a '-' or is a
- // filename (i.e. contains a '.')
- if (argc > 1 && !StringRef(argv[1]).startswith("-") &&
- StringRef(argv[1]).find(".") == StringRef::npos)
- errs() << " Unrecognized command '" << argv[1] << "'.";
- errs() << " Using the gcov compatible mode "
- "(this behaviour may be dropped in the future).";
- errs().resetColor();
- errs() << "\n";
-
- return gcov_main(argc, argv);
+ if (argc > 1) {
+ if (sys::Process::StandardErrHasColors())
+ errs().changeColor(raw_ostream::RED);
+ errs() << "Unrecognized command: " << argv[1] << ".\n\n";
+ if (sys::Process::StandardErrHasColors())
+ errs().resetColor();
+ }
+ helpMain(argc, argv);
+ return 1;
}