Add command line option to ask Debugger to save a report.

- When invoked, starts up the CLI such that it bypasses waiting for
  input and instead save a crash report of the running team, then exits.
  Mainly intended to be used by debug_server.

src/apps/debugger/Debugger.cpp

@@ -56,8 +56,10 @@ static const char* kUsage =
 	"fourth form additionally stops the specified thread.\n"
 	"\n"
 	"Options:\n"
-	"  -h, --help    - Print this usage info and exit.\n"
-	"  -c, --cli     - Use command line user interface\n"
+	"  -h, --help        - Print this usage info and exit.\n"
+	"  -c, --cli         - Use command line user interface\n"
+	"  -s, --save-report - Save crash report for the targetted team and exit.\n"
+	"                      Implies --cli.\n"
 ;
 
 
@@ -76,6 +78,8 @@ struct Options {
 	team_id				team;
 	thread_id			thread;
 	bool				useCLI;
+	bool				saveReport;
+	const char*			reportPath;
 
 	Options()
 		:
@@ -83,7 +87,9 @@ struct Options {
 		commandLineArgv(NULL),
 		team(-1),
 		thread(-1),
-		useCLI(false)
+		useCLI(false),
+		saveReport(false),
+		reportPath(NULL)
 	{
 	}
 };
@@ -105,15 +111,16 @@ parse_arguments(int argc, const char* const* argv, bool noOutput,
 	while (true) {
 		static struct option sLongOptions[] = {
 			{ "help", no_argument, 0, 'h' },
+			{ "cli", no_argument, 0, 'c' },
+			{ "save-report", optional_argument, 0, 's' },
 			{ "team", required_argument, 0, 't' },
 			{ "thread", required_argument, 0, 'T' },
-			{ "cli", no_argument, 0, 'c' },
 			{ 0, 0, 0, 0 }
 		};
 
 		opterr = 0; // don't print errors
 
-		int c = getopt_long(argc, (char**)argv, "+ch", sLongOptions, NULL);
+		int c = getopt_long(argc, (char**)argv, "+chs", sLongOptions, NULL);
 		if (c == -1)
 			break;
 
@@ -128,6 +135,14 @@ parse_arguments(int argc, const char* const* argv, bool noOutput,
 				print_usage_and_exit(false);
 				break;
 
+			case 's':
+			{
+				options.useCLI = true;
+				options.saveReport = true;
+				options.reportPath = optarg;
+				break;
+			}
+
 			case 't':
 			{
 				options.team = strtol(optarg, NULL, 0);
@@ -581,7 +596,8 @@ CliDebugger::Run(const Options& options)
 
 	// create the command line UI
 	CommandLineUserInterface* userInterface
-		= new(std::nothrow) CommandLineUserInterface;
+		= new(std::nothrow) CommandLineUserInterface(options.saveReport,
+			options.reportPath);
 	if (userInterface == NULL) {
 		fprintf(stderr, "Error: Out of memory!\n");
 		return false;

src/apps/debugger/user_interface/cli/CommandLineUserInterface.cpp

@@ -88,9 +88,12 @@ private:
 // #pragma mark - CommandLineUserInterface
 
 
-CommandLineUserInterface::CommandLineUserInterface()
+CommandLineUserInterface::CommandLineUserInterface(bool saveReport,
+	const char* reportPath)
 	:
 	fCommands(20, true),
+	fReportPath(reportPath),
+	fSaveReport(saveReport),
 	fShowSemaphore(-1),
 	fShown(false),
 	fTerminating(false)
@@ -202,7 +205,18 @@ CommandLineUserInterface::Run()
 	if (error != B_OK)
 		return;
 
-	_InputLoop();
+	if (!fSaveReport)
+		_InputLoop();
+	else {
+		ArgumentVector args;
+		char buffer[256];
+		const char* parseErrorLocation;
+		snprintf(buffer, sizeof(buffer), "save-report %s",
+			fReportPath != NULL ? fReportPath : "");
+		args.Parse(buffer, &parseErrorLocation);
+		_ExecuteCommand(args.ArgumentCount(), args.Arguments());
+		fContext.QuitSession(true);
+	}
 
 	// Release the Show() semaphore to signal Terminate().
 	release_sem(fShowSemaphore);

src/apps/debugger/user_interface/cli/CommandLineUserInterface.h

@@ -19,7 +19,8 @@ class CliCommand;
 
 class CommandLineUserInterface : public UserInterface {
 public:
-								CommandLineUserInterface();
+								CommandLineUserInterface(bool saveReport,
+									const char* reportPath);
 	virtual						~CommandLineUserInterface();
 
 	virtual	const char*			ID() const;
@@ -70,6 +71,8 @@ private:
 private:
 			CliContext			fContext;
 			CommandList			fCommands;
+			const char*			fReportPath;
+			bool				fSaveReport;
 			sem_id				fShowSemaphore;
 			bool				fShown;
 	volatile bool				fTerminating;