Add build tool create_repository_config

Given a repository base URL and a repository info, it creates a
repository config file.

src/tools/Jamfile

@@ -88,6 +88,7 @@ SubInclude HAIKU_TOP src tools addattr ;
 SubInclude HAIKU_TOP src tools anyboot ;
 SubInclude HAIKU_TOP src tools bfs_shell ;
 SubInclude HAIKU_TOP src tools cppunit ;
+SubInclude HAIKU_TOP src tools create_repository_config ;
 SubInclude HAIKU_TOP src tools docbook ;
 SubInclude HAIKU_TOP src tools elfsymbolpatcher ;
 SubInclude HAIKU_TOP src tools fixup_amiga_boot_checksum ;

src/tools/create_repository_config/Jamfile

@@ -0,0 +1,11 @@
+SubDir HAIKU_TOP src tools create_repository_config ;
+
+SEARCH_SOURCE += [ FDirName $(HAIKU_TOP) src bin pkgman ] ;
+
+USES_BE_API on <build>create_repository_config = true ;
+
+BuildPlatformMain <build>create_repository_config :
+	create_repository_config.cpp
+	:
+	libpackage_build.so $(HOST_LIBBE) $(HOST_LIBSTDC++)
+	;

src/tools/create_repository_config/create_repository_config.cpp

@@ -0,0 +1,78 @@
+/*
+ * Copyright 2013, Haiku, Inc. All Rights Reserved.
+ * Distributed under the terms of the MIT License.
+ *
+ * Authors:
+ *		Ingo Weinhold <ingo_weinhold@gmx.de>
+ */
+
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+
+#include <package/RepositoryConfig.h>
+#include <package/RepositoryInfo.h>
+
+
+#define DIE(error, ...)								\
+	do {											\
+		fprintf(stderr, "Error: " __VA_ARGS__);		\
+		fprintf(stderr, ": %s\n", strerror(error));	\
+		exit(1);									\
+	} while (false)
+
+#define DIE_ON_ERROR(error, ...)		\
+	do {								\
+		status_t _error = error;		\
+		if (error != B_OK)				\
+			DIE(_error, __VA_ARGS__);	\
+	} while (false)
+
+
+static const char* sProgramName = "create_repository_config";
+
+
+void
+print_usage_and_exit(bool error)
+{
+	fprintf(error ? stderr : stdout,
+		"Usage: %s <URL> <repository info> <repository config>\n"
+		"Creates a repository config file from a given base URL (the\n"
+		"directory in which the \"repo\", \"repo.info\', and \"repo.sha256\n"
+		"files can be found.\n",
+		sProgramName);
+	exit(error ? 1 : 0);
+}
+
+
+int
+main(int argc, const char* const* argv)
+{
+	if (argc != 4) {
+		if (argc == 2
+			&& (strcmp(argv[1], "-h") == 0 || strcmp(argv[1], "--help") == 0)) {
+				print_usage_and_exit(false);
+		}
+		print_usage_and_exit(true);
+	}
+
+	const char* url = argv[1];
+	const char* infoPath = argv[2];
+	const char* configPath = argv[3];
+
+	// read the info
+	BPackageKit::BRepositoryInfo repoInfo;
+	DIE_ON_ERROR(repoInfo.SetTo(infoPath),
+		"failed to read repository info file \"%s\"", infoPath);
+
+	// init and write the config
+	BPackageKit::BRepositoryConfig repoConfig;
+	repoConfig.SetName(repoInfo.Name());
+	repoConfig.SetBaseURL(url);
+	repoConfig.SetPriority(repoInfo.Priority());
+	DIE_ON_ERROR(repoConfig.Store(configPath),
+		"failed to write repository config file \"%s\"", configPath);
+
+	return 0;
+}