| /* |
| * Copyright 2011 Google Inc. |
| * |
| * Licensed under the Apache License, Version 2.0 (the "License"); |
| * you may not use this file except in compliance with the License. |
| * You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| */ |
| |
| // Author: jmarantz@google.com (Joshua Marantz) |
| |
| #ifndef NET_INSTAWEB_REWRITER_PUBLIC_REWRITE_GFLAGS_H_ |
| #define NET_INSTAWEB_REWRITER_PUBLIC_REWRITE_GFLAGS_H_ |
| |
| #include "pagespeed/kernel/base/basictypes.h" |
| |
| namespace net_instaweb { |
| |
| class MessageHandler; |
| class RewriteDriverFactory; |
| class RewriteOptions; |
| |
| // Implements rewriter options as command-line options, using the |
| // Google "gflags" package. |
| class RewriteGflags { |
| public: |
| // The constructor parses the options. |
| RewriteGflags(const char* progname, int* argc, char*** argv); |
| |
| // Constructor that does no option parsing. |
| RewriteGflags() {} |
| |
| // Apply the parsed options to the options and factory. Note that some of |
| // the command-line flags control how the factory is constructed, whereas |
| // others affect the rewriting options, and should be considered global |
| // defaults. |
| bool SetOptions(RewriteDriverFactory* factory, RewriteOptions* options) const; |
| |
| // Like above, but doesn't expect a RewriteDriverFactory. |
| bool SetupOptionsOnly(RewriteOptions* options, MessageHandler* handler) const; |
| |
| // Like above, but only modifies the RewriteDriverFactory. |
| void SetupFactoryOnly(RewriteDriverFactory* factory) const; |
| |
| // LRU size is potentially needed at factory construction time so it |
| // is exposed as a method. |
| int64 lru_cache_size_bytes() const; |
| |
| // Determines whether a flag was explicitly set, as opposed to having its |
| // default value. |
| static bool WasExplicitlySet(const char* name); |
| |
| // Sets the rewrite level/list passed on the specified option names |
| // & values. The flag names are passed in to provide better error |
| // messages. |
| // |
| // False is returned if the values cannot be parsed. |
| bool SetRewriters(const char* rewriters_flag_name, |
| const char* rewriters_value, |
| const char* rewrite_level_flag_name, |
| const char* rewrite_level_value, |
| RewriteOptions* options, |
| MessageHandler* handler) const; |
| |
| private: |
| // There is no data in this class because the underlying gflags |
| // class holds the parsed options in globals. |
| |
| DISALLOW_COPY_AND_ASSIGN(RewriteGflags); |
| }; |
| |
| } // namespace net_instaweb |
| |
| #endif // NET_INSTAWEB_REWRITER_PUBLIC_REWRITE_GFLAGS_H_ |