1 // Copyright 2011 Google Inc. 2 // All rights reserved. 3 // 4 // Redistribution and use in source and binary forms, with or without 5 // modification, are permitted provided that the following conditions are 6 // met: 7 // 8 // * Redistributions of source code must retain the above copyright 9 // notice, this list of conditions and the following disclaimer. 10 // * Redistributions in binary form must reproduce the above copyright 11 // notice, this list of conditions and the following disclaimer in the 12 // documentation and/or other materials provided with the distribution. 13 // * Neither the name of Google Inc. nor the names of its contributors 14 // may be used to endorse or promote products derived from this software 15 // without specific prior written permission. 16 // 17 // THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 18 // "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 19 // LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR 20 // A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT 21 // OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 22 // SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT 23 // LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 24 // DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 25 // THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 26 // (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 27 // OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 28 29 #include "cli/cmd_config.hpp" 30 31 #include <cstdlib> 32 33 #include "cli/common.ipp" 34 #include "utils/config/tree.ipp" 35 #include "utils/format/macros.hpp" 36 37 namespace cmdline = utils::cmdline; 38 namespace config = utils::config; 39 40 using cli::cmd_config; 41 42 43 namespace { 44 45 46 /// Prints all configuration variables. 47 /// 48 /// \param ui Object to interact with the I/O of the program. 49 /// \param properties The key/value map representing all the configuration 50 /// variables. 51 /// 52 /// \return 0 for success. 53 static int 54 print_all(cmdline::ui* ui, const config::properties_map& properties) 55 { 56 for (config::properties_map::const_iterator iter = properties.begin(); 57 iter != properties.end(); iter++) 58 ui->out(F("%s = %s") % (*iter).first % (*iter).second); 59 return EXIT_SUCCESS; 60 } 61 62 63 /// Prints the configuration variables that the user requests. 64 /// 65 /// \param ui Object to interact with the I/O of the program. 66 /// \param properties The key/value map representing all the configuration 67 /// variables. 68 /// \param filters The names of the configuration variables to print. 69 /// 70 /// \return 0 if all specified filters are valid; 1 otherwise. 71 static int 72 print_some(cmdline::ui* ui, const config::properties_map& properties, 73 const cmdline::args_vector& filters) 74 { 75 bool ok = true; 76 77 for (cmdline::args_vector::const_iterator iter = filters.begin(); 78 iter != filters.end(); iter++) { 79 const config::properties_map::const_iterator match = 80 properties.find(*iter); 81 if (match == properties.end()) { 82 cmdline::print_warning(ui, F("'%s' is not defined") % *iter); 83 ok = false; 84 } else 85 ui->out(F("%s = %s") % (*match).first % (*match).second); 86 } 87 88 return ok ? EXIT_SUCCESS : EXIT_FAILURE; 89 } 90 91 92 } // anonymous namespace 93 94 95 /// Default constructor for cmd_config. 96 cmd_config::cmd_config(void) : cli_command( 97 "config", "[variable1 .. variableN]", 0, -1, 98 "Inspects the values of configuration variables") 99 { 100 } 101 102 103 /// Entry point for the "config" subcommand. 104 /// 105 /// \param ui Object to interact with the I/O of the program. 106 /// \param cmdline Representation of the command line to the subcommand. 107 /// \param user_config The runtime configuration of the program. 108 /// 109 /// \return 0 if everything is OK, 1 if any of the necessary documents cannot be 110 /// opened. 111 int 112 cmd_config::run(cmdline::ui* ui, const cmdline::parsed_cmdline& cmdline, 113 const config::tree& user_config) 114 { 115 const config::properties_map properties = user_config.all_properties(); 116 if (cmdline.arguments().empty()) 117 return print_all(ui, properties); 118 else 119 return print_some(ui, properties, cmdline.arguments()); 120 } 121