external/bsd/atf/dist/atf-config/atf-config.cpp

   1 //
   2 // Automated Testing Framework (atf)
   3 //
   4 // Copyright (c) 2007 The NetBSD Foundation, Inc.
   5 // All rights reserved.
   6 //
   7 // Redistribution and use in source and binary forms, with or without
   8 // modification, are permitted provided that the following conditions
   9 // are met:
  10 // 1. Redistributions of source code must retain the above copyright
  11 //    notice, this list of conditions and the following disclaimer.
  12 // 2. Redistributions in binary form must reproduce the above copyright
  13 //    notice, this list of conditions and the following disclaimer in the
  14 //    documentation and/or other materials provided with the distribution.
  15 //
  16 // THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND
  17 // CONTRIBUTORS ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES,
  18 // INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
  19 // MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
  20 // IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS BE LIABLE FOR ANY
  21 // DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  22 // DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE
  23 // GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
  24 // INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER
  25 // IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
  26 // OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN
  27 // IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  28 //
  29
  30 #include <cstdlib>
  31 #include <iostream>
  32 #include <map>
  33 #include <string>
  34
  35 extern "C" {
  36 #include "atf-c/defs.h"
  37 }
  38
  39 #include "atf-c++/config.hpp"
  40
  41 #include "atf-c++/detail/application.hpp"
  42 #include "atf-c++/detail/sanity.hpp"
  43
  44 class atf_config : public atf::application::app {
  45     static const char* m_description;
  46
  47     bool m_tflag;
  48
  49     void process_option(int, const char*);
  50     std::string specific_args(void) const;
  51     options_set specific_options(void) const;
  52
  53     std::string format_var(const std::string&, const std::string&);
  54
  55 public:
  56     atf_config(void);
  57
  58     int main(void);
  59 };
  60
  61 const char* atf_config::m_description =
  62     "atf-config is a tool that queries the value of several "
  63     "installation-specific configuration values of the atf.  "
  64     "It can be used by external tools to discover where specific "
  65     "internal atf files are installed.";
  66
  67 atf_config::atf_config(void) :
  68     app(m_description, "atf-config(1)", "atf(7)"),
  69     m_tflag(false)
  70 {
  71 }
  72
  73 void
  74 atf_config::process_option(int ch, const char* arg ATF_DEFS_ATTRIBUTE_UNUSED)
  75 {
  76     switch (ch) {
  77     case 't':
  78         m_tflag = true;
  79         break;
  80
  81     default:
  82         UNREACHABLE;
  83     }
  84 }
  85
  86 std::string
  87 atf_config::specific_args(void)
  88     const
  89 {
  90     return "[var1 [.. varN]]";
  91 }
  92
  93 atf_config::options_set
  94 atf_config::specific_options(void)
  95     const
  96 {
  97     using atf::application::option;
  98     options_set opts;
  99     opts.insert(option('t', "", "Terse output: show values only"));
 100     return opts;
 101 }
 102
 103 std::string
 104 atf_config::format_var(const std::string& name, const std::string& val)
 105 {
 106     std::string str;
 107
 108     if (m_tflag)
 109         str = val;
 110     else
 111         str = name + " : " + val;
 112
 113     return str;
 114 }
 115
 116 int
 117 atf_config::main(void)
 118 {
 119     if (m_argc < 1) {
 120         std::map< std::string, std::string > cv = atf::config::get_all();
 121
 122         for (std::map< std::string, std::string >::const_iterator iter =
 123              cv.begin(); iter != cv.end(); iter++)
 124             std::cout << format_var((*iter).first, (*iter).second) << "\n";
 125     } else {
 126         for (int i = 0; i < m_argc; i++) {
 127             if (!atf::config::has(m_argv[i]))
 128                 throw std::runtime_error(std::string("Unknown variable `") +
 129                                          m_argv[i] + "'");
 130         }
 131
 132         for (int i = 0; i < m_argc; i++) {
 133             std::cout << format_var(m_argv[i], atf::config::get(m_argv[i]))
 134                       << "\n";
 135         }
 136     }
 137
 138     return EXIT_SUCCESS;
 139 }
 140
 141 int
 142 main(int argc, char* const* argv)
 143 {
 144     return atf_config().run(argc, argv);
 145 }